ARTICLE OF FOOTWEAR HAVING A DISPLAY SYSTEM

CROSS REFERENCE TO RELATED APPLICATIONS

[0001]This application claims the benefit of and priority to U.S. Provisional Patent Application No. 63/461,475, filed on Apr. 24, 2023, which is incorporated by reference herein in its entirety.

REFERENCE REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

[0002]Not applicable.

SEQUENCE LISTING

[0003]Not applicable.

BACKGROUND

1. Field of the Invention

[0004]The present disclosure relates generally to an article of footwear including a display system.

2. Description of the Background

[0005]Many conventional shoes or other articles of footwear generally comprise an upper and a sole attached to a lower end of the upper. Conventional shoes further include an internal space, i.e., a void or cavity, which is created by interior surfaces of the upper and sole, that receives a foot of a user before securing the shoe to the foot. The sole is attached to a lower surface or boundary of the upper and is positioned between the upper and the ground. As a result, the sole typically provides stability and cushioning to the user when the shoe is being worn. In some instances, the sole may include multiple components, such as an outsole, a midsole, and a top portion. The outsole may provide traction to a bottom surface of the sole, and the midsole may be attached to an inner surface of the outsole, and may provide cushioning or added stability to the sole. For example, a sole may include a particular foam material that may increase stability at one or more desired locations along the sole, or a foam material that may reduce stress or impact energy on the foot or leg when a user is running, walking, or engaged in another activity. The sole may also include additional components, such as plates, embedded with the sole to increase the overall stiffness of the sole and reduce energy loss during use.

[0006]The upper generally extends upward from the sole and defines an interior cavity that completely or partially encases a foot. In most cases, the upper extends over the instep and toe regions of the foot, and across medial and lateral sides thereof. Many articles of footwear may also include a tongue that extends across the instep region to bridge a gap between edges of medial and lateral sides of the upper, which define an opening into the cavity. The tongue may also be disposed below a lacing system and between medial and lateral sides of the upper, to allow for adjustment of shoe tightness. The tongue may further be manipulatable by a user to permit entry or exit of a foot from the internal space or cavity. In addition, the lacing system may allow a user to adjust certain dimensions of the upper or the sole, thereby allowing the upper to accommodate a wide variety of foot types having varying sizes and shapes.

[0007]The upper of many shoes may comprise a wide variety of materials, which may be utilized to form the upper and chosen for use based on one or more intended uses of the shoe. The upper may also include portions comprising varying materials specific to a particular area of the upper. For example, added stability may be desirable at a front of the upper or adjacent a heel region to provide a higher degree of resistance or rigidity. In contrast, other portions of a shoe may include a soft woven textile to provide an area with stretch-resistance, flexibility, air-permeability, or moisture-wicking properties.

[0008]However, in many cases, articles of footwear are provided with materials provided for visual communication and aesthetic purposes. For example, articles of footwear may be provided with reflective materials for improving visibility of a user. There is a continuing need for articles of footwear with materials provided for visual communication and aesthetic purposes.

SUMMARY

[0009]An article of footwear, as described herein, may have various configurations. The article of footwear may have an upper and a sole structure connected to the upper.

[0010]In some aspects, a display system for an article of footwear includes a display device that includes an optoelectronic display, a control module that is configured to communicate with the display device, and a power source. The display device is connected to a cable fastening system. The cable fastening system is configured to provide an electrical signal to the display device and is configured to tighten the article of footwear.

[0011]In some aspects, an article of footwear includes an upper attached to a sole structure and a first display device disposed on the upper within a forefoot region of the footwear and a second display device disposed on the upper within a heel region of the footwear. The first display device and the second display device include an optoelectronic display.

[0012]In some aspects, a display system for an article of footwear includes a display device that is visible from an exterior of the article of footwear, a power source that is configured to be removably attached to the article of footwear, and a control unit that is configured to be operable from the exterior of the article of footwear. The display device is electrically connected to the control unit and the display device includes electrophoretic ink. The display device includes an electrical contact disposed along a periphery of an upper.

[0013]Other aspects of the article of footwear, including features and advantages thereof, will become apparent to one of ordinary skill in the art upon examination of the figures and detailed description herein. Therefore, all such aspects of the article of footwear are intended to be included in the detailed description and this summary.

BRIEF DESCRIPTION OF THE DRAWINGS

[0014]FIG. 1 is a perspective view of a bottom and medial side of an article of footwear configured as a right shoe that includes an upper and a sole structure, according to an embodiment of the disclosure;

[0015]FIG. 2 is a top view of the article of footwear of FIG. 1;

[0016]FIG. 3 is a top plan view of the article of footwear of FIG. 1, with an upper removed and a user's skeletal foot structure overlaid thereon;

[0017]FIG. 4 is a schematic representation of a perspective view of a medial side of an article of footwear configured as a right shoe, according to another embodiment of the disclosure;

[0018]FIG. 5 is a schematic representation of a perspective view of a medial side of an article of footwear configured as a right shoe, according to yet another embodiment of the disclosure; and

[0019]FIG. 6 is a schematic representation of an elevational view of a medial side of an article of footwear configured as a left shoe, according to still another embodiment of the disclosure.

DETAILED DESCRIPTION OF THE DRAWINGS

[0020]The following discussion and accompanying figures disclose various embodiments or configurations of a shoe and a sole structure. Although embodiments of a shoe or sole structure are disclosed with reference to a sports shoe, such as a running shoe, tennis shoe, basketball shoe, etc., concepts associated with embodiments of the shoe or the sole structure may be applied to a wide range of footwear and footwear styles, including cross-training shoes, football shoes, golf shoes, hiking shoes, hiking boots, ski and snowboard boots, soccer shoes and cleats, walking shoes, and track cleats, for example. Concepts of the shoe or the sole structure may also be applied to articles of footwear that are considered non-athletic, including dress shoes, sandals, loafers, slippers, and heels. In addition to footwear, particular concepts described herein may also be applied and incorporated in other types of apparel or other athletic equipment, including helmets, padding or protective pads, shin guards, and gloves. Even further, particular concepts described herein may be incorporated in cushions, backpack straps, golf clubs, or other consumer or industrial products. Accordingly, concepts described herein may be utilized in a variety of products.

[0021]The term “about,” as used herein, refers to variation in the numerical quantity that may occur, for example, through typical measuring and manufacturing procedures used for articles of footwear or other articles of manufacture that may include embodiments of the disclosure herein; through inadvertent error in these procedures; through differences in the manufacture, source, or purity of the ingredients used to make the compositions or mixtures or carry out the methods; and the like. Throughout the disclosure, the terms “about” and “approximately” refer to a range of values±5% of the numeric value that the term precedes.

[0022]The present disclosure is directed to an article of footwear and/or specific components of the article of footwear, such as an upper and/or a sole or sole structure. The upper may comprise a knitted component, a woven textile, and/or a non-woven textile. The knitted component may be made by knitting of yarn, the woven textile by weaving of yarn, and the non-woven textile by manufacture of a unitary non-woven web. Knitted textiles include textiles formed by way of warp knitting, weft knitting, flat knitting, circular knitting, and/or other suitable knitting operations. The knit textile may have a plain knit structure, a mesh knit structure, and/or a rib knit structure, for example. Woven textiles include, but are not limited to, textiles formed by way of any of the numerous weave forms, such as plain weave, twill weave, satin weave, dobbin weave, jacquard weave, double weaves, and/or double cloth weaves, for example. Non-woven textiles include textiles made by air-laid and/or spun-laid methods, for example. The upper may comprise a variety of materials, such as a first yarn, a second yarn, and/or a third yarn, which may have varying properties or varying visual characteristics.

[0023]FIGS. 1-3 depict an exemplary embodiment of an article of footwear 100 including an upper 102 and a sole structure 104. The upper 102 is attached to the sole structure 104 and together define an interior cavity 106 (see FIGS. 2 and 3) into which a foot may be inserted. For reference, the article of footwear 100 defines a forefoot region 108, a midfoot region 110, and a heel region 112 (see FIGS. 2 and 3). The forefoot region 108 generally corresponds with portions of the article of footwear 100 that encase portions of the foot that includes the toes, the ball of the foot, and joints connecting the metatarsals with the toes or phalanges. The midfoot region 110 is proximate and adjoining the forefoot region 108, and generally corresponds with portions of the article of footwear 100 that encase the arch of the foot, along with the bridge of the foot. The heel region 112 is proximate and adjoining the midfoot region 110 and generally corresponds with portions of the article of footwear 100 that encase rear portions of the foot, including the heel or calcaneus bone, the ankle, and/or the Achilles tendon.

[0024]Many conventional footwear uppers are formed from multiple elements, e.g., textiles, polymer foam, polymer sheets, leather, and synthetic leather, which are joined through bonding or stitching at a seam. In some embodiments, the upper 102 of the article of footwear 100 is formed from a knitted structure or knitted components. In various embodiments, a knitted component may incorporate various types of yarn that may provide different properties to an upper. For example, one area of the upper 102 may be formed from a first type of yarn that imparts a first set of properties, and another area of the upper 102 may be formed from a second type of yarn that imparts a second set of properties. Using this configuration, properties of the upper 102 may vary throughout the upper 102 by selecting specific yarns for different areas of the upper 102.

[0025]With reference to the material(s) that comprise the upper 102, the specific properties that a particular type of yarn will impart to an area of a knitted component may at least partially depend upon the materials that form the various filaments and fibers of the yarn. For example, cotton may provide a soft effect, biodegradability, or a natural aesthetic to a knitted material. Elastane and stretch polyester may each provide a knitted component with a desired elasticity and recovery. Rayon may provide a high luster and moisture absorbent material, wool may provide a material with an increased moisture absorbance, nylon may be a durable material that is abrasion-resistant, and polyester may provide a hydrophobic, durable material.

[0026]Other aspects of a knitted component may also be varied to affect the properties of the knitted component and provide desired attributes. For example, a yarn forming a knitted component may include monofilament yarn or multifilament yarn, or the yarn may include filaments that are each formed of two or more different materials. In addition, a knitted component may be formed using a particular knitting process to impart an area of a knitted component with particular properties. Accordingly, both the materials forming the yarn and other aspects of the yarn may be selected to impart a variety of properties to particular areas of the upper 102.

[0027]In some embodiments, an elasticity of a knit structure may be measured based on comparing a width or length of the knit structure in a first, non-stretched state to a width or length of the knit structure in a second, stretched state after the knit structure has a force applied to the knit structure in a lateral direction. In further embodiments, the upper 102 may also include additional structural elements. For example, in some embodiments, a heel plate or cover (not shown) may be provided on the heel region 112 to provide added support to a heel of a user. In some instances, other elements, e.g., plastic material, logos, trademarks, etc., may also be applied and fixed to an exterior surface using glue or a thermoforming process. In some embodiments, the properties associated with the upper 102, e.g., a stitch type, a yarn type, or characteristics associated with different stitch types or yarn types, such as elasticity, aesthetic appearance, thickness, air permeability, or scuff-resistance, may be varied.

[0028]Referring again to FIG. 1, the sole structure 104 is connected or secured to the upper 102 and extends between a foot of a user and the ground when the article of footwear 100 is worn by the user. The sole structure 104 may include one or more components, which may include an outsole, a midsole, a heel, a vamp, and/or an insole. For example, in some embodiments, a sole structure may include an outsole that provides structural integrity to the sole structure, along with providing traction for a user, a midsole that provides a cushioning system, and an insole that provides support for an arch of a user. In addition, the insole may be a strobel board, a forefoot board, a lasting board, etc., or a combination thereof, and the insole may be provided between the upper 102 and the sole structure 104, or the insole may be provided as part of the upper 102.

[0029]Furthermore, the insole can be positioned within the interior cavity 106 of the upper 102, which can be in direct contact with a user's foot while an article of footwear 100 is being worn. Moreover, the upper 102 may also include a liner (not shown) that can increase comfort, for example, by reducing friction between the foot of the user and the upper 102, the sole 104, the insole, or the like, and/or by providing moisture wicking properties. The liner may line the entirety of the interior cavity 106 or only a portion thereof. In some embodiments, a binding (not shown) may surround an opening of the interior cavity 106 to secure the liner to the upper 102 and/or to provide an aesthetic element on the article of footwear 100.

[0030]Referring to FIGS. 2 and 3, the article of footwear 100 also defines a lateral side 116 and a medial side 118. When a user is wearing the shoes, the lateral side 116 corresponds with an outside-facing portion of the article of footwear 100 while the medial side 118 corresponds with an inside-facing portion of the article of footwear 100. As such, the article of footwear 100 has opposing lateral sides 116 and medial sides 118. The medial side 118 and the lateral side 116 adjoin one another along a longitudinal central plane or axis 120 of the article of footwear 100, which is coplanar with the longitudinal axis L of FIG. 1. As will be further discussed herein, the longitudinal central plane or axis 120 may demarcate a central, intermediate axis between the medial side 118 and the lateral side 116 of the article of footwear 100. Put differently, the longitudinal plane or axis 120 may extend between a rear, proximal end 122 of the article of footwear 100 and a front, distal end 124 of the article of footwear 100 and may continuously define a middle of an insole 126, the sole structure 104, and/or the upper 102 of the article of footwear 100, i.e., the longitudinal plane or axis 120 is a straight axis extending through the rear, proximal end 122 of the heel region 112 to the front, distal end 124 of the forefoot region 108.

[0031]Unless otherwise specified, and referring to FIGS. 2 and 3, the article of footwear 100 may be defined by the forefoot region 108, the midfoot region 110, and the heel region 112. The forefoot region 108 may generally correspond with portions of the article of footwear 100 that encase portions of a foot 128 that include the toes or phalanges 130, the ball of the foot 132, and one or more of the joints 134 that connect the metatarsals 136 of the foot 128 with the toes or phalanges 130. The midfoot region 110 is proximate and adjoins the forefoot region 108. The midfoot region 110 generally corresponds with portions of the article of footwear 100 that encase an arch of a foot 128, along with a bridge of the foot 128. The heel region 112 is proximate to the midfoot region 110 and adjoins the midfoot region 110. The heel region 112 generally corresponds with portions of the article of footwear 100 that encase rear portions of the foot 128, including the heel or calcaneus bone 138, the ankle (not shown), and/or the Achilles tendon (not shown).

[0032]Still referring to FIGS. 2 and 3, the forefoot region 108, the midfoot region 110, the heel region 112, the medial side 118, and the lateral side 116 are intended to define boundaries or areas of the article of footwear 100. To that end, the forefoot region 108, the midfoot region 110, the heel region 112, the medial side 118, and the lateral side 116 generally characterize sections of the article of footwear 100. Certain aspects of the disclosure may refer to portions or elements that are coextensive with one or more of the forefoot region 108, the midfoot region 110, the heel region 112, the medial side 118, and/or the lateral side 116. Further, both the upper 102 and the sole structure 104 may be characterized as having portions within the forefoot region 108, the midfoot region 110, the heel region 112, and/or along the medial side 118 and/or the lateral side 116. Therefore, the upper 102 and the sole structure 104, and/or individual portions of the upper 102 and the sole structure 104, may include portions thereof that are disposed within the forefoot region 108, the midfoot region 110, the heel region 112, and/or along the medial side 118 and/or the lateral side 116.

[0033]Still referring to FIGS. 2 and 3, the forefoot region 108, the midfoot region 110, the heel region 112, the medial side 118, and the lateral side 116 are shown in detail. The forefoot region 108 extends from a toe end 140 to a widest portion 142 of the article of footwear 100. The widest portion 142 is defined or measured along a first line 144 that is perpendicular with respect to the longitudinal axis 120 that extends from a distal portion of the toe end 140 to a distal portion of a heel end 146, which is opposite the toe end 140. The midfoot region 110 extends from the widest portion 142 to a thinnest portion 148 of the article of footwear 100. The thinnest portion 148 of the article of footwear 100 is defined as the thinnest portion of the article of footwear 100 measured across a second line 150 that is perpendicular with respect to the longitudinal axis 120. The heel region 112 extends from the thinnest portion 148 to the heel end 146 of the article of footwear 100.

[0034]It should be understood that numerous modifications may be apparent to those skilled in the art in view of the foregoing description, and individual components thereof, may be incorporated into numerous articles of footwear. Accordingly, aspects of the article of footwear 100 and components thereof, may be described with reference to general areas or portions of the article of footwear 100, with an understanding the boundaries of the forefoot region 108, the midfoot region 110, the heel region 112, the medial side 118, and/or the lateral side 116 as described herein may vary between articles of footwear. However, aspects of the article of footwear 100 and individual components thereof, may also be described with reference to exact areas or portions of the article of footwear 100 and the scope of the appended claims herein may incorporate the limitations associated with these boundaries of the forefoot region 108, the midfoot region 110, the heel region 112, the medial side 118, and/or the lateral side 116 discussed herein.

[0035]Still referring to FIGS. 2 and 3, the medial side 118 begins at the distal, toe end 140 and bows outward along an inner side of the article of footwear 100 along the forefoot region 108 toward the midfoot region 110. The medial side 118 reaches the first line 144, at which point the medial side 118 bows inward, toward the central, longitudinal axis 120. The medial side 118 extends from the first line 144, i.e., the widest portion 142, toward the second line 150, i.e., the thinnest portion 148, at which point the medial side 118 enters into the midfoot region 110, i.e., upon crossing the first line 144. Once reaching the second line 150, the medial side 118 bows outward, away from the longitudinal, central axis 120, at which point the medial side 118 extends into the heel region 112, i.e., upon crossing the second line 150. The medial side 118 then bows outward and then inward toward the heel end 146, and terminates at a point where the medial side 118 meets the longitudinal, central axis 120.

[0036]The lateral side 116 also begins at the distal, toe end 140 and bows outward along an outer side of the article of footwear 100 along the forefoot region 108 toward the midfoot region 110. The lateral side 116 reaches the first line 144, at which point the lateral side 116 bows inward, toward the longitudinal, central axis 120. The lateral side 116 extends from the first line 144, i.e., the widest portion 142, toward the second line 150, i.e., the thinnest portion 148, at which point the lateral side 116 enters into the midfoot region 110, i.e., upon crossing the first line 144. Once reaching the second line 150, the lateral side 116 bows outward, away from the longitudinal, central axis 120, at which point the lateral side 116 extends into the heel region 112, i.e., upon crossing the second line 150. The lateral side 116 then bows outward and then inward toward the heel end 146, and terminates at a point where the lateral side 116 meets the longitudinal, central axis 120.

[0037]Still referring to FIGS. 2 and 3, the upper 102 extends along the lateral side 116 and the medial side 118, and across the forefoot region 108, the midfoot region 110, and the heel region 112 to house and enclose a foot of a user. When fully assembled, the upper 102 also includes an interior surface 162 and an exterior surface 164. The interior surface 162 faces inward and generally defines the interior cavity 106, and the exterior surface 164 of the upper 102 faces outward and generally defines an outer perimeter or boundary of the upper 102. The upper 102 also includes an opening 166 that is at least partially located in the heel region 112 of the article of footwear 100, which provides access to the interior cavity 106 and through which a foot may be inserted and removed. In some embodiments, the upper 102 may also include an instep region 168 that extends from the opening 166 in the heel region 112 over an area corresponding to an instep of a foot to an area proximate the forefoot region 108. The instep region 168 may comprise an area similar to where a tongue 170 of the present embodiment is disposed. In some embodiments, the upper 102 does not include the tongue 170, i.e., the upper 102 is tongueless.

[0038]In the illustrated embodiment, the sole structure 104 includes a midsole 172 and an outsole 174 (see FIG. 1). The outsole 174 may define a bottom end or bottom surface 176 of the sole structure 104 across the heel region 112, the midfoot region 110, and the forefoot region 108. Further, the outsole 174 may be a ground-engaging portion or include a ground-engaging surface of the sole structure 104 and may be opposite of the insole thereof. As illustrated in FIG. 1, the bottom surface 176 of the outsole 174 may include a tread pattern 178 that can include a variety of shapes and configurations. The outsole 174 may be formed from one or more materials to impart durability, wear-resistance, abrasion resistance, or traction to the sole structure 104. In some embodiments, the outsole 174 may be formed from any kind of elastomer material, e.g., rubber, including thermoset elastomers or thermoplastic elastomers, or a thermoplastic material, e.g., thermoplastic polyurethane (TPU). In some embodiments, the outsole 174 may define a shore A hardness up to 95. In addition, the outsole 174 may be manufactured by a process involving injection molding, vulcanization, printing layer by layer, i.e., additive manufacturing systems or methods, and the like.

[0039]Still referring to FIG. 1, the midsole 172 may be individually constructed from a thermoplastic material, such as polyurethane (PU), for example, and/or an ethylene-vinyl acetate (EVA), copolymers thereof, or a similar type of material. In other embodiments, the midsole 172 may be an EVA-Solid-Sponge (“ESS”) material, an EVA foam (e.g., PUMA® ProFoam Lite™, IGNITE Foam), polyurethane, polyether, an olefin block copolymer, organosheets, a thermoplastic material (e.g., a thermoplastic polyurethane, a thermoplastic elastomer, a thermoplastic polyolefin, etc.), or a supercritical foam. The midsole 172 may be a single polymeric material or may be a blend of materials, such as an EVA copolymer, a thermoplastic polyurethane, a polyether block amide (PEBA) copolymer, and/or an olefin block copolymer. One example of a PEBA material is PEBAX®. In some embodiments, the midsole 172 is manufactured by a process involving injection molding, vulcanization, printing layer by layer, i.e., additive manufacturing systems or methods, and the like.

[0040]In embodiments where the midsole 172 is formed from a supercritical foaming process, the supercritical foam may comprise micropore foams or particle foams, such as a TPU, EVA, PEBAX®, or mixtures thereof, manufactured using a process that is performed within an autoclave, an injection molding apparatus, or any sufficiently heated/pressurized container that can process the mixing of a supercritical fluid (e.g., CO₂, N₂, or mixtures thereof) with a material (e.g., TPU, EVA, polyolefin elastomer, or mixtures thereof) that is preferably molten. During an exemplary process, a solution of supercritical fluid and molten material is pumped into a pressurized container, after which the pressure within the container is released, such that the molecules of the supercritical fluid rapidly convert to gas to form small pockets within the material and cause the material to expand into a foam. In further embodiments, the midsole 172 may be formed using alternative methods known in the art, including the use of an expansion press, an injection machine, a pellet expansion process, a cold foaming process, a compression molding technique, die cutting, or any combination thereof. For example, the midsole 172 may be formed using a process that involves an initial foaming step in which supercritical gas is used to foam a material and then compression molded or die cut to a particular shape.

[0041]Examples of visual display technologies may be optoelectronic displays that include, but are not limited to: electrochemical transistor based visual display technologies, LCD panel technologies, LED screen technologies, fiber optic technologies, electrochromographic materials (including photonic lattices or crystals), electronic paper technologies (including electrophoretic ink technologies, electrowetting technologies and electrofluidic technologies), electroluminescent strips, as well as other visual display technologies. In some embodiments, visual display portions can be associated with electronic paper technologies using electrophoretic ink. Several examples are disclosed in U.S. Pat. Nos. 7,535,624; 7,528,822; 7,420,549; 7,167,155; 7,201,952; 6,987,603; 6,922,276; 6,864,875, 6,639,578, each of which is hereby incorporated by reference in their entirety.

[0042]In some embodiments, visual display portions can be associated with flexible electronic paper technologies using electrophoretic ink which retain a visual display after removal of applied power. Examples are disclosed in any of the following: U.S. Pat. Nos. 8,502,788, 7,944,597, 7,675,672, 7,195,170, and 6,936,190, the entirety of each being hereby incorporated by reference. In some embodiments, visual display portions can be associated with electronically controllable visually dynamic textiles or flexible substrates as are disclosed in U.S. Patent Publication Number 2003/0224155, the entirety of which is hereby incorporated by reference.

[0043]Turning to FIG. 4, an embodiment of an article of footwear 200 includes an upper 204 attached to a sole structure 208, a display device 212 attached to the upper 204, and a circuit 216. In this embodiment, elements that are shared with—i.e., that are structurally and/or functionally identical to—elements present in the first embodiment of the footwear 100 are represented by equivalent reference numerals. The circuit 216 comprises a control unit 220 and a power source 224 that are configured to communicate with the display device 212 via conductive leads 228. In some embodiments, the circuit 216 is disposed or retained within the sole structure 208. For example, the power source 224 may be embedded within or disposed between layers of the sole structure 208. In some embodiments, the control unit 220 is embedded within or disposed between layers of the sole structure 208. In some embodiments, the conductive leads 228 may extend along the sole structure 208, between and through the layers of the sole structure 208, and into contact with or along the upper 204. Further, the display device 212 may include an electrical contact 232 disposed along a periphery 236 of the upper 204, e.g., an edge or boundary where the upper 204 and the sole structure 208 are joined together. In some embodiments, the entire periphery 236 functions as the electrical contact 232. In some embodiments, a portion or discrete segments of the periphery function as the electrical contact 232. In some embodiments, the electrical contact 232 is attached between the upper 204 and the sole structure 208, separately and spaced apart from the periphery 236.

[0044]The power source 224 may be a storage cell, such as, e.g., a battery or a capacitor. The power source 224 may be rechargeable via a mechanical connection port (not shown) that is accessible externally on the sole structure 208, such as, e.g., a USB or USB-C, Apple Lightning®, or any other suitable interface. In some embodiments, the power source 224 may be rechargeable wirelessly, without the use of any port, by proximity to a wireless charging pad or mat. The power source 224 may be a Nickel-Cadmium (NiCd), Nickel-Metal Hydride (NiMH), Lithium Ion (Li-ion), lead acid, or the like. In some embodiments, the power source 224 includes a piezoelectric device that is configured to convert kinetic energy into electrical energy for powering or controlling the display device 212. In some embodiments, the power source 224 includes a plurality of storage cells and/or piezoelectric devices. In some embodiments, the power source 224 is removably attached to the sole structure 208 of the footwear 200, such that the power source 224 may be removed, e.g., through an opening in the sole structure 208 or the upper 204. In some embodiments, the power source 224 is electrically connected to a charging port that is selectively covered by a tab located at a heel end of the footwear 200.

[0045]The control unit 220 is provided to control the display device 212. For example, the control unit 220 may be configured to send signals in the form of current changes and/or voltage changes to the display device 212. In some embodiments, the control unit 220 is a switch or a switch matrix that can selectively intervene between the power source 224 and the display device 212. In some embodiments, the control unit 220 is configured for binary operation, such that the display device 212 may either receive power or may not receive power from the power source 224. In some embodiments, the control unit 220 is capable of modulation, such that the display device 212 may receive a full amount of power, a minimum amount of power, and one or more intermediate levels of power therebetween from the power source 224. In some embodiments, the control unit 220 is configured for selective control of portions of the display device 212, such that portions of the display device 212 may receive power while other portions of the display device 212 may not receive power. To that end, the control unit 220 may be a central processing unit (CPU), or a printed circuit board (PCB) or a flexible circuit board, or the like. In some embodiments, a plurality of control units are provided for selective control of the display device 212 or portions of the display device 212.

[0046]The control unit 220 may receive inputs from at least one input device 240. The input device 240 may be any suitable type of sensor or actuator for communicating with the control unit 220 to selectively control the display device 212. In some embodiments, the input device 240 is a touch-activated sensor along which a user's finger can slide or tap to control the display device 212. Touch-activated sensors of various types are contemplated, including a capacitive touch slide sensor, a capacitive touch tap sensor, a resistive touch slide sensor, or a resistive touch tap sensor. In some embodiments, the input device 240 may be a vibration sensor that is configured to detect vibration frequencies caused by kinetic motion of the footwear 200 or applied to the footwear 200. Vibration sensors of various types are contemplated, including strain gauges, accelerometers, gyroscopes, or the like. In some embodiments, the input device 240 is a microphone, such that sound waves of various frequencies may be detected for control of the display device 212 via the control unit 220. For example, the input device 240 may be capable of voice-activation by which the user can dictate “on” or “off” for controlling the display device 212. In some embodiments, the input device 240 is not provided on the footwear 200 and, instead, the input device 240 is a user's smartphone, tablet, laptop, smartwatch or wearable electronic, special-purpose computer or device, or the like. For example, the user may access a mobile application via a smartphone for communication over a wireless communication network with the control unit 220. In such embodiments, the control unit 220 includes a wireless transceiver operating over a Wi-Fi connection, a Bluetooth® connection, an RFID or NFC connection, or the like. The user may control the display device 212 on the footwear 200 wirelessly via the mobile application on the smartphone.

[0047]The display device 212 may be provided as part of the upper 204 in various configurations. In some embodiments, the display device 212 may be provided as a discrete panel or segment that is applied to a portion of the upper 204. In some embodiments, the display device 212 is permanently attached to the upper 204 by, e.g., adhesive, fastening, welding, knitting or weaving, molding, or the like. In some embodiments, the display device 212 is removably attached to the upper 204 by, e.g., fasteners, magnetic elements, adhesive, or the like.

[0048]The display device 212 may include an optoelectronic display technology, such as, e.g., electrophoretic ink. That is, the display device 212 may incorporate electronic paper technologies, including flexible electronic paper technologies, that provide an optoelectronic display while maintaining the comfort, durability, and lightweight properties of the upper 204. In some embodiments, the display device 212 includes a substrate in the form of a thin film transistor (TFT), which is preferably a flexible TFT, which is a field-effect transistor configured to function as a switch for portions or segments of the display device 212. In some embodiments, display device 212 may comprise rigid portions or segments that include a rigid TFT. In some embodiments, the substrate is comprised of an organic TFT made from organic semiconducting compounds. In a preferred embodiment, the display device 212 is passively operated, in that the display device 212 only draws power when changing a visual characteristic, e.g., color, and no power is drawn to sustain the visual characteristic on the display device 212. In some embodiments, the visual characteristic is a color, a luminous intensity, a resolution, a gloss, and the like. In some embodiments, the display device 212 is configured to display a static image, animation, text, symbols, logos, or the like. In some embodiments, the display device 212 is provided with a surface treatment, such as, e.g., an anti-glare treatment or coating, a moisture barrier, a scratch barrier or other protective coatings, and the like.

[0049]As illustrated in FIG. 4, the display device 212 may be disposed along the entire upper 204 from the toe end 140 to the heel end 146 and across the medial side 118 to the lateral side (see FIG. 2). In some embodiments, the display device 212 is disposed within the forefoot region 108, the midfoot region 110, and the heel region 112 and along one of the medial side 118 or the lateral side 116. In some embodiments, the display device 212 is disposed within one of the forefoot region 108, the midfoot region 110, or the heel region 112. In some embodiments, the display device 212 is disposed within two of the forefoot region 108, the midfoot region 110, or the heel region 112. For example, the display device 212 may extend continuously from the forefoot region 108 to the midfoot region 110. In some embodiments, the display device 212 at least partially conceals an exterior layer of the upper 204.

[0050]With reference to FIG. 5, another embodiment of an article of footwear 300 includes an upper 304 that is attached to a sole structure 308, a first display device 312 that is disposed on the upper 304 within the forefoot region 108 of the footwear 300, and a second display device 316 that is disposed on the upper 304 within the heel region 112 of the footwear 300. Further, the footwear 300 includes a circuit 320 comprising a power source 324, a control unit 328, and conductive leads 332 extending therebetween. It will be appreciated that the power source 324 may be similar to the power source 224 of the footwear 200 of FIG. 4. In this embodiment, elements that are shared with—i.e., that are structurally and/or functionally identical to—elements present in the first embodiment of the footwear 100 are represented by equivalent reference numerals. Further, the control unit 328 may be similar to the control unit 220 of the footwear 200 of FIG. 4. The first display device 312 is electrically coupled to a first electrical contact 336 and the second display device 316 is electrically coupled to a second electrical contact 340. In the illustrated embodiment, the first electrical contact 336 is disposed along a periphery 344 in the forefoot region 108 and the second electrical contact 340 is disposed along the periphery 344 within the heel region 112. In particular, the second electrical contact 340 and the second display device 316 are disposed on the heel end 146 of the footwear 300.

[0051]The first display device 312 defines a first surface area SA1 and the second display device 316 defines a second surface area SA2. In some embodiments, the first surface area SA1 of the first display device 312 is greater than the second surface area SA2 of the second display device 316. It will be appreciated that, often, surface area is proportional to power drawn for operation, i.e., to display light of any type and intensity, such that a greater surface area requires a greater amount of power. Accordingly, the first display device 312 may draw a greater amount of power than the second display device 316. It is contemplated that the first surface area SA1 of the first display device 312 may be smaller than the second surface area SA2 of the second display device 316, such that the first display device 312 draws less power than the second display device 316.

[0052]The circuit 320 may further comprise an input device, such as the input device 240 of the footwear 200 of FIG. 4. It is contemplated that the first display device 312 and the second display device 316 may be selectively controlled or operated in response to a single input device. Alternatively, first and second input devices may be provided for the first display device 312 and the second display device 316, respectively. In some embodiments, the first electrical contact 336 is in direct communication with the control unit 328, such that the control unit 328 is capable of sending signals to the first electrical contact in the form of a current change or voltage change. In this way, the control unit 328 may be configured to control the first display device 312. In some embodiments, the second electrical contact 340 is directly connected to the power source 324, such that the second electrical contact 340 receives power from the power source 324 without intervention from the control unit 328. Accordingly, the second display device 316 may be powered or controlled independently of the first display device 312. In some instances, the control unit 328 includes multiple control units dedicated to each display device. In some embodiments, the first display device 312 and the second display device 316 are both connected to the control unit 328, such that the control unit 328 is configured to simultaneously operate both the first and second display devices 312, 316.

[0053]The first display device 312 and second display device 316 may include an optoelectronic display technology, such as, e.g., electrophoretic ink. That is, the first display device 312 and the second display device 316 may incorporate electronic paper technologies, including flexible electronic paper technologies, that provide optoelectronic displays while maintaining the comfort, durability, and lightweight properties of the upper 304. In some embodiments, the first display device 312 and the second display device 316 include a substrate in the form of a thin film transistor (TFT), which is preferably a flexible TFT, which is a field-effect transistor configured to function as a switch for each of the first display device 312 and the second display device 316. In some embodiments, the substrate may be a rigid TFT. In some embodiments, the substrate is comprised of an organic TFT made from organic semiconducting compounds. In a preferred embodiment, the first display device 312 and the second display device 316 are passively operated, in that the first display device 312 and the second display device 316 only draw power when changing a visual characteristic, e.g., color, and no power is drawn to sustain the visual characteristic on the first display device 312 and the second display device 316. In some embodiments, the visual characteristic is a color, a luminous intensity, a resolution, a gloss, and the like. In some embodiments, the first display device 312 and the second display device 316 are configured to display a static image, animation, text, symbols, logos, or the like. In some embodiments, the first display device 312 and the second display device 316 are provided with a surface treatment, such as, e.g., an anti-glare treatment or coating, a moisture barrier, a scratch barrier or other protective coatings, and the like.

[0054]Referring to FIG. 6, an embodiment of an article of footwear 400 includes an upper 404 attached to a sole structure 408, a cable fastening system 412, a wrap 416 applied to the upper 404 and connected to the cable fastening system 412, and a circuit 420 in communication with the wrap 416. In this embodiment, elements that are shared with—i.e., that are structurally and/or functionally identical to-elements present in the first embodiment of the footwear 100 are represented by equivalent reference numerals. The wrap 416 may include a display device 424 comprising an optoelectronic display, such as electrophoretic ink. Further, the upper 404 may include a base layer 428 with peripheral edges 432 that are attached to the sole structure 408 of the footwear 400. In the illustrated embodiment, the wrap 416 is disposed across the forefoot region 108 between the medial side 118 and the lateral side 116 of the footwear 400. In some embodiments, the wrap 416 is attached to the sole structure 408, such that the wrap 416 is separated from and encloses or covers a portion of the upper 404. In other embodiments, the wrap 416 is provided as part of the upper 404 and encloses or covers a portion of the upper 404. In some embodiments, the wrap 416 is removable and/or capable of being relocated along the footwear 400. In some embodiments, the wrap 416 is permanently fastened to or integrated with the footwear 400. In some embodiments, the wrap 416 extends continuously along the medial side 118 from the forefoot region 108 to the heel region 112. In other embodiments, the wrap 416 extends discretely within the forefoot region 108, the heel region 112, or the midfoot region 110, or combinations thereof. The wrap 416 can be interrupted by portions of the sole structure 408 and/or design elements, logos, or the like. In some embodiments, the wrap 416 extends across the heel end 146 of the footwear 400. In some embodiments, the wrap 416 extends along or across the toe end 140 of the footwear 400. In some embodiments, the cable fastening system 412 is configured to provide an electrical signal to the wrap 416. The cable fastening system 412 is configured to tighten the article of footwear 400. In some embodiments, the cable fastening system 412 includes at least one cable 434 including a layer, fiber, or core (not shown) made of electrically conductive material for operatively coupling the wrap 416 and the circuit 420.

[0055]In some embodiments, the display device 424 of the wrap 416 includes a plurality of panels 436a, 436b, 436c, 436d, 436e connected to one another along a substrate. The panels 436a, 436b, 436c, 436d, 436e may each incorporate electronic paper technologies, including flexible electronic paper technologies, that provide an optoelectronic display while maintaining the comfort, durability, and lightweight properties of the upper 404. In some embodiments, the substrate may be a thin film transistor (TFT), which is preferably a flexible TFT, which is a field-effect transistor configured to function as a switch for each of the panels 436a, 436b, 436c, 436d, 436e. In some embodiments, display device 424 may comprise rigid panels that include a rigid TFT. In some embodiments, the substrate is comprised of an organic TFT made from organic semiconducting compounds. The display device 424 is electrically connected to the circuit 420, which includes a power source 440 and a control unit 444 connected via conductive leads 448. It will be appreciated that the power source 440 may be similar to the power source 224 of the footwear 200 of FIG. 4. Further, the control unit 444 may be similar to the control unit 220 of the footwear 200 of FIG. 4. In a preferred embodiment, the display device 424 is passively operated, in that the panels 436a, 436b, 436c, 436d, 436e only draw power from the power source 440 when the display device 424 changes a visual characteristic, e.g., color, and no power is drawn to sustain the visual characteristic on the display device 424. A visual characteristic of the display device is configured to change by actuation of the cable fastening system 412 to tighten the footwear 200.

[0056]With reference to FIG. 6, the panels 436a, 436b, 436c, 436d, 436e each define a surface area that is different from one another, such that the power draw for each of the panels 436a, 436b, 436c, 436d, 436e is different from one another. Alternatively, the panels 436a, 436b, 436c, 436d, 436e may each define identical surface areas, such that the power draw for each of the panels 436a, 436b, 436c, 436d, 436e is identical to one another. In a preferred embodiment, the panels 436a, 436b, 436c, 436d, 436e are passively operated, in that the display device 424 only draws power when changing a visual characteristic, e.g., color, and no power is drawn to sustain the visual characteristic on the display device 424. In some embodiments, the visual characteristic is a color, a luminous intensity, a resolution, a gloss, and the like. In some embodiments, the panels 436a, 436b, 436c, 436d, 436e are configured to display a static image, animation, text, symbols, logos, or the like. In some embodiments, the panels 436a, 436b, 436c, 436d, 436e are provided with a surface treatment, such as, e.g., an anti-glare treatment or coating, a moisture barrier, a scratch barrier or other protective coatings, and the like. The circuit 420 may further comprise an input device, such as the input device 240 of the footwear 200 of FIG. 4. It is contemplated that each panel 436a, 436b, 436c, 436d, 436e may be selectively controlled or operated in response to a single input device. Alternatively, individual input devices may be provided for panels 436a, 436b, 436c, 436d, 436e, respectively.

[0057]In other embodiments, other configurations are possible. For example, certain features and combinations of features that are presented with respect to particular embodiments in the discussion above can be utilized in other embodiments and in other combinations, as appropriate. Further, any of the embodiments described herein may be modified to include any of the structures or methodologies disclosed in connection with other embodiments. Additionally, the present disclosure is not limited to articles of footwear of the type specifically shown. Still further, aspects of the articles of footwear of any of the embodiments disclosed herein may be modified to work with any type of footwear, apparel, or other athletic equipment.

[0058]As noted previously, it will be appreciated by those skilled in the art that while the invention has been described above in connection with particular embodiments and examples, the invention is not necessarily so limited, and that numerous other embodiments, examples, uses, modifications, and departures from the embodiments, examples, and uses are intended to be encompassed by the claims attached hereto. The entire disclosure of each patent and publication cited herein is incorporated by reference, as if each such patent or publication were individually incorporated by reference herein. Various features and advantages of the invention are set forth in the following claims.

INDUSTRIAL APPLICABILITY

[0059]Numerous modifications to the present invention will be apparent to those skilled in the art in view of the foregoing description. Accordingly, this description is to be construed as illustrative only and is presented for the purpose of enabling those skilled in the art to make and use the invention. The exclusive rights to all modifications which come within the scope of the appended claims are reserved.