Display device and electronic device including the same

Abstract

The invention provides a display device and an electronic device including the same. The display device includes: a display module including a folded portion and a non-folded portion; a hinge assembly including a rod rotating about a rod rotation axis, a link rotating about a link rotation axis, and a roller fixedly attached to the link and moving along the groove; and a wing plate disposed between the display module and the hinge assembly, rotating with rotation of the lever portion, and contacting the roller.

Description

TECHNICAL FIELD

[0001] The disclosure embodiments relate generally to a display device. BACKGROUND

[0002] A display device is a device that displays an image, and includes a display panel including display elements such as an organic light emitting diode (OLED) and a quantum dot electroluminescent diode (QD-EL).

[0003] Meanwhile, a mobile electronic device includes a display device that provides an image to a user. Recently, a foldable display device that can be folded and unfolded is being developed to provide a larger screen when used than when carried. SUMMARY

[0004] Embodiments provide a display device.

[0005] Embodiments provide an electronic device including a display device.

[0006] A display device according to an embodiment can include a display module including a folding portion and at least one non-folding portion disposed adjacent to the folding portion, a first hinge assembly disposed under the display module and including a first lever, a first link, and a first roller, and a first wing plate disposed between the display module and the first hinge assembly, wherein the first lever overlaps the folding portion and rotates about a first lever rotation axis, the first link rotates about a first link rotation axis, and the first roller is fixedly attached to the first link and moves along a first groove, and the first wing plate overlaps the folding portion, rotates as the first lever rotates, and contacts the first roller.

[0007] In an embodiment, the folding portion can include a curved portion that can be inwardly folded in a first folded state after an unfolded state, and a first bent portion disposed between the curved portion and the non-folding portion, and the first bent portion can be outwardly folded in a second folded state after the first folded state.

[0008] In an embodiment, the first wing plate can be divided into a first portion disposed adjacent to the non-folding portion and a second portion connected to the first portion, having a thickness smaller than that of the first portion, and disposed adjacent to the first lever rotation axis. The first roller can contact the first portion in the first folded state.

[0009] In an embodiment, the first roller can support the first portion in the first folded state, and the display module overlapping the first portion can not be folded with the first portion supported by the first roller.

[0010] In one embodiment, the first roller may not support the first portion in the second folded state, and the display module overlapping the boundary of the first portion may be folded if the first portion is not supported by the first roller.

[0011] In one embodiment, the first part may include: a lower surface that contacts the first roller; and an upper surface that is opposite to the lower surface and parallel to the lower surface.

[0012] In one embodiment, the position of the first link rotation axis may be different from the position of the first rod rotation axis, and the first link rotation axis may be located below the first rod rotation axis.

[0013] In one embodiment, the display device may further include at least one gear connecting the first rod and the first connecting rod.

[0014] In an embodiment, the gear may include a first gear and a second gear, the first gear may be connected between the second gear and the first connecting rod, and the second gear may be connected between the first gear and the first rod portion.

[0015] In an embodiment, the gear may include a first gear and a second gear, the first gear may be connected to the second gear, and the second gear may be connected between the first rod and the first connecting rod.

[0016] In one embodiment, a groove corresponding to the first roller can be formed at one end of the first connecting rod, and the first roller can be fixedly attached to the first connecting rod in the groove by means of a first roller pin.

[0017] In one embodiment, the first groove may be formed in the first rod portion.

[0018] In one embodiment, the first hinge assembly may further include: a second rod portion that rotates about a second rod portion rotation axis; a second connecting rod that rotates about a second connecting rod rotation axis; and a second roller that is fixedly attached to the second connecting rod and moves along a second groove.

[0019] In one embodiment, the first hinge assembly may further include: a third link, which rotates about the rotation axis of the first link and is opposite to the first link across the first link portion; and a third roller, which is fixedly attached to the third link and is opposite to the first roller across the first link portion.

[0020] In one embodiment, the display device may further include a second wing plate disposed between the display module and the first hinge assembly, wherein the second wing plate overlaps with the folding portion, rotates with the rotation of the second rod portion, and contacts the second roller.

[0021] In an embodiment, the display device may further include a second hinge assembly disposed below the display module, overlapping the folded portion, and having the same shape as the first hinge assembly.

[0022] In one embodiment, the folding portion may include a first folding portion and a second folding portion spaced apart from the first folding portion, and a first hinge assembly and a second hinge assembly may overlap the first folding portion.

[0023] In an embodiment, the display device may further include a third hinge assembly disposed below the display module and overlapping the second folding portion.

[0024] In one embodiment, the display module may include: a display panel; and a support member disposed below the display panel and having a hole that overlaps with the folded portion.

[0025] The electronic device according to the embodiments may include: a display device including a display module and a first hinge assembly; a power supply for supplying power to the display device; and a first wing plate disposed between the display module and the first hinge assembly. The display module may include a folding portion and at least one non-folding portion disposed adjacent to the folding portion; the first hinge assembly may be disposed below the display module and includes a first rod, a first connecting rod, and a first roller, wherein the first rod may overlap with the folding portion and rotate about a rotation axis of the first rod, the first connecting rod rotates about a rotation axis of the first connecting rod, and the first roller is fixedly attached to the first connecting rod and moves along a first groove, and the first wing plate overlaps with the folding portion, rotates with the rotation of the first rod, and contacts the first roller.

[0026] Accordingly, the display device according to embodiments of the present disclosure may include a display module, a hinge assembly, and a wing plate. The hinge assembly may include a rod, a connecting rod, and a roller. The rod is rotatable about a rod rotation axis, and the connecting rod is rotatable about a connecting rod rotation axis. The roller may be fixedly attached to the connecting rod and guided by a groove. The wing plate may be located between the display module and the hinge assembly.

[0027] The position of the rod's rotation axis can differ from the position of the connecting rod's rotation axis. Therefore, the rotation trajectory of the rod can differ from the rotation trajectory of the connecting rod. The roller can be guided by grooves and can move linearly. In other embodiments, the display device can cause different rotation trajectories for the rod and the connecting rod by using two rotation axes located at different positions. The linear movement of the roller can be caused by using the difference between the aforementioned rotation trajectories.

[0028] The wing plate may include a first part and a second part with different thicknesses, and the relatively thicker first part may be supported by rollers.

[0029] Accordingly, in the first folded state, the curved portion of the display device can be folded inwards, and the bent portion can remain unbent or folded. Therefore, no wrinkles will appear in the folded portion when the user uses the display device.

[0030] In the second folded state and the folded state following the second folded state, the bent portion can be folded inward and the bent portion can be folded outward. Therefore, the increase in the thickness of the display device can be compensated when the user carries the display device. Attached Figure Description

[0031] The accompanying drawings (including the drawings which are provided to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification) illustrate embodiments of the disclosure together with the specification.

[0032] Figure 1 and Figure 2 This is a schematic perspective view showing a display device according to an embodiment of the present disclosure.

[0033] Figure 3 It is shown Figure 1 An exploded perspective view of the display device.

[0034] Figure 4 It is shown Figure 3 A schematic perspective view of the display device.

[0035] Figure 5 It is shown that it includes Figure 3 A schematic cross-sectional view of the display module in the display device.

[0036] Figure 6 It is shown that it includes Figure 5 A schematic cross-sectional view of the display panel in the display module.

[0037] Figure 7 It is shown that it includes Figure 5 A schematic plan view of the supporting components in the display module.

[0038] Figure 8 It is shown that it includes Figure 3 An exploded perspective view of the hinge assembly in a display device.

[0039] Figure 9 , Figure 10 and Figure 11 It is shown Figure 8 A schematic diagram of the hinge assembly.

[0040] Figure 12 , Figure 13 and Figure 14 It is shown Figure 3 A schematic diagram of the display device.

[0041] Figure 15 It is shown Figure 3 A schematic diagram of the display device.

[0042] Figure 16 This is a schematic diagram illustrating a display device according to another embodiment of the present disclosure.

[0043] Figure 17 This is a schematic cross-sectional view showing a display device according to yet another embodiment of the present disclosure.

[0044] Figure 18 It is shown Figure 17 An exploded perspective view of the display device.

[0045] Figure 19 It is shown Figure 17 A schematic perspective view of the display device.

[0046] Figure 20 This is a schematic cross-sectional view showing a display device according to yet another embodiment of the present disclosure.

[0047] Figure 21 It is shown Figure 20 An exploded perspective view of the display device.

[0048] Figure 22 It is shown Figure 20 A schematic perspective view of the display device.

[0049] Figure 23 This is a schematic block diagram illustrating an electronic device according to an embodiment of the present disclosure.

[0050] Figure 24 This is a schematic diagram of an electronic device. Detailed Implementation

[0051] In the following description, numerous specific details are set forth for purposes of explanation in order to provide a thorough understanding of various embodiments or implementations of the invention. As used herein, “implementation” and “method” are interchangeable terms and are non-limiting examples of the apparatus or methods disclosed herein. However, it will be apparent, however, that various embodiments may be practiced without these specific details or with one or more equivalent arrangements. Herein, the various embodiments are not necessarily exclusive, nor do they limit this disclosure. For example, the specific shape, configuration, and characteristics of an embodiment may be used or implemented in another embodiment.

[0052] Unless otherwise specified, the embodiments shown should be understood as providing features of the invention. Therefore, unless otherwise specified, features, components, modules, layers, films, panels, regions and / or aspects (hereinafter individually or collectively referred to as “elements”) of various embodiments may be combined, separated, interchanged and / or rearranged in other ways without departing from the inventive concept.

[0053] The use of cross-sectional lines and / or shading in the accompanying drawings is generally provided to clarify the boundaries between adjacent elements. Therefore, unless otherwise stated, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for particular materials, material properties, dimensions, scale, commonalities between illustrated elements, and / or any other characteristics, properties, or characteristics of the elements. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of elements may be exaggerated for clarity and / or descriptive purposes. When embodiments can be implemented differently, a particular process sequence may be performed differently than the sequence described. For example, two consecutively described processes may be performed substantially simultaneously, or in the reverse order of their description. Moreover, the same reference numerals and / or figure marks denote the same elements.

[0054] When a component or layer is referred to as being "on" another component or layer, "connected to," or "attached to" another component or layer, it can be directly on, directly connected to, or directly attached to the other component or layer, or there may be an intervening component or layer. However, when a component or layer is referred to as being "directly on" another component or layer, "directly connected to," or "directly attached to" another component or layer, there is no intervening component or layer. Therefore, the term "connection" can refer to a physical connection, electrical connection, and / or fluid connection, with or without an intervening component. Furthermore, the X-axis, Y-axis, and Z-axis are not limited to the three axes of a Cartesian coordinate system (such as the x-axis, y-axis, and z-axis) and can be interpreted in a broader sense. For example, the X-axis, Y-axis, and Z-axis can be perpendicular to each other, or can represent different directions that are not perpendicular to each other. For the purposes of this disclosure, "at least one of A and B" can be interpreted as meaning only A, only B, or any combination of A and B. Furthermore, "at least one of X, Y, and Z" and "at least one selected from the group consisting of X, Y, and Z" can be interpreted as only X, only Y, only Z, or any combination of two or more of X, Y, and Z. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0055] Although the terms “first,” “second,” etc., may be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are used to distinguish one element from another. Therefore, without departing from the teachings of this disclosure, the first element discussed below may be referred to as the second element.

[0056] For descriptive purposes, spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side” (e.g., as in “sidewall”) may be used herein to describe the relationship between one element and another(s) as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are intended to also encompass different orientations of the device in use, operation, and / or manufacture. For example, if the device in the drawings is flipped, an element described as “below” or “under” other elements or features will consequently be oriented “above” other elements or features. Thus, the term “below” can encompass both above and below orientations. Furthermore, the device may be oriented in other ways (e.g., rotated 90 degrees or in other orientations), and therefore, the spatial relative descriptive terms used herein should be interpreted accordingly.

[0057] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when used in this specification, the terms “comprises,” “comprising,” “includes,” and / or “including” specify the presence of stated features, integrals, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms and not as terms of degree, and are therefore used to allow for inherent deviations in measurements, calculated values, and / or provided values ​​that will be recognized by those skilled in the art.

[0058] Various embodiments are described herein with reference to cross-sectional views and / or exploded views that serve as schematic diagrams of implementations and / or intermediate structures. Thus, variations in shape from those illustrated are to be expected as a result of, for example, manufacturing techniques and / or tolerances. Therefore, the embodiments disclosed herein should not necessarily be construed as limited to the shapes of the specifically shown areas, but rather to include, for example, deviations in shape due to manufacturing processes. In this way, the areas shown in the figures may be schematic in nature, and the shapes of these areas may not reflect the actual shapes of the areas of the device, and are therefore not necessarily intended to be limiting.

[0059] As is customary in the art, some embodiments are described and illustrated in the accompanying drawings for the purpose of creating functional blocks, units, and / or modules. Those skilled in the art will understand that these blocks, units, and / or modules are physically implemented by electrical circuits (or optical circuits) such as logic circuits, discrete components, microprocessors, hardwired circuits, memory elements, wiring connectors, etc., which can be formed using semiconductor-based fabrication techniques or other manufacturing techniques. Where blocks, units, and / or modules are implemented by microprocessors or other similar hardware, they can be programmed and controlled using software (e.g., microcode) to perform the various functions discussed herein, and can be selectively driven by firmware and / or software. It is also contemplated that each block, unit, and / or module can be implemented by dedicated hardware, or can be implemented as a combination of dedicated hardware for performing some functions and a processor (e.g., one or more programmable microprocessors and associated circuitry) for performing other functions. Furthermore, without departing from the scope of the inventive concept, each block, unit, and / or module in some embodiments may be physically separated into two or more interactive and discrete blocks, units, and / or modules. Furthermore, without departing from the scope of the inventive concept, some implementation blocks, units and / or modules can be physically combined into more complex blocks, units and / or modules.

[0060] The illustrative and non-limiting embodiments will be more clearly understood through the following detailed description taken in conjunction with the accompanying drawings.

[0061] The illustrative, non-limiting embodiments will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings.

[0062] Figure 1 and Figure 2 This is a schematic perspective view showing a display device according to an embodiment of the present disclosure.

[0063] refer to Figure 1 and Figure 2 The display device DD according to embodiments of the present disclosure may include at least one folded portion and at least one non-folded portion. For example, such as Figure 1 As shown, the display device DD may include a folded portion FA, a first non-folded portion NFA1, and a second non-folded portion NFA2. The second non-folded portion NFA2 may be disposed adjacent to the first non-folded portion NFA1 in the first direction D1, and the folded portion FA may be located between the first non-folded portion NFA1 and the second non-folded portion NFA2.

[0064] The folded portion FA, the first non-folded portion NFA1, and the second non-folded portion NFA2 may have display surfaces formed on a first direction D1 and a second direction D2 intersecting the first direction D1. The display device DD can display an image on a third direction D3 intersecting the first direction D1 and the second direction D2 through the display surfaces.

[0065] The folded portion FA can be repeatedly folded and unfolded. Therefore, as... Figure 1 As shown, in the case where the display device DD is implemented as a laptop computer, the user can use the display device DD by unfolding the folding portion FA at a desired angle (e.g., from 70° to 120°). When the user uses the display device DD, an image can be displayed on the first non-folding portion NFA1, the folding portion FA, and the second non-folding portion NFA2. Figure 2 As shown, the user can carry the display device DD by folding the folding part FA at a desired angle (e.g., about 0°).

[0066] In the case of conventional foldable displays, creases may appear in the folded section when the user uses the device. This can cause a feeling of disharmony for the user. Furthermore, the thickness of the foldable display may increase when carried by the user.

[0067] To compensate for these drawbacks, the display device DD of this disclosure can prevent wrinkles from appearing in the folded portion FA during use and can compensate for the increase in the thickness of the display device DD during carrying.

[0068] Figure 3 It is shown Figure 1 An exploded perspective view of the display device. Figure 4 It is shown Figure 3 A schematic perspective view of the display device.

[0069] refer to Figure 3 and Figure 4 The display device DD may include a display module DM, a first wing plate WP1, a second wing plate WP2, a first hinge assembly HA1, and a second hinge assembly HA2.

[0070] The display module DM may include a display panel and can display images.

[0071] The first wing plate WP1 can be disposed below the display module DM and can overlap with the folded portion FA in the third direction D3 (or thickness direction). For example, the first wing plate WP1 can extend in the second direction D2 and can overlap with the folded portion FA which is arranged adjacent to the first non-folded portion NFA1.

[0072] The second wing plate WP2 can be disposed below the display module DM and can overlap with the folded portion FA in the third direction D3 (or thickness direction). For example, the second wing plate WP2 can extend in the second direction D2, can be disposed adjacent to the first wing plate WP1 in the first direction D1, and can overlap with the folded portion FA disposed adjacent to the second non-folded portion NFA2.

[0073] The first hinge assembly HA1 may be disposed below the first wing WP1 and the second wing WP2. For example, the first hinge assembly HA1 may include a first lever LV1 and a second lever LV2. The first lever LV1 may correspond to the first wing WP1, and the second lever LV2 may correspond to the second wing WP2.

[0074] The second hinge assembly HA2 can be disposed below the first wing WP1 and the second wing WP2. For example, the second hinge assembly HA2 can have the same shape as the first hinge assembly HA1 and can be disposed adjacent to the first hinge assembly HA1 in the second direction D2.

[0075] The first hinge assembly HA1 and the second hinge assembly HA2 can be used as hinges to guide folding and unfolding. The first wing plate WP1 and the second wing plate WP2 can uniformly transmit the forces generated from the first hinge assembly HA1 and the second hinge assembly HA2 to the folding portion FA.

[0076] like Figure 3 and Figure 4 As shown, the display device DD may include two hinge assemblies. However, this disclosure is not limited thereto. For smooth folding, the display device DD may also include two or more hinge assemblies.

[0077] Figure 5 It is shown that it includes Figure 3 A schematic cross-sectional view of the display module in the display device. Figure 6 It is shown that it includes Figure 5 A schematic cross-sectional view of the display panel in the display module. Figure 7 It is shown that it includes Figure 5 A schematic plan view of the supporting components in the display module.

[0078] refer to Figure 5 The display module DM may include a support member SM, a first adhesive layer ADL1, a protective film PFM, a second adhesive layer ADL2, a display panel PNL, a third adhesive layer ADL3, a window WIN, and a protective layer PL.

[0079] refer to Figure 5 and Figure 7The support member SM can support the display panel PNL. The support member SM can be formed of a material with high rigidity. For example, the support member SM can include Invar alloy as an alloy of nickel (Ni) and iron (Fe), stainless steel (SUS), titanium (Ti), copper (Cu), or the like.

[0080] The hole H, which overlaps with the folded portion FA, can be confined within the support member SM. The hole H can penetrate the support member SM in the third direction D3 (or the thickness direction). Therefore, the folding characteristics of the display device DD can be improved.

[0081] For example, such as Figure 7 As shown, the hole H can extend in the second direction D2 and be arranged side by side in the first direction D1. For example, the hole H can have a long side in the second direction D2 and a short side in the first direction D1. However, the shape of the hole H is not limited to this. For example, the shape of the hole H can be appropriately set in response to the folding characteristics of the display module DM.

[0082] See again Figure 5 The first adhesive layer ADL1 can be disposed on the support member SM. The first adhesive layer ADL1 may include an adhesive material such as pressure-sensitive adhesive (PSA), optically clear adhesive (OCA), or optically clear adhesive resin (OCR). The first adhesive layer ADL1 can contact the support member SM and can adhere the support member SM to the protective film PFM.

[0083] A protective film PFM can be applied to the first adhesive layer ADL1. The protective film PFM can be formed of plastic. The protective film PFM can support the display panel PNL and absorb external impacts.

[0084] The display device DD may also include a cushioning member. For example, the cushioning member may be disposed between the display panel PNL and the support member SM, and may cushion external impacts. The cushioning member may include an air-containing and cushioning material, such as a cushioning pad or sponge. The cushioning member may include acrylic resin, polyurethane, thermoplastic polyurethane, latex, polyurethane foam, polystyrene foam, or the like.

[0085] The second adhesive layer ADL2 can be disposed on the protective film PFM. The second adhesive layer ADL2 may include an adhesive material such as pressure-sensitive adhesive (PSA), optically clear adhesive (OCA), or optically clear adhesive resin (OCR). The second adhesive layer ADL2 can contact the protective film PFM and can adhere the protective film PFM to the display panel PNL.

[0086] refer to Figure 5 and Figure 6The display panel PNL can be disposed on the second adhesive layer ADL2. The display panel PNL may include a substrate SUB, a buffer layer BFR, an active pattern ACT, a first insulating layer ILD1, a gate electrode GAT, a second insulating layer ILD2, a first connecting electrode CE1, a second connecting electrode CE2, a third insulating layer ILD3, a pixel electrode ADE, an emitter layer EL, a common electrode CTE, a pixel defining layer PDL, a first inorganic layer IL1, an organic layer OL, and a second inorganic layer IL2.

[0087] The substrate SUB can include glass, quartz, plastic, etc. For example, the substrate SUB can be a plastic substrate and can include polyimide (PI). The substrate SUB can have a structure in which at least one polyimide layer and at least one barrier layer are stacked alternately.

[0088] A buffer layer (BFR) can be disposed on the substrate (SUB). The buffer layer (BFR) can include silicon oxide, silicon nitride, or similar materials. The buffer layer (BFR) prevents impurities from diffusing into the active pattern (ACT).

[0089] An active pattern (ACT) can be disposed on the buffer layer (BFR). For example, the active pattern ACT can include silicon semiconductors, oxide semiconductors, etc. Silicon semiconductors can include amorphous silicon, polycrystalline silicon, etc. The active pattern ACT can allow current to flow or block current according to the gate signal provided to the gate electrode (GAT).

[0090] The first insulating layer ILD1 disposed on the buffer layer BFR may include an insulating material and may cover the active pattern ACT. For example, the first insulating layer ILD1 may include silicon oxide, silicon nitride, titanium oxide, tantalum oxide, or the like. The first insulating layer ILD1 can electrically insulate the active pattern ACT and the gate electrode GAT.

[0091] The gate electrode GAT disposed on the first insulating layer ILD1 may comprise a metal, an alloy, a conductive metal oxide, or the like. For example, the gate electrode GAT may comprise silver (Ag), a silver-containing alloy, molybdenum (Mo), a molybdenum-containing alloy, aluminum (Al), an aluminum-containing alloy, aluminum nitride (AlN), tungsten (W), tungsten nitride (WN), copper (Cu), nickel (Ni), chromium (Cr), chromium nitride (CrN), titanium (Ti), tantalum (Ta), platinum (Pt), scandium (Sc), indium tin oxide (ITO), indium zinc oxide (IZO), or the like.

[0092] The second insulating layer ILD2 disposed on the first insulating layer ILD1 may include an insulating material and may cover the gate electrode GAT. For example, the second insulating layer ILD2 may include silicon oxide, silicon nitride, titanium oxide, tantalum oxide, or the like. The second insulating layer ILD2 may electrically insulate the gate electrode GAT from the first connection electrode CE1 and from the second connection electrode CE2.

[0093] The first connecting electrode CE1 and the second connecting electrode CE2 can be disposed on the second insulating layer ILD2 and can be electrically connected to the active pattern ACT.

[0094] The first connecting electrode CE1 and the second connecting electrode CE2 may comprise metals, alloys, conductive metal oxides, or the like. For example, the first connecting electrode CE1 and the second connecting electrode CE2 may comprise silver (Ag), silver-containing alloys, molybdenum (Mo), molybdenum-containing alloys, aluminum (Al), aluminum-containing alloys, aluminum nitride (AlN), tungsten (W), tungsten nitride (WN), copper (Cu), nickel (Ni), chromium (Cr), chromium nitride (CrN), titanium (Ti), tantalum (Ta), platinum (Pt), scandium (Sc), indium tin oxide (ITO), indium zinc oxide (IZO), or the like.

[0095] A third insulating layer ILD3 disposed on the second insulating layer ILD2 may cover the first connecting electrode CE1 and the second connecting electrode CE2, may comprise an organic insulating material, and may have a substantially flat upper surface. For example, the third insulating layer ILD3 may comprise photoresist, polyacrylic resin, polyimide resin, acrylic resin, or the like.

[0096] The pixel electrode ADE can be disposed on the third insulating layer ILD3 and can be electrically connected to the second connection electrode CE2. The pixel electrode ADE can receive a first voltage from the second connection electrode CE2.

[0097] Pixel electrode ADE can include metals, alloys, conductive metal oxides, or the like. For example, pixel electrode ADE can include silver (Ag), silver-containing alloys, molybdenum (Mo), molybdenum-containing alloys, aluminum (Al), aluminum-containing alloys, aluminum nitride (AlN), tungsten (W), tungsten nitride (WN), copper (Cu), nickel (Ni), chromium (Cr), chromium nitride (CrN), titanium (Ti), tantalum (Ta), platinum (Pt), scandium (Sc), indium tin oxide (ITO), indium zinc oxide (IZO), or the like.

[0098] The pixel defining layer (PDL) can be disposed on the third insulating layer (ILD3), and an opening exposing the upper surface of the pixel electrode (ADE) can be formed in the pixel defining layer (PDL). For example, the pixel defining layer (PDL) can include organic materials such as polyimide-based resins (e.g., photosensitive polyimide-based resins (PSPI)), photoresists, polyacrylic acid-based resins, and acrylic resins, or inorganic materials such as silicon oxides and silicon nitrides.

[0099] The emitter layer (EL) can be disposed on the pixel electrode (ADE). The emitter layer (EL) can have a multilayer structure including an organic light-emitting layer, a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer.

[0100] The common electrode CTE can be disposed on the emitter layer EL and can provide a second voltage. The common electrode CTE can include metals, alloys, conductive metal oxides, or the like. For example, the common electrode CTE can include silver (Ag), silver-containing alloys, molybdenum (Mo), molybdenum-containing alloys, aluminum (Al), aluminum-containing alloys, aluminum nitride (AlN), tungsten (W), tungsten nitride (WN), copper (Cu), nickel (Ni), chromium (Cr), chromium nitride (CrN), titanium (Ti), tantalum (Ta), platinum (Pt), scandium (Sc), indium tin oxide (ITO), indium zinc oxide (IZO), or the like.

[0101] The emitter layer EL can generate light through the voltage difference between the first voltage and the second voltage. Therefore, the pixel electrode ADE, the emitter layer EL, and the common electrode CTE can be defined as light-emitting diodes.

[0102] A thin-film encapsulation layer can be disposed on the common electrode CTE. The thin-film encapsulation layer can prevent moisture and oxygen from penetrating from the outside. For example, the thin-film encapsulation layer can have a structure in which a first inorganic layer IL1, an organic layer OL, and a second inorganic layer IL2 are stacked alternately.

[0103] See again Figure 5 The third adhesive layer ADL3 can be disposed on the display panel PNL. The third adhesive layer ADL3 may include adhesive materials such as pressure-sensitive adhesive (PSA), optically clear adhesive (OCA), or optically clear adhesive resin (OCR). The third adhesive layer ADL3 can contact the display panel PNL and can adhere the display panel PNL to the window WIN.

[0104] The window (WIN) can be placed on the third adhesive layer (ADL3) and the display panel (PNL). The window protects the display panel (PNL). For example, the window can include colorless polyimide, ultra-thin tempered glass (UTG), polyethylene terephthalate (PET), polyimide (PI), polyethersulfone (PS), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyphenylene sulfide (PPS), polycarbonate (PC), etc.

[0105] A protective layer (PL) can be applied to the window (WIN). The protective layer (PL) protects the window. The protective layer (PL) can include a plastic film and a hard coating. For example, the plastic film can include colorless polyimide, polyethylene terephthalate (PET), polyimide (PI), polyethersulfone (PS), polyacrylate (PAR), polyetherimide (PEI), polyethylene naphthalate (PEN), polyphenylene sulfide (PPS), polycarbonate (PC), or similar materials. The surface of the protective layer (PL) can be treated with an anti-fingerprint coating.

[0106] Figure 8 It is shown that it includes Figure 3 An exploded perspective view of the hinge assembly in a display device. Figure 9 , Figure 10 and Figure 11 It is shown Figure 8 A schematic diagram of the hinge assembly. Figure 12 , Figure 13 and Figure 14 It is shown Figure 3 A schematic diagram of the display device. Figure 15 It is shown Figure 3 A schematic diagram of the display device.

[0107] refer to Figure 8 The first hinge assembly HA1 may include a first rod portion LV1, a bracket BRC, a first connecting rod LK1, a first connecting portion CAM1, a first spring SP1, a second spring SP2, a third spring SP3, a fourth spring SP4, a first gear GR1, a second gear GR2, a third gear GR3, a fourth gear GR4, a first roller RL1, a first roller pin RP1, a second rod portion LV2, a second connecting rod LK2, a second roller RL2, a second roller pin RP2, a third connecting rod LK3, a second connecting portion CAM2, a fifth spring SP5, a sixth spring SP6, a seventh spring SP7, an eighth spring SP8, a fifth gear GR5, a sixth gear GR6, a seventh gear GR7, an eighth gear GR8, a third roller RL3, a fourth connecting rod LK4, and a fourth roller RL4.

[0108] The second hinge assembly HA2 may have a structure that is substantially the same as that of the first hinge assembly HA1.

[0109] The first link LV1 may have a body and a protrusion. For example, a first groove SL1 may be formed in the body of the first link LV1, and the protrusion may be connected to the bracket BRC.

[0110] The bracket BRC can connect the first rod LV1 to the first link LK1. For example, the bracket BRC can be connected to the first link LK1 via the first spring SP1, the second spring SP2, the third spring SP3 and the fourth spring SP4, the first connecting part CAM1, and the first gear GR1, the second gear GR2, the third gear GR3 and the fourth gear GR4.

[0111] The first link LK1 can be connected to the first rod LV1 via the first connecting part CAM1, the first spring SP1, the second spring SP2, the third spring SP3 and the fourth spring SP4, and the bracket BRC.

[0112] For example, a groove corresponding to the first roller RL1 can be formed at one end of the first connecting rod LK1, and a groove corresponding to the first gear GR1 can be formed at the other end of the first connecting rod LK1. The first connecting rod LK1 can rotate together with the first rod portion LV1 via the first gear GR1, the second gear GR2, the third gear GR3, and the fourth gear GR4.

[0113] The first connecting part CAM1 can be located between the first rod LV1 and the first connecting rod LK1, and can connect the first rod LV1 and the first connecting rod LK1.

[0114] The first spring SP1, the second spring SP2, the third spring SP3, and the fourth spring SP4 can be disposed between the bracket BRC and the first connecting part CAM1, and the bracket BRC can be connected to the first connecting part CAM1.

[0115] The first gear GR1, the second gear GR2, the third gear GR3, and the fourth gear GR4 can be connected to the first connecting rod LK1. For example, the first gear GR1, the second gear GR2, the third gear GR3, and the fourth gear GR4 can be arranged parallel to each other along the first direction D1. The first gear GR1 can be connected between the first connecting rod LK1 and the second gear GR2, and the second gear GR2 can be connected between the first gear GR1 and the first rod portion LV1.

[0116] The first roller RL1 can be fixed (or fixedly attached) to the first link LK1. For example, a groove can be formed at one end of the first link LK1, and the first roller RL1 can be fixed (or fixedly attached) to the first link LK1 through the groove and the first roller pin RP1.

[0117] The first roller pin RP1 can be fixed (or fixedly attached) to the first connecting rod LK1 and can be connected to the first groove SL1. The first roller pin RP1 can move along the first groove SL1. Therefore, the first roller RL1 connected to the first roller pin RP1 can move along the first groove SL1.

[0118] The second rod portion LV2 may correspond to the first rod portion LV1 relative to the bracket BRC disposed between the first rod portion LV1 and the second rod portion LV2, and may have a body and a protrusion. For example, a second groove SL2 may be formed in the body of the second rod portion LV2, and the protrusion may be connected to the bracket BRC.

[0119] The bracket BRC can also connect the second rod LV2 to the second link LK2. For example, the bracket BRC can also be connected to the second link LK2 via the first spring SP1, the second spring SP2, the third spring SP3 and the fourth spring SP4, the first connecting part CAM1, and the first gear GR1, the second gear GR2, the third gear GR3 and the fourth gear GR4.

[0120] The second link LK2 can be connected to the second rod LV2 via the first connecting part CAM1, the first spring SP1, the second spring SP2, the third spring SP3 and the fourth spring SP4, and the bracket BRC.

[0121] For example, a groove corresponding to the second roller RL2 can be formed at one end of the second connecting rod LK2, and a groove corresponding to the fourth gear GR4 can be formed at the other end of the second connecting rod LK2. The second connecting rod LK2 can rotate together with the second rod portion LV2 via the first gear GR1, the second gear GR2, the third gear GR3, and the fourth gear GR4.

[0122] The first connecting part CAM1 can be set between the second rod LV2 and the second link LK2, and can also connect the second rod LV2 to the second link LK2.

[0123] The first gear GR1, the second gear GR2, the third gear GR3, and the fourth gear GR4 can also be connected to the second connecting rod LK2. For example, the first gear GR1, the second gear GR2, the third gear GR3, and the fourth gear GR4 can be arranged parallel to each other along the first direction D1. The fourth gear GR4 can be connected between the second connecting rod LK2 and the third gear GR3, and the third gear GR3 can be connected between the fourth gear GR4 and the second rod portion LV2.

[0124] The second roller RL2 can be fixed (or fixedly attached) to the second link LK2. For example, a groove can be formed at one end of the second link LK2, and the second roller RL2 can be fixed (or fixedly attached) to the second link LK2 through the groove and the second roller pin RP2.

[0125] The second roller pin RP2 can be fixed (or fixedly attached) to the second connecting rod LK2 and can be connected to the second groove SL2. The second roller pin RP2 can move along the second groove SL2. Therefore, the second roller RL2 connected to the second roller pin RP2 can move along the second groove SL2.

[0126] The first link LV1 may have a body and a protrusion. For example, a third groove may be formed in the body of the first link LV1, and the protrusion may be connected to the bracket BRC.

[0127] The bracket BRC can also connect the first link LV1 and the third link LK3. For example, the bracket BRC can also be connected to the third link LK3 via the fifth spring SP5, the sixth spring SP6, the seventh spring SP7 and the eighth spring SP8, the second connecting part CAM2, and the fifth gear GR5, the sixth gear GR6, the seventh gear GR7 and the eighth gear GR8.

[0128] The third link LK3 can be connected to the first link LV1 via the second connecting part CAM2, the fifth spring SP5, the sixth spring SP6, the seventh spring SP7 and the eighth spring SP8, and the bracket BRC.

[0129] For example, the groove corresponding to the third roller RL3 can be formed at one end of the third connecting rod LK3, and the groove corresponding to the fifth gear GR5 can be formed at the other end of the third connecting rod LK3. The third connecting rod LK3 can rotate together with the first rod LV1 via the fifth gear GR5, the sixth gear GR6, the seventh gear GR7, and the eighth gear GR8.

[0130] The second connecting part CAM2 can be set between the first link LV1 and the third link LK3, and the first link LV1 can be connected to the third link LK3.

[0131] The fifth spring SP5, the sixth spring SP6, the seventh spring SP7 and the eighth spring SP8 can be disposed between the bracket BRC and the second connecting part CAM2, and the bracket BRC can be connected to the second connecting part CAM2.

[0132] The fifth gear GR5, the sixth gear GR6, the seventh gear GR7, and the eighth gear GR8 can be connected to the third link LK3. For example, the fifth gear GR5, the sixth gear GR6, the seventh gear GR7, and the eighth gear GR8 can be arranged parallel to each other along the first direction D1. The fifth gear GR5 can be connected between the third link LK3 and the sixth gear GR6, and the sixth gear GR6 can be connected between the fifth gear GR5 and the first link LV1.

[0133] The third roller RL3 can be fixed (or fixedly attached) to the third link LK3. For example, a groove can be formed at one end of the third link LK3, and the third roller RL3 can be fixed (or fixedly attached) to the third link LK3 through the groove and the third roller pin. In addition, the third roller RL3 can be opposite the first roller RL1 across the first rod portion LV1.

[0134] The third roller pin can be fixed (or fixedly attached) to the third link LK3 and can be connected to the third groove. The third roller pin can move along the third groove. Therefore, the third roller RL3 connected to the third roller pin can move along the third groove.

[0135] The second rod portion LV2 may have a body and a protrusion. For example, a fourth groove may be formed in the body of the second rod portion LV2, and the protrusion may be connected to the support BRC.

[0136] The bracket BRC can also connect the second rod LV2 and the fourth link LK4. For example, the bracket BRC can also be connected to the fourth link LK4 via the fifth spring SP5, the sixth spring SP6, the seventh spring SP7 and the eighth spring SP8, the second connecting part CAM2, and the fifth gear GR5, the sixth gear GR6, the seventh gear GR7 and the eighth gear GR8.

[0137] The fourth link LK4 can be connected to the second link LV2 via the second connecting part CAM2, the fifth spring SP5, the sixth spring SP6, the seventh spring SP7 and the eighth spring SP8, and the bracket BRC.

[0138] For example, the groove corresponding to the fourth roller RL4 can be formed at one end of the fourth link LK4, and the groove corresponding to the eighth gear GR8 can be formed at the other end of the fourth link LK4. The fourth link LK4 can rotate together with the second rod LV2 via the fifth gear GR5, the sixth gear GR6, the seventh gear GR7, and the eighth gear GR8.

[0139] The second connecting part CAM2 can be set between the second link LV2 and the fourth link LK4, and the second link LV2 can also be connected to the fourth link LK4.

[0140] The fifth gear GR5, sixth gear GR6, seventh gear GR7, and eighth gear GR8 can also be connected to the fourth link LK4. For example, the fifth gear GR5, sixth gear GR6, seventh gear GR7, and eighth gear GR8 can be arranged parallel to each other along the first direction D1. The eighth gear GR8 can be connected between the fourth link LK4 and the seventh gear GR7, and the seventh gear GR7 can be connected between the eighth gear GR8 and the second link LV2.

[0141] The fourth roller RL4 can be fixed (or fixedly attached) to the fourth link LK4. For example, a groove can be formed at one end of the fourth link LK4, and the fourth roller RL4 can be fixed (or fixedly attached) to the fourth link LK4 through the groove and the fourth roller pin.

[0142] The fourth roller pin can be fixed (or fixedly connected) to the fourth link LK4 and can be engaged with the fourth groove. The fourth roller pin can move along the fourth groove. Therefore, the fourth roller RL4, which is engaged with the fourth roller pin, can move along the fourth groove.

[0143] The second link LK2 can be arranged adjacent to the first link LK1 in the first direction D1. The first link portion LV1 can be arranged adjacent to the first link LK1 in the second direction D2, and the third link LK3 can be arranged adjacent to the first link portion LV1 in the second direction D2. The first link portion LV1 can be connected between the first link LK1 and the third link LK3. In other words, the third link LK3 can be opposite to the first link LK1 across the first link portion LV1. In addition, the third link LK3 can rotate about the rotation axis KRX1 of the first link.

[0144] The fourth link LK4 can be arranged adjacent to the third link LK3 in the first direction D1. The second link LV2 can be arranged adjacent to the second link LK2 in the second direction D2, and the fourth link LK4 can be arranged adjacent to the second link LV2 in the second direction D2. The second link LV2 can be connected between the second link LK2 and the fourth link LK4.

[0145] refer to Figure 9 , Figure 10 and Figure 11 The first hinge assembly HA1 may have an unfolded state UFS, a first folded state FP1, a second folded state FP2, and a folded state FS. For example, the first folded state FP1 may be after the unfolded state UFS, the second folded state FP2 may be after the first folded state FP1, and the folded state FS may be after the second folded state FP2.

[0146] like Figure 9As shown, the first hinge assembly HA1 can have an extended state UFS. For example, between the first link LK1 and the second link LK2, the first hinge assembly HA1 can be extended by approximately 180°.

[0147] The first link LV1 can rotate around the first link rotation axis LRX1, and the second link LV2 can rotate around the second link rotation axis LRX2. For example, the first link rotation axis LRX1 can be located above the protrusion of the first link LV1, and can be located above the first gear GR1, the second gear GR2, the third gear GR3, and the fourth gear GR4. The second link rotation axis LRX2 can be located above the protrusion of the second link LV2, and can be located above the first gear GR1, the second gear GR2, the third gear GR3, and the fourth gear GR4.

[0148] The first link LK1 can rotate around the first link rotation axis KRX1, and the second link LK2 can rotate around the second link rotation axis KRX2. For example, when the first link LK1 is connected to the first gear GR1, the first link rotation axis KRX1 can coincide with the center of the first gear GR1. When the second link LK2 is connected to the fourth gear GR4, the second link rotation axis KRX2 can coincide with the center of the fourth gear GR4. Therefore, the first link rotation axis KRX1 can be located below the first link rotation axis LRX1, and the second link rotation axis KRX2 can be located below the second link rotation axis LRX2.

[0149] like Figure 10 As shown, the first hinge assembly HA1 may have a first folded state FP1. For example, between the first link LK1 and the second link LK2 or between the first rod LV1 and the second rod LV2, the first hinge assembly HA1 may unfold within a range of 70° to 120°.

[0150] Because the positions of the first rod rotation axis LRX1 and the first connecting rod rotation axis KRX1 are different from each other, the first roller RL1 can move along the first groove SL1. In other embodiments, when the first rod LV1 rotates along the first rod rotation axis LRX1, the first connecting rod LK1 can rotate about a first connecting rod rotation axis KRX1 that is different from the first rod rotation axis LRX1. Therefore, the first roller RL1 can perform linear movement while being guided by the first groove SL1.

[0151] Because the positions of the second rod rotation axis LRX2 and the second link rotation axis KRX2 are different from each other, the second roller RL2 can move along the second groove SL2. In other embodiments, when the second rod LV2 rotates along the second rod rotation axis LRX2, the second link LK2 can rotate about a second link rotation axis KRX2 that is different from the second rod rotation axis LRX2. Therefore, the second roller RL2 can perform linear movement guided by the second groove SL2.

[0152] like Figure 11 As shown, the first hinge assembly HA1 can have a second folded state FP2 and a folded state FS. For example, between the first link LK1 and the second link LK2, or between the first rod LV1 and the second rod LV2, the first hinge assembly HA1 can be folded within a range of 70° to 0°.

[0153] Since the positions of the first rod rotation axis LRX1 and the first connecting rod rotation axis KRX1 are different from each other, the first roller RL1 can move along the first groove SL1.

[0154] Since the positions of the second rod rotation axis LRX2 and the second connecting rod rotation axis KRX2 are different from each other, the second roller RL2 can move along the second groove SL2.

[0155] refer to Figure 12 , Figure 13 and Figure 14 The display device DD may have an unfolded state UFS, a first folded state FP1, a second folded state FP2, and a folded state FS corresponding to the first hinge assembly HA1.

[0156] like Figure 12 As shown, the display device DD can have an unfolded state UFS. For example, between the first link LK1 and the second link LK2, or between the first rod LV1 and the second rod LV2, the display device DD can be unfolded approximately 180°. Therefore, the surface of the display device DD can be substantially flat.

[0157] The folded portion FA may include a curved portion CVA, a first bent portion BA1, and a second bent portion BA2. The first bent portion BA1 may be located between the curved portion CVA and the first non-folded portion NFA1, the curved portion CVA may be located between the first bent portion BA1 and the second bent portion BA2, and the second bent portion BA2 may be located between the curved portion CVA and the second non-folded portion NFA2.

[0158] When the display device DD is in the unfolded state UFS, the curved portion CVA, the first bent portion BA1, and the second bent portion BA2 can be in the unfolded state.

[0159] The first wing plate WP1 can be divided into a first part PT1 and a second part PT2. The first part PT1 can be disposed adjacent to the first non-folding part NFA1 and can have a first thickness TH1. The second part PT2 can be connected to the first part PT1, can have a second thickness TH2, and can be disposed adjacent to the first rod rotation axis LRX1.

[0160] On the third direction D3, the first thickness TH1 can be greater than the second thickness TH2. Since the first portion PT1 has a relatively larger thickness than the second portion PT2, the first wing WP1 can contact the first roller RL1 in the first portion PT1. In other embodiments, in the deployed state UFS, the first roller RL1 can support the first portion PT1.

[0161] The first part PT1 may include a lower surface and an upper surface. The lower surface may contact the first roller RL1, and the upper surface may face away from the lower surface and be parallel to the lower surface in a first direction D1. Therefore, the display module DM supported by the upper surface can be free from bending.

[0162] The second wing plate WP2 can have a shape substantially the same as the first wing plate WP1. Therefore, in the deployed UFS state, the second roller RL2 can support the second wing plate WP2.

[0163] The display device DD may also include a first main body BD1 and a second main body BD2.

[0164] The first body BD1 may be disposed below the display module DM and may primarily overlap with the first non-folding portion NFA1. The first body BD1 may be connected to the first rod portion LV1 and / or the first wing plate WP1. For example, the first body BD1 may be a driver (e.g., a printed circuit board (PCB) or the like) that drives the display module DM and / or a rear cover that supports the display module DM.

[0165] like Figure 13 As shown, the display device DD may have a first folded state FP1. For example, between the first link LK1 and the second link LK2 or between the first rod LV1 and the second rod LV2, the display device DD may unfold within a range of 70° to 120°.

[0166] During the first folded state FP1, the curved portion CVA can be folded inward.

[0167] During the first folded state FP1, the first roller RL1 can contact the first portion PT1. Therefore, during the first folded state FP1, the first roller RL1 can support the first portion PT1. With the first portion PT1 supported by the first roller RL1, the display module DM overlapping the first portion PT1 can remain folded. In other embodiments, during the first folded state FP1, the first bent portion BA1 can remain folded or be bent.

[0168] During the first folded state FP1, the second roller RL2 can contact the second wing plate WP2. Therefore, during the first folded state FP1, the second bending portion BA2 can either remain unfolded or bend.

[0169] During the first folded state FP1, the curved portion CVA can be folded inward. Therefore, the user can unfold and use the display device DD at a desired angle. The first roller RL1 can support the first wing plate WP1 (e.g., the first portion PT1), and the second roller RL2 can support the second wing plate WP2. Therefore, the first bent portion BA1 and the second bent portion BA2 can remain unfolded or bend. Thus, when the user uses the display device DD, no wrinkles will appear in the folded portion FA.

[0170] The length of the first part PT1 can be set appropriately as needed. For example, the length of the first part PT1 can correspond to the angle of the first folded state FP1.

[0171] refer to Figure 14 The display device DD can have a second folded state FP2 and a folded state FS. For example, between the first link LK1 and the second link LK2 or between the first rod LV1 and the second rod LV2, the display device DD can be folded within a range of 0° to 70°.

[0172] In the second folded state FP2 and the folded state FS, the curved portion CVA can be folded inward.

[0173] During the second folded state FP2 and the folded state FS, the first roller RL1 may not contact the first portion PT1. Therefore, during the second folded state FP2 and the folded state FS, the first roller RL1 may not support the first portion PT1.

[0174] For example, as described above, since the positions of the first rod rotation axis LRX1 and the first connecting rod rotation axis KRX1 are different from each other, the first wing plate WP1 can be folded by the reaction force of the display module DM. Therefore, in the second folded state FP2 and the folded state FS, the first bent portion BA1 can be folded outward. In other embodiments, when the first roller RL1 does not support the first portion PT1, the display module DM that overlaps with the boundary of the first portion PT1 can be folded. By the same principle, the second bent portion BA2 can be folded outward. In other embodiments, when the second roller RL2 does not support the second wing plate WP2, the display module DM that overlaps with the boundary of the second wing plate WP2 can be folded.

[0175] Therefore, when the user carries the display device DD, the increase in the thickness of the display device DD can be compensated for (or reduced).

[0176] refer to Figure 15 As described above, the position of the first rod rotation axis LRX1 can be different from the position of the first connecting rod rotation axis KRX1. Therefore, the first rod rotation trajectory LRT can be different from the first connecting rod rotation trajectory KRT. The first roller RL1 can be guided by the first groove SL1 and can move linearly. In other embodiments, the display device DD can cause different rotation trajectories of the rod (e.g., the first rod LV1) and the connecting rod (e.g., the first connecting rod LK1) by using two rotation axes located at different positions (e.g., the first rod rotation axis LRX1 and the first connecting rod rotation axis KRX1). The linear movement of the roller (e.g., the first roller RL1) can be caused by using the difference between the rotation trajectories described above.

[0177] The first wing plate WP1 may include a second thickness TH2 having a thickness greater than that of the second portion PT2 (see...). Figure 12 The first thickness TH1 is relatively thick (see) Figure 12 The first part PT1, and therefore, the first part PT1 can be supported by the first roller RL1.

[0178] Therefore, during the first folded state FP1, the curved portion CVA of the display device DD can be folded inward, and the first bent portion BA1 and the second bent portion BA2 can neither be bent nor folded. Thus, when the user uses the display device DD, no wrinkles will appear in the folded portion FA.

[0179] In the second folded state FP2 and the folded state FS, the bent portion CVA can be folded inward, and the first bent portion BA1 and the second bent portion BA2 can be folded outward. Therefore, when the user carries the display device DD, the increase in the thickness of the display device DD can be compensated for (or reduced).

[0180] Figure 16 This is a schematic diagram illustrating a display device according to another embodiment of the present disclosure.

[0181] refer to Figure 16 The display device DD' according to another embodiment of this disclosure can be substantially the same as the display device DD described above, except for the gear to which the linkage is connected, the location of the groove, and the shape of the wing plate.

[0182] The display device DD' may include a first rod LV1' and a first connecting rod LK1', and the first connecting rod LK1' may be connected to a second gear GR2. In other embodiments, the second gear GR2 may be connected between the first rod LV1' and the first connecting rod LK1', and the first gear GR1 may be connected to the second gear GR2. Therefore, the position of the first connecting rod rotation axis KRX1' may substantially coincide with the center of the second gear GR2. Therefore, the rotation trajectory KRT' of the first connecting rod may be different from the rotation trajectory LRT of the first rod.

[0183] The first groove SL1' can be formed in a configuration other than the first rod portion LV1'. For example, the first groove SL1' can be formed in the first body BD1'. The first roller RL1 can move linearly along the first groove SL1'.

[0184] The shape of the first wing plate WP1', which includes the first part PT1' and the second part PT2', can be appropriately set as needed. For example, the length and thickness of the first part PT1' can correspond to the angles of the first folded state FP1 and the second folded state FP2.

[0185] Figure 17 This is a schematic cross-sectional view showing a display device according to yet another embodiment of the present disclosure.

[0186] refer to Figure 17 According to yet another embodiment of the present disclosure, the display device DD1 may include at least one folded portion and at least one non-folded portion. In this embodiment, Figure 3 The folded portion FA shown may include a first folded portion FA1 and a second folded portion FA2. For example, as... Figure 17As shown, the display device DD1 may include a first non-foldable portion NFA1, a first foldable portion FA1, a second non-foldable portion NFA2, a second foldable portion FA3, and a third non-foldable portion NFA3. The second non-foldable portion NFA2 may be disposed adjacent to the first non-foldable portion NFA1 in the first direction D1, and the first foldable portion FA1 may be located between the first non-foldable portion NFA1 and the second non-foldable portion NFA2. The third non-foldable portion NFA3 may be disposed adjacent to the second non-foldable portion NFA2 in the first direction D1, and the second foldable portion FA2 may be located between the second non-foldable portion NFA2 and the third non-foldable portion NFA3.

[0187] The first non-folded portion NFA1, the first folded portion FA1, the second non-folded portion NFA2, the second folded portion FA2, and the third non-folded portion NFA3 can display images.

[0188] The first fold portion FA1 and the second fold portion FA2 can be repeatedly folded and unfolded. For example, the first fold portion FA1 and the second fold portion FA2 can be folded inwards.

[0189] Figure 18 It is shown Figure 17 An exploded perspective view of the display device. Figure 19 It is shown Figure 17 A schematic perspective view of the display device.

[0190] refer to Figure 18 and Figure 19 The display device DD1 may include a display module DM, a first wing plate WP1, a second wing plate WP2, a first hinge assembly HA1, a second hinge assembly HA2, a third wing plate WP3, a fourth wing plate WP4, a third hinge assembly HA3, and a fourth hinge assembly HA4.

[0191] The display module DM may include a display panel and display images.

[0192] The first wing plate WP1 can be disposed below the display module DM and can overlap with the first folded portion FA1 in the third direction D3. For example, the first wing plate WP1 can extend in the second direction D2 and can overlap with the first folded portion FA1, which is arranged to be adjacent to the first non-folded portion NFA1 and the second non-folded portion NFA2.

[0193] The second wing plate WP2 can be disposed below the display module DM and can overlap with the first folded portion FA1 in the third direction D3. For example, the second wing plate WP2 can extend in the second direction D2, can be disposed adjacent to the first wing plate WP1 in the first direction D1, and can overlap with the first folded portion FA1 disposed adjacent to the first non-folded portion NFA1 and the second non-folded portion NFA2.

[0194] The first hinge assembly HA1 may be disposed below the first wing plate WP1 and the second wing plate WP2. For example, the first hinge assembly HA1 may include a first rod portion LV1 and a second rod portion LV2. The first rod portion LV1 may correspond to the first wing plate WP1, and the second rod portion LV2 may correspond to the second wing plate WP2.

[0195] The second hinge assembly HA2 can be disposed below the first wing WP1 and the second wing WP2. For example, the second hinge assembly HA2 can have the same shape as the first hinge assembly HA1 and can be disposed adjacent to the first hinge assembly HA1 in the second direction D2.

[0196] The first hinge assembly HA1 and the second hinge assembly HA2 can be used as hinges to guide folding and unfolding. The first wing plate WP1 and the second wing plate WP2 can uniformly transmit the forces generated from the first hinge assembly HA1 and the second hinge assembly HA2 to the first folding portion FA1.

[0197] The third wing plate WP3 can be disposed below the display module DM and can overlap with the second folded portion FA2 in the third direction D3. For example, the third wing plate WP3 can extend in the second direction D2 and overlap with the second folded portion FA2, which is arranged to be adjacent to the second non-folded portion NFA2 and the third non-folded portion NFA3.

[0198] The fourth wing plate WP4 can be below the display module DM and can overlap with the second folded portion FA2 in the third direction D3. For example, the fourth wing plate WP4 can extend in the second direction D2, can be arranged adjacent to the third wing plate WP3 in the first direction D1, and can overlap with the second folded portion FA2 arranged adjacent to the second non-folded portion NFA2 and the third non-folded portion NFA3.

[0199] The third hinge assembly HA3 can be disposed below the third wing plate WP3 and the fourth wing plate WP4. For example, the third hinge assembly HA3 can have the same shape as the first hinge assembly HA1 and can be disposed adjacent to the first hinge assembly HA1 in the first direction D1.

[0200] The fourth hinge assembly HA4 can be disposed below the third wing WP3 and the fourth wing WP4. For example, the fourth hinge assembly HA4 can have the same shape as the third hinge assembly HA3 and can be disposed adjacent to the third hinge assembly HA3 in the second direction D2.

[0201] The third hinge assembly HA3 and the fourth hinge assembly HA4 can be used as hinges to guide folding and unfolding. The third wing plate WP3 and the fourth wing plate WP4 can evenly transfer the forces generated from the third hinge assembly HA3 and the fourth hinge assembly HA4 to the second folding section FA2.

[0202] Figure 20 This is a schematic cross-sectional view showing a display device according to yet another embodiment of the present disclosure.

[0203] refer to Figure 20 According to yet another embodiment of the present disclosure, the display device DD2 may include at least one folded portion and at least one non-folded portion. For example, such as Figure 20 As shown, the display device DD2 may include a first non-foldable portion NFA1, a first foldable portion FA1, a second non-foldable portion NFA2, a second foldable portion FA2, and a third non-foldable portion NFA3. The second non-foldable portion NFA2 may be disposed adjacent to the first non-foldable portion NFA1 in the first direction D1, and the first foldable portion FA1 may be located between the first non-foldable portion NFA1 and the second non-foldable portion NFA2. The third non-foldable portion NFA3 may be disposed adjacent to the second non-foldable portion NFA2 in the first direction D1, and the second foldable portion FA2 may be located between the second non-foldable portion NFA2 and the third non-foldable portion NFA3.

[0204] The first non-folded portion NFA1, the first folded portion FA1, the second non-folded portion NFA2, the second folded portion FA2, and the third non-folded portion NFA3 can display images.

[0205] The first fold portion FA1 and the second fold portion FA2 can be repeatedly folded and unfolded. For example, the first fold portion FA1 can be folded inward (i.e., folded inward), and the second fold portion FA2 can be folded outward (i.e., folded outward).

[0206] Figure 21 It is shown Figure 20 An exploded perspective view of the display device. Figure 22 It is shown Figure 20 A schematic perspective view of the display device.

[0207] refer to Figure 21 and Figure 22The display device DD2 may include a display module DM, a first wing plate WP1, a second wing plate WP2, a first hinge assembly HA1, a second hinge assembly HA2, a third wing plate WP3, a fourth wing plate WP4, a third hinge assembly HA3, and a fourth hinge assembly HA4.

[0208] The display module DM may include a display panel and display images.

[0209] The first wing plate WP1 can be disposed below the display module DM and can overlap with the first folded portion FA1 in the third direction D3. For example, the first wing plate WP1 can extend in the second direction D2 and can overlap with the first folded portion FA1, which is arranged to be adjacent to the first non-folded portion NFA1 and the second non-folded portion NFA2.

[0210] The second wing plate WP2 can be disposed below the display module DM and can overlap with the first folded portion FA1 in the third direction D3. For example, the second wing plate WP2 can extend in the second direction D2, can be disposed adjacent to the first wing plate WP1 in the first direction D1, and can overlap with the first folded portion FA1 disposed adjacent to the first non-folded portion NFA1 and the second non-folded portion NFA2.

[0211] The first hinge assembly HA1 may be disposed below the first wing plate WP1 and the second wing plate WP2. For example, the first hinge assembly HA1 may include a first rod portion LV1 and a second rod portion LV2. The first rod portion LV1 may correspond to the first wing plate WP1, and the second rod portion LV2 may correspond to the second wing plate WP2.

[0212] The second hinge assembly HA2 can be disposed below the first wing WP1 and the second wing WP2. For example, the second hinge assembly HA2 can have the same shape as the first hinge assembly HA1 and can be disposed adjacent to the first hinge assembly HA1 in the second direction D2.

[0213] The first hinge assembly HA1 and the second hinge assembly HA2 can be used as hinges to guide folding and unfolding. The first wing plate WP1 and the second wing plate WP2 can uniformly transmit the forces generated from the first hinge assembly HA1 and the second hinge assembly HA2 to the first folding portion FA1.

[0214] The third wing plate WP3 can be disposed below the display module DM and can overlap with the second folded portion FA2 in the third direction D3. For example, the third wing plate WP3 can extend in the second direction D2 and overlap with the second folded portion FA2, which is arranged to be adjacent to the second non-folded portion NFA2 and the third non-folded portion NFA3.

[0215] The fourth wing plate WP4 can be disposed below the display module DM and can overlap with the second folded portion FA2 in the third direction D3. For example, the fourth wing plate WP4 can extend in the second direction D2, can be disposed adjacent to the third wing plate WP3 in the first direction D1, and can overlap with the second folded portion FA2 disposed adjacent to the second non-folded portion NFA2 and the third non-folded portion NFA3.

[0216] The third hinge assembly HA3 can be located below the third wing plate WP3 and the fourth wing plate WP4.

[0217] The fourth hinge assembly HA4 can be disposed below the third wing WP3 and the fourth wing WP4. For example, the fourth hinge assembly HA4 can have the same shape as the third hinge assembly HA3 and can be disposed adjacent to the third hinge assembly HA3 in the second direction D2.

[0218] The third hinge assembly HA3 and the fourth hinge assembly HA4 can be used as hinges to guide folding and unfolding. The third wing plate WP3 and the fourth wing plate WP4 can evenly transfer the forces generated from the third hinge assembly HA3 and the fourth hinge assembly HA4 to the second folding section FA2.

[0219] The display devices DD, DD', DD1, and DD2 according to the embodiments can be applied to various electronic devices. The electronic devices according to the embodiments may include the display devices DD, DD', DD1, and DD2 described above, and may also include modules or devices with additional functions in addition to the display devices DD, DD', DD1, and DD2.

[0220] Figure 23 This is a schematic block diagram illustrating an electronic device according to an embodiment of the present disclosure.

[0221] refer to Figure 23 The electronic device 10 may include a display module 11, a processor 12, a memory 13, and a power module 14.

[0222] The processor 12 may include at least one of a central processing unit (CPU), an application processor (AP), a graphics processing unit (GPU), a communication processor (CP), an image signal processor (ISP), and a controller.

[0223] The memory 13 can store data information required for the operation of the processor 12 or the display module 11. When the processor 12 executes the application stored in the memory 13, image data signals and / or input control signals can be sent to the display module 11, and the display module 11 can process the received signals and output image information through the display screen.

[0224] The power module 14 may include a power supply module and a power conversion module. The power supply module may be a power adapter, a battery device, or the like. The power conversion module converts the power supplied by the power supply module into the power required for the operation of the electronic device 10.

[0225] At least one of the components of the electronic device 10 described above may be included in the display device according to the embodiments described above. Some of the individual modules that are functionally included in a single module may be included in the display device, and other modules may be provided separately from the display device. For example, the display device may include a display module 11, and the processor 12, memory 13, and power module 14 may be provided in the electronic device 10 in the form of other devices besides the display device.

[0226] Figure 24 This is a schematic diagram of an electronic device.

[0227] refer to Figure 24 The various electronic devices employing the display device according to the embodiments may include not only image display electronic devices, but also wearable electronic devices including display modules, vehicle electronic devices 10_3 including display modules, etc. Image display electronic devices may be smartphones 10_1a, tablet PCs 10_1b, laptop computers 10_1c, televisions 10_1d, desktop monitors 10_1e, or the like. Wearable electronic devices may be smart glasses 10_2a, head-mounted displays 10_2b, smartwatches 10_2c, or the like. Vehicle electronic devices 10_3 may be central information displays (CIDs) installed on the dashboard and center console of a vehicle, interior mirror displays, or the like.

[0228] Although certain implementations and methods have been described herein, other implementations and modifications will be apparent from that description. Therefore, this disclosure is not limited to such implementations, but lies within the broader scope of the appended claims and various obvious modifications and equivalent arrangements that will be apparent to those skilled in the art.

Claims

1. A display apparatus comprising: a display module including a folding portion and at least one non-folding portion disposed adjacent to the folding portion; a first hinge assembly disposed under the display module and including a first lever, a first link, and a first roller; and a first flap disposed between the display module and the first hinge assembly, wherein the first lever overlaps the folding portion and rotates about a first lever rotation axis, the first link rotates about a first link rotation axis, and the first roller is fixedly attached to the first link and moves along a first groove, and the first flap overlaps the folding portion, rotates with rotation of the first lever, and contacts the first roller. the folding portion includes a curved portion and a first bending portion disposed between the curved portion and the non-folding portion, 2. The display device according to claim 1, wherein the curved portion is inwardly folded in a first folded state after an unfolded state, and the first bending portion is outwardly folded in a second folded state after the first folded state. the first flap is divided into a first portion and a second portion, 3. The display device of claim 2, wherein, the first portion is disposed adjacent to the non-folding portion, and the second portion is connected to the first portion, the second portion has a thickness smaller than that of the first portion and is disposed adjacent to the first lever rotation axis, and the first roller contacts the first portion in the first folded state. the first roller supports the first portion in the first folded state, and 4. The display device according to claim 3, wherein the display module overlapping the first portion is not folded with the first portion being supported by the first roller. the first roller does not support the first portion in the second folded state, and 5. The display device according to claim 3, wherein the display module overlapping a boundary of the first portion is folded with the first portion not being supported by the first roller. the first portion includes:

6. The display device according to claim 3, wherein a lower surface contacting the first roller; and an upper surface facing away from the lower surface and parallel to the lower surface. a position of the first link rotation axis is different from a position of the first lever rotation axis, and 7. The display device according to claim 1, wherein the first link rotation axis is located under the first lever rotation axis. 8.The display apparatus of claim 1, further comprising: at least one gear connecting the first lever and the first link. the gear includes a first gear and a second gear, 9. The display device of claim 8, wherein, the first gear is connected between the second gear and the first link, and the second gear is connected between the first gear and the first lever. the gear includes a first gear and a second gear, 10. The display device of claim 8, wherein, the first gear is connected to the second gear, and the second gear is connected between the first lever and the first link. a groove corresponding to the first roller is formed at one end of the first link, and 11. The display device according to claim 1, wherein the first roller is fixedly attached to the first link in the groove through a first roller pin. the first groove is formed in the first lever.

12. The display device of claim 1, wherein, the first hinge assembly further includes:

13. The display device of claim 1, wherein, a second lever rotating about a second lever rotation axis; a second link rotating about a second link rotation axis; and a second roller fixedly attached to the second link and moving along a second groove. a second roller fixedly attached to the second link and moving along a second groove.

14. The display device of claim 13, wherein, The first hinge assembly further includes: a third link rotating about the first link rotation axis and opposite the first link across the first rod portion; and a third roller fixedly attached to the third link and opposite the first roller across the first rod portion. 15.The display device of claim 13, further comprising: a second wing plate disposed between the display module and the first hinge assembly, wherein the second wing plate overlaps the folding portion, rotates with rotation of the second rod portion, and contacts the second roller. 16.The display device of claim 1, further comprising: a second hinge assembly disposed under the display module, overlapping the folding portion, and having the same shape as the first hinge assembly.

17. The display device of claim 16, wherein, The folding portion includes a first folding portion and a second folding portion spaced apart from the first folding portion, and The first hinge assembly and the second hinge assembly overlap the first folding portion. 18.The display device of claim 17, further comprising: a third hinge assembly disposed under the display module and overlapping the second folding portion.

19. The display device of claim 1, wherein, The display module includes: a display panel; and a support member disposed under the display panel and having a hole overlapping the folding portion. 20.An electronic device comprising: a display device including a display module and a first hinge assembly; a power supply supplying power to the display device; and a first wing plate disposed between the display module and the first hinge assembly, wherein the display module includes a folding portion and at least one non-folding portion disposed adjacent to the folding portion, the first hinge assembly is disposed under the display module and includes a first rod portion, a first link, and a first roller, the first rod portion overlaps the folding portion and rotates about a first rod portion rotation axis, the first link rotates about a first link rotation axis, and the first roller is fixedly attached to the first link and moves along a first groove, and the first wing plate overlaps the folding portion, rotates with rotation of the first rod portion, and contacts the first roller.

Images