Display device

Abstract

A display device comprises a display panel constructed such that at least a portion thereof is deformable, a skirt portion for supporting the display panel, and a printed circuit board electrically connected to the display panel, wherein at least a portion of the skirt portion is bendable, wherein the skirt portion comprises gap maintaining means provided at the bendable portion thereof.

Description

Technical Field

[0001] The present invention relates to a display device, and more specifically, to a display device comprising a structure having improved durability. Background Technology

[0002] The content described in this background section simply provides background information about the present invention and does not constitute prior art.

[0003] As we enter a fully mature information age, display devices that visually express electrical information signals have developed rapidly. In response, a variety of display devices with superior performance, thinness, light weight, and low power consumption have been developed.

[0004] Display devices include liquid crystal displays (LCDs), quantum dot (QD) displays, field-emitting diode (FED) displays, electrowetting displays (EWDs), and organic light-emitting diode (OLEDs).

[0005] Display devices have been miniaturized, making them portable. They have been developed for installation on mobile devices such as vehicles. This allows users to more conveniently use display devices in vehicles. Summary of the Invention

[0006] To improve user convenience, display devices with roll-up structures are being actively developed. Roll-up display devices and the display modules included therein can be equipped with roll-up display sections that have a flexible, curved structure.

[0007] The display unit can be repeatedly bent depending on its use. When deformation caused by bending occurs repeatedly, the display unit can be damaged. Therefore, the display unit that is repeatedly bent should have a structure that increases the durability of the display unit by suppressing damage caused by repeated deformation.

[0008] For example, in a rollable display device, an apron can be attached to guide the bending and movement of the display unit. The apron can also be used to hold the display unit in its unfolded state.

[0009] Furthermore, when the display part, made of a relatively thin film, is bent, the apron part can increase the durability of the display part by suppressing excessive deformation.

[0010] However, since the apron is thicker than the display section, the overall load of the display device can be increased, or the area occupied by the combined structure of the display section and the apron can be increased.

[0011] The apron portion disposed on the back of the display panel can be divided into three parts: a joining portion for engaging with one end of a bending actuator for curling; a bending portion that actually bends so that the display panel curls with a constant radius of curvature; and a fixing portion for maintaining a vertical standing state while the upper part of the display panel remains stable. In this invention, for better understanding, the joining portion may be referred to as the bottom apron portion, the bending portion as the connecting apron portion, and the fixing portion as the top apron portion.

[0012] Since the apron section is typically heavier than the display panel, the apron sections can be pre-assembled together, and then the display panel can be attached to the assembled apron section. In this way, a rollable display device can be manufactured.

[0013] However, since the apron parts must be assembled together, jigs can be used to create a gap between them. The jigs can be used to assemble the apron parts, and tape can be applied to maintain the gap or temporarily secure the assembled apron parts. When a non-uniform gap is created between the apron parts while attaching the display panel to them, areas with larger or smaller radii of curvature may appear locally when the rollable display device is bent or unfolded. This can apply stress to the display panel. Accumulated stress can lead to damage or deformation of the display panel, thus becoming a defect in the rollable display device.

[0014] During the apron assembly fixture process and the step of securing the apron with tape, the apron parts may become misaligned or shifted. Therefore, it may be difficult to maintain equal spacing between the apron parts.

[0015] Furthermore, the operation of the fixtures in the process of using assembly jigs is not simple and can require a lot of time.

[0016] To solve this problem, it is necessary to design apron sections that can be assembled with each other without the need for individual clamps while maintaining regular spacing between apron sections.

[0017] One object of the present invention is to provide a display device having an apron structure, wherein the apron can be easily assembled without the need for apron assembly fixtures, while maintaining a uniform spacing between the apron portions.

[0018] The objectives of this invention are not limited to those described above. Other objectives and advantages of the invention not mentioned herein will be understood based on the following description and will become clearer based on embodiments thereof. Furthermore, it will be readily understood that the objectives and advantages of the invention can be achieved using the manner shown in the claims and combinations thereof.

[0019] The display device according to an embodiment of the present invention includes a display panel.

[0020] A first aspect of the present invention provides a display device comprising: a display panel configured such that at least a portion thereof is deformable; an apron portion for supporting the display panel; and a printed circuit board electrically connected to the display panel, wherein at least a portion thereof is flexible, and wherein the apron portion includes a gap retaining device disposed at its flexible portion.

[0021] A second aspect of the present invention provides a display device, comprising: a display panel; a back plate, a base plate, and an apron portion for supporting the display panel; and a foam strip disposed between the base plate and the apron portion, wherein at least a portion of the apron portion is flexible, and wherein the apron portion includes a gap retaining device disposed at its flexible portion.

[0022] Specific details of other embodiments are included in the detailed description and accompanying drawings.

[0023] The apron portion according to the invention has a plate-like structure that is attached to and covers the entire rear of the display panel. When the rollable display device is bent or unfolded, the apron portion allows the display panel to move stably without wobbling.

[0024] The apron part according to the invention can have the following structure: it can be easily assembled during the apron part assembly process without the need for a separate clamp.

[0025] Furthermore, due to this structure, the apron sections can maintain a regular spacing between each other, and the display panel is not subjected to additional stress during its bending or unfolding operation. Therefore, even if the rollable display device is repeatedly bent, the device's durability can be improved while supporting the apron sections.

[0026] In addition to the effects described above, the specific effects of the invention will be described below along with the specific details of how the invention is carried out.

[0027] The effects of the present invention are not limited to those described above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

[0028] The objectives, solutions, and effects of the present invention described above do not specify the essential features of the claims. Therefore, the scope of the claims is not limited by the objectives, solutions, and effects of the present invention described above. Attached Figure Description

[0029] Figure 1 This is a front view showing the display module according to an embodiment.

[0030] Figure 2It is shown Figure 1 The plan view of area A is magnified.

[0031] Figure 3 It is along Figure 2 A cross-sectional view of the subpixels cut by I-I'.

[0032] Figure 4 yes Figure 1 An enlarged cross-sectional view of the display module.

[0033] Figure 5 This is a plan view showing the plane of the apron portion according to an embodiment of the present invention.

[0034] Figure 6 This is a view showing the clamps used to assemble the apron section.

[0035] Figure 7A and Figure 7B This is a cross-sectional view showing a section of the apron portion according to an embodiment of the present invention.

[0036] Figure 8A and Figure 8B This is a cross-sectional view showing a section of the apron according to another embodiment of the present invention.

[0037] Figure 9 This is a plan view showing the plane of a single connecting apron portion according to an embodiment.

[0038] Figures 10A to 10C This is a view showing the apron and display module, which are attached to the housing and moved according to an embodiment of the present invention.

[0039] Figure 11 This is an interior view of a vehicle that uses a display device according to an embodiment of the present invention. Detailed Implementation

[0040] The advantages, features, and implementation methods of the present invention will become clear from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided only to make the disclosure of the present invention thorough and complete, and to fully convey the scope of the invention to those skilled in the art. The scope of the invention is defined only by the scope of the claims.

[0041] The shapes, dimensions, ratios, angles, quantities, etc., disclosed in the accompanying drawings to illustrate embodiments of the invention are exemplary, and the invention is not limited thereto. The same reference numerals refer to the same elements herein. Furthermore, in describing the invention, detailed descriptions of relevant known elements will be omitted when it is determined that such detailed descriptions would unnecessarily obscure the focus of the invention. It will be further understood that the use of the terms "comprising," "having," and "including" in this application indicates the presence of the described features, integrals, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integrals, operations, elements, components, and / or portions thereof.

[0042] When interpreting a numerical value, even without a separate explicit statement about the range of error, the value should be interpreted as including such a range of error.

[0043] It will be understood that when an element or layer is referred to as being "connected to" or "joined to" another element or layer, it may be directly disposed on the other element or layer, or directly connected to or joined to the other element or layer, or one or more intermediate elements or layers may be present. Furthermore, it will be understood that when an element or layer is referred to as being "between" two elements or layers, there may be only that element or layer between the two elements or layers, or one or more intermediate elements or layers may be present. Furthermore, it will be understood that when a first element or layer is referred to as being "on" or "below" a second element or layer, the first element may be directly located on or below the second element, or it may be indirectly disposed on or below the second element provided that a third element or layer is inserted between the first and second elements or layers.

[0044] Furthermore, as used herein, when a layer, membrane, region, plate, etc., is disposed on or above another layer, membrane, region, plate, etc., the former can directly contact the latter, or other layers, membranes, regions, plates, etc., can be disposed between the former and the latter. As used herein, when a layer, membrane, region, plate, etc., is directly disposed on or above another layer, membrane, region, plate, etc., the former directly contacts the latter, and no other layers, membranes, regions, plates, etc., are disposed between the former and the latter. Furthermore, as used herein, when a layer, membrane, region, plate, etc., is disposed below or below another layer, membrane, region, plate, etc., the former can directly contact the latter, or other layers, membranes, regions, plates, etc., can be disposed between the former and the latter. As used herein, when a layer, membrane, region, plate, etc., is directly disposed below or below another layer, membrane, region, plate, etc., the former directly contacts the latter, and no other layers, membranes, regions, plates, etc., are disposed between the former and the latter.

[0045] When describing temporal relationships, for example, when the chronological order between two events is described as "after", "following", and "before", other events may occur in between, unless it is specified that they are "immediately following", "immediately following", or "immediately preceding".

[0046] It will be understood that although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, regions, layers, and / or portions, these elements, components, regions, layers, and / or portions should not be limited by these terms. These terms are merely used to distinguish one element, component, region, layer, or portion from another. Therefore, without departing from the spirit and scope of the invention, the first element, component, region, layer, or portion described below may be referred to as the second element, component, region, layer, or portion.

[0047] The features of the various embodiments of the present invention can be combined partially or entirely with each other, and can be technically related or interoperable with each other. The embodiments can be implemented independently of each other, or they can be implemented together in a related relationship.

[0048] For ease of explanation, spatial relative terms such as “below,” “under,” “lower,” “below,” “above,” “upper,” etc., may be used herein to describe the relationship between one element or feature shown in the figures and another element or feature. It will be understood that, in addition to the orientations depicted in the figures, spatial relative terms are intended to cover different orientations of the device in use or operation. For example, when the device in the figure is flipped, an element described as “below,” “below,” or “below” other elements or features will be located “above” other elements or features. Thus, the exemplary terms “below” and “below” can cover both the orientations of above and below. In other respects, the device may be positioned, for example, rotated 90 degrees or positioned in other orientations, and the spatial relative terms used herein should be interpreted accordingly.

[0049] Unless otherwise defined, all terms used herein, including technical and scientific terms, shall have the same meaning as commonly understood by one of ordinary skill in the art to which the inventive concept pertains. It will also be understood that terms such as those defined in common dictionaries shall be interpreted as having the same meaning as their meaning in the context of the relevant field, and shall not be interpreted in an idealized or overly formalized manner unless expressly defined herein.

[0050] As used herein, the first direction refers to the vertical direction of the display device in its installed state for everyday use. The second direction refers to the direction orthogonal to the first direction, and the third direction refers to the direction perpendicular to both the first and second directions. Furthermore, as used herein, the phrase "moving in the first direction" and the phrase "moving up and down" can have the same meaning.

[0051] A Cartesian coordinate system can be used in the accompanying diagram. In the Cartesian coordinate system, the z-axis represents the first direction, the y-axis represents the second direction, and the x-axis represents the third direction.

[0052] As used herein, the term "display device" can refer to a display device in the narrow sense, including a display panel and a driver for driving the display panel, including liquid crystal modules (LCM), organic light-emitting diode (OLED) modules, or quantum dot (QD) modules. Furthermore, "display device" can also broadly include finished or final products having LCM, OLED, or QD modules, including notebook computers, televisions, computer monitors, automotive equipment or vehicle instrument displays, setelectronic apparatus, or set apparatus.

[0053] Therefore, the display device according to the present invention may include the display device itself in a narrow sense, such as an LCM, OLED module, QD module, etc., and may also include finished products or final products in a broad sense, including unit equipment as an application product or end-user equipment.

[0054] Furthermore, in some cases, an LCM, OLED module, or QD module consisting of a display panel and a driver can be referred to as a "display device" in a narrow sense. An electronic device that is a finished product including an LCM, OLED module, or QD module can be referred to as a "set device" in a broad sense. For example, a display device in a narrow sense may include: a display panel such as a liquid crystal panel, an organic light-emitting diode (OLED) display panel, or a quantum dot display panel; and a source PCB that serves as a controller for driving the display panel. A set device in a broad sense may include a display panel such as a liquid crystal panel, an OLED display panel, or a quantum dot display panel; a source PCB that serves as a controller for driving the display panel; and a set PCB that serves as a set controller electrically connected to the source PCB and controlling the set device.

[0055] The display panel used herein can be any type of display panel, such as a liquid crystal display panel, an organic light-emitting diode (OLED) display panel, a quantum dot (QD) display panel, an electroluminescent display panel, etc. The display panel used in this invention is not limited to a specific display panel (which includes a flexible substrate for an OLED display panel and an underlying backplate support structure and has a bendable bezel). Furthermore, the shape or size of the display panel used in the display device according to embodiments of the present invention is not limited.

[0056] More specifically, when the display panel is implemented as an organic light-emitting diode (OLED) display panel, the display panel may include multiple gate lines and multiple data lines, as well as multiple pixels formed in areas where the gate lines and data lines intersect each other. Furthermore, the display panel may be configured to include: an array having thin-film transistors (which are elements that selectively apply voltage to each pixel); an organic light-emitting element layer located on the array; and an encapsulation substrate or encapsulation layer disposed on the array to cover the organic light-emitting element layer. The encapsulation layer protects the thin-film transistors and the organic light-emitting element layer from external impacts and prevents moisture or oxygen from penetrating into the organic light-emitting element layer. Additionally, the light-emitting layer formed on the array may include an inorganic light-emitting layer, such as a nanoscale material layer or quantum dots.

[0057] Figure 1 This is a front view showing the display module 10 according to an embodiment.

[0058] The display device according to the embodiment may include a display module 10. The display module 10 may include a display panel 100 and an apron portion 200. The display panel 100 may be constructed such that at least a portion thereof is deformable.

[0059] The display panel 100 and the apron portion 200 are configured to engage with each other. The display panel 100 may be made of a flexible material that makes at least a portion of the display panel 100 deformable. The apron portion 200 is configured such that at least a portion of it is deformable or bendable and can be engaged with the display panel 100.

[0060] The apron portion 200 may have a structure in which at least a portion is deformable, thereby allowing at least a portion to move integrally with the display panel 100. Each of the display panel 100 and the apron portion 200 may be configured such that at least a portion slides in a first direction. That is, each of the display panel 100 and the apron portion 200 may be configured such that at least a portion is movable vertically.

[0061] To accommodate this deformation, the apron 200 may include a bottom apron 230 disposed at the bottom of the display panel 100, a link apron 210 disposed in the middle region of the display panel 100, and a top apron 220 disposed at the top of the display panel 100.

[0062] The bottom apron 230 may be attached to a portion of the display panel 100, for example, to the underside of the display panel 100, to support the lower part of the display panel 100 and the connector 310 of the printed circuit board 300.

[0063] The connecting apron portion 210 is attached to the center of the display panel 100 and slides in a first direction so as to provide good support for the display panel 100 even if the display panel is bent or unfolded. For this purpose, multiple rod-shaped apron portions can be connected to each other to form a connecting apron portion.

[0064] The top apron 220 may be attached to a portion of the display panel 100, for example, to the upper side of the display panel 100, to support and protect the upper part of the display panel 100 while the rollable display device or display module 10 is in an upright position. The top apron 220, the connecting apron 210, and the bottom apron 230 may be connected to each other.

[0065] In one example, a protective film 460 for protecting the display panel 100 may be attached to the front of the display panel 100. For example, the protective film 460 may be implemented as an anti-diffusion film to prevent the display panel 100 from cracking and spreading due to external impact, thereby protecting the user.

[0066] The display panel 100 may be formed in a plate shape. A glass cover 450 may be disposed between the display panel 100 and the protective film 460. Light shining from the display panel 100 can pass through the glass cover 450, therefore the glass cover 450 may be made of a transparent material.

[0067] In this regard, the area of ​​the glass cover 450 can be larger than the area of ​​the display panel 100, so that all the light emitted from the display panel 100 can pass through the glass cover 450.

[0068] In addition, the display panel 100 may be formed as a structure consisting of a polarizer, a substrate, a backplate, a foam strip, and an adhesive layer stack for bonding them together.

[0069] The display module 10 may further include a printed circuit board 300 having driver circuitry for controlling the operation of the display panel 100. The printed circuit board 300 may include a plurality of connection lines 310 electrically connected to the display panel 100, thereby connecting the printed circuit board 300 and the display panel 100 to each other.

[0070] Various active and passive components, as well as printed circuits, constituting the driver circuit can be disposed in the printed circuit board 300 and the connector 310. In this respect, the driver circuit can be distributed on the entirety or a portion of the printed circuit board 300 and the connector 310.

[0071] In one example Figure 1 An exploded view of the printed circuit board 300 and connector 310 in their unfolded state is shown. However, when the printed circuit board 300 is mounted on the housing 20 (see...),... Figure 10A When in use, connector 310 is flexible.

[0072] Furthermore, the apron portion 200 can be attached to the front of the glass cover 450 and can be disposed on the edge of the display panel 100. Therefore, in the front view of the display device, the uneven portion 210 and the flat portion 220 of the apron portion 200 cover the edge of the glass cover 110, so that the apron portion 200 can be used as a frame.

[0073] This bezel has a structure that eliminates the need for a joining structure at the edge of the display panel 100, including the glass cover 450, thereby improving the quality of images or videos reproduced on the display panel 100 and improving the overall design quality of the display device.

[0074] In the prior art, black ink forming the bezel is applied between the glass cover 450 and the display panel 100 to form the bezel. For this purpose, black ink is applied to the edges of the glass cover 450 and the display panel 100. At the edge of the black ink at the point where the black ink, glass cover 450, and display panel 100 meet, a void is formed due to the thickness of the black ink. This void can degrade the quality of the display device.

[0075] In this embodiment, since the bezel in the display device is made of apron 200 instead of black ink, the black ink can be removed from the display device. Furthermore, since apron 200 is attached to the front of glass cover 450, any gaps or materials that would otherwise be present between glass cover 450 and display panel 100 are not provided. Therefore, no gaps are created.

[0076] This prevents gaps from forming at the edges of the black ink when the bezel is made of black ink. Therefore, the quality of the display device can be improved.

[0077] Figure 2 It is shown Figure 1 The plan view of area A is magnified. Figure 2 Is as Figure 1 An enlarged view of a portion of the display panel 100, specifically area A, showing the planar shape of the subpixels arranged in the display area.

[0078] exist Figure 2In the display panel 100, multiple anodes 151 are arranged in the display area. A dam 154 may fill the area between adjacent anodes 151. The dam 154 may cover the edges of the anodes 151, such that only the inner area of ​​the anodes 151 contacts the organic light-emitting layer. Therefore, the dam can be used to define the light-emitting area of ​​a sub-pixel. A spacer 155 may be disposed in a portion of the area where the dam 151 is provided. The spacer 155 may be arranged across the entire display panel 100 at a predetermined density. The spacer 155 may be used to support a deposition mask, so that the deposition mask used to cover or expose the organic layer in each sub-pixel does not directly contact the display panel 100 during the deposition process for forming the organic light-emitting layer. Figure 2 An example of a Pentile-type planar structure is shown, in which subpixels are arranged in a dot-like pattern. However, the invention is not limited to this; a Real-Type planar structure can also be used.

[0079] Figure 3 It shows along Figure 2 The cross-sectional structure of the sub-pixels cut by I-I'.

[0080] Reference Figure 3 The display device may include a substrate 101, a multi-buffer layer 102, and a lower buffer layer 103. A first transistor 120 may be disposed on the lower buffer layer 103. A first semiconductor layer 123 and a first gate 122 are used to form the first transistor 120. A lower gate insulating film 104 may be disposed on the first semiconductor layer 123 to insulate the first semiconductor layer 123 from the first gate 122. A first lower interlayer insulating film 105 and a second lower interlayer insulating film 106 may be sequentially disposed on the first gate 122. An upper buffer layer 107 may be disposed on the second lower interlayer insulating film 106.

[0081] The multiple buffer layer 102 can delay the diffusion of moisture or oxygen that permeates into the substrate 101, and can have a structure in which at least one layer made of silicon nitride (SiNx) and silicon oxide (SiOx) can be stacked alternately.

[0082] The lower buffer layer 103 can be used to protect the first semiconductor layer 123 and block various defects from the substrate. This lower buffer layer 103 can be made of amorphous silicon (a-Si), silicon nitride (SiNx), or silicon oxide (SiOx).

[0083] The first semiconductor layer 123 of the first thin-film transistor 120 may be composed of a polycrystalline semiconductor layer. The first semiconductor layer 123 may include a channel region, a source region, and a drain region.

[0084] Polycrystalline semiconductor layers have higher carrier mobility than both amorphous and oxide semiconductor layers, resulting in lower power consumption and superior reliability. Therefore, polycrystalline semiconductor layers can be used to drive transistors.

[0085] The first gate 122 may be disposed on the lower gate insulating film 104 and may be configured to overlap with the first semiconductor layer 123.

[0086] The second transistor 130 may be disposed on the upper buffer layer 107. The light-blocking layer 136 may be disposed below the region corresponding to the second transistor 130. (Refer to...) Figure 3 A light-blocking layer 136 may be disposed on the first lower interlayer insulating film 105 and in the region corresponding to the second transistor 130. The second semiconductor layer 133 of the second transistor 130 may be disposed on the second lower interlayer insulating film 106 and the upper buffer layer 107, overlapping the light-blocking layer 136. An upper gate insulating film 137 for insulating the second gate 132 and the second semiconductor layer 133 from each other may be disposed on the second semiconductor layer 133, and then an upper interlayer insulating film 108 may be disposed on the second gate 132. Each of the first gate 122 and the second gate 132 may be constructed as a single layer or multiple layers made of one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or alloys thereof. However, the invention is not limited thereto.

[0087] The first lower interlayer insulating film 105 and the second lower interlayer insulating film 106 may be composed of inorganic films having a higher hydrogen particle content than the upper interlayer insulating film 108. For example, each of the first lower interlayer insulating film 105 and the second lower interlayer insulating film 106 may be made of silicon nitride (SiNx) and may be formed using a deposition process using NH3 gas. The upper interlayer insulating film 108 may be made of silicon oxide (SiOx). The hydrogen particles contained in the first lower interlayer insulating film 105 and the second lower interlayer insulating film 106 may diffuse into the polycrystalline semiconductor layer during a hydrogenation process, thereby filling the pores in the polycrystalline semiconductor layer. Therefore, the polycrystalline semiconductor layer can be stabilized, thereby preventing the degradation of the characteristics of the first transistor 120. After the activation and hydrogenation process of the first semiconductor layer 123 of the first transistor 120, the second semiconductor layer 133 of the second transistor 130 may be formed. In this regard, the second semiconductor layer 133 may be made of oxide semiconductor. Since the second semiconductor layer 133 is not exposed to the high-temperature atmosphere of the activation and hydrogenation process of the first semiconductor layer 123, damage to the second semiconductor layer 133 can be prevented, thus improving its reliability. After the upper interlayer insulating film 108 is formed, first source contact holes 125S and first drain contact holes 125D, respectively corresponding to the source and drain regions of the first transistor, can be formed, and second source contact holes 135S and second drain contact holes 135D, respectively corresponding to the source and drain regions of the second transistor 130, can be formed. (Refer to...) Figure 3 The first source contact hole 125S and the first drain contact hole 125D can extend continuously from the upper interlayer insulating film 108 and the lower gate insulating film 104. The second source contact hole 135S and the second drain contact hole 135D for the second transistor 130 can extend continuously through the upper gate insulating film 137 and the upper interlayer insulating film 108. The first source 121 and the first drain 124 corresponding to the first transistor 120, and the second source 131 and the second drain 134 corresponding to the second transistor 130 can be formed simultaneously. As a result, the number of processes required to form the source and drain of the first transistor 120 and the second transistor 130 can be reduced.

[0088] Each of the first source 121 and the first drain 124, as well as the second source 131 and the second drain 134, may be constructed of a single layer or multiple layers made of one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof. However, the invention is not limited thereto. Each of the first source 121 and the first drain 124, as well as the second source 131 and the second drain 134, may have a three-layer structure. For example, the first source 121 may be composed of a first layer 121a, a second layer 121b, and a third layer 121c. Each of the other source and drain may have the same structure.

[0089] Storage capacitor 140 may be disposed between first transistor 120 and second transistor 130. For example... Figure 3 As shown, the storage capacitor 140 can be formed by stacking the storage lower electrode 141 and the storage upper electrode 142 while inserting the first lower interlayer insulating film 105 therebetween.

[0090] The storage lower electrode 141 may be located on the lower gate insulating film 104 and may be made of the same material as the first gate 122, and may be formed in the same layer as the layer on which the first gate 122 is disposed. The storage upper electrode 142 may be electrically connected to the pixel circuit via the storage supply line 143. The storage upper electrode 142 may be made of the same material as the light blocking layer 136. The storage upper electrode 142 is exposed to a storage contact hole 144 extending through the second lower interlayer insulating film 106, the upper buffer layer 107, the upper gate insulating layer 137, and the upper interlayer insulating film 108, and is connected to the storage supply line 143. In one example, the storage upper electrode 142 is separated from the light blocking layer 136, such as Figure 3 As shown. Optionally, the storage upper electrode 142 and the light-blocking layer 136 can be formed in a manner that integrates them with each other. The storage supply line 143 can be made of the same material as each of the first source 121 and the first drain 124, as well as the second source 131 and the second drain 134, and can be coplanar with them. For this purpose, the storage supply line 143, the first source 121 and the first drain 124, and the second source 131 and the second drain 134 can be formed simultaneously in the same mask process.

[0091] Inorganic insulating materials such as SiNx or SiOx can be deposited on a substrate 101 on which a first source 121 and a first drain 124, a second source 131 and a second drain 134, and a storage supply line 143 have already been formed. This forms a protective film 109. A first planarization layer 110 can be formed on the substrate 101 on which the protective film 109 has already been formed. Specifically, the first planarization layer 110 can be formed by coating an organic insulating material, such as an acrylic resin, onto the protective film 109 covering the entire substrate 101.

[0092] A protective film 109 and a first planarization layer 110 are formed. Then, a photolithography process can be used to form contact holes for exposing the first source 121 or the first drain 124 of the first transistor 120. A connection electrode 145 can fill the contact hole region for exposing the first drain 124 and can be made of a material made of Mo, Ti, Cu, AlNd, Al, and Cr, or alloys thereof.

[0093] A second planarization layer 111 may be disposed on the connection electrode 145. Contact holes for exposing the connection electrode 145 may be formed in the second planarization layer 111. A light-emitting element 150 connected to the first transistor 120 may be formed on the second planarization layer 111.

[0094] The light-emitting element 150 may include an anode 151 connected to a first drain 124 of the first transistor 120, at least one organic light-emitting stack 152 formed on the anode 151, and a cathode 153 formed on the organic light-emitting stack 152.

[0095] The organic light-emitting stack 152 may include a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer. In a tandem structure where multiple light-emitting layers overlap, a charge generation layer may be additionally disposed between adjacent light-emitting layers. Different colors may be emitted from different sub-pixels within the light-emitting layers. For example, a red light-emitting layer, a green light-emitting layer, and a blue light-emitting layer may constitute different sub-pixels. However, a common light-emitting layer may be formed to emit white light in each sub-pixel, and different color filters corresponding to different colors may be disposed separately. The arrangement may include RGB type (true RGB type) and WOLED (white OLED). The light-emitting layers may be formed individually for each sub-pixel, while the injection layer or transport layer may be set as a common layer and shared by all sub-pixels.

[0096] The anode 151 can be connected to the connecting electrode 145 via a contact hole extending through the second planarization layer 111. The anode 151 can be formed as a multilayer structure including a transparent conductive film and an opaque conductive film with high reflectivity. The transparent conductive film can be made of a material with a relatively high work function value, such as indium tin oxide (ITO) or indium zinc oxide (IZO). The opaque conductive film can be composed of a single layer or multiple layers made of Al, Ag, Cu, Pb, Mo, Ti or alloys thereof. For example, the anode 151 can be formed as a structure in which a transparent conductive film, an opaque conductive film and a transparent conductive film are stacked sequentially, or it can be formed as a structure in which a transparent conductive film and an opaque conductive film are stacked sequentially. The anode 151 can be disposed on the second planarization layer 111, thereby overlapping not only with the light-emitting area defined by the embankment 154, but also with the pixel circuit area in which the first transistor 120, the second transistor 130 and the storage capacitor 140 are disposed. This increases the light-emitting area.

[0097] An organic light-emitting stack 152 can be formed by stacking a hole transport layer, an organic light-emitting layer, and an electron transport layer on the anode 151 in sequence or in reverse order. Optionally, the organic light-emitting stack 152 may include first and second light-emitting stacks with a charge-generating layer interposed therebetween.

[0098] The dam 154 may be formed to expose the anode 151. This dam 154 may be made of an organic material such as photoacrylic, and may be made of a translucent material. However, the invention is not limited thereto; the dam may be made of an opaque material to prevent light interference between sub-pixels.

[0099] The cathode 153 can be formed on the top surface of the organic light-emitting stack 152 and face the anode 151, with the organic light-emitting stack 152 inserted between the cathode 153 and the anode 151. In a top-emitting organic light-emitting display device, the cathode 153 can be made of a transparent conductive film made of indium tin oxide (ITO), indium zinc oxide (IZO), or magnesium silver (Mg-Ag).

[0100] An encapsulation layer 170 for protecting the light-emitting element 150 may be formed on the cathode 153. Due to the properties of the organic material in the organic light-emitting stack 152, the light-emitting element 150 may react with external moisture or oxygen, resulting in dark spots or pixel shrinkage. To solve this problem, an encapsulation layer 170 for protecting the light-emitting element 150 may be formed on the cathode 153. The encapsulation layer 170 may be composed of a stack of a first inorganic insulating film 171, an impurity compensation layer 172, and a second inorganic insulating film 173.

[0101] The touch unit may be disposed on the encapsulation layer 170. The touch unit may include a first touch planarization layer, touch electrodes, and a second touch planarization layer. The first touch planarization layer and the second touch planarization layer can eliminate steps at the location where the touch electrodes are disposed and can perform electrical insulation.

[0102] Figure 4 A cross-sectional view is shown of the constituent layers disposed above and below the display panel 100 in the display module 10. (Refer to...) Figure 4 An apron portion 200 is disposed below a foam-tape 410. The foam-tape 410 may be attached to one side of the apron portion 200. The foam-tape 410, base plate 420, first adhesive layer 510, back plate 430, and second adhesive layer 520 may be sequentially disposed on the apron portion 200. As described above, the apron portion 200 may be configured to allow the display module 10 to bend and unfold uniformly based on a region when the display module 10 bends and unfolds.

[0103] Reference Figure 4 The apron portion 200 can be shaped such that one side of it adjacent to the display panel 100 remains flat or as flat as possible, and the other side can have a trapezoidal shape formed by removing a portion of it. When a portion of the other side of the apron portion 200 is as follows... Figure 4 When the cross-section shown is removed, the display panel 100 can be rolled into a cylindrical shape or can be bent or stretched.

[0104] The foam strip 410 serves to allow the apron portion 200 to maintain a predetermined position or spacing without deformation. A base plate 420 may be disposed on the foam strip 410, and a first adhesive layer 510 may be disposed on the base plate 420. The base plate 420 can absorb tensile and compressive stresses applied to the display panel 100 when the apron portion 200 bends or unfolds.

[0105] The base plate 410 may be made of rigid plastic, for example, and may be made of a lightweight and transparent material such as polyethylene terephthalate (PET).

[0106] The first adhesive layer 510 may include a black dye to block light emitted from the display panel 100. The first adhesive layer 510 with black dye absorbs and blocks light emitted from the display panel 100, and can prevent light from propagating throughout the display module 10 while having an adhesive function.

[0107] The back panel 430, the second adhesive layer 520, and the display panel 100 are attached to each other from the beginning of the manufacturing process of the display panel 100. In other words, the display panel 100 can be manufactured in a state where the second adhesive layer 520 has been attached to the back panel 430 and the substrate 101 has been attached to the second adhesive layer 520.

[0108] The polarizing film 440, the third adhesive layer 530, the glass cover 450 and the protective film 460 can be stacked sequentially on the display panel 100.

[0109] The polarizing film 440 can be configured to prevent external light incident on and reflected from the display panel 100 from being visible to the user. The glass cover 450 can be made of glass or a plastic substrate to protect the display panel 100. The glass cover 450 can be made primarily of glass. With technological advancements, foldable or bendable glass substrates have been developed and applied in various ways.

[0110] The protective film 460 protects the display panel 100 and the glass cover 450. For example, when the display panel 100 or the glass cover 450 is damaged by an external impact, the resulting fragments can spread and cause injury to the user. To prevent the spread of fragments from the display panel 100 or the glass cover 450, the protective film 460 can first absorb the shock, and secondly, it can have adhesiveness and durability to hold the fragments in place, thereby preventing the spread of fragments.

[0111] Figure 5 This is a plan view showing the assembly plane of the apron section 200. (Refer to...) Figure 5 The bottom apron 230 and the top apron 220 can respectively form the top and bottom of the apron, while the connecting apron 210 can be disposed between the bottom apron 230 and the top apron 220.

[0112] At least a portion of the connecting apron portion 210 may have a trapezoidal cross section, such that the display panel 100 may be partially folded when the display panel 100 is bent or unfolded.

[0113] Figure 6 A clamp for assembling the apron section 200 is shown. (See reference) Figure 6 , set for assembly Figure 5 The frame of the apron section 200 is provided. The bottom apron section 230 and the top apron section 220 can be respectively disposed on the upper and lower parts of the clamp. A fixing frame can fix a plurality of connecting apron sections 210 having a bar shape. The connecting apron sections 210 can be constructed such that the plurality of apron pieces are arranged spaced apart from each other by a predetermined distance. Therefore, a fixing frame capable of aligning the plurality of apron pieces with each other is required.

[0114] To assemble the apron part 200, it is possible to... Figure 6 Each apron section is mounted on a fixture, and foam tape 410 can be attached to the top of the assembled apron section 200. This completes the first assembly of the apron section 200. However, even if the apron section 200 is properly aligned with the fixture during actual operation, the apron sections may become misaligned during the attachment of foam tape 410 or due to operator error. Therefore, an assembly process without fixtures is required when assembling the apron section 200.

[0115] At least a portion of the apron portion 200 is flexible. In this regard, a gap-retaining device may be provided at the flexible or bent portion of the apron portion 200. The bent portion of the apron portion 200 may be divided into multiple segments. When the apron portion bends, the spacing between adjacent segments of the multiple segments may increase or decrease. The gap-retaining device may be provided at the location where adjacent segments of the multiple segments connect to each other. The gap-retaining device may include a gap-retaining hole 211 and a gap-retaining pin 212 (see...). Figure 7A ).

[0116] Figure 7A and Figure 7B This is a cross-sectional view according to an embodiment of the present invention, which shows Figure 5 Section II-II'. (Refer to...) Figure 7A Multiple connecting apron portions 210 are arranged continuously. A foam strip 410 is provided on the top of the connecting apron portion 210. In a cross-sectional view of the connecting apron portion 210, a gap retaining hole 211 may be formed on one side, while a gap retaining pin 212 may be formed on the other side.

[0117] Reference Figure 7AA clearance retaining hole 211 is formed in the inward direction of the connecting apron portion 210 to provide space for accommodating the clearance retaining pin 212. Due to the clearance retaining hole 211 and the clearance retaining pin 212 connecting the apron portion 210, the apron portion 200 can be assembled with a predetermined clearance without the need for a separate apron portion assembly fixture. The clearance retaining pin 212 can be manufactured to have a predetermined length and a predetermined vertical dimension. The clearance retaining hole 211 can be formed to have a predetermined length smaller than the length of the clearance retaining pin 212. The vertical dimension of the clearance retaining hole 211 can be larger than the vertical dimension of the clearance retaining pin 212.

[0118] Since the vertical dimension of the clearance retaining hole 211 is equal to or greater than the vertical dimension of the clearance retaining pin 212, the clearance retaining pin 212 can easily enter the clearance retaining hole 211. Because the clearance retaining hole 211 is shorter than the clearance retaining pin 212, a predetermined clearance can be maintained. Therefore, the connecting apron portion 210 can be assembled without the need for a separate clamp.

[0119] The clearance retaining hole 211 may have an internal curved surface. From Figure 7A and Figure 7B It can be seen that curved surfaces can be bent at obtuse angles.

[0120] Figure 7A This is a cross-section of the apron section 200 in a flat state when the display module 10 is unfolded, and Figure 7B This is a cross-section of the apron 200 in a bent state while the display module 10 is bent.

[0121] Reference Figure 7B As can be seen, the connecting apron portion 210 is bent at a predetermined angle. The bending angle of the connecting apron portion 210 can be determined based on the gap retaining hole 211 and the gap retaining pin 212. In particular, the bending angle of the connecting apron portion 210 can be determined based on the angle of the bending surface of the gap retaining hole 211 as described above, and the length and thickness of the corresponding gap retaining pin 212.

[0122] The foam strip 410 provided on the top of the connecting apron part 210 can prevent the gap of the connecting apron part 210 from increasing when the apron part bends.

[0123] Figure 8A and Figure 8B This is a cross-sectional view according to another embodiment of the present invention, which shows Figure 5 Section II-II'. (Refer to...) Figure 8AMultiple connecting apron portions 210 are arranged continuously. A foam strip 410 is provided on the top of the connecting apron portion 210. In a cross-sectional view of the connecting apron portion 210, a gap retaining hole 211 may be formed on one side, while a gap retaining pin 212 may be formed on the other side. (Refer to...) Figure 8A A clearance retaining hole 211 is formed in the inward direction of the connecting apron portion 210 to provide space for receiving a clearance retaining pin 212. Due to the clearance retaining hole 211 and the clearance retaining pin 212 connecting the apron portion 210, the apron portion 200 can be assembled with a predetermined clearance without the need for a separate apron portion assembly fixture. The clearance retaining hole 211 may have an internally curved surface. Figure 8A and Figure 8B It can be seen that curved surfaces can be bent at obtuse angles. Unlike... Figure 7A and Figure 7B ,exist Figure 8A and Figure 8B In the gap retaining hole 211, a portion of the curved surface can be straight, while another portion can be circular. The curved surface bends at a position between the straight portion and the curved portion.

[0124] The clearance retaining pin 212 may include a clearance retaining extension 213 and a clearance retaining head 214. The clearance retaining head 214 may be elliptical. The clearance retaining head 214 may enter the clearance retaining hole along the curved surface of the clearance retaining hole 211, for example, into a circular hole.

[0125] Reference Figure 8A A clearance retaining hole 211 is formed in the inward direction of the connecting apron portion 210 to provide space for accommodating the clearance retaining pin 212. Due to the clearance retaining hole 211 and the clearance retaining pin 212 connecting the apron portion 210, the apron portion 200 can be assembled with a predetermined clearance without the need for a separate apron portion assembly fixture. The clearance retaining head 214 of the clearance retaining pin 212 can be formed as an ellipse with a predetermined length and a predetermined vertical dimension. The clearance retaining hole 211 can be formed as a circular hole with a predetermined length. The length of the clearance retaining hole 211 can be less than or equal to the length of the clearance retaining pin 212, and the vertical dimension of the clearance retaining hole 211 can be greater than the vertical dimension of the clearance retaining pin 212. In particular, the vertical dimension of the curved portion of the clearance retaining hole 212 can be greater than or equal to the vertical dimension of the clearance retaining head 214 of the clearance retaining pin 212.

[0126] The vertical dimension of the curved portion of the clearance retaining hole 211 is equal to or slightly larger than the vertical dimension of the clearance retaining head 214 of the clearance retaining pin 212, thereby allowing the clearance retaining pin 212 to enter the clearance retaining hole 211. Since the clearance retaining hole 211 is shorter than the clearance retaining pin 212, a predetermined clearance can be maintained. Therefore, the connecting apron portion 210 can be assembled without the need for a separate clamp.

[0127] Figure 8A This is a cross-section of the apron section 200 in a flat state when the display module 10 is unfolded, and Figure 8B This is a cross-section of the apron 200 in a bent state while the display module 10 is bent.

[0128] Reference Figure 8B As can be seen, the connecting apron portion 210 is bent at a predetermined angle. The bending angle of the connecting apron portion 210 can be determined based on the gap retaining hole 211 and the gap retaining pin 212. In particular, the bending angle of the connecting apron portion 210 can be determined based on the angle of the bent surface of the gap retaining hole 211 as described above, and the length and thickness of the corresponding gap retaining pin 212. The vertical dimension of the bent portion of the gap retaining hole 211 is equal to or slightly larger than the vertical dimension of the gap retaining head 214 of the gap retaining pin 212, so that the gap retaining head 214 will not easily detach from the gap retaining hole 211.

[0129] Figure 9 This is a plan view showing the planar structure of the connecting apron portion 210 according to an embodiment of the present invention. (Refer to...) Figure 9 As can be seen, the connecting apron portion 210 has two gap retaining pins 212 and two corresponding gap retaining holes 211 at two locations. Although the gap retaining pins 212 are shown as strips, the invention is not limited thereto. A variety of... Figure 8A and Figure 8B The elliptical head shown has a gap retaining pin 212. Similarly, the gap retaining hole 211 is shown as a strip. However, the invention is not limited thereto, and may employ a design with... Figure 8A and Figure 8B The elliptical hole shown has a gap retaining hole 211.

[0130] Furthermore, each of the top apron portion 220 and the bottom apron portion 230 may have at least one gap retaining pin 212 and at least one gap retaining hole 211. Thus, each of the top apron portion 220 and the bottom apron portion 230 may be connected to the connecting apron portion 210 via the gap retaining pin 212 and the gap retaining hole 211. The connecting apron portion 210 may include a plurality of gap retaining pins 212 and a plurality of gap retaining holes 211. For example, a gap retaining pin 212 may be provided at the top apron portion 220, thereby connecting to the gap retaining hole 211 of the connecting apron portion 210. A gap retaining hole 211 may be formed in the bottom apron portion 230, thereby connecting the gap retaining pin 212 of the connecting apron portion 210 thereto.

[0131] Figure 10A This is a cross-sectional view of a display device according to an embodiment. Figure 10B It is based on Figure 10A A side sectional view of the display device according to an embodiment. Figure 10CIt is shown Figure 10B A view of the state in which a portion of each of the display panel 100 and the apron 200 is housed within the housing 20.

[0132] The display device according to the embodiment may include a display module 10, a housing 20, a rolling guide 30, a guide 40, and a motor 50. The display module 10 is the same as described above.

[0133] The housing 20 may accommodate at least a portion of the display module 10. For example, the housing 20 may be built into the dashboard of a vehicle. In this regard, each of the display panel 100 and the apron 200 may be constructed such that at least a portion of it is exposed outside the dashboard. In one example, the area dimensions of the display panel 100 and the apron 200 housed in the housing 20 may be different from each other.

[0134] Reference Figure 10A and Figure 10B When the display panel 100 and the apron 200 move upward, the portion of them that was previously housed within the housing 20 in its bent state is unfolded again to expose the exterior of the housing 20. Thus, the user can view images or videos reproduced on the unfolded portion of the display panel 100.

[0135] Reference Figure 10C When the display panel 100 and the apron 200 move downward, when viewed from the side, at least a portion of the display panel 100 and at least a portion of the apron 200 bend and deform into a curved shape so as to be accommodated in the housing 20.

[0136] The guide roller 30 may be housed in the housing 20 and may be configured to rotate relative to the housing 20. The guide roller 30 may be configured such that the display module 10 is mounted thereon, and at least a portion of each of the display panel 100 and the apron portion 200 is wound around the guide roller.

[0137] One end of the guide 40 is mounted on the apron 200, and the other end is mounted on the housing 20. The guide 40 can move the display panel 100 and the apron 200 in a first direction to change the area of ​​the display panel 100 and the apron 200 exposed from the housing.

[0138] The guide 40 may include a bracket 700, a movable portion 44, and a reinforcing plate 45. The bracket 700 may include a first bracket 41, a second bracket 42, and a third bracket 43. The first bracket 41 may engage with the apron portion 200 and move together with the apron portion 200. The first bracket 41 may be strip-shaped and may have a length direction parallel to the second direction, and may engage with the top of the rear of the apron portion 200.

[0139] The first support 41 is configured to move up and down together with the display device. As the first support 41 moves up and down, the apron portion 200 and the display panel 100 that are engaged with it also move up and down, thereby changing the exposed area.

[0140] The second bracket 42 can be engaged with the housing 20. The second bracket 42 may be strip-shaped, having a length direction parallel to the second direction, and can be engaged with the housing 20. The housing 20 can support the second bracket 42.

[0141] The third bracket 43 may be formed to protrude upward from the second bracket 42. The third bracket 43 may be implemented as a pair, wherein the third bracket 43 may be arranged to be spaced apart from each other by a predetermined distance in a second direction. A hollow portion for mounting the movable part 44 may be formed in the third bracket 43.

[0142] The guide 40 may further include a reinforcing plate 45. The reinforcing plate 45 is disposed between and engaged with a pair of spaced-apart third supports 43. Thus, the reinforcing plate 45 can be used to maintain a designed separation distance between the pair of third supports 43. The reinforcing plate 45 may be formed in a plate shape and may be integrally formed with the pair of third supports 43. However, the reinforcing plate 45 is not an essential component of the display device.

[0143] In one example, the second support 42, the third support 43, and the reinforcing plate 45 may be integrally manufactured together. However, the invention is not limited thereto.

[0144] The movable part 44 may be configured such that one end is engaged with the first bracket 41 and inserted into the third bracket 43 so as to be movable relative to the third bracket 43 in a first direction. The movable part 44 may be inserted into the hollow of the third bracket 43 so as to move up and down relative to the third bracket 43.

[0145] Accordingly, as the movable part 44 moves up and down, the first support 41, the apron part 200 connected thereto, and the display panel 100 connected to the apron part 200 move up and down, so the exposed area of ​​the apron part 200 and the display panel 100 can be changed.

[0146] The movable part 44 can support the display panel 100 and the apron part 200, thereby keeping the exposed portions of the display panel 100 and the apron part 200 in a linear state while the display panel 100 and the apron part 200 are raised and lowered.

[0147] The motor 50 can be configured to allow the movable part to move the display panel 100 and the apron 200 up and down. Furthermore, the movable part 44 can rise and fall under the operation of the motor 50. The motor 50 can be coupled to the housing 20, and its rotation axis can be coupled to the guide roller 30.

[0148] When the motor 50 rotates, the guide roller 30 rotates, and accordingly, the display panel 100 and the apron 200 can be wound or unfolded around the guide roller 30.

[0149] Reference Figure 10B When the motor 50 rotates in the direction in which the display panel 100 and the apron 200 unfold from the guide roller 30, the top of each of the display panel 100 and the apron 200 moves upward, thereby increasing their exposed area. At this time, the movable part 44 engaged with the apron 200 can move upward.

[0150] Reference Figure 10C When the motor 50 rotates in the direction in which the display panel 100 and the apron 200 are wound around the guide roller 30, the top of each of the display panel 100 and the apron 200 drops, thereby reducing their exposed area. At this time, the movable part 44 engaged with the apron 200 can move downward.

[0151] The guide roller 30 will be described in more detail below. The guide roller 30 may include a curved portion 31, a bridging portion 32, and a rib 33. The display panel 100 and the skirt portion 200 may be wound around the outer circumferential surface of the curved portion 31. The curved portion 31 may be formed as an arc, for example.

[0152] The curved portions 31 can be implemented as a pair, wherein the two curved portions are separated from each other in a second direction of the display panel 100. In this regard, ribs 33 can be provided between the pair of curved portions 31.

[0153] As the motor 50 operates and thus rotates the guide roller 30, the area of ​​each of the display panel 100 and the apron 200 wound around the curved portion 31 can be varied. For example... Figure 10B As shown, when the top of each of the display panel 100 and the apron 200 reaches the highest vertical level of the design and thus fully unfolds the display panel 100, the area of ​​each of the display panel 100 and the apron 200 wrapped around the curved portion 31 may be non-existent or very small.

[0154] On the contrary, such as Figure 10C As shown, when the guide roller 30 rotates and thus brings the top of each of the display panel 100 and the apron 200 to the lowest designed vertical level, the area of ​​each of the display panel 100 and the apron 200 wrapped around the bend 31 can be maximized.

[0155] The bridging portion 33 can connect the two ends of the bent portion 31 to each other. Like the bent portion 31, the bridging portions 32 can be implemented as a pair. The bent portion 31 and the bridging portions 32 can be integrally formed together. The invention is not limited thereto. The bridging portions 32 can be approximately formed in a plate shape, and the two ends of the rib 33 can be respectively joined to a pair of bridging portions 32.

[0156] Rib 33 can be joined to bridge portion 32. Printed circuit board 300 and bracket portion 700 can be mounted on rib. Rib can be joined to the bottom of apron portion 200. Rib 33 can be formed into a generally plate-like shape.

[0157] The seat plate 411 of the support portion 700 can be joined to one side of the rib 33 via a coupling mechanism such as bolts. According to an embodiment, each of the first substrate 310 and the second substrate 320 of the printed circuit board 300, and the seat plate 411 of the support portion 700 on which the first substrate 310 and the second substrate 320 of the printed circuit board 300 are mounted, can have a length direction parallel to a second direction of the display panel 100.

[0158] Therefore, the rib 33 can be formed to have a length direction parallel to the second direction, i.e., the transverse direction of the display panel 100, thereby having a shape corresponding to the shape of the base plate 411 of the support portion 700. Due to this structure, the guide roller 30 can provide sufficient space for the first substrate 310 and the second substrate 320 in which the printed circuit board 300 is placed.

[0159] The support portion 700, on which the first substrate 310 and the second substrate 320 are mounted, can be attached to the rib 33. The first substrate 310 and the second substrate 320 can be joined to the support portion 700, and in this state, they can be mounted on the rib 33, thereby rotating together with the rotation of the guide roller 30.

[0160] Figure 11 This is a view showing the state in which a display device according to an embodiment of the present invention is placed inside a vehicle. The display device can be placed at the top center of a center fascia. The display device can be rolled up and stored in the housing 20 in parking mode. The display device can be rolled out of the housing 20 in start-up or drive mode.

[0161] The display device according to embodiments of the present invention can be described as follows.

[0162] A first aspect of the present invention provides a display device comprising: a display panel configured such that at least a portion thereof is deformable; an apron portion for supporting the display panel; and a printed circuit board electrically connected to the display panel, wherein at least a portion thereof is flexible, and wherein the apron portion includes a gap retaining device disposed at its flexible portion.

[0163] In one embodiment of the first aspect, the apron portion includes a top apron portion disposed at the top of the display panel, a connecting apron portion disposed in the middle region of the display panel, and a bottom apron portion disposed at the bottom of the display panel.

[0164] In one embodiment of the first aspect, the top apron, the connecting apron, and the bottom apron are connected to each other.

[0165] In one embodiment of the first aspect, the gap retaining device includes gap retaining pins and gap retaining holes, wherein the connecting apron portion includes a plurality of gap retaining pins and a plurality of gap retaining holes.

[0166] In one embodiment of the first aspect, the display device further includes a foam strip, a base plate, and a back plate, wherein the foam strip, the base plate, and the back plate are disposed between the display panel and the apron portion.

[0167] In one embodiment of the first aspect, the foam strip is attached to one side of the apron portion.

[0168] In one embodiment of the first aspect, at least a portion of the connecting apron portion has a trapezoidal cross-section.

[0169] In one embodiment of the first aspect, each of the bottom apron and the top apron includes at least one gap retaining pin and at least one gap retaining hole.

[0170] A second aspect of the present invention provides a display device, comprising: a display panel; a back plate, a base plate, and an apron portion for supporting the display panel; and a foam strip disposed between the base plate and the apron portion, wherein at least a portion of the apron portion is flexible, and wherein the apron portion includes a gap retaining device disposed at its flexible portion.

[0171] In one embodiment of the second aspect, the apron portion includes a top apron portion disposed at the top of the display panel, a connecting apron portion disposed in the middle region of the display panel, and a bottom apron portion disposed at the bottom of the display panel.

[0172] In one embodiment of the second aspect, the top apron, the connecting apron, and the bottom apron are connected to each other.

[0173] In one embodiment of the second aspect, the gap retaining device includes gap retaining pins and gap retaining holes, wherein the connecting apron portion includes a plurality of gap retaining pins and a plurality of gap retaining holes.

[0174] In one embodiment of the second aspect, the foam strip is attached to one side of the apron portion.

[0175] In one embodiment of the second aspect, at least a portion of the connecting apron portion has a trapezoidal cross-section.

[0176] In one embodiment of the second aspect, each of the bottom apron and the top apron includes at least one gap retaining pin and at least one gap retaining hole.

[0177] The features, structures, effects, etc., described in the examples of this application above are included in at least one example of this application, but are not limited to only one example. Furthermore, the features, structures, effects, etc., shown in at least one example of the invention can be combined or modified by those skilled in the art relative to other examples. Therefore, such combinations and modifications should be interpreted as being included within the scope of this invention.

[0178] The present invention is not limited to the embodiments and drawings described above. It will be apparent to those skilled in the art that modifications and variations can be made within the scope of the invention without departing from its technical spirit. Therefore, the scope of the invention is defined by the appended claims, and all variations or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included within the scope of the invention.

Claims

1. A display device, comprising: Display panel, wherein at least a portion of the display panel is deformable; Apron portion for supporting the display panel; The base plate is disposed between the display panel and the apron section; A foam strip disposed between the base plate and the apron portion; and The printed circuit board electrically connected to the display panel, At least a portion of the apron portion is flexible, and the apron portion includes a gap-retaining device disposed at its flexible portion. The gap retaining device includes a gap retaining pin and a gap retaining hole, wherein the gap retaining hole has a length smaller than the length of the gap retaining pin, and The gap retaining hole has an internal curved surface, and the curvature angle of the apron portion is determined at least based on the angle of the curved surface of the gap retaining hole. The foam strip is continuously disposed on one side of the apron.

2. The display device according to claim 1, wherein the apron portion includes a top apron portion disposed at the top of the display panel, a connecting apron portion disposed in the middle region of the display panel, and a bottom apron portion disposed at the bottom of the display panel.

3. The display device according to claim 2, wherein the top apron, the connecting apron, and the bottom apron are connected to each other.

4. The display device according to claim 3, wherein the connecting apron portion includes a plurality of gap retaining pins and a plurality of gap retaining holes.

5. The display device according to claim 1 further includes a back plate, wherein the back plate is disposed between the display panel and the base plate.

6. The display device according to claim 5, wherein the foam strip is attached to one side of the apron portion.

7. The display device according to claim 2, wherein at least a portion of the connecting apron portion has a trapezoidal cross-section.

8. The display device according to claim 4, wherein each of the bottom skirt portion and the top skirt portion includes at least one gap retaining pin and at least one gap retaining hole.

9. The display device of claim 1, wherein the cross-section of the apron portion is shaped such that one side of the apron portion adjacent to the display panel remains flat, and the other side of the apron portion has a trapezoidal shape formed by removing a portion.

10. The display device according to claim 4, wherein the vertical dimension of the gap retaining hole is greater than the vertical dimension of the gap retaining pin.

11. The display device of claim 4, wherein the curved surface is curved at an obtuse angle.

12. The display device of claim 11, wherein the gap retaining pin includes a gap retaining extension and an elliptical gap retaining head, wherein the gap retaining head enters the gap retaining hole along a curved surface of the gap retaining hole.

13. The display device according to claim 12, wherein the vertical dimension of the curved portion of the gap retaining hole is greater than or equal to the vertical dimension of the gap retaining head.

14. A display device, comprising: Display panel; The back plate, bottom plate, and skirt portion are used to support the display panel; as well as A foam strip is disposed between the base plate and the apron section. At least a portion of the apron portion is flexible, and the apron portion includes a gap-retaining device disposed at its flexible portion. The gap retaining device includes a gap retaining pin and a gap retaining hole, wherein the gap retaining hole has a length smaller than the length of the gap retaining pin, and The gap retaining hole has an internal curved surface, and the curvature angle of the apron portion is determined at least based on the angle of the curved surface of the gap retaining hole. The foam strip is continuously disposed on one side of the apron.

15. The display device according to claim 14, wherein the apron portion includes a top apron portion disposed at the top of the display panel, a connecting apron portion disposed in the middle region of the display panel, and a bottom apron portion disposed at the bottom of the display panel.

16. The display device of claim 15, wherein the top apron, the connecting apron, and the bottom apron are connected to each other.

17. The display device of claim 16, wherein the connecting apron portion includes a plurality of gap retaining pins and a plurality of gap retaining holes.

18. The display device of claim 14, wherein the foam strip is attached to one side of the apron portion.

19. The display device of claim 15, wherein at least a portion of the connecting apron portion has a trapezoidal cross-section.

20. The display device of claim 17, wherein each of the bottom skirt portion and the top skirt portion includes at least one gap retaining pin and at least one gap retaining hole.

21. The display device of claim 15, wherein the foam strip is disposed on the top of the connecting apron portion.

22. The display device of claim 14, wherein the cross-section of the apron portion is shaped such that one side of the apron portion adjacent to the display panel remains flat, and the other side of the apron portion has a trapezoidal shape formed by removing a portion.

23. The display device according to claim 17, wherein the vertical dimension of the gap retaining hole is greater than the vertical dimension of the gap retaining pin.

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