Display device

Abstract

A display device includes a display module having a first area and a second area, the second area extending from the first area in a first direction, a portion of the second area being folded to be disposed under the first area; an extension module disposed between the first area and the second area disposed under the first area; and a plurality of support bars disposed on a rear surface of the second area. The extension module includes a plurality of fixing plates disposed under the first area, and a guide portion having a first portion and a second portion, at least a portion of the first portion being disposed between the plurality of fixing plates under the first area, at least a portion of the second portion being disposed between the rear surface of the second area and an upper surface of the plurality of support bars, wherein a center of the plurality of support bars overlaps the second portion.

Description

Technical Field

[0001] The present invention relates to display devices, and more particularly, to display devices having improved surface quality. Background Technology

[0002] Generally, electronic devices that provide images to users (such as smartphones, digital cameras, laptops, navigation systems, and smart TVs) include display devices for displaying images. The display device generates the image and provides it to the user through the screen.

[0003] Recently, with the technological advancements in display devices, various types of display devices have been developed. For example, flexible display devices that can extend to the outside of a housing by sliding or unfolding have been developed. Flexible display devices that can transform into various shapes are easy to carry, thereby improving user convenience. Summary of the Invention Technical issues

[0004] The present invention provides a display device with improved surface quality. Technical solution

[0005] An embodiment of the present invention provides a display device comprising: a display module having a first region and a second region, the second region extending from the first region along a first direction, and a portion of the second region being folded to be disposed below the first region; an extension module disposed between the first region and the second region disposed below the first region; and a plurality of support bars disposed on the rear surface of the second region, wherein the extension module comprises: a plurality of fixing plates disposed below the first region; and a guide portion having a first portion and a second portion, at least a portion of the first portion being disposed below the first region between the plurality of fixing plates, and at least a portion of the second portion being disposed between the rear surface of the second region and the upper surfaces of the plurality of support bars, wherein the centers of the plurality of support bars overlap with the second portion.

[0006] An embodiment of the present invention provides a display device comprising: a display module having a first region and a second region, the second region extending from the first region along a first direction, a portion of the second region being folded to be disposed below the first region; an extension module disposed between the first region and the second region; and a plurality of support bars, at least some of the plurality of support bars being disposed below the second region, wherein a plurality of guide grooves are defined in the upper surfaces of the plurality of support bars, the upper surfaces of the plurality of support bars facing the rear surface of the second region, wherein the extension module comprises: a guide portion disposed in the guide groove, and at least a portion of the guide portion having a curved shape; and a plurality of fixing plates disposed on opposite sides of the guide portion in a second direction intersecting the first direction, below the first region, wherein the plurality of support bars move along the guide portion. Beneficial effects

[0007] According to an embodiment, the centers of the plurality of support bars can move along the guide portion. Accordingly, the centers of the support bars will not deform, and wrinkles can be prevented from occurring in the display module disposed on the support bars. Therefore, the surface quality of the display device can be improved. Attached Figure Description

[0008] Figure 1a This is a perspective view of a display device in an inserted state according to an embodiment.

[0009] Figure 1b This is an example based on an embodiment. Figure 1a The example in the image shows a perspective view of the display device in its unfolded state.

[0010] Figure 2a This is an exploded perspective view of a display device in an inserted state according to an embodiment.

[0011] Figure 2b This is an exploded perspective view of a display device in an unfolded state according to an embodiment.

[0012] Figure 3 This is an example based on an embodiment. Figure 2a The example shows an exploded perspective view of the display components.

[0013] Figure 4 According to the embodiments Figure 3 The image shows a cross-sectional view of the display module.

[0014] Figure 5 According to the embodiments Figure 4 The image shows a cross-sectional view of the display panel.

[0015] Figure 6a This is an example based on an embodiment. Figure 3The example in the middle is a perspective view of the unfolded state of the lower panel.

[0016] Figure 6b This is an example according to an embodiment. Figure 6a The image shows a perspective view of one of the support bars.

[0017] Figure 7 According to the embodiments Figure 2a An exploded perspective view of the housing and extension modules illustrated in the image.

[0018] Figure 8 According to the embodiments Figure 7 A perspective view of the guide section shown in the image.

[0019] Figure 9a It is according to the embodiment along Figure 7 A cross-sectional view of the pressurized section taken from line I-I'.

[0020] Figure 9b An example of the connection between the pressurizing part and the guiding part according to an embodiment is shown.

[0021] Figure 10 This is a perspective view illustrating the connection between the rotating part and the pressurizing part PP according to an embodiment.

[0022] Figure 11 This is a perspective view illustrating the connection between the guide section and the movable plate according to an embodiment.

[0023] Figure 12a According to the embodiments Figure 7 The example shows a perspective view of the fixing plate.

[0024] Figure 12b This is a perspective view illustrating the connection between the first fixing part and the fixing plate, and the connection between the second fixing part and the nut part, according to an embodiment.

[0025] Figure 12c This is a perspective view illustrating the connection between the fixing plate and the guide portion according to an embodiment.

[0026] Figure 13a This is a perspective view illustrating the movement of the support bar according to an embodiment.

[0027] Figure 13b This is a perspective view illustrating the movement of the support bar according to an embodiment.

[0028] Figure 13c This is a perspective view illustrating the movement of the support bar according to an embodiment.

[0029] Figure 14a It is according to the embodiment along Figure 13a The cross-sectional view taken from line II-II' in the diagram.

[0030] Figure 14b It is according to the embodiment along Figure 13c The cross-sectional view taken from line IV-VI' in the diagram.

[0031] Figure 15a It is according to the embodiment along Figure 13a The cross-sectional view taken from line III-III' in the diagram.

[0032] Figure 15b It is according to the embodiment along Figure 13c The cross-sectional view taken from line V-V' in the diagram. Detailed Implementation

[0033] In this specification, it will be understood that when an element (or area, layer, part, etc.) is referred to as being "on" another element or layer, "connected to" or "attached to" another element, the element may be directly disposed on / directly connected to / directly attached to the other element, or a third element may be present.

[0034] Throughout this specification, the same reference numerals or symbols refer to the same elements. Additionally, for the purposes of the drawings, the thickness, ratios, and dimensions of elements are exaggerated for the purpose of effectively illustrating the technical content. As used herein, the term "and / or" includes any and all combinations of one or more of the related listed items.

[0035] Terms such as "first" and "second" may be used to describe various components, but these components should not be limited by these terms. These terms are used only for the purpose of distinguishing one component from others. For example, without departing from the scope of the invention, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component. Unless the context clearly indicates otherwise, singular expressions include plural expressions.

[0036] Terms such as "below," "down," "above," and "up" are used to illustrate the relationships between components in the accompanying drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0037] It will be further understood that the terms “comprising” and / or “including” as used in this specification specify the presence of the stated features, integers, steps, operations, elements and / or components, but do not exclude the presence and / or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0038] 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 this invention pertains. It will be further understood that terms (such as those defined in commonly used dictionaries) shall be interpreted as having a meaning consistent with their meaning in the context of the relevant field, and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0039] In the following description, embodiments of the invention will be described with reference to the accompanying drawings.

[0040] Figure 1a This is a perspective view of a display device in an inserted state according to an embodiment. Figure 1b This is an example based on an embodiment. Figure 1a The example in the image shows a perspective view of the display device in its unfolded state.

[0041] refer to Figure 1a The display device DD may include a display component PCR and a housing CS therein housing the display component PCR. The display component PCR may include a display module DM, wherein the display module DM may be exposed to the outside through an opening OP defined in the upper part of the housing CS.

[0042] The housing CS may include a main housing MCS and a movable housing MVS, wherein the main housing MCS and the movable housing MVS can be coupled to each other to accommodate the display component PCR. The movable housing MVS may be coupled to the main housing MCS for movement in a first direction DR1.

[0043] In the following text, a direction intersecting the first direction DR1 can be defined as the second direction DR2. A direction that intersects substantially perpendicularly with the plane defined by the first direction DR1 and the second direction DR2 can be defined as the third direction DR3. In this specification, the phrase "when viewed from a plane" can mean "the state of being viewed from the third direction DR3".

[0044] like Figure 1a As shown, the area of ​​the display surface of the display component PCR exposed to the outside when the moving housing MVS is closest to the main housing MCS can be set to a minimum area. This state of the display device DD can be defined as the insertion state.

[0045] In one embodiment, the area of ​​the display module DM exposed to the exterior of the housing CS can be adjusted depending on the movement of the movable housing MVS. For example, the movable housing MVS can move in a first direction DR1 due to an external force applied by the user. Figure 1b As illustrated, the area of ​​the display module DM exposed to the outside can be increased according to the movement of the movable housing MVS, and the user can view the image through a larger screen.

[0046] In one embodiment and as Figure 1b As illustrated in the example, the area of ​​the PCR component exposed to the outside becomes larger than... Figure 1a The state of a large-area display device DD in the insertion state can be defined as the unfolded state.

[0047] Although not illustrated, in insertion mode, the portion of the display module DM that is not exposed to the outside can be located inside the housing CS, except for the portion exposed by the opening OP.

[0048] Figure 2a and Figure 2b This is an exploded perspective view of a display device according to an embodiment.

[0049] As an example, Figure 2a The illustration shows the display component PCR, housing CS, and extension module EMD in an inserted state according to an embodiment, and... Figure 2b An example is shown of the display component PCR, housing CS, and extension module EMD in the unfolded state according to an embodiment.

[0050] refer to Figure 2a and Figure 2b The main housing MCS may include a first bottom BP1, a plurality of first sidewall portions SW1, and a first partition wall BW1. The first bottom BP1 may be oriented parallel to a plane defined by a first direction DR1 and a second direction DR2. In one embodiment, the main housing MCS may be configured to accommodate a display module DM (see...). Figure 1a ) and extension module EMD.

[0051] The first sidewall portion SW1 can extend from the two sides of the first bottom BP1 that are disposed opposite each other in the second direction DR2 along the third direction DR3. Each of the first sidewall portions SW1 may have a flat surface defined by the first direction DR1 and the third direction DR3, and may extend longer in the first direction DR1 than in the third direction DR3. The first sidewall portions SW1 facing each other may be symmetrical to each other in the second direction DR2.

[0052] The first partition wall BW1 can extend from one of the two opposing sides of the main housing MCS in the first direction DR1 along the third direction DR3. The first partition wall BW1 can be disposed between the first sidewall portions SW1. The first partition wall BW1 can have a flat surface defined by the second direction DR2 and the third direction DR3, and can extend longer in the second direction DR2 than in the third direction DR3. The side of the two opposing sides of the main housing MCS in the first direction DR1 can be defined as the side disposed away from the moving housing MVS.

[0053] In one embodiment, the movable housing MVS may include a second bottom BP2, a plurality of second sidewall portions SW2, and a second partition wall BW2. The second bottom BP2 may have a flat surface defined by a first direction DR1 and a second direction DR2. The second bottom BP2 may be disposed on the first bottom BP1.

[0054] The second sidewall portion SW2 can extend from the two sides of the second bottom portion BP2 that are disposed opposite to each other in the second direction DR2 along the third direction DR3. Each of the second sidewall portions SW2 may have a flat surface defined by the first direction DR1 and the third direction DR3, and may extend longer in the first direction DR1 than in the third direction DR3. The second sidewall portions SW2 facing each other may be symmetrical to each other in the second direction DR2.

[0055] The second sidewall portion SW2 can be disposed between the first sidewall portions SW1 facing each other. The second sidewall portion SW2 can move along the inner surfaces of the first sidewall portions SW1 facing each other in the first direction DR1.

[0056] The second partition wall BW2 can extend from one of the two sides of the movable housing MVS that are opposite each other in the first direction DR1 along the third direction DR3. The second partition wall BW2 can be disposed between the second sidewall portions SW2. The second partition wall BW2 can extend longer in the second direction DR2 than in the third direction DR3. The side of the movable housing MVS that is opposite each other in the first direction DR1 can be defined as the side that is disposed away from the main housing MCS.

[0057] In one embodiment, the display device DD may include an extension module EMD, which may be housed inside a housing CS. The extension module EMD may be coupled to the housing CS and may be unfolded or folded in a first direction DR1. The extension module EMD may include a drive unit DU, a pressure unit PP, a roller ROL, a guide unit GP, and a plurality of fixing plates FPL. The extension module EMD will be described in detail later.

[0058] In one embodiment, when the extension module EMD is deployed, the movable housing MVS connected to the extension module EMD can move along the first direction DR1. When the movable housing MVS moves along the first direction DR1, the area of ​​overlap between the second bottom BP2 and the first bottom BP1 can be variable. In the deployed state, the area of ​​overlap between the second bottom BP2 and the first bottom BP1 can be the minimum area. In the inserted state, the area of ​​overlap between the second bottom BP2 and the first bottom BP1 can be the maximum area.

[0059] Figure 3 This is an example based on an embodiment. Figure 2a The example in the image shows a perspective view of the display components.

[0060] As an example, Figure 3 Example: When the display device DD (see...) Figure 1a The PCR display component is in the insertion state.

[0061] refer to Figure 3 The display component PCR may include a display module DM, an upper plate UTP, and a lower plate LTP. The display module DM may include a first region DFP and a second region DEP extending from the first region DFP along a first direction DR1.

[0062] Regardless of the display device being in Figure 1a The insertion state is still in Figure 1b In the unfolded state, the first zone DFP can be exposed. Figure 2a The outer side of the shell CS. The first region DFP can be oriented parallel to the plane defined by the first direction DR1 and the second direction DR2.

[0063] The second zone DEP can extend from the first zone DFP along the first direction DR1 and can be folded so that a portion of it is disposed below the first zone DFP. The area of ​​the second zone DEP exposed to the outside of the housing CS can depend on the display device DD (see...). Figure 1a It changes depending on whether it is in the insertion state or the expansion state.

[0064] Figure 4 According to the embodiments Figure 3 The image shows a cross-sectional view of the display module. Figure 5 According to the embodiments Figure 4 The image shows a cross-sectional view of the display panel.

[0065] refer to Figure 4 The display module DM may include a display panel DP, an input sensor ISP, an anti-reflective layer RPL, a window WIN, and a panel protective film PPF.

[0066] The display panel DP can be a flexible display panel. According to one embodiment, the display panel DP can be a light-emitting display panel, and is not particularly limited thereto. For example, the display panel DP can be an organic light-emitting display panel or an inorganic light-emitting display panel. The light-emitting layer of an organic light-emitting display panel can include organic light-emitting materials. The light-emitting layer of an inorganic light-emitting display panel can include quantum dots, quantum rods, etc. Hereinafter, the display panel DP will be described as an organic light-emitting display panel.

[0067] In one embodiment, the input sensing unit ISP can be disposed on the display panel DP, wherein the input sensing unit ISP may include a plurality of sensing units (not illustrated) for capacitively sensing external input. The input sensing unit ISP can be directly manufactured on the display panel DP during the manufacturing of the display device DD. However, the invention is not limited thereto, and in another embodiment, the input sensing unit ISP can be manufactured as a panel separate from the display panel DP and attached to the display panel DP by an adhesive layer.

[0068] In one embodiment, an anti-reflective layer RPL may be disposed on the input sensing unit ISP, wherein the anti-reflective layer RPL can be defined as a film for preventing the reflection of external light. The anti-reflective layer RPL can reduce the reflectivity of external light incident from above the display device DD toward the display panel DP.

[0069] When external light propagating toward the display panel DP is reflected from the display panel DP and then provided to a user outside the display panel DP, the user can see the external light as if the display panel were a mirror. In one embodiment, and to prevent this phenomenon, the anti-reflective layer RPL may include a plurality of color filters for displaying the same colors as the pixels of the display panel DP.

[0070] In one embodiment, a color filter can filter external light to the same color as the pixel. In this case, the external light may be invisible to the user. However, the invention is not limited thereto, and in another embodiment, the anti-reflective layer RPL may include a phase delayer and / or a polarizer to reduce the reflectivity of external light.

[0071] In one embodiment, the window WIN can be disposed on the anti-reflective layer RPL, wherein the window WIN can protect the display panel DP, the input sensing unit ISP and the anti-reflective layer RPL from external impacts and scratches.

[0072] In one embodiment, a panel protective film (PPF) may be disposed below the display panel (DP), wherein the panel protective film PPF protects the lower portion of the display panel (DP). The panel protective film PPF may comprise a flexible plastic material such as polyethylene terephthalate (PET).

[0073] In one embodiment and with reference Figure 5 The display panel DP may include a substrate SUB, a circuit element layer DP-CL disposed on the substrate SUB, a display element layer DP-OLED disposed on the circuit element layer DP-CL, and a thin film encapsulation layer TFE disposed on the display element layer DP-OLED.

[0074] In one embodiment, the substrate SUB may include a display area DA and a non-display area NDA disposed adjacent to the display area DA. The substrate SUB may include a flexible plastic material such as polyimide (PI). The display element layer DP-OLED may be disposed on the display area DA.

[0075] In one embodiment, multiple pixels can be disposed in a circuit element layer DP-CL and a display element layer DP-OLED. Each pixel may include a transistor disposed in the circuit element layer DP-CL and a light-emitting element disposed in the display element layer DP-OLED and connected to the transistor. The configuration of the pixels will be described in detail below.

[0076] In one embodiment, the thin-film encapsulation layer TFE can be disposed on the circuit element layer DP-CL to cover the display element layer DP-OLED. The thin-film encapsulation layer TFE can protect the pixels from moisture, oxygen, and external foreign matter.

[0077] Refer again Figure 3 The upper UTP can be disposed on the lower surface of the display module DM. The upper UTP can include a metallic material such as stainless steel (e.g., SUS 316), but the metallic material of the upper UTP is not limited to this. In addition, the invention is not limited thereto, and in another embodiment, the upper UTP can include a non-metallic material such as plastic.

[0078] The upper plate UTP may include a first fixed portion LF1 and a first extended portion LE1. The first fixed portion LF1 may be oriented parallel to the plane defined by a first direction DR1 and a second direction DR2, wherein the first fixed portion LF1 may overlap with the first region DFP.

[0079] The first extension portion LE1 and the first fixed portion LF1 can be arranged along the first direction DR1. The first extension portion LE1 can extend from the first fixed portion LF1 along the first direction DR1, and a portion thereof can be disposed below the first fixed portion LF1. The first extension portion LE1 can overlap with the second zone DEP.

[0080] In one embodiment, a plurality of opening LOPs can be defined within a first extension LE1, wherein the opening LOPs may overlap with a second region DEP. Because the opening LOPs are defined, the rigidity of the first extension LE1 can be reduced, and its flexibility can be increased. Therefore, the first extension LE1 can be easily bent.

[0081] Figure 6a This is an example based on an embodiment. Figure 3 The example in the middle is a perspective view of the unfolded state of the lower panel. Figure 6b This is an example based on an embodiment. Figure 6aThe example shows a perspective view of a support bar.

[0082] As an example, Figure 6a According to an embodiment, the lower surface of the second fixing portion LF2 and the lower surface of the support bar MTB face upwards, and Figure 6b The support bar MTB according to the embodiment faces downwards, with the upper surface of the first extension LE1 facing downwards.

[0083] refer to Figure 3 and Figure 6a The lower plate LTP can be disposed below the upper plate UTP. For example, the lower plate LTP can be soldered to the lower surface of the upper plate UTP. However, the invention is not limited thereto, and in another embodiment, the lower plate LTP can be soldered to the lower surface of the upper plate UTP by various methods.

[0084] In one embodiment, the lower plate LTP may include a second fixed portion LF2 and a second extension portion LE2 arranged together with the second fixed portion LF2 in a first direction DR1. The second fixed portion LF2 may be oriented parallel to a plane defined by the first direction DR1 and the second direction DR2, wherein the second fixed portion LF2 may overlap with the first fixed portion LF1 and the first region DFP.

[0085] In one embodiment, the receiving opening VOP can be defined in the second fixed portion LF2, wherein the receiving opening VOP can be defined by extending from one side of the two sides of the second fixed portion LF2 that are disposed opposite each other in the first direction DR1 toward the other side. This side of the two sides of the second fixed portion LF2 that are disposed opposite each other in the first direction DR1 can be defined as the side facing the support bar MTB, which will be described later.

[0086] In one embodiment, the second extension portion LE2 may include a plurality of support bars MTB. When the lower plate LTP is deployed, the support bars MTB can extend in the second direction DR2 and can be arranged along the first direction DR1. When the support bars MTB are housed within the housing CS (see...), Figure 2a When ), some of the support bars MTB can be arranged in a curved form.

[0087] In one embodiment, the second extension LE2 may overlap with the second region DEP and the first extension LE1. The upper surface of the support bar MTB may face the rear surface of the second region DEP and may be attached to the rear surface of the first extension LE1.

[0088] In one embodiment, the guide groove GGR can be defined on the upper surface of the support bar MTB. In the following description, reference will be made to... Figure 6bThis describes one of a plurality of support bars MTBs. A guide groove GGR can be defined at the center of the support bar MTB. The distances from the two ends of the guide groove GGR that are opposite to each other in the second direction DR2 to the guide groove GGR can be the same.

[0089] The guide groove GGR can extend from the upper surface of the support bar MTB along the third direction DR3 toward the lower surface of the support bar MTB. For example, in Figure 6b In this design, the depth of the guide groove GGR can be the same as half the thickness of the support strip MTB, but the depth of the guide groove GGR is not limited to this. Additionally, the guide groove GGR can have a shape corresponding to a portion of a quadrilateral shape, but the shape of the guide groove GGR is not limited to this.

[0090] In one embodiment, a guide groove GGR is defined in a support bar MTB, but the number of guide grooves GGR defined in a support bar MTB is not limited to this and can be multiple.

[0091] Figure 7 According to the embodiments, such as Figure 2a An exploded perspective view of the housing and extension modules shown. Figure 8 According to the embodiments Figure 7 A perspective view of the guide section shown in the image.

[0092] exist Figure 7 and Figure 8 In the examples illustrated, descriptions of components that are the same as or similar to those described with reference to the foregoing figures will be omitted or simplified.

[0093] refer to Figure 7 and Figure 8 The extension module EMD may include a drive unit DU, a pressure unit PP, a roller ROL, a guide unit GP, and multiple fixing plates FPL.

[0094] A portion of the guide portion GP can be bent relative to an axis oriented parallel to the second direction DR2 to form a curved shape. The guide portion GP may include a first portion PT1, a second portion PT2, and a third portion PT3. In one embodiment, the first portion PT1, the second portion PT2, and the third portion PT3 may be integrally formed.

[0095] The first part PT1 may include a movable part GT and a plurality of protruding parts PTP extending from the movable part GT. The movable part GT may be oriented parallel to a plane defined by a first direction DR1 and a second direction DR2. For example, the movable part GT may have a plurality of short sides extending along the first direction DR1 and a plurality of long sides extending along the second direction DR2.

[0096] Multiple openings OP can be defined adjacent to each other on the two sides of the moving part GT that are opposite to each other in the second direction DR2. For example, each opening OP may have a shape corresponding to a quadrilateral shape, but the shape of the opening OP is not limited to this. Since the openings OP are defined, the rigidity of the edges of the two sides of the moving part GT that are opposite to each other in the second direction DR2 can be reduced.

[0097] The protruding portion PTP can extend along the second direction DR2 from both sides of the movable portion GT that are disposed opposite to each other in the second direction DR2. In one embodiment, the movable portion GT and the protruding portion PTP can be integrally formed. For example, the protruding portion PTP can each have a semi-circular shape, but the shape of the protruding portion PTP is not limited to this.

[0098] The second part PT2 may extend from the first part PT1 along the first direction DR1, and a portion of the second part PT2 may be bent to be disposed below the first part PT1. The second part PT2 may include part 2-1 PT2-1, part 2-2 PT2-2, and part 2-3 PT2-3.

[0099] Part 2-1, PT2-1, may extend from part PT1 along the first direction DR1. Part 2-1, PT2-1, may be oriented parallel to the plane defined by the first direction DR1 and the second direction DR2. Part 2-1, PT2-1, may be disposed on the same plane as part PT1. The width of part PT2-1 in the second direction DR2 may be the same as the width of part PT1 in the first direction DR1.

[0100] Part 2-2, PT2-2, can extend from Part 2-1, PT2-1, and can be bent relative to an axis oriented parallel to the second direction, DR2. When viewed in the second direction, DR2, Part 2-2, PT2-2, can have a curved shape.

[0101] Part 2-3, PT2-3, can extend from Part 2-2, PT2-2, in a direction opposite to the first direction, DR1. Part 2-3, PT2-3, can be positioned below Part 2-1, PT2-1. Part 2-3, PT2-3, can be oriented parallel to Part 2-1, PT2-1.

[0102] The third part PT3 can extend from the second and third parts PT2-3 in a direction opposite to the first direction DR1. For example, the third part PT3 can have a semi-circular shape. The connecting opening UOP can be defined at the center of the third part PT3.

[0103] Figure 9a It is according to the embodiment along Figure 7 A cross-sectional view of the pressurized section taken from line I-I'. Figure 9b An example of the connection between the pressurizing part and the guiding part according to an embodiment is shown.

[0104] exist Figure 9a and Figure 9b In the examples illustrated, descriptions of components that are the same as or similar to those described with reference to the foregoing figures will be omitted or simplified.

[0105] refer to Figure 7 The pressurizing part PP may include a rod portion CB and a plurality of third sidewall portions SW3 connected to the rod portion CB. The rod portion CB may extend along a second direction DR2.

[0106] The third sidewall portion SW3 can be connected to the two sides of the rod portion CB that are disposed opposite to each other in the second direction DR2. The third sidewall portions SW3 can face each other in the second direction DR2. Each of the third sidewall portions SW3 can have a flat surface defined by the first direction DR1 and the third direction DR3. The third sidewall portion SW3 can extend longer in the second direction DR2 than in the third direction DR3. The third sidewall portions SW3 can each have a shape corresponding to the shape of the second sidewall portion SW2 of the movable housing MVS.

[0107] refer to Figure 7 and Figure 9a The sliding groove SWR can be defined in the mutually facing inner surfaces of the third sidewall portion SW3. In the following description, for ease of explanation, the inner surface of one of the third sidewall portions SW3 will be described.

[0108] The sliding groove SWR may include a first sliding groove SWR1, a second sliding groove SWR2, and a third sliding groove SWR3. The first sliding groove SWR1 may be defined to be adjacent to the upper portion of the third sidewall portion SW3 and may extend along the first direction DR1.

[0109] The second sliding groove SWR2 can be defined adjacent to the lower portion of the third sidewall portion SW3, and can be defined below the first sliding groove SWR1. The second sliding groove SWR2 can extend along the first direction DR1. The first sliding groove SWR1 and the second sliding groove SWR2 can be symmetrical to each other in the third direction DR3.

[0110] The third sliding groove SWR3 can connect the first sliding groove SWR1 and the second sliding groove SWR2. The third sliding groove SWR3 can be defined as a curved shape.

[0111] Figure 3 The support bar MTB illustrated in the diagram, with its two sides positioned opposite each other on the second direction DR2, can be disposed in the sliding groove SWR. When the display device DD (see...) Figure 1aWhen the support bar MTB is in the unfolded or inserted state, it can move along the sliding groove SWR. (Refer to...) Figure 15a and Figure 15b Describe in detail the support bar MTB that moves along the sliding groove SWR.

[0112] As an example, an embodiment is described in which the sliding groove SWR is defined in the inner surface of the third sidewall portion SW3. However, in another embodiment, the sliding groove SWR of the third sidewall portion SW3 may be omitted.

[0113] refer to Figure 7 The roller ROL can have a cylindrical shape extending along the second direction DR2. The roller ROL can be connected to the pressure section PP. The roller ROL can be connected to the rod section CB. The roller ROL can be disposed between the third sidewall sections SW3. The roller ROL can be connected to the rod section CB and can rotate about a rotation axis oriented parallel to the second direction DR2.

[0114] refer to Figure 9b The pressure section PP and the roller ROL can be positioned between section 2-1 PT2-1 and section 2-3 PT2-3. The bar section CB and the roller ROL can be positioned between section 2-1 PT2-1 and section 2-3 PT2-3. Section 2-2 PT2-2 can surround the outer surface of the roller ROL.

[0115] Figure 10 This is a perspective view illustrating the connection between the rotating part and the pressurizing part PP according to an embodiment.

[0116] exist Figure 10 In the examples illustrated, descriptions of components that are the same as or similar to those described with reference to the foregoing figures will be omitted or simplified.

[0117] refer to Figure 7 and Figure 10 Multiple drive units DU can be arranged to be spaced apart from each other in the second direction DR2. For example, in Figure 7 Two drive units DU are shown in the example, but the number of drive units DU is not limited to this.

[0118] The drive unit DU may include a rotating part RP and a nut part NTR. The rotating part RP may include a screw part SCW and a motor part MTR. The screw part SCW may each have a rod shape extending along a first direction DR1. A helical groove GR may be defined in the outer surface of the screw part SCW.

[0119] The motor section MTR can be connected to the end of the screw section SCW facing the pressure section PP. Each motor section MTR can have a cylindrical shape. The motor section MTR can rotate around a rotation axis parallel to the first direction DR1 via an external power source. When the motor section MTR rotates around the rotation axis parallel to the first direction DR1, the screw section SCW connected to the motor section MTR can also rotate around the rotation axis parallel to the first direction DR1.

[0120] The screw portion SCW can be inserted into the opening SOP defined in the nut portion NTR. Although not shown, a protrusion corresponding to the helical groove GR can be provided inside the opening SOP. Accordingly, when the screw portion SCW rotates about a rotation axis parallel to the first direction DR1, the helical groove GR and the protrusion can interlock with each other. Accordingly, the screw portion SCW can reciprocate in the first direction DR1. (Refer to...) Figures 13a to 13c Describe in detail the movement of the screw section SCW.

[0121] The drive slot MGR can be defined on the side of the rod portion CB facing the rotating portion RP. The drive slot MGR can be arranged along the second direction DR2. The drive slot MGR can have a shape corresponding to the shape of the motor portion MTR. For example, each drive slot MGR can have a shape corresponding to a portion of a circle. The rotating portion RP can be connected to the rod portion CB. Each of the rotating portions RP can be inserted into and connected to the corresponding drive slot MGR.

[0122] The third part PT3 can be provided in multiple ways, and the multiple third parts PT3 can extend from the second part PT2-3 and can be arranged along the second direction DR2.

[0123] Figure 11 This is a perspective view illustrating the connection between the guide section and the movable plate according to an embodiment.

[0124] exist Figure 11 In the examples illustrated, descriptions of components that are the same as or similar to those described with reference to the foregoing figures will be omitted or simplified.

[0125] refer to Figure 7 and Figure 11 Multiple fixed openings (GOPs) can be defined within the second bottom BP2. The fixed openings (GOPs) can be positioned adjacent to the side of the second bottom BP2 facing the main housing MCS, one of the two sides of the second bottom BP2 that are opposite to each other in the first direction DR1. The fixed openings (GOPs) can be arranged along the second direction DR2.

[0126] The guide section GP, ​​the pressure section PP, and the roller ROL can be housed within the movable housing MVS. The guide section GP can be mounted on the second bottom section BP2. The third portion PT3 of the guide section GP can overlap with the fixed opening GOP. Although not illustrated, a fastening screw can pass through the third portion PT3 and can be connected to the fixed opening GOP. Accordingly, the guide section GP can be fixed to the movable housing MVS.

[0127] The third sidewall portion SW3 of the pressurizing part PP can be disposed between the inner surfaces of the second sidewall portion SW2 that face each other. The third sidewall portion SW3 can be connected to the second sidewall portion SW2. Accordingly, the pressurizing part PP can be fixed to the movable housing MVS.

[0128] Figure 12a According to the embodiments Figure 7 The example shows a perspective view of the fixing plate. Figure 12b This is a perspective view illustrating the connection between the first fixing part and the fixing plate, and the connection between the second fixing part and the nut part, according to an embodiment. Figure 12c This is a perspective view illustrating the connection between the fixing plate and the guide portion according to an embodiment.

[0129] exist Figures 12a to 12c In the examples illustrated, descriptions of components that are the same as or similar to those described with reference to the foregoing figures will be omitted or simplified.

[0130] refer to Figure 7 and Figure 12a The fixing plate FPL can be oriented parallel to the plane defined by the first direction DR1 and the second direction DR2. The fixing plate FPL can each have a long side extending along the first direction DR1 and a short side extending along the second direction DR2.

[0131] The track grooves RGR can be defined on opposite sides of the fixed plate FPL in the second direction DR2. The track grooves RGR can extend toward opposite sides of the fixed plate FPL in the first direction DR1.

[0132] The fixing groove FGR can be defined on opposite sides of the fixing plate FPL. The fixing groove FGR can extend from the track groove RGR along the second direction DR2. The fixing groove FGR and the track groove RGR can be defined in the second direction DR2. For example, the fixing groove FGR can each have a shape corresponding to a portion of a circle.

[0133] The fixing groove FGR may include a first fixing groove FGR1 and a second fixing groove FGR2. A pair of first fixing grooves FGR1 may be spaced apart from a pair of second fixing grooves FGR2 in a first direction DR1. The first fixing groove FGR1 may be adjacent to one side of the fixing plate FPL that is opposite to each other in the first direction DR1 and is adjacent to the first partition wall BW1. The second fixing groove FGR2 may be adjacent to the other side of the fixing plate FPL that is opposite to each other in the first direction DR1. The first fixing grooves FGR1 and the second fixing groove FGR2 may be spaced apart from each other in the first direction DR1.

[0134] refer to Figure 12b For ease of illustration, the rear surfaces of the first fixing portion LF1, the second fixing portion LF2, and the fixing plate FPL are shown facing upwards. In one embodiment, the fixing plate FPL may be disposed on the rear surface of the first fixing portion LF1. When viewed in a plane, the fixing plate FPL may be disposed at the receiving opening VOP defined in the second fixing portion LF2 (see...). Figure 6a )internal.

[0135] When viewed on a flat surface, the mounting plate FPL can be disposed on the rear surface of the first mounting portion LF1, exposed to the outside from the second mounting portion LF2 through the receiving opening VOP. The upper surface of the mounting plate FPL can be attached to the rear surface of the first mounting portion LF1. Accordingly, regardless of the display device DD (see... Figure 1a and Figure 1b Whether it is in the unfolded state or the inserted state, the position of the fixing plate FPL can be fixed.

[0136] The nut portion NTR can be disposed on the rear surface of the second fixing portion LF2. The nut portion NTR can be fixed to the rear surface of the second fixing portion LF2. Accordingly, regardless of the display device DD (see... Figure 1a and Figure 1b Whether in the unfolded or inserted state, the position of the nut part NTR can be fixed.

[0137] refer to Figure 12c For ease of explanation, omitting Figure 12b The first fixing portion LF1 and the second fixing portion LF2 are illustrated, and only the fixing plate FPL provided on the rear surface of the first fixing portion LF1 and the nut portion NTR provided on the rear surface of the second fixing portion LF2 are shown. Additionally, Figure 12c Example of a fixed plate FPL and a guide GP in the inserted state.

[0138] when Figure 12bWhen the first fixing portion LF1 and the second fixing portion LF2 are disposed on the guide portion GP, ​​the fixing plate FPL can be connected to the guide portion GP. The protruding portion PTP can be disposed in the first fixing groove FGR1. Accordingly, in the display device DD (see... Figure 1a When inserted, there will be no gap between the fixing plate FPL and the guide part GP.

[0139] The nut portion NTR can be connected to the screw portion SCW, wherein the screw portion SCW can be inserted into the opening SOP defined in the nut portion NTR. Although not shown, the helical groove GR defined on the outer surface of the screw portion SCW can interlock with the protrusion provided inside the opening SOP.

[0140] Figures 13a to 13c This is a perspective view illustrating the movement of the support bar according to an embodiment. Figure 14a It is according to the embodiment along Figure 13a The cross-sectional view taken from line II-II' in the diagram. Figure 14b It is according to the embodiment along Figure 13c The cross-sectional view taken from line IV-IV' in the diagram.

[0141] As an example, Figure 13a and Figure 14a Examples include the extension module EMD, housing CS, and support bar MTB in the inserted state. Figure 13c and Figure 14b Examples include the extension module (EMD), housing (CS), and support bar (MTB) in the deployed state.

[0142] For ease of explanation, you can Figures 13a to 14b Some components of the display module DM, upper board UTP, second fixed part LF2, and support bar MTB are omitted. Additionally, in... Figure 14a and Figure 14b The components other than the support bar MTB, guide GP, and roller ROL are omitted.

[0143] exist Figures 13a to 14b In the examples illustrated, descriptions of components that are the same as or similar to those described with reference to the foregoing figures will be omitted or simplified.

[0144] refer to Figure 13a and Figure 14aThe support bar MTB can be connected to the guide GP and the moving housing MVS. The guide GP can be disposed in the guide groove GGR. Some of the support bar MTBs can be disposed on the rear surface of section 2-1 PT2-1. Other support bar MTBs can be arranged in a curved shape between the rear surface of section 2-2 PT2-2 and the outer surface of the roller ROL. The remaining support bar MTBs can be disposed on the upper surface of section 2-3 PT2-3 facing the rear surface of section 2-1 PT2-1.

[0145] When the extension module EMD is in the insertion state, the number of support bars MTB set on the upper surface of the 2-3 part PT2-3 can be greater than the number of support bars MTB set on the rear surface of the 2-1 part PT2-1.

[0146] refer to Figure 13b The motor section MT can rotate about a rotation axis parallel to the first direction DR1. When the motor section MT rotates, the screw section SCW connected to the motor section MT can rotate about a rotation axis oriented parallel to the first direction DR1. When the screw section SCW rotates, the helical groove GR and the protrusion (not shown) provided inside the nut section NTR can interlock with each other. Accordingly, the screw section SCW and the motor section MT can move relative to the nut section NTR in the first direction DR1.

[0147] When the screw section SCW and the motor section MT move in the first direction DR1 Figure 11 The pressure section PP, which is connected to the motor section MT, can move in the first direction DR1. The roller ROL, which is connected to the pressure section PP, can move in the first direction DR1.

[0148] When the pressure section PP and the roller ROL move in the first direction DR1, the movable housing MVS connected to the pressure section PP, the guide section GP connected to the movable housing MVS, and the support bar MTB provided between the guide section GP and the roller ROL can move in the first direction DR1.

[0149] Since the movable housing MVS moves in the first direction DR1, the housing CS can extend in the first direction DR1. The overlap area between the movable housing MVS and the main housing MCS can be reduced.

[0150] When the guide GP connected to the movable housing MVS moves in the first direction DR1, the two sides and the protruding portion PTP of the second-1 portion PT2-1, which are arranged opposite to each other in the second direction DR2, can move along... Figure 12a The track groove RGR moves in the first direction DR1.

[0151] Since the opening OP is confined within the first portion PT1, the rigidity of the first portion PT1 can be reduced, and the two sides of the first portion PT1 that are disposed opposite to each other in the second direction DR2 can be bent. Accordingly, the spacing between the protruding portions PTP in the second direction DR2 can be reduced, and the protruding portions PTP can be separated from the first fixing groove FGR1 and disposed in the track groove RGR.

[0152] Settings Figure 14a The support bar MTB on the upper surface of PT2-3 (part 2-3) can move along the upper surface of PT2-3 (part 2-3) according to the movement of the guide GP and the roller ROL. The support bar MTB provided on the rear surface of PT2-2 (part 2-2) and the outer surface of the roller ROL can move along the rear surface of PT2-2 (part 2-2) and the outer surface of the roller ROL to the upper part of the pressure section PP (see...). Figure 14a The support bar MTB that has been moved to the upper part can move along the rear surface of section PT2-1 (part 2-1). The number of support bars MTB provided on the upper part of the pressurizing section PP can be increased.

[0153] Because the center of the support bar MTB moves along the rear surface of part 2-1 PT2-1, the rear surface of part 2-2 PT2-2, and the upper surface of part 2-3 PT2-3, the center of the support bar MTB does not need to be bent. Correspondingly, in the display module DM (see...) Figure 3 No wrinkles will appear in the portion of the display device that overlaps with the center of the support strip MTB. Therefore, the display device DD (see...) can be improved. Figure 1a Surface quality.

[0154] refer to Figure 13c and Figure 14b When the extension module EMD is in the deployed state, the housing CS can be extended to its maximum extent. The overlap area between the moving housing MVS and the main housing MCS can be the minimum area.

[0155] When the extension module EMD is in the deployed state, the protruding portion PTP of the guide GP can be positioned inside the second fixing slot FGR2. Correspondingly, when the display device DD (see...) Figure 1b When in the extended state, there will be no gap between the guide part GP and the fixing plate FPL.

[0156] When the extension module EMD is in the deployed state, the number of support bars MTB provided on the upper part of the pressurization section PP can be increased. The number of support bars MTB provided on the rear surface of section 2-1 PT2-1 can be greater than the number of support bars MTB provided on the upper surface of section 2-3 PT2-3.

[0157] Although not illustrated, the area of ​​the upper plate UTP and the area of ​​the display module DM exposed to the outside from the housing CS can be increased due to the increased number of support bars MTB provided on the upper part of the pressurization section PP.

[0158] In the following text, the display device DD (see Figure 1b The process of changing from the expanded state to the inserted state, because this process is based on a reference... Figures 13a to 13c The process described is carried out in the reverse order.

[0159] Figure 15a It is according to the embodiment along Figure 13a The cross-sectional view taken from line III-III' in the diagram. Figure 15b It is according to the embodiment along Figure 13c The cross-sectional view taken from line IV-IV' in the diagram.

[0160] exist Figure 15a and Figure 15b In the examples illustrated, descriptions of components that are the same as or similar to those described with reference to the foregoing figures will be omitted or simplified.

[0161] refer to Figure 13a and Figure 15a The two sides of the support bar MTB, which are arranged opposite each other in the second direction DR2, can be connected to the third sidewall portion SW3. The two sides of the support bar MTB, which are arranged opposite each other in the second direction DR2, can be connected to the sliding groove SWR. In the following text, for ease of explanation, one of the third sidewall portions SW3 will be described.

[0162] When the extension module EMD is in the insertion state, the number of support bars MTB set in the first sliding groove SWR1 can be less than the number of support bars MTB set in the second sliding groove SWR2. The support bars MTB set in the third sliding groove SWR3 can be set on the outer surface of the roller ROL.

[0163] refer to Figure 13c , Figure 15a and Figure 15b When the extension module EMD changes from the inserted state to the extended state, the support bar MTB can move along the second sliding groove SWR2, pass through the third sliding groove SWR3, and move towards the first sliding groove SWR1. The support bar MTB can move along the outer surface of the roller ROL towards the first sliding groove SWR1. The number of support bars MTB provided in the first sliding groove SWR1 can be increased. The number of support bars MTB provided in the first sliding groove SWR1 can be less than the number of support bars MTB provided in the second sliding groove SWR2.

[0164] Accordingly, in one embodiment, the display module DM (see...) Figure 1b ) from the housing CS (see Figure 1b The area exposed to the outside will increase.

[0165] The preferred embodiments of the present invention have been described above with reference to them. However, those skilled in the art or those with ordinary skill in the art will understand that various modifications and changes can be made to the present invention within its scope without departing from the spirit and technical scope thereof. Furthermore, the disclosed embodiments are not intended to limit the technical spirit of the present invention, and all technical ideas disclosed herein should be interpreted as being included within the scope of the present invention. In addition, embodiments or parts thereof may be combined in whole or in part without departing from the scope of the present invention. Industrial applicability

[0166] Since the centers of multiple support bars move along the guide, the centers of the support bars can remain undeformed, thereby providing users with a display device with an improved surface quality having a display module placed on the support bars. Therefore, the present invention has high industrial applicability.

Claims

1. A display device, comprising: The display module includes a first area and a second area, the second area extending from the first area along a first direction, and a portion of the second area being folded to be disposed below the first area; An extension module is disposed between the portion of the first region and the portion of the second region disposed below the first region; as well as Multiple support bars are provided on the rear surface of the second area. The extension module includes: Multiple fixing plates are disposed below the first area; and The guide portion has a first part and a second part, at least a portion of the first part being disposed below the first region between the plurality of fixing plates, and at least a portion of the second part being disposed between the rear surface of the second region and the upper surface of the plurality of support bars. The centers of the plurality of support bars overlap with the second portion.

2. The display device according to claim 1, wherein a plurality of track grooves are defined at the sides of the plurality of fixed plates facing each other in a second direction intersecting the first direction, and The first portion moves along the plurality of track slots in the first direction.

3. The display device according to claim 2, wherein the first part comprises: The movable part has a flat surface defined by the first direction and the second direction; as well as Multiple protruding portions extend along the second direction from two sides of the movable portion that are positioned opposite each other in the second direction. Multiple fixing slots are defined in the multiple fixing plates to extend from the multiple track slots along the second direction, and When the extension module is in an unfolded state where it extends in the first direction or an inserted state where it retracts in the first direction, the plurality of protruding portions are disposed in the plurality of fixing slots.

4. The display device according to claim 3, wherein a plurality of openings are defined in the movable portion and disposed adjacent to the plurality of protrusions.

5. The display device according to claim 1, wherein a plurality of guide grooves are defined in the upper surfaces of the plurality of support bars, the upper surfaces of the plurality of support bars facing the rear surface of the second portion, and the second portion is disposed inside the plurality of guide grooves.

6. The display device according to claim 1, wherein the second part comprises: Part 2-1 is disposed on the same plane as Part 1; Part 2-2 extends from Part 2-1 and has a curved shape; as well as Part 2-3 is located below Part 2-1.

7. The display device according to claim 6, further comprising: The main housing is configured to house the display module and the extension module; as well as The movable housing moves relative to the main housing in the first direction. The movable housing includes: The bottom is defined by the first direction and a second direction intersecting the first direction; as well as Multiple sidewall portions are provided on both sides of the bottom that are arranged opposite to each other in the second direction.

8. The display device of claim 7, wherein a plurality of sliding grooves are defined in the inner surfaces of the plurality of sidewall portions to face each other, at least a portion of each of the plurality of sliding grooves having a curved shape, and The two sides of the plurality of support bars, which are arranged opposite to each other in the second direction, are disposed inside the plurality of sliding grooves.

9. The display device according to claim 7, wherein the guide portion further comprises a third portion extending from the second-third portion along the first direction, and The third part is connected to the bottom.

10. The display device according to claim 1, further comprising an upper plate disposed between the first area and the first portion, and The fixing plate is disposed on the lower surface of the upper plate.

11. A display device, comprising: The display module includes a first area and a second area, the second area extending from the first area along a first direction, and a portion of the second area being folded to be disposed below the first area; An extension module is disposed between the portion of the first region and the portion of the second region disposed below the first region; and A plurality of support bars, at least some of which are disposed below the second region, and wherein a plurality of guide grooves are defined in the upper surfaces of the plurality of support bars, the upper surfaces of the plurality of support bars facing the rear surface of the second region. The extension module includes: A guide portion is disposed in the guide groove, and at least a portion of the guide portion has a curved shape; as well as Multiple fixing plates are disposed on both sides of the guide portion, facing each other in a second direction intersecting the first direction, and are disposed below the first area. The plurality of support bars move along the guide section.

12. The display device of claim 11, wherein the plurality of track grooves extending along the first direction are defined at the mutually facing sides of the plurality of fixed plates, and As the guide moves along the plurality of track grooves, the plurality of support bars move along the curved shape.

13. The display device according to claim 12, wherein the guide portion comprises: The first part is disposed below the first area and includes a movable portion disposed between the plurality of fixed plates and a plurality of protruding portions extending from the movable portion along the second direction; as well as The second part is disposed below the second region and extends from the first part along the first direction, at least a portion of the second part having the curved shape.

14. The display device of claim 13, wherein the first groove is defined adjacent to one side of the fixing plate in the first direction and extends from the track groove along the second direction. The second groove is defined adjacent to the other side of the fixing plate in the first direction, and extends from the track groove along the second direction. When the plurality of protrusions move from the first slot to the second slot, the extension module extends in the first direction.

15. The display device of claim 14, wherein a plurality of openings are defined on both sides of the first portion that are disposed opposite to each other in the second direction.

16. The display device according to claim 13, further comprising: The main housing accommodates the display module and the extension module; as well as The movable housing moves relative to the main housing in the first direction. The movable housing includes a bottom and a plurality of sidewall portions extending from two sides of the bottom that are disposed opposite to each other in the second direction along a third direction that intersects with a plane defined by the first direction and the second direction.

17. The display device of claim 16, wherein a plurality of sliding grooves are defined in the inner surfaces of the plurality of sidewall portions to face each other, at least a portion of the plurality of sliding grooves having a curved shape, and The two sides of the plurality of support bars, which are arranged opposite to each other in the second direction, are disposed inside the plurality of sliding grooves.

18. The display device of claim 17, wherein the guide portion further comprises a third portion extending from the second portion along the first direction and disposed below the first portion, and The third part is connected to the bottom.

19. The display device according to claim 16, wherein the extension module further comprises: A pressurizing section is disposed between the plurality of sidewall sections; The drive unit, connected to one of the two sides of the pressurizing unit that are disposed opposite to each other in the first direction, wherein the side of the pressurizing unit is defined as the side facing the main housing; and A roller is connected to the other side of the pressure section.

20. The display device of claim 11, wherein the plurality of guide slots are defined at the center of each of the plurality of support bars.

Images