KR20190081264A - Display device - Google Patents

Abstract

Embodiments of the present invention relate to a display device. More specifically, the display device includes a rigid member disposed below a display panel and a support member disposed below the rigid member. The display panel and the rigid member may be bent in a region corresponding to a bending region. The support member is separated based on a bending reference line in the bending region when the display panel and the rigid member are bent. In the bending region, an adhesion reducing member is located between the rigid member and the support member. In the non-bending region adjacent to the bending region, there is an adhesive member located between the rigid member and the support member. According to the embodiments of the present invention, it is possible to increase the image quality of the display device.

Description

Display device {DISPLAY DEVICE}

The present invention relates to a display device.

2. Description of the Related Art [0002] As an information-oriented society develops, there have been various demands for a display device for displaying images. Recently, a liquid crystal display (LCD), a plasma display panel (PDP) Various display devices such as an OLED (Organic Light Emitting Diode Display Device) are being utilized.

Such display devices are applied not only to mobile devices such as smart phones and tablet PCs but also to various fields such as TVs (Television), automobile displays, and wearable devices. In order to be applied to various fields, structural modification is required.

In recent years, a display device capable of bending has been spotlighted. The bendable display device must be capable of bending or folding the structures constituting the display device.

The deflectable or collapsible display device described above requires a display panel and an adhesive layer below the display panel to combine mechanisms for supporting or protecting the display panel. Also, the adhesive layer must be able to bend or fold.

 However, when bending the display device, stress acts on the adhesive layer due to external force, and the surface of the adhesive layer becomes uneven. In this case, the display panel disposed on the adhesive layer also affects the surface of the display panel. Specifically, the surface of the display panel is also slightly rugged along the surface of the uneven adhesive layer.

In addition, a plurality of adhesive layers are used to combine the mechanisms disposed under the display panel, so that the thickness of the display device becomes thick. When the thickness of the display device is increased, a force required to bend the display device becomes large, and excessive force is applied to the bent structures, thereby causing cracks.

In addition, among the mechanisms included in the display device, the mechanism having the property of being warped or difficult to fold can prevent the display device from being bent

In view of the foregoing, it is an object of embodiments of the present invention to provide a display device having a structure capable of preventing screen colors from appearing differently according to a viewing angle in a bendable display device.

It is another object of embodiments of the present invention to provide a display device having a structure capable of reducing the thickness of a bendable display device.

It is still another object of embodiments of the present invention to provide a display device having a structure in which a support member, which is a mechanism disposed at a lower portion of a display panel in a bendable display device, does not hinder bending of the display device.

In one aspect, in a display device according to embodiments of the present invention, a display panel having a bending region having a bending reference line and a non-bending region adjacent to the bending region, a rigid member disposed below the display panel, Wherein the display panel and the rigid member are bendable at a portion corresponding to the bending region and the support member is separated from the bendable reference line in the bending region at the time of bending the display panel and the rigid member, In the bending area, an adhesion reducing member is positioned between the rigid member and the support member, and an adhesive member is positioned between the rigid member and the support member in the non-bending region adjacent to the bending region.

In such a display device, the adhesive member may be disposed to correspond to at least one rim of the non-bending region, or may be disposed in the non-bending region.

Further, the adhesive member and the adhesive reducing member may be located on the same layer, and the adhesive member and the adhesive reducing member may have corresponding heights.

In another aspect, in a display device according to embodiments of the present invention, a display panel having a bending area with a bending reference line and a non-bending area adjacent to the bending area, a rigid member disposed below the display panel, Wherein the display panel and the rigid member are bendable at a portion corresponding to the bending region and the support member is separated from the bendable reference line in the bending region at the time of bending the display panel and the rigid member, , An adhesive member is disposed between the rigid member and the supporting member, and the adhesive force of the portion corresponding to the bending region and the adhesive force of the portion corresponding to the non-bending region of the adhesive member may be different from each other.

According to another aspect of the present invention, there is provided a display device comprising: a display panel having a bending region having a bending reference line and a non-bending region adjacent to the bending region; a rigid member disposed at a lower portion of the display panel; Wherein the display panel and the rigid member are bendable at a portion corresponding to the bending region and the support member is separated at the bending of the display panel and the rigid member with respect to the bending reference line in the bending region, An adhesive member is disposed between the rigid member and the support member, and in the adhesive member, the adhesive force of the portion corresponding to the bending region and the hardness of the portion corresponding to the non-bending region may be different from each other.

As described above, according to the embodiments of the present invention described above, it is possible to provide a display device having a structure capable of preventing screen colors from appearing differently according to a viewing angle in a bendable display device.

According to the embodiments of the present invention, a display device having a structure capable of reducing the thickness of a bendable display device can be provided.

According to the embodiments of the present invention, it is possible to provide a display device having a structure in which a support member, which is a mechanism disposed at a lower portion of a display panel in a bendable display device, does not hinder bending of the display device.

1 is a perspective view schematically showing a display device according to embodiments of the present invention.
2 is a cross-sectional view schematically showing a display device according to embodiments of the present invention.
3 is a view showing a state in which the display device according to the embodiments of the present invention is bent in one direction.
4 is a cross-sectional view illustrating a structure of a display device according to embodiments of the present invention.
5 is a view showing an embodiment for making an adhesion reducing member located in a bending region.
6 is a cross-sectional view illustrating a structure of a display device according to another embodiment of the present invention.
7 is a perspective view showing an adhesive member and an adhesion reducing member according to embodiments of the present invention.
FIG. 8 is a graph showing the tendency of adhesive force for each region when using the adhesive member and the adhesion reducing member according to the embodiments of the present invention.
9 is a view showing an adhesive member and an adhesion reducing member according to other embodiments of the present invention.
10 is a cross-sectional view of FIG. 9 taken along line AB.
11 is a view showing an adhesive member and an adhesion reducing member according to still another embodiment of the present invention.
12 is a cross-sectional view taken along the line CD of Fig.
13 to 15 are views showing various positions of the first adhesive member according to the embodiments of the present invention.
16 is a cross-sectional view taken along line EF in Fig.
17 is a view showing an embodiment in which the adhesive member of the present invention is disposed asymmetrically with respect to the bending region.
18 is a view schematically showing a display device according to another embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to denote like elements throughout the drawings, even if they are shown on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the components from other components, and the terms do not limit the nature, order, order, or number of the components. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; intervening "or that each component may be" connected, "" coupled, "or " connected" through other components.

It will be understood that when an element or layer is referred to as being another element or "on" or "on ", it includes both intervening layers or other elements in the middle, do. On the other hand, when a device is referred to as "directly on" or "directly above ", it does not intervene another device or layer in the middle.

The terms spatially relative, "below," "lower," "above," "upper," and the like, And may be used to easily describe the correlation with other elements or components. Spatially relative terms should be understood to include, in addition to the orientation shown in the drawings, terms that include different orientations of the device during use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element. Thus, the exemplary term "below" can include both downward and upward directions.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the components from other components, and the terms do not limit the nature, order, order, or number of the components.

1 is a perspective view schematically showing a display device according to embodiments of the present invention.

Referring to FIG. 1, a display device 100 according to embodiments of the present invention is a display device 100 including at least one bending area BA and at least two non-bending areas NBA1 and NBA2.

The display device 100 according to the embodiments of the present invention may be a display device 100 that can be stably driven even when bent by an external force.

1, a display device 100 according to embodiments of the present invention has a configuration of a bendable display device 100, but this is merely an example, and a display device 100 according to embodiments of the present invention 100 may be various display devices 100 such as a foldable display device, a curved display device, a rolled display device, and a flexible display device.

Bending the display device 100 according to the embodiments of the present invention may include both meaning that the display device 100 is bent or folded.

Although not shown separately, the display device 100 according to the present invention may be applied to various electronic devices such as a cellular phone, a personal computer, a notebook computer, a personal digital terminal, a car navigation unit, a game machine, a portable electronic device, A wristwatch-type electronic device, a small-sized electronic device such as a camera, and the like.

As shown in Fig. 1, the display surface IM on which an image is displayed is parallel to the first direction DR1 and the second direction DR2. The normal direction of the display surface is parallel to the third direction DR3. That is, the third direction DR3 is perpendicular to the first and second directions DR1 and DR2. The third direction DR3 may indicate the thickness direction of the display device 100. [ The front and back surfaces of the respective members can be distinguished by a third direction DR3.

Further, the display device 100 according to the embodiments of the present invention includes a plurality of regions that are distinguished on the display surface. The display device 100 can be divided into a display area (AA, or may be referred to as an active area) and a non-display area (which may be referred to as an inactive area) according to whether the area displays an image have.

The display device 100 displays an image through the display area AA. The non-display area NA does not display an image. In the non-display area NA, a driver and / or wires for driving the display area AA may be disposed. The non-display area NA may surround the display area AA.

The display device 100 may be divided into a bending area BA bent according to an applied external force and a first non-bending area NBA1 and a second non-bending area NBA2 that are not bent according to an applied external force. The bending area BA may be located between the first and second non-bending areas NBA1 and NBA2.

The bending area BA may be bent based on a bending reference line BL that is parallel to the second direction DR2, for example.

2 is a cross-sectional view schematically showing a display device according to embodiments of the present invention.

Referring to FIG. 2, a display device 100 according to embodiments of the present invention includes a display panel 210, a rigid member 220 disposed under the display panel 210, And a support member 240.

The display panel 210 and the rigid member 220 can bend in the bending area BA and the support member 240 can bend in the bending area BA when bending the display panel and the rigid member 220. [ Line. ≪ / RTI > The support member 240 includes a first support member 241 and a second support member 242 that can be separated from each other.

The adhesion reducing member 233 and the adhesion member 230 are positioned between the rigid member 220 and the support member 240 in the bending region BA and the non-bending regions NBA1 and NBA2. Specifically, in the bending area BA, the adhesion reducing member 233 is positioned between the rigid member 220 and the support member 240, and the rigid member 220 and the support member 240 are positioned in the non- The adhesive member 230 is placed between the first and second adhesive layers 230 and 240.

At this time, the adhesion reducing member 233 may extend in a direction away from the bending reference line and be located between the rigid member 220 and the support member corresponding to the non-bending regions NBA1 and NBA2.

 The display panel 210 may be a liquid crystal display panel, an organic light emitting display panel, an electrophoretic display panel, and the like, and the type thereof is not limited.

The rigid member 220 may serve to support the display panel 210. The support member 240 may support the display panel 210 and the rigid member 220 when the display device 100 is bent.

The display panel 210, the rigid member 220, and the adhesion reducing member 233 may all be bent with respect to the bending reference line BL.

For this, the display panel 210 may include at least one organic substrate, and the display panel 210 may be formed to be thin.

Further, the rigid member 220 may be made of plastic or metal, but the present invention is not limited thereto.

The display panel 210 and the rigid member 220 may be thin in thickness to facilitate bending or folding.

The support member 240 may be made of plastic or metal, but the present invention is not limited thereto. That is, it suffices that the support member 240 of the present invention is made of a material capable of stably supporting the display panel 210 and the rigid member 220.

The adhesive force of the portion of the adhesive member 230 corresponding to the bending region BA and the adhesive force of the portion of the adhesive member 230 corresponding to the first and second non-bending regions NBA1 and NBA2 may be different from each other. For example, the adhesive force of the adhesive member 230 corresponding to the first and second non-bending areas NBA1 and NBA2 may be smaller than the adhesive force of the adhesive member 230 corresponding to the bending area BA.

In the first and second non-bending regions NBA1 and NBA2, the support member 240 can be tightly coupled to other structures through the adhesive member 230. [ In the bending area BA, the support member 230 may not be attached to the adhesive member 230, or may be adhered with very weak adhesive force.

2, when the bending reference line BL of the display device 100 is one, when the display device 100 is bent, the support member 240 is bent with respect to the bending reference line BL And can be separated into two support members 241, 242.

[0030] A mode in which the display device according to the embodiments of the present invention is bent will be described in detail with reference to FIG. 3 as follows.

3 is a view showing a state in which the display device according to the embodiments of the present invention is bent in one direction.

Referring to FIG. 3, the display device 100 according to the embodiments of the present invention may be bent or folded around the bending reference line BL in the bending area BA.

In this display device 100, the first non-bending region NBA1 is located on one side of the bending region BA and the second non-bending region NBA2 is located on the other side of the bending region BA . The bending area BA may be divided into a first area BA1 and a second area BA2 with reference to the bending reference line BL.

3 shows a configuration in which the display surfaces IM of the display panel 210 are bent to be positioned inside the display device 100 in a bent state, (Not shown).

3, when the display device 100 is bent, the first support member 241 of the support member 240 contacts the first area BA1 of the bending area BA and the first area BA1 of the bending area BA, 1 non-bending region NBA1 and the second support member 242 may be positioned to correspond to the second region BA2 and the second non-bending region NBA2 of the bending region BA.

As such, the first and second support members 241 and 242 can be separated from each other and the first and second support members 241 and 242 are not disposed in all or a part of the area where the display device 100 is bent .

When the display panel 210 and the rigid member 220 are bent, the first support member 241 is separated from all or a part of the first area BA1 of the bending area BA, and the second support member 241 242 may be spaced apart from all or a portion of the second area BA2 of the bending area BA.

The first and second support members 241 and 242 prevent the display panel 210 and the rigid member 220 from being twisted by the stress when the display device 100 is bent .

Since the support member 240 is not attached to the bonding member 230 in the bending area BA or is adhered to the bonding member 230 with a very weak adhesive force, the supporting member 240 is bent in the bending area BA at the time of bending the display device 100, Can be separated into the first and second support members 241 and 242 with reference to the bending reference line BL.

The first and second support members 241 and 242 are relatively thicker than the display panel 210 and the rigid member 220 in order to stably support the display panel 210 and the rigid member 220, Can be made thick.

On the other hand, in order to bend the display device 100, an external force must be applied to the display device 100, and as the thickness of the display device 100 increases, the force required to bend or fold is increased. Therefore, when the display device 100 is bent to the support member 240 when bending the display device 100, it is necessary to exert a force larger than the force required to bend only the display panel 210 and the rigid member 220.

However, a large number of elements exist in the display panel, and when an excessive force is applied, breakage of elements included in the display panel may occur.

Since the support member 240 of the display device 100 according to the embodiments of the present invention is not bonded to the adhesive member 230 in the bending area BA or is adhered with a very weak adhesive force, May be spaced apart from all or a portion of the adhesive member (230) located in the bending area (BA). Through this structure, the support member 240 may not be included in the bendable configuration.

The support member 240 is fixed to the rigid member 220 through an adhesive member 230 provided on the first and second nonbending regions NBA1 and NBA2 so that when the display device 100 is bent, 220 and the display panel 210 are supported.

Therefore, it is possible to bend the display device 100 without fear of damaging the elements provided on the display panel 210, and to stably support the components (display panel and rigid member) bent when the display device 100 is bent can do.

Next, the structure of the display device according to the embodiments of the present invention will be examined in detail with reference to FIG.

4 is a cross-sectional view illustrating a structure of a display device according to embodiments of the present invention.

Referring to FIG. 4, the display device 100 includes a cover window 450 disposed on the display panel 210. A rigid member 210 is disposed under the display panel 210 and an adhesive 460 and a film layer 270 are disposed under the rigid member 210. A support member 240 including first and second support members 241 and 242 is disposed under the film layer 270.

An adhesive member 230 is positioned between the rigid member 220 and the support member 240 in the non-bending regions NBA1 and NBA2 adjacent to the bending region BA and the bending region BA.

The cover window 450 may protect the display panel 210 from being broken by an external impact.

The rigid member 220 may serve to support the display panel 210 and dissipate heat transferred from the display panel 210 and may include a portion corresponding to the bending region BA and a portion corresponding to the bending region BA, (NBA1, NBA2) may have different surfaces.

For example, the rigid member 220 may have at least one groove 421 in the bending region BA. At least one groove 421 may facilitate bending of the rigid member 220 when the display device 100 is bent.

The film layer 270 can keep the adhesive member 260 in a flat state. When the flatness of the adhesive member 260 is lowered, the thickness of the adhesive member 260 may vary depending on the area. In this case, since the flatness of the display panel 210 disposed on the adhesive member 260 also decreases, defects may appear that may cause the screen to look different depending on the viewing angle.

The adhesive member 230 allows the first and second support members 241 and 242 to be separated when the display device 100 is bent in the bending area BA.

The adhesive member 230 may be formed by irradiating the adhesive member 230 with light in a region corresponding to the bending region BA.

A method of making the adhesive member 230 will be described in detail with reference to FIG.

5 is a view showing an embodiment for making an adhesive member according to embodiments of the present invention.

Referring to FIG. 5, a photocurable adhesive material 530 is formed under the film layer 260. A light shielding tape 580 is attached to the back surface of the photo-curable adhesive material 530.

The light shielding tape 580 may be attached only to the first and second non-bending areas NBA1 and NBA2 except for the bending area BA. That is, the light shielding tape 280 may be arranged to expose a part of the back surface of the photocurable adhesive material 530 in the bending area BA.

Light (for example, ultraviolet light) is irradiated to the entire back surface or a part of the back surface of the photocurable adhesive material 530 exposed by the shielding tape 580. When light irradiation is completed, the light-shielding tape 580 attached to the back surface of the light-curable adhesive material 530 is removed.

At this time, the adhesive force of the photo-curable adhesive material 530 is reduced or eliminated in the region irradiated with light, i.e., the photo-curable adhesive material 530 located in the bending area BA. The photo-curable adhesive material 530, which is not irradiated with light, i.e., the photo-curable adhesive material 530 located in the first and second non-bending areas NBA1 and NBA2, has a high adhesive force.

Through such a process, the photo-curable adhesive material 530 located in the bending area BA is reduced or eliminated due to the light irradiation, and the photo-curable adhesive material 530 located in the first and the second non-bending areas NBA1 and NBA2 The adhesive material 530 becomes the adhesive material 230 of Fig. 4 in which the adhesive force remains unchanged.

The hardness of the portion corresponding to the bending region BA and the hardness of the portion corresponding to the first and second non-bending regions NBA1 and NBA2 in the above-described bonding member 230 may be different from each other. For example, the bonding member 230 may have a hardness corresponding to the first and second non-bending regions NBA1 and NBA2 that is smaller than a hardness corresponding to the bending region BA.

On the other hand, at the time of bending the display device 100, a portion corresponding to the bending area BA of the adhesive member 230 may be exposed to the outside. However, since the hardness of the first non-bending area NBA1 and the second non-bending area NBA2 are different from the bending area BA of the bonding member 230, Even if a direct impact is applied to a portion corresponding to the portion of the substrate W.

The display device according to the embodiments of the present invention may have the structure shown in FIG. 6 as well as the structure shown in FIG.

6 is a cross-sectional view illustrating a structure of a display device according to another embodiment of the present invention. In the following description, the contents overlapping with the above-described embodiments may be omitted.

6, the display device 100 includes a cover window 450, a display panel 210, a rigid member 220, an adhesive member 230, an adhesion reducing member 233, and a support member 240 do.

The adhesive member 230 is positioned between the rigid member 220 and the support member 240 in the first and second nonbending regions NBA1 and NBA2 adjacent to the bending region BA. The adhesion reducing member 233 is positioned between the rigid member 220 and the support member 240 in the bending area BA.

Here, the adhesion reducing member 233 may be made of a soft organic material, but is not limited thereto, and it may suffice if the adhesion reducing member 233 is formed of a material having no adhesiveness, weakness, and easy to bend or fold.

The first and second support members 240 are not attached to the adhesion reducing member 233 in the bending area BA or the adhesion reducing member 233 is not attached to the bending area BA because the adhesion reducing member 233 is located in the bending area BA, It can be attached with very weak adhesive force.

Therefore, when bending the display apparatus 100, since the support member 240 is separated from the adhesion reducing member 233 in the bending area BA, the support member 240 is not disturbed by the support member 240 when the display apparatus 100 is bent .

As shown in Fig. 6, the adhesion member 230 and the adhesion reduction member 233 are located on the same layer. Therefore, only one layer is disposed between the rigid member 220 and the support member 240, so that the thickness of the display device 100 can be reduced.

As a result, the force exerted on the display device 100 to bend the display device 100 can be reduced, so that the components participating in bending, for example, the display panel 210, the rigid member 220, The force applied to the reducing member 233 is also reduced and the probability of occurrence of cracks can be lowered.

Further, the adhesion member 230 and the adhesion reduction member 233 may have corresponding heights. That is, the height T1 of the adhesive member 230 and the height T2 of the adhesion reducing member 233 may be the same.

When the thickness T1 of the adhesive member 230 and the thickness T2 of the adhesion reducing member 233 are different from each other, the adhesive strength between the adhesive member 230 and the display panel 210 disposed on the adhesive reducing member 233 Flexibility can occur. As a result, the screen may look different depending on the viewing angle. That is, the image quality of the display device 100 may be deteriorated.

However, since the thickness T1 of the adhesive member 230 and the thickness T2 of the adhesion reducing member 233 correspond to each other in the display device 100 according to the present embodiments, The screen of the same color can be seen.

The adhesion member 230 may be a flexible organic material having adhesiveness and the adhesion reduction member 233 may be a soft organic material having no adhesion.

For example, the adhesive member 230 may be any one of Pressure Sensitive Adhesive (PSA), Optically Clear Resin (OCR), and Optically Clear Adhesive (OCA) Not so,

The adhesion reducing member 233 may be any one of ABS resin (acrylonitrile butadiene styrene copolymer) including PET (polyethylene terephthalate), but is not limited thereto. The adhesion reducing member 233 of the present invention is a flexible organic material having no adhesiveness but a stress generated in the adhesion reducing member 233 by an external force (for example, an external force applied to the adhesion reducing member when the display device is bent) Substances that do not cause clumping or flow even if they occur are sufficient.

As described above, since the adhesive member 230 located in the first and second non-bending regions NBA1 and NBA2 has adhesiveness, the rigid member 220 and the support member 240 can be firmly fixed.

 Since the adhesion reducing member 233 located in the bending area BA is a soft organic material, it can be bent without cracking when the display device 100 is bent. In addition, since there is no adhesion, the phenomenon that the support member 240 does not interfere with bending of the display device 100 with respect to the adhesion reducing member 233 does not occur.

The arrangement of the adhesive member 230 and the adhesive reducing member 233 according to the embodiments of the present invention and the adhesive force according to the area will be described in detail with reference to FIGS. 7 and 8. FIG.

7 is a perspective view showing an adhesive member and an adhesion reducing member according to embodiments of the present invention. FIG. 8 is a graph showing the tendency of adhesive force for each region when using the adhesive member and the adhesion reducing member according to the embodiments of the present invention. In the following description, the contents overlapping with the above-described embodiments may be omitted.

7, the adhesion reducing member 233 is positioned in the bending region BA and the adhesive member 230 is positioned in the first and second non-bending regions NBA1 and NBA2 adjacent to the bending region BA, do.

That is, the adhesive member 230 may be located in the entire area of the first and second non-bending areas NBA1 and NBA2. Then, the adhesion reducing member 233 may be positioned over the entire bending area BA.

On the other hand, it has been explained that even if stress is applied to the adhesion reducing member 233, no aggregation or flow occurs. By placing such an adhesive reducing member 233 on the entire bending area BA, stress is applied to the adhesive reducing member 233 when bending the display device 100 (for example, an external force is applied to the adhesive reducing member when the display device is bent, The stress acting in the reduction member) is generated, no change in thickness occurs.

In the region where stress is generated in the adhesion reducing member 233 to cause aggregation or flow, in the region where the stress is greatly increased, the material of the adhesion reducing member 233 is pushed to another region and the thickness is thinned. (233) may accumulate and become thick. That is, the thickness of the adhesion reducing member 233 may be varied in each region.

As a result, the surface of the display panel 210 positioned on the adhesion reducing member 233 may be wavy, and the image quality may deteriorate.

However, when the adhesive reducing member 233 according to the present invention is made of a material that does not cause aggregation or flow even when stress occurs, the adhesive reducing member 233 has the greatest external force when bending the display device 100 It is possible to improve the image quality of the display device 100. [0070] As shown in Fig.

8, in the first and second non-bending regions NBA1 and NBA2 where the adhesive member 230 is disposed according to the embodiments of the present invention, the adhesive member 230 is positioned, appear.

However, there may be no adhesive force in the bending area BA where the adhesion reducing member 233 is located.

The adhesive member and the adhesion reducing member of the present invention include, but are not limited to, those shown in Fig. 9 to 17 show an adhesive member and an adhesion reducing member according to various embodiments of the present invention. In the following description, the contents overlapping with the above-described embodiments may be omitted.

9 is a view showing an adhesive member and an adhesion reducing member according to other embodiments of the present invention.

Referring to FIG. 9, a plurality of bonding members 230 are disposed on a portion of the first and second non-bending regions NBA1 and NBA2. The adhesion reducing member 233 is disposed on a part of the bending area BA and the first and second non-bending areas NBA1 and NBA2. 9 can also be positioned between the rigid member 220 and the support member 240. As shown in Fig.

9, a plurality of adhesive members 230 are arranged in a row in the first and second non-bending regions NBA1 and NBA2, but the present invention is not limited thereto, They can be arranged in various ways such as being arranged in a zigzag manner.

The plurality of adhesive members 230 may be disposed apart from each other. The plurality of adhesive members 230 may be arranged so as to be spaced apart from each other with a uniform gap, but the present invention is not limited thereto.

In this case, the adhesion reducing member 233 may surround the adhesion member 230. [

As described above, since the plurality of adhesive members 230 are spaced apart from each other, it is possible to prevent the thickness difference of the plurality of adhesive members 230 from occurring in each region.

The effects described above will be described with reference to FIG.

10 is a cross-sectional view taken along line A-B of Fig.

10, an adhesion reducing member 233 is disposed on a part of the bending area BA and the first and second non-bending areas NBA1 and NBA2 and the first and second non-bending areas NBA1 and NBA2 The adhesive member 230 is disposed on a part of the adhesive layer 230.

The adhesion member 230 may be inserted into a plurality of grooves provided in the adhesion reducing member 233. [ Specifically, the adhesion reducing member 233 has a plurality of grooves in the first and second non-bending regions NBA1 and NBA2, and the adhesive member 230 can be inserted into the plurality of grooves.

Here, a plurality of grooves can be formed through a process such as punching the adhesion reducing member 233, and the structure of FIG. 10 can be obtained by filling the plurality of grooves with the adhesive member 230.

On the other hand, when bending the display device 100, an external force may be applied to the first and second non-bending regions NBA1 and NBA2 (except for the vicinity of both boundary regions of the bending region). Here, the vicinity of both borders of the bending area BA refers to the boundary between the bending area BA and the first and second non-bending areas NBA1 and NBA2 and the first and second non-bending areas NBA1 , NBA2).

Since the adhesive member 230 is inserted and trapped in the groove provided in the adhesion reducing member 233 in the embodiment of the present invention, even if stress is generated by the external force in the adhesive member 230, .

Therefore, even when the display device 100 is bent, it is possible to prevent a difference in thickness of the adhesive member 230 from occurring in each area.

11 is a view showing an adhesive member and an adhesion reducing member according to still another embodiment of the present invention.

11, the adhesive member 230 includes a first adhesive member 1131 positioned corresponding to at least one rim of the first and second non-bending areas NBA1 and NBA2, and the first and second non- 2 non-bending areas NBA1 and NBA2.

For example, as shown in Fig. 11, the first bonding member 1131 may be formed so that the edges of the first and second non-bending regions NBA1 and NBA2, except for the region adjacent to both boundary regions of the bending region BA, As shown in FIG. That is, the first adhesive member 1131 may be disposed so as to correspond to three edges of the first non-bending area NBA1 and the second non-bending area NBA2.

The first adhesive member 1131 is disposed so as to correspond to at least one rim of the first and second non-bending areas NBA1 and NBA2 so that the rigidity of the first and second non-bending areas NBA1 and NBA2, The support member 220 and the support member 240 can be firmly fixed. The second adhesive member 1132 is disposed inside the rim of the first and second non-bending regions NBA1 and NBA2 so that the rigid member (the first and the second non-bending regions NBA1 and NBA2) 220 and the support member 240 can be firmly fixed.

The adhesive abatement member 233 according to other embodiments of the present invention may be of a type of circular, elliptical, or polygonal in plan view.

A protective film for protecting the adhesive member 230 and the adhesion reducing member 233 may be attached to the upper surface of the adhesion member 230 and the adhesion reducing member 233 before bonding the adhesion reducing member 233 to the lower portion of the rigid member 220 .

It is necessary to remove the protective film in the step of bonding the adhesive member 230 and the adhesion reducing member 233 to the lower portion of the rigid member 220. The adhesive member 230 may be a flat type, By doing so, the protective film can be easily separated.

The plurality of second adhesive members 1132 may be spaced apart from each other, and the plurality of second adhesive members 1132 may be spaced apart from the first adhesive member 1131. The plurality of second adhesive members 1132 may be arranged so as to be spaced apart from each other and have a uniform gap, but the present invention is not limited thereto.

The first adhesive member 1131 is located at the periphery of the plurality of second adhesive members 1132. The adhesion reducing member 233 is located in the bending area BA. The adhesion reducing member 233 may also be located in the first and second non-bending regions NBA1 and NBA2. That is, the adhesion reducing member 233 of FIG. 11 may be located between the rigid member 220 and the support member 240.

Specifically, the adhesion reducing member 233 located in the first and second non-bending regions NBA1 and NBA2 may be positioned between the second bonding member 1132 and another second bonding member 1132 adjacent thereto. It may also be positioned between the second adhesive member 1132 and the first adhesive member 1131. [

That is, the adhesive member 230 including the first and second adhesive members 1131 and 1132 may be disposed only in a part of the first and second non-bending areas NBA1 and NBA2.

This makes it possible to prevent the thickness of the adhesive member 230 from being changed even when an external force is applied to the display device. This effect will be described in detail with reference to FIG. 12 as follows.

12 is a cross-sectional view taken along the line C-D in Fig.

12, an adhesion reducing member 233 is disposed on a part of the bending area BA and the first and second non-bending areas NBA1 and NBA2, and the first and second non-bending areas NBA1 and NBA2 The first and second adhesive members 1131 and 1132 are disposed.

The first adhesive member 1131 is positioned to correspond to a part of the rim of the first and second non-bending regions NBA1 and NBA2 and the second adhesive member 1132 Is located on the inner side of the first adhesive member 1131.

 In the first and second non-bending regions NBA1 and NBA2, the adhesion reducing member 233 is disposed between the first bonding member 1131 and the second bonding member 1132, and between the first bonding member 1131 and the second bonding member 1132, And is disposed between the second adhesive members 1132.

The first and second adhesive members 1131 and 1132 may be inserted into a plurality of grooves provided in the adhesion reducing member 233. Specifically, the adhesion reducing member 233 has a plurality of grooves in the first and second non-bending regions NBA1 and NBA2, and the first bonding member 1131 or the second bonding member 1132 is provided in the plurality of grooves. Can be inserted.

That is, since the first and second adhesive members 1131 and 1132 are inserted and trapped in the grooves provided in the adhesive reducing member 233, even if a stress due to an external force is generated in the adhesive member 230, Can not move to another area.

Therefore, even when the display device 100 is bent, it is possible to prevent a difference in thickness of the adhesive member 230 from occurring in each area.

At this time, the width W1 of the first adhesive member 1131 may be larger than the width W2 of the second adhesive member 1132, but is not limited thereto. The width W2 of the plurality of second adhesive members 1132 may be the same, but is not limited to the present invention, and may be different from each other.

11 and 12, the first adhesive member 1131 is arranged so as to correspond to the rim of the first and second non-bending areas NBA1 and NBA2 except for the area adjacent to both boundary areas of the bending area BA However, the present invention is not limited thereto. When the adhesive member 230 of the present invention includes the first adhesive member 1131, the first adhesive member 1131 is arranged so as to correspond to at least one rim of the first and second non-bending areas NBA1 and NBA2 Is sufficient.

The first adhesive member 1131 according to the embodiments of the present invention may be positioned as shown in Figs. 13 to 15. Fig.

13 to 15 are views showing various positions of the first adhesive member according to the embodiments of the present invention.

The first adhesive member 1131 according to the embodiments of the present invention corresponds to two edges of the first non-bending area NBA1 and two edges of the second non-bending area NBA2 as shown in FIG. Respectively.

14, the first adhesive member 1131 according to the embodiments of the present invention has one edge of the first non-bending region NBA1 and one edge of the second non-bending region NBA2, As shown in FIG.

15, the first adhesive member 1131 according to the embodiments of the present invention corresponds to the entire frame of the first non-bending region NBA1 and the entire frame of the second non-bending region NBA2 Respectively. That is, the first adhesive member 1131 may surround a plurality of second adhesive members 1132 corresponding to all the edges of the first and second non-bending regions NBA1 and NBA2.

On the other hand, at the time of bending the display device 100, the structures to be bent (except for the support member 240) are extended most near the boundary region between the bending region BA and the bending region BA. At this time, the first adhesive member 1131 located in the region adjacent to both the boundary regions of the adhesion reducing member 233 and the bending region BA has an external force (for example, tension) ).

That is, the adhesion reducing member 233 and the first adhesive member 1131 receive the greatest external force in the vicinity of the boundary region between the bending region BA and the bending region BA.

Since the first adhesive member 1131 is trapped in the groove provided in the adhesion reducing member 233, even if a stress due to an external force is generated in the first adhesive member 1131, Area. Therefore, the thickness of the first adhesive member 1131 located in the region adjacent to both boundary regions of the bending region BA can be adjusted by the first and second adhesive members 1131 and 1132 ) ≪ / RTI > thickness.

Since the first adhesive member 1131 is also located in a region adjacent to both boundary regions of the bending region BA, even in the region that receives the greatest tension when bending the display device 100, The support member 240 may be fixed without being detached.

16 is a cross-sectional view taken along line E-F of Fig.

16, an adhesion reducing member 233 is disposed on a part of the bending region BA and the first and second non-bending regions NBA1 and NBA2, and the first and second non-bending regions NBA1 and NBA2 The first and second adhesive members 1131 and 1132 are disposed.

At this time, the widths W1 and W3 of the first adhesive member 1131 may be larger than the width W2 of the second adhesive member 1132. [

The width W1 of the first adhesive member 1131 located outside the first and second nonbending regions NBA1 and NBA2 is set to be smaller than the width W1 of the first adhesive member 1131 located in the region adjacent to both boundary regions of the bending region BA, But may be different from the width W3 of the groove 1131, but the present invention is not limited thereto. That is, the width of the first adhesive member 1131 may vary according to the area in which the first adhesive member 1131 is located.

As described above, in the display device 100 according to the embodiments of the present invention, the first adhesive member 1131 is arranged to correspond to at least one rim in the first and second non-bending areas NBA1 and NBA2 The configuration is sufficient, and the position of the frame is not limited.

Up to now, the first and second bonding members 1131 and 1132 located in the first non-bending region NBA1 and the second non-bending region NBA2 are arranged symmetrically with respect to the bending region BA The present invention is not limited to this, but may be arranged asymmetrically as shown in Figs. 15 and 16. Fig.

17 is a view showing an embodiment in which the adhesive member of the present invention is disposed asymmetrically with respect to the bending region.

Referring to FIG. 17, the first adhesive member 1131 is disposed so as to correspond to the entire border of the first non-bending region NBA1, while the second non-bending region NBA2 is formed to correspond to only three of the four border regions. The first adhesive member 1131 is disposed.

In addition, the second adhesive member 1132 disposed in the first non-bending area NBA1 may be disposed at a first interval D1 with respect to the other second adhesive member 1132 adjacent in the horizontal direction and in the vertical direction . However, the second adhesive member 1131 disposed in the second non-bending area NBA1 is disposed with the first gap D1 in all of the adjacent second adhesive members 1132 in the horizontal direction, The second adhesive member 1132 may be disposed at a first interval D1 or at a second interval D2 different from the first interval D1.

That is, the first and second bonding members 1131 and 1132 may be disposed asymmetrically in the first and second non-bending regions NBA1 and NBA2 with respect to the bending region BA.

The positions of the first and second adhesive members 1131 and 1132 are not limited to those shown in FIG. 16 and are arranged in the first and second non-bending regions NBA1 and BNA2 with reference to the bending region BA in this embodiment. It is sufficient that at least one of the first adhesive member 1131 and the second adhesive member 1132 is located asymmetrically.

1 to 17, a description has been given of a configuration in which the bending area BA of the display device 100 is one and the non-bending area NBA is two. However, the display device according to the embodiments of the present invention is not limited thereto And may be a display device having the structure shown in Fig.

18 is a view schematically showing a display device according to another embodiment of the present invention. In the following description, the contents overlapping with the above-described embodiments may be omitted.

Referring to FIG. 18, the display device 100 according to another embodiment of the present invention includes a first bending area BA1 and a second bending area BA2. The first non-bending region NBA1 and the second non-bending region NBA2 are disposed with the first bending region BA1 therebetween, and the second non-bending region BA2 with the second bending region BA2 therebetween. (NBA2) and a third non-bending region (NBA3) are arranged.

The first bending area BA1 and the second bending area BA2 may be bent in the same direction or in different directions.

An adhesion reducing member 233 is disposed in the first and second bending regions BA1 and BA2. Bonding members 230 are disposed on the first to third non-bending regions NBA1, NBA2, and NBA3.

Specifically, in the first and second bending areas BA1 and BA2, the adhesion reducing member 233 is positioned between the rigid member 220 and the support member 240, and the first to third non-bending areas NBA1 and NBA2 , NBA3), an adhesive member 230 is positioned between the rigid member 220 and the support member 240. [

The support member 240 of the embodiment of the present invention may include a first support member 241, a second support member 242, and a third support member 1843.

When the display device 100 is bent in the first and second bending areas BA1 and BA2, the first and second support members 241 and 242 are bent in the first bending area BA1, The second support member 242 and the third support member 1843 are separated on the basis of the second bending reference line BL2 in the second bending area BA2 .

18, the display device 100 includes two bending areas BA1 and BA2. However, the present invention is not limited to this, and the display device 100 may include two or more bending areas BA1 and BA2 Configuration can also be included.

Accordingly, the display device 100 according to the embodiments of the present invention can provide the display device 100 capable of bending at one or more bending areas and bending at will.

As described above, according to the embodiments of the present invention described above, it is possible to provide a display device having a structure capable of improving the image quality by preventing the display colors from being different according to the viewing angle in the bendable display device.

According to the embodiments of the present invention, a display device having a structure capable of reducing the thickness of a bendable display device can be provided.

According to the embodiments of the present invention, it is possible to provide a display device having a structure in which a support member, which is a mechanism disposed at a lower portion of a display panel in a bendable display device, does not hinder bending of the display device.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. , Separation, substitution, and alteration of the invention will be apparent to those skilled in the art.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100: display device
210: Display panel
220: Rigidity member
230: Adhesive member
233: Adhesion reduction member
240: support member

Claims (16)

A display panel having a bending region with a bending reference line and a non-bending region adjacent to the bending region;
A rigid member disposed under the display panel; And
And a support member disposed under the rigid member,
Wherein the rigid member is bendable at a portion corresponding to the bending region,
Wherein the support member is separated from the bending reference line when the display panel rigid member is bent,
A bonding reducing member is positioned between the rigid member and the supporting member corresponding to the bending region,
And an adhesive member is disposed between the rigid member and the support member corresponding to the non-bending region.
The method according to claim 1,
Wherein the adhesive member and the adhesion reducing member are located in the same layer.
The method according to claim 1,
Wherein the adhesion reducing member extends in a direction away from the bending reference line and is positioned between the rigid member and the support member corresponding to the non-bending region.
The method of claim 3,
Wherein the adhesive abatement member surrounds the adhesive member.
The method according to claim 1,
Wherein the adhesive member includes a first adhesive member positioned corresponding to at least one rim of the non-bending region.
6. The method of claim 5,
Wherein the adhesive member includes a plurality of second adhesive members located between the first adhesive member and the adhesion reducing member corresponding to the non-bending region.
The method according to claim 6,
Wherein the first bonding member surrounds the plurality of second bonding members in correspondence with all rims of the non-bending region.
The method according to claim 6,
Wherein each of the plurality of second adhesive members is one of a circle, an ellipse, and a polygon on a plane.
The method according to claim 1,
Wherein the adhesive member and the adhesion reducing member have a corresponding height.
The method according to claim 1,
Wherein the thickness of the rigid member is thinner than the thickness of the support member.
The method according to claim 1,
Wherein in the rigid member, a portion corresponding to the bending region and a portion corresponding to the non-bending region have different surfaces.
12. The method of claim 11,
In the rigid member, a plurality of grooves are present on a surface of a portion corresponding to the bending region.
The method according to claim 1,
Wherein the display panel and the rigid member are bendable in at least two bending areas.
The method according to claim 1,
Wherein the non-bending region includes a first non-bending region and a second non-bending region respectively located on one side and the other side of the bending region,
Wherein the support member comprises:
A first support member corresponding to the first region of the bending region and the first non-bending region,
And a second support member corresponding to the second region of the bending region and the second non-bending region,
When bending the display panel and the rigid member,
Wherein the first support member is spaced apart from all or a portion of the first region of the bending region,
Wherein the second support member is spaced apart from all or a portion of the second region of the bending region.
A display panel having a bending region with a bending reference line and a non-bending region adjacent to the bending region;
A rigid member disposed under the display panel; And
And a support member disposed under the rigid member,
Wherein the display panel and the rigid member are bendable at a portion corresponding to the bending area,
Wherein the supporting member is separated from the bending reference line when the display panel and the rigid member are bent,
An adhesive member is disposed between the rigid member and the support member,
Wherein the adhesive force of the portion corresponding to the bending region and the adhesive force of the portion corresponding to the non-bending region of the adhesive member are different from each other.
A display panel having a bending region with a bending reference line and a non-bending region adjacent to the bending region;
A rigid member disposed under the display panel; And
And a support member disposed under the rigid member,
Wherein the display panel and the rigid member are bendable at a portion corresponding to the bending area,
Wherein the support member is separated based on a bending reference line in the bending area when the display panel and the rigid member are bent,
An adhesive member is disposed between the rigid member and the support member,
The hardness of the portion corresponding to the bending region and the hardness of the portion corresponding to the non-bending region are different from each other in the adhesive member.

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