Display device and electronic equipment

Abstract

The application discloses a display device and an electronic equipment. The display device comprises a display area and a frame area on at least one side of the display area. The display device comprises a display panel, a back plate, a barrier layer and a support plate. The back plate is arranged on one side of the display panel. The barrier layer is arranged on the side of the back plate away from the display panel. The support plate is arranged on the side of the barrier layer away from the back plate. The side of the support plate facing the display panel is provided with a groove. The groove is located in the frame area. The groove depth is less than the thickness of the support plate. In the thickness direction of the display panel, the projections of the barrier layer and the back plate on the surface of the support plate cover the groove. The technical problem of dislocation between materials of the existing display device when being bent is overcome. The display device edge wire fracture is reduced. The reliability of the display device RA is improved.

Description

Technical Field

[0001] This application belongs to the field of display technology, and in particular relates to a display device and an electronic device. Background Technology

[0002] As the market for flexible display devices gains increasing favor, the folding performance of foldable flexible displays has attracted significant attention. Foldable displays reduce the space required for handling and placement, significantly improving convenience while maintaining functionality, making them a popular research area. However, the display industry's pursuit of narrow bezels has led to further reductions in display device bezels. This, coupled with material dislocations during dynamic and static bending, poses risks of circuit breakage and resistance (RA). Summary of the Invention

[0003] This application provides a display device and an electronic device to solve the technical problem of material dislocations in existing display devices when bent.

[0004] In a first aspect, embodiments of this application provide a display device, including a display area and a border area located on at least one side of the display area, the display device comprising:

[0005] Display panel;

[0006] A back panel is disposed on one side of the display panel;

[0007] A barrier layer is disposed on the side of the back panel opposite to the display panel;

[0008] A support plate is disposed on the side of the barrier layer opposite to the back plate;

[0009] The support plate has a groove on the side facing the display panel. The groove is located within the frame area. The depth of the groove is less than the thickness of the support plate. Along the thickness direction of the display panel, the projection of the barrier layer and the back plate onto the surface of the support plate covers the groove.

[0010] Optionally, the display panel includes:

[0011] The display unit corresponds to the display area;

[0012] A binding part is provided on one side of the display part;

[0013] The bending portion has one end connected to the display portion and the other end bent toward the side of the display portion near the binding portion and connected to the binding portion. Along the thickness direction of the display panel, the projection of the groove on the surface of the display panel is located between the display portion and the bending portion.

[0014] Optionally, a polarizing layer is also included, the polarizing layer being located on the side of the display panel away from the support plate, the groove including a first groove wall and a second groove wall disposed opposite to each other, the second groove wall being closer to the display area than the first groove wall, and along the thickness direction of the display panel, the projection of one end of the polarizing layer in the frame area on the surface of the support plate being located between the first groove wall and the second groove wall.

[0015] Optionally, a polarizing layer is also included, the polarizing layer being located on the side of the display panel away from the support plate, the groove including a first groove wall and a second groove wall disposed opposite to each other, the second groove wall being closer to the display area than the first groove wall, along the thickness direction of the display panel, the projection of one end of the polarizing layer in the frame area on the surface of the support plate being located on the side of the second groove wall away from the first groove wall.

[0016] Optionally, along the thickness direction of the display panel, the cross-sectional shape of the groove is rectangular, trapezoidal, arc-shaped, or triangular.

[0017] Optionally, an adhesive layer is provided between the support plate and the barrier layer, the adhesive layer connects the support plate and the barrier layer, and the adhesive layer covers the other areas of the support plate except for the groove.

[0018] Optionally, the groove includes a first groove wall and a second groove wall disposed opposite to each other, and the distance between the first groove wall and the second groove wall is D, 0.3mm≤D≤1mm;

[0019] And / or, the groove includes a first groove wall and a second groove wall disposed opposite to each other, the second groove wall being closer to the display area than the first groove wall, and the distance between the first groove wall and the side of the frame area away from the display area is L, 1mm≤L<2mm;

[0020] And / or, the depth of the groove is H, 30μm≤H≤50μm;

[0021] And / or, the groove includes a first groove wall and a second groove wall disposed opposite to each other, the second groove wall being closer to the display area than the first groove wall, the distance between the first groove wall and the side of the frame area away from the display area being L, the distance between the first groove wall and the second groove wall being D, and the width of the support plate within the frame area being S, where L+D<S.

[0022] Optionally, the groove is continuously provided along the width direction of the display panel;

[0023] Alternatively, multiple recesses may be spaced apart along the width direction of the display panel.

[0024] Optionally, the groove includes a plurality of sub-grooves, which are spaced apart along the width direction of the border area.

[0025] Secondly, embodiments of this application also provide an electronic device, including any of the display devices described above.

[0026] The display device and electronic device provided in this application include a display panel, a back plate, a barrier layer, and a support plate stacked together. By creating a groove on the side of the support plate facing the display panel, the depth of the groove is less than the thickness of the support plate. The groove is located within the bezel area. Along the thickness direction of the display panel, the projections of the barrier layer and the back plate cover the groove. When the display device is bent, the back plate and the barrier layer protrude into the groove, which can reduce material dislocations in the bezel area of ​​the display device. This overcomes the technical problem of material dislocations in existing display devices when bent, reduces edge trace breakage, and improves the reliability of the display device RA. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0029] Figure 1 This is a cross-sectional schematic diagram of a display device provided in an embodiment of this application.

[0030] Figure 2 This is a cross-sectional schematic diagram of the display device in a bent state provided in an embodiment of this application.

[0031] Figure 3 This is a cross-sectional schematic diagram of a first form of the dynamic display device provided in the embodiments of this application.

[0032] Figure 4 This is a cross-sectional schematic diagram of a second form of the dynamic display device provided in the embodiments of this application.

[0033] Figure 5 This is a top view of the support plate of the display device provided in an embodiment of this application.

[0034] Figure 6 This is a cross-sectional view of the display device support plate provided in an embodiment of this application.

[0035] Figure 7This is a top view of a third form of the display device provided in the embodiments of this application.

[0036] Figure 8 This is a top view of a fourth form of the display device provided in the embodiments of this application.

[0037] Figure 9 This is a top view of a fifth form of the display device provided in the embodiments of this application. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] This application provides a display device to solve the technical problem of material dislocations in existing display devices when bent. The following description is in conjunction with the accompanying drawings.

[0040] See Figure 1 and Figure 2 As shown, Figure 1 This is a cross-sectional schematic diagram of the display device provided in the embodiments of this application. Figure 2 This is a cross-sectional schematic diagram of the display device in a bent state provided in an embodiment of this application.

[0041] A display device includes a display area and a frame area AB located on at least one side of the display area AA. The display device includes a display panel 100, a back plate 200, a barrier layer 300, and a support plate 400 stacked together. The back plate 200 is disposed on one side of the display panel 100, and the barrier layer 300 is located between the back plate 200 and the support plate 400. The support plate 400 has a groove 410 on the side facing the display panel 100. The groove 410 is located in the frame area AB. Along the thickness direction of the display panel 100, the projections of the barrier layer 300 and the back plate 200 on the support plate 400 cover the groove 410.

[0042] In this embodiment, by using the groove 410 of the support plate 400 opening toward the display panel 100, when the display device is bent, the back plate 200 and the barrier layer protrude into the groove, which can reduce the material dislocation in the frame area of ​​the display device, reduce the breakage of the edge traces of the display device, and improve the reliability of the display device RA.

[0043] The display device will be described in detail below with reference to the accompanying drawings.

[0044] See Figure 1As shown, the display device includes a display panel 100, a back plate 200, a barrier layer 300, a support plate 400, and a substrate 500 stacked together. The display device includes a display area AA and a border area AB. The display panel 100 includes a display part 110, a binding part 120, and a bending part 130. The display part 110 corresponds to the display area AA. The binding part 120 is disposed on one side of the display part 110. One end of the bending part 130 is connected to the display part 110, and the other end is bent toward the side of the display part 110 near the binding part 120 and connected to the binding part 120. Along the thickness direction of the display panel 100, the projection of the groove 410 on the surface of the display panel 100 is located between the display part 110 and the bending part 130.

[0045] See Figure 3 As shown, Figure 3 This is a cross-sectional schematic diagram of a first form of the dynamic display device provided in the embodiments of this application.

[0046] The display panel 100 includes at least one bent area 140 and a non-bent area 150 connected to the bent area 140. The bent area 140 is connected between two non-bent areas 150. The support plate 400 includes a first main body area 420 and a second main body area 430. The first main body area 420 corresponds to the bent area 140, and the second main body area 430 corresponds to the non-bent area 150. The first main body area 420 is located between the two second main body areas 430. A groove 410 is disposed on the second main body area 430, and the groove 410 is located on the side of the second main body area 430 away from the first main body area 420.

[0047] In this embodiment, the groove 410 is set in the border area AB, and the position of the groove 410 does not exceed the border area AB and enters the display area AA, so as to avoid affecting the display effect of the display area AA.

[0048] In some implementations, see Figure 1 , Figure 5 and Figure 6 As shown, Figure 6 The cross-sectional view of the support plate 400 provided in the embodiment of this application shows that the display device also includes a polarizing layer 600. The polarizing layer 600 is located on the side of the display panel 100 away from the support plate 400. The groove 410 includes a first groove wall 411 and a second groove wall 412 disposed opposite to each other. The second groove wall 412 is closer to the display area AA than the first groove wall 411. Along the thickness direction of the display panel, the projection of the polarizing layer 600 at one end of the frame area AB on the surface of the support plate 400 is located between the first groove wall 411 and the second groove wall 412.

[0049] Understandable, see Figure 2As shown, when the display device is bent, the end of the polarizing layer 600 presses against the display panel 100, the back plate 200, and the barrier layer 300. The material deformation of the display panel 100, the back plate 200, and the barrier layer 300 is greatest at the end of the polarizing layer 600, causing material dislocations. The two side walls of the groove 410 are placed across the two sides of the end of the polarizing layer 600. The part of the display panel 100, the back plate 200, and the barrier layer 300 at the end of the polarizing layer 600 where the material deformation is greatest arches slightly into the groove 410. By making reasonable use of the width within the frame area AB, the width of the groove area 410 that can be used for material dislocation absorption can be relatively large, resulting in good material dislocation absorption and ensuring the display effect.

[0050] In some embodiments, a polarizing layer 600 is also included. The polarizing layer 600 is located on the side of the display panel 100 away from the support plate 400. The groove 410 includes a first groove wall 411 and a second groove wall 412 disposed opposite to each other. The second groove wall 412 is closer to the display area AA than the first groove wall 411. Along the thickness direction of the display panel 100, the projection of the polarizing layer 600 at one end of the frame area AB on the surface of the support plate 400 is located on the side of the second groove wall 412 away from the first groove wall 411.

[0051] Understandably, when the display device is bent, the polarizing layer 600 pushes the display panel 100, back plate 200 and barrier layer 300 outward, and sets the groove 410 on the outer side of the end of the polarizing layer 600. The maximum deformation of the materials of the display panel 100, back plate 200 and barrier layer 300 must be located in the groove 410, reducing dislocations at the edge. The groove 410 can accurately absorb the influence of material dislocations, and the dislocation absorption effect is good, reducing the risk of breakage of the edge traces of the display panel 100.

[0052] In addition, see Figure 1 As shown, the display device also includes a cover plate 700, which is disposed on the side of the polarizing layer 600 away from the display panel 100. The size of the cover plate 700 is the same as that of the polarizing layer 600. The cover plate 700 and the polarizing layer 600 together push against the display panel 100, the back plate 200 and the barrier layer 300.

[0053] See Figure 4 As shown, Figure 4 This is a cross-sectional schematic diagram of a second form of the dynamic display device provided in the embodiments of this application.

[0054] Based on the above embodiment, the display device further includes an adhesive layer 800, which is located between the support plate 400 and the barrier layer 300. The adhesive layer 800 connects the support plate 400 and the barrier layer 300, and covers the area of ​​the support plate 400 except for the groove 410. A glue-free area is provided at the groove 410 location to prevent the adhesive layer 800 from adhering to the sidewall of the groove 410 after the display device is bent, thus preventing layer peeling.

[0055] In other embodiments, the support plate 400 and the barrier layer 300 can be connected by vacuum bonding or by a combination of vacuum bonding and adhesive bonding.

[0056] In some implementations, see Figure 1 As shown, along the thickness direction of the display panel, the cross-sectional shape of the groove 410 is rectangular, trapezoidal, arc-shaped, or triangular. The groove 410 can be machined on the support plate 400 by etching or laser processing, which is a simple process.

[0057] In some implementations, see Figure 6 As shown, along the thickness direction of the display panel 100, the groove 410 includes a first groove wall 411 and a second groove wall 412 disposed opposite to each other. The distance between the first groove wall 411 and the second groove wall 412 is D, 0.3mm≤D≤1mm. D can be 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm or other unlisted values.

[0058] In some implementations, see Figure 6 As shown, the groove 410 includes a first groove wall 411 and a second groove wall 412 disposed opposite to each other. The second groove wall 412 is closer to the display area AA than the first groove wall 411. The distance between the first groove wall 411 and the side of the frame area AB away from the display area AA is L, where 1mm≤L<2mm. L can be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm or other unlisted values.

[0059] Understandable, see Figure 6 As shown, in order to ensure that the groove 410 is located within the border area AB, the sum of the distance D between the first groove wall 411 and the second groove wall 412 of the groove 410 and the distance L between the first groove wall 411 and the side of the border area AB away from the display area AA should be less than the width of the border area AB.

[0060] In some embodiments, the depth of the groove 410 is H, 30μm≤H≤50μm, where H can be 30μm, 35μm, 40μm, 45μm, 50μm or other unlisted values.

[0061] The parameters of L, D, and H of the groove 410 can be set comprehensively as needed to ensure the support effect of the support plate 400 and the display effect of the display panel 100 while satisfying dislocation absorption.

[0062] In some implementations, see Figure 6 As shown, the groove 410 includes a first groove wall 411 and a second groove wall 412 disposed opposite to each other. The second groove wall 412 is closer to the display area AA than the first groove wall 411. The distance between the first groove wall 411 and the side of the frame area AB away from the display area AA is L. The distance between the first groove wall 411 and the second groove wall 412 is D. The width of the support plate within the frame area AB is S, where L+D<S. For example, L+D=S / 2, L+D=2S / 3, L+D=3S / 4, etc., ensure that the groove 410 is located within the frame area AB and prevents the groove 410 from extending into the display area AA, thus ensuring the display effect of the display device.

[0063] See Figure 7 As shown, Figure 7 This is a top view of a third form of the display device provided in the embodiments of this application.

[0064] In some embodiments, the groove 410 is continuously provided along the width direction of the display panel 100. It can be understood that by providing a groove 410, a continuous and uninterrupted dislocation absorption region is formed, thereby achieving a dislocation absorption effect.

[0065] See Figure 8 As shown, Figure 8 This is a top view of a fourth form of the display device provided in the embodiments of this application.

[0066] As a variation, multiple grooves 410 are provided, spaced apart along the width direction of the display panel 100. The distance between adjacent grooves 410 is equal, and the support plate 400 between adjacent grooves 410 has a supporting function. While satisfying the misalignment absorption, it also provides a good supporting effect, thereby improving the reliability of the display device.

[0067] See Figure 9 , Figure 9 This is a top view of a fifth form of the display device provided in the embodiments of this application.

[0068] In some embodiments, the groove 410 includes a plurality of sub-grooves 413, which are spaced apart along the width direction of the border area AB.

[0069] Understandably, the distance between adjacent sub-slots 413 can be set to be the same, and the width and depth of each sub-slot 413 can be the same. The size of each sub-slot 413 is small, which will not affect the performance of the support plate 400 and can also achieve the effect of misalignment absorption.

[0070] This application also provides an electronic device, including a display device and a terminal body as described above, wherein the display device is fixed to the terminal body. The electronic device can be a mobile terminal, such as an in-vehicle display, smartphone, tablet computer, or laptop computer; it can also be a wearable terminal, such as a smartwatch, smart bracelet, smart glasses, or augmented reality device; or it can be a fixed terminal, such as a desktop computer or television.

[0071] See Figure 1 and Figure 2 As shown, the display device includes a display area and a bezel area AB located on at least one side of the display area AA. The display device includes a display panel 100, a back plate 200, a barrier layer 300, and a support plate 400 stacked together. The back plate 200 is disposed on one side of the display panel 100, and the barrier layer 300 is located between the back plate 200 and the support plate 400. The support plate 400 has a groove 410 on the side facing the display panel 100. The groove 410 is located within the bezel area AB. Along the thickness direction of the display panel 100, the projections of the barrier layer 300 and the back plate 200 onto the surface of the support plate 400 cover the groove 410. By using the groove 410 in the support plate 400 that opens towards the display panel 100, when the display device is bent, the back plate 200 and the barrier layer protrude into the groove, which can reduce material dislocations in the bezel area of ​​the display device, reduce edge trace breakage, and improve the reliability of the display device AA.

[0072] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0073] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0074] The display device and electronic device provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display device comprising a display area and a border area located on at least one side of the display area, characterized in that, The display device includes: Display panel; A back panel is disposed on one side of the display panel; A barrier layer is disposed on the side of the back panel opposite to the display panel; A support plate is disposed on the side of the barrier layer opposite to the back plate; The support plate has a groove on the side facing the display panel. The groove is located in the frame area. The depth of the groove is less than the thickness of the support plate. Along the thickness direction of the display panel, the projection of the barrier layer and the back plate on the surface of the support plate covers the groove. It also includes a polarizing layer, which is located on the side of the display panel away from the support plate. The groove includes a first groove wall and a second groove wall disposed opposite to each other. The second groove wall is closer to the display area than the first groove wall. Along the thickness direction of the display panel, the projection of one end of the polarizing layer in the frame area on the surface of the support plate is located on the side of the second groove wall away from the first groove wall, or the projection of one end of the polarizing layer in the frame area on the surface of the support plate is located between the first groove wall and the second groove wall.

2. The display device according to claim 1, characterized in that, The display panel includes: The display unit corresponds to the display area; A binding part is provided on one side of the display part; The bending portion has one end connected to the display portion and the other end bent toward the side of the display portion near the binding portion and connected to the binding portion. Along the thickness direction of the display panel, the projection of the groove on the surface of the display panel is located between the display portion and the bending portion.

3. The display device according to claim 1, characterized in that, Along the thickness direction of the display panel, the cross-sectional shape of the groove is rectangular, trapezoidal, arc-shaped, or triangular.

4. The display device according to claim 1, characterized in that, An adhesive layer is provided between the support plate and the barrier layer, the adhesive layer connects the support plate and the barrier layer, and the adhesive layer covers the other areas of the support plate except for the groove.

5. The display device according to claim 1, characterized in that, The groove includes a first groove wall and a second groove wall disposed opposite to each other, and the distance between the first groove wall and the second groove wall is D, 0.3mm≤D≤1mm; And / or, the groove includes a first groove wall and a second groove wall disposed opposite to each other, the second groove wall being closer to the display area than the first groove wall, and the distance between the first groove wall and the side of the frame area away from the display area is L, 1mm≤L<2mm; And / or, the depth of the groove is H, 30μm≤H≤50μm; And / or, the groove includes a first groove wall and a second groove wall disposed opposite to each other, the second groove wall being closer to the display area than the first groove wall, the distance between the first groove wall and the side of the frame area away from the display area being L, the distance between the first groove wall and the second groove wall being D, and the width of the support plate within the frame area being S, where L+D<S.

6. The display device according to claim 1, characterized in that, The grooves are continuously provided along the width direction of the display panel; Alternatively, multiple recesses may be spaced apart along the width direction of the display panel.

7. The display device according to claim 1, characterized in that, The groove includes multiple sub-grooves, which are spaced apart along the width direction of the border area.

8. An electronic device, characterized in that, include: The display device as claimed in any one of claims 1 to 7.

Images