CN-122003042-A - Display device

Abstract

A display device is provided. The display device includes an active region in which a plurality of sub-pixels are disposed, a first non-active region surrounding the active region, a bending region extending from the first non-active region, and a second non-active region extending from the bending region, the display device includes a first substrate disposed in the active region and the first non-active region, a second substrate disposed in the second non-active region and spaced apart from the first substrate, and a plurality of insulating layers disposed on the first substrate and the second substrate and extending to the bending region, wherein at least a portion of the plurality of insulating layers includes a plurality of first holes disposed in the bending region in a bending direction.

Inventors

• Jiang Xinche
• LI GUIGAO
• XU MEIJUAN
• Pu Shengzhen

Assignees

• 乐金显示有限公司

Dates

Publication Date

20260508

Application Date

20250930

Priority Date

20241104

Claims (20)

1. 1. A display device, which is used for displaying a display image, The display device includes an active region in which a plurality of sub-pixels are disposed, a first inactive region surrounding the active region, a curved region extending from the first inactive region, and a second inactive region extending from the curved region, the display device includes: A first substrate disposed in the active region and the first inactive region; a second substrate disposed in the second inactive region and spaced apart from the first substrate, and A plurality of insulating layers disposed on the first and second substrates and extending to the bending region, Wherein at least a portion of the plurality of insulating layers includes a plurality of first holes disposed in the bending region in a bending direction.
2. 2. The display device according to claim 1, further comprising: a micro-coating disposed above and below the plurality of insulating layers in the bending region.
3. 3. The display device of claim 2, wherein the micro-coating further comprises a portion disposed to fill in the plurality of first holes.
4. 4. The display device according to claim 1, wherein the first substrate and the second substrate are glass substrates.
5. 5. The display device of claim 1, wherein a planar shape of the plurality of first holes is square or rectangular.
6. 6. The display device according to claim 1, further comprising: Connecting lines provided in a central portion of the bending region and supplying signals to the plurality of sub-pixels, Wherein the plurality of first holes are provided in both sides of the central portion in the bending region where the connecting lines are provided.
7. 7. The display device according to claim 1, wherein the plurality of first holes are arranged to be spaced apart in parallel in a direction intersecting the bending direction.
8. 8. The display device of claim 7, wherein respective ends of the plurality of first holes are positioned in a boundary of the curved region.
9. 9. The display device of claim 7, wherein the plurality of first holes have the same length and are disposed to be staggered with respect to each other.
10. 10. The display device according to claim 7, wherein the plurality of first holes are provided to be spaced apart from each other in the bending direction.
11. 11. The display device of claim 10, wherein the plurality of first holes have different lengths and are arranged to interleave with each other.
12. 12. The display device of claim 1, wherein the plurality of insulating layers further comprises a plurality of second holes disposed in the first and second inactive regions adjacent to the curved region along the curved direction.
13. 13. The display device of claim 12, wherein the plurality of insulating layers comprises: a first insulating layer; A second insulating layer on the first insulating layer, and A bank layer on the second insulating layer, and The plurality of second holes are provided in the first insulating layer, the second insulating layer, and the bank layer.
14. 14. The display device according to claim 13, wherein the plurality of first holes are provided in the first insulating layer, the second insulating layer, and the bank layer.
15. 15. The display device according to claim 13, wherein the plurality of first holes are provided in the second insulating layer and the bank layer.
16. 16. The display device of claim 1, wherein the first substrate and the second substrate each have an inclined or concave side surface adjacent to the curved region.
17. 17. A display device, comprising: A plurality of insulating layers including an active region in which a plurality of sub-pixels are disposed, a first inactive region surrounding the active region, a bent region extending from the first inactive region, and a second inactive region extending from the bent region; A first substrate disposed under the plurality of insulating layers in the active region and the first inactive region; A second substrate disposed below the plurality of insulating layers in the second inactive region and spaced apart from the first substrate; A plurality of first holes provided in at least a part of the plurality of insulating layers in a bending direction in the bending region, and A micro-coating layer including a portion disposed above and below the plurality of insulating layers in the bending region and another portion filled in the plurality of first holes.
18. 18. The display device according to claim 1, wherein a planar shape of the plurality of first holes is square or rectangular, and the plurality of first holes are arranged to be spaced apart from each other in parallel in a direction intersecting the bending direction and to be staggered.
19. 19. The display device of claim 18, wherein the plurality of insulating layers further comprises a plurality of second holes disposed in the first and second inactive regions adjacent to the curved region along the curved direction.
20. 20. The display device of claim 19, wherein the plurality of insulating layers comprises: a first insulating layer; A second insulating layer on the first insulating layer, and A bank layer on the second insulating layer, and The plurality of first holes are provided in the first insulating layer, the second insulating layer, and the bank layer, and the plurality of second holes are provided in the first insulating layer, the second insulating layer, and the bank layer.

Description

Display device Cross Reference to Related Applications The present application claims priority from korean patent application No. 10-2024-0154272 filed at the korean intellectual property office on day 11 and 4 of 2024, the disclosure of which is incorporated herein by reference. Technical Field The present disclosure relates to a display device, and more particularly, to a display device that suppresses crack propagation when it is bent. Background In general, a display apparatus is widely used as a display screen of various electronic devices such as a mobile communication terminal, an electronic notebook, an electronic book, a portable multimedia player (portable multimedia player, PMP), an Ultra Mobile PC (UMPC), a mobile phone, a smart phone, a tablet computer (personal computer), an electronic tablet, a wearable device, a watch phone, a portable information device, navigation, a vehicle control display device, a television, a notebook, and a monitor. Recently, a display device realizing a maximum screen by reducing a bezel area where an image is not displayed in the case of the same-sized display panel is being studied and developed. Disclosure of Invention An object to be achieved by the present disclosure is to provide a display device that reduces stress generated in a bending region and improves reliability. An object to be achieved by the present disclosure is to provide a display device that suppresses generation and expansion of cracks upon bending. The objects of the present disclosure are not limited to the above objects, and other objects not mentioned above will be clearly understood by those skilled in the art from the following description. According to one aspect of the present disclosure, a display device includes an active region in which a plurality of sub-pixels are disposed, a first non-active region surrounding the active region, a curved region extending from the first non-active region, and a second non-active region extending from the curved region, the display device includes a first substrate disposed in the active region and the first non-active region, a second substrate disposed in the second non-active region and spaced apart from the first substrate, and a plurality of insulating layers disposed on the first substrate and the second substrate and extending to the curved region, wherein at least a portion of the plurality of insulating layers includes a plurality of first holes disposed in the curved region in a curved direction. According to another aspect of the present disclosure, a display device includes a plurality of insulating layers including an active region in which a plurality of sub-pixels are disposed, a first inactive region surrounding the active region, a bent region extending from the first inactive region, and a second inactive region extending from the bent region, a first substrate disposed under the plurality of insulating layers in the active region and the first inactive region, a second substrate disposed under the plurality of insulating layers and spaced apart from the first substrate in the second inactive region, a plurality of first holes disposed in at least a portion of the plurality of insulating layers in a bending direction in the bent region, and a micro-coating layer disposed over and under the plurality of insulating layers and filled in the plurality of first holes in the bent region. Other details of the exemplary embodiments are included in the detailed description and the accompanying drawings. According to the present disclosure, stress densely generated in a portion of a bending region during a manufacturing process is suppressed and cracking is minimized, thereby improving reliability. According to the present disclosure, crack propagation generated in a bending region upon bending to other regions is suppressed. Effects according to the present disclosure are not limited to the above-exemplified matters, and more various effects are included in the present specification. Drawings The above and other aspects, features and other advantages of the present disclosure will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which: fig. 1 is a plan view of a display device according to an exemplary embodiment of the present disclosure; fig. 2 is a cross-sectional view of a subpixel of a display device according to an exemplary embodiment of the present disclosure; fig. 3 is a plan view of the region a and the region B of fig. 1 enlarged; FIG. 4 is a cross-sectional view taken along C-C' of FIG. 3; FIG. 5 is a cross-sectional view taken along D-D' of FIG. 3; fig. 6 is a cross-sectional view of an inactive area of a display device according to another exemplary embodiment of the present disclosure; fig. 7 is an enlarged plan view of a display device according to still another exemplary embodiment of the present disclosure; Fig. 8 is an enlarged plan view of a display