KR-20260066357-A - DISPLAY DEVICE

Abstract

A display device according to an embodiment of the present specification comprises a display area in which a plurality of subpixels are arranged, a first non-display area surrounding the display area, a bending area extending from the first non-display area, and a second non-display area extending from the bending area, wherein the display device comprises a first substrate arranged in the display area and the first non-display area, a second substrate arranged in the second non-display area and spaced apart from the first substrate, and a plurality of insulating layers arranged on the first substrate and the second substrate and extending into the bending area, and at least a portion of the plurality of insulating layers comprises a plurality of first holes arranged along the bending direction in the bending area.

Inventors

• 강신철
• 이규호
• 서미연
• 박성진

Assignees

• 엘지디스플레이 주식회사

Dates

Publication Date

20260512

Application Date

20241104

Claims (20)

1. A display device comprising a display area in which a plurality of subpixels are arranged, a first non-display area surrounding the display area, a bending area extending from the first non-display area, and a second non-display area extending from the bending area, A first substrate disposed in the above-mentioned display area and the above-mentioned first non-display area; A second substrate disposed in the second non-display area and spaced apart from the first substrate; and It includes a plurality of insulating layers disposed on the first substrate and the second substrate and extending into the bending region. A display device comprising at least a portion of the plurality of insulating layers, the plurality of first holes arranged along the bending direction in the bending region.
2. In Article 1, A display device further comprising a micro-coating layer disposed on the upper and lower portions of the plurality of insulating layers in the bending region.
3. In Article 2, The above micro-coating layer is, A display device arranged to fill the plurality of first holes.
4. In Article 1, A display device in which the first substrate and the second substrate are glass substrates.
5. In Article 1, The above plurality of first holes are a display device having a planar shape that is square or rectangular.
6. In Article 1, It further includes a link wiring disposed in the central part of the bending region and applying a signal to the plurality of subpixels, The above plurality of first holes are a display device arranged on both sides of the central portion where the bending area and the link wiring are arranged.
7. In Article 1, The above plurality of first holes are, A display device spaced apart and arranged parallel to the direction intersecting the bending direction.
8. In Article 7, A display device in which each of the above plurality of first holes has both ends located at the boundary of the bending area.
9. In Article 7, The above plurality of first holes are, Display devices having the same length and arranged offset from each other.
10. In Article 7, The above plurality of first holes are, A display device spaced apart from each other in the above bending direction.
11. In Article 10, The above plurality of first holes are, Display devices having different lengths and arranged offset from each other.
12. In Article 1, The above plurality of insulating layers A display device further comprising a plurality of second holes arranged along the bending direction in the first non-display area and the second non-display area adjacent to the bending area.
13. In Article 12, The above plurality of insulating layers are, First insulating layer; A second insulating layer on the first insulating layer; and It includes a bank layer on the second insulating layer, and The plurality of second holes are a display device disposed in the first insulating layer, the second insulating layer, and the bank layer.
14. In Article 13, The above plurality of first holes are, A display device disposed on the first insulating layer, the second insulating layer, and the bank layer.
15. In Article 13, The above plurality of first holes are, A display device disposed in the second insulating layer and the bank layer.
16. In Article 1, Each of the first substrate and the second substrate is, A display device having a side adjacent to the bending area formed by a slanted or concave surface.
17. A plurality of insulating layers comprising a display area in which a plurality of subpixels are arranged, a first non-display area surrounding the display area, a bending area extending from the first non-display area, and a second non-display area extending from the bending area; A first substrate disposed below the plurality of insulating layers in the above display area and the above first non-display area; A second substrate disposed below the plurality of insulating layers in the second non-display area and spaced apart from the first substrate; A plurality of first holes disposed along the bending direction in at least a portion of the plurality of insulating layers in the bending region; and A display device comprising a micro-coating layer disposed on the upper and lower portions of the plurality of insulating layers in the bending region and disposed to fill the plurality of first holes.
18. In Article 1, The above plurality of first holes are, A display device having a planar shape that is square or rectangular, spaced apart in a direction intersecting the bending direction, arranged parallel to each other, and arranged offset from each other.
19. In Article 18, The above plurality of insulating layers A display device further comprising a plurality of second holes arranged along the bending direction in the first non-display area and the second non-display area adjacent to the bending area.
20. In Article 19, The above plurality of insulating layers are, First insulating layer; A second insulating layer on the first insulating layer; and It includes a bank layer on the second insulating layer, and The plurality of first holes are disposed in the first insulating layer, the second insulating layer, and the bank layer, and The plurality of second holes are a display device disposed in the first insulating layer, the second insulating layer, and the bank layer.

Description

Display Device This specification relates to a display device, and more specifically, to a display device capable of preventing crack propagation during bending. Generally, display devices are widely used as display screens for various electronic devices such as mobile communication terminals, electronic notebooks, e-books, PMPs (Portable Multimedia Players), navigation systems, UMPCs (Ultra Mobile PCs), mobile phones, smartphones, tablet PCs (Personal Computers), watch phones, electronic pads, wearable devices, watch phones, portable information devices, navigation systems, vehicle control display devices, televisions, laptops, and monitors. Recently, research and development have been conducted on display devices capable of achieving the maximum screen size by reducing the bezel area where images are not displayed within the same display panel size. FIG. 1 is a plan view of a display device according to one embodiment of the present specification. FIG. 2 is a cross-sectional view of a subpixel of a display device according to one embodiment of the present specification. Figure 3 is an enlarged plan view of areas A and B of Figure 1. Figure 4 is a cross-sectional view of C-C' in Figure 3. Figure 5 is a cross-sectional view of D-D' in Figure 3. FIG. 6 is a cross-sectional view of a non-display area of a display device according to another embodiment of the present specification. FIG. 7 is an enlarged plan view of a display device according to another embodiment of the present specification. FIG. 8 is an enlarged plan view of a display device according to another embodiment of the present specification. FIG. 9 is an enlarged plan view of a display device according to another embodiment of the present specification. Figure 10 is a cross-sectional view along E-E' of Figure 9. FIG. 11 is a cross-sectional view of a display device according to another embodiment of the present specification. The advantages and features of this specification and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, this specification is not limited to the embodiments disclosed below and may be implemented in various different forms; these embodiments are provided merely to ensure that the disclosure of this specification is complete and to fully inform those skilled in the art of the scope of the invention. Shapes, areas, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of this specification are exemplary, and this specification is not limited to the depicted details. Throughout the specification, the same reference numerals refer to the same components. Furthermore, in describing this specification, if it is determined that a detailed description of related prior art could unnecessarily obscure the essence of this specification, such detailed description is omitted. Where terms such as "includes," "has," or "is made up" are used in this specification, other parts may be added unless "only" is used. Where a component is expressed in the singular, it includes cases where it is included in the plural unless specifically stated otherwise. In interpreting the components, they are interpreted to include a margin of error even in the absence of a separate explicit statement. In the case of describing a positional relationship, for example, when the positional relationship between two parts is described using expressions such as 'on,' 'upper,' 'lower,' or 'next to,' one or more other parts may be located between the two parts unless 'immediately' or 'directly' is used. When an element or layer is referred to as "on" another element or layer, it includes cases where another layer or element is placed directly on top of or in between. Additionally, terms such as "first," "second," etc. are used to describe various components, but these components are not limited by these terms. These terms are used merely to distinguish one component from another. Accordingly, the first component mentioned below may be the second component within the technical scope of this specification. Throughout the specification, the same reference numerals refer to the same components. The area and thickness of each component shown in the drawings are illustrated for convenience of explanation and are not necessarily limited to the area and thickness of the components illustrated in this specification. The features of each of the various embodiments of this specification may be combined or combined with one another, either partially or wholly, and may technically enable various interlocking and operation. Each embodiment may be implemented independently of one another or may be implemented together in an associated relationship. The present specification will be described below with reference to the drawings. FIG. 1 is a plan view of a display device according to one embodiment of the present specification. For convenience of e