具有板格的支撑板、包括支撑板的显示装置以及包括该显示装置的电子装置

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By designing cross openings of a specific ratio on the support plate of the folding area, the support force is enhanced, solving the problem of easy damage to the folding area of flexible display devices and improving impact resistance.

CN224519448UActive Publication Date: 2026-07-17SAMSUNG DISPLAY CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: SAMSUNG DISPLAY CO LTD
Filing Date: 2025-07-07
Publication Date: 2026-07-17

AI Technical Summary

Technical Problem

The folding area of flexible display devices is easily damaged by external impacts, so it is necessary to improve the impact resistance of the folding area.

Method used

The support plate of the folding area is designed with cross-directional openings, including first and second openings. The first opening is defined on the lower surface, and the second opening overlaps on the upper surface and is arranged inside the first opening. The width and depth of the openings are designed in a specific ratio to enhance support and flexibility.

Benefits of technology

By enhancing support and reducing deformation in the folding area, the impact resistance of the display device is improved.

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Abstract

本实用新型提供具有板格的支撑板、包括支撑板的显示装置以及包括该显示装置的电子装置。根据本实用新型的一实施例的显示装置可以包括：显示模块，包括沿第一方向排列的非折叠区域及折叠区域；以及支撑板，包括与所述折叠区域重叠的折叠部，其中，在所述折叠部可以定义有沿与所述第一方向交叉的第二方向延伸的开口部，所述开口部可以包括：第一开口部，定义于所述折叠部的下表面；以及第二开口部，定义于所述第一开口部上，其中，在所述第二方向上，所述第一开口部的第一长度和所述第二开口部的第二长度可以彼此不同。

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Claims

1. A display device, characterized by comprising: include: The display module includes a non-foldable area and a foldable area arranged along a first direction; as well as The support plate includes a fold that overlaps with the folded area. The folded portion includes an opening extending in a second direction that intersects the first direction. The opening includes: A first opening is defined on the lower surface of the fold; and The second opening is defined on the first opening. In the second direction, the first length of the first opening and the second length of the second opening are different from each other.

2. The display device according to claim 1, characterized in that, The second length is less than the first length.

3. The display device according to claim 1, characterized in that, The second opening is defined on the upper surface of the folded portion. When viewed from a plane, the second opening overlaps the first opening and is arranged within the first opening, and the first opening and the second opening are defined continuously.

4. The display device according to claim 1, characterized in that, The first width of the first opening relative to the first direction gradually decreases towards the upper part in a direction perpendicular to the plane defined by the first direction and the second direction, and the second width of the second opening relative to the first direction gradually decreases towards the upper part.

5. The display device according to claim 4, characterized in that, The first width is greater than the second width.

6. The display device according to claim 4, characterized in that, The rate of reduction of the first width is variable, while the rate of reduction of the second width is constant.

7. The display device according to claim 1, characterized in that, In a direction perpendicular to the plane defined by the first direction and the second direction, the first depth of the first opening is greater than the second depth of the second opening.

8. The display device according to claim 7, characterized in that, The ratio of the first depth to the second depth is 6:

4.

9. The display device according to claim 7, characterized in that, The maximum value of the first width of the first opening relative to the first direction is greater than the first depth, and the maximum value of the second width of the second opening relative to the first direction is less than the second depth.

10. The display device according to claim 1, characterized in that, The fold includes: A first inner surface defines the first opening and has a curved shape; and The second inner surface defines the second opening and has a straight inclined surface.

11. The display device according to claim 10, characterized in that, The surface roughness of the first inner surface is different from that of the second inner surface.

12. The display device according to claim 10, characterized in that, The fold further includes a protrusion adjacent to the boundary between the first inner surface and the second inner surface, and protruding downward from the first inner surface in a direction perpendicular to the plane defined by the first direction and the second direction.

13. The display device according to claim 10, characterized in that, When viewed in the second direction, the first opening has a shape that protrudes upward in a direction perpendicular to the plane defined by the first and second directions, and the second opening has a trapezoidal shape.

14. The display device according to claim 1, characterized in that, The first opening has a shape formed by processing the portion of the folded portion with an etching solution, and the second opening has a shape formed by processing the portion of the folded portion with a laser beam.

15. The display device according to claim 1, characterized in that, The display module includes an adhesive layer attached to the support plate, the adhesive layer being arranged to overlap with the folded portion.

16. The display device according to claim 1, characterized in that, The width of the first opening relative to the first direction gradually decreases towards the upper part in a direction perpendicular to the plane defined by the first direction and the second direction, while the width of the second opening relative to the first direction gradually increases towards the upper part.

17. The display device of claim 1, wherein The opening also includes: The third opening is defined on the upper surface of the folded portion. The second opening is defined between the first opening and the third opening. The width of the third opening relative to the first direction gradually decreases towards the lower part in a direction perpendicular to the plane defined by the first direction and the second direction.

18. The display device according to claim 1, characterized in that, In a direction perpendicular to the plane defined by the first direction and the second direction, the first depth of the first opening is less than the second depth of the second opening.

19. The display device according to claim 18, characterized in that, The ratio of the first depth to the second depth is 4:

6.

20. The display device according to claim 1, characterized in that, In a direction perpendicular to the plane defined by the first direction and the second direction, the thickness of the portion of the folded portion having the first opening is defined as a first thickness, and the thickness of the portion of the folded portion having the second opening is defined as a second thickness. The ratio of the second thickness to the first thickness is 7:3 to 3:

7.

21. The display device according to claim 1, characterized in that, The opening is formed in the second direction on opposite sides of the fold.

22. The display device according to claim 1, characterized in that, A dummy opening is further defined on the lower surface of the folded portion, the dummy opening extending from the first opening along the second direction, and having a width in the first direction smaller than the width of the first opening. The dummy opening does not overlap with the second opening.

23. The display device according to claim 1, characterized in that, The maximum width of the first opening relative to the first direction is less than the depth of the first opening relative to the direction perpendicular to the plane defined by the first direction and the second direction.

24. A display device comprising: include: The display module includes a non-foldable area and a foldable area arranged along a first direction; as well as The support plate includes a fold that overlaps with the folded area. The folded portion includes an opening extending in a second direction that intersects the first direction. The opening includes: A first opening is defined on the lower surface of the folded portion; and The second opening is defined on the upper surface of the folded portion. In the second direction, the first length of the first opening and the second length of the second opening are different from each other. In a direction perpendicular to the plane defined by the first direction and the second direction, the first depth of the first opening and the second depth of the second opening are different from each other.

25. The display device according to claim 24, characterized in that, The second length is less than the first length, and the first depth is greater than the second depth.

26. The display device according to claim 24, characterized in that, The first depth is less than the second depth.

27. A display device comprising: include: The display module includes a non-foldable area and a foldable area arranged along a first direction; as well as The support plate includes a fold that overlaps with the folded area. The folded portion includes an opening extending in a second direction that intersects the first direction. The opening includes: A first opening is defined on the lower surface of the folded portion; and The second opening is defined on the upper surface of the folded portion. Wherein, the first width of the first opening corresponding to the first direction is greater than the second width of the second opening, and each of the first width and the second width gradually decreases in the direction perpendicular to the plane defined by the first direction and the second direction. The rate of decrease of the first width is variable, and the rate of decrease of the second width is constant.

28. An electronic device, comprising: include: Display device, including display module; and An electronic module is used to control the operation of the display module. The display device is a display device according to any one of claims 1 to 27.

29. A support plate characterized by, include: Folding section; as well as The non-folded portion is adjacent to the folded portion. The folded portion includes an opening extending in a second direction that intersects the first direction. The opening includes: A first opening is defined on the lower surface of the folded portion; and The second opening is defined on the first opening. In the second direction, the first length of the first opening and the second length of the second opening are different from each other.

30. The support plate according to claim 29, characterized in that, In a direction perpendicular to the plane defined by the first direction and the second direction, the first depth of the first opening is less than the second depth of the second opening.

31. The support plate according to claim 30, characterized in that, The ratio of the first depth to the second depth is 4:

6.

32. The support plate according to claim 29, characterized in that, In a direction perpendicular to the plane defined by the first direction and the second direction, the thickness of the portion of the folded portion having the first opening is defined as a first thickness, and the thickness of the portion of the folded portion having the second opening is defined as a second thickness. The ratio of the second thickness to the first thickness is 7:3 to 3:7.