DISPLAY APPARATUS

• US 20180101041A1
• Filed: 10/10/2017
• Published: 04/12/2018
• Est. Priority Date: 10/11/2016
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: KIM, Hyukjin, SONG, Jaejin
• Granted Patent: US 10,488,713 B2
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film
• CPC Class Codes: G02F 1/133514 Colour filters
• CPC Class Codes: G02F 1/13394 spacers regularly patterned on the cell subtrate, e.g. walls, pillars G02F1/133377 takes precedence
• CPC Class Codes: G02F 1/13396 Spacers having different sizes
• CPC Class Codes: G02F 1/13398 Spacer materials; Spacer properties
• CPC Class Codes: G02F 1/136222 Colour filters incorporated in the active matrix substrate
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence

Abstract

A display apparatus including: a lower substrate bent around a first bending axis that extends in a first direction; an upper substrate opposing the lower substrate and having a first surface facing the lower substrate; a pixel electrode disposed on the lower substrate; a color filter disposed on the lower substrate so as to correspond to the pixel electrode; and a first column spacer disposed on the first surface so as to correspond to at least a portion of the color filter and extending in a second direction that intersects the first direction.

Claims

1. A display apparatus comprising:

a lower substrate bent around a first bending axis that extends in a first direction;

an upper substrate opposing the lower substrate and comprising a first surface facing the lower substrate;

a pixel electrode disposed on the lower substrate;

a color filter disposed on the lower substrate so as to correspond to the pixel electrode; and

a first column spacer disposed on the first surface so as to correspond to at least a portion of the color filter and extending in a second direction that intersects the first direction.

2. The display apparatus of claim 1, wherein the first direction and the second direction are perpendicular to each other.

3. The display apparatus of claim 2, wherein the upper substrate is bent around a second bending axis extending in a third direction that intersects the second direction.

4. The display apparatus of claim 3, wherein the third direction is parallel to the first direction.

5. The display apparatus of claim 3, wherein the lower substrate is bent according to a first curvature, and the upper substrate is bent according to a second curvature different from the first curvature.

6. The display apparatus of claim 5, wherein the first curvature of the lower substrate is greater than the second curvature of the upper substrate.

7. The display apparatus of claim 1, wherein the pixel electrode extends in the first direction.

8. The display apparatus of claim 1, wherein the color filter comprises at least one of a red color filter, a blue color filter, a green color filter, and a white color filter.

9. The display apparatus of claim 1, wherein the color filter does not overlap at least a portion of the first column spacer.

10. The display apparatus of claim 1, wherein the first column spacer comprises a first portion that overlaps the color filter, and second portions that do not overlap the color filter.

11. The display apparatus of claim 10, wherein the first portion is located at a center of the first column spacer.

12. The display apparatus of claim 10, wherein the second portions are located at two sides of the first portion.

13. The display apparatus of claim 10, further comprising an organic film disposed between the color filter and the first column spacer.

14. The display apparatus of claim 13, wherein the first portion of the first column spacer contacts the organic film.

15. The display apparatus of claim 3, further comprising a second column spacer located farther from a central axis of the upper substrate than the first column spacer, the central axis of the upper substrate being parallel to the second bending axis,

wherein a second length of the second column spacer in the second direction is greater than a first length of the first column spacer in the second direction.

16. The display apparatus of claim 3, further comprising a second column spacer located farther from a central axis of the upper substrate than the first column spacer, the central axis of the upper substrate being parallel to the second bending axis,

wherein a second height of the second column spacer is greater than a first height of the first column spacer.

17. A display apparatus comprising:

a lower substrate bent around a first bending axis that extends in a first direction;

an upper substrate opposing the lower substrate and comprising a first surface facing the lower substrate;

a column spacer disposed on the first surface of the upper substrate and comprising a first portion and a second portion that contacts the first portion; and

a color filter disposed on the lower substrate so that the first portion overlaps the column spacer.

18. The display apparatus of claim 17, wherein the column spacer extends in a second direction that intersects the first direction.

19. The display apparatus of claim 17, wherein a thickness of the first portion is greater than a thickness of the second portion.

20. The display apparatus of claim 17, further comprising an organic film located between the color filter and the column spacer,

wherein the first portion contacts the organic film.