Liquid crystal display panel

• US 20070052910A1
• Filed: 09/08/2005
• Published: 03/08/2007
• Est. Priority Date: 09/08/2005
• Status: Abandoned Application

• Current Assignee: Chunghwa Picture Tubes Limited (Tatung Co., Ltd.)
• Original Assignee: Chunghwa Picture Tubes Limited (Tatung Co., Ltd.)
• Inventors: Li, De-Jiun, Wu, Der-Chun
• Application Number:
  US11/222,706
• Publication Number:
  US 20070052910A1
• Time in Patent Office: Days
• US Class Current: 349/155
• CPC Class Codes: G02F 1/13394 spacers regularly patterned on the cell subtrate, e.g. walls, pillars G02F1/133377 takes precedence

Abstract

A liquid crystal display panel, including a first substrate, a second substrate, a liquid crystal layer and a spacer is provided. The second substrate is disposed over the first substrate, and the liquid crystal layer is disposed between the first substrate and the second substrate. The spacer is also disposed between the first substrate and the second substrate, for sustaining a gap between the first substrate and the second substrate. The spacer is composed of a plurality of support structures seated on the same base, and each support structure has a first portion and a second portion. The first portions of the adjacent support structures are connected with each other, and the second portions of the adjacent support structures are spaced out a distance. The spacer can disperse external pressures so as to improve the yield in assembling process of the liquid crystal display.

Claims

1. A liquid crystal display panel, comprising:

a first substrate;

a second substrate, disposed over the first substrate;

a liquid crystal layer, disposed between the first substrate and the second substrate; and

at least one spacer, disposed between the first substrate and the second substrate, for keeping the gap between the first substrate and the second substrate, the spacer comprising a plurality of support structures, each of the support structures has a first portion and a second portion, the first portions of the adjacent support structures are connected with each other, and the second portions of the adjacent support structures are spaced out a distance.

2. The liquid crystal display panel of claim 1, wherein the minimum height of the second portion of each support structure is ¼

of a total height of each support structure.

3. The liquid crystal display panel of claim 1, wherein the maximum height of the second portion of each support structure is ¾

of a total height of each support structure.

4. The liquid crystal display panel of claim 1, wherein the support structures are pillar.

5. The liquid crystal display panel of claim 4, wherein the support structures comprise at least one of round pillars, oval pillars, cross-shaped pillars, L-shaped pillars, regular polygon pillars and irregular polygon pillars.

6. The liquid crystal display panel of claim 1, wherein the distances are longer than a maximum lateral deformation value of the second portions of the support structures.

7. The liquid crystal display panel of claim 1, wherein the distances between the neighboring support structures are longer than ½

of the width of the second portions of the support structures.

8. The liquid crystal display panel of claim 1, wherein the first substrate is an active element array substrate and the second substrate is a color filter.

9. The liquid crystal display panel of claim 8, wherein the first portions of the support structures are disposed on the color filter.

10. The liquid crystal display panel of claim 9, wherein the color filter comprises a black matrix, and the support structures are disposed corresponding to the black matrix.

11. The liquid crystal display panel of claim 8, wherein the active element array substrate is a thin film transistor array substrate.

12. The liquid crystal display panel of claim 1, further comprising a sealant, disposed between the first substrate and the second substrate, for sealing the liquid crystal layer between the first substrate, the sealant and the second substrate.

13. The liquid crystal display panel of claim 12, wherein the spacer is further disposed between the sealant and the liquid crystal layer.

14. A liquid crystal display panel, comprising:

a first substrate;

a second substrate, disposed over the first substrate;

a liquid crystal layer, disposed between the first substrate and the second substrate; and

at least one spacer, disposed between the first substrate and the second substrate, the spacer has a plurality of protrusions contacting with the first substrate or the second substrate.

15. The liquid crystal display panel of claim 14, wherein the protrusions are pillar.

16. The liquid crystal display panel of claim 15, wherein the protrusions comprise at least one of round pillars, oval pillars, cross-shaped pillars, L-shaped pillars, regular polygon pillars and irregular polygon pillars.

17. The liquid crystal display panel of claim 14, wherein the distances are longer than a maximum lateral deformation value of the protrusions.

18. The liquid crystal display panel of claim 14, wherein the distances between the neighboring support structures are longer than ½

of the width of the protrusions.

19. The liquid crystal display panel of claim 14, wherein the minimum height of the protrusions is ¼

of the height of the spacer.

20. The liquid crystal display panel of claim 14, wherein the maximum height of the protrusions is ¾

of the height of the spacer.

21. The liquid crystal display panel of claim 14, wherein the first substrate is an active element array substrate and the second substrate is a color filter.

22. The liquid crystal display panel of claim 21, wherein the spacer is disposed on the color filter.

23. The liquid crystal display panel of claim 22, wherein the color filter comprises a black matrix, and the spacer are disposed corresponding to the black matrix.

24. The liquid crystal display panel of claim 21, wherein the active element array substrate is a thin film transistor array substrate.

25. The liquid crystal display panel of claim 14, further comprising a sealant, disposed between the first substrate and the second substrate, for sealing the liquid crystal layer between the first substrate, the sealant and the second substrate.

26. The liquid crystal display panel of claim 25, wherein the spacer is further disposed between the sealant and liquid crystal layer.