Liquid crystal display and display

• US 20070165170A1
• Filed: 12/26/2006
• Published: 07/19/2007
• Est. Priority Date: 12/26/2005
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Hitachi Displays Limited (Japan Display Incorporated)
• Inventors: Fukuda, Koichi
• Granted Patent: US 7,532,274 B2
• Time in Patent Office: Days
• US Class Current: 349/138
• CPC Class Codes: G02F 1/1333 Constructional arrangements; Manufacturing methodsG02F1/135, G02F1/136 take precedence
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/1339 Gaskets; Spacers; Sealing of cells
• CPC Class Codes: G02F 2201/50 Protective arrangements

Abstract

A liquid crystal display comprises a liquid crystal display panel, the liquid crystal display panel comprising a first substrate; a second substrate disposed on an observer side with respect to the first substrate and opposed to the first substrate; a liquid crystal held between the first substrate and the second substrate; an upper polarizing plate disposed on the observer side with respect to the second substrate; and a resin film disposed on the observer side with respect to the upper polarizing plate and affixed in contact with the upper polarizing plate, the resin film being higher in surface hardness than the upper polarizing plate. Both reduction in thickness of the liquid crystal display panel and ensuring of a sufficient strength are attained.

Claims

1. A liquid crystal display comprising a liquid crystal display panel, the liquid crystal display panel comprising:

a first substrate;

a second substrate disposed on an observer side with respect to the first substrate and opposed to the first substrate;

a liquid crystal held between the first substrate and the second substrate;

an upper polarizing plate disposed on the observer side with respect to the second substrate; and

a resin film disposed on the observer side with respect to the upper polarizing plate and affixed in contact with the upper polarizing plate, the resin film being higher in surface hardness than the upper polarizing plate.

2. The liquid crystal display according to claim 1, wherein the resin film has a surface hardness of 3 H or harder in terms of surface pencil hardness.

3. The liquid crystal display according to claim 1, wherein the resin film has a thickness of 0.2 mm or more.

4. The liquid crystal display according to claim 1, wherein the resin film has a thickness of 0.2 mm or more and 1 mm or less.

5. The liquid crystal display according to claim 1, wherein a material of the resin film is an acrylic resin or an epoxy resin.

6. The liquid crystal display according to claim 1, wherein the first substrate has a thickness of 0.5 mm or less.

7. The liquid crystal display according to claim 1, wherein the second substrate has a thickness of 0.5 mm or less.

8. The liquid crystal display according to claim 1, wherein the thickness of the first substrate and the thickness of the second substrate are almost equal to each other.

9. The liquid crystal display according to claim 1, wherein the thickness of the second substrate is smaller than the thickness of the first substrate.

10. The liquid crystal display according to claim 1, wherein the thickness of the second substrate is larger than the thickness of the first substrate.

11. The liquid crystal display according to claim 1, wherein the total thickness of the liquid crystal display panel is 2 mm or less.

12. The liquid crystal display according to claim 1, further comprising an upper phase difference plate disposed between the upper polarizing plate and the second substrate.

13. The liquid crystal display according to claim 1, wherein when the liquid crystal display panel is viewed from a front side of the liquid crystal display panel, an outline of the resin film is smaller than an outline of the upper polarizing plate.

14. The liquid crystal display according to claim 1, wherein

the liquid crystal display panel further comprises a lower polarizing plate disposed on a back surface side of the first substrate;

and

when the liquid crystal display panel is viewed from the front side of the liquid crystal display panel, an outline of the resin film and an outline of the upper polarizing plate are smaller than an outline of the lower polarizing plate.

15. The liquid crystal display according to claim 14, further comprising a lower phase difference plate disposed between the lower polarizing plate and the first substrate.

16. The liquid crystal display according to claim 1, wherein the first substrate and the second substrate are glass substrates.

17. A liquid crystal display comprising a liquid crystal display panel, the liquid crystal display panel comprising:

a first substrate;

a second substrate disposed on an observer side with respect to the first substrate and opposed to the first substrate;

a liquid crystal held between the first substrate and the second substrate;

an upper polarizing plate disposed on the observer side with respect to the second substrate; and

a resin film disposed between the upper polarizing plate and the second substrate, wherein

the resin film has a thickness of 0.2 mm or more; and

the upper polarizing plate has a surface hardness of 3 H or harder in terms of surface pencil hardness.

18. The liquid crystal display according to claim 17, wherein the resin film has a thickness of 1 mm or less.

19. The liquid crystal display according to claim 17, wherein the thickness of the first substrate and the thickness of the second substrate are almost equal to each other.

20. The liquid crystal display according to claim 17, wherein the thickness of the second substrate is smaller than the thickness of the first substrate.

21. The liquid crystal display according to claim 17, wherein the thickness of the second substrate is larger than the thickness of the first substrate.

22. The liquid crystal display according to claim 17, further comprising an upper phase difference plate disposed between the upper polarizing plate and the second substrate.

23. The liquid crystal display according to claim 17, wherein when the liquid crystal display panel is viewed from a front side of the liquid crystal display, an outline of the upper polarizing plate is smaller than an outline of the resin film.

24. The liquid crystal display according to claim 17, wherein

the liquid crystal display panel further comprises a lower polarizing plate disposed on a back surface side of the first substrate;

and

when the liquid crystal display panel is viewed from the front side of the liquid crystal display panel, an outline of the upper polarizing plate is smaller than an outline of the lower polarizing plate.

25. The liquid crystal display according to claim 24, wherein when the liquid crystal display panel is viewed from the front side of the liquid crystal display panel, an outline of the resin film is smaller than the outline of the lower polarizing plate.

26. The liquid crystal display according to claim 24, wherein when the liquid crystal display panel is viewed from the front side of the liquid crystal display panel, an outline of the resin film is larger than the outline of the lower polarizing plate.

27. The liquid crystal display according to claim 24, further comprising a lower phase difference plate disposed between the lower polarizing plate and the first substrate.

28. The liquid crystal display according to claim 17, wherein the first substrate and the second substrate are glass substrates.

29. A liquid crystal display comprising a liquid crystal display panel, the liquid crystal display panel comprising:

a first substrate;

a second substrate disposed on an observer side with respect to the first substrate and opposed to the first substrate;

a liquid crystal held between the first substrate and the second substrate;

an upper polarizing plate disposed on the observer side with respect to the second substrate;

a lower polarizing plate disposed on a back surface side of the first substrate; and

a resin film affixed in contact with a back surface side of the lower polarizing plate,

wherein the total thickness of the first substrate and the second substrate is 0.5 mm or less.

30. The liquid crystal display according to claim 29, wherein the resin film has a thickness of 0.1 mm or more and 0.3 mm or less.

31. The liquid crystal display according to claim 29, wherein the thickness of the first substrate and the thickness of the second substrate are almost equal to each other.

32. The liquid crystal display according to claim 29, wherein the thickness of the second substrate is smaller than the thickness of the first substrate.

33. The liquid crystal display according to claim 29, wherein the thickness of the second substrate is larger than the thickness of the first substrate.

34. The liquid crystal display according to claim 29, wherein the first substrate and the second substrate are glass substrates.

35. A liquid crystal display comprising a liquid crystal display panel, the liquid crystal display panel comprising:

a first substrate;

a second substrate disposed on an observe side with respect to the first substrate and opposed to the first substrate;

a liquid crystal held between the first substrate and the second substrate;

an upper polarizing plate disposed on the observer side with respect to the second substrate;

a lower polarizing plate disposed on a back surface side of the first substrate; and

a resin film disposed between the lower polarizing plate and the first substrate,

wherein the total thickness of the first substrate and the second substrate is 0.5 mm or less.

36. The liquid crystal display according to claim 35, wherein the resin film has a thickness of 0.1 mm or more and 0.3 mm or less.

37. The liquid crystal display according to claim 35, wherein the thickness of the first substrate and the thickness of the second substrate are almost equal to each other.

38. The liquid crystal display according to claim 35, wherein the thickness of the second substrate is smaller than the thickness of the first substrate.

39. The liquid crystal display according to claim 35, wherein the thickness of the second substrate is larger than the thickness of the first substrate.

40. The liquid crystal display according to claim 35, wherein the first substrate and the second substrate are glass substrates.

41. A display comprising a display panel, the display panel comprising:

a first substrate;

a second substrate disposed on an observer side with respect to the first substrate and opposed to the first substrate; and

an upper polarizing plate disposed on the observer side with respect to the second substrate, wherein

the first substrate and the second substrate are glass substrates; and

a resin film is disposed on the observer side with respect to the upper polarizing plate and affixed in contact with the upper polarizing plate and has a surface hardness of 3 H or harder in terms of surface pencil hardness.