Liquid crystal display

• US 5,835,179 A
• Filed: 08/29/1997
• Issued: 11/10/1998
• Est. Priority Date: 08/30/1996
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Yamanaka, Hideo
• Primary Examiner(s): Sikes, William L.
• Assistant Examiner(s): Dudek, James A.
• Application Number:
  US08/919,818
• Time in Patent Office: 438 Days
• Field of Search: 349/161, 349/58, 349/59, 349/60
• US Class Current: 349/161
• CPC Class Codes: G02F 1/133385 with cooling means, e.g. fans
• CPC Class Codes: G02F 1/1335 Structural association of cells with optical devices, e.g. polarisers or reflectors

Abstract

A liquid crystal display for a projector, including a pair of substrates, a liquid crystal sealed in a space defined between the pair of substrates, and a translucent radiating plate mounted on at least one of the pair of substrates through a translucent adhesive. With this configuration, heat generated in the liquid crystal display can be efficiently dissipated to the outside with a simple structure. Further, degradation of a displayed image quality due to variations in cell gap can be prevented.

Claims

1. A liquid crystal display for a projector, comprising:

a pair of substrates;

a liquid crystal sealed in a space defined between said pair of substrates; and

a translucent radiating plate mounted on at least one of said pair of substrates through a translucent adhesive.

2. The liquid crystal display according to claim 1, wherein said translucent adhesive is formed of a silicone resin.

3. The liquid crystal display according to claim 2, wherein said silicone resin is selected from the group consisting of a ultraviolet curing rubberlike silicone resin, a ultraviolet curing gellike silicone resin, a heat curing rubberlike silicone resin, and a heat curing gellike silicone resin.

4. The liquid crystal display according to claim 1, wherein said translucent radiating plate is formed of glass selected from the group consisting of borosilicate glass, crystallized glass, silica glass, and aluminosilicate glass.

5. The liquid crystal display according to claim 1 further comprising a metal frame connected to said translucent radiating plate.

6. The liquid crystal display according to claim 5, wherein said metal frame is connected through a resin having high thermal conductivity to said translucent radiating plate.

7. The liquid crystal display according to claim 5, wherein said metal frame is connected through a double-sided adhesive tape having high thermal conductivity to said translucent radiating plate.

8. The liquid crystal display according to claim 5, wherein at least an outer surface of said metal frame is formed with corrugations.

9. The liquid crystal display according to claim 5, wherein said metal frame has an opening as an optical path, and an edge of said opening is tapered.

10. The liquid crystal display according to claim 1 further comprising a polarizing plate mounted on said translucent radiating plate.

11. The liquid crystal display according to claim 10, wherein said polarizing plate has a hard coating and an antireflection film.

12. The liquid crystal display according to claim 1, wherein one of said pair of substrates has a pixel region in which pixels are arranged and a drive circuit region.

13. The liquid crystal display according to claim 12, further comprising a light blocking film formed on said translucent radiating plate at a portion thereof corresponding to said drive circuit region.

14. The liquid crystal display comprising:

a drive substrate having a display region in which a matrix of pixels is arranged and a drive circuit region;

an opposing substrate opposed to said drive substrate;

a liquid crystal layer held between said drive substrate and said opposing substrate;

a first translucent radiating plate mounted on a surface of said drive substrate opposite to said liquid crystal layer through a translucent adhesive;

a black metal sheet having high thermal conductivity formed on a surface of said opposing substrate opposite to said liquid crystal layer at a portion thereof corresponding to said drive circuit region;

a second translucent radiating plate mounted on said opposing substrate through said black metal sheet; and

an air gap formed so as to be surrounded by said opposing substrate, said black metal sheet, and said second translucent radiating plate.

15. The liquid crystal display according to claim 14 further comprising antireflection films formed on front and rear surfaces of said second translucent radiating plate.

16. The liquid crystal display according to claim 14 further comprising a metal frame mounted so as to surround said opposing substrate, said black metal sheet being connected to said metal frame.

17. The liquid crystal display according to claim 14 further comprising a polarizing plate provided apart from said opposing substrate.

18. The liquid crystal display according to claim 17 further comprising a supporting member for supporting said polarizing plate, said supporting member serving also as a light blocking member for blocking light entering said drive circuit region of said drive substrate.