Isolated Cooling System Having an Insulator Gap and Front Polarizer

• US 20090135365A1
• Filed: 09/24/2008
• Published: 05/28/2009
• Est. Priority Date: 11/16/2007
• Status: Active Grant

• Current Assignee: Manufacturing Resources International, Inc.
• Original Assignee: Manufacturing Resources International, Inc.
• Inventors: DUNN, William
• Granted Patent: US 8,879,042 B2
• Time in Patent Office: Days
• US Class Current: 349/161
• CPC Class Codes: G02F 1/133385 with cooling means, e.g. fans
• CPC Class Codes: H05K 7/20972 Forced ventilation, e.g. on heat dissipaters coupled to components

Abstract

An exemplary embodiment relates to a cooling system and a method for cooling an electronic display. A preferred embodiment includes a transparent gas cooling chamber. The transparent gas cooling chamber may have a linear polarizer. The components in the system are preferably housed within the electronic display housing. The cooling chamber defines a gas compartment that is anterior to and coextensive with the electronic display surface. Fans may be used to propel the isolated gas through the cooling chamber. The circulating gas removes heat directly from the electronic display surface by convection. The isolated gas is transparent or at least semi-transparent. The image quality of an exemplary embodiment remains essentially unchanged, even though the gas is flowing through a narrow channel over the visible face of the electronic display surface.

Claims

1. A cooling system for an electronic display, the system comprising:

a front glass unit, including;

a first front glass having a first and second surface;

a second front glass having a third and fourth surface, bonded to the first front glass;

a linear polarizer disposed on at least one of the surfaces;

a LCD stack, wherein the front glass unit and the LCD stack define a first gas chamber positioned anterior and at least coextensive with the viewable area of the LCD stack; and

a second gas chamber positioned posterior to the viewable area of said LCD stack and operatively connected to the first gas chamber so that gas may circulate through the first and second gas chamber.

2. The cooling system of claim 1, wherein the linear polarizer is interposed between the first and second front glasses.

3. The cooling system of claim 1, wherein the first and second front glasses are bonded together with an index matched optical adhesive.

4. The cooling system of claim 1, further comprising an anti-reflective coating on the first and second front glasses.

5. The cooling system of claim 1, further comprising a fan to propel gas through the first and second gas chambers.

6. The cooling system of claim 1, further comprising a means for cooling gas contained within the second gas chamber.

7. The cooling system of claim 1, further comprising spacers interposed between the front glass unit and the LCD stack defining the depth of the first gas chamber.

8. A cooling system for an electronic display, the system comprising:

a front glass unit, including;

a first front glass having a first and second surface;

a second front glass having a third and fourth surface, bonded to the first front glass;

a linear polarizer disposed on at least one of the surfaces; and

a LCD stack, the front glass unit and the LCD stack define a insulator gap positioned anterior and at least coextensive with the viewable area of the LCD stack.

9. The cooling system of claim 8, wherein the insulator gap is a first gas chamber.

10. The cooling system of claim 9, further comprising a second gas chamber positioned posterior to the viewable area of LCD stack and operatively connected to the first gas chamber so that gas may circulate through the first and second gas chamber.

11. The cooling system of claim 8, wherein the linear polarizer is interposed between the first and second front glasses.

12. The cooling system of claim 8, wherein the first and second front glasses are bonded together with an index matched optical adhesive.

13. The cooling system of claim 8, further comprising an anti-reflective coating on the first and second front glasses.

14. The cooling system of claim 10, further comprising a fan to propel gas through the first and second gas chambers.

15. The cooling system of claim 10, further comprising a means for cooling gas contained within the second gas chamber.

16. A cooling system for an electronic display, the system comprising:

an LCD stack;

a front glass unit positioned anterior to the LCD stack; and

at least one spacer in communication with both the LCD stack and the front glass unit;

wherein the LCD stack and the front glass unit define an insulator gap.

17. The cooling system of claim 16, wherein the front glass unit comprises:

a first front glass having a first and second surface;

a second front glass having a third and fourth surface, bonded to the first front glass; and

a linear polarizer disposed on at least one of the surfaces.

18. The cooling system of claim 16, wherein the insulator gap is a first gas chamber.

19. The cooling system of claim 18, further comprising a second gas chamber positioned posterior to the viewable area of LCD stack and operatively connected to the first gas chamber so that gas may circulate through the first and second gas chamber.

20. The cooling system of claim 19, further comprising a fan to propel gas through the first and second gas chambers.

21. A cooling system for an electronic display, the system comprising:

a front glass positioned anterior to an electronic display surface, so as to define an insulator gap.

22. The cooling system of claim 21, wherein the effective gap is a first gas chamber.

23. The cooling system of claim 21, wherein the front glass has a linear polarizer layer.

24. The cooling system of claim 21, further comprising a second gas chamber positioned posterior to the viewable area of LCD stack and operatively connected to the first gas chamber so that gas may circulate through the first and second gas chamber.

25. A cooling system for an electronic display, the system comprising:

a LCD stack having a polarizer layer; and

a front glass anterior to the LCD stack;

wherein the front glass is substantially parallel to the LCD stack and set forward so as to create a insulator gap between the LCD stack and the front glass.

26. The cooling system of claim 25, wherein the insulator gap is a first gas chamber.

27. The cooling system of claim 25, further comprising a second gas chamber positioned posterior to the viewable area of LCD stack and operatively connected to the first gas chamber so that gas may circulate through the first and second gas chamber.

28. The cooling system of claim 27, further comprising a fan to propel gas through the first and second gas chambers.