Light guide display with antireflection film

• US 20060209565A1
• Filed: 03/17/2005
• Published: 09/21/2006
• Est. Priority Date: 03/17/2005
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Kuo, Hue Pei, Naberhuis, Steven L.
• Granted Patent: US 7,431,488 B2
• Time in Patent Office: Days
• US Class Current: 362/616
• CPC Class Codes: G02F 1/133524 Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides

Abstract

Provided is a light guide display with an antireflection film. A plurality of aligned magnifying layers provide a viewing surface. Each magnifying layer includes a plurality of aligned light guides, each light guide having an input end, a midsection and an output end. The plurality of output ends are aligned. The plurality of input ends are aligned as an input surface. A antireflection film is disposed upon the input surface. A related method of making a light guide screen with an antireflection film is also provided.

Claims

1. A light guide display with antireflection film, comprising:

a plurality of aligned magnifying layers providing a viewing surface, each magnifying layer including;

a plurality of aligned light guides, each light guide having an input end, a midsection and an output end;

the plurality of output ends aligned;

the plurality of input ends aligned as an input surface, and

an antireflection film disposed upon the input surface.

2. The light guide display of claim 1, wherein the antireflection film comprises a coating.

3. The light guide display of claim 1, wherein the antireflection film comprises a layer.

4. The light guide display of claim 1, wherein the antireflection film comprises an adhesive laminate.

5. The light guide display of claim 1, wherein the antireflection film comprises a plurality of thin-film layers.

6. The light guide display of claim 1, wherein the antireflection film is intimately joined to the input surface.

7. The light guide display of claim 1, wherein the antireflection film comprises an integral part of the input surface.

8. The light guide display of claim 1, wherein the antireflection film enhances optically coupling the input surface to an image source.

9. The light guide display of claim 1, wherein the output ends within each magnifying layer are in substantially contiguous parallel contact.

10. The light guide display of claim 1, wherein the midsection is flexible.

11. A light guide display with antireflection film, comprising:

a plurality of aligned magnifying layers providing a viewing surface, each magnifying layer including;

a plurality of light guides, each light guide having an input end, a midsection and a magnifying output end;

the plurality of input ends aligned;

the plurality of output ends aligned in substantially contiguous parallel contact;

the plurality of aligned input ends aligned as an input surface, and

an antireflection film disposed upon the input surface.

12. The light guide display of claim 11, wherein the antireflection film comprises a coating.

13. The light guide display of claim 11, wherein the antireflection film comprises a layer.

14. The light guide display of claim 11, wherein the antireflection film comprises an adhesive laminate.

15. A method of making a light guide display with antireflection film, comprising:

providing a plurality of light guides, each light guide having an input end, a midsection and a magnifying output end;

aligning the plurality of output ends;

aligning the plurality of input ends as an input surface, and

providing an antireflection film upon the input surface.

16. The method of claim 15, wherein the plurality of light guides are arranged into a plurality of light guide layers, each layer one light guide thick, the magnifying output ends of each layer aligned in substantially contiguous parallel contact.

17. The method of claim 15, wherein the antireflection film is provided upon the input surface by physical vapor deposition.

18. The method of claim 15, wherein the antireflection film is provided upon the input surface by chemical vapor deposition.

19. The method of claim 15, wherein the antireflection film comprises an adhesive laminate.

20. The method of claim 15, wherein the antireflection film is provided by depositing multiple thin-film layers upon the input surface.

21. The method of claim 15, wherein the antireflection film is provided as a single layer of material having an index of refraction between an index of refraction of the light guides and an index of refraction of air.

22. A light guide display with antireflection film, comprising:

a case;

a plurality of aligned magnifying layers disposed within the case and providing a viewing surface, each magnifying layer including;

a plurality of aligned light guides, each light guide having an input end, a midsection and a magnifying output end;

the plurality of magnifying output ends aligned in substantially contiguous parallel contact;

the plurality of input ends aligned as an input surface;

an antireflection film disposed upon the input surface, and

at least one image source disposed within the case proximate to the input surface, the antireflection film enhancing the optical coupling of the input surface to the image source.

23. The light guide display of claim 22, wherein the antireflection film comprises a coating.

24. The light guide display of claim 22, wherein the antireflection film comprises a layer.

25. The light guide display of claim 22, wherein the antireflection film comprises a plurality of thin-film layers.

26. The light guide display of claim 22, wherein the antireflection film comprises an integral part of the input surface.