Methods, systems, and products for image displays
Methods, systems, and products illuminate display devices. An image is injected into a waveguide. The image propagates at total internal reflectance within the waveguide. A frustrator withdraws a frustrated image from the waveguide, and the frustrated image may be displayed to a viewer.
1. A display device, comprising:
a waveguide;
electronic circuitry for injecting an image into the waveguide; and
a frustrator applied to the waveguide, the frustrator withdrawing the image through the frustrator.
2. The display device of claim 1 , wherein the image is injected into the waveguide to create total internal reflectance.
3. The display device of claim 1 , wherein the electronic circuitry comprises a hardware processor.
4. The display device of claim 1 , further comprising a magnifier that magnifies the image.
5. The display device of claim 1 , further comprising a battery providing electrical power to the electronic circuitry.
6. The display device of claim 1 , wherein the frustrator is a coating applied to a surface of the waveguide.
7. The display device of claim 1 , wherein the frustrator is a film applied to a surface of the waveguide.
8. A method, comprising:
injecting, by a projector, an image into a waveguide;
reflecting, within the waveguide, the image at total internal reflectance;
applying a frustrator to the waveguide; and
withdrawing a frustrated image through the frustrator;
wherein the frustrated image is visible to a viewer.
9. The method of claim 8 , further comprising providing a battery for electrical power to the projector.
10. The method of claim 8 , further comprising withdrawing the frustrated image using a coating applied to the waveguide.
11. The method of claim 8 , further comprising withdrawing the frustrated image using a film applied to the waveguide.
12. The method of claim 8 , further comprising magnifying the frustrated image.
13. The method of claim 8 , further comprising reflecting the image back into the waveguide.
14. The method of claim 8 , further comprising diffusing the frustrated image.
15. A display device, comprising:
a waveguide;
a projector for injecting an image into the waveguide at total internal reflectance;
a frustrator applied to the waveguide, the frustrator for withdrawing a frustrated image through the frustrator; and
a magnifier for magnifying the frustrated image.
16. The display device of claim 15 , further comprising a battery providing electrical power to the projector.
17. The display device of claim 15 , wherein the frustrator is a coating applied to the waveguide.
18. The display device of claim 15 , wherein the frustrator comprises a film applied to a surface of the waveguide.
19. The display device of claim 15 , further comprising a reflector to reflect the frustrated image.
20. The display device of claim 15 , further comprising a diffuser for diffusing the frustrated image.