최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0789415 (2010-05-27) |
등록번호 | US-9121979 (2015-09-01) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 2 인용 특허 : 543 |
Illumination devices and methods of making same are disclosed. In one embodiment, a display device includes a light modulating array and a light guide configured to receive light into at least one edge of the light guide. The light guide can be characterized by a first refractive index. The display
Illumination devices and methods of making same are disclosed. In one embodiment, a display device includes a light modulating array and a light guide configured to receive light into at least one edge of the light guide. The light guide can be characterized by a first refractive index. The display device can also include a light turning layer disposed such that the light guide is at least partially between the turning layer and the array. The turning layer can comprise an inorganic material characterized by a second refractive index that is substantially the same as the first refractive index.
1. A display device comprising: an array of light modulating elements;a light guide disposed over the array, the light guide having at least one edge configured to receive light into the light guide, the light guide including a first inorganic material characterized by a first refractive index; anda
1. A display device comprising: an array of light modulating elements;a light guide disposed over the array, the light guide having at least one edge configured to receive light into the light guide, the light guide including a first inorganic material characterized by a first refractive index; anda turning layer disposed such that the light guide is at least partially between the turning layer and the array, the turning layer including a second inorganic material characterized by a second refractive index that is substantially the same as the first refractive index, wherein the first inorganic material is different than the second inorganic material. 2. The device of claim 1, wherein the light guide comprises an aluminosilicate. 3. The device of claim 1, wherein the light guide comprises sapphire. 4. The device of claim 1, wherein the turning layer comprises silicon oxynitride (SiOxN). 5. The device of claim 4, wherein the light guide comprises sapphire or an aluminosilicate. 6. The device of claim 1, wherein the first refractive index is between about 1.45 and 2.06. 7. The device of claim 1, further comprising a light source configured to provide light into the edge of the light guide. 8. The device of claim 1, further comprising an isolation layer disposed at least partially between the light guide and the array, the isolation layer characterized by a third refractive index that is substantially less than the first refractive index. 9. The device of claim 1, wherein the turning layer further comprises a plurality of light turning features, each light turning feature being configured to receive at least a portion of light which is propagating through the turning layer and reflect at least a portion of the received light toward the array. 10. The device of claim 9, wherein each light turning feature comprises a depression formed in a surface of the turning layer. 11. The device of claim 9, wherein each light turning feature has a generally frustoconical shape. 12. The device of claim 9, wherein each light turning feature has a tapered sidewall. 13. The device of claim 12, wherein each turning feature comprises an interferometric modulator disposed on the tapered sidewall. 14. The device of claim 13, wherein the interferometric modulator comprises a first reflective layer, a second layer, and a third partially reflective layer disposed respectively on the tapered sidewall, wherein the first layer is configured to receive light propagating within the turning layer and reflect at least a portion of the received light toward the array. 15. The device of claim 14, wherein the first, second, and third layers are configured to block a portion of light incident on the turning layer from reflecting from the light guide. 16. The device of claim 1, wherein the light guide further comprises a plurality of light turning features, each light turning feature comprising a tapered sidewall and an optical stack formed thereon. 17. The device of claim 1, further comprising: a processor that is configured to communicate with the array of light modulating elements, said processor being configured to process image data; anda memory device that is configured to communicate with said processor. 18. The device of claim 17, further comprising a driver circuit configured to send at least one signal to the array of light modulating elements. 19. The device of claim 18, further comprising a controller configured to send at least a portion of the image data to said driver circuit. 20. The device of claim 17, further comprising an image source module configured to send the image data to the processor. 21. The device of claim 20, wherein said image source module comprises at least one of a receiver, transceiver, and transmitter. 22. The device of claim 17, further comprising an input device configured to receive input data and to communicate said input data to said processor. 23. A display device comprising: a light modulating device; anda light guide disposed over the light modulating device, the light guide being configured to receive light into at least one edge of the light guide, the light guide including a light-transmissive inorganic substrate layer including a first material characterized by a first refractive index, anda inorganic turning layer disposed over the light-transmissive inorganic substrate layer, the inorganic turning layer including a second material characterized by a second refractive index that is substantially the same as the first refractive index, the inorganic turning layer including a plurality of light turning features configured to receive at least a portion of light propagating within the light guide and reflect at least a portion of the received light toward the light modulating device, wherein the first material is different than the second material. 24. The display device of claim 23, further comprising a plurality of optical masks formed on the light turning features. 25. The display device of claim 24, wherein the optical masks comprise dark coatings. 26. The display device of claim 24, wherein the optical masks comprise interferometric stacks. 27. A display device, comprising: means for modulating light;means for guiding light disposed over the modulating means, the guiding means including a first inorganic material characterized by a first refractive index; andmeans for turning light disposed such that the guiding means is at least partially between the modulating means and the turning means, the turning means including a second inorganic material characterized by a second refractive index that is substantially the same as the first refractive index, wherein the first inorganic material is different than the second inorganic material.
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