Claims
- 1. A lighting device, comprising:an organic electroluminescent device; a substrate on which the organic electroluminescent device is formed, and having a first principle plane opposite to a second principal plane, the organic electroluminescent device formed on the second principal plane; and a light-guide element having a reflector, only a first part of the first principal plane being overlapped by the light-guide element, the light emitted from the organic electroluminescent device entering an inside of the light-guide element through only a second part of the first principal plane of the substrate and the first part of the light-guide element, and the reflector reflecting a light incident into the light-guide element.
- 2. The lighting device according to claim 1, a distance between the first principal plane and the second principal plane corresponding to a thickness of the substrate.
- 3. The lighting device according to claim 1, the light-guide element having a surface facing to an end face side of the substrate.
- 4. The lighting device according to claim 1, the light-guide element being thicker than that of the substrate.
- 5. The lighting device according to claim 1, the organic electroluminescent including a pixel region formed of pixels for displaying information and an illuminator region for illuminating the light-guide element.
- 6. The lighting device according to claim 5, the size of each organic electroluminescent in said pixel region is different from the one in said illuminator region.
- 7. A lighting device, comprising:a light-emitting device; a substrate, light emitted by the light-emitting device entering the substrate, the substrate having a first principal plane and a second principal plane opposite to the first principal plane; and a light-guide element, the light emitted from the light-emitting device entering an inside of the light-guide element through a first part of the light-guide element from a second part of the first principal plane; the second principal plane, partially overlapped by the light-guide element, and the first part of the light-guide element overlapping the second part of the first principal plane.
- 8. The lighting device according to claim 7, a distance between the first principal plane and the second principal plane corresponding to a thickness of the substrate.
- 9. The lighting device according to claim 7, the light-guide element having a surface facing to an end face side of the substrate.
- 10. The lighting device according to claim 7, the light-guide element being thicker than that of the substrate.
- 11. An electronic device, comprising:a lighting device having: a light-emitting device; a substrate, a light emitted by the light-emitting device entering the substrate, the substrate having a first principal plane and a second principal plane opposite to the first principal plane; a light-guide element, the light emitted from the light-emitting device entering an inside of the light-guide element through a first part of the light-guide element from a second part of the first principal plane, the second principal plane partially overlapped by the light-guide element, and the first part of the light-guide element overlapping the second part of the first principal plane; and a display unit disposed above the substrate and illuminated by a light emitted from the first principal plane.
- 12. The electronic device according to claim 11, a key input unit is formed in the light-guide element.
- 13. The electronic device according to claim 11, the light-guide element and the display unit are disposed on the same surface of the substrate, not overlapping each other.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2000-050161 |
Feb 2000 |
JP |
|
2000-383803 |
Dec 2000 |
JP |
|
Parent Case Info
This is a Divisional of application No. 09/791,638 filed Feb. 26, 2001 now U.S. Pat. No. 6,626,551. The entire disclosure of the application is hereby incorporated by reference herein in its entirety.
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