Projection type image display apparatus and display device
First Claim
Patent Images
1. A projection type image display apparatus comprising:
- an electroluminescence element which has a plurality of pixels that can each emit modulated light;
a projection optical system which projects the light emitted from each of the pixels in the electroluminescence element onto an object to display an image;
a sensor which detects brightness of ambient light that illuminates the object; and
a controller which controls brightness of the light emitted from the electroluminescence element based on the brightness of the ambient light, whereinthe controller reduces overall maximum brightness of the light emitted from the electroluminescence element in such a way that the amount of light projected onto the object is reduced as the brightness of the ambient light decreases.
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Abstract
A projection type image display apparatus includes an electroluminescence element which has a plurality of pixels that can each emit modulated light, a projection optical system which projects the light emitted from each of the pixels in the electroluminescence element onto an object to display an image, and a sensor which detects brightness of ambient light that illuminates the object. A controller controls brightness of the light emitted from the electroluminescence element based on the brightness of the ambient light.
32 Citations
11 Claims
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1. A projection type image display apparatus comprising:
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an electroluminescence element which has a plurality of pixels that can each emit modulated light; a projection optical system which projects the light emitted from each of the pixels in the electroluminescence element onto an object to display an image; a sensor which detects brightness of ambient light that illuminates the object; and a controller which controls brightness of the light emitted from the electroluminescence element based on the brightness of the ambient light, wherein the controller reduces overall maximum brightness of the light emitted from the electroluminescence element in such a way that the amount of light projected onto the object is reduced as the brightness of the ambient light decreases. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A display device comprising:
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an electroluminescence element which has a plurality of pixels that can each emit modulated light; a display which displays an image by using the light emitted from each pixel in the electroluminescence element; a sensor which detects brightness of ambient light that illuminates the display; and a controller which controls brightness of the light emitted from the electroluminescence element based on the brightness of the ambient light, wherein the controller reduces overall maximum brightness of the light emitted from the electroluminescence element as the brightness of the ambient light decreases.
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Specification