Projection type image display apparatus and image display system
First Claim
1. A projection type image display apparatus comprising:
- an electroluminescence element with three luminescent layers emitting three primary colors layered, each of the luminescent layers having emission pixels arranged in two-dimensional matrix form and emitting an image modulation pattern light including an intensity distribution of respective colors according to an input signal based on image information; and
a projection optical system that projects light emitted from the electroluminescence element onto an object and displays an additive color mixture image, wherein said projection optical system has axial chromatic aberration in such a way that the positions of the plane of the luminescent layer and the plane of the object have an optically conjugate relationship at an emission intensity median point wavelength of a waveband of each of the colors.
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Abstract
A projection type image display apparatus that suppresses power input to a layered type electroluminescence element, maintains high luminance efficiency and allows image projection at high brightness. The projection type image display apparatus includes an electroluminescence element provided with three layered luminescent layers that emit three primary colors respectively. Each luminescent layer includes emission pixels which are arranged in a two-dimensional matrix and emits an image modulation pattern light including an intensity distribution of respective colors according to an input signal based on image information. The projection optical system has axial chromatic aberration in such a way that the positions of the plane of each luminescent layer and the plane of an object have an optically conjugate relationship with respect to an emission intensity median point wavelength of the waveband of each color.
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Citations
18 Claims
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1. A projection type image display apparatus comprising:
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an electroluminescence element with three luminescent layers emitting three primary colors layered, each of the luminescent layers having emission pixels arranged in two-dimensional matrix form and emitting an image modulation pattern light including an intensity distribution of respective colors according to an input signal based on image information; and
a projection optical system that projects light emitted from the electroluminescence element onto an object and displays an additive color mixture image, wherein said projection optical system has axial chromatic aberration in such a way that the positions of the plane of the luminescent layer and the plane of the object have an optically conjugate relationship at an emission intensity median point wavelength of a waveband of each of the colors. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A projection type image display apparatus comprising:
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an electroluminescence element having a plurality of pixels that can be modulated separately;
a projection optical system that projects light emitted from the pixels in the electroluminescence element onto an object to display an image;
a sensor that detects brightness of ambient light that illuminates the object; and
a controller that controls brightness of light emissions of the electroluminescence element based on the brightness detected by the sensor. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification