Display apparatus
First Claim
Patent Images
1. A display apparatus, comprising:
- a plane optical modulation panel;
a planar light source arranged facing one surface of the plane optical modulation panel and having, in a plane substantially parallel to the plane optical modulation panel, a first light emission region that includes an electroluminescent element having an optical resonator emitting light in a first color, and a second light emission region that includes an electroluminescent element having an optical resonator emitting light in a second color different from the first color, each of the light emission regions having different thickness, the light emitted from the resonators having directivity in the frontal direction thereof, a projection lens arranged at a frontal position of the plane optical modulation for enlarging images formed on the plane optical modulation panel, the projection lens projecting the images onto a screen; and
a controller that independently controls electric current supplied to the electroluminescent elements of the different colors to adjust the color in which the optical modulation panel is illuminated.
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Abstract
There is provided behind an optical modulation panel (101) which is not provided with a color filter a planar light source which is provided with EL elements (100R, 100G and 100B) with a built-in optical resonator structure adapted to emit light in red, green and blue and which are periodically arranged on a single glass substrate (103). Lights of different colors obtained by lighting the EL elements (100R, 100G and 100B) are modulated by an optical modulation panel (101) to obtain a color image.
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Citations
15 Claims
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1. A display apparatus, comprising:
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a plane optical modulation panel;
a planar light source arranged facing one surface of the plane optical modulation panel and having, in a plane substantially parallel to the plane optical modulation panel, a first light emission region that includes an electroluminescent element having an optical resonator emitting light in a first color, and a second light emission region that includes an electroluminescent element having an optical resonator emitting light in a second color different from the first color, each of the light emission regions having different thickness, the light emitted from the resonators having directivity in the frontal direction thereof, a projection lens arranged at a frontal position of the plane optical modulation for enlarging images formed on the plane optical modulation panel, the projection lens projecting the images onto a screen; and
a controller that independently controls electric current supplied to the electroluminescent elements of the different colors to adjust the color in which the optical modulation panel is illuminated. - View Dependent Claims (2, 3, 4)
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5. A display apparatus, comprising:
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a plane optical modulation panel;
a planar light source arranged facing one surface of the optical modulation panel and having, in a plane substantially parallel to the plane optical modulation panel, a first light emission region that includes an electroluminescent element having an optical resonator emitting light in a first color, a second light emission region that includes an electroluminescent element having an optical resonator emitting light in a second color different from the first color, and a third light emission region including an electroluminescent element having an optical resonator emitting light in a third color different from the first and second colors, each of the light emission regions having different thickness, the light emitted from the resonators having directivity in the frontal direction thereof;
a projection lens arranged at a frontal position of the plane optical modulation for enlarging images formed on the plane optical modulation panel, the projection lens projecting the images onto a screen; and
a controller that independently controls electric current supplied to the electroluminescent elements of the different colors to adjust the color in which the optical modulation panel is illuminated. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A display apparatus, comprising:
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a plane optical modulation panel; and
a planar light source arranged facing one surface of the optical modulation panel and having, in a plane substantially parallel to the plane of the optical modulation panel, a first light emission region that includes an electroluminescent element having an optical resonator emitting light in a first color, a second light emission region that includes an electroluminescent element having an optical resonator emitting light in a second color different from the first color, and a third light emission region including an electroluminescent element having an optical resonator emitting light in a third color different from the first and second colors, each of the first, second and third light emission regions having a light emission region of red light emission, a light emission region of green light emission, and a light emission region of blue light emission, each of the light emission regions having different thickness, the light emitted from the resonators having directivity in the frontal direction thereof, a projection lens arranged at a frontal position of the plane optical modulation for enlarging images formed on the plane optical modulation panel, the projection lens projecting the images onto a screen; and
a controller that independently controls electric current supplied to the electroluminescent elements of the different colors to adjust the color in which the optical modulation panel is illuminated. - View Dependent Claims (13, 14, 15)
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Specification