PHOTODETECTOR AND DISPLAY DEVICE
First Claim
1. A photodetector comprising:
- a first photodiode over a substrate;
a second photodiode over the substratea first color filter covering the first photodiode;
a second color filter covering the second photodiode;
a first microlens over the first color filter;
a second microlens over the second color filter; and
a first light-blocking layer comprising a part of the first color filter and a part of the second color filter between the first photodiode and the second photodiode.
1 Assignment
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Accused Products
Abstract
The amount of light incident on a photoelectric conversion element is increased while stray light from a backlight below a light-transmitting substrate is prevented from being incident on the photoelectric conversion element. A light-blocking film is formed with a color filter covering a photoelectric conversion element over a light-transmitting substrate and a color filter covering a photoelectric conversion element in an adjacent pixel which overlap each other at the side with respect to the direction in which light travels. In addition, by providing a microlens over the color filter, light which is conventionally not detected is collected to a photoelectric conversion element, and accordingly the amount of light incident on the photoelectric conversion element is increased.
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Citations
25 Claims
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1. A photodetector comprising:
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a first photodiode over a substrate; a second photodiode over the substrate a first color filter covering the first photodiode; a second color filter covering the second photodiode; a first microlens over the first color filter; a second microlens over the second color filter; and a first light-blocking layer comprising a part of the first color filter and a part of the second color filter between the first photodiode and the second photodiode. - View Dependent Claims (2, 3, 4, 5)
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6. A photodetector comprising:
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a first photodiode over a substrate; a second photodiode over the substrate; a first microlens over the first photodiode; a second microlens over the second photodiode; a first color filter covering the first microlens; a second color filter covering the second microlens; and a first light-blocking layer comprising a part of the first color filter and a part of the second color filter between the first photodiode and the second photodiode. - View Dependent Claims (7, 8, 9, 10)
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11. A photodetector comprising:
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a first photodiode over a substrate; a second photodiode over the substrate; a first light-transmitting insulating layer covering the first photodiode; a second light-transmitting insulating layer covering the second photodiode; a first color filter over the first photodiode with the first light-transmitting insulating layer interposed therebetween; a second color filter over the second photodiode with the second light-transmitting insulating layer interposed therebetween; a first microlens over the first color filter; a second microlens over the second color filter; and a first light-blocking layer provided in a groove which is provided between the first light-transmitting insulating layer and the second light-transmitting insulating layer. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A display device comprising:
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a backlight; a first light-transmitting substrate over the backlight; a liquid crystal layer over the first light-transmitting substrate; a second light-transmitting substrate over the liquid crystal layer; a first photodiode over the first light-transmitting substrate; a second photodiode over the first light-transmitting substrate; a first color filter covering the first photodiode; a second color filter covering the second photodiode; a first microlens over the first color filter; a second microlens over the second color filter; and a first light-blocking layer comprising a part of the first color filter and a part of the second color filter between the first photodiode and the second photodiode. - View Dependent Claims (18, 19, 20)
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21. A display device comprising:
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a substrate; a light-emitting layer over the substrate; a light-transmitting substrate over the light-emitting layer; a first photodiode over the substrate; a second photodiode over the substrate; a first color filter covering the first photodiode; a second color filter covering the second photodiode; a first microlens over the first color filter; a second microlens over the second color filter; and a first light-blocking layer comprising a part of the first color filter and a part of the second color filter between the first photodiode and the second photodiode. - View Dependent Claims (22, 23, 24, 25)
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Specification