Semiconductor device
First Claim
Patent Images
1. A semiconductor device comprising:
- a first sensor in a pixel;
a second sensor out of the pixel;
a controller configured to set a drive condition of the first sensor in accordance with intensity of light obtained by the second sensor;
wherein the first sensor comprises;
an element configured to generate an electric signal when receiving light; and
a transistor whose gate terminal is electrically connected to one of terminals of the element.
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Abstract
A semiconductor device obtains highly accurate image data regardless of the intensity of incident light. The semiconductor device includes a first photo sensor provided in a pixel, a second photo sensor provided around the pixel, and a controller for setting the drive condition of the first photo sensor in accordance with the intensity of outside light obtained by the second photo sensor. An image is taken after the sensitivity of the first photo sensor is changed in accordance with the drive condition set by the controller. Thus, in the semiconductor device, an image can be taken using the first photo sensor whose sensitivity is optimized in accordance with the intensity of incident light.
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Citations
21 Claims
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1. A semiconductor device comprising:
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a first sensor in a pixel; a second sensor out of the pixel; a controller configured to set a drive condition of the first sensor in accordance with intensity of light obtained by the second sensor; wherein the first sensor comprises; an element configured to generate an electric signal when receiving light; and a transistor whose gate terminal is electrically connected to one of terminals of the element. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A semiconductor device comprising:
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a first sensor in a pixel; a second sensor out of the pixel; a controller configured to set a drive condition of the first sensor in accordance with intensity of light obtained by the second sensor; wherein the first sensor comprises; an element configured to generate an electric signal when receiving light; a first transistor whose one of a source terminal and a drain terminal is electrically connected to one of terminals of the element; and a second transistor whose gate terminal is electrically connected to the other one of the source terminal and the drain terminal of the first transistor. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A semiconductor device comprising:
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a first sensor in a pixel; a second sensor out of the pixel; a controller configured to set a drive condition of the first sensor in accordance with intensity of light obtained by the second sensor; wherein the first sensor comprises; an element configured to generate an electric signal when receiving light; a first transistor whose one of a source terminal and a drain terminal is electrically connected to one of terminals of the element; a second transistor whose gate terminal is electrically connected to the other one of the source terminal and the drain terminal of the first transistor; and a third transistor whose one of a source terminal and a drain terminal is electrically connected to one of a source terminal and a drain terminal of the second transistor. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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Specification