Display device, display module, and electronic device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorYuki OKAMOTO
Life of this patent
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Abstract
A display device with low power consumption is provided. A display device having high visibility regardless of the ambient brightness is provided. The display device includes a light-receiving element, a display element, a first transistor, and a second transistor. One of a source and a drain of the first transistor is electrically connected to one electrode of the light-receiving element. The one of the source and the drain of the first transistor is electrically connected to one of a source and a drain of the second transistor. The display device has a function of, by turning on the second transistor, changing the gray level of the display element in accordance with the amount of light detected by the light-receiving element.
Claims18
A display device comprising:
- a light-receiving element;
- a display element;
- a first transistor;
- and
- a second transistor,
- wherein one of a source and a drain of the first transistor is electrically connected to a first electrode of the light-receiving element,
- wherein the one of the source and the drain of the first transistor is electrically connected to one of a source and a drain of the second transistor, and
- wherein the display device is configured to, by turning on the second transistor, change a gray level of the display element in accordance with the amount of light detected by the light-receiving element.
A display device comprising:
- a photodetector circuit;
- and
- a pixel circuit,
- wherein the photodetector circuit comprises:
- a light-receiving element;
- a first transistor;
- and
- a second transistor,
- wherein the pixel circuit comprises:
- a light-emitting element;
- and
- a third transistor,
- wherein one of a source and a drain of the first transistor is electrically connected to a first electrode of the light-receiving element,
- wherein the one of the source and the drain of the first transistor is electrically connected to one of a source and a drain of the second transistor,
- wherein the other of the source and the drain of the second transistor is electrically connected to one of two gates of the third transistor, and
- wherein one of a source and a drain of the third transistor is electrically connected to a first electrode of the light-emitting element.
A display device comprising:
- a photodetector circuit;
- and
- a pixel circuit,
- wherein the photodetector circuit comprises:
- a light-receiving element;
- a first transistor;
- and
- a second transistor,
- wherein the pixel circuit comprises:
- a liquid crystal element;
- and
- a third transistor,
- wherein one of a source and a drain of the first transistor is electrically connected to a first electrode of the light-receiving element,
- wherein the one of the source and the drain of the first transistor is electrically connected to one of a source and a drain of the second transistor,
- wherein the other of the source and the drain of the second transistor is electrically connected to one of a source and a drain of the third transistor, and
- wherein the one of the source and the drain of the third transistor is electrically connected to a first electrode of the liquid crystal element.
Dependencies are inferred from the claim text.