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US 9,773,832 B2Granted
Semiconductor device and electronic device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorYoshiyuki Kurokawa
Life of this patent
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Abstract
A semiconductor device including pixels arranged in a matrix of n rows and m columns, in which the pixels in the m-th column are shielded from light, is provided.
Claims15
A semiconductor device comprising:
- pixels arranged in a matrix of n rows and m columns, where each of n and m is a natural number of 2 or more, the pixels each including a first transistor, a second transistor, a third transistor, a photoelectric conversion element, and a first capacitor;
- a plurality of first circuits;
- and
- a second circuit,
- wherein one electrode of the photoelectric conversion element is electrically connected to one of a source electrode and a drain electrode of the first transistor,
- wherein the other of the source electrode and the drain electrode of the first transistor is electrically connected to one of a source electrode and a drain electrode of the second transistor,
- wherein the other of the source electrode and the drain electrode of the first transistor is electrically connected to a gate electrode of the third transistor,
- wherein the other of the source electrode and the drain electrode of the first transistor is electrically connected to one electrode of the first capacitor,
- wherein the other electrode of the first capacitor is electrically connected to a first wiring provided in each row,
- wherein one of a source electrode and a drain electrode of the third transistor is electrically connected to a second wiring provided in each column,
- wherein the plurality of first circuits are electrically connected to the second wirings electrically connected to pixels in first to (m−1)th columns,
- wherein the first wiring is capable of supplying a different potential to each row,
- wherein the second wiring electrically connected to pixels in an m-th column is electrically connected to a first power supply line,
- wherein the second wirings electrically connected to the pixels in the first to (m−1)th columns, the plurality of first circuits, and the first power supply line are electrically connected to the second circuit,
- wherein the pixels in the m-th column are shielded from light, and
- wherein a third wiring is electrically connected to one of the second wirings through a fourth transistor and is electrically connected to another of the second wirings through a fifth transistor.
13 more elements
A semiconductor device comprising:
- a first pixel;
- a second pixel adjacent to the first pixel;
- a third pixel adjacent to the first pixel;
- a fourth pixel adjacent to the second pixel and the third pixel, wherein each of the first pixel, the second pixel, the third pixel, and the fourth pixel comprises a capacitor and a first transistor whose gate is electrically connected to one electrode of the capacitor;
- a first wiring electrically connected to the other electrode of the capacitor of the first pixel and the other electrode of the capacitor of the second pixel;
- a second wiring electrically connected to one of a source and a drain of the first transistor of the first pixel and one of a source and a drain of the first transistor of the third pixel;
- a third wiring electrically connected to the other electrode of the capacitor of the third pixel and the other electrode of the capacitor of the fourth pixel;
- a fourth wiring electrically connected to one of a source and a drain of the first transistor of the second pixel and one of a source and a drain of the first transistor of the fourth pixel;
- a circuit comprising a second transistor, a third transistor and a fifth wiring,
- wherein the fifth wiring is electrically connected to the second wiring through the second transistor and is electrically connected to the fourth wiring through the third transistor.
7 more elements
Dependencies are inferred from the claim text.