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US 11,443,545 B2Granted
Sensor pixel circuit and sensor device comprising the same
AssigneeSilicon Display Technology
InventorsJong Woo Jin, Jin Hyeong Yu, Youn Duck Nam
Life of this patent
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Abstract
A sensor pixel circuit may include: a photodiode to which a current flows according to incident light; a storage capacitor connected in parallel to the photodiode; a first transistor for connecting a bias voltage and the photodiode by a contact of a recognition object; and a second transistor for transmitting charges stored in the storage capacitor to a data line.
Claims16
A sensor pixel circuit comprising:
- a photodiode to which a current flows according to incident light;
- a storage capacitor connected in parallel to the photodiode;
- a first transistor for connecting a bias voltage and the photodiode by a contact of a recognition object;
- and
- a second transistor for transmitting charges stored in the storage capacitor to a data line.
2 more elements
A sensor device comprising:
- a sensor panel including a plurality of sensor pixels;
- a gate driving circuit for supplying a scan signal to a plurality of sensor pixel rows through a plurality of scan lines;
- and
- a sensor signal lead out circuit for receiving a plurality of data signals supplied from the sensor pixels through a plurality of data lines,
- wherein one sensor pixel circuit of the sensor pixels includes
- a photodiode to which a current flows according to incident light,
- a storage capacitor connected in parallel to the photodiode,
- a first transistor for connecting a bias voltage and the photodiode by a contact of a recognition object, and
- a second transistor synchronized with a scan signal transmitted through a corresponding one of the scan lines and transmitting charges stored in the storage capacitor to a corresponding one of the data lines.
6 more elements
Dependencies are inferred from the claim text.