US 12,315,465 B2
Electro-optical device and electronic apparatus
Takehiko Kubota, Matsumoto (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Feb. 15, 2024, as Appl. No. 18/442,098.
Claims priority of application No. 2023-022274 (JP), filed on Feb. 16, 2023.
Prior Publication US 2024/0282270 A1, Aug. 22, 2024
Int. Cl. G09G 3/3291 (2016.01); G09G 3/3233 (2016.01); G09G 3/3266 (2016.01)
CPC G09G 3/3291 (2013.01) [G09G 3/3233 (2013.01); G09G 3/3266 (2013.01); G09G 2360/144 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An electro-optical device comprising:
at least one of an optical sensor configured to detect a brightness of ambient light and a temperature sensor configured to detect a temperature;
a pixel circuit provided corresponding to a data line and a scanning line; and
a control circuit configured to control the pixel circuit, wherein
the pixel circuit includes
a light-emitting element configured to emit light at a brightness corresponding to a current flowing between two electrodes of the light-emitting element, and
a drive transistor configured to supply, to the light-emitting element, a current corresponding to a voltage between a potential of a gate node of the drive transistor and a potential of a source node of the drive transistor,
in a writing period, the control circuit supplies, to the gate node via the data line, a potential corresponding to a gradation level, and
in a first initialization period before the writing period, the control circuit executes a first operation or a second operation in accordance with a detection result of the optical sensor or a detection result of the temperature sensor,
the first operation being an operation of supplying, via the data line, a predetermined potential to one electrode of the light-emitting element,
the second operation being an operation of distributing, to the one electrode, an electric charge accumulated in the data line.