US 12,236,881 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 Mar. 22, 2024, as Appl. No. 18/614,047.
Claims priority of application No. 2023-047854 (JP), filed on Mar. 24, 2023.
Prior Publication US 2024/0321209 A1, Sep. 26, 2024
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2310/08 (2013.01); G09G 2330/021 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An electro-optical device comprising:
a first pixel circuit that is provided corresponding to a data line and a first scanning line;
a second pixel circuit that is provided corresponding to the data line and a second scanning line; and
a control circuit that controls the first pixel circuit and the second pixel circuit,
wherein
the first pixel circuit includes
a first light emitting element that emits light with a luminance corresponding to a current flowing between two electrodes, and
a first drive transistor that causes a current corresponding to a voltage between a potential of a gate node and a potential of a source node to flow to the first light emitting element,
the second pixel circuit includes
a second light emitting element that emits light with a luminance corresponding to a current flowing between two electrodes, and
a second drive transistor that causes a current corresponding to a voltage between the potential of the gate node and the potential of the source node to flow to the second light emitting element,
the control circuit, during a first horizontal scanning period in which the first scanning line is selected in a first frame, supplies a potential corresponding to a gradation level to a gate node of the first drive transistor via the data line in a first writing period, and executes a first operation in a first initialization period before the first writing period,
the control circuit, during a second horizontal scanning period in which the second scanning line is selected, supplies a potential corresponding to a gradation level to a gate node of the second drive transistor via the data line in a second writing period, and executes a second operation in a second initialization period before the second writing period,
the first operation is an operation of supplying a first potential to one of the two electrodes via the data line, the first potential being different from a potential corresponding to the gradation level,
the second operation is an operation of setting a potential of the data line and a potential of the one electrode to a potential between the first potential and the second potential, and
the second potential is a potential for setting the first drive transistor and the second drive transistor to be in an OFF state when the second potential is supplied to the gate node.