| CPC G09G 3/3233 (2013.01) [G09G 3/2007 (2013.01); G09G 3/32 (2013.01); H01L 25/167 (2013.01); H10D 86/481 (2025.01); H10D 86/60 (2025.01); H10K 59/1216 (2023.02); G09G 2300/0852 (2013.01); G09G 2310/0202 (2013.01); G09G 2310/0262 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0626 (2013.01)] | 18 Claims |
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1. A display device comprising:
a display panel; and
a control circuit configured to control the display panel,
wherein the display panel includes:
a plurality of light-emitting elements and a plurality of pixel circuits, each pixel circuit being configured to control light emission of a light-emitting element;
first data lines to supply first data signals to the plurality of pixel circuits;
second data lines to supply second data signals to the plurality of pixel circuits; and
scanning lines to control the plurality of pixel circuits,
wherein each pixel circuit is connected to one or more scanning lines and includes:
a driving transistor including a first gate electrode facing a semiconductor layer across a first gate insulating layer and a second gate electrode facing the semiconductor layer across a second gate insulating layer, the driving transistor being configured to control driving current to be supplied to the light-emitting element;
a first switching transistor connected to a first data line and the first gate electrode, the first switching transistor being controlled to be ON or OFF in accordance with a scanning signal supplied to a scanning line; and
a second switching transistor connected to a second data line and the second gate electrode, the second switching transistor being controlled to be ON or OFF in accordance with the scanning signal supplied to the scanning line, and
wherein the control circuit is configured to:
supply a first data signal to the first gate electrode through the first data line when the first switching transistor is ON and subsequently turn off the first switching transistor;
supply a second data signal to the second gate electrode through the second data line when the second switching transistor is ON and subsequently turn off the second switching transistor;
control the first data signal and the second data signal supplied to each pixel circuit in such a manner that voltage of the second data signal varies depending on voltage of the first data signal according to a predetermined relationship between the first and second data signal; and
control the first data signal and the second data signal in such a manner that the voltage of the second data signal varies in the opposite direction to a variation of the voltage of the first data signal for at least a part of a gray scale range of the light-emitting element from the lowest gray scale level to the highest gray scale level, the part of the gray scale range including the lowest gray scale level.
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