Display device and electronic device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsSusumu Kawashima, Koji Kusunoki, Tomoaki Atsumi
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AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsSusumu Kawashima, Koji Kusunoki, Tomoaki Atsumi
Estimating the term…
A display device whose change in chromaticity is small and grayscale controllability is high is provided. Light emission of the light-emitting device can be performed by PAM and PWM control (a pulse width control involving changes in amplitude), so that the amount of change in chromaticity can be reduced and the controllability on the low grayscale side can be increased. The display device includes a pulse-signal-generation portion and a light-emitting control portion in a pixel and is capable of charging a signal potential in the light-emitting control portion and then discharging the signal potential in accordance with a pulse signal generated in the pulse-signal-generation portion. Thus, the light-emitting device can emit light in a desired period with desired emission intensity.
A display device comprising:
A display device comprising:
A display device comprising:
Dependencies are inferred from the claim text.