Display device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorYasunori Yoshida
Life of this patent
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Abstract
To provide an active matrix display device in which power consumption of a signal line driver circuit can be suppressed, so that power consumption of the entire memory can be suppressed. A plurality of memory circuits which can write data of a video signal input to a pixel in one line period and can hold the data are provided in a signal line driver circuit of a display device. Then, the data held in each memory circuit is input to a pixel of a corresponding line as a video signal. By providing two or more memory circuits in a driver circuit, pieces of data of video signals corresponding to two or more line periods can be concurrently held in the memory circuits.
Claims1
A display device comprising:
- a pixel portion including a plurality of pixels;
- and
- a signal line driver circuit,
- wherein the signal line driver circuit includes a first memory circuit which can hold pieces of data of the video signals corresponding to a plurality of line periods which appear discontinuously.
Dependencies are inferred from the claim text.