Light Emitting Device and Method for Driving Thereof
First Claim
1. A method for driving a display device including a plurality of pixels arranged in a matrix form, a plurality of source signal lines inputting a video signal to the plurality of pixels, and a source driver outputting signals to each of the plurality of source signal lines, wherein the source driver includes a shift register and an image signal input line to which a video signal is input, the method comprising:
- determining whether or not video signals corresponding to all of pixels in one row of the plurality of pixels are equal to one another;
in a case where video signals corresponding to at least two pixels of the video signals corresponding to the pixels in one row of the plurality of pixels are different from each other, sequentially outputting video signals input to the image signal input line to the plurality of source signal lines in synchronization with a sampling pulse output from the shift register; and
in a case where the video signals corresponding to all of the pixels in one row of the plurality of pixels are equal to one another, stopping input of a start pulse to the shift register and simultaneously outputting the video signals input to the image signal input line to all of the plurality of source signal lines.
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Abstract
An object of the present invention is to provide a display device consuming lower amounts of power. The display device determines whether or not video signals corresponding to all of pixels in one row of a plurality of pixels are equal to one another. In a case where the video signals corresponding to at least two pixels among the video signals corresponding to all of the pixels in one row of the plurality of pixels, are different from each other, video signals input to an image signal input line are sequentially output to a plurality of source signal lines in synchronization with a sampling pulse output from a shift register. On the other hand, when the video signals corresponding to all of the pixels in one row of the plurality of pixels are equal to one another, input of a start pulse to the source driver is stopped, and the video signals input to the image signal input line are simultaneously output to the plurality of source signal line.
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Citations
2 Claims
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1. A method for driving a display device including a plurality of pixels arranged in a matrix form, a plurality of source signal lines inputting a video signal to the plurality of pixels, and a source driver outputting signals to each of the plurality of source signal lines, wherein the source driver includes a shift register and an image signal input line to which a video signal is input, the method comprising:
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determining whether or not video signals corresponding to all of pixels in one row of the plurality of pixels are equal to one another; in a case where video signals corresponding to at least two pixels of the video signals corresponding to the pixels in one row of the plurality of pixels are different from each other, sequentially outputting video signals input to the image signal input line to the plurality of source signal lines in synchronization with a sampling pulse output from the shift register; and in a case where the video signals corresponding to all of the pixels in one row of the plurality of pixels are equal to one another, stopping input of a start pulse to the shift register and simultaneously outputting the video signals input to the image signal input line to all of the plurality of source signal lines.
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2-24. -24. (canceled)
Specification