Display device that generates a pixel signal based on a predetermined gradation value
AssigneeMagnolia White Corporation
InventorYoshihiro Watanabe
Life of this patent
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Abstract
According to an aspect, a display device includes pixels, scanning lines, signal lines, a first circuit to supply a gate signal to each scanning line, a second circuit to supply a pixel signal to each signal lines, and a third circuit to generate the pixel signal. Each pixel is reset by a predetermined gradation value before the pixel signal is supplied. The third circuit is configured to perform overdrive on some or all of the pixels. A magnitude of the difference between the gradation value of the pixel signal generated by the overdrive and the predetermined gradation value is larger for the pixel signal supplied to the pixel coupled to the scanning line supplied with the gate signal at a later timing in the scanning.
Claims6
A display device comprising:
- a plurality of pixels;
- a plurality of scanning lines each of which is coupled to more than one of the pixels arrayed along a first direction;
- a plurality of signal lines each of which is coupled to more than one of the pixels arrayed along a second direction intersecting the first direction;
- a first circuit configured to supply a gate signal to each of the scanning lines;
- a second circuit configured to supply a pixel signal to each of the signal lines;
- and
- a third circuit configured to generate the pixel signal according to image data, wherein
- each pixel is configured to be supplied with the pixel signal in response to a timing of driving a switching element driven in accordance with the gate signal,
- each pixel is configured to be reset by a reset signal corresponding to a predetermined gradation value before the pixel signal is supplied,
- the first circuit is configured to perform scanning in which a timing of supplying the gate signal differs between the scanning lines when the pixel signal is supplied to each pixel,
- the third circuit is configured to perform overdrive on some or all of the pixels,
- the overdrive is processing of
- using a difference between a gradation value indicated by pixel data included in the image data and the predetermined gradation value as a reference value and
- generating the pixel signal corresponding to the gradation value the difference of which from the predetermined gradation value is larger than the reference value, and
- a magnitude of the difference between the gradation value of the pixel signal generated by the overdrive and the predetermined gradation value is larger for the pixel signal supplied to the pixel coupled to the scanning line supplied with the gate signal at a later timing in the scanning.
Dependencies are inferred from the claim text.