Display device
AssigneeSharp Kabushiki Kaisha
InventorsYasuhiro Yoshida, Yoichi Yamamoto, Satoshi Ueno
Life of this patent
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Abstract
A display device controls a signal applied to the n dots such that a sum of luminance of n dots (n is an integer of 1 or more) is virtually equal to an original luminance of the defective dot on the assumption that the n dots, which are adjacent to an electrically uncontrollable dot, are not originally illuminated. The display device also controls a signal applied to dots adjacent to the defective dot so as to display a color which is closer to an original color obtained by input signals to the defective dot and the adjacent dots.
Claims33
A display device that has a plurality of pixels, each pixel displaying by dots of at least three colors, said display comprising:
- control means for controlling a signal applied to one or more dots adjacent to a defective dot in order to compensate for a display defect caused by the defective dot, which is electrically uncontrollable;
- and
- wherein control is exercised on a signal applied to n dots, where n is an integer of 1 or more, such that a sum of luminance of the n dots adjacent to the defective dot is virtually equal to a sum of an original luminance that is obtained by a signal inputted to the defective dot and the n dots, where the sum of the luminance and the sum of the original luminance are computed by taking into consideration relative brightness of respective colors of the dots.
A display device that has a plurality of pixels, each pixel displaying by dots of at least three colors, said display comprising:
- control means for controlling a signal applied to one or more dots adjacent to a defective dot in order to compensate for a display defect caused by the defective dot, which is electrically uncontrollable;
- and
- wherein control is exercised on a signal applied to n dots, where n is an integer of 1 or more, so as to reduce a difference between a color obtained by illumination of the n dots adjacent to the defective dot and an original color obtained by a signal inputted to the defective dot and the n dots.
A display device that has a plurality of pixels, each pixel displaying by dots of at least three colors, said display comprising:
- control means for controlling a signal applied to one or more dots adjacent to a defective dot in order to compensate for a display defect caused by the defective dot, which is electrically uncontrollable
- wherein control is exercised on a signal applied to n dots, where n is an integer of 1 or more, such that a color obtained by illumination of the n dots, which are adjacent to the defective dot, is closer to an average of an original color of a pixel including the defective dot and an original color of one or more pixels adjacent to the pixel.
A display device, which has a plurality of pixels, each pixel displaying by dots of at least three colors, comprising:
- control means for controlling a signal applied to a plurality of dots adjacent to a defective dot such that a difference is reduced between a color obtained by illumination of the plurality of dots and an original color obtained by input signals to the defective dot and the plurality of dots, in order to compensate for a display defect caused by the defective dot which is electrically uncontrollable,
- wherein said control means performs an operation based on a function, which is obtained by a correlation relationship between an original input signal of the defective dot and a signal value to be applied to one of the plurality of dots in response to the input signal of the defective dot, so as to determine a signal value applied to the one of the plurality of dots, and then, said control means determines a signal value applied to another dot.
Dependencies are inferred from the claim text.