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US 2014/0176626 A1Published application
Display device and drive method for same
AssigneeSharp Kabushiki Kaisha
InventorTakashi Sasaki
Life of this patent
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Abstract
A liquid crystal display device includes a display screen which displays an input image based on input image data. In a case where the display screen displays an image having a uniform grayscale, the display screen displays a check-patterned image on a part that includes a luminance boundary. This makes it possible to provide (i) a displays device capable of certainly reducing display unevenness so as to increase display quality and (ii) a method of driving the display device.
Claims11
A display device comprising:
- a display screen on which an input image is displayed, the input image being based on input image data which has been inputted into the display device,
- in a case where an image having a uniform grayscale is to be displayed on at least part of the display screen, (i) the display screen displaying, on at least a predetermined region of the part, a patterned image which has been set in accordance with the input image in advance and (ii) the display screen displaying, on a remaining part other than the predetermined region, a grayscale-corrected image obtained by correcting an input grayscale of the input image, so that a display luminance is uniform across the remaining part.
A display device comprising:
- a display screen on which an input image is displayed, the input image being based on input image data which has been inputted into the display device,
- in a case where an image having a uniform grayscale is to be displayed on at least part of the display screen, (i) the display screen displaying, on at least a predetermined region of the part, a patterned image which has been set in accordance with the input image in advance and (ii) the patterned image being configured by arranging, in a mixed manner, pixels A each having A′ grayscale and pixels B each having B′ grayscale which is different from A′ grayscale, so that, in the part of the display screen, a longer distance from the predetermined region is relative to a lower mixture rate of the pixels A and B.
(canceled)
A method of driving a display device,
- said display device comprising:
- a display screen on which an input image is displayed, the input image being based on input image data which has been inputted into the display device,
- said method comprising the steps of:
- (i) receiving an input image from an external source;
- (ii) determining, by recognizing the input image, whether or not the input image needs to be corrected;
- (iii), in a case where it was determined that the input image needs to be corrected in the step (ii), obtaining a patterned image which corresponds to the input image thus recognized in the step (ii) and which is stored in a storage section in advance;
- and
- (iv) generating a corrected image in accordance with the patterned image thus obtained in the step (iii) and with the input image thus received in the step (i),
- in a case where it is determined in the step (ii) that the input image needs to be corrected, an image based on the corrected image being displayed, and
- in a case where an input grayscale of the input image is equal to or lower than a predetermined grayscale, it being determined in the step (ii) that the input image needs to be corrected whereas, in a case where the input grayscale of the input image is higher than the predetermined grayscale, it being determined in the step (ii) that the input image does not need to be corrected.
7 more elements
Dependencies are inferred from the claim text.