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US 11,961,454 B2Granted
Display device and driving method thereof
AssigneeSamsung Display Co., Ltd.
InventorsSi Beak Pyo, Seung Kyu Lee, Young Uk Hwang
Life of this patent
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Abstract
A display device includes: a plurality of pixels to receive data voltages based on converted grayscales; and a grayscale converter to: calculate first compensation offsets based on positions of the pixels and input grayscales for the pixels; convert the first compensation offsets into second compensation offsets according to a maximum luminance weight based on an input maximum luminance; and calculate the converted grayscales by applying the second compensation offsets to the input grayscales.
Claims15
A display device comprising:
- a plurality of pixels configured to display an image having an on-pixel ratio;
- and
- a user interface configured to manually set an input maximum luminance corresponding to a white grayscale value,
- wherein, when the input maximum luminance is set smaller than a first threshold value, at least a part of the image corresponding to the white grayscale value has a uniform maximum luminance, even when the on-pixel ratio is changed, and
- wherein, when the input maximum luminance is set greater than the first threshold value, at least a part of the image corresponding to the white grayscale value has various maximum luminances according to the on-pixel ratio.
2 more elements
A display device comprising:
- a plurality of pixels configured to display an image having an on-pixel ratio;
- a user interface configured to manually set an input maximum luminance;
- and
- a grayscale converter configured to:
- calculate first compensation offsets based on positions of the pixels and input grayscales for the pixels;
- convert the first compensation offsets into second compensation offsets according to a maximum luminance weight based on the input maximum luminance;
- and
- calculate converted grayscales by applying the second compensation offsets to the input grayscales,
- wherein, when the input maximum luminance is set smaller than a first threshold value, the image has a uniform maximum luminance, even when the on-pixel ratio is changed, and
- wherein, when the input maximum luminance is set greater than the first threshold value, the image has various maximum luminances according to the on-pixel ratio.
7 more elements
Dependencies are inferred from the claim text.