Method of operating an organic light emitting display device, and organic light emitting display device
AssigneeSamsung Display Co., Ltd.
InventorJong-Woong Park
Life of this patent
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Abstract
In a method of operating an organic light emitting display device, the organic light emitting display device including a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel, the method includes: receiving input data; calculating an on-pixel ratio (OPR) representing a ratio of a driving amount of the input data to a maximum driving amount; adjusting at least one gamma voltage of a first gamma voltage for the red, green, and blue sub-pixels and a second gamma voltage for the white sub-pixel according to the calculated OPR; and displaying an image corresponding to the input data using the first and second gamma voltages.
Claims19
A method of operating an organic light emitting display device, the organic light emitting display device comprising a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel, the method comprising:
- receiving input data;
- calculating an on-pixel ratio (OPR) representing a ratio of a driving amount of the input data to a maximum driving amount;
- adjusting at least one gamma voltage of a first gamma voltage for the red, green, and blue sub-pixels and a second gamma voltage for the white sub-pixel according to the calculated OPR;
- and
- displaying an image corresponding to the input data using the first and second gamma voltages.
A method of operating an organic light emitting display device, the organic light emitting display device comprising a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel, the method comprising:
- receiving input data;
- calculating an on-pixel ratio (OPR) representing a ratio of a driving amount of the input data to a maximum driving amount;
- converting the input data into RGBW data comprising RGB data for the red, green, and blue sub-pixels and W data for the white sub-pixel;
- adjusting at least one data of the RGB data and the W data according to the calculated OPR;
- and
- displaying an image based on the RGB data and the W data.
An organic light emitting display device, comprising:
- a display panel comprising a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel;
- a data converter configured to receive input data, to convert the input data into RGBW data comprising RGB data for the red, green, and blue sub-pixels and W data for the white sub-pixel, and to calculate an on-pixel ratio (OPR) representing a ratio of a driving amount of the input data to a maximum driving amount;
- a gamma voltage generator configured to generate a first gamma voltage for the red, green, and blue sub-pixels and a second gamma voltage for the white sub-pixel, and to adjust at least one gamma voltage of the first gamma voltage and the second gamma voltage according to the calculated OPR;
- and
- a source driver configured to drive the red, green, blue, and white sub-pixels according to the RGBW data by using the first and second gamma voltages.
Dependencies are inferred from the claim text.