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US 2019/0244558 A1Published application
Display device and method of driving display device
AssigneeSamsung Display Co., Ltd.
InventorsIl-Hun JEONG, Jae-Hoon LEE
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Abstract
A method of driving a display device includes calculating an average load and an asymmetry by analyzing an input image data, and adjusting at least one of a high data voltage and a low data voltage, which are supplied to a display panel of the display device, based on the average load and the asymmetry.
Claims8
A method of driving a display device, the method comprising:
- generating a plurality of sub-image data by dividing an input image data supplied to a display panel of the display device into the plurality of sub-image data corresponding to a plurality of blocks of the display panel, respectively;
- calculating sub-loads for the plurality of blocks based on the plurality of sub-image data, respectively;
- and
- adjusting at least one of a high data voltage and a low data voltage, which are supplied to the display panel, by analyzing the sub-loads, wherein the adjusting the at least one of the high data voltage and the low data voltage comprises:
- calculating an asymmetry of the input image data based on the sub-loads;
- and
- generating a voltage control signal, which changes at least one of the high data voltage and the low data voltage, based on the sub-loads and the asymmetry, and
- wherein the generating the voltage control signal comprises:
- generating the voltage control signal based on at least one of a selected sub-load and the asymmetry when the asymmetry is within a specified range, wherein the selected sub-load is selected among the sub-loads;
- and
- generating the voltage control signal based on an average load of the sub-loads when the asymmetry is out of the specified range.
8 more elements
A method of driving a display device, the method comprising:
- calculating an average load and an asymmetry by analyzing an input image data;
- and
- adjusting at least one of a high data voltage and a low data voltage, which are supplied to a display panel of the display device, based on the average load and the asymmetry.
A display device comprising:
- a display panel;
- a sub-load calculator which generates a plurality of sub-image data by dividing an input image data into a plurality of blocks and calculates sub-loads for the plurality of blocks based on the plurality of sub-input image data, respectively;
- a data voltage controller which calculates an asymmetry of the input image data based on the sub-loads and generates a voltage control signal based on the sub-loads and the asymmetry;
- and
- a power supplier which adjusts at least one of a high data voltage and a low data voltage based on the voltage control signal, wherein the high data voltage and the low data voltage are supplied to the display panel.
2 more elements
Dependencies are inferred from the claim text.