Display device and driving method thereof
AssigneeLG Display Co., Ltd.
InventorsTaegung Kim, Kyungrok Kim, Jinhan Yoon
Life of this patent
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Abstract
A display device and a driving method of the display device are disclosed. The display device includes a display panel including a plurality of pixels, wherein each of the pixels is composed of three sub-pixels among a first color sub-pixel, a second color sub-pixel, a third color sub-pixel, and a fourth color sub-pixel, an image processing unit configured to change a color combination on a time axis in at least one of the pixels, and render sub-pixel data of an input image in the color combination, and a display panel driving circuit configured to write data received from the image processing unit to the pixels.
Claims10
A display device comprising:
- a display panel including a plurality of pixels, wherein each of the pixels is composed of three sub-pixels among a first color sub-pixel, a second color sub-pixel, a third color sub-pixel, and a fourth color sub-pixel;
- an image processing unit configured to change a color combination in at least one pixel of the pixels when an input image is input with a fixed pattern for a predetermined time, and render sub-pixel data of the input image in the changed color combination;
- and
- a display panel driving circuit configured to write data received from the image processing unit to the plurality of pixels,
- wherein the image processing unit is further configured to:
- store a gray scale-current table storing a voltage depending on a gray scale of data of the input image and a current corresponding to the voltage,
- calculate an average current level (ACL) of one frame data based on the gray scale-current table, and
- render the sub-pixel data in a color combination for which the ACL is smallest among color combinations of the plurality of pixels.
A driving method of a display device including a display panel including a plurality of pixels, wherein each of the pixels is composed of three sub-pixels among a first color sub-pixel, a second color sub-pixel, a third color sub-pixel, and a fourth color sub-pixel, comprising:
- changing a color combination in at least one pixel of the plurality of pixels when an input image is input with a fixed pattern for a predetermined time;
- rendering sub-pixel data of the input image in the changed color combination;
- and
- writing data rendered with the changed color combination to the plurality of pixels,
- wherein the driving method further comprises:
- providing a gray scale-current table storing a voltage depending on a gray scale of data of the input image and a current corresponding to the voltage;
- calculating an average current level (ACL) of one frame data based on the gray scale-current table, and
- rendering the sub-pixel data in a color combination for which the ACL is smallest among color combinations of the plurality of pixels.
Dependencies are inferred from the claim text.