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US 11,308,845 B2Granted
Display panel drive method and device
AssigneesHkc Corporation Limited, Chongqing Hkc Optoelectronics Technology Co., Ltd.
InventorChih Tsung Kang
Life of this patent
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Abstract
This application relates to a driving method of a display panel. The method includes: dividing sub pixels of the display panel into a plurality of sub pixel groups, each sub pixel group including the same quantity of color sub pixels; for each of the sub pixel groups, respectively adjusting a gamma value of a curve of brightness of each color sub pixel changing with a drive voltage; and for each sub pixel group, adjusting the adjusted gamma value according to a color property of the sub pixel group.
Claims16
A drive method of a display panel, comprising:
- dividing sub pixels of the display panel into a plurality of sub pixel groups, each sub pixel group comprising the same quantity of color sub pixels;
- for each of the sub pixel groups, respectively adjusting a gamma value of a curve of brightness of each color sub pixel changing with a drive voltage, comprising:
- acquiring a difference curve between a curve of brightness of each type of color sub pixel changing with a drive voltage at a front view angle and a curve of brightness of each type of color sub pixel changing with a drive voltage at a side view angle;
- and
- adjusting the gamma value of a corresponding color sub pixel in the sub pixel group according to the difference curve, comprising:
- setting different drive voltage intervals according to the difference curve, and setting a set gamma value corresponding to each drive voltage interval;
- and
- acquiring the drive voltage interval where a quantity of drive voltages distributed is greater than a set threshold, and setting the set gamma value corresponding to the acquired drive voltage interval as the gamma value of the corresponding color sub pixel in the sub pixel group;
- and
- for each of the sub pixel groups, adjusting the adjusted gamma value according to a color property of the sub pixel group.
7 more elements
A drive device of a display panel, comprising:
- a pixel dividing module, configured to divide sub pixels of the display panel into a plurality of sub pixel groups, each sub pixel group comprising various color sub pixels having the same quantity;
- a first adjustment module, configured to:
- for each of the sub pixel groups, respectively adjust a gamma value of a curve of brightness of each color sub pixel changing with a drive voltage, wherein the first adjustment module comprises:
- a curve acquiring unit, configured to acquire a difference curve between a curve of brightness of each type of color sub pixel changing with a drive voltage at a front view angle and a curve of brightness of each type of color sub pixel changing with a drive voltage at a side view angle;
- and
- a gamma value adjustment unit, configured to adjust a gamma value of a corresponding color sub pixel in the sub pixel group according to the difference curve, wherein the gamma value adjustment unit comprises:
- an interval setting subunit, configured to set different drive voltage intervals according to the difference curve, and set a set gamma value corresponding to each drive voltage interval;
- and
- a gamma value setting subunit, configured to acquire a drive voltage interval where quantity of drive voltages distributed is greater than a set threshold, and setting the set gamma value of the acquired drive voltage interval as the gamma value of a corresponding color sub pixel in the sub pixel group;
- and
- a second adjustment module, configured to:
- for each of the sub pixel groups, adjust the adjusted gamma value according to a color property of the sub pixel group.
9 more elements
A drive method of a display panel, comprising:
- dividing sub pixels of the display panel into a plurality of sub pixel groups, each sub pixel group comprising various color sub pixels of the same quantity;
- for each of the sub pixel groups, acquiring a difference curve between a curve of brightness of each type of color sub pixel changing with a drive voltage at a front view angle and a curve of brightness of each type of color sub pixel changing with a drive voltage at a side view angle, setting different drive voltage intervals according to the difference curve and setting a set gamma value corresponding to each drive voltage interval, acquiring the drive voltage interval where a quantity of drive voltages distributed is greater than a set threshold, and setting the set gamma value of the acquired drive voltage interval as the gamma value of a corresponding color sub pixel in the sub pixel group;
- and
- for each of the sub pixel groups, adjusting the adjusted gamma value according to a color property of the sub pixel group.
1 more element
Dependencies are inferred from the claim text.