Display device for compensating for mura and method for compensating for mura
AssigneeLG Display Co., Ltd.
InventorsByeong Seong So, Do Young Jung
Life of this patent
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Abstract
A display device for compensating for mura and a method for compensating for mura, are discussed. The display device in one example can include a display panel having a plurality of pixel lines disposed in a gate line direction, and a display panel driver configured to write low-grayscale line data on first pixel lines included in a first display area of the display panel. The display panel driver can write high-grayscale line data on second pixel lines included in a second display area of the display panel, and adjust a data writing period of the first pixel lines included in a mura occurrence area through identifying of the mura occurrence area in the first display area.
Claims15
A method for compensating for mura in a display device, the method comprising:
- displaying, on a display panel of the display device, frame data including high-grayscale line data and low-grayscale line data;
- identifying a mura occurrence area in a first display area of the display panel on which the low-grayscale line data are displayed;
- and
- adjusting and inputting, to first pixel lines, a pulse width of a gate signal that is input to the first pixel lines included in the mura occurrence area in order to compensate for the mura of the mura occurrence area,
- wherein the mura occurrence area comprises a dark stripe area on which the mura is displayed with a luminance that is smaller than a luminance value of the low-grayscale line data, and
- wherein the adjusting comprises at least one of shortening the pulse width from a reference pulse width for the dark stripe area.
A display device for compensating for mura, the display device comprising:
- a display panel including a plurality of pixel lines disposed in a gate line direction;
- and
- a display panel driver configured to write low-grayscale line data on first pixel lines included in a first display area of the display panel, write high-grayscale line data on second pixel lines included in a second display area of the display panel, and adjust a data writing period of the first pixel lines included in a mura occurrence area through identifying of the mura occurrence area in the first display area,
- wherein the mura occurrence area comprises a dark stripe area on which the mura is displayed with a luminance that is smaller than a luminance value of the low-grayscale line data, and
- wherein adjusting the data writing period comprises shortening the data writing period for the dark stripe area.
A method for compensating for mura in a display device, the method comprising:
- displaying, on a display panel of the display device, frame data including high-grayscale line data and low-grayscale line data;
- identifying a mura occurrence area in a first display area of the display panel on which the low-grayscale line data are displayed;
- and
- adjusting and inputting, to first pixel lines, a pulse width of a gate signal that is input to the first pixel lines included in the mura occurrence area in order to compensate for the mura of the mura occurrence area,
- wherein the adjusting comprises at least one of shortening the pulse width from a reference pulse width in response to the mura occurrence area including a dark stripe area or extending the pulse width from the reference pulse width in response to the mura occurrence area including a bright stripe area.
Dependencies are inferred from the claim text.