Driving unit, display device and method of driving a display panel
AssigneeSamsung Display Co., Ltd.
InventorsJae-Hoon Lee, Do-Hyung Ryu, Seung-Ho Park
Life of this patent
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Abstract
A driver for a display panel includes a driving time accumulator, a ditherer, and a data signal generator. The driving time accumulator determines an accumulated driving time of the display panel. The ditherer determines an amount of dither based at least in part on the accumulated driving time, and performs a dithering operation on input image data with the determined amount of dither. The data signal generator generates a data signal for the display panel based at least in part on the input image data on which the dithering operation is to be performed.
Claims17
A driver for a display panel, comprising:
- a driving time accumulator to determine an accumulated driving time of the display panel for still and moving image data;
- a ditherer to increase an amount of dither as the accumulated driving time increases and to perform a dithering operation on the image data with the increased amount of dither, the increased amount of dither including a decrease in a number of gray levels or an increase in a number of pixels in a unit block for the dithering operation;
- and
- a data signal generator to generate a data signal for the display panel based at least in part on the dithered image data.
A display device, comprising:
- a display panel including a plurality of pixels and a plurality of regions;
- and
- a driver to drive the display panel, the driver including:
- a driving time accumulator to determine accumulated region driving times for respective ones of the regions and to determine an accumulated driving time of the display panel based at least in part on the accumulated region driving times;
- a ditherer to change an amount of dither based at least in part on the accumulated driving time and to perform a dithering operation on image data with the changed amount of dither;
- and
- a data signal generator to generate a data signal for the display panel based at least in part on the dithered image data.
A method for driving a display panel, the method comprising:
- determining an accumulated driving time of the display panel for still and moving image data;
- performing a dithering operation on the image data with an amount of dither that is increased as the accumulated driving time increases, the increased amount of dither including a decreased number of gray levels or an increased a number of pixels in a unit block for the dithering operation;
- and
- generating a data signal for the display panel based at least in part on the image data on which the dithering operation is performed.
Dependencies are inferred from the claim text.