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US 9,754,549 B2Granted
Source driver with low operating power and liquid crystal display device having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJaewook Kwon, Jihoon Kim, Jun-Jae Lee
Life of this patent
Estimating the term…
Abstract
Provided are a source driver configured to drive a data line of a display panel and a liquid crystal display (LCD) device including the same. The source drive configured to compare whether data of consecutive gate lines in the display panel and data of adjacent data lines in the display panel are identical or not, and selectively disable output amplifiers connected to the data line having identical data.
Claims20
A source driver comprising:
- a plurality of output amplifiers configured to drive data lines of a display panel;
- and
- a data latch configured to determine whether data in a previous gate line is identical to data in a current gate line, determine whether data of adjacent data lines in the display panel are identical, selectively disable output amplifiers connected to the data line having identical data, and enable all of the plurality of output amplifiers in response to determining that data of the previous gate line and the current gate line are different while data of adjacent data lines are same.
A liquid crystal display (LCD) device comprising:
- a display panel comprising a plurality of data lines;
- and
- a source driver comprising a plurality of output amplifiers configured to drive the plurality of data lines,
- wherein the source driver adjusts current of the plurality of output amplifiers based on a comparison result of whether image data of adjacent columns is identical or not, and a comparison result of whether image data of consecutive rows is identical or not.
1 more element
A liquid crystal display (LCD) device comprising:
- a display panel comprising a plurality of data lines;
- and
- a source driver comprising a plurality of output amplifiers configured to drive the plurality of data lines,
- wherein the source driver controls some of the plurality of output amplifiers connected to columns with respect to columns which display an identical image to be selectively disabled according to determining of whether data of current row and subsequent rows are changed.
1 more element
Dependencies are inferred from the claim text.