Source driver and display device having the same
AssigneeSamsung Display Co., Ltd.
InventorsCheol Min Kim, Oh Kyong Kwon, Jae Beom Choi, Won Chang Chung, Joon Ha Park
Life of this patent
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Abstract
A source driver includes a gamma reference voltage generating unit and a gamma signal supplying unit. The gamma reference voltage generating unit generates a plurality of gamma reference voltages in response to a gamma control signal. The gamma signal supplying unit is integrated into a display panel and provides a gamma signal to data lines of the display panel using the gamma reference voltages.
Claims19
A source driver, comprising:
- a gamma reference voltage generating unit for generating a plurality of gamma reference voltages in response to a gamma control signal;
- and
- a gamma signal supplying unit providing a gamma signal to data lines of a display panel using the gamma reference voltages.
A display device, comprising:
- a display panel including a plurality of gate lines and a plurality of data lines;
- a gate driver for sequentially supplying a gate turn-on voltage to the plurality of gate lines;
- a source driver including a gamma reference voltage generating unit for generating a plurality of gamma reference voltages in response to a gamma control signal, and a gamma signal supplying unit integrated into the display panel and providing a gamma signal to the plurality of data lines using the gamma reference voltages;
- and
- a signal control unit for receiving pixel data and driving the gate driver and the source driver;
- and
- a driving voltage generating unit for supplying driving voltages to the gate driver and source driver.
A method for driving a display device, the display device displaying an image by sequentially supplying a gate turn-on voltage to a plurality of gate lines of a display panel and by supplying a gamma signal to a plurality of data lines, the method comprising:
- generating a gamma reference voltage based on a reference voltage and a gamma control signal;
- generating a gamma voltage using the gamma reference voltage;
- and
- supplying the gamma signal to the plurality of data lines using pixel data and the gamma voltage.
Dependencies are inferred from the claim text.