Drive Unit for Display Device
AssigneeLG Display Co., Ltd.
InventorJeongho KANG
Life of this patent
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Abstract
The present disclosure relates to a driver for a display device. A driver for a display device according to an embodiment is characterized in generating a voltage supplied as a bias voltage of a source buffer of a data driver in conjunction with a voltage supplied to a display panel. Therefore, the driver for the display device according to the present disclosure has an advantage that the headroom margin of the source buffer can be secured and power consumption of the driver is low at the same time, even when an image data pattern causing a variation in the voltage is input to the display device.
Claims13
A driver for a display device, the driver comprising:
- a data driver including a source buffer that outputs a data voltage to a data line of a display panel of the display device;
- and
- a power supply unit supplying a first voltage to a power line of the display panel and a second voltage to the data driver, wherein the power supply unit includes:
- a first voltage generator generating the first voltage;
- and
- a second voltage generator generating the second voltage based on the first voltage, in which the second voltage is supplied as a bias voltage of the source buffer.
A driver for a display panel, the driver comprising:
- a data driver including a source buffer that outputs a data voltage to a data line of a display panel of the display device;
- and
- a power supply unit supplying a first voltage to a power line of the display panel and supplying a voltage selected from a second voltage and a third voltage to the data driver,
- wherein the power supply unit includes:
- a first voltage generator generating the first voltage and the second voltage;
- and
- a second voltage generator generating the third voltage based on the first voltage, in which the voltage selected from the second voltage and the third voltage is supplied as a bias voltage of the source buffer.
Dependencies are inferred from the claim text.