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Amplifier integrating source driver

A source driver and source driver technology, applied to instruments, static indicators, etc., can solve the problems of cost increase and achieve the effect of reducing power consumption and cost

Active Publication Date: 2014-03-26
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the source driver 110 requires an additional half-voltage source, so the cost of having the source driver 110 also increases

Method used

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  • Amplifier integrating source driver
  • Amplifier integrating source driver
  • Amplifier integrating source driver

Examples

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Embodiment Construction

[0091] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0092] Please refer to figure 2 , figure 2 A schematic diagram illustrating an integrated amplifier source driver 200 according to an embodiment of the present invention. The source driver 200 includes a plurality of source driver units S1 -Sn and a voltage source generating circuit 202 . Each of the multiple source drive units S1-Sn has multiple amplifiers for driving corresponding data lines on the liquid crystal panel 204; the voltage source generation circuit 202 is used to generate multiple source drive units S1 -The first voltage V1 required by the amplifier in the Sn, the voltage source generating circuit 202 includes a first amplifier 2022, a first voltage divider circuit 2024, a first push-pull amplifier 2026 and a first capacitor 2028, wherein the first amplifier 2022 is integrat...

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Abstract

The invention relates to a source driver, which comprises at least one source drive unit and a voltage source generation circuit, wherein the voltage source generation circuit is used for generating a first voltage required by the at least one source drive unit, and comprises a first amplifier which is integrated into one of the at least one source drive unit; and the first voltage is supplied to the at least one source drive unit. The source driver of the invention can reduce power consumption; in addition, a source driver integrated amplifier can reduce the design complexity of a power supply on a printed circuit board and reduce components so as to reduce the cost.

Description

technical field [0001] The present invention relates to a source driver, in particular to a source driver integrating an amplifier. Background technique [0002] The frame rate, size, resolution, and output load of the source driver of the LCD panel are rapidly increasing along with the development of the LCD panel, making the temperature and power consumption of the source driver become important issues in the design of the LCD panel. [0003] Please refer to Figure 1A and Figure 1B , Figure 1A A schematic diagram illustrating the source driver 100 in the prior art, Figure 1B A schematic diagram illustrating a source driver 110 with an additional half voltage source for prior art. Such as Figure 1A as shown, Figure 1A The voltage across the amplifier 102 and the amplifier 104 of the source driver 100 is the high voltage AVDD minus the low voltage AGND, wherein the amplifier 102 is used to drive the odd data line and is called a positive output stage amplifier, and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G09G3/36
Inventor 林勇旭钟竣帆何宇玺
Owner AU OPTRONICS CORP
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