General voltage compensation circuit, compensation method and thin film transistor liquid crystal displayer

A liquid crystal display and thin film transistor technology, which is applied in the field of liquid crystal display, can solve problems such as the inability to effectively improve the color shift of the screen, and achieve the effect of improving the color shift problem

Inactive Publication Date: 2014-08-20
AU OPTRONICS CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In the prior art, for the coupling problem caused by the common voltage due to the changing grayscale signal on the data line, a solution is to design a common voltage compensation circuit, by adjusting the voltage waveform of the common voltage in the liquid cr

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  • General voltage compensation circuit, compensation method and thin film transistor liquid crystal displayer
  • General voltage compensation circuit, compensation method and thin film transistor liquid crystal displayer
  • General voltage compensation circuit, compensation method and thin film transistor liquid crystal displayer

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Embodiment Construction

[0034] In order to make the technical content disclosed in this application more detailed and complete, reference may be made to the drawings and the following various specific embodiments of the present invention, and the same symbols in the drawings represent the same or similar components. However, those skilled in the art should understand that the examples provided below are not intended to limit the scope of the present invention. In addition, the drawings are only for schematic illustration and are not drawn according to their original scale.

[0035] The specific implementation manners of various aspects of the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] Figure 1A A schematic diagram showing the driving architecture of a thin film transistor liquid crystal display. Figure 1B show Figure 1A The schematic diagram of the equivalent circuit in the dotted line part.

[0037] refer to Figure 1A , a t...

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Abstract

The invention provides a general voltage compensation circuit, a compensation method and a thin film transistor liquid crystal displayer. The compensation circuit comprises a reading unit, a signal processing module and an output unit, wherein the reading unit is used for reading a first general voltage signal in a liquid crystal panel, the signal processing module is electrically coupled with the reading unit and used for processing the first general voltage signal and obtaining a second general voltage signal, and the output unit is electrically coupled with the signal processing module and used for outputting the second general voltage signal to the liquid crystal panel. Compared with the prior art, general voltage waveforms in the panel are amplified in an inverting mode to generate compensation general voltage with the same amplitude and different polarity with the voltage waveforms, the compensation general voltage can generate different multiplying powers along with different images, and accordingly the color cast problem of all the images is solved.

Description

technical field [0001] The invention relates to liquid crystal display technology, in particular to a common voltage compensation circuit and a liquid crystal display including the common voltage compensation circuit. Background technique [0002] A conventional liquid crystal display includes an array substrate with a plurality of pixel electrodes, a color filter substrate with a common electrode, and a liquid crystal layer between the two substrates. When a voltage is applied to the pixel electrode and the common electrode, a potential difference is formed between the pixel electrode and the common electrode so that the molecules of the liquid crystal material change direction. The pixel electrodes are respectively arranged in the pixel array and connected with the thin film transistor elements. The thin film transistor element responds to a gate signal from a gate line, and selectively transmits a data voltage from a data line. [0003] In a liquid crystal display, a vo...

Claims

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Application Information

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IPC IPC(8): G02F1/133G09G3/36
Inventor 张盟昇
Owner AU OPTRONICS CORP
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