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Voltage level regulation circuit, method and display device

A voltage level and circuit adjustment technology, applied to static indicators, instruments, etc., can solve problems such as common voltage drift and increase common voltage power consumption

Active Publication Date: 2009-03-11
CHINA STAR OPTOELECTRONICS INT HK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But on the contrary, using this method will greatly increase the power consumption of the common voltage, and it is easy to cause the drift of the voltage level of the common voltage

Method used

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  • Voltage level regulation circuit, method and display device
  • Voltage level regulation circuit, method and display device
  • Voltage level regulation circuit, method and display device

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Embodiment Construction

[0029] As shown in FIG. 1 , the first embodiment of the present invention is a display device 1 including a pixel array 11 , a voltage level adjustment circuit 13 , and peripheral circuits 15 , 17 . The pixel array 11 includes a plurality of scanning lines (indicated by 111 , 112 , 113 here for convenience of illustration) and a plurality of data lines (indicated by 114 , 115 , 116 in the figure for convenience of illustration). The voltage level adjustment circuit 13 includes a reference voltage circuit 131 , a plurality of first switches 133 and a capacitor 135 . The reference voltage circuit 131 is used to generate a reference voltage 130 . The first switches 133 are respectively electrically connected to the data lines 114 , 115 , 116 and the capacitor 135 . The peripheral circuit 15 provides driving voltages for the scan lines 111 , 112 , 113 . The peripheral circuit 17 provides the driving voltage of the data lines 114, 115, 116, and the voltage level adjustment circui...

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Abstract

The invention is a voltage level adjustment circuit, a method, and a display device. The display device at least includes a data line and a voltage level adjustment circuit. The voltage level adjustment circuit includes a capacitance and a switch. The capacitance receives a reference voltage for charging the capacitance to a voltage level. A switch is connected with the data line and capacitance electrically. A voltage of the data line is adjusted through the turn-on of the switch and the voltage level adjustment of the capacitance.

Description

technical field [0001] The invention relates to a display device and a voltage level adjustment circuit and method for adjusting the voltage level of the display device. Background technique [0002] In recent years, flat panel displays have developed more and more rapidly, and have gradually replaced traditional cathode ray tube displays. Today's flat panel displays mainly include the following types: Organic Light-Emitting Diodes Display (OLED), Plasma Display Panel (PDP), Liquid Crystal Display (LCD), and Field Emission Display ( Field Emission Display; FED) and so on. Among them, liquid crystal displays have become the mainstream of today's consumer displays due to their low power consumption, thinness, and high resolution. [0003] A general liquid crystal display is mainly composed of a pixel array and a driving circuit. Each pixel in the pixel array is mainly composed of a pixel switch and a liquid crystal capacitor, and the driving circuit is used to control each p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
Inventor 陈忠君
Owner CHINA STAR OPTOELECTRONICS INT HK