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Display capable of actively regulating drive voltage, voltage compensation circuit and driving method

A driving voltage and active adjustment technology, applied in static indicators, logic circuit connection/interface layout, instruments, etc., can solve the problems of prolonging the use time and increasing panel power consumption, so as to increase power consumption and improve service life Effect

Active Publication Date: 2011-06-08
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, increasing the positive gate voltage V gh Although it can prolong the use time, it also increases the power consumption of the panel

Method used

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  • Display capable of actively regulating drive voltage, voltage compensation circuit and driving method
  • Display capable of actively regulating drive voltage, voltage compensation circuit and driving method
  • Display capable of actively regulating drive voltage, voltage compensation circuit and driving method

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Embodiment Construction

[0032] please refer again image 3 , comparing the total power dissipation P under the same bias conditions _sum , that is, comparing condition 1 and condition 3 or comparing condition 2 and condition 4, we can know the total power consumption P _sum and the biasing time T _stress Inversely proportional. When T _stress After exceeding a certain value (for example, 500 hours), under the same bias conditions, the total power consumption P _sumAbout half of the unstress (for example, from 115mV to 46.2mV or from 202.9mV to 111.7mV). The present invention utilizes this panel characteristic, at the beginning with a lower positive gate voltage V gh To drive the panel to save power consumption; when the use time exceeds a predetermined value, then use a higher positive gate voltage V gh To drive the panel to increase the service life of the panel without greatly increasing power consumption.

[0033] Due to the feed-through effect (feed-through), the common voltage of the disp...

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PUM

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Abstract

The invention provides a display capable of actively regulating drive voltage, a voltage compensation circuit and a driving method. The display comprises a display panel, a gate drive circuit and a voltage selector. The display panel starts pixels and displays an image according to a plurality of groups of gate output voltages and a common voltage. The gate drive circuit provides the gate output voltages according to a gate input signal. The voltage selector provides a plurality of dissimilar positive gate voltages and a plurality of dissimilar common voltages, outputs a corresponding positive gate voltage from the positive gate voltages and outputs a corresponding common voltage from the dissimilar common voltages according to the relationship between a reference voltage and an nth gradegate output voltage. Therefore, the drive voltage can be actively regulated.

Description

technical field [0001] The invention relates to a display, a voltage compensation circuit and a driving method, in particular to a display capable of actively adjusting a driving voltage, a voltage compensation circuit and a driving method. Background technique [0002] Due to the advantages of low radiation, small size and low energy consumption, liquid crystal displays have gradually replaced traditional cathode ray tube displays, and are therefore widely used in notebook computers, personal digital assistants ( personal digital assistant, PDA), flat-screen TV, or information products such as mobile phones. The traditional method of liquid crystal display is to use an external driver chip to drive the pixels on the panel to display images, but in order to reduce the number of components and reduce manufacturing costs, it has gradually developed in recent years to directly fabricate the driving circuit structure on the display panel, such as gate A technology in which a ga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36H03K19/0175
Inventor 李国贤郑国兴谢曜任陈耿铭
Owner AU OPTRONICS CORP