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Control method and control device for display panel

A technology of a control device and a control method, which is applied to static indicators, instruments, etc., can solve problems such as large power consumption, and achieve the effect of reducing power consumption and reducing power consumption

Active Publication Date: 2012-05-02
ORISE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the overall average current value will increase, which corresponds to a larger power consumption

Method used

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  • Control method and control device for display panel
  • Control method and control device for display panel
  • Control method and control device for display panel

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Embodiment Construction

[0046] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0047] In order to prevent the data lines from consuming too much power during the polarity switching process, the control circuit used with the flat panel display usually provides a charge sharing function.

[0048] The following combination Figure 2A to Figure 2E A method of charge sharing is described. For the convenience of description, the arrangement of data lines and voltage driving units in the following figures are the same as those of Figure 1A to Figure 1E The drawings are similar.

[0049] That is, on the left side of the figure from top to bottom are: the first voltage driving unit 211 , the second voltage driving unit 212 , the third voltage driving unit 213 , and the fourth voltage driving unit 214 . On the right side of the drawing fro...

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Abstract

The invention discloses a control method for a display panel. The control method comprises the following steps of: conducting a first switch group so that a first voltage drive unit provides a first positive drive voltage to a first data line and a second voltage drive unit provides a first negative drive voltage to a second data line; conducting a second switch group so that a first charge storage unit has a positive-polarity common voltage and a second charge storage unit has a negative-polarity common voltage; conducting a third switch group so that the first data line and the second data line are grounded; and after the polarity conversion, charging the second data line according to a first voltage comparison result, and charging the first data line according to a second voltage comparison result.

Description

technical field [0001] The present invention relates to a control device and a control method applied to a display panel, in particular to a control device and a control method for selectively charging and discharging a data line according to a voltage comparison result. Background technique [0002] Flat panel displays (eg, liquid crystal displays) are widely used in various consumer electronic products. When the flat panel displays are used in portable devices, how to reduce power consumption is a very important issue. [0003] The working principle of the liquid crystal display is to change the deflection of the liquid crystal molecules through the change of the electric field, and then affect the polarity of the light to correspond to the content of the display screen. It can be seen that, when a flat panel display is used to display images, the image images on the panel must be displayed through the polarity switching operation of the data lines or pixel units. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
Inventor 郑彦诚黄健群陈冠翰
Owner ORISE TECH CO LTD
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