Automatic voltage regulator for common electrode in panel

一种公共电极、电压调整的技术，应用在自动化面板公共电极电压调整装置领域，能够解决影响产品最佳化调校、无法普及各个角落等问题，达到避免误差、产品质量整齐均一、解决手动调校不易的效果

Inactive Publication Date: 2004-09-08
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, during the calibration process of large-size panels, the field of view can only cover part of the panel area, and cannot be spread to all corners; also because the field of view is limited, it is often neglected during calibration, which affects the best product. The results of the adjustment

Method used

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Examples

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Embodiment Construction

[0024] In order to make the above-mentioned purpose, features, and advantages of the present invention more comprehensible, a preferred embodiment is specifically cited below, and is described in detail with reference to the accompanying drawings.

[0025] The idea of ​​the present invention is to use the photo-sensing device to sense the light emitted by the panel. Since the photo-sensing device can generate a corresponding light signal after being irradiated by the light, it can convert the light signal into an electrical signal. As the basis for adjusting the common voltage of the panel, the result of adjusting the common voltage of the panel is consistent. Please refer to figure 2 , which shows a schematic diagram of a panel brightness adjustment device according to a preferred embodiment of the present invention, wherein the panel 110 is, for example, a liquid crystal display panel. The photo-sensing device 210 can be arranged (with a slight distance between the device ...

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PUM

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Abstract

The automatic voltage regulator for common electrode in panel includes photosensitive unit, photoelectronic conversion IC, RAM and voltage regulating circuit. The photosensitive unit is provided with several photo diodes to receive the light from the panel and generate corresponding light signal set. The photoelectronic conversion IC is used to process the light signal set and the obtained electric signals are written into RAM for the voltage regulation of the common electrode. Through subsequent operation, the regulating signal produced is fed to the voltage regulating circuit to reach the optimal effect of regulating the voltage of the common electrode automatically.

Description

technical field [0001] The invention relates to a voltage adjusting device, and in particular to an automatic panel common electrode voltage adjusting device. Background technique [0002] In recent years, the manufacturing technology of liquid crystal display (LCD) panels has advanced by leaps and bounds, but in just a few years, it has entered the scale of 5th generation factories from 3.5th generation and 4th generation factories. At present, the panel technology has gradually matured, and the size is getting bigger and thinner. However, with the improvement of technology, there are many problems that need to be overcome. Optimization adjustment is also one of the important issues to be solved. [0003] Please refer to figure 1 , which is a schematic diagram of conventionally adjusting the voltage of the common electrode of the panel manually, wherein the panel 110 is, for example, a liquid crystal display panel. As shown in the figure, the panel 110 is placed on the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G5/00G09G5/10G09G5/12
Inventor 施鸿民
Owner AU OPTRONICS CORP
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