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Vertical alignment LCD (liquid crystal display) and driving method thereof

A liquid crystal display, vertical alignment technology, applied in its drive field, can solve problems such as image sticking, and achieve the effect of improving image sticking

Inactive Publication Date: 2012-07-04
INNOLUX CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In the present invention, the problem of image sticking can be improved by only using different positive voltages respectively applied to the common line of the array substrate and the voltage of the common electrode layer of the color filter substrate without greatly changing the existing materials and designs.

Method used

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  • Vertical alignment LCD (liquid crystal display) and driving method thereof
  • Vertical alignment LCD (liquid crystal display) and driving method thereof
  • Vertical alignment LCD (liquid crystal display) and driving method thereof

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Embodiment Construction

[0014] Such as figure 1 As shown, it is a partial top view of the array substrate 100 according to an embodiment of the present invention. The array substrate 100 includes a gate line 10 connected to the gate of the thin film transistor, a data line 12 connected to the source of the thin film transistor, and a common line 14 serving as the bottom electrode of the storage capacitor 16 . The gate line 10 and the data line 12 vertically intersect to define a pixel area 18 . The above-mentioned array substrate 100 can be matched with a color filter substrate (not shown), and a liquid crystal layer (not shown) is interposed therebetween to form a vertical alignment liquid crystal display. The above-mentioned liquid crystal layer can be a common nematic liquid crystal material to meet the requirement of vertical alignment. In an embodiment of the present invention, the threshold voltage of the liquid crystal layer may be between 100 mV and 1500 mV, depending on the circuit layout ...

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Abstract

The invention provides a vertical alignment LCD (liquid crystal display) and a driving method thereof, wherein the vertical alignment LCD is provided with an array substrate, a counter substrate and a liquid crystal layer sandwiched between the array substrate and the counter substrate; the array substrate is provided with a common lead wire; the counter substrate is provided with a common electrode layer; and the liquid crystal layer has a critical voltage. A larger positive voltage is applied to the common lead wire of the array substrate, and a smaller positive voltage is applied to the common electrode layer to the counter substrate, thus impurities with negative electricity are absorbed on the common lead wire, and the image residue problem is improved.

Description

technical field [0001] The present invention relates to liquid crystal displays, and more particularly to methods of driving them. Background technique [0002] Currently, two common liquid crystal driving modes include a twisted nematic (TN) mode and a vertically-aligned (VA) mode. [0003] When using the TN mode to drive the liquid crystal, the liquid crystal of the liquid crystal display will not rotate without any electric field, so that the light source of the backlight module will pass through the liquid crystal and the polarizer, which will cause the display to appear completely white. Call it "Normally White". Although the technology related to TN liquid crystal displays has been significantly improved in recent years, and the contrast and color saturation provided by TN liquid crystal displays are also superior to traditional displays (eg: CRT displays). However, the TN liquid crystal display has a key disadvantage, that is, the viewing angle range of the TN liqui...

Claims

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Application Information

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IPC IPC(8): G02F1/133G02F1/1335
Inventor 宋立伟王忠益汪安昌谢耀联
Owner INNOLUX CORP
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