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Liquid crystal display device

A liquid crystal display and liquid crystal layer technology, applied in static indicators, instruments, nonlinear optics, etc., can solve the problems of difficult adjustment of variable resistors, difficult adjustment, damage to variable resistors, etc.

Inactive Publication Date: 2008-08-20
NEC LCD TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, problems also arise in this case
That is, in the structure, the variable resistance is located on the back of the liquid crystal display, so the variable resistance cannot be confirmed from the observation surface side, and therefore, adjustment of the variable resistance while observing the flickering display becomes difficult
In addition, due to the difficulty of adjustment, the operator who adjusts the variable resistor can easily damage the variable resistor through the variable resistor adjustment rod

Method used

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  • Liquid crystal display device
  • Liquid crystal display device
  • Liquid crystal display device

Examples

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Embodiment Construction

[0023] The present invention in its preferred embodiments relates to a liquid crystal display consisting of: a liquid crystal panel and a backlight unit. Wherein the liquid crystal panel is formed by an active matrix substrate, an opposite substrate, and a liquid crystal layer sandwiched between the substrates; the backlight unit is used to illuminate the liquid crystal panel. In this liquid crystal display, a variable resistor for adjusting flicker or a flexible board supporting the variable resistor for adjusting flicker is directly mounted on a circuit area provided around an active matrix substrate, At this circuit area, a drive circuit, a voltage generating circuit, and the like are provided. By directly mounting the variable resistor on the active matrix substrate, flicker adjustment operation while observing the display screen can be simplified, and the risk of the variable resistor being damaged can be reduced.

[0024] will refer to Figure 1A , 1B arrive image 3 ...

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Abstract

A liquid crystal display is constituted with a liquid crystal panel holding a liquid crystal layer with an active matrix substrate and a counter substrate, and a backlight unit for lighting the liquid crystal panel. A variable resistor for flickering adjustment is mounted in direct, or an FPC connecting and fixing. The variable resistor is mounted with the pressure-welding to a circuit region where a drive circuit and a voltage generating circuit are mounted in the periphery of the active matrix substrate.

Description

technical field [0001] The present invention relates to a liquid crystal display, and in particular to a structure around a substrate constituting a part of the liquid crystal display. Background technique [0002] With the development of technology in recent years, liquid crystal displays for large-screen notebook personal computers have been put into practical use. The liquid crystal layer of such a liquid crystal display is generally driven by alternating current (AC), and data display is realized by applying positive and negative voltages to pixel electrodes and a common voltage to an opposite electrode opposite to the pixel electrodes in every constant period. [0003] Here, ideally, the voltage applied to the liquid crystal layer is symmetrical with respect to positive and negative voltage waveforms. However, ideal voltages cannot be applied due to common voltage deviations and impurities in each liquid crystal cell, and therefore, voltages with different effects are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/136G02F1/133
CPCG09G2320/0247G02F1/13452G09G3/36G09G2320/0606G02F1/1345
Inventor 三轮知生
Owner NEC LCD TECH CORP