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Vertical-alignment liquid crystal display element

A liquid crystal display element, column direction technology, applied in the direction of transistors, static indicators, optics, etc., can solve the problems of scattered, inability to display uniformity of pixels, etc.

Active Publication Date: 2009-07-08
ORTUS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the conventional vertical alignment type active matrix liquid crystal display element has a problem that the tilted alignment state of liquid crystal molecules is disturbed by the voltage applied to the electrode of each pixel, and the display state of each pixel cannot be made uniform.

Method used

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Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0064] Figure 1 to Figure 5 Representing the first embodiment of the present invention, figure 1 is a plan view of one pixel portion of one substrate of a liquid crystal display element, figure 2 and image 3 is along figure 1 The cross-sectional view of the liquid crystal display element of the line II-II and line III-III.

[0065] The liquid crystal display element is a vertical alignment type active matrix liquid crystal display element with TFT as an active component, such as Figure 1 ~ Figure 3 As shown, it is composed of the following components: a pair of transparent substrates 1, 2 are arranged facing each other at a predetermined interval; a plurality of transparent pixel electrodes 3 are provided on the inner surfaces of the pair of substrates 1, 2 facing each other. The inner surface of one of the substrates 1 is arranged in a matrix in the row direction and the column direction; a plurality of TFTs 4 are arranged in the vicinity of the plurality of pixel ele...

no. 2 Embodiment

[0102] Figure 6 Shows the second embodiment of the present invention. Should Figure 6 It is a plan view of one pixel portion of one substrate (TFT substrate) of a liquid crystal display element.

[0103] Compared with the above-mentioned first embodiment, the liquid crystal display element of this second embodiment is different in the shape of the auxiliary electrode formed on the TFT substrate, and other structures are the same as the liquid crystal display element of the first embodiment, so the same components are given the same The description of the label is omitted.

[0104]That is, the auxiliary electrode 14 is composed of a frame-shaped conductive film surrounding the entire periphery of the pixel electrode 3 formed on the substrate surface of the above-mentioned TFT substrate 1, and the frame-shaped conductive film is made of a metal mold as in the first embodiment. , or a transparent conductive film, or a composite film of a metal mold and a transparent conducti...

no. 3 Embodiment

[0109] Figure 7 A third embodiment of the present invention is shown. Should Figure 7 It is a plan view of one pixel portion of one substrate (TFT substrate) of a liquid crystal display element.

[0110] Compared with the above-mentioned first embodiment, the liquid crystal display element of this third embodiment is different in the shape of the auxiliary electrode formed on the TFT substrate, and other structures are the same as the liquid crystal display element of the first embodiment, so the same components are given the same The description of the label is omitted.

[0111] That is, the auxiliary electrode 14 is composed of a frame-shaped conductive film formed on the substrate surface of the above-mentioned TFT substrate 1 to surround the entire circumference of the pixel electrode 3 as in the above-mentioned first embodiment, and each side of the auxiliary electrode 14 is formed. The edge on the inner peripheral side faces the peripheral edge of the pixel electrod...

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Abstract

The present invention provides a vertical alignment type liquid crystal display element, which has: a plurality of pixel electrodes; thin film transistors (TFTs) respectively corresponding to these pixels; A signal line and a data signal line for supplying a data signal to the drain electrode of the above-mentioned TFT; an opposite substrate is formed with an opposite electrode opposite to the above-mentioned pixel electrode; a vertical alignment film covers the surface of each substrate on which the electrode is formed; the liquid crystal layer , sealed between these substrates, the dielectric constant is negative. Auxiliary electrodes are provided on the inner surface of the above-mentioned one substrate, and the auxiliary electrodes respectively correspond to at least the parts close to the TFT (4) around the plurality of pixel electrodes, and are used to communicate with the inner surface of the other substrate. An electric field of a predetermined value is formed between the electrodes.

Description

technical field [0001] The present invention relates to a vertical alignment type active matrix liquid crystal display element with a thin film transistor (hereinafter referred to as TFT) as an active component. Background technique [0002] The vertical alignment type liquid crystal display element is composed of: a pair of substrates, which are arranged opposite to each other at a preset interval; The area forms a plurality of pixels arranged in a matrix; the vertical alignment film is arranged on the inner surfaces of the above-mentioned pair of substrates, respectively covering the above-mentioned electrodes; the liquid crystal layer is sealed in the gap between the above-mentioned pair of substrates, and has a negative dielectric anisotropy. [0003] In this vertical alignment type liquid crystal display element, for each of a plurality of pixels constituted by a region in which a plurality of pixel electrodes and a counter electrode face each other, by applying a volt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/136G02F1/1339G02F1/133H01L29/786
CPCG02F1/1343G02F1/1393G02F1/1337
Inventor 水迫亮太山口稔
Owner ORTUS TECH