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Liquid crystal display device

A technology of liquid crystal display device and liquid crystal layer, which can be used in instruments, nonlinear optics, optics, etc., and can solve problems such as display dimming.

Active Publication Date: 2020-12-08
JAPAN DISPLAY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the center of the slit and the positions on the electrodes between the slits form regions where orientation changes of liquid crystal molecules hardly occur, there is a possibility that the display may become dark.

Method used

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  • Liquid crystal display device
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  • Liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0023] figure 1 It is a block diagram of the liquid crystal display device 100 according to the first embodiment. In the following description, the positional relationship and the like of each component will be described using an XYZ coordinate system.

[0024] The liquid crystal display device 100 has a liquid crystal panel 110 and a driver IC 120 . The liquid crystal panel 110 has a first substrate 130 and a second substrate 150 oppositely disposed with a liquid crystal layer interposed therebetween. The first substrate 130 is formed larger than the second substrate 150 , and a portion of the first substrate 130 protruding outside the second substrate 150 is a terminal portion. The driver IC 120 is provided on the terminal portion.

[0025] A display region 110A is provided at the center of the opposing region where the first substrate 130 and the second substrate 150 face each other. In the display region 110A, a plurality of gate lines 113 extending in the X direction ...

no. 2 approach

[0068] Figure 9 It is a plan view showing the electrode structure of the liquid crystal display device according to the second embodiment. In the present embodiment, the same reference numerals are attached to the same components as those in the first embodiment, and detailed description thereof will be omitted.

[0069] In this embodiment, the difference from the first embodiment is that the first connecting portion 143 a connects the ends of two adjacent strip-shaped portions 142 to each other. Strip 142 does not have Image 6 The first extension 142b1 is shown. In this configuration, the second linear region DL2 and the third linear region DL3 are not formed on the +X side (the side opposite to the center line side of the sub-pixel) of the first connection portion 143 a. For this reason, a brighter display can be realized although the response speed is lower than that of the first embodiment.

no. 3 approach

[0071] Figure 10 It is a plan view showing the electrode structure of the liquid crystal display device according to the third embodiment. In the present embodiment, the same reference numerals are attached to components common to those in the second embodiment, and detailed description thereof will be omitted.

[0072] This embodiment differs from the second embodiment in that the plurality of second connection portions 143b includes a plurality of second connection portions 143b whose positions in the X direction are different from each other. The plurality of second connection portions 143b are not arranged linearly along the Y direction. In this configuration, the brightness and response speed of the display can be fine-tuned by shifting the positions of the plurality of second connecting portions 143b arranged in the Y direction in the X direction.

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Abstract

A liquid crystal display device according to an aspect of the present invention includes a first substrate including a pixel electrode and a common electrode, a second substrate opposed to the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The pixel or common electrode includes, in a single subpixel, belt-like portions arranged in a first direction, and coupling portions coupling the adjacent belt-like portions. Each belt-like portion continuously extends from one side to an other side of a central line of the subpixel, that is parallel with the first direction. The coupling portions include one or more first coupling portions provided on the one side of the central line, and one or more second coupling portions provided on the other side of the central line.

Description

technical field [0001] The present invention relates to a liquid crystal display device. Background technique [0002] A liquid crystal display device described in Patent Document 1 is known as a lateral electric field type liquid crystal display device in which pixel electrodes and a common electrode are provided on the same substrate. The liquid crystal display device of Patent Document 1 is a liquid crystal display device in which a plurality of slits are formed on a common electrode, and the common electrode is arranged on the liquid crystal layer side relative to the pixel electrodes. [0003] prior art literature [0004] patent documents [0005] Patent Document 1: Japanese Patent Laid-Open No. 2014-209212 [0006] In the liquid crystal display device of Patent Document 1, adjacent slits communicate with each other through the communicating portion. For this reason, when a voltage is applied between the pixel electrode and the common electrode, the liquid crystal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1343
CPCG02F1/134309G02F2201/121G02F2201/123G02F1/133707G02F1/134372G02F1/133345G02F1/1337G02F1/133742G02F1/134345
Inventor 松岛寿治铃木大地
Owner JAPAN DISPLAY INC