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Liquid crystal display element and liquid crystal display device

A technology of liquid crystal display elements and signal lines, applied in the direction of instruments, nonlinear optics, optics, etc., to achieve the effect of improving display quality and suppressing orientation deviation

Inactive Publication Date: 2016-11-23
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is different from vertical electric field type liquid crystal display elements in that one of a pair of transparent substrates has a pixel electrode and a common electrode.

Method used

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  • Liquid crystal display element and liquid crystal display device
  • Liquid crystal display element and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0069] (Overview of liquid crystal display element 10)

[0070] Side reference figure 1 with 2 Next, the liquid crystal display element 10 according to one embodiment of the present invention will be described. figure 1 (a) is a plan view showing the outline of the liquid crystal display element 10, figure 1 (b) shows figure 1 (a) A cross-sectional view of the outline of the cross section of the line A-A shown. figure 2 (a) is to figure 1 (b) part of the enlarged diagram, figure 2 (b) is the same as figure 1 (a) An enlarged view of the cross section of the line on the scanning line 20 parallel to the line A-A. figure 2 (c) is the same as figure 2 (a) In the same way figure 1 The partially enlarged view of (b) shows a state where the backlight 29 is incident on the liquid crystal layer 13.

[0071] The liquid crystal display element 10 is a VA mode liquid crystal display element which is a type of longitudinal electric field type liquid crystal display element, and uses dot...

Embodiment approach 2

[0137] (Liquid crystal display element 50)

[0138] Side reference image 3 Next, a liquid crystal display element 50 as another embodiment of the present invention will be described. image 3 It is a plan view showing the outline of the liquid crystal display element 50. The liquid crystal display element 50 is different from the liquid crystal display element 10 in the shapes of the common electrode 51 and the TFT 53. Therefore, in this embodiment, the common electrode 51 and the TFT 53 will be described. In addition, the same components as those included in the liquid crystal display element 10 are denoted by the same reference numerals, and the description thereof will be omitted.

[0139] (Common electrode 51)

[0140] The liquid crystal display element 50 is a VA mode liquid crystal display element like the liquid crystal display element 10. However, the liquid crystal display element 10 is driven by dot inversion driving, and the liquid crystal display element 50 is driven ...

Embodiment approach 3

[0152] Side reference Figure 4 A description will be given of a liquid crystal display element 60 as another embodiment of the present invention. The common electrode 61 included in the liquid crystal display element 60 differs from the common electrode 51 included in the liquid crystal display element 50 in the shape of the opening. The shape of the common electrode 51 is rectangular. Therefore, when the length of the common electrode 51 in the direction parallel to the signal line is taken as the width, the width is always constant.

[0153] On the other hand, the width of the common electrode 61 is not constant. The width of the common electrode 61 in the area where the signal line 19 is provided and the peripheral area where the signal line 19 is provided is formed to be larger than the width of the common electrode 61 in the area other than the area.

[0154] Thereby, the common electrode 61 can cover a larger area in the area where the signal line 19 is provided. Therefor...

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Abstract

The liquid crystal display element (110) is provided with a common electrode (140), and the common electrode (140) covers a position facing at least one of at least a part of the scanning line (120) and at least a part of the signal line (119), and is opposite to the pixel electrode ( An opening (141) is provided at a position facing 130), and a notch (142) is provided at least at a position not facing the pixel electrode (130) in the pixel boundary region (146).

Description

Technical field [0001] The present invention relates to a liquid crystal display element and a liquid crystal display device, and in particular, to a longitudinal electric field type liquid crystal display element and a liquid crystal display device represented by TN mode and VA mode. Background technique [0002] Nowadays, liquid crystal display devices are used in many devices. As such an example, a television, a mobile phone, etc. can be cited. The liquid crystal display device is a display device provided with a liquid crystal display element, and the liquid crystal display element controls the orientation of the liquid crystal by controlling the electric field generated between the electrodes, thereby controlling the light transmittance. In the liquid crystal display element, there are various ways to control the orientation of liquid crystal. If these methods are classified from the viewpoint of the direction in which the electric field is generated, they can be roughly c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1368G02F1/1337
CPCG02F1/134363G02F1/133345G02F1/13606G02F1/134372G02F1/136218G02F1/134309G02F1/136213
Inventor 川岛由纪守屋由瑞田坂泰俊阿砂利典孝
Owner SHARP KK
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