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Liquid crystal display element and liquid crystal display device

A technology for liquid crystal display elements and signal lines, which is used in instruments, nonlinear optics, optics, etc. to improve display quality and suppress orientation deviation.

Inactive Publication Date: 2014-12-24
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
  • Liquid crystal display element and liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0067] (Outline of liquid crystal display element 10)

[0068] while referring to figure 1 with 2 , the liquid crystal display element 10 according to one embodiment of the present invention will be described. figure 1 (a) is a top view showing the outline of the liquid crystal display element 10, figure 1 (b) is to show figure 1 (a) A schematic cross-sectional view of a cross-section along line A-A. figure 2 (a) is to figure 1 Partially enlarged figure of (b), figure 2 (b) is with figure 1 (a) An enlarged view of a cross-section of a line on line A-A parallel to the scan line 20 . figure 2 (c) is with figure 2 (a) likewise will figure 1 The partially enlarged view of (b) shows the state where the backlight 29 is incident on the liquid crystal layer 13 .

[0069] The liquid crystal display element 10 is a VA mode liquid crystal display element which is one type of vertical electric field type liquid crystal display element, and uses dot inversion driving a...

Embodiment approach 2

[0135] (liquid crystal display element 50)

[0136] while referring to image 3 , 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 differs 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 code|symbol is attached|subjected to the same member as the member with which the liquid crystal display element 10 is equipped, and the description is abbreviate|omitted.

[0137] (common electrode 51)

[0138] The liquid crystal display element 50 is a VA mode liquid crystal display element similarly to the liquid crystal display element 10 . However, the liquid crystal display element 10 is driven by dot inversion driving, and the liquid crystal d...

Embodiment approach 3

[0150] while referring to Figure 4 , a liquid crystal display element 60 as another embodiment of the present invention will be described. The common electrode 61 included in the liquid crystal display element 60 has a different opening shape than the common electrode 51 included in the liquid crystal display element 50 . The shape of the common electrode 51 is a rectangle. Therefore, when the length of the common electrode 51 in the direction parallel to the signal line is defined as the width, the width is always constant.

[0151] 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 larger than the width of the common electrode 61 in the area other than this area.

[0152] Thus, the common electrode 61 can cover a relatively large area in the area where the signal line 19 is provided. Therefore,...

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Abstract

[Solution] A liquid crystal display element (110) is provided with a common electrode (140) that covers a position that faces either or both of at least part of a scanning line (120) and at least part of a signal line (119), has an opening part (141) positioned so as to face a pixel electrode (130), and has a cutout part (142) positioned in a pixel boundary region (146) so as to at least not face the pixel electrode (130).

Description

technical field [0001] The present invention relates to a liquid crystal display element and a liquid crystal display device, in particular, to a vertical electric field type liquid crystal display element and a liquid crystal display device represented by TN mode and VA mode. Background technique [0002] Currently, liquid crystal display devices are used in many devices. Such examples include televisions, mobile phones, and the like. The liquid crystal display device is a display device including a liquid crystal display element, and the liquid crystal display element controls the orientation of liquid crystal by controlling the electric field generated between electrodes, thereby controlling the transmittance of light. In liquid crystal display elements, there are various methods of controlling the alignment of liquid crystals. When these systems are classified from the viewpoint of the direction in which the electric field is generated, they can be roughly classified i...

Claims

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Application Information

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Patent Type & Authority Applications(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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