Liquid crystal display device and driving method thereof

A technology of a liquid crystal display device and a driving method, which is applied in the directions of static indicators, nonlinear optics, instruments, etc., can solve the problems that the transmittance of the display device has a large influence, and achieve the effect of improving the gray scale inversion problem.

Pending Publication Date: 2019-07-19
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A liquid crystal display device uses black insertion technology to reduce the degree of gray scale inversion, but it has a great impact on the transmittance of the liquid crystal display device

Method used

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  • Liquid crystal display device and driving method thereof
  • Liquid crystal display device and driving method thereof
  • Liquid crystal display device and driving method thereof

Examples

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no. 1 example

[0027] Such as figure 1 and figure 2 As shown, the liquid crystal display device of the first embodiment of the present invention includes a first substrate 10, a second substrate 30 opposite to the first substrate 10, and a liquid crystal layer between the first substrate 10 and the second substrate 30. 50. The first substrate 10 includes a first substrate 11, a color resist layer 12, a first protective layer 13, a viewing angle control electrode 14 and a second protective layer 16, and the color resist layer 12, the first protective layer 13, a viewing angle control electrode 14 and a second protective layer 16. The protective layers 16 are sequentially stacked on the first substrate 11 , and the second protective layer 16 is located on a side close to the liquid crystal layer 50 . The second substrate 30 includes a second base 31, a data line 32, a first insulating layer 34, a common electrode 36, a second insulating layer 37, and a pixel electrode 38. The data line 32 i...

no. 2 example

[0045] Such as Figure 7 As shown, the liquid crystal display device of the second embodiment of the present invention is basically similar to the liquid crystal display device of the first embodiment, the difference is that the first region P1 and the second region P2 of the liquid crystal display device of the second embodiment are along the The direction parallel to the scanning line 39 extends, that is, the first region P1 and the second region P2 extend along the vertical direction. Specifically, the first inclination area 52 includes a plurality of first portions, the second inclination area 54 includes a plurality of second portions, the plurality of first portions and the plurality of second portions are alternately arranged along the data line direction, and each first portion corresponds to The first area covers all the pixel units in the same row, and each second part corresponds to the second area covering all the pixel units in the same row. Other structures of t...

no. 3 example

[0048] Such as Figure 8 As shown, the liquid crystal display device of the third embodiment of the present invention is basically similar to the liquid crystal display device of the first embodiment, the difference is that each pixel unit P of the liquid crystal display device of the third embodiment includes a first region P1, a second The second area P2 and the third area P3, the liquid crystal layer 50 includes a first inclination area 52 corresponding to cover the first area P1, a second inclination area 54 corresponding to covering the second area P2 and a third inclination area corresponding to covering the third area P3 56, the liquid crystal layer 50 in the first tilt region 52 has a first pretilt angle, the liquid crystal layer 50 in the second tilt region 54 has a second pretilt angle, and the liquid crystal layer 50 in the third tilt region 56 has a third pretilt angle , the first pre-tilt angle, the second pre-tilt angle and the third pre-tilt angle are not equal ...

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Abstract

The invention discloses a liquid crystal display device and a driving method thereof. The liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer; thefirst substrate includes a viewing angle control electrode; each pixel unit includes a first area and a second area; the liquid crystal layer includes a first tilt area correspondingly covering the first area and a second tilt area correspondingly covering the second area; the liquid crystal layer distribution of the first and second tilt areas has first and second pre-tilt angles, and the first pre-tilt angle and the second pre-tilt angle are not equal; and the viewing angle control electrode correspondingly covering all pixel units. In the liquid crystal display device and the driving methodthereof, the liquid crystal layer is divided into the first tilt area and the second tilt area with different pre-tilt angles, so that liquid crystal molecules in one pixel have different pre-tilt angles; in a narrow viewing angle mode, the liquid crystal of the liquid crystal layer is lifted to realize light leakage by applying a voltage to the viewing angle control electrode; and the amount oflight leakage of different tilt areas is different, so that the gray-scale inversion problem can be improved when viewed from a large viewing angle.

Description

technical field [0001] The invention relates to the field of liquid crystal display technology, in particular to a liquid crystal display device and a driving method thereof. Background technique [0002] Liquid crystal display devices have the advantages of good image quality, small size, light weight, low driving voltage, low power consumption, no radiation, and relatively low manufacturing costs, and occupy a dominant position in the field of flat panel displays. [0003] With the continuous advancement of liquid crystal display technology, the viewing angle of the display has been expanded from about 120° to more than 160°. While enjoying the visual experience brought by the large viewing angle, people also hope to effectively protect commercial secrets and personal privacy. In order to avoid commercial loss or embarrassment caused by leakage of screen information. Therefore, in addition to the wide viewing angle, the display device is also required to have the function...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13G02F1/133G02F1/1337G02F1/1343G02F1/1362
CPCG02F1/1323G02F1/13306G02F1/133753G02F1/134309G02F1/136286
Inventor 沈家军周学芹
Owner KUSN INFOVISION OPTOELECTRONICS
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