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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 great influence, and achieve the effect of improving the gray scale inversion problem.

Active Publication Date: 2019-01-01
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

[0029] figure 1 It is a schematic structural diagram of a liquid crystal display device according to the first embodiment of the present invention, figure 2 for figure 1 A schematic plan view of the liquid crystal display device shown. 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 is provided with a first protection layer 11 and a viewing angle control electrode 14. The viewing angle control electrode 14 includes a first electrode portion 142 and a second electrode portion 144 insulated from each other. The first protection layer 11 is stacked on the first between the electrode part 142 and the second electrode part 144 . The second substrate 30 is provided with a common electrode 32 , an insul...

no. 2 example

[0042] Figure 5 It is a schematic structural diagram of a liquid crystal display device according to the second embodiment of the present invention, as Figure 5 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 directions of the first electrode strips 145 and the second electrode strips 147 in the second embodiment are the same Examples are different. Each pixel region P of the liquid crystal display device of the second embodiment is divided into a first region P1 and a second region P2 by a straight line parallel to the scanning line 37, and the first electrode strips 145 and the second electrode strips 147 are all parallel to the scanning lines. 37, and each first electrode strip 145 corresponds to cover the first region P1 of the pixel units P in the same row, and each second electrode strip 147 corresponds to the seco...

no. 3 example

[0044] Figure 6 It is a schematic structural diagram of a liquid crystal display device according to the third embodiment of the present invention, as Figure 6 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 the structure of the second electrode portion 144 of the liquid crystal display device of the third embodiment is the same as that of the first embodiment The structure of the second electrode part 144 is different. The first electrode strips 145 of the liquid crystal display device in the third embodiment are arranged parallel to the data lines 38, and each first electrode strip 145 corresponds to cover the first region P1 of the pixel unit P in the same column, and the second electrode part 144 is disposed on the entire first substrate 10 and simultaneously covers the first region P1 and the second region P2. Other str...

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Abstract

The invention discloses a liquid crystal display device and a driving method thereof. The liquid crystal display device comprises a first substrate, a second substrate and a liquid crystal layer, wherein the second substrate is opposite to the first substrate; the liquid crystal layer is positioned between the first substrate and the second substrate; a first protective layer and a visual angle control electrode are arranged on the first substrate; the visual angle control electrode comprises a first electrode part and a second electrode part which are insulated from each other; each pixel unit comprises a first region and a second region; the first electrode part correspondingly covers the first regions of all the pixel units; and the second electrode part at least correspondingly coversthe second regions of all the pixel units. According to the liquid crystal display device and the driving method thereof, during display in a narrow visual angle mode, a first voltage signal and a second voltage signal which are different can be applied to the first electrode part and the second electrode part, and vertical electric fields with different intensities are formed in the positions corresponding to the first regions and the second regions, so that the liquid crystal standing angles in different positions are different; and during watching in a large visual angle mode, the visual angles of different regions are complementary, so that the problem of gray scale inversion can be solved.

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): G02F1/1343G02F1/13G09G3/36
CPCG02F1/1323G02F1/134309G09G3/36
Inventor 井晓静荣誉东房耸
Owner KUSN INFOVISION OPTOELECTRONICS
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