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Liquid-crystal display device having controllable wide and narrow viewing angles and viewing angle control method

A liquid crystal display device, a technology for viewing angle control, applied in static indicators, instruments, nonlinear optics, etc., can solve problems that do not conform to the development trend of thinner and thinner liquid crystal display devices, increase the thickness and cost of liquid crystal display devices, etc., and achieve strong The effect of operational flexibility and convenience

Active Publication Date: 2017-01-25
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this dual-light source backlight system will increase the thickness and cost of the liquid crystal display device, which is not in line with the development trend of thinner and lighter liquid crystal display devices.

Method used

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  • Liquid-crystal display device having controllable wide and narrow viewing angles and viewing angle control method
  • Liquid-crystal display device having controllable wide and narrow viewing angles and viewing angle control method
  • Liquid-crystal display device having controllable wide and narrow viewing angles and viewing angle control method

Examples

Experimental program
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Effect test

no. 1 example

[0027] figure 1 It is a schematic plan view of a single sub-pixel of the liquid crystal display device in the first embodiment of the present invention, figure 2 for figure 1 A schematic cross-sectional view of a single sub-pixel of a liquid crystal display device along line II-II, please refer to Figure 1 to Figure 2 The liquid crystal display device includes a first substrate 21 , a second substrate 22 opposite to the first substrate 21 , and a liquid crystal layer 23 between the first substrate 21 and the second substrate 22 . Wherein, the first substrate 21 is a color filter substrate, and the second substrate 22 is a thin film transistor array substrate. The liquid crystal display device provided in this embodiment is applicable to a twisted nematic (TN) liquid crystal display device, that is, it is improved on the basis of a TN type liquid crystal display.

[0028] The first substrate 21 is provided with a common electrode 211 (common electrode), an insulating layer...

no. 2 example

[0043] Please refer to Figure 5 The main difference between this embodiment and the above-mentioned first embodiment is that, in this embodiment, the plurality of viewing angle control electrode strips 213a extend along the vertical direction, and the extension direction of the plurality of viewing angle control electrode strips 213a is related to the data Line 223 is the same. Since in this embodiment, the plurality of viewing angle control electrode strips 213a are parallel to the alignment direction X1 of the first alignment film 214 and extend along the vertical direction, therefore, this embodiment can realize a narrow vertical direction of the liquid crystal display device. perspective.

[0044] Viewing angles in up / down / left / right directions 60° / 60° / 60° / 60° 25° / 30° / 70° / 70° center contrast 940 225

[0045] As shown in the test data in the above table, in this embodiment, under the wide viewing angle display, the viewing angles in the up / down / lef...

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Abstract

The invention discloses a liquid-crystal display device having controllable wide and narrow viewing angles and a viewing angle control method. The liquid-crystal display device comprises a first substrate, a second substrate and a liquid-crystal layer located between the first substrate and the second substrate, wherein the first substrate is provided with a common electrode, multiple sub-pixels are formed on the second substrate through definition of scanning lines and data lines, a pixel electrode is arranged in each sub-pixel, the first substrate close to the liquid-crystal layer is provided with a first alignment layer, the second substrate close to the liquid-crystal layer is provided with a second alignment layer, a viewing angle control electrode is further arranged on the first substrate, is of a patterned structure and comprises multiple mutually spaced viewing angle control electrode strips, and the extending directions of multiple viewing angle control electrode strips are parallel to the alignment direction the first alignment layer. In the embodiment, switching of the wide and narrow viewing angles in the extending directions of the viewing angle control electrode strips can be achieved by controlling the voltage exerted onto the viewing angle control electrode strips, and the liquid-crystal display device has stronger operation flexibility and convenience.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display device with controllable wide and narrow viewing angles and a viewing angle control method. Background technique [0002] Liquid crystal display (liquid crystal display, LCD) has the advantages of good image quality, small size, light weight, low driving voltage, low power consumption, no radiation and relatively low manufacturing cost, and occupies a dominant position in the field of flat panel display. [0003] The current display devices are gradually developing in the direction of wide viewing angles. Whether it is a mobile terminal application, a desktop display or a notebook computer application, in addition to the demand for a wide viewing angle, in many occasions, the display device is also required to have a wide viewing angle and a narrow viewing angle. Toggle function. At present, there are mainly the following methods to realiz...

Claims

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Application Information

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IPC IPC(8): G02F1/1343G02F1/133
CPCG02F1/13306G02F1/134309
Inventor 廖家德余嘉洺房耸井晓静
Owner KUSN INFOVISION OPTOELECTRONICS
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