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Liquid crystal display device and driving method thereof

A technology of a liquid crystal display device and a driving method, applied in nonlinear optics, instruments, optics, etc., can solve the problems of inability to switch a wide viewing angle mode, high manufacturing cost, and difficulty in meeting usage requirements, and achieve a good display effect.

Active Publication Date: 2020-01-17
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to protect commercial secrets and personal privacy, shutter technology can be used, but this technology cannot be switched to wide viewing angle mode, and the brightness loss is serious. At the same time, the manufacturing cost is high, and it is difficult to meet the use requirements.

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

[0026] Please refer to figure 1 and figure 2 The liquid crystal display device according to the first embodiment of the present invention includes an array substrate 10 , a color filter substrate 30 disposed opposite to the array substrate 10 , and a liquid crystal layer 50 located between the array substrate 10 and the color filter substrate 30 .

[0027] A plurality of pixel units are formed on the array substrate 10 defined by the scan lines 100 and the data lines 101 , and the pixel units include a plurality of first pixel units P1 and a plurality of second pixel units P2 . The array substrate 10 includes a first substrate 102, a thin film transistor (not shown in the figure), a common electrode 104 and a pixel electrode. Each pixel unit is provided with a pixel electrode and a thin film transistor. The first pixel unit P1 is provided with a second A pixel electrode 106a, and a second pixel electrode 106b is disposed in the second pixel unit P2. Specifically, the thin f...

no. 2 example

[0042] The second embodiment of the present invention provides a liquid crystal display device driving method for driving the liquid crystal display device of the first embodiment, the liquid crystal display device driving method includes:

[0043] In the wide viewing angle mode, between the first pixel electrode 106a and the first viewing angle control electrode 306 in the area of ​​the first pixel unit P1, and between the second pixel electrode 106b and the second viewing angle control electrode in the area of ​​the second pixel unit P2 308 to apply a voltage difference smaller than a first preset value. Specifically, a voltage of 0V can be applied to the first viewing angle control electrode 306 and the second viewing angle control electrode 308, and a voltage of 0-3V can be applied to the first pixel electrode 106a and the second pixel electrode 106b (that is, the applied peak values ​​are 0V and 3V respectively). AC voltage). At this time, the voltage of the first viewin...

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Abstract

The invention discloses a liquid crystal display device and a driving method thereof. The liquid crystal display device comprises an array substrate, a color film substrate arranged opposite to the array substrate, and a liquid crystal layer arranged between the array substrate and the color film substrate, wherein a plurality of pixel units are formed on the array substrate by limiting of scanning lines and data lines, each pixel unit is provided with a pixel electrode therein, the pixel unit comprises a plurality of first pixel units and a plurality of second pixel units, the first pixel unit is provided with a first pixel electrode therein, the second pixel unit is provided with a second pixel electrode therein, the color film substrate comprises a first viewing angle control electrodeand a second viewing angle control electrode, the first viewing angle control electrode is arranged corresponding to the first pixel units and the second pixel units, and the second viewing angle control electrode is arranged corresponding to the second pixel units. The liquid crystal display device and the driving method provided by the invention can realize display of multiple modes such as a wide viewing angle, a left and right narrow viewing angle and two whole narrow viewing angles, can realize switching of multiple display modes, and can achieve a good display effect.

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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IPC IPC(8): G02F1/1343G02F1/1335G02F1/13
CPCG02F1/1343G02F1/133514G02F1/1323
Inventor 沈家军郑会龙周学芹
Owner KUSN INFOVISION OPTOELECTRONICS