Vertically aligned liquid crystal displayer achieving narrow visual angle display
A liquid crystal display, vertical alignment technology, used in instruments, nonlinear optics, optics, etc., can solve the problems of low contrast ratio in narrow viewing area, many compensation films, and high driving voltage of blue-phase liquid crystal displays, and solve the problem of complex electrode structure. Effect
Active Publication Date: 2016-11-16
HEBEI UNIV OF TECH
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Problems solved by technology
Although this solution can achieve a narrow viewing angle display mode, it is not suitable for large-scale industrial production due to the large number of compensation films and the low contrast in the narrow viewing area; High contrast and symmetrical viewing angle, but this solution needs to divide the pixel electrode into two parts, the main pixel and the sub-pixel, in which the main pixel is used for the display function, and the sub-pixel is used to realize the narrow viewing angle function. complex
In addition, blue-phase liquid crystal displays also face technical challenges such as high driving voltage and low transmittance.
Therefore, it is not feasible in industrial production
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[0025] The vertical alignment liquid crystal display device of the narrow viewing angle display mode of the present invention is such as figure 1 As shown, the device includes from top to bottom: an upper polarizer 1, a film 2, an upper glass substrate 3, a common electrode 4, an upper alignment layer 5a, a liquid crystal layer 6, a lower alignment layer 5b, a pixel electrode 7, a lower alignment layer Glass substrate 8, -a film 9 and lower polarizer 10.
[0026] The above-mentioned +a film 2 and -a film 9 can cause a large light leakage at an oblique angle in the dark state, and realize the narrow viewing angle display mode of the vertical alignment liquid crystal display.
[0027] The -a film 2 is a quarter-wave plate with a typical retardation of 0.1375 μm and the slow axis direction is 0°; the -a film 9 is a quarter-wave plate with a typical retardation of 0.1375 μm. The fast axis direction is 0°.
[0028] The thickness of the upper polarizer 1 is 230 μm, the direction o...
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Abstract
The invention provides a vertically aligned liquid crystal displayer achieving narrow visual angle display. The displayer is composed of an upper polaroid, +a film, an upper glass substrate, common electrodes, upper alignment layers, a liquid crystal layer, lower alignment layers, pixel electrodes, a lower glass substrate, -a film and a lower polaroid from top to bottom in sequence; the +a film attached to the upper glass substrate is a quarter-wave plate, the typical retardation of the +a film is 0.1375 micrometers, the slow axis direction is 0 degree, the -a film attached to the lower glass substrate is a quarter-wave plate, the typical retardation of the -a film is 0.1375 micrometers, and the fast axis direction is 0 degree. By means of the vertically aligned liquid crystal displayer achieving narrow visual angle display, the technical problems that a traditional narrow visual angle liquid crystal displayer is complex in structure, tedious in compensation design, low in contrast ratio, asymmetric in visual angle, too high in driving voltage, low in transmittance and the like are solved.
Description
technical field [0001] The invention designs a device in the technical field of liquid crystal display, in particular a vertical alignment liquid crystal display device for narrow viewing angle display. Background technique [0002] In the 21st century, with the rapid development of modern science and technology, electronic products such as mobile phones and tablet computers have become an indispensable part of people's daily life, study and office. How to protect private information in public places and prevent the leakage of private information has become a hot topic and an urgent task in the information age. Therefore, in the information age, it is particularly important to develop a liquid crystal display with a narrow viewing angle display mode for the protection of private information, especially for people working on the road and in bank ATMs and other applications, the narrow viewing angle display is the most suitable good choice. [0003] In recent years, people h...
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IPC IPC(8): G02F1/13363G02F1/1335
CPCG02F1/133528G02F1/13363G02F2413/02G02F1/134309G02F1/13439G02F1/133531G02F1/133638G02F1/13793
Inventor 孙玉宝刘建龙
Owner HEBEI UNIV OF TECH