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Passive multidomain VA (vertical alignment) type liquid crystal display and manufacturing process thereof

A liquid crystal display, passive technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of dispersion of display effect and unsatisfactory effect, and achieve the effect of increasing cost

Active Publication Date: 2013-04-17
亚世光电(集团)股份有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] In recent years, liquid crystal displays have been widely used in many fields of national economy and national defense security. With the continuous development of science and technology and human living standards, traditional passive TN and STN types are always limited in display effect due to limitations in display principles. There is a problem of dispersion. Although the method of compensation film is used to achieve a display effect without dispersion, the effect is not satisfactory; in recent years, the newly developed passive VA-type products completely avoid the problem of dispersion in principle, and display The contrast can also be increased to more than 500, which meets the needs of some customers for high-end performance

Method used

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  • Passive multidomain VA (vertical alignment) type liquid crystal display and manufacturing process thereof
  • Passive multidomain VA (vertical alignment) type liquid crystal display and manufacturing process thereof
  • Passive multidomain VA (vertical alignment) type liquid crystal display and manufacturing process thereof

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Embodiment Construction

[0025] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] A passive multi-domain VA liquid crystal display, see figure 1 , including a (composite film) polarizer 1, a liquid crystal cell 2, and a (composite film) polarizer 3 arranged from top to bottom. See figure 2 The liquid crystal cell includes an upper glass substrate 4, an upper ITO layer 5, an upper PI alignment layer 6, a liquid crystal layer 7, a spacer 8, a lower PI alignment layer 9, a lower ITO layer 10, and a lower glass substrate 11 arranged from top to bottom. , also includes frame glue 12 for closing the frame. In the liquid crystal layer 7, spacers 8 are evenly distributed with a density range of 60-180 per square millimeter, and the surroundings are filled with liquid crystals 7; the liquid crystal layer 7 is vertically aligned nematic, with a thickness ranging from 3.0 μm to 6.0 μm; the upper glass ...

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Abstract

The invention relates to a passive multidomain VA (vertical alignment) type liquid crystal display and a manufacturing process thereof. The passive multidomain VA type liquid crystal display and the manufacturing process thereof are characterized in that same pixels on an upper ITO (indium tin oxide) layer and a lower ITO layer are partitioned by multiple thin-strip-shaped thin slits in parallelly uniform distribution, thin slits on the upper ITO layer and the lower ITO layer are arrayed in a staggered manner, friction directions on an upper PI orientation layer and a lower PI orientation layer are opposite, and angles of 90+ / -5 degrees are formed between the friction directions and directions of corresponding thin slits on the upper ITO layer and the lower ITO layer. Compared with the prior art, the passive multidomain VA type liquid crystal display and the manufacturing process thereof have the advantages that the passive multidomain VA type liquid crystal display retains excellent characteristics of black background, white character, freeness of dispersion and freeness of cross effect while avoids the problem of dark space of view angle reverse direction, and good contrast effect can be obtained during full-view observing.

Description

technical field [0001] The invention relates to a display and its manufacturing process, in particular to a VA type multi-domain liquid crystal display and its manufacturing process. Background technique [0002] In recent years, liquid crystal displays have been widely used in many fields of national economy and national defense security. With the continuous development of science and technology and human living standards, traditional passive TN and STN types are always limited in display effect due to limitations in display principles. There is a problem of dispersion. Although the method of compensation film is used to achieve a display effect without dispersion, the effect is not satisfactory; in recent years, the newly developed passive VA-type products completely avoid the problem of dispersion in principle, and display The contrast can also be increased to more than 500, which meets the needs of some customers for high-end performance. However, some customers also pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1337G02F1/1341G02F1/13363G02F1/1333G02F1/139
Inventor 陈绍军侯英光左适之
Owner 亚世光电(集团)股份有限公司
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