A photo-alignment wiring structure
A technology of optical alignment and liquid crystal alignment, applied in optics, nonlinear optics, instruments, etc., can solve the problems of different pressure sensitivity, increase the company's development cost, yield or reliability, and improve the overall yield of products and product feature achievement rate, increase product alignment success rate, and reduce cost waste
Inactive Publication Date: 2017-09-15
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0004] With the development of science and technology, panels are gradually becoming more mature. There are more and more types of products on the market, and the demand for curved surface / high penetration products is increasing. Due to its compatibility with flat and curved surfaces, the optical alignment process has been favored by several large panel manufacturers, but In the optical alignment process, different pixel designs are often used. When the design is tightened, the pressure sensitivity is different, resulting in the alignment results not being completely balanced, causing product development schedules to be delayed or yield or reliability such as optics being affected, increasing the company’s Development costs
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[0019] see figure 1 , which is a schematic diagram of the first preferred embodiment of the optical alignment wiring structure of the present invention, figure 1 TFT-LCD in PSVA mode is taken as an example in the above, but the present invention is not limited to TFT panels. In the optical alignment wiring structure, the TFT substrate common electrode pad (A-com PAD) 11 is connected to the TFT substrate in the pixel area, and the CF substrate common electrode pad (CF-com PAD) 12 is connected to the CF substrate in the pixel area. The external voltage V is respectively input to the TFT substrate and the CF substrate in the pixel area through the common electrode pad 11 of the TFT substrate and the common electrode pad 12 of the CF substrate. Under the cooperation of ultraviolet light irradiation, the liquid crystal alignment in the pixel area is completed. The present invention adds the design of the common electrode pad of the TFT substrate and the common electrode pad of the...
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The invention provides a photo-alignment wiring structure which comprises a TFT substrate common electrode bonding pad and a CF substrate common electrode bonding pad which are arranged in the vicinity of a liquid crystal pixel zone, wherein the TFT substrate common electrode bonding pad is connected with a TFT substrate of the pixel zone and the CF substrate common electrode bonding pad is connected with a CF substrate of the pixel zone. During liquid crystal alignment of the pixel zone, a first voltage is input to the TFT substrate of the pixel zone via the TFT substrate common electrode bonding pad and a second voltage is input into the CF substrate of the pixel zone via the CF substrate common electrode bonding pad; and then liquid crystal alignment is achieved under cooperation of ultraviolet light illumination. The photo-alignment wiring structure can increase the success rate of product alignment, reduce development intervals, increase an overall yield of products and a characteristic achieving rate of products, and reduce cost waste.
Description
technical field [0001] The invention relates to the field of liquid crystal displays, in particular to an optical alignment wiring structure. Background technique [0002] Liquid crystal photo-alignment technology refers to the application of voltage to the liquid crystal panel, through the irradiation of ultraviolet light, to promote the monomer reaction in the liquid crystal, so that the liquid crystal molecules form a pre-tilt angle, so as to achieve the purpose of liquid crystal alignment. The liquid crystal panel generally includes a CF (Color Filter, color filter) substrate, a liquid crystal layer, and a TFT (Thin Film Transistor, thin film transistor) substrate. The CF substrate and the TFT substrate are respectively provided with an indium tin oxide transparent electrode layer, and its indium oxide The surface of the tin transparent electrode layer is provided with a polyimide alignment film, and the liquid crystal layer between the CF substrate and the TFT substrate...
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Inventor 熊梅
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD