Shenzhen China Star Optoelectronics Technology Co., Ltd.

Huifang Duan

Junjie Huang

Hao Jin

Rui Xu

Jungmao Tsai

Bingcheng Huang

Xiaoxin Zhang

Weiwei Zhang

Quan Liu

Hongqing Huang

Shaoyuan Zhang

The present invention provides a base film of modified polyvinyl alcohol as well as a method for preparing the base film of modified polyvinyl alcohol and a polarizer made from the base film. The method includes steps of: (1) executing surface graft modification of nano-silicon dioxide particles with fluorinated silane to obtain a modified nano-silicon dioxide powder; (2) adding the modified nano-silicon dioxide powder obtained from the step (1) to an aqueous solution of polyvinyl alcohol polymer, in order to prepare a composite solution of polyvinyl alcohol polymer; and (3) pouring the composite solution of polyvinyl alcohol polymer prepared from the step (2) onto a surface of a casting substrate to obtain a base film of modified polyvinyl alcohol (PVA). The present invention enhances the heat and humidity resistances and the stability of the PVA base film, and improves its mechanical performance and sticking-resistance.

Method for preparing a base film of modified polyvinyl alcohol polymer

The present invention discloses a debris collection device for cutting mechanism and an LCD panel cutting debris suction device. A debris collection device for cutting mechanism comprises a debris collection cap and a suction spray head used for connecting with a suction device; the debris collection cap comprises a connecting part used for surrounding and fixing on the cutting mechanism, and the debris collection cap is provided with a through hole communicated with the suction spray head. The present invention can remove the debris produced in the cutting process in time, and can reduce relevant defects such as line scratches, terminal scratches, short circuit, broken circuit, etc. which are generated because of debris. Thus, the product yield and quality of LCD panels can be improved, and the time of the subsequent cleaning process can be reduced.

Debris collection device for cutting mechanism and LCD panel cutting debris suction device

A method for coating polyimide on liquid crystal display panel includes: (1) providing nozzles and a glass substrate; (2) tightly and regularly juxtaposing the nozzles in a row so that the row has a length that corresponds to width of the glass substrate; (3) vertically positioning the entire row above the glass substrate so as to correspond to the glass substrate along the width of the glass substrate; (4) simultaneously activating the nozzles to allow each of the nozzles to simultaneously drip down polyimide solution according to predetermined flow rate, while moving the glass substrate so as to have the polyimide solution uniformly applied to the glass substrate form a polyimide film; and (5) using a doctor blade to shape the polyimide film that is uniformly coated on the glass substrate so as to provide a regular and flat surface of the polyimide film on the glass substrate.

Method for coating polyimide on liquid crystal display panel

The present invention discloses a pressure point inspection device, able to press on a plurality of pressure points on liquid crystal display panel for inspecting display condition, the pressure point inspection device includes: lateral adjustment board, lateral adjustment board including a first lateral board and a second lateral board; vertical adjustment board, disposed crossly on lateral adjustment board, vertical adjustment board including first vertical board and second vertical board, able to fold separately; wherein lateral adjustment board and/or vertical adjustment board disposed with a plurality of inspection heads, vertical disposition gap between first lateral board and second lateral board adjustable and lateral disposition gap between first vertical board and second vertical board adjustable. As such, the pressure point inspection device can save time of pressing pressure points on TFT-LCD and improve inspection efficiency and avoid missing pressure point.

Pressure point inspection device

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Shenzhen, China

Huifang Duan