Friction orientation device

Abstract

The embodiment of the invention provides a friction orientation device, and relates to the technical field of display. Static charges accumulated on surface fluff when the friction orientation devices carries out friction orientation on a substrate to be orientated can be eliminated in time, an ESD phenomenon is effectively prevented from happening to the substrate, and the product yield can be improved after friction orientation of the substrate. The friction orientation device comprises a carrying table for bearing the substrate to be orientated and a friction roll above the carrying table, the friction roll comprises a roll shaft and friction cloth attached to the roll shaft, the roll shaft can rotate in the axis direction of itself, and friction fluff for rubbing the substrate to be orientated is arranged on the surface of the friction cloth. The friction orientation device further comprises a static eliminating unit. The static eliminating unit is in contact with the friction fluff of at least partial area of the surface of the friction cloth. The friction orientation device is used for manufacturing of friction orientation devices.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a rubbing alignment device. Background technique [0002] LCD (Liquid Crystal Display, liquid crystal display device) uses an electric field to control the orientation of liquid crystal molecules to change the transmittance in different pixel units to achieve display. The organic (usually polyimide, polyimide, referred to as PI) film on the surface of the film substrate is rubbed and oriented to form grooves with a pre-tilt angle on the surface of the organic film, so that the liquid crystal molecules can follow the specific groove The directions are aligned neatly to form a liquid crystal alignment film. [0003] Among them, the main component of the device for rubbing process (that is, the rubbing orientation device) is a rubbing roller (Rubbing Roller) consisting of a roller shaft and a rubbing cloth (Rubbing Cloth) sleeved on the surface of the roller shaft; the rubbing clo...

AI Technical Summary

Problems solved by technology

[0004] However, before the above-mentioned rubbing process, since the array substrate in the LCD has gone through many process steps such as production, testing, and transportation, it is inevitable that a certain amount of electrostatic charge will be accumulated on the substrate.

In this way, during the rubbing process, the electrostatic charge is easily accumulated on the fluff on the surface of the rubbing cloth, and with the continuous rotation of the fluff on the surface of the substrate, an electrostatic discharge (Electrical Static Discharge, ESD) phenomenon occurs, shocking Through the intermediate insulating layer of the micro components in the array substrate, resulting in short circuit (Short) and open circuit (Open) phenomenon when the array substrate is energized, reducing the yield rate of LCD products

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