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Friction cloth checking machine and friction cloth checking method

An inspection method and technology of rubbing cloth, applied in force/torque/work measuring instruments, optics, instruments, etc., can solve problems affecting the judgment of rubbing cloth, differences in inspection results, and defect points that cannot be directly corresponded, etc., so as to save inspection cost, effect of precise inspection

Inactive Publication Date: 2014-08-06
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

In this method, the surface condition of the friction cloth can only be roughly shown, and the defect points on the friction cloth detected cannot directly correspond to the friction cloth, and the inspection results are different due to different inspectors, and at the same time The surface condition of the ITO glass may affect the judgment of the surface condition of the friction cloth

Method used

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  • Friction cloth checking machine and friction cloth checking method
  • Friction cloth checking machine and friction cloth checking method

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Embodiments of the present invention provide a pressure-sensing friction cloth inspection machine and a friction cloth inspection method. When the friction cloth rubs against a pressure-sensing inspection base, the pressure-sensing base can detect a pressure-sensing signal, and perform an inspection on the pressure-sensing signal. Through conversion and analysis, the defect points on the friction cloth can be determined, and the distribution of the pressure values ​​at each detection point can be displayed on the display device in real time. In this way, the real-time and accurate inspection of the surface defects of the friction cloth is realized.

[0036] refer to figure 1 , the rubbing cloth inspection machine of the embodiment of the pres...

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Abstract

The invention provides a rubbing cloth inspection machine and a rubbing cloth inspection method, belonging to the field of liquid crystal display manufacture. The friction cloth inspection machine includes: a base, the surface of the base is provided with a pressure sensing device; a bracket straddling the base, the bracket can move in a direction parallel to the surface of the base; it can rotate The friction roller installed on the support, the outer periphery of the friction roller is wrapped with friction cloth, the friction roller can move up and down along the support, when the friction cloth rubs the surface of the abutment, the pressure sensor The device is capable of detecting pressure-sensing signals. The invention can realize the precise inspection of the surface defects of the rubbing cloth.

Description

technical field [0001] The invention relates to the field of liquid crystal display manufacture, in particular to a rubbing cloth inspection machine and a rubbing cloth inspection method. Background technique [0002] In the manufacturing technology of liquid crystal displays, a rubbing process is usually used to pre-process the alignment of liquid crystal molecules. The main process of the rubbing process includes: placing the substrate coated with polyimide (PI) film (also called orientation film) on the carrying platform; Roll on the bearing platform, thereby driving the friction cloth to roll over the surface of the alignment film on the substrate with a certain pressure; during the rolling process of the friction cloth, the fibers (Pile) on the surface of the rubbing cloth interact with the surface of the alignment film, and the surface of the alignment film Grooves are formed on the top. After the rubbing process is completed, the substrate and another substrate are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1337
CPCG02F1/1337G01L5/16G02F1/133784G01L5/0076
Inventor 胡勇郭红光汪剑成杨端王彪张龙
Owner BOE TECH GRP CO LTD
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