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Friction cloth and friction device for electrostatic discharge

A technology of electrostatic discharge and rubbing cloth, which is applied in nonlinear optics, instruments, optics, etc., can solve the problem of increasing scratches on polyimide films, and achieve the effects of improving yield, enhancing antistatic performance, and increasing economic benefits

Inactive Publication Date: 2014-06-18
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned technical scheme uses antistatic conductive fibers to completely replace the traditional technical scheme of friction hairiness fibers. Considering the matching of conductive polymer fibers and polyimide materials that make liquid crystals align, this technical scheme significantly increases Risk of scratching polyimide film during substrate rubbing

Method used

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  • Friction cloth and friction device for electrostatic discharge
  • Friction cloth and friction device for electrostatic discharge
  • Friction cloth and friction device for electrostatic discharge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The rubbing cloth described in this embodiment includes a rubbing cloth base film 2, a rubbing hairiness 3 that is woven and attached to the rubbing cloth base film 2 for contacting with the polyimide alignment film 5 and rubbing, and the rubbing cloth base film 2 is bonded Double-sided adhesive tape 4 attached to the rubbing roller.

[0055] Wherein, the thickness of the double-sided adhesive tape 4 is about 0.14 mm, which is the same as that of conventional double-sided adhesive tape. The thickness of the friction cloth base film 2 is about 0.3 mm, the average length of the friction hairs 3 is about 1.5 mm to 2.3 mm, and the diameter is about 11 μm to 15 μm.

[0056] In this embodiment, the hairiness of the rubbing cloth is composed of two materials, one is traditional cotton fiber or rayon fiber, and the other is a composite material composed of one or several kinds of high molecular conductive polymer fibers. Among them, the friction hairiness density is 40000~7000...

Embodiment 2

[0062] Compared with Embodiment 1, the only difference is that in this embodiment:

[0063] The thickness of double-sided adhesive tape 4 is about 0.14mm, same as conventional double-sided adhesive tape. The thickness of the friction cloth base film 2 is about 0.3 mm, the average length of the friction hairs 3 is about 1.5 mm to 2.3 mm, and the diameter is about 11 μm to 15 μm.

[0064] Such as figure 1 As shown, in this embodiment, 0.6 g / m2 of Au particles 4-1 is mixed into the double-sided adhesive tape 4, and the particle diameter of the Au particles 4-1 ranges from 10 nm to 20 nm.

[0065] Such as image 3 As shown, the friction cloth base film 2 of this embodiment is formed by 5% Au wire 2-1 and 95% cotton fiber or cupro ammonia fiber 2-2 texture, wherein, Au wire 2-1 and cotton fiber or cupro ammonia The diameters of the fibers 2-2 are all 10 μm to 20 μm. Specifically, the Au thread 2-1 is used as a part / all of the weft thread, and the cotton fiber or cupro ammonia f...

Embodiment 3

[0069] Compared with Embodiment 1, the only difference is that in this embodiment:

[0070] The thickness of double-sided adhesive tape 4 is about 0.14mm, same as conventional double-sided adhesive tape. The thickness of the friction cloth base film 2 is about 0.3 mm, the average length of the friction hairs 3 is about 1.5 mm to 2.3 mm, and the diameter is about 11 μm to 15 μm.

[0071] Such as figure 1 As shown, in this embodiment, 1 g / m2 of Au particles 4-1 is mixed into the double-sided adhesive tape 4, and the particle diameter of the Au particles 4-1 ranges from 90 nm to 100 nm.

[0072] Such as image 3As shown, the friction cloth base film 2 of this embodiment is formed by 25% Au wire 2-1 and 75% cotton fiber or cupro ammonia fiber 2-2 texture, wherein, Au wire 2-1 and cotton fiber or cupro ammonia The diameters of the fibers 2-2 are all 10 μm to 20 μm. Specifically, the Au thread 2-1 is used as a part / all of the weft thread, and the cotton fiber or cupro ammonia fi...

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Abstract

The invention discloses a friction cloth for electrostatic discharge. The friction cloth for electrostatic discharge comprises a friction cloth base film and friction hairs which are attached onto the friction cloth base film through weaving, wherein at least part of the friction hairs is prepared by using high-molecular conductive polymer fibers. Besides, the friction cloth disclosed by the invention additionally comprises a double-sided adhesive tape which is used for bonding the friction cloth base film on a friction metal rod, wherein the double-sided adhesive tape and the friction cloth base film contain Au. The friction cloth for electrostatic discharge has the advantages that on one hand, since the high-molecular conductive polymer fibers with high compression resilience rate, high heat resistance and high stability are added into the existing friction cloth according to certain proportions, and on the other hand, since a certain amount of Au wires / Au nanoparticles are respectively added into the friction cloth base film and the double-sided adhesive tape, not only can the antistatic performance of the friction cloth be greatly enhanced, but also static charges produced by friction can be discharged quickly; when the device is matched with an X-ray static electrostatic eliminator for simultaneous use, produced zara particles can be effectively reduced, the yield of TFT-LCD (Thin Film Transistor Liquid Crystal Display) products is improved and the economic benefits are increased.

Description

technical field [0001] The invention mainly relates to the TFT-LCD industry, and provides a rubbing cloth and a rubbing device that can be used for electrostatic discharge, and can be applied to a rubbing process for aligning liquid crystal molecules through rubbing. Background technique [0002] Rubbing alignment is the most widely used in the field of TFT-LCD. At present, there are three main types of rubbing cloth (Rubbing Cloth) used in the alignment film rubbing process: cotton fiber, rayon fiber, cotton and rayon fiber mixed, etc., which are used for non-display mode LCD. [0003] The existing rubbing (Rubbing) process is as follows: First, use double-sided tape to adhere the rubbing cloth to the rubbing roller (Rubbing roller), and set a certain rubbing angle, abutment speed, roller speed and roller speed according to the difference in the display mode. Press in the amount, and then perform directional mechanical friction on the TFT and the color filter substrate, so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1337
Inventor 胡滕滕任锦宇宋勇志
Owner BOE TECH GRP CO LTD