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Method for coloring substrate of capacitive touch screen

A capacitive touch screen, capacitive technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as increasing process complexity, reducing product reliability, affecting touch screen performance, etc., and achieve stability Good performance, improved stability, thin coating effect

Active Publication Date: 2015-02-25
FUJIAN FEIYANG OPTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, in the process of screen printing ink, the prior art uses an ink printing machine for ink printing, resulting in a thick ink layer that is easy to fall off, increasing the complexity of the process, reducing the reliability of the product, and thus affecting the touch screen. performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Lay the water transfer film flat on the water surface, the water temperature is 35 ℃;

[0052] The activator is sprayed on the surface of the water transfer film, and the activator includes the following components:

[0053] 24 parts by weight of diethylene glycol monoethyl ether, 16 parts by weight of N'N-carbonyldiimidazole, 45 parts by weight of xylene, 8 parts by weight of n-butanol;

[0054] Utilize sand fineness of 700 grains / cm 2 The glass substrate is polished with water sandpaper, and then the laser is used for pulsed laser irradiation and texturing. The laser parameters are as follows: the input power is 4.2KW~4.8KW, the optical pulse power is 18W~25W, the spot size is 40μm ~ 50μm, the spot size is 40μm ~ 50μm, The pitch is between 154μm~158μm, the pitch is 91μm~93μm, the optical pulse width is 6μs~7μs, and the distribution density is 70 points / mm 2 to 72 dots / mm 2 , the texture roughness is 0.7μm ~ 0.9μm.

[0055] The glass substrate is baked at 120°C for...

Embodiment 2

[0057] Lay the water transfer film flat on the water surface, and the water temperature is 32 ℃;

[0058] The activator is sprayed on the surface of the water transfer film, and the activator includes the following components:

[0059] 20 parts by weight of diethylene glycol monoethyl ether, 18 parts by weight of N'N-carbonyldiimidazole, 48 parts by weight of xylene, 7 parts by weight of n-butanol;

[0060] Utilize sand fineness of 700 grains / cm 2 The glass substrate is polished with water sandpaper, and then the laser is used for pulsed laser irradiation and texturing. The laser parameters are as follows: the input power is 4.2KW~4.8KW, the optical pulse power is 18W~25W, the spot size is 40μm ~ 50μm, the spot size is 40μm ~ 50μm, The pitch is between 154μm~158μm, the pitch is 91μm~93μm, the optical pulse width is 6μs~7μs, and the distribution density is 70 points / mm 2 to 72 dots / mm 2 , the texture roughness is 0.7μm ~ 0.9μm.

[0061] The glass substrate is baked at 120°C...

Embodiment 3

[0063] Lay the water transfer film flat on the water surface, and the water temperature is 36 ℃;

[0064] The activator is sprayed on the surface of the water transfer film, and the activator includes the following components:

[0065] 24 parts by weight of diethylene glycol monoethyl ether, 17 parts by weight of N'N-carbonyldiimidazole, 43 parts by weight of xylene, 10 parts by weight of n-butanol;

[0066] Utilize sand fineness of 700 grains / cm 2 The glass substrate is polished with water sandpaper, and then the laser is used for pulsed laser irradiation and texturing. The laser parameters are as follows: the input power is 4.2KW~4.8KW, the optical pulse power is 18W~25W, the spot size is 40μm ~ 50μm, the spot size is 40μm ~ 50μm, The pitch is between 154μm~158μm, the pitch is 91μm~93μm, the optical pulse width is 6μs~7μs, and the distribution density is 70 points / mm 2 to 72 dots / mm 2 , the texture roughness is 0.7μm ~ 0.9μm.

[0067] The glass substrate was baked at 110...

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Abstract

The invention provides a method for coloring a substrate of a capacitive touch screen. The method for coloring the substrate of the capacitive touch screen comprises the following steps that a hydrographics transfer film is flat laid on the water surface; an activating agent is sprayed on the surface of the hydrographics transfer film, wherein the activating agent comprises, by weight, 20 parts to 25 parts of diethylene glycol monoethyl ether, 15 parts to 20 parts of N'N-carbonyldiimidazole, 40 parts to 50 parts of xylene and 5 parts to 10 parts of n-butyl alcohol; polishing, pulse laser irradiation and baking are conducted on the substrate of the capacitive touch screen in sequence, then the substrate of the capacitive touch screen is immersed in water, printing ink in the hydrographics transfer film is transferred to the surface of the substrate of the capacitive touch screen under the action of water pressure, and cleaning and drying are conducted. According to the method, the hydrographics transfer printing method is used for coloring the substrate of the capacitive touch screen, it is guaranteed that the thickness of a formed coating is small, the stability is high, falling is unlikely to happen, the technology is simple, and reliability is high.

Description

[0001] technical field [0002] The invention relates to the technical field of touch screens, in particular to a coloring method for a capacitive touch screen substrate. [0003] Background technique [0004] A touch screen is a device that converts inductive signals into digital signals to realize human-computer interaction; the capacitive touch screen is a capacitive touch screen that changes the capacitance generated between a finger or a conductive medium and the electrodes on the substrate when it is touched, and drives the digital signal of the chip. Convert and output the coordinate position of the finger or conductive medium touch. Touch screen technology facilitates people's operation and use of computers. It is a very promising interactive input technology. Therefore, it has been widely valued by various countries, and a lot of manpower and material resources have been invested in its research and development. New types of touch screens continue to emerge. At pr...

Claims

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Application Information

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IPC IPC(8): G06F3/044C09D11/107C09D11/03
CPCG06F3/044
Inventor 王杰然
Owner FUJIAN FEIYANG OPTRONICS
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