Tin-based high-resistance film coating liquid, preparation method thereof and preparation method of tin-based high-resistance film

A technology of large resistance and coating solution, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as occlusion, affecting touch effect, and difficulty in realizing touch effect, so as to reduce the large resistance The effect of resistance change, stability, and high light transmittance

Pending Publication Date: 2022-05-06
湖南七点钟文化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while the planar shielding layer grounds the electrostatic charge, it also blocks the transmission of the projected electric field signal between the driving electrode lines and the detection electrode lines, which greatly affects the realization of the touch effect.
[0006] Therefore, it is urgent for the field of film preparation to solve the problem that the projected electric field signal between the drive electrode lines and the detection electrode lines of the existing touch display screen is blocked by the planar shielding layer and the touch effect is difficult to achieve.

Method used

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  • Tin-based high-resistance film coating liquid, preparation method thereof and preparation method of tin-based high-resistance film
  • Tin-based high-resistance film coating liquid, preparation method thereof and preparation method of tin-based high-resistance film
  • Tin-based high-resistance film coating liquid, preparation method thereof and preparation method of tin-based high-resistance film

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preparation example Construction

[0034] The application also provides a preparation method for a tin-based high-resistance thin film coating solution, comprising the following steps:

[0035] After mixing water, ethanol and a dispersant, adding a tin-based alloy, adding a thickener, and stirring to obtain a tin-based high-resistance thin-film coating solution.

[0036] The preparation sequence of the above-mentioned tin-based high-resistance thin film coating solution can ensure good uniformity of the thin film. During the above mixing process, the whole process is carried out under stirring; the stirring speed is 100-2000 rpm, and the stirring time is 60-120 min.

[0037] The present application also provides a method for preparing a tin-based high-resistance thin film, which uses the dipping and pulling method to immerse the entire cleaned base substrate in the coating solution, and then immerses the entire cleaned substrate in the coating solution at a controlled uniform speed. The substrate is pulled out...

Embodiment 1

[0051] Preparation of coating solution 1: Mix 45 parts by weight of water, 30 parts by weight of ethanol, and 8 parts by weight of dispersant with a stirring speed of 300 rpm, then add 7 parts by weight of tin-based alloy, and finally add 10 parts by weight of thickener, stirred for 70min; tin-based alloys include 70wt% tin, 30wt% aluminium, zinc, antimony and niobium;

[0052] Preparation of coating solution 2: Mix 56 parts by weight of water, 23 parts by weight of ethanol, and 7 parts by weight of dispersant with a stirring speed of 500 rpm, then add 8 parts by weight of tin-based alloy, and finally add 6 parts by weight of thickener, stirred for 90min; tin-based alloys include 80wt% tin, 20wt% aluminium, zinc and antimony;

[0053] Preparation of coating solution 3: Mix 60 parts by weight of water, 20 parts by weight of ethanol, and 6 parts by weight of dispersant with a stirring speed of 200 rpm, then add 10 parts by weight of tin-based alloy, and finally add 4 parts by we...

Embodiment 2

[0059]Operation before cleaning is identical with embodiment 1;

[0060] Vacuum absorb the cleaned PET substrate on the surface of the workbench, the vacuum pressure is 0.8Pa; the PET substrate enters the coating solution 1 to pull the coating, and then the rotary table automatically rotates the coating solution 2 to the bottom of the substrate, and then the substrate descends into Coating solution 2 pulls the coating, and the subsequent film layers are completed in sequence; the pulling speed is 150 μm / s; the immersion time is 150s; the number of coating times is 5 times; the solution temperature is 22°C;

[0061] After the coating is completed, let it dry naturally for 40 minutes at a temperature of 28°C and a film thickness of 150 μm;

[0062] Put the air-dried substrate into a vacuum drying oven, raise it to 100°C at 5°C / min and keep it for 1.5 hours, then raise the temperature to 250°C and keep it for 45 minutes to dry, then naturally drop to room temperature, the vacuum ...

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Abstract

The invention provides tin-based high-resistance film coating liquid. The tin-based high-resistance film coating liquid is prepared from tin-based alloy, water, a dispersing agent, a thickening agent and ethyl alcohol. The invention further provides a preparation method of the tin-based high-resistance film coating liquid. Furthermore, the invention further provides a preparation method of the tin-based high-resistance thin film. According to the tin-based high-resistance film provided by the invention, the specific film coating liquid and the multi-layer dip-coating process are adopted, so that the film which not only can ensure the export of static electricity, but also does not affect the conduction of signals is obtained.

Description

technical field [0001] The invention relates to the technical field of electronic display devices, in particular to a tin-based high-resistance film coating solution, a preparation method thereof and a preparation method of a tin-based large-resistance film. Background technique [0002] LCD / OLED panels were originally only used to display images, and users can only receive image information in one direction. The emergence of touch panels allows users to interact with the panels and make the panels come alive. There are many types of touch panels, and most of the "multi touch (Multi touch)" panels used in mobile phones currently use the "projected capacitive touch" technology. The touch lines (Sensor pattern) of projected capacitive touch mainly include driving lines (Tx) and sensing lines (Rx), respectively with horizontal lines and vertical lines densely distributed on the entire panel, such as figure 2 As shown in (a), we can imagine that the driving line (Tx) is "projec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/06C09D1/00C09D7/65C09D7/43C22C13/00G06F3/041G06F3/044C03C17/10C08L67/02
CPCC08J7/06C09D1/00C09D7/65C09D7/43C22C13/00G06F3/0412G06F3/044C03C17/10C08J2367/02G06F2203/04103
Inventor 黄永香
Owner 湖南七点钟文化科技有限公司
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