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COnductive coating liquid composition, and antistatic film and display device using same

一种抗静电膜、显示装置的技术，应用在导电涂料、用于材料和表面科学的纳米技术、应用等方向，能够解决高故障率、触摸传感器触摸灵敏度劣化、提高制造成本等问题

Active Publication Date: 2017-07-14
LG DISPLAY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, although the touch sensor is provided inside the display panel by the in-cell technology, static electricity is discharged through the above-mentioned antistatic film, and thus a change in capacitance cannot be detected when the touch sensor is touched by a finger or the like, resulting in a touch of the touch sensor Sensitivity degradation
In other words, the antistatic film acts as a conductor with relatively high conductivity when compared with a certain amount of capacitance generated by a finger touch, etc., thereby discharging the capacitance so that the touch sensor cannot recognize a finger touch, etc. from the user
[0007] Removing the antistatic film to solve this problem will result in higher failure rate due to static electricity generated during manufacturing, which in turn increases failure cost and also increases manufacturing cost, thus deteriorating display quality

Method used

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  • COnductive coating liquid composition, and antistatic film and display device using same
  • COnductive coating liquid composition, and antistatic film and display device using same
  • COnductive coating liquid composition, and antistatic film and display device using same

Examples

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Effect test

no. 1 example

[0062] Effects of an exemplary embodiment of the present invention will be described below with reference to the accompanying tables and drawings.

[0063] Table 1 below shows the sheet resistance and sheet resistance uniformity of an antistatic film according to an exemplary embodiment relative to the sheet resistance of carbon nanotubes, and the results are graphed in Figure 5 middle.

[0064] Referring to Table 1, when the sheet resistance of CNTs contained in the antistatic film increased from 477 Ω / sq to 1800 Ω / sq, the uniformity of the sheet resistance of the antistatic film increased because of the difference between different regions of the antistatic film. The percentage of uniformity decreased from 17.32% to 6.67%. In other words, this means that the difference in sheet resistance between the various regions of the antistatic film is reduced.

[0065] Table 1

[0066]

[0067] As mentioned above, in order to discharge the in-cell LCD while maintaining touch se...

no. 2 example

[0190] Hereinafter, an experimental example in which an antistatic film was formed using the above-described carbon nanotube dispersion liquid composition and a conductive coating liquid composition containing the same is disclosed.

[0191] Experiment 1: Measurement of characteristics of conductive coating liquid composition and coating film (antistatic film) produced therefrom

Embodiment 1

[0193]

[0194] Using a rotary furnace reactor with an inclination angle of 3°, carbon nanotubes (SA100, NanoSolution Inc. ) for 10 minutes to obtain carbon nanotube A with an impurity content of 15%, and then use it.

[0195] Thereafter, the carbon nanotube dispersion liquid was prepared as follows: 0.15 parts by weight of carbon nanotube A, 0.24 parts by weight of polyacrylic acid resin aqueous solution (solid 25% / polyacrylic acid resin Mw=(250000)), 0.23 parts by weight of acrylic acid embedded Segment copolymer (product name: DISPERBYK2001, acid value: 19 mgKOH / g, amine value: 29 mgKOH / g) was mixed with 99.61 parts by weight of n-propanol, and the mixture was made using a disperser with a nozzle diameter of 100 μm under a pressure of 1,500 bar. dispersion.

[0196]

[0197] 21.7 parts by weight of n-propanol and 62.6 parts by weight of TEOS were fed into a reactor with a flux tube, and stirred at room temperature (25° C.) at 300 rpm for 30 minutes using a stirrer. Th...

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Abstract

Provided are a cOnductive coating liquid composition, and an antistatic film and a display device using the same. The conductive coating liquid composition comprises 10 to 100 parts by weight of a silane sol based on 100 parts by weight of a carbon nanotube dispersion liquid composition, and the silane sol comprises 0.01 to 10 wt% of an acid catalyst with a pH of 3.0 to 6.0 based on the total weight of the silane sol.

Description

technical field [0001] The present disclosure relates to a conductive coating liquid composition and an antistatic film, and a display device using the same. Background technique [0002] With the rapid development of the current information-oriented society, there is an increasing demand for flat panel displays having excellent characteristics such as slim profile, light weight, and low power consumption. Among them, liquid crystal displays are widely used in notebook computers or desktop monitors due to their excellent resolution, color display and image quality. [0003] In general, a liquid crystal display is a device in which two substrates each having electrodes on one surface thereof are arranged such that the surfaces where the electrodes are formed face each other, a liquid crystal material is interposed between the two substrates, and then formed on the respective substrates. The electrodes apply a voltage to generate an electric field that moves the liquid crysta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/24C09D7/12C09D1/00G02F1/1333C09D7/61
CPCC09D1/00C09D5/24G02F1/13338C08K7/24C08K2201/011C08L33/00G02F2202/22C08K3/041C09D7/61G02F2201/50G02B1/16B82Y30/00G02F2202/36Y10S977/742Y10S977/753Y10S977/932C09K2323/033C09K2323/04C09K2323/053C09K2323/03G02F1/133334G02F1/133331C09D4/00C09D183/04B32B2457/202B32B2457/208G02F1/133562G02F1/133567G02F1/133528G02F2201/503
Inventor 黄晙植朴贵弘张勇均高圣煜金亨烈文镐俊
Owner LG DISPLAY CO LTD