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Antistatic optical constructions having optically-transmissive adhesives

A light transmissive, adhesive technology applied in the field of optical films

Inactive Publication Date: 2011-06-29
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This dissipates the charge on the release liner, but still leaves a substantial amount of charge on the adhesive surface

Method used

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  • Antistatic optical constructions having optically-transmissive adhesives
  • Antistatic optical constructions having optically-transmissive adhesives
  • Antistatic optical constructions having optically-transmissive adhesives

Examples

Experimental program
Comparison scheme
Effect test

example

[0065] Abbreviation list

[0066]

[0067] testing method :

[0068] Anti-static efficiency measurement

[0069] Using Electro-Tech Systems, Inc. model 406C (from Electro-Tech (Glenside, PA)) electrostatic attenuation meter, by charging the sample to ±5kV, and then measuring the static charge attenuation to 10% of its initial value required Time, to determine the static charge decay time. Cut a film sample about five inches (12.7 cm) in length, and place it between the electrodes of the measuring instrument using a magnet. The static charge decay test was performed on three parallel film samples, and the average decay time was recorded.

[0070] A PROSTAT (Bensenville, IL) PRS-801 resistance system equipped with a PRF-911 concentric ring fixture was used for surface resistance measurement. According to the documentation provided by the instrument, multiply the measured value by 10 to convert the output value in ohms to ohms / square. The measurement of surface resistance and stat...

example 1

[0100] The laminate of the ZEONOR polyolefin film that has been primed with the above-mentioned antistatic sulfopolyester / PEDOT primer solution and directly coated with the optically transparent adhesive PSA-1 is placed in a thick layer as in Comparative Example 1. Glass plate.

example 2

[0102] The laminate of the ZEONOR polyolefin film primed with the antistatic PEDOT primer solution was directly coated with the optically transparent adhesive ASPSA-1, and then placed on a thick glass plate as in Comparative Example 1. on.

[0103] Table 1

[0104] Comparative Example 1 and Example 1-2 Static Dissipation

[0105]

[0106] Table 2

[0107] Optical performance measurement of Comparative Example 1 and Example 1-2

[0108] sample

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Abstract

Antistatic optical constructions have optical films that include antistatic layers and optically-transmissive adhesives. A liquid crystal display assembly including the antistatic construction is also disclosed.

Description

[0001] Related patent applications [0002] This application claims priority from U.S. Patent Application No. 12 / 181,667 filed on July 29, 2008. Technical field [0003] The present invention relates to an optical film including an antistatic layer and a light transmissive adhesive. Background technique [0004] In liquid crystal display (LCD) applications, light transmissive pressure sensitive adhesives are used to adhere optical films such as polarizing films to liquid crystal cells. The polarizer may be of any type (for example, H-type polarizer or K-type polarizer), and may be in direct contact or indirect contact with the adhesive. The outer layer of the liquid crystal cell is usually glass. The basic requirements for adhesives used in LCD applications include high light transmission, low haze, and low birefringence. [0005] The adhesive is usually provided on the release liner. When the release liner is removed from the adhesive surface, a residual charge of several hundred...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02F1/13363
CPCG02F2202/22G02F1/13363G02B5/3025G02F2202/28G02F2202/16C09K2323/00G06F2203/04103Y10T428/31938G02B5/30
Inventor 程铭郝恩才夏剑辉艾伯特·I·埃费拉茨
Owner 3M INNOVATIVE PROPERTIES CO
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