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Semipermeable reflective plate and reflective plate and semipermeable polazied plate and reflective polazied plate and liquid crystal display

A liquid crystal display, reflective polarizer technology, applied in optics, instruments, optical components, etc., can solve the problems of surfactant removal, fire, electrical failure, etc.

Inactive Publication Date: 2003-04-09
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure sandwiched between this insulator therefore tends to remain static, thus possibly causing a fire or electrical failure
Regarding the characteristics of the product, "protective sheet with a releasable adhesive" (hereinafter abbreviated as "SPV") is usually bonded and laminated to the back of the substrate, so there is such a problem that Applying very little surfactant to the substrate results in entrainment of the surfactant when bonding and debonding the SPV

Method used

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  • Semipermeable reflective plate and reflective plate and semipermeable polazied plate and reflective polazied plate and liquid crystal display
  • Semipermeable reflective plate and reflective plate and semipermeable polazied plate and reflective polazied plate and liquid crystal display
  • Semipermeable reflective plate and reflective plate and semipermeable polazied plate and reflective polazied plate and liquid crystal display

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0046] On a reflection plate (trade name: Alpet50; manufactured by Toyo Aluminum; the thickness of the aluminum foil: 15 microns; the thickness of the PET substrate: 50 microns) is coated with a conductive polymer type antistatic agent to form a 0.2 micron thickness antistatic Static layer. The surface resistance of the antistatic layer is 6*10 5 ohm. A polarizing plate (trade name: F1205; manufactured by Nitto Denko Corporation) was laminated and bonded thereon through an adhesive layer having a thickness of 25 µm to form a reflective polarizing plate. image 3 It is a schematic view showing the cross-sectional structure of the reflective polarizer, wherein the aluminum foil 3 in an insulating state is sandwiched between the adhesive layer 4 and the PET substrate 1 . Reference numeral 6 shows the polarizing plate, and reference numeral 6 shows the release layer 7 .

[0047] With this reflective polarizing plate, the 180-degree peeling test carried out by using a practical ...

example 2

[0050] A silver-deposited transflector (transmittance: 10%; reflectance: 70%; thickness of PET substrate: 50 μm) is coated with a conductive filler (Sno) (trade name) dispersed therein. : P3001; manufactured by Shokubai Kasei K.K.) conductive paint to form an antistatic layer with a thickness of 1 µm and 80% light transmittance. The surface resistance of the antistatic layer is 10*10 6 ohm. A polarizing plate (trade name: F1205; manufactured by Nitto Denko Corporation) was laminated and bonded thereon through an adhesive layer having a thickness of 25 µm so as to obtain a half-transmission polarizing plate. Also in this structure, the silver deposition film in an insulating state is sandwiched between the adhesive layer and the PET substrate.

[0051] In the same manner as in Example 1, the adhesion force (peel strength) between the antistatic layer and the PET substrate was measured to be 2N / 25mm through a 180-degree peel test at a peel rate of 0.3m / min.

[0052] Then, whe...

example 3

[0055] Coating a conductive filler (trade name: D600; D600; A conductive paint manufactured by Shinto Toryo K.K.) to form an antistatic layer with a thickness of 20 µm and a light transmittance of 70%. The surface resistance of the antistatic layer is 10*10 10 ohm. A polarizing plate (trade name: F1205; manufactured by Nitto Denko Corporation) was laminated and bonded thereon through an adhesive layer having a thickness of 25 µm so as to obtain a half-transmission polarizing plate. Also in this structure, the silver deposition film in an insulating state is sandwiched between the adhesive layer and the PET substrate.

[0056] In the same manner as in Example 1, the adhesion force (peel strength) between the antistatic layer and the PET substrate was measured to be 2N / 25mm through a 180-degree peel test at a peel rate of 0.3m / min.

[0057] Then, when this roll of product was unrolled through metal rollers, the charge did not exceed 500V.

[0058] When a protective plate on ...

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Abstract

A polarizer is bonded and laminated on a semi-transmitting reflective plate in which an antistatic layer of 10x1010 ohm or less in surface resistance is formed on the back surface of a light-transmitting high-molecular substrate having laminated thereon a semi-transmitting reflective layer composed of a light-transmitting deposited metal film or metal thin film, to thereby form a semi-transmitting polarizer.

Description

[0001] The present invention is based on Japanese Patent Nos. 2001-294930 and 2002-131517, which applications are incorporated herein by reference. technical field [0002] The present invention relates to a semi-transmissive reflective plate, a reflective plate, a semi-transmissive polarizer and a reflective polarizer for a liquid crystal display (hereinafter sometimes abbreviated as "LCD") and a liquid crystal display using them. Background technique [0003] LCDs are used in desktop computers, electronic watches, personal computers and digital processors, and demand for them is increasing dramatically. The growth in production of transflective displays for mobile phones and personal information terminals is therefore significant. [0004] In order to improve the display performance of the LCD, a semi-transmissive polarizing plate composed of a polarizer laminated with a half-transmitting reflector is usually placed on the back of the liquid crystal unit, using such a meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/08G02B1/10G02B1/16G02B5/30G02F1/1335
CPCG02F1/133528G02F2202/22G02F1/133553G02B5/3033G02F1/133555G02F1/1335
Inventor 原和孝
Owner NITTO DENKO CORP
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