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Double-sided polarizing plate and optical device including same

一种偏振片、偏振膜的技术，应用在在两侧具有保护膜的偏振片和包括该偏振片的光学器件领域，能够解决劣化偏振片耐久性、降低偏振片光学性能等问题，达到简化制造工艺的效果

Active Publication Date: 2013-09-18
SHANJIN OPTOELECTRONICS (GUANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the low adhesive force of the adhesive layer deteriorates the durability of the polarizer, thereby lowering the optical performance of the polarizer

Method used

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  • Double-sided polarizing plate and optical device including same
  • Double-sided polarizing plate and optical device including same

Examples

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preparation example Construction

[0078] In the preparation of polyurethane resins, other polyols and / or other chain extenders may be added for the reaction in addition to the above-mentioned components.

[0079] Examples of other polyols may include polyols having three or more hydroxyl groups, for example, sorbitol, glycerin, trimethylolethane, trimethylolpropane, pentaerythritol, and the like.

[0080] Examples of chain extenders may include diols such as ethylene glycol, diethylene glycol, triethylene glycol, 1,3-propanediol, 1,3-butanediol, 1,4-butanediol, neopentyl Glycols, pentanediol, 1,6-hexanediol, and propylene glycol, etc.; aliphatic diamines, such as ethylenediamine, propylenediamine, hexamethylenediamine, 1,4-butylenediamine, and aminoethylalkanolamine and the like; alicyclic diamines such as isophoronediamine and 4,4'-dicyclohexylmethanediamine and the like; and aromatic diamines such as xylylenediamine and toluenediamine and the like.

[0081] In addition, neutralizing agents may be used when ...

preparation Embodiment 1

[0120] Poly(N-cyclohexylmaleimide-co-methyl methacrylate) resin, styrene-maleic anhydride copolymer resin and phenoxy resin were uniformly mixed in a weight ratio of 100:2.5:5 The resin composition is supplied to The extruder, which was replaced with nitrogen from the raw material hopper to the extruder, was melted at 250° C. to obtain raw material pellets.

[0121] As a phenoxy-based resin, using Co., Ltd. produced PKFE (Mw=60,000, Mn=16,000, Tg=98°C); Dylaeck332 containing 85wt% styrene and 15wt% maleic anhydride was used as the styrene-maleic anhydride copolymer resin; and the Poly(N-cyclohexylmaleimide-co-methyl methacrylate) resin having an N-cyclohexylmaleimide content of 6.5 wt% as measured by NMR analysis.

[0122] The obtained raw material pellets were dried under vacuum, melted at 260° C. using an extruder and passed through a coat hanger type T-die, and then passed through a casting roll coated with chrome and a drying roll to prepare a film having a thickness o...

preparation Embodiment 2

[0128] (1) Adhesive composition A

[0129] 5 parts by weight of CPI100P (Sanapro) as a cationic initiator was added to 100 parts by weight of the resin composition, which was obtained by adding 25 wt% of 3,4-epoxycyclohexylmethyl-3,4 '-Epoxy cyclohexyl carboxylate (Celloxide 2021P from Dicel Chemical Industries Co., Ltd.), 25 wt% of 1,4-cyclohexanedimethanol diglycidyl ether, 35 wt% of 3-ethyl-3-[(3-ethyl Oxetane-3-yl)methoxymethyl]oxetane (AronOxcetaneDOX221, Toagosei Co., Ltd.) and 15 wt% of 3-ethyl-3-hydroxymethyloxetane (AronOxcetaneOXA, Toagosei Co., Ltd.), thus preparing adhesive composition A for polarizers.

[0130] (2) Adhesive composition B

[0131] The CPI100P (Sanapro) of 5 weight parts as cationic initiator and the vinyltriethoxysilane of 5 weight parts are joined in the resin composition of 100 weight parts, and described resin composition is by adding 25wt% 3, 4-epoxycyclohexylmethyl-3,4'-epoxycyclohexylcarboxylate (Celloxide 2021P from Dicel Chemical Industr...

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Abstract

The present invention relates to a double-sided polarizing plate and an optical device including the same, and the double-sided polarizing plate comprises: a polarizer; a first adhesive layer which is formed on one side of the polarizer; a second adhesive layer which is formed on the other side of the polarizer; a first transparent film which is formed on the first adhesive layer; and a second transparent film which is formed on the second adhesive layer, wherein the first adhesive layer and the second adhesive layer are formed by active energy ray-curable adhesives, and the thickness of the first adhesive layer is 0.1[mu]m to 3[mu]m. The present invention also relates to an optical device including the same.

Description

technical field [0001] The present invention relates to a double-sided polarizing plate and an optical device including the polarizing plate, and more particularly, the present invention relates to a double-sided polarizing plate having an adhesive layer on both sides thereof and an optical device including the polarizing plate. Side polarizers can be cured by shining light on them only once, simplifying their manufacturing process, and have been developed to give their adhesive layers superior adhesion on non-irradiated surfaces. Background technique [0002] A polarizer is a film capable of converting natural light into polarized light having a specific vibration direction, and is used in various display devices such as liquid crystal displays and organic light emitting devices. [0003] The polarizer includes a polarizing film made of polyvinyl alcohol (PVA) resin dyed with a dichroic dye or iodine and a protective film stacked on one or both surfaces of the polarizing fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30C09J163/00
CPCG02B1/105C09J4/00G02B5/3033Y10T428/25Y10T428/24975Y10T428/2809G02B1/14G02B5/305C09J4/06C09J2463/00C09J5/00C09J163/00
Inventor 徐银美沈花燮闵智眩李南贞罗钧日朴俊昱许恩树林伊琅
Owner SHANJIN OPTOELECTRONICS (GUANGZHOU) CO LTD
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