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1. (CN101223463) Polarizing plate, liquid crystal display device, and process for producing hydrophilic polymer film

Office : China
Application Number: 200680026161.1 Application Date: 14.07.2006
Publication Number: 101223463 Publication Date: 16.07.2008
Grant Number: 100580487 Grant Date: 13.01.2010
Publication Kind : C
Prior PCT appl.: Application Number:PCTJP2006314025 ; Publication Number:2007010839 Click to see the data
IPC:
G02B 5/30
C08K 3/00
C08K 5/00
C08L 1/08
G02F 1/1335
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
5
Optical elements other than lenses
30
Polarising elements
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
3
Use of inorganic ingredients
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
K
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
5
Use of organic ingredients
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
1
Compositions of cellulose, modified cellulose, or cellulose derivatives
08
Cellulose derivatives
G PHYSICS
02
OPTICS
F
DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1
Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01
for the control of the intensity, phase, polarisation or colour
13
based on liquid crystals, e.g. single liquid crystal display cells
133
Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333
Constructional arrangements
1335
Structural association of optical devices, e.g. polarisers, reflectors, with the cell
CPC:
G02F 1/133528
G02F 1/1303
G02F 2201/50
Applicants: Konica Minolta Opto Inc.
柯尼卡美能达精密光学株式会社
Inventors: Umeda Hiroki
梅田博纪
Kuzuhara Noriyasu
葛原宪康
Agents: zhangbeng yuan
北京市柳沈律师事务所
Priority Data: 211148/2005 21.07.2005 JP
Title: (EN) Polarizing plate, liquid crystal display device, and process for producing hydrophilic polymer film
(ZH) 亲水性聚合物膜的制造方法
Abstract: front page image
(EN) This invention provides a polarizing plate, which can suppress a humidity-derived variation in color as observed from a direction oblique to a VA-mode liquid crystal display device, and a liquid crystal display device and a process for producing a hydrophilic polymer film. The polarizing plate comprises, as a polarizing plate protective film, a hydrophilic polymer film having an in-plane orientation property. The polarizing plate is characterized in that the polarizing plate per se has a transmittance of not less than 40% at 590 nm in an environment of 23 C and 55%RH, the crossed Nicol transmittance T2 under conditions of 23 C and 55%RH is not more than 0.03%, and the change in transmittance Delta T2 upon a change at 23 C in relative humidity from 20%RH to 80%RH satisfies a relationship represented by formula 0.05 x T2 < Delta T2 < 0.9 x T2.
(ZH)

本发明提供从倾斜方向观察VA方式的液晶显示装置时色调随湿度的变动得到抑制的偏振片、液晶显示装置以及亲水性聚合物膜的制造方法。其具有亲水性聚合物膜作为偏振片保护膜,所述亲水性聚合物膜具有面内取向性,其中,在23℃、55%RH的环境中,在590nm处,其本身的透过率是40%以上,在23℃、55%RH下的正交尼科尔棱镜透过率T2是0.03%以下,在23℃下从相对湿度20%RH变化到80%RH的透过率变化ΔT2满足0.05×T2<ΔT2<0.9×T2的关系。


Also published as:
KR1020080027845WO/2007/010839