Title:
POLARIZING PLATE AND IPS MODE LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/082133
Kind Code:
A1
Abstract:
[Problem] To provide a polarizing plate which has excellent reworkability and is suitable for a portable terminal with a large screen such as a tablet and a liquid crystal display device such as a monitor. [Solution] A polarizing plate for IPS mode liquid crystal display devices, which is a resin film obtained by sequentially laminating a first protective film having a tensile elastic modulus at 23°C of 3,400-8,000 MPa, a polarizing film and a second protective film in this order, and wherein: the polarizing film has a thickness of 15 μm or less; the first protective film has an in-plane retardation at a wavelength of 590 nm (Re(590)) of 10 nm or less and an absolute value of the retardation in the thickness direction at a wavelength of 590 nm (Rth(590)) of 10 nm or less; and the thickness of the first protective film is larger than the thickness of the polarizing film.
Inventors:
MATSUMOTO TOSHIKAZU (JP)
Application Number:
PCT/JP2016/082576
Publication Date:
May 18, 2017
Filing Date:
November 02, 2016
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
G02B5/30; G02F1/1335; G02F1/13363
Domestic Patent References:
| WO2014109299A1 | 2014-07-17 | |||
| WO2015001980A1 | 2015-01-08 |
Foreign References:
| JP2015018162A | 2015-01-29 | |||
| JP2015152656A | 2015-08-24 | |||
| JP5648494B2 | 2015-01-07 | |||
| JP5332599B2 | 2013-11-06 | |||
| JP2014240905A | 2014-12-25 |
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (JP)
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