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1. (WO2009057386) OPTICAL FILM, LIQUID CRYSTAL PANELS AND LIQUID CRYSTAL DISPLAYS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/057386    International Application No.:    PCT/JP2008/066227
Publication Date: 07.05.2009 International Filing Date: 09.09.2008
IPC:
G02B 5/30 (2006.01), B32B 7/02 (2006.01), B32B 27/00 (2006.01), B32B 27/30 (2006.01), G02F 1/1335 (2006.01), G02F 1/13363 (2006.01)
Applicants: NITTO DENKO CORPORATION [JP/JP]; 1-1-2, Shimohozumi, Ibaraki-shi, Osaka 5678680 (JP) (For All Designated States Except US).
MURAKAMI, Nao [JP/JP]; (JP) (For US Only).
KITAGAWA, Takeharu [JP/JP]; (JP) (For US Only).
HAYASHI, Daisuke [JP/JP]; (JP) (For US Only).
ISHIDA, Hideki [JP/JP]; (JP) (For US Only).
NISHIBE, Takeshi [JP/JP]; (JP) (For US Only)
Inventors: MURAKAMI, Nao; (JP).
KITAGAWA, Takeharu; (JP).
HAYASHI, Daisuke; (JP).
ISHIDA, Hideki; (JP).
NISHIBE, Takeshi; (JP)
Agent: MOMII, Takafumi; 7th Floor, Chiyoda Building Bekkan 6-1-2, Nishitemma, Kita-ku Osaka-shi, Osaka 5300047 (JP)
Priority Data:
2007-284784 01.11.2007 JP
Title (EN) OPTICAL FILM, LIQUID CRYSTAL PANELS AND LIQUID CRYSTAL DISPLAYS
(FR) FILM OPTIQUE, PANNEAUX À CRISTAUX LIQUIDES ET ÉCRANS À CRISTAUX LIQUIDES
(JA) 光学フィルム、液晶パネル、および液晶表示装置
Abstract: front page image
(EN)The invention provides an optical film which can realize a liquid crystal display enabling colorless neutral display in all azimuths and high contrast and which little suffers from knick defects; liquid crystal panels made by using the film; and liquid crystal displays made by using the panels. An optical film which comprises a transparent protective film, a polarizer, and a birefringent layer that is made of a cycloolefinic film and satisfies the relationship: 1 < Nz < 2 [wherein Nz=(nx-nz)/(nx-ny)] in this order and in which the polarizer and the birefringent layer are directly laminated with a polyvinyl alcohol-base adhesive containing a metal compound colloid between both.
(FR)L'invention concerne un film optique qui peut mettre en œuvre un écran à cristaux liquides activant un affichage neutre sans couleur dans tous les azimuts et un contraste élevé, et qui subit peu d'effets de knick, les panneaux à cristaux liquides étant fabriqués au moyen du film et les écrans à cristaux liquides étant fabriqués au moyen des panneaux. L'invention concerne également un film optique qui inclut un film protecteur transparent, un polariseur et une couche biréfringente faite d'un film cyclo-oléfinique et satisfaisant à la relation : 1 < Nz < 2 [où Nz = (nx - nz) / (nx - ny)] dans cet ordre, ledit polariseur et ladite couche biréfringente étant directement stratifiés avec un adhésif polyvinylique à base d'alcool contenant un colloïde composé métallique entre ces deux éléments.
(JA) 全方位において色つきのないニュートラルな表示と高コントラストを与える液晶表示装置を提供できる光学フィルムであってクニック欠陥を抑制した光学フィルム、該光学フィルムを用いた液晶パネル、および該液晶パネルを用いた液晶表示装置を提供する。  本発明の光学フィルムは、透明保護フィルム、偏光子、Nz=(nx-nz)/(nx-ny)で定義されるNz係数が1<Nz≦2の関係を有する環状オレフィン系フィルムからなる複屈折層をこの順に含み、該偏光子と該複屈折層が金属化合物コロイドを含有するポリビニルアルコール系接着剤を介して直接に積層されてなる。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)