JPS5730808A - Polarizing plate - Google Patents

Polarizing plate

Info

Publication number
JPS5730808A
JPS5730808A JP10600980A JP10600980A JPS5730808A JP S5730808 A JPS5730808 A JP S5730808A JP 10600980 A JP10600980 A JP 10600980A JP 10600980 A JP10600980 A JP 10600980A JP S5730808 A JPS5730808 A JP S5730808A
Authority
JP
Japan
Prior art keywords
film
polarizing plate
phase difference
difference value
polarizer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10600980A
Other languages
Japanese (ja)
Inventor
Kaoru Aizawa
Yozo Oishi
Tatsuya Kubozono
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Denko Corp
Original Assignee
Nitto Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nitto Electric Industrial Co Ltd filed Critical Nitto Electric Industrial Co Ltd
Priority to JP10600980A priority Critical patent/JPS5730808A/en
Priority to DE3129162A priority patent/DE3129162C2/en
Priority to US06/288,872 priority patent/US4427741A/en
Publication of JPS5730808A publication Critical patent/JPS5730808A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE:To obtain a polarizing plate which is suited for liquid crystal display devices or the like, has superior transparency, water resistance and heat resistance and has good dimensional stability by providing a thermoplastic polycarbonate film layer having a phase difference value less than a specific value on the surface of a polarizer. CONSTITUTION:A polarizing plate is formed by providing a polycarbonate film layer having <=500nm phase difference value delta expressed by the equation on one or both surfaces of a polarizer made by adsorbing and orienting I2 or dichromatic dye on a polyvinyl alcohol type film or a polyene type polarizer. The polycarbonate film is prepd. by adhering a cast film made by coating a soln. of thermoplastic polycarbonate in methylene chloride onto a release film to about 60mu dry thickness then drying the same by means of an urethane resin type adhesive agent or the like or adhering a commercially marketed film which has been heat-treated to have the phase difference value of the above-described conditions. In this way, the polarizing plate having moderate rigidity is obtained.
JP10600980A 1980-07-31 1980-07-31 Polarizing plate Pending JPS5730808A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP10600980A JPS5730808A (en) 1980-07-31 1980-07-31 Polarizing plate
DE3129162A DE3129162C2 (en) 1980-07-31 1981-07-23 Polarizing film
US06/288,872 US4427741A (en) 1980-07-31 1981-07-31 Polarizing film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10600980A JPS5730808A (en) 1980-07-31 1980-07-31 Polarizing plate

Publications (1)

Publication Number Publication Date
JPS5730808A true JPS5730808A (en) 1982-02-19

Family

ID=14422668

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10600980A Pending JPS5730808A (en) 1980-07-31 1980-07-31 Polarizing plate

Country Status (1)

Country Link
JP (1) JPS5730808A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6422538A (en) * 1987-07-17 1989-01-25 Mitsubishi Gas Chemical Co Manufacture of polycarbonate polarizing lens
EP0338575A2 (en) † 1988-04-22 1989-10-25 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Birefringent transparent film and process for producing the same
JPH0470601U (en) * 1990-10-30 1992-06-23
US5236635A (en) * 1991-03-11 1993-08-17 Fuji Photo Film Co., Ltd. Method for manufacturing retardation film
JPH10332938A (en) * 1998-06-05 1998-12-18 Kanegafuchi Chem Ind Co Ltd Transparent film having double refraction and its production

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6422538A (en) * 1987-07-17 1989-01-25 Mitsubishi Gas Chemical Co Manufacture of polycarbonate polarizing lens
JPH0794154B2 (en) * 1987-07-17 1995-10-11 三菱瓦斯化学株式会社 Method for manufacturing polarized polycarbonate lens
EP0338575A2 (en) † 1988-04-22 1989-10-25 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Birefringent transparent film and process for producing the same
EP0338575B2 (en) † 1988-04-22 2004-01-07 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Birefringent transparent film and process for producing the same
JPH0470601U (en) * 1990-10-30 1992-06-23
US5236635A (en) * 1991-03-11 1993-08-17 Fuji Photo Film Co., Ltd. Method for manufacturing retardation film
DE4207767C2 (en) * 1991-03-11 2001-12-13 Fuji Photo Film Co Ltd Process for making a retardation film
JPH10332938A (en) * 1998-06-05 1998-12-18 Kanegafuchi Chem Ind Co Ltd Transparent film having double refraction and its production

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