POLARIZER, METHOD FOR MANUFACTURING THE SAME, AND LIQUID CRYSTAL DISPLAY DEVICE

To provide: a polarizer capable of improving durability and production efficiency; a method for manufacturing the same; and a liquid crystal display device including the polarizer.SOLUTION: A polarizer 51 is constituted of a first protective film 52, a polarizer 53 and a second protective film 54 in...

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Bibliographische Detailangaben
Hauptverfasser:	KUREMATSU MASAYUKI, TANAKA HIROBUMI, MURAKAMI TAKASHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADVERTISING CRYPTOGRAPHY DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING DISPLAY DISPLAYING EDUCATION FREQUENCY-CHANGING LABELS OR NAME-PLATES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICAL LOGIC ELEMENTS OPTICS PERFORMING OPERATIONS PHYSICS SEALS SIGNS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSPORTING
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Beschreibung
Zusammenfassung:	To provide: a polarizer capable of improving durability and production efficiency; a method for manufacturing the same; and a liquid crystal display device including the polarizer.SOLUTION: A polarizer 51 is constituted of a first protective film 52, a polarizer 53 and a second protective film 54 in this order from a visible side. The first protective film having super-birefringence in the surface thereof is a polyester film having a light transmittance of 50% or more at 380 nm; and the second protective film includes sugar ester, polyester represented by the formula (B1) or polyester represented by the formula (B2). (B1) B1-(G-A-)mG-B1(B-2)B2-(A-G-) nA-B2 [where, B1 represents C1-12 monocarboxylic acid; B2 represents C1-12 mono alcohol; G represents C2-12 divalent alcohol; and A represents C2-12 dibasic acid; and m and n represent a repetition number.]SELECTED DRAWING: Figure 1A 【課題】耐久性及び生産効率が向上した偏光板及びその製造方法と、それを具備した液晶表示装置を提供する。【解決手段】視認側から、第１の保護フィルム５２、偏光子５３、第２の保護フィルム５４の順で構成された偏光板５１であって、前記第１の保護フィルムが面内に超複屈折性を有し、３８０ｎｍでの光透過率が５０％以上であるポリエステルフィルムであり、かつ前記第２の保護フィルムが、糖エステル、式（Ｂ１）で表されるポリエステル、又は式（Ｂ２）で表されるポリエステルを含有することを特徴とする偏光板。（Ｂ１）Ｂ１−（Ｇ−Ａ−）ｍＧ−Ｂ１（Ｂ２）Ｂ２−（Ａ−Ｇ−）ｎＡ−Ｂ２〔式中、Ｂ１は炭素数１〜１２のモノカルボン酸、Ｂ２は炭素数１〜１２のモノアルコール、Ｇは炭素数２〜１２の２価のアルコールを表し、Ａは炭素数２〜１２の２塩基酸を表す。ｍ、ｎは繰り返し数を表す。〕【選択図】図１Ａ