TWI227795B

TWI227795B - Polarizing plate unit

Info

Publication number: TWI227795B
Application number: TW88110904A
Authority: TW
Inventors: Koichi Nagayasu; Masato Takada; Noriki Tachibana
Original assignee: Konishiroku Photo Ind
Priority date: 1998-07-07
Filing date: 1999-06-28
Publication date: 2005-02-11

Abstract

This invention is to provide a polarizing plate unit, in which a protective film is stuck on one surface of a polarizing plate provided with a polarizer and protective films on the both surface of the polarizer and a separate film is stuck on the opposite surface of the polarizing plate and a one-directionally molded polyester film is used for the protection film and/or the separate film. The protective film and the separate film for a polarizing plate are excellent in optical properties, small in optical anisotropy, interference unevenness or the like and excellent in workability in the defect detection of the polarizing plate.

Description

1227795 A7 _____B7 _ 五、發明説明（1 ) 【發明所屬之技術範圍】 (請先閱讀背面之注意事項再填寫本頁) 本發明係有關具有偏光板及分隔薄膜之偏光板單元，詳細而言係有關具有第1之分隔薄膜和第2之分隔薄膜的偏光板單元。【以往之技術】偏光板係通常以具有偏光機能之二色性染料加以著色，將單軸定向之聚乙烯醇薄膜（偏光薄膜），以第1及第 2之保護薄膜的2枚之纖維素三醋酸酯（T A C )薄膜，由兩側呈三明治狀，態而成者。如此製成之偏光板係則於表面（剝離後亦有可能再度加以貼上）會設置較容易剝離的分隔薄膜之形態加以出貨。然後，於偏光板之出貨前，或偏光板進貨之後，進行偏光板之製品檢查。做爲製品檢查，可有正交偏光板，以全黑暗視之的時候，具有調查有無光線漏出之缺陷部或數目的方法。經濟部智慧財產局員工消費合作社印製以往，於此分隔薄膜中，主要係使用雙軸定向之聚對苯二甲酸乙二醇酯薄膜。使用此雙軸定向聚對苯二甲酸乙二醇酯薄膜之分隔薄膜時，正交偏光板之時，正常之部分不會成爲全黑暗，而干涉的斑紋會強烈的顯現，對於目視檢查等之檢查部分有不妥之處。爲此，存在於檢查之時，剝去分隔薄膜，檢查後爲了偏光板之保護，必需有進行再度貼上分隔薄膜之繁複之工程之問題。【發明所欲解決之問題】 ^氏張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ^ -4 - 1227795 A7 B7 五、發明説明（2 ) (請先聞讀背面之注意事項再填寫本頁) 在此，本發明之課題係提供可保持貼著之狀態加以檢查，對於偏光板之缺點檢出之作業性上優異，具分隔薄膜之偏光板單元者。又，本發明之課題係於偏光板之檢查時，減少繁雜之工程或增加工程設計之自由度。又，本發明之課題係提供光學向異性、干涉斑紋等少光學特性優異之分隔薄膜者。又，做爲分隔薄膜，使用無干涉斑紋之薄膜之時，做爲無干涉斑紋的薄膜，可列舉T A C、鑄塑聚碳酸酯（ PC)、聚醚磺（PES)等。此等成本爲高之故，需求成本便宜，光學性特性優異，容易處理之薄膜。【發明之槪要】 1.包含具有第1之面和第2之面的偏光薄膜設於前述偏光薄膜之第1面的第1保護薄膜，設於前述偏光薄膜之第2面的第2保護薄膜，設於前述第1之保護薄膜上的第1之分隔薄膜，及經濟部智慧財產局員工消費合作社印製設於前述第2之保護薄膜上的第2之分隔薄膜的偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜之配向角爲8 0度以上。 2 .記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係於1方向延伸1 · 〇.至 2 · 5倍，於正交於此之方向延伸2 · 5至7 · 0倍的樹脂薄膜者。本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -5- 1227795 A7 ____ B7____ 五、發明説明（3) (請先閲讀背面之注意事項再填寫本頁) 3 ·記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜之縱方向之折射率和橫方向之折射率差的絕對値爲〇 · 〇 2以上者。 4 .記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜之2 3°C、2 5%RH之表面比阻抗爲1 X 1 〇 1 2 Ω /□以下。 5 ·記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係於（Tm - 1 5 0.)至（ T m — 2 5 ) °C之溫度範圍加以熱固定之樹脂薄膜。 6 ·記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係延遲爲5 0 nm以上，參差爲50nm以下者。 7 ·記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係8 0 //m換算之光霧爲0 · 6 %以下者。 8 ·記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係8 0 //m換算之撕裂強度爲經濟部智慧財產局員工消費合作社印製 4〇g以上。 9 ·記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係拉伸強度爲1 3 k g /m m 2 以上。 1 0 ·記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係動摩擦係數爲0 · 4 0以下0 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -6 - A7 1227795 B7 五、發明説明（4 ) 1 1 ·記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係兩端和中央部之配向角之 (請先閲讀背面之注意事項再填寫本頁) 差爲0至1 0度者。 1 2 .記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係8 0°C、3 0分處理之熱收縮率爲縱橫方向同爲5 %以下。 1 3 .記載於1之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係選自至少一種聚丙烯薄膜、聚苯乙烯薄膜、聚乙儲薄膜、聚酯薄膜。 1 4 .記載於2之偏光板單元中，前述第1之分隔薄膜及/或前述第2之分隔薄膜係選自至少一種聚丙烯薄膜、聚苯乙烯薄膜、聚乙烯薄膜、聚酯薄膜。記述其他之實施形態。 ^ 於將偏光子及該兩面，以保護薄膜加以被覆之偏光板之一方之面，貼合保護薄膜、於相反面貼合分隔薄膜，該保護膜及/或分隔薄膜則僅於一方向延伸製膜的聚酯薄膜的表面保護之偏光板。經濟部智慧財產局員工消費合作社印製於將偏光子及該兩面，以保護薄膜加以被覆之偏光板之一方之面，貼合保護薄膜、於相反面貼合分隔薄膜’該保護膜及/或分隔薄膜則一方向之延伸倍率爲1 · 〇至 2 · 0倍、呈正交與此之方向之延伸倍率爲2 · 5至 7 · 0倍雙軸定向製模之聚酯薄膜之表面保護之偏光板。於將偏光子及該兩面，以保護薄膜加以被覆之偏光板之一方之面，貼合保護薄膜、於相反面貼合分隔薄膜’該本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 1227795 A7 ___ B7 五、發明説明（5) 保護膜及/或分隔薄膜則呈縱方向之延伸倍率1 · 0至 2 · 0倍、橫方向之延伸倍率2 . 5至7 · 0倍雙軸定向 (請先閱讀背面之注意事項再填寫本頁) 製模之聚酯薄膜之表面保護之偏光板。於將偏光子及該兩面，以保護薄膜加以被覆之偏光板之一方之面，貼合保護薄膜、於相反面貼合分隔薄膜，該保護膜及/或分隔薄膜則橫方向之折射率（η T D )和縱方向之折射率（η M D )之差的絕對値| η T D — η M D |爲〇· Ο 3以上的聚酯薄膜之表面保護之偏光板。保護薄膜及/或分隔薄膜之2 3 °C、2 5 % R Η的表面比阻抗爲1 X 1 0 1 2 Ω /□以下之上述表面保護的偏光板。於將偏光子及該兩面，以保護薄膜加以被覆之偏光板之一方之面，貼合保護薄膜、於相反面貼合分隔薄膜，該保護膜及/或分隔薄膜則僅向一方向定向製膜之聚酯薄膜之表面保護之偏光板。經濟部智慧財產局員工消費合作社印製上述薄膜係得知較過去使用之雙軸定向聚酯薄膜，無光學之向異性、在於光學特性上優異者。結果，做爲偏光板之第3之保護薄膜及/或分隔薄膜加以使用之時，於正交偏光板之狀態（交錯狀態）中，無在於全黑暗之光漏，又，由於光干涉斑紋之產生極少之故，無需卸下第3之保護薄膜或分隔薄膜，可在貼著之狀態下加以檢查，在於製品檢查時之亮點異物故障之檢查等之作業性非常優_異者。【發明之實施形態】本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） -8 - 1227795 A7 B7 " 一五、發明説明（6 ) 以下，對於本發明之詳細說明。 (請先閲讀背面之注意事項再填寫本頁) 將有關本發明之偏光單元之構成例使用圖1加以說明。有關於本發明之偏光板單元係非限定於圖1所示之構成者。圖1所示之構成係具有第1之分隔薄膜和第2之分隔薄膜的偏光板單元之一例。圖1偏光板單元1 6係於偏光板1 4之一方面，經由黏著層1 1 ，貼著第1之分隔薄膜 1 0，於偏光板1 4之另一方之面，經由黏著層8 ’貼著第2之分隔薄膜1 2。黏著層8、1 2之黏著力係較弱之故，可剝離第1之分隔薄膜1 0及第2之分隔薄膜1 2。將偏光板1 4之構成述於以下。於偏光薄膜5之一方之面，較黏著層8 ，經由黏著力強之黏著層4，貼著第1 之保護薄膜3 ，於偏光板1 3之另一方之面，偏光薄膜5 之另一方之面，經由接著層6 ，貼著第2之保護薄膜7加以構成。經濟部智慧財產局員工消費合作社印製第1之分隔薄膜1 0設於將偏光板貼合於液晶胞面之相反側之面時，黏著層1 1係剝離第1之分隔薄膜1 0之時，不殘留於第1之保護薄膜3上者爲佳。第1之保護薄膜3和第2之保護薄膜7係同材質或厚度者爲佳。又，於第1之保護薄膜3或第2之保護薄膜7 上，更設置帶電防止層或保護層等，於該上設置接著層或黏著層亦可。又，於第1之分隔薄膜1 0上或第2之分隔薄膜1 2上，設置帶電防止層或保護層等亦可。又，第1 之分隔薄膜1 0或第2之分隔薄膜1 2剝離之後，呈留下本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -9 - 經濟部智慧財產局員工消費合作社印製 1227795 A7 B7 _ 五、發明説明（7 ) 黏著層8之構成亦可。此時，將黏著層8呈黏著層（例如第2之分隔薄膜側）和接著層（例如第2之保護薄膜側）之2層構成，將黏著層8之材料剝離之後，呈可殘留之材料。分隔薄膜剝離之後留下黏著層之時，經由殘留黏著層，可貼著於液晶胞。然而’剝離之後’殘留黏著層之時，接者力於J I S 2〇237記載之方法中，爲4〇0〜1〇〇〇§/ 2 5 m m者佳，於剝離之後，於不留下黏著層之時，接著力爲1 0〜1 0 0 g/2 5mm者爲佳。不設置接著層4、6，將第1之保護薄膜3或第2之保護薄膜7以分層地設於偏光薄膜5上，經由塗佈加以設置亦可。又，將第1之分隔薄膜1 〇以分層地設於第1之保護薄膜3，或經由塗佈加以設置亦可。文，將第2之分隔薄膜1 2以分層地設於第2之保護薄膜7，或經由塗佈加以設置亦可。又，不設置黏著層，設置分隔薄膜亦可。此時較佳之接著力亦如上述。對於各薄膜或各層加以說明。分隔薄膜係滿足配向角爲8 0度以上條件者。又，配向角爲8 0度以上，9 0度以下者爲佳，配向角爲8 2度以上’ 9 0度以下者爲更佳。配向角係將於薄膜之延伸及熱固疋時結晶化固定之聚合物分子之排列，以經由該偏光性測定之數値，於2枚之偏光板間置入試料，測定透過光之強度之方法或經由各種機器，可容易地加以測定。此配向角係以一般製膜之聚酯薄膜等之樹脂薄膜中央本紙張尺度適用中國國家標準（CNS ) A4規格（210Χ：297公釐) ' ' — ----------0-------、訂------^91 (請先閱讀背面之注意事項再填寫本頁) -10- 1227795 A7 ___B7 五、發明説明（8 ) (請先閱讀背面之注意事項再填寫本頁) 部和端部之差爲最大，此差爲小時仍做爲本發明之分隔薄膜之樹脂薄膜者爲佳。於本發明中，分隔薄膜係薄膜之兩端和中央部之配向角之差爲0〜1 〇度者爲佳，更佳爲〇〜5度，更甚者爲0〜3度。配向角之測定係如以下進行。製膜後，將薄膜使用「自動複折射計」（新王子製紙公司製K〇Β ϋ R A - 2 1 D Η型），於測定波長： 5 9 0 n m，於3 6 0度測定3 6 0點，求得配向角（光學主軸之傾斜：incline )。做爲本發明之分隔薄膜使用之樹脂薄膜係含有至少一種聚丙烯薄膜、聚苯乙烯薄膜、聚乙烯薄膜、聚酯薄膜者爲佳。或至少一種聚丙烯薄膜、聚苯乙烯薄膜、聚乙烯薄膜、聚酯薄膜亦可。尤其，含有聚酯之樹脂薄膜，尤其具有5 0 %以上聚酯成分的薄膜爲佳。又，可爲聚酯薄膜本身亦可◦構成聚酯薄膜之聚酯係非特別加以限定，以具有將二碳酸成分和二醇成分爲主要構成成分的薄膜形成性的聚酯者爲佳。經濟部智慧財產局員工消費合作社印製做爲主要構成成分之二碳酸成分，可列舉對苯二甲酸，間苯二甲酸、鄰苯二甲酸、2 — 6萘二碳酸、2 — 7萘二碳酸、二苯硕二碳酸、二苯醚二碳酸，二苯乙院一碳酸、環己烷二碳酸，二苯二碳酸，二苯硫醚二碳酸，二苯酮二碳酸，苯茚滿二碳酸等。又，做爲二醇成分，乙二醇、丙二醇、四甲基二醇，環己二醇，2、2 —雙（4 —羥苯基）丙烷、2、2 —雙（4 一羥乙氧苯基）丙烷’雙（4 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -11 - 1227795 A7 B7 五、發明説明（9 ) 一羥苯基）磺，雙苯基芴羥氧基乙醚，二乙二醇、新戊二醇、對二苯酚、環己二醇等。 (請先閱讀背面之注意事項再填寫本頁) 將此等呈主要之構成成分的聚酯中，自透明性、機械強度、尺寸安定性等之點，將做爲二碳酸成分，對苯二甲酸及2 - 6萘二碳酸，做爲二醇成分乙二醇及/或二乙二醇爲主要構成成分的聚酯爲佳。其中，以聚對苯二甲酸乙二醇酯或苯乙烯2 - 6萘酯爲主要構成成分的聚酯、或對苯二甲酸和2 — 6萘二碳酸和乙二醇所成之共聚聚酯，及此等之聚酯之二種以上之混合物爲主要構成成分的聚酯爲佳。對於聚酯，含有7 0重量％以上之對二苯乙烯單元或乙烯2 - 6萘單元時，可得於透明性、機械性強度、尺寸安定性等有高度優異性之薄膜。 ^ 構成本發明之聚酯薄膜的聚酯，係不阻礙本發明效果之範圍下，再共聚合其他之共聚成分亦可，混合其他之聚酯亦可。就此等之例而言，先列舉二碳酸成分或二醇成本，或此等所成聚酯。經濟部智慧財產局員工消費合作社印製構成本發明之聚酯薄膜之聚酯中，共聚具有硫基之芳香族二碳酸或該酯形成性衍生物，具有聚烯氧基之二碳酸或該酯形成性衍生物，具有聚烯氧基之二醇等即可。於聚酯之聚合反應性或薄膜之透明性之點，以5 -鈉磺基異丁酸2 5 -鈉磺基對苯二甲酸、4 一鈉磺基異丁酸.、4 一鈉磺基- 2 ，6 —萘二酸及將此等之鈉以其他之金屬（例如鉀、鋰等）或銨鹽、鐵鹽等置換之化合物或該酯形成性衍本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ' " 一 -12- 1227795 A7 B7 五、發明説明（10) (請先閱讀背面之注意事項再填寫本頁) 生物，聚乙二醇、聚四甲二醇，聚乙二醇一聚丙二醇共聚物及相當氧化此等兩端之羥基的羧基之化合物爲佳。又，提升薄膜之耐熱性之目的中，共聚具有雙酚系共聚物、萘環或環己烷的化合物。使用於本發明之聚酯中，含有氧化防止劑亦可。尤其於聚酯包含聚烯氧基的化合物效果最爲顯著。含有氧化防止劑係非對該種類加以特別限定，而使用各種之氧化防止劑，但例如可列舉阻酚系化合物，磷酸酯系化合物，硫醚系化合物等之氧化防止劑。其中，又以阻酚系化合物之氧化防止劑爲佳。氧化防止劑之含量係對聚酯爲〇 . 〇 1至〇.2重量％，較佳爲0 . 1至0 . 5%。本發明之聚酯薄膜中，依需要可附於易滑性。做爲易滑附予性手段，雖未特別加以限定，於聚酯附加'非活性無機粒子的外部粒子添加方法，於聚酯之合成時，析出添加觸媒的內部粒子析出方法，或將界面活性劑等塗佈於薄膜表面之方法等。經濟部智慧財產局員工消費合作社印製本發明之聚酯薄膜之原料之聚酯之合成方法，係非特別加以限定，可根據以往公知之聚酯之製造方法加以製造。例如可使用將二碳酸成分與二醇成分直接酯化反應的直接酯化法，首先做爲二碳酸成分使用二烷基酯，將此與二醇成分進行酯交換反應，將此於減壓下加熱，經由除去剩餘之二醇成分加以聚合之酯交換法。此時依需要，使用酯交換觸媒或聚合反應觸媒，或可添加耐熱安定劑。又，於合成時之各過程，添加著色防止劑、氧化防止劑、結晶核本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -13- 1227795 A7 B7 五、發明説明（n) (請先閱讀背面之注意事項再填寫本頁) 劑、滑劑、安定劑、保護防止劑、紫外線吸引劑、黏度調節劑、消泡劑、透明化劑、帶電防止劑、p h調整劑、染料、顏料亦可。 <本發明之玻璃轉移溫度T g、結晶化溫度T c及融點 T m之定義> 將1 0 m g之薄膜或錠，每分3 0 0 m 1之氮氣流中 ’於3 〇〇 °C熔融，馬上以液態氮加以急冷。將此急冷樣本’設定於示差掃猫型熱量計（理學電器公司製’ DSC8320型），每分l〇ml之氮氣流中，以每分 1 〇 °C之昇溫速度加以昇溫，檢出T a、丁 c及T m。 T g係偏倚基線開始之溫度時，新回到基線之溫度的平均値’ T c係該發熱尖峰之尖峰溫度，T m係呈該吸熱尖峰之尖峰溫度。測定開始溫度係呈較測定之T g低5 0 °C以上之溫度。本發明之分隔薄膜係一方向之延伸倍率爲1 . 〇〜經濟部智慧財產局員工消費合作社印製 2 · 5倍，正交此方向之延伸倍率則呈2 · 5〜7 . 0倍延伸製膜之樹脂薄膜則較佳◦更佳係延伸製模呈縱方向之延伸倍率1 . 0〜2 · 5，橫方向之延伸倍率2 . 5〜 7 . 0倍的樹脂薄膜。較佳爲係一方向之延伸倍率爲1 · 0〜1 . 8倍，正交此方向之延伸倍率則呈3 · 5〜6 · 0倍延伸製膜之樹脂薄膜。更佳係延伸製模呈縱方向之延伸倍率1 .. 0〜 1 · 8，橫方向之延伸倍率3 · 5〜6 · 〇倍的樹脂薄膜本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） _ 14- 1227795 A7 B7 五、發明説明（1公較佳爲係一方向之延伸倍率爲1 · 〇〜1 · 1倍，正交此方向之延伸倍率則呈3 · 5〜6 · 〇倍延伸製膜之樹脂薄膜。更佳係延伸製模呈縱方向之延伸倍率1 · 〇〜 1 · 1 ，橫方向之延伸倍率3 · 5〜6 · 〇倍的樹脂薄膜 .〇上述樹脂薄膜，特別較佳者係爲得聚酯薄膜，可以以往公知之方法進行，雖未特別加以限定，可以下之方法加以進行。此時，將薄膜之製膜方向（長度方向），稱與橫方向與薄膜之製模方向的直角方向。以下，記述聚酯薄膜時之製造方法之一例。首先，將原料之聚酯成型呈錠狀，熱風乾燥或真空乾燥之後，熔融按壓，經由T鑄造按出薄片狀，經由靜電施加法等，密著於冷卻鼓，冷卻固化，得未延伸薄'片。接著，將所得未延伸薄片，介由複數之輥群及/或紅外線加熱器等之加熱裝置，於自聚酯之玻璃轉移溫度（T g )至 T g + 1 0 〇 °c之範圍內加以加熱，一段或多段縱延伸之方法。本發明中，爲縱方向之延伸倍率係1 · 0至2 . 0倍爲佳。更且較佳爲1 · 0至1 . 8倍。更且較佳爲1 · 0 至1 · 1倍。接著，將如上述所述所得延伸於縱方向的聚酯薄膜，自T g T至T m - 2 0 °C之溫度範圍內，橫延伸接著加以熱固定。於本發明中，橫方向之延伸倍率係2 · 5至 7 · 0倍者較佳，更佳爲3 · 0至6 · 0倍，更甚者爲本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 0-------1T------^91 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 -15· A7 1227795 B7 五、發明説明（13) 4 . 〇至6 .〇倍。 (請先聞讀背面之注意事項再填寫本頁) 橫延伸之時，以分割呈2個以上的延伸範圍，將溫度差以1至5 0 °C之範圍，漸漸昇溫地呈橫延伸時，可減低寬方向之物性分布，因此爲佳。更且橫延伸之後，將薄膜於該最終橫延伸溫度以下，在於T g - 4 0 °C以上之範圍，保持0 · 0 1至4分間時，寬度方向之物性分布則更加以減低者爲佳。熱固定溫度較佳爲T m - 1 4 0 °C〜T m —6 〇°C之溫度範圍，更佳爲Tm — 1 3 Ot：〜Tm — 7〇°C之溫度範圍加以熱固定。此時，以分割2個以上之範圍，將溫度差於1至1 0 0 °C之範圍，順序昇溫地加以熱固定者爲佳。經濟部智慧財產局員工消費合作社印製熱固定之薄膜係通常冷卻至T g以下，將薄膜兩端之夾把持部分加以切割捲取。此時，最終熱固定溫度以下，於T g以上之溫度範圍，於橫方向及/或縱方向，進行〇.1〜1 0 %驰緩處理者爲佳。又，冷卻係將自最終固定溫度至T g，以每秒1 0 0 °c以下之冷卻速度加以徐冷較佳。冷卻、驰緩處理之手段係無特別之限定，可以以往公知之手段加以進行，尤其以複數之溫度範圍順序冷卻，雖進行此等之處理，在於薄膜之尺寸安定性提升上爲較佳者。然而，冷卻速度係將最終熱固定溫度呈T 1 ，薄膜自最終熱固定溫度到達T g的時間呈t之時，求得（T 1 一 T g ) / t之値。此等熱固定條件，冷卻、弛緩處理條件之最佳條件係會因薄膜構成之聚酯而不同之故，測定所得雙軸定向薄膜本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） -16- 1227795 A7 B7____ 五、發明説明（14) 之物性，具有較佳特性地，經由適切調整加以決定爲佳。 (請先閱讀背面之注意事項再填寫本頁) 又，於上述薄膜製造時，於延伸之前及/或後’塗設帶電防止層，易滑性層，接著層、阻隔層等之機能性層亦可。此時，將日珥放電處理、藥液處理等之各種表面處理依需要進行處理◦切斷之薄膜兩端之夾把持部分係粉碎處理後，或對應需要，進行造粒處理或解聚合、再聚合等之處理後，做爲同樣品種之薄膜用原料’或做爲不问之p口種之薄膜用原料，再利用亦可。以上之製膜之方法係可適用於聚酯以外者。又，分隔薄膜係有關於面方向之折射率’縱方向之折射率（η M D )和橫方向之折射率（η T D )之差的絕對値| nTD — nMD |爲〇·〇2以上。較佳爲〇 · 〇3 以上，更佳爲0·04以上，更且爲0·05以上。又，分隔薄膜係8 0 °C、3 0分處理之熱收縮’皆於縱橫方向，爲5 %以下者爲佳。較佳爲縱橫方向皆爲2 % 以下，更佳爲縱橫方向，爲1 %以下。經濟部智慧財產局員工消費合作社印製分隔薄膜係延遲爲5 0 nm以上者較佳，更且參差爲 5 0 nm以下者爲佳。又，延遲爲5 0〜5 0 〇 n m爲佳。更佳者爲1 0 0〜4 0 0 nm。無參差者爲佳，實質上爲5 0 nm以下，較佳爲4 0 nm以下。延遲係使用自動複折射計K〇B R A — 2 1 D Η ( K S系統股份有限公司製），於2 3 °C、5 5 % R Η之條件下加以測定。測定1 0處，顯示該平均値。參差係以最大値和最小値之差加以顯示。本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） -17- 1227795 A7 B7 五、發明説明（15) 又，分隔薄膜係換算呈8 0 //m之厚度的光霧値爲〇· 6%以下爲佳。更且較佳爲〇 · 5%以下，更佳者爲 (請先閱讀背面之注意事項再填寫本頁) 0 · 4%以下。更甚者爲〇 · 3%以下。光霧値係愈低者爲佳，0 . 1 %程度爲下限値。光霧係使用光霧計（例如1 〇〇 1 D P型日本電色工業股份有限公司製）加以測定。令該測定結果換算呈薄膜厚度爲80時之光霧値。分隔薄膜係換算呈8 0 # m之厚度的撕裂強度爲4〇 g以上者爲佳。較佳係4 5 g以上，更佳係5 0 g以上。撕裂強度之値係愈大愈好，但由製造條件等視之，1 0 0 g程度爲其上限値。撕裂強度係將切成5 0 m m X 6 4 m m之樣本，根據 1 S〇6 3 8 3 / 2 — 1 9 8 3之規格，求得撕裂強度所需之加重。測定薄膜之流動延伸方向，和與此垂直之方向，將此等之平均値取得撕裂強度。由此測定結果，換算呈薄膜之厚度爲8 0 // m時之撕裂強度。經濟部智慧財產局員工消費合作社印製分隔薄膜係拉伸強度爲1 3 k g /m m 2者爲佳。更佳者係13·5kg/mm2、更甚者爲14kg/mm2爲佳。而以1 5 k g /m m 2最佳。拉伸強度之値則愈大愈好，但由製造條件上以5 0 k g /m m 2爲其上限値。拉伸強度係將切成5 0 m m x 6 4 m m之樣本，根據 I S〇6 3 8 3/2 - 1 9 8 3之規格，求得撕裂強度所需之加重。測定薄膜之流動延伸方向，和與此垂直之方向，將此等之平均値取得拉伸強度。由此測定結果，換算呈本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -18- 1227795 A7 B7 五、發明説明（16) 薄膜之厚度爲8 0 A m時之拉伸強度。 (請先聞讀背面之注意事項再填寫本頁) 又，分隔薄膜係動摩擦係數爲0 · 4 0以下者爲佳。較佳爲0 · 3 5以1下，更佳爲0 · 3 0以下。最佳爲〇· 2 5以下。動摩擦係數之値雖然愈低愈好，但在製造條件等之因素下，0 · 1 0程度爲其下限値。動摩擦係數係根據J I S或A S T Μ規定之方法，使用鋼球容易地加以測定。本發明之分隔薄膜之厚度係以1 0至1 0 0 //m爲佳，尤以20至60//m較佳，更佳者係20至5〇//m。使用於本發明之分隔薄膜的薄帶，尤其是聚酯薄膜之 T g係5 0 °C以上者爲佳，更佳者係6 0 °C以上者爲佳。 T g係以示差掃瞄熱量計測定之基線開始偏倚之溫度時，做爲新回到基線之溫度的平均値加以求得。· ’ 於本發明中，分隔薄膜之表面係具有導電性都爲佳，表面比阻抗（23t：、25%RH)爲 lxl〇12Q/D 以下者爲佳。更佳者係1 x 1 0 1 1 Ω /□以下，更佳者係 ΙΧΙΟ^Ω/□以下。經濟部智慧財產局員工消費合作社印製於本發明中，附予導電性之部分雖未特別加以限定，經由含有吸濕性物質或導電性物質加以形成。做爲附予導電性之物質，例如可列舉界面治性劑、導電性聚合物、無機金屬氧化物。做爲可使用界面活性劑，可爲陽離子性、陰離子性、兩性及無離子性之任一者。做爲陽離子性界面活性劑，例如含有烷基碳酸鹽、烷基磺酸鹽、烷基苯磺酸鹽、烷基萘本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐) -19- A7 1227795 B7 ________ 五、發明説明（17) 磺酸鹽、烷基硫酸酯類、烷基磷酸酯類、N —醯基一 N -烷基牛磺酸、磺基琥珀酸酯類、磺基烷基聚乙烯氧基烷基苯酯類、聚乙烯氧基烷基磷酸酯類等之羧基、磺酸、磷基、硫酸酯基、磷酸酯基等之酸性基者爲佳。做爲陰離子性界面活性劑，例如包含烷基胺鹽類、脂肪族或芳香族第4級銨鹽類、吡啶鑰、咪唑等之雜環第4 銨鹽類、及脂肪族或雜環的的鱗或鎏鹽類等爲佳。做爲兩性界面活性劑，例如胺基酸類、胺基烷基磺酸類、胺基烷基硫酸或磷酸酯類、烷基三甲基銨基乙內鹽類、氧化胺類等爲佳。做爲非離子性界面活性劑，例如皂苷（類固醇系）、氧化胺衍生物（例如，聚乙二醇、聚乙二醇/聚丙二醇縮合物、聚乙二醇烷基酯類或聚乙二醇烷基芳基酯類、聚乙二醇酯類、聚乙二醇山梨糖醇酐酯類、聚烷基二醇烷基胺或醯胺基類、矽氧烷之聚乙烯氧附加物類）、糖醇衍生物 (例如脂烯基琥珀酸聚蠟酯，烷基苯基聚甘油酯）、多價醇脂肪酸酯類等之烷基酯類等爲佳。導電性聚合物係未特別加以限定，可爲陽離子性、陰離子性、兩性及無離子性之任一者，其中較佳者爲陽離子性、陰離子性。更佳者爲陽離子性，係磺酸系、碳酸系、陰離子性則爲3級胺系、4級銨系之聚合物或乳膠。此等之導電性聚合物係列舉例如日本特公昭5 2 一 25251號、日本特開昭51 — 29923號、日本特公昭6 0 - 4 8 0 2 4號記載之陽離子性聚合物或乳膠， i紙張尺度適用中國國家標準（CNS) M規格（21〇χ297公董） ------1227795 A7 _____B7 _ V. Description of the invention (1) [Technical scope to which the invention belongs] (Please read the notes on the back before filling out this page) The present invention relates to a polarizing plate unit with a polarizing plate and a separation film. The present invention relates to a polarizing plate unit having a first separation film and a second separation film. [Previous technology] Polarizing plates are usually colored with a dichroic dye with polarizing function, a uniaxially oriented polyvinyl alcohol film (polarizing film), and two pieces of cellulose with the first and second protective films Triacetate (TAC) film, which is formed by sandwiching the sides. The polarizing plate manufactured in this way will be shipped with a separator film that is easier to peel off on the surface (it may be re-attached after peeling). Then, before the polarizing plate is shipped, or after the polarizing plate is received, the product inspection of the polarizing plate is performed. As a product inspection, there may be a cross polarizing plate. When viewed in total darkness, there is a method for investigating whether or not there are defects or the number of light leaks. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs In the past, in this separator film, a biaxially oriented polyethylene terephthalate film was mainly used. When this biaxially oriented polyethylene terephthalate film is used as a separator film, the normal part will not become completely dark when the polarizer is crossed, and the interfering streaks will appear strongly. For visual inspection, etc. There is something wrong with the inspection. For this reason, during the inspection, the separation film is peeled off, and after the inspection, in order to protect the polarizing plate, it is necessary to perform a complicated process of attaching the separation film again. [Problems to be Solved by the Invention] ^ Zhang scale is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) ^ -4-1227795 A7 B7 V. Description of the invention (2) (Please read the notes on the back before reading (Fill in this page) Here, the subject of the present invention is to provide a polarizing plate unit with a separation film that is excellent in workability in detecting the shortcomings of the polarizing plate while maintaining the state of being attached. In addition, the subject of the present invention is to reduce complicated projects or increase the degree of freedom in engineering design when inspecting polarizing plates. It is another object of the present invention to provide a separator film having excellent optical characteristics such as optical anisotropy and interference fringes. In addition, when a non-interference streak film is used as the separation film, as the non-interference streak film, T AC, cast polycarbonate (PC), polyethersulfonate (PES), and the like can be cited. These costs are high, demanding films are inexpensive, have excellent optical characteristics, and are easy to handle. [Summary of the invention] 1. A first protective film including a polarizing film having a first surface and a second surface provided on the first surface of the polarizing film, and a second protection provided on the second surface of the polarizing film. Film, the first separation film provided on the aforementioned first protection film, and the polarizing plate unit of the second separation film printed on the aforementioned second protection film printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, The alignment angle of the first separation film and / or the second separation film is 80 ° or more. 2. In the polarizing plate unit described in 1, the first separation film and / or the second separation film are extended in a direction of 1 ··· to 2 · 5 times, and extend in a direction orthogonal to the 2 · 5 to 7 · 0 times resin film. This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) -5- 1227795 A7 ____ B7____ 5. Description of the invention (3) (Please read the precautions on the back before filling this page) 3 · Recorded in 1 of In the polarizing plate unit, the absolute value 差 of the refractive index in the longitudinal direction and / or the refractive index in the horizontal direction of the first separation film and / or the second separation film is not less than 0.02. 4. The polarizing plate unit described in 1 has a surface specific impedance of 2 3 ° C and 2 5% RH of the first separation film and / or the second separation film of 1 x 1 〇1 2 Ω / □ the following. 5 · In the polarizing plate unit described in 1, the first separation film and / or the second separation film are added in a temperature range of (Tm-1 5 0.) to (T m-2 5) ° C. Heat-fixed resin film. 6 · In the polarizing plate unit described in 1, the first separation film and / or the second separation film have a retardation of 50 nm or more and a variation of 50 nm or less. 7 · In the polarizing plate unit described in 1, the first separation film and / or the second separation film are 8 0 / m converted to a haze of 0.6% or less. 8 · In the polarizing plate unit described in 1, the first separation film and / or the second separation film are 8 0 // m. The tearing strength is printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. 4 g or more. 9 · The polarizing plate unit described in 1 is characterized in that the tensile strength of the first separator film and / or the second separator film is 13 k g / m m 2 or more. 1 0 · The polarizing plate unit described in 1 has a kinetic coefficient of friction of the first separation film and / or the second separation film of 0 · 4 or less. 0 This paper size applies Chinese National Standard (CNS) A4 specifications ( 210X297 mm) -6-A7 1227795 B7 V. Description of the invention (4) 1 1 · In the polarizing plate unit of 1, the first and second partition films and / or the second and third partition films are at both ends and central portions. Orientation angle (please read the precautions on the back before filling this page) The difference is 0 to 10 degrees. 12. The polarizing plate unit described in 1 is characterized in that the thermal shrinkage of the first partition film and / or the second partition film at 80 ° C and 30 minutes is equal to or less than 5% in the vertical and horizontal directions. 13. In the polarizing plate unit described in 1, the first separation film and / or the second separation film are selected from at least one kind of polypropylene film, polystyrene film, polyethylene film, and polyester film. 14. In the polarizing plate unit described in 2, the first separation film and / or the second separation film are selected from at least one kind of polypropylene film, polystyrene film, polyethylene film, and polyester film. Describe other embodiments. ^ On one side of the polarizer with the polarizer and the two sides covered with a protective film, a protective film is attached, and a separator film is attached on the opposite side. The protective film and / or the separator film are extended only in one direction. Polyester film for surface protection of polarizing plates. The Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed on one side of the polarizing plate that covers the polarizers and the two sides with a protective film, a protective film, and a separator film on the opposite side. The protective film and / or The separation film has a stretch ratio of 1.0 to 2.0 in one direction, and a stretch ratio of 2.5 to 7.0 in a direction orthogonal to this. The surface protection of the polyester film is biaxially oriented. Polarizer. On one side of the polarizer with the polarizer and the two sides covered with a protective film, a protective film is attached, and a separator film is attached on the opposite side. This paper size applies to China National Standard (CNS) A4 (210X297) (Centi) 1227795 A7 ___ B7 V. Description of the invention (5) The protective film and / or the separation film are stretched in the longitudinal direction by 1 · 0 to 2 · 0 times, and the stretched ratio in the horizontal direction are 2.5 to 7 · 0 times double Axis Orientation (Please read the precautions on the back before filling this page) The polarizing plate for the surface protection of the molded polyester film. On one side of the polarizing plate that covers the polarizer and the two sides with a protective film, a protective film is attached, and a separation film is attached on the opposite side. The protective film and / or the separation film have a refractive index in the transverse direction (η TD) and the absolute difference between the refractive index (η MD) in the longitudinal direction 値 | η TD — η MD | is a polarizing plate for surface protection of a polyester film having a diameter of 0.03 or more. Protective film and / or separator film with a surface specific impedance of 2 3 ° C, 25% R Η and a surface protection impedance of 1 X 1 0 1 2 Ω / □ or less. On one side of the polarizing plate that covers the polarizer and the two sides with a protective film, a protective film is attached, and a separator film is attached on the opposite side. The protective film and / or the separator film are oriented only in one direction. Polarizer for surface protection of polyester film. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The above films are known to be biaxially oriented polyester films that have no optical anisotropy and are superior in optical characteristics. As a result, when used as the third protective film and / or separation film of the polarizing plate, in the state of the orthogonal polarizing plate (staggered state), there was no light leakage in total darkness, and due to the interference of light streaks There are very few reasons. It is not necessary to remove the third protective film or separation film, and it can be inspected in the state of being attached. The reason is that the workability of the inspection of the bright spots and foreign objects during product inspection is very good. [Implementation Mode of the Invention] The paper size is in accordance with the Chinese National Standard (CNS) A4 specification (210 × 297 mm) -8-1227795 A7 B7 " I. Description of the invention (6) The following is a detailed description of the invention. (Please read the precautions on the back before filling out this page.) The configuration example of the polarizing unit of the present invention will be described using FIG. 1. The polarizing plate unit according to the present invention is not limited to the one shown in Fig. 1. The configuration shown in Fig. 1 is an example of a polarizing plate unit having a first separation film and a second separation film. FIG. 1 The polarizing plate unit 16 is attached to one of the polarizing plates 14 through the adhesive layer 1 1 and the first separation film 10 is attached to the other side of the polarizing plate 14 through the adhesive layer 8 ′.着第 2 的分膜 12。 2 2 of the separation film. Because the adhesive force of the adhesive layers 8, 12 is relatively weak, the first separator film 10 and the second separator film 12 can be peeled off. The configuration of the polarizing plate 14 is described below. On one side of the polarizing film 5, it is more adhesive layer 8, and through the adhesive layer 4 with strong adhesive force, the first protective film 3 is attached, and on the other side of the polarizing plate 13, the other side of the polarizing film 5 The surface is constituted by bonding a second protective film 7 through the adhesive layer 6. When the first separation film 10 printed by the employee's consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs is provided on the side opposite to the cell surface of the liquid crystal, the adhesive layer 1 1 is when the first separation film 10 is peeled off. It is preferable that it does not remain on the first protective film 3. The first protective film 3 and the second protective film 7 are preferably of the same material or thickness. Further, a first protective film 3 or a second protective film 7 may be further provided with a charge prevention layer or a protective layer, and an adhesive layer or an adhesive layer may be provided thereon. It is also possible to provide an antistatic layer or a protective layer on the first separation film 10 or the second separation film 12. In addition, after the first separation film 10 or the second separation film 12 is peeled off, it is left on this paper in accordance with the Chinese National Standard (CNS) A4 specification (210X297 mm). -9-Consumption by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative 1227795 A7 B7 _ 5. Description of the invention (7) The composition of the adhesive layer 8 is also possible. At this time, the adhesive layer 8 is composed of two layers of an adhesive layer (for example, the second separation film side) and an adhesive layer (for example, the second protective film side). After the material of the adhesive layer 8 is peeled off, it is a residual material. . When the adhesive layer is left after the separation film is peeled off, it can adhere to the liquid crystal cell through the residual adhesive layer. However, when the adhesive layer is left after "peeling", the strength is preferably 4,000 to 10,000 § / 25 mm in the method described in JIS 2037. After the peeling, no adhesion is left. At the time of lamination, the adhesion force is preferably 10 ~ 100 g / 2 5mm. Instead of providing the adhesive layers 4, 6, the first protective film 3 or the second protective film 7 may be provided on the polarizing film 5 in a layered manner, and may be provided by coating. The first separation film 10 may be provided in a layered manner on the first protection film 3, or may be provided by coating. Here, the second separation film 12 may be provided in a layered manner on the second protection film 7 or may be provided by coating. In addition, without providing an adhesive layer, a partition film may be provided. The preferred adhesion force at this time is also as described above. Each film or each layer will be described. The separation film meets the condition that the alignment angle is 80 degrees or more. The alignment angle is preferably 80 ° or more, 90 ° or less is preferred, and the alignment angle is 82 ° or more, and 90 ° or less is more preferred. The alignment angle is an array of polymer molecules that are crystallized and fixed during film extension and thermosetting. Based on the number of polarizing measurements, a sample is placed between two polarizing plates to measure the intensity of transmitted light. It can be easily measured by methods or via various machines. This alignment angle is based on resin films such as polyester films made of ordinary films. The size of this paper is applicable to China National Standard (CNS) A4 specifications (210 ×: 297 mm) ''----------- 0 ------- 、 Order ------ ^ 91 (Please read the notes on the back before filling this page) -10- 1227795 A7 ___B7 V. Description of the invention (8) (Please read the notes on the back first Please fill in this page again for details) The difference between the end part and the end part is the largest, and the difference is preferably the resin film of the separation film of the present invention when the difference is small. In the present invention, the difference between the alignment angles of the two ends of the separation film-based film and the central portion is preferably 0 to 10 degrees, more preferably 0 to 5 degrees, and even more preferably 0 to 3 degrees. The measurement of the alignment angle is performed as follows. After film formation, the film was measured using an "autobirefringence meter" (KOB Β RA-2 1 D Η type manufactured by Shin-Oji Paper Co., Ltd.) at a measurement wavelength of 590 nm, and a measurement of 3 6 0 at 36 ° Point to obtain the alignment angle (tilt of the optical main axis: incline). The resin film used as the separation film of the present invention is preferably one containing at least one polypropylene film, polystyrene film, polyethylene film, and polyester film. Or at least one kind of polypropylene film, polystyrene film, polyethylene film, polyester film may be used. In particular, polyester-containing resin films are preferred, particularly those having a polyester component of 50% or more. The polyester film may be a polyester film itself. The polyester system constituting the polyester film is not particularly limited, and a polyester having a film-forming property containing a dicarbonate component and a diol component as main constituent components is preferred. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs as the main component of carbonic acid, including terephthalic acid, isophthalic acid, phthalic acid, 2-6 naphthalene dicarbonate, and 2-7 naphthalene dicarbonate , Diphenyl master dicarbonate, diphenyl ether dicarbonate, diphenyl ethyl ether monocarbonate, cyclohexane dicarbonate, diphenyl dicarbonate, diphenyl sulfide dicarbonate, benzophenone dicarbonate, benzeneindane dicarbonate, etc. . In addition, as the diol component, ethylene glycol, propylene glycol, tetramethyl glycol, cyclohexanediol, 2, 2-bis (4-hydroxyphenyl) propane, and 2, 2-bis (4-hydroxyethoxylate) Phenyl) propane 'bis (4 paper size applicable to Chinese National Standard (CNS) A4 specifications (210X297 mm) -11-1227795 A7 B7 V. Description of the invention (9) Monohydroxyphenyl) sulfo, bisphenyl hydrazone Diethyl ether, diethylene glycol, neopentyl glycol, p-diphenol, cyclohexanediol, etc. (Please read the precautions on the back before filling out this page.) Among the polyesters that are the main constituents, the points of transparency, mechanical strength, and dimensional stability will be used as the dicarbonate component. Formic acid and 2-6 naphthalene dicarbonic acid are preferred as the glycol component glycol and / or diethylene glycol as the main constituent polyester. Among them, polyesters mainly composed of polyethylene terephthalate or styrene 2-6 naphthyl ester, or copolymerized polyesters of terephthalic acid, 2-6 naphthalenedicarbonic acid, and ethylene glycol And polyesters in which a mixture of two or more of these polyesters are the main constituent. As for polyester, when it contains 70% by weight or more of a parastilbene unit or an ethylene 2-6 naphthalene unit, a film having a high degree of transparency, mechanical strength, dimensional stability, and the like can be obtained. ^ As long as the polyester constituting the polyester film of the present invention does not hinder the effects of the present invention, it is also possible to copolymerize other copolymerization components, and it is also possible to mix other polyesters. For these examples, the cost of the dicarbonic acid component or diol, or the polyester formed by these is listed. Among the polyesters constituting the polyester film of the present invention, printed by the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, aromatic dicarbonic acid having a sulfur group or an ester-forming derivative thereof, and dicarbonic acid having a polyalkenyl group are copolymerized. The forming derivative may be a diol having a polyalkenyl group. In terms of polyester polymerization reactivity or film transparency, 5-sodium sulfoisobutyric acid, 25-sodium sulfoterephthalic acid, 4-monosodium sulfoisobutyric acid, 4-monosodium sulfoisobutyric acid, and 4-monosodium sulfo -2,6-naphthalenedioic acid and compounds in which these sodium is replaced with other metals (such as potassium, lithium, etc.) or ammonium salts, iron salts, etc. or the ester-forming derivatives of this paper are applicable to Chinese national standards (CNS) ) A4 size (210X297 mm) '-12-1227795 A7 B7 V. Description of invention (10) (Please read the notes on the back before filling this page) Biological, polyethylene glycol, polytetramethylene glycol Polyethylene glycol-polypropylene glycol copolymers and compounds which oxidize the carboxyl groups of these hydroxyl groups at both ends are preferred. For the purpose of improving the heat resistance of the film, a compound having a bisphenol-based copolymer, a naphthalene ring, or a cyclohexane is copolymerized. The polyester used in the present invention may contain an oxidation inhibitor. In particular, compounds containing polyalkenyloxy are most effective. The antioxidant-containing agent is not particularly limited to this type, and various types of antioxidants are used. Examples of the antioxidant include phenolic compounds, phosphate ester compounds, and thioether compounds. Among them, an oxidation inhibitor of a phenol-based compound is preferred. The content of the oxidation inhibitor is from 0.01 to 0.2% by weight, preferably from 0.1 to 0.5%, for the polyester. The polyester film of the present invention can be attached to slippery properties as required. Although it is not particularly limited as an easy-slip adhering means, a method of adding external particles of non-reactive inorganic particles to polyester, a method of precipitating internal particles to add a catalyst during the synthesis of polyester, or an interface A method for applying an active agent or the like to a film surface. Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The method for synthesizing polyester of the raw material of the polyester film of the present invention is not particularly limited, and it can be produced according to a conventionally known method for producing polyester. For example, a direct esterification method in which a dicarbonate component and a diol component are directly esterified can be used. First, a dialkyl ester is used as a dicarbonate component, and this is transesterified with a diol component. This is under reduced pressure. The transesterification method which heats and polymerizes by removing the remaining diol component. At this time, if necessary, a transesterification catalyst or a polymerization catalyst may be used, or a heat-resistant stabilizer may be added. In addition, during each process of synthesis, adding coloring preventive, oxidation preventive, and crystal nucleus. The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -13- 1227795 A7 B7 V. Description of the invention (n) (Please read the precautions on the back before filling out this page) Agents, lubricants, stabilizers, protective agents, UV attractants, viscosity modifiers, defoamers, cleareners, antistatic agents, pH adjusters, dyes , Pigments are also available. < Definitions of the glass transition temperature T g, crystallization temperature T c and melting point T m of the present invention > 10 mg of a film or ingot was placed in a nitrogen stream of 3,000 m 1 per minute at 3,000. ° C melted and immediately quenched with liquid nitrogen. This quenched sample was set in a differential scanning cat-type calorimeter (DSC8320 type manufactured by Rigaku Electric Co., Ltd.), and heated at a temperature of 10 ° C per minute in a nitrogen flow of 10 ml per minute to detect T a , D c and T m. When T g is the temperature at which the baseline starts to deviate, the average temperature newly returned to the baseline 値 ′ T c is the peak temperature of the exothermic spike, and T m is the peak temperature of the endothermic spike. The measurement start temperature is 50 ° C or more lower than the measured T g. The separation film of the present invention has a stretch ratio of 1.0 in one direction, printed by the consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, 2.5 times, and the stretch ratio orthogonal to this direction is 2. 5 to 7.0. The resin film of the film is more preferred. ◦ It is more preferably a resin film in which the stretching ratio in the longitudinal direction is 1.0 to 2.5, and the stretching ratio in the horizontal direction is 2.5 to 7.0. It is preferable that the stretching magnification in one direction is 1. 0 to 1.8 times, and the stretching magnification in the orthogonal direction is 3. 5 to 6. 0 times. More preferably, the resin film is stretched in the longitudinal direction with a stretch ratio of 1. to 0 to 1 and 8 in the horizontal direction, and 3 to 5 to 6 in the horizontal direction. The paper size applies the Chinese National Standard (CNS) A4 specification ( 210X297mm) _ 14- 1227795 A7 B7 V. Description of the invention (1mm is preferably the extension magnification in one direction of 1 · 〇 ~ 1 · 1 times, and the extension magnification orthogonal to this direction is 3 · 5 ~ 6 · Resin film with 〇 stretching film. More preferably, it is a resin film with a stretching ratio of 1 · 0 ~ 1 · 1 in the longitudinal direction and a stretching ratio of 3 · 5 ~ 6 · 〇 in the horizontal direction. The film is particularly preferred to obtain a polyester film, which can be performed by a conventionally known method. Although not particularly limited, it can be performed by the following method. At this time, the film forming direction (length direction) of the film is referred to as horizontal. The direction is at right angles to the molding direction of the film. Hereinafter, an example of a method for manufacturing a polyester film is described. First, the raw material polyester is molded into an ingot shape, hot air dried or vacuum dried, and then melted and pressed. Flake-shaped, through static An electric application method is adhered to a cooling drum, and is cooled and solidified to obtain an unstretched thin sheet. Next, the obtained unstretched sheet is passed through a heating device such as a plurality of roller groups and / or infrared heaters to the polyester. It is a method of heating in the range of glass transition temperature (T g) to T g + 100 ° C, and one or more sections are stretched longitudinally. In the present invention, the stretch ratio in the longitudinal direction is 1 · 0 to 2.0 times. More preferably, it is 1 · 0 to 1.8 times. More preferably, it is 1 · 0 to 1 · 1 times. Next, the polyester film stretched in the longitudinal direction obtained as described above is from T In the temperature range from g T to T m-20 ° C, lateral extension is followed by heat fixing. In the present invention, the lateral extension ratio is preferably 2 · 5 to 7 · 0 times, more preferably 3 · 0 to 6 · 0 times, or even the Chinese paper standard (CNS) A4 (210X297 mm) for this paper size 0 ------- 1T ------ ^ 91 (Please read the back first Please fill in this page before printing.) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs -15 · A7 1227795 B7 V. Description of the invention (13) 4. ～ 6. Note on the back side, please fill in this page again.) When extending horizontally, divide it into two or more extensions. When the temperature difference is in the range of 1 to 50 ° C, gradually increase the temperature and extend horizontally to reduce the width. The physical property distribution is better. After the horizontal stretching, the film is below the final horizontal stretching temperature, in the range of T g-40 ° C or more, and the physical property distribution in the width direction is maintained between 0 and 0 1 to 4 minutes. It is more preferable to reduce. The heat fixing temperature is preferably in a temperature range of T m-1 40 ° C to T m-60 ° C, and more preferably in a temperature range of Tm-1 3 Ot: ~ Tm-70 ° C. In this case, it is preferable to divide the two or more ranges and set the temperature difference in the range of 1 to 100 ° C, and heat-fix the heat sequentially. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The heat-fixed film is usually cooled to below T g, and the clip holding parts at both ends of the film are cut and wound. At this time, it is preferable to perform a relaxation treatment of 0.1 to 10% in a temperature range above Tg, in a temperature range above Tg, and in a horizontal direction and / or a vertical direction. In addition, the cooling system is preferably performed by gradually cooling from the final fixed temperature to T g at a cooling rate of 100 ° C or lower per second. The means for cooling and relaxation are not particularly limited, and they can be performed by conventionally known means, especially in the order of cooling in a plurality of temperature ranges. Although these processes are performed, it is better to improve the dimensional stability of the film. However, the cooling rate is obtained when the final heat-fixing temperature is T 1, and when the time from the final heat-fixing temperature of the film to t g is t, the ratio of (T 1-T g) / t is obtained. The optimal conditions for these heat-fixing conditions, cooling and relaxation processing conditions will vary depending on the polyester of the film. The biaxially oriented film obtained from the measurement is based on the Chinese national standard (CNS) A4 specification (210X297 mm). ) -16- 1227795 A7 B7____ 5. The physical properties of invention description (14) have better characteristics, and it is better to decide through proper adjustment. (Please read the precautions on the back before filling in this page.) Also, during the above-mentioned film manufacturing, before the stretching and / or after the 'coating of the anti-charge layer, slippery layer, and then the functional layer of the barrier layer, barrier layer, etc. Yes. At this time, various surface treatments such as sundial discharge treatment, chemical liquid treatment, etc. are processed as required. After the smashed grips at the ends of the cut film are pulverized, or granulated, depolymerized, and repolymerized as required. After the treatment, it can be reused as a raw material for thin films of the same variety or as a raw material for thin films of p-type. The above method of film formation is applicable to other than polyester. Further, the absolute value of the difference between the refractive index (η M D) in the plane direction and the refractive index (η T D) in the transverse direction with respect to the refractive index 'in the plane direction and the absolute refractive index 値 | nTD — nMD | is not less than 0.02. It is preferably at least 0.03, more preferably at least 0.04, and more preferably at least 0.05. In addition, the thermal shrinkage of the separation film at 80 ° C and 30 minutes is preferably in the vertical and horizontal directions, and is preferably 5% or less. The vertical and horizontal directions are preferably 2% or less, and more preferably the vertical and horizontal directions are 1% or less. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, it is better to have a separation film with a delay of 50 nm or more, and it is better to have a dispersion of 50 nm or less. The retardation is preferably 50 to 500 nm. More preferably, it is 100 to 400 nm. It is preferable that there is no variation, which is substantially 50 nm or less, and more preferably 40 nm or less. The retardation was measured using an automatic birefringence meter KOB R A — 2 1 D Η (manufactured by KS Systems Co., Ltd.) at 2 3 ° C, 55% R Η. Measurement was performed at 10 places, and the average radon was displayed. The stagger is displayed as the difference between the maximum and minimum 値. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -17- 1227795 A7 B7 V. Description of the invention (15) In addition, the thickness of the separation film is 8 0 // m. · Preferably below 6%. It is more preferably 0. 5% or less, and the more preferable is (please read the precautions on the back before filling in this page) 0 or less than 4%. It is even less than 0.3%. The lower the light haze ratio is, the lower the limit is 0.1%. The light haze is measured using a haze meter (for example, a 001 D P type manufactured by Nippon Denshoku Industries Co., Ltd.). This measurement result was converted into a haze at a film thickness of 80. It is preferable that the tear strength of the separator film is 40 g or more in terms of a thickness of 80 #m. More preferably, it is 45 g or more, More preferably, it is 50 g or more. The larger the tear strength is, the better, but depending on the manufacturing conditions and the like, the degree of 100 g is the upper limit. Tear strength is cut into 50 m x 6 4 m m samples. According to the specifications of 1 S0 6 3 8 3/2-19 8 3, the required increase in tear strength is obtained. The direction of flow extension of the film and the direction perpendicular to this were measured, and the average of these was taken to obtain the tear strength. From this measurement result, the tear strength when the thickness of the film is 8 0 // m is converted. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The tensile strength of the separator film is 13 k g / m 2. More preferably, it is 13.5 kg / mm2, and even more preferably, it is 14 kg / mm2. And 15 k g / m m 2 is the best. The larger the tensile strength, the better, but the upper limit is 50 k g / m 2 from the manufacturing conditions. Tensile strength is cut into 50 m x 6 4 m m samples. According to the specifications of ISO 306 3 8 3/2-1 983, the required increase in tear strength is obtained. The direction of flow extension of the film and the direction perpendicular to this were measured, and the average of these was taken to obtain the tensile strength. From this measurement result, the paper size is converted to the Chinese national standard (CNS) A4 specification (210X297 mm) -18-1227795 A7 B7 V. Description of the invention (16) Tensile strength when the thickness of the film is 80 A m . (Please read the precautions on the back before filling out this page.) It is better that the coefficient of dynamic friction of the separator is 0 or less than 40. It is preferably 0 · 3 5 or less, and more preferably 0 · 30 or less. The most preferable is 0.25 or less. Although the lower the coefficient of dynamic friction, the better, but under the factors such as manufacturing conditions, the degree of 0 · 10 is its lower limit. The coefficient of dynamic friction is easily measured using a steel ball according to a method prescribed by J I S or AS T Μ. The thickness of the separation film of the present invention is preferably 10 to 100 / m, more preferably 20 to 60 / m, and more preferably 20 to 50m. The thin strip used in the separator film of the present invention, especially the polyester film having a T g of 50 ° C or higher is preferred, and a T 60 of 60 ° C or higher is more preferred. T g is calculated as the average temperature of the newly returned baseline temperature when the baseline bias temperature measured by a differential scanning calorimeter is used. In the present invention, it is preferable that the surface of the separation film has conductivity, and the surface specific resistance (23t :, 25% RH) is preferably 1 × 1012Q / D or less. The better is less than 1 x 1 0 1 1 Ω / □, and the better is less than ΙχΙΟ ^ Ω / □. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs In the present invention, although the conductive part is not particularly limited, it is formed by containing a hygroscopic substance or a conductive substance. Examples of the substance with an added conductivity include interfacial curing agents, conductive polymers, and inorganic metal oxides. As the usable surfactant, any of cationic, anionic, amphoteric and non-ionic properties can be used. As a cationic surfactant, for example, it contains alkyl carbonate, alkyl sulfonate, alkyl benzene sulfonate, and alkyl naphthalene. The paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) -19 -A7 1227795 B7 ________ 5. Explanation of the invention (17) Sulfonates, alkyl sulfates, alkyl phosphates, N-fluorenyl-N-alkyl taurine, sulfosuccinates, sulfo Carboxylic acid groups such as alkylpolyvinyloxyalkylphenyl esters and polyvinyloxyalkyl phosphates, acidic groups such as sulfonic acid, phosphorus group, sulfate group, and phosphate group are preferred. As an anionic surfactant, for example, an alkylamine salt, an aliphatic or aromatic fourth-order ammonium salt, a pyridine key, an imidazole, a heterocyclic fourth ammonium salt, and an aliphatic or heterocyclic heterocyclic Scales or osmium salts are preferred. As amphoteric surfactants, for example, amino acids, amino alkyl sulfonic acids, amino alkyl sulfuric acid or phosphate esters, alkyltrimethylammonium betaines, and amine oxides are preferred. As nonionic surfactants, such as saponin (steroids), amine oxide derivatives (for example, polyethylene glycol, polyethylene glycol / polypropylene glycol condensate, polyethylene glycol alkyl esters, or polyethylene glycol Alkyl alkyl aryl esters, polyethylene glycol esters, polyethylene glycol sorbitan esters, polyalkylene glycol alkylamines or amidoamines, polyoxygen additives of siloxanes ), Sugar alcohol derivatives (such as fatty alkenyl succinate polyalkyl esters, alkylphenyl polyglycerol esters), polyhydric alcohol fatty acid esters, and other alkyl esters are preferred. The conductive polymer is not particularly limited, and may be any of cationic, anionic, amphoteric, and nonionic. Among them, cationic and anionic are preferred. More preferred are cationic, sulfonic, carbonic, and anionic polymers or latexes of tertiary amine and tertiary ammonium. Examples of such conductive polymer series include cationic polymers or latexes described in Japanese Patent Publication No. 5 2-25251, Japanese Patent Publication No. 51-29923, Japanese Patent Publication No. 6 0-4 8 0 2 4, i Paper size applies Chinese National Standard (CNS) M specification (21〇χ297 公董) ------

Awl------訂------Awl (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 -20 - 1227795 A7 B7 五、發明説明（18) (請先閲讀背面之注意事項再填寫本頁) 曰本特公昭57 — 18176號，同57 — 56 0 59號、同58 — 56856號、美國專利4118231號等記載的陰離子性聚合物或乳膠等。做爲保護本發明之偏光薄膜之兩面的第1、第2之保護薄膜使用之薄膜，係主要使用纖維素三醋酸酯，但不特別加以限定，可以纖維素二醋酸酯、纖維素醋酸丁酯、纖維素丙酸酯等之纖維素酯、聚碳化酯系薄膜、降冰片烷系樹脂薄膜，聚酯系薄膜、聚芳酯系薄膜等。厚度雖未特別加以限定，由機能上及易處理性以1 〇至5 0 0 # m，特別以2 5至3 0 0 // m爲佳。於保護薄膜，經由期望含有紫外線吸收劑、可塑劑、滑劑、掩蓋劑等亦可。又，第1、第2之保護薄膜係延遲値爲3 0 n m以下者鳶佳。又，於9 0 t施以6 0小時熱處理後之尺寸收縮率爲0 · 06%以下且一 0 · 06%以上者爲佳。經濟部智慧財產局員工消費合作社印製本發明之偏光薄膜及保護薄膜之製作方法係非加以限定，可以一般之方法製作。例如將纖維素三醋酸酯薄膜進行鹼處理，將聚乙烯醇薄膜於沃素溶液中，於浸漬延伸力口以製作之偏光薄膜之兩面，使用完全鹼化聚乙烯醇水溶液加以貼合之方法。代替鹼處理，可使用日本特開平6 -9 4 9 1 5號、同6 — 1 1 8 2 3 2號所記載的易接著加工亦可。貼合本發明之第1 、第2之保護薄膜處理面.，和偏光薄膜所使用之黏著劑，可列舉聚乙二醇、聚乙烯丁縮醛等之聚乙二醇系黏著劑，或丁基丙烯酸酯等之乙烯系乳膠等本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -21 - 1227795 A7 _B7 _ 五、發明説明（19) 。又，偏光薄膜作成時之延伸方向皚第1 、第2之保護薄膜及分隔薄膜之橫延伸方向呈直行地加以貼合者爲佳。 (請先閱讀背面之注意事項再填寫本頁) 【實施例】以下，經由實施例，將本發明更具體加以說明，但本發明之實施形態並非限定於此。實施例1 〔分隔薄膜之製作〕 (聚對二苯甲酸乙二醇酯Ν ο · 1之製作）於1 0 0重量份對二甲苯酸二甲院，6 3重量份乙二醇，2重量份二乙二醇，做爲酯交換觸媒，添加0 · 〇 5 重量部醋酸鎂水合物，根據經常之方法，進行酯交換反應。於所得之生成物，添加0 · 0 5重量份三氧化銨，〇· 0 3重量份磷酸三甲基酯。接著，徐徐地加以昇溫’ 加以減壓，以2 8 0 °C、0 · 5 m m H g加以進行聚合，得固有粘度0 · 7 0之聚對二苯甲酸乙二醇酯。經濟部智慧財產局員工消費合作社印製更且，將聚對二苯甲酸乙二醇酯，以1 5 0 °C 8小時真空乾燥之後，使用押出機，以2 8 5 °C熔融押出，於 3〇°C之冷卻鼓上，施加靜電地加以密著，得冷卻固化之未延伸薄片。將此未延伸薄片使用輥式縱延伸機，以8 5 °C於縱方向延伸1 · 2倍。表背面之溫度差係5 °C以內。將所得單軸定向使用弓形式橫延伸機，於9 5 °C在於橫方向，延伸4 · 5倍。接著，於7 0 °C進行2秒間熱處理，更且於第1熱固定區’以1 5 0 °C進行1 0秒間熱固本紙張尺度適用中國國家標準（CNS ) A4規格（21〇X297公釐） -22- A7 1227795 B7 五、發明説明（20) (請先閱讀背面之注意事項再填寫本頁) 定，於第2熱固定區，以1 8 0 °C 1 5秒間熱固疋’ ^者以1 6 0 °C於橫方向弛緩處理加以捲取’製作橫方向之長 1 5 0 〇mm、厚4 0 //m之雙軸定向聚對一本甲酸乙一醇酯（聚對二苯甲酸乙二醇酯）薄膜N〇· 1 ° (聚對二苯甲酸乙二醇酯薄膜N 〇 · 2至9之製作）於聚對二苯甲酸乙二醇酯薄膜N 〇 · 1之製膜’將縱橫之延伸倍率示於表1加以變化製作之外’同樣地製作聚對二苯甲酸乙二醇酯薄膜N 〇 · 2至9。 (聚對二苯甲酸乙二醇酯薄膜N 〇 . 1 0至1 2之製作）於聚對二苯甲酸乙二醇酯薄膜Ν ο · 1之製膜，不延伸縱方向（因此縱方向之延伸倍率爲1 · 0倍），僅橫之延伸倍率示於表1將延伸倍率加以變化製作之外，同樣地製作Νο·1〇至12。【偏光薄膜及保護薄膜】 0(^11^公司製之厚8 0//111之丁八〇薄膜（ CONIKATACK KC80UVS)，以 40°C 之 2 · 5Ν —氫氧化經濟部智慧財產局員工消費合作社印製鈉水溶液6 0秒間鹼處理，更且得水洗乾洗將表面鹼處理的T A C薄膜。於前述偏光膜薄膜之兩面，將前TA C基台，令鹼處理面’將完全鹼化型聚乙二醇5 %手溶液做爲黏著劑，由兩面貼合，製作偏光板。【偏光板試料Ν ο · 1至1 2之製作】方^則述所製作之偏光板之一方之面，施以輕度之粘著加工後’將前述聚對二苯甲酸乙二醇酯薄膜N 〇 · 1做爲私氏張尺度適用中國國^^ (CNS )八4規格（21〇χ297公董） ' -— -23 - 1227795 A7Awl ------ Order ------ Awl (Please read the notes on the back before filling out this page) Printed by the Consumer Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs -20-1227795 A7 B7 V. Description of the invention (18 ) (Please read the precautions on the back before filling out this page) An anionic polymer or latex described in Japanese Patent Publication Nos. 57-18176, 57-56 0 59, 58-56856, US Patent No. 4,118,231, etc. Wait. The film used as the first and second protective films for protecting both sides of the polarizing film of the present invention is mainly cellulose triacetate, but it is not particularly limited. Cellulose diacetate and cellulose butyl acetate can be used. , Cellulose esters such as cellulose propionate, polycarbonate-based films, norbornene-based resin films, polyester-based films, polyarylate-based films, and the like. Although the thickness is not particularly limited, it is preferably from 10 to 5 0 # m, especially from 25 to 3 0 0 // m. For the protective film, an ultraviolet absorber, a plasticizer, a slip agent, a masking agent, or the like may be contained. The first and second protective films have a retardation 値 of 30 n m or less. The dimensional shrinkage after heat treatment at 90 t for 60 hours is preferably 0. 06% or less and more than 0. 06%. Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economics The production method of the polarizing film and the protective film of the present invention is not limited, and it can be produced by ordinary methods. For example, the cellulose triacetate film is subjected to alkali treatment, and the polyvinyl alcohol film is immersed in both sides of a polarizing film produced by dipping the stretching force in a solution of polyvinyl alcohol, and then a fully alkaline aqueous solution of polyvinyl alcohol is used for bonding. Instead of the alkali treatment, it is also possible to use the easy subsequent processing described in Japanese Patent Application Laid-Open No. 6-9-4 9 1 5 and the same as 6-1 1 8 2 3 2. Adhesives used for bonding the first and second protective film treatment surfaces of the present invention and polarizing films include polyethylene glycol-based adhesives such as polyethylene glycol and polyvinyl butyral, or This paper size is based on the Chinese National Standard (CNS) A4 (210X297 mm) -21-1227795 A7 _B7 _ 5. The invention description (19). When the polarizing film is produced, the first and second protective films and the partition film are bonded in a straight line in the horizontal extending direction. (Please read the notes on the back before filling this page.) [Examples] Hereinafter, the present invention will be described in more detail through examples, but the embodiments of the present invention are not limited thereto. Example 1 [Production of a separation film] (Production of polyethylene terephthalate N ο · 1) In 100 parts by weight of dimethyl p-xylate, 6 3 parts by weight of ethylene glycol, 2 weights Part of diethylene glycol as a transesterification catalyst, 0. 005 parts by weight of magnesium acetate hydrate was added, and the transesterification reaction was performed according to a usual method. To the resulting product, 0.05 parts by weight of ammonium trioxide and 0.3 parts by weight of trimethyl phosphate were added. Next, the temperature was gradually increased and the pressure was reduced, and polymerization was performed at 280 ° C and 0.5 m Hg to obtain polyethylene terephthalate having an intrinsic viscosity of 0.7.0. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Polyethylene terephthalate was vacuum-dried at 150 ° C for 8 hours. Then, it was extruded at 25 ° C using an extruder. At a cooling drum of 30 ° C, static electricity was applied to close the unrolled sheet to obtain a solidified unstretched sheet. This unstretched sheet was stretched in a longitudinal direction at 85 ° C by a length of 1.2 times using a roller longitudinal stretcher. The temperature difference on the back of the watch is within 5 ° C. The obtained uniaxial orientation was extended horizontally at a temperature of 9 5 ° C using a bow-type transverse stretcher. Then, heat treatment was performed at 70 ° C for 2 seconds, and the heat-set was performed at 1 50 ° C for 10 seconds in the first heat-fixing zone. The paper size was in accordance with the Chinese National Standard (CNS) A4 specification (21 × 297 mm). (Centi) -22- A7 1227795 B7 V. Description of the invention (20) (Please read the precautions on the back before filling out this page) It will be fixed in the second heat-fixing area at 180 ° C for 15 seconds. ^ Rewind at 16 0 ° C in the transverse direction to make a roll-up to make a biaxially oriented polyethylene glycol formate (polyethylene glycol formate) with a length of 1 500 mm and a thickness of 4 0 // m in the transverse direction. Poly (ethylene terephthalate) film No. 1 ° (Production of polyethylene terephthalate film No. 2 to 9) Production at poly (ethylene terephthalate) film No. 1 The film was produced in the same manner as shown in Table 1 except that the stretching ratios in the vertical and horizontal directions were changed and produced. In the same manner, polyethylene terephthalate films No. 2 to 9 were produced. (Production of polyethylene terephthalate film N 0.1 to 12) Film produced on polyethylene terephthalate film N ο · 1 does not extend in the longitudinal direction (therefore The stretching magnification is 1.0 times). Only the horizontal stretching magnification is shown in Table 1. Except that the stretching magnification is changed, No. 10 to 12 are prepared in the same manner. [Polarizing film and protective film] 0 (^ 11 ^ company-made thickness 8 0 // 111 of Ding Yao 80 film (CONIKATACK KC80UVS), at 40 ° C 2 · 5N — hydroxide consumer intellectual cooperative bureau of intellectual property bureau Print sodium solution in 60 seconds for alkali treatment, and wash and dry clean the TAC film with alkali treatment on the surface. On both sides of the polarizing film, place the front TA C abutment so that the alkali treatment surface will be fully alkalized polyethylene. A 5% diol hand solution is used as an adhesive, and the two sides are laminated to make a polarizing plate. [Production of polarizing plate sample Ν ο · 1 to 12] Fang ^ said one side of the polarizing plate produced, apply After mild adhesion processing, 'the aforementioned polyethylene terephthalate film N 〇 1 is used as the tensor scale for China ^^ (CNS) 8-4 specification (21〇χ297 公董)'- — -23-1227795 A7

7 B 五、發明説明（21) 分隔薄膜加以貼合◦於偏光板之相反面，施以同樣粘箸加工後’將前述聚對二苯甲酸乙二醇酯薄膜N 〇 . 1做爲分隔薄膜加以貼合。此時皆正交偏光薄膜製作時之延伸方向和聚對二苯甲酸乙二醇酯薄膜之橫延伸方向地加以貼合。對於聚對二苯甲酸乙二醇酯薄膜N 〇 · 2至1 2亦同樣地自偏光板之兩面貼合，製作偏光板試料N 〇 . 1至1 2。如以上地製作之偏光板試料Ν ο · 1至1 2，進行如以下記載之評估。該結果示於表1。 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）一 24- 1227795 A7 B7 五、發明説明（22) 經濟部智慧財產局員工消費合作社印製7 B V. Description of the invention (21) Separating film is bonded to the opposite side of the polarizing plate, and after applying the same adhesive process, the aforementioned polyethylene terephthalate film N 0.1 is used as a separating film Fit it. At this time, the extending direction of the orthogonal polarizing film and the lateral extending direction of the polyethylene terephthalate film were bonded together. Polyethylene terephthalate films No. 2 to 12 were similarly bonded from both sides of the polarizing plate to prepare polarizing plate samples No. 1 to 12. The polarizing plate samples N ο · 1 to 12 prepared as described above were evaluated as described below. The results are shown in Table 1. (Please read the precautions on the back before filling out this page) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives This paper is printed in accordance with Chinese National Standard (CNS) A4 (210X297 mm) 1 24-1227795 A7 B7 V. Description of the invention (22) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs

饌_ oo \〇〇\ σ> σ> a\ 侧細輕 un υη KO un uo un l〇 l〇 cn un s CO s ί〇 ν〇 cn ί〇 ι〇 ν/Ί CO cn cn OQ cn cn cn CN CN CN] _ Β 德^ 异 o o 〇 i-i f 1 t—H Ο Ο un 賴S ο cn C<1 CN CNI o CN CN o 〇 \〇 O oo 〇〇 r—H Ο CN1 ο C^l Ο νΤΊ CNI C 厄 μ oo UO OO g OO oo OO s v〇 vo o v〇 νο οο SS ΟΟ οο Η- < PQ < PQ CJ U U u < < < _ Μ 以觸 cn CNl cn C<l 口 On \ H cn un C<1 cn r H oo CN oo c^· oo g cn3 CN cn α\ CNI CO if 1 忘Q 國ξ On 〇 CN o cn S 〇 U-) s § S o OO i—H 〇 1—< g o 〇\ o o 寸 τ—H 〇 τ—Η S Ο οο S ο 卜 S § 迴 S un CO cn irS wn cn on cn wn υη cn cn un i t—i CN O) CN 〇j m cn Ο p Ο Μ鲣 S » r—H C^l cn 寸 VO 卜 oo σ> Ο ^i CS 龚ό ! i CNl cn 寸 un oo a\ Ο i^ CN (請先閱讀背面之注意事項再填寫本頁) 、1Τ 線#· 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -25- 1227795 A7 B7 ___ 五、發明説明（23) (請先閲讀背面之注意事項再填寫本頁) 由表1可明白，將本發明之聚酯薄膜，做爲偏光板之分隔薄膜加以使用時，可知光學特性優異，對於製品檢查之故障檢出之作業性亦優異。實施例2 於與貼合於實施例1製作之聚對二苯甲酸乙二醇酯薄膜N ◦· 1之偏光板之面之相反面，塗設以下之導電性層之外，同樣地製作之偏光板試料N ◦· 1 3至1 5。【導電層之塗設】於聚對二苯甲酸乙二醇酯薄膜Ν ο · 1塗設墊底層後，塗設導電層。 (墊底層）將丙烯酸系共聚乳膠（3 0重量％之丁基丙烯酸酯/ 2 0重量％ t - 丁基丙烯酸酯/2 5重量-羥基丙烯酸酯/ 2 5重量％苯乙烯呈厚0 . 2 // m地加以塗設。 (導電層）經濟部智慧財產局員工消費合作社印製 3 · lg 〇 · 2g 〇 · 3g 0 . 1 呈1000ml處理於前述墊底層之上，各塗設下述導電層，製作試料 Ν ο · 1 2 至 1 4 試料1 3 化合物（A) 化合物（B) 化合物（C) 石夕微粒子（2至3// m) 蒸餾水本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -26 - 1227795 A7 B7 五、發明説明（24) 將上述加工液，呈厚0 . 1 // m地加以塗設試料1 4 化合物（D) 化合物（E)(固體分20%乳膠液）化合物（F) 化合物（G) 蒸餾水將上述加工液，呈厚0 . 5 // m地加以塗設。試料1 5 氧化錫溶膠分散液（多木化學公司製）相當粒子200g量明膠 10 · 〇g 化合物（G) 0 . lg 環己烷-1，6-雙（乙烯尿素） 0 · 8g 蒸餾水呈1 000ml處理將上述加工液，呈厚0 · 2 // m地加以塗設。 23 . Og 50 . Og 5 . Og 0 · lg 呈1 0 0 0 m 1處理化合物（A) —(-CH- CH— CH-)y ----------0-------IT------ (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製馔 _ oo \ 〇〇 \ σ > σ > a \ side thin light un υη KO un uo un l〇l〇cn un s CO s ί〇ν〇cn ί〇ι〇ν / Ί CO cn cn OQ cn cn cn CN CN CN] _ Β de ^ isooo 〇ii f 1 t—H Ο Ο un Lai S ο cn C < 1 CN CNI o CN CN o 〇 \ 〇O oo 〇〇r-H Ο CN1 ο C ^ l Ο νΤΊ CNI C U μ oo UO OO g OO oo OO sv〇vo ov〇νο οο SS ΟΟ οο Η- < PQ < PQ CJ UU u < < < _ Μ to touch cn CNl cn C < l mouth On \ H cn un C < 1 cn r H oo CN oo c ^ · oo g cn3 CN cn α \ CNI CO if 1 Forget Q Country ξ On 〇CN o cn S 〇U-) s § S o OO i—H 〇1— < go 〇 \ oo inch τ—H 〇τ—Η S Ο οο S ο Bu S § Back to S un CO cn irS wn cn on cn wn υη cn cn un it—i CN O) CN 〇jm cn Ο p Ο Μ 鲣 S »r—HC ^ l cn inch VO oo oo σ > Ο ^ i CS Gong! I CNl cn inch un a oo a \ Ο i ^ CN (Please read the precautions on the back before filling this page ) 、 1Τ 线 # · This paper size applies to China National Standard (CNS) A4 (210X297 mm) -25- 1227795 A7 B7 ___ V. Description of the invention (23) (Please read the precautions on the back before filling out this page) As can be understood from Table 1, when the polyester film of the present invention is used as a separation film for polarizing plates, the optical Excellent characteristics and workability for failure detection of product inspection. Example 2 On the opposite side to the surface of the polarizing plate of the polyethylene terephthalate film N ◦ 1 produced in Example 1, the same conductive layer was applied except that the following conductive layer was applied, and the same was produced. Samples of polarizing plate N ◦ · 1 to 15 [Coating of conductive layer] After coating the bottom layer of the polyethylene terephthalate film N ο · 1, the conductive layer is coated. (Mat bottom) Acrylic copolymer latex (30% by weight of butyl acrylate / 20% by weight of t-butyl acrylate / 25% by weight of hydroxyacrylate / 25% by weight of styrene was 0.2 thick // m to be painted. (Conductive layer) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 3 · lg 〇 · 2g 〇 · 3g 0. 1 1000ml on the bottom of the aforementioned pad, each with the following conductive Layer, making samples Ν ο · 1 2 to 1 4 Samples 1 3 Compound (A) Compound (B) Compound (C) Shi Xi fine particles (2 to 3 // m) Distilled water This paper applies Chinese national standard (CNS) A4 Specifications (210X297 mm) -26-1227795 A7 B7 V. Description of the invention (24) The above processing fluid is coated to a thickness of 0.1 / 1 // m. Sample 1 4 Compound (D) Compound (E) (solid content 20% latex) Compound (F) Compound (G) Distilled water was used to coat the above-mentioned processing solution to a thickness of 0.5 // m. Sample 1 5 Tin oxide sol dispersion (manufactured by Taki Chemical Co., Ltd.) 200g of equivalent particles Amount of gelatin 10 · 〇g Compound (G) 0. lg Cyclohexane-1,6-bis (ethylene urea) 0 · 8 g Distilled water was treated with 1,000 ml. The above-mentioned processing liquid was applied in a thickness of 0 · 2 // m. 23. Og 50. Og 5. Og 0 · lg was treated with 1 0 0 0 m 1-Compound (A)-( -CH- CH— CH-) y ---------- 0 ------- IT ------ (Please read the precautions on the back before filling this page) Ministry of Economy Wisdom Printed by the Property Agency Staff Consumer Cooperative

X X：CO〇H or COONa Y:C00Na or C00CH2CF2CF2h 化合物（B) 化合物（c) H19C9X X: CO〇H or COONa Y: C00Na or C00CH2CF2CF2h Compound (B) Compound (c) H19C9

C9H19 o-f CH2CH2〇|^- SO3N2 ch3sojch2)3so3ch3 本紙張尺度適用中國國家標準（cns ) A4規格（210X297公釐） -27- 1227795 A7 B7 五、發明説明（2冷化合物（D)C9H19 o-f CH2CH2〇 | ^-SO3N2 ch3sojch2) 3so3ch3 This paper size applies to Chinese national standard (cns) A4 specification (210X297 mm) -27-1227795 A7 B7 V. Description of the invention (2 cold compound (D)

COOHCOOH

COOH X：y=75:25平均分子量5,000 化合物（E) ^如τ 钟 H2T。於H2iH。故 H2TiiCHrti4HS p:q:r:s:t=40:5:10:5:40 (重量比）化合物（F) CHCH2OCH2CHCH2OCH2CH—^ch2I ° och2^h-ch2ο (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 ς^2—chch2och2chch2och2ch~-ch2 Ο ΟΗ \〇 q^2"^CHCH2OCH2J；HCH2OCH2j；HCH2OCH2C^"^CH2 0Η OCH2qH-CH2ο Ο 3種(7)混合物化合物（G) C9H1COOH X: y = 75: 25 Compound (E) with an average molecular weight of 5,000, such as τ clock H2T. In H2iH. Therefore H2TiiCHrti4HS p: q: r: s: t = 40: 5: 10: 5: 40 (weight ratio) Compound (F) CHCH2OCH2CHCH2OCH2CH— ^ ch2I ° och2 ^ h-ch2ο (Please read the precautions on the back before filling in this Page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs ^ 2—chch2och2chch2och2ch ~ -ch2 Ο ΟΗ \ 〇q ^ 2 " ^ CHCH2OCH2J; HCH2OCH2j; HCH2OCH2C ^ " ^ CH2 0Η OCH2qH-CH2ο 〇 3 kinds (7) mixture Compound (G) C9H1

C9H19 〇( CH2CH2〇)i2S03Na 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -28- 1227795 A7 B7 五、發明説明（2合對於偏光板試料Ν ο · 1及如上述所製作之偏光板試 (請先閲讀背面之注意事項再填寫本頁) 料號碼1 3至1 5 ，進行以上記載之評估。該結果示於表 2。 (評估方法）< 表面比阻抗之測定> 對於偏光板1及1 3至1 5，於2 3 °C、2 5 % R Η 之條件，2 4小時調濕之後，於同條件下，使用川口電氣公司製TERAOMMETER (VE — 30)，於施加電壓1〇〇 V測定表面比阻抗。 <塵埃附著測定> 對於偏光板1及1 3至1 5，進行以下之塵埃附著性能之評估。於2 3 °C、2 5 % R Η之條件，2 4小時調濕之後，於同條件下，將試料之表面，以橡膠輥滾動數次，附上煙灰對於偏光板試料是否會附上，根據下述·之評估力口以調查。 A :接近至lcm亦不會附著 A B :接近1至4 c m時會附著 B :接近4至1 0 c m時會附著經濟部智慧財產局員工消費合作社印製 C : 1 〇 c m以上亦附著，B以上之時，爲實際上無障礙之程度。本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -29- 1227795 A7 B7 經濟部智慧財產局員工消費合作社印製五、發明説明（2分表C9H19 〇 (CH2CH2〇) i2S03Na This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) -28- 1227795 A7 B7 V. Description of the invention (2 for polarizing plate sample Ν ο · 1 and produced as above Polarizing plate test (please read the precautions on the back before filling out this page), and perform the above-mentioned evaluation with material numbers 1 3 to 15. The results are shown in Table 2. (Evaluation method) < Measurement of surface specific impedance >; For polarizing plates 1 and 1 3 to 15 under the conditions of 2 3 ° C, 25% R Η, and humidity adjustment for 24 hours, under the same conditions, use TERAOMMETER (VE — 30) manufactured by Kawaguchi Electric Co., Ltd., The specific surface impedance was measured at an applied voltage of 100 V. < Dust adhesion measurement > For the polarizing plates 1 and 13 to 15, the following dust adhesion performance was evaluated. At 2 3 ° C, 25% R Η Under the same conditions, after 24 hours of humidity adjustment, under the same conditions, roll the surface of the sample with a rubber roller for several times, and attach the soot to the polarizing plate sample. According to the evaluation of the following, you can investigate. A: It will not adhere to 1 cm, AB: It will adhere to 1 to 4 cm B: When it is nearly 4 to 10 cm, it will be printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. C: It will also be attached if it is above 10 cm. When it is above B, it will be practically accessible. ) A4 specifications (210X297 mm) -29- 1227795 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

試料 No. PET薄膜 No. 表面比抵抗 (Ω /□) 塵埃附著測試 1 1 6.8 X 1012 B 13 1 3.6 X 1011 AB 14 1 4.8 X 1010 A 15 1 8.6X 109 A 示於表2之結果係將本發明導電加工之聚酯薄膜做爲偏光板之分隔薄膜之時，在於光學特性上優異，可防止塵埃附著之故，於製品檢查之故障檢出作業性上爲優異者。【實施例3】〔分隔薄膜之製作〕 (聚對二苯甲酸乙二醇酯N 〇 . 1之製作）於1 0 0重量份對二甲苯酸二甲烷，6 3重量份乙二醇，2重量份二乙二醇，做爲酯交換觸媒，添加〇 · 〇 5 重量部醋酸鎂水合物，根據經常之方法，進行酯交換反應。於所得之生成物，添加0 · 0 5重量份三氧化銨，〇· 0 3重量份磷酸三甲基酯。接著，徐徐地加以昇溫，加以減壓，以2 8 0 °C、0 · 5 m m H g加以進行聚合，得固有粘度〇 · 7 0、融點（T Μ ) 2 6 1 °C、玻璃轉移溫度（T g ) 7 6 °C之聚對二苯甲酸乙二醇酯。本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） I---------0-------1T------ (請先閲讀背面之注意事項再填寫本頁) 30- 1227795 A7 B7 五、發明説明（ (請先閱讀背面之注意事項再填寫本頁) 更且，將聚對二苯甲酸乙二醇酯，以1 5 0 °C 8小時真空乾燥之後，使用押出機，以2 8 5 °C熔融押出，於 3 0 °C之冷卻鼓上，施加靜電地加以密著，得冷卻固化之未延伸薄片。將此未延伸薄片使用輥式縱延伸機，以8 5 °C於縱方向延伸1 · 2倍。表背面之溫度差係5 °C以內。將所得單軸定向使用弓形式橫延伸機，於9 5 °C在於橫方向，延伸4 · 5倍。接著，於7 0 °C進行2秒間熱處理，更且於第1熱固定區，以1 5 0 °C進行1 〇秒間熱固定，於第2熱固定區，以1 8 0 °C 1 5秒間熱固定，接著以1 6 0 °C於橫方向驰緩處理加以捲取，製作橫方向之長 1 5 0 〇mm、厚4 0 //m之雙軸定向聚對二苯甲酸乙二醇酯（聚對二苯甲酸乙二醇酯）薄膜N〇.1。 (聚對二苯甲酸乙二醇酯薄膜N 〇 · 2至1 '6之製作）於聚對二苯甲酸乙二醇酯薄膜Ν ο · 1之製膜，將縱橫之延伸倍率、熱回定溫度示於表1加以變化製作之外，同樣地製作聚對二苯甲酸乙二醇酯薄膜Ν 〇 · 2至1 6。【偏光子及保護薄膜之製作】經濟部智慧財產局員工消費合作社印製將厚1 2 0 // m之聚乙一醇薄膜，浸漬於包含1重量份溴、2重量份溴化鉀、4重量份硼酸的水溶液，以5 0 °C 4含延伸製作偏光膜薄膜。 CONIKA公司製之厚8 0 //m之TA C薄膜（ CONIKATACK KC80UVS )，以 4 0 t：之 2 · 5 N —氫氧化鈉水溶液6 0秒間鹼處理，更且得水洗乾洗將表面鹼處理的T A C薄膜。本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -31 - A7 1227795 __ B7 五、發明説明（2会於前述偏光膜薄膜之兩面，將前TA C基台，令驗處理面，將完全鹼化型聚乙二醇5 %手溶液做爲黏著劑，由兩面貼合，製作偏光板。【偏光板試料Ν ο · 1至1 6之製作】於前述所製作之偏光板之一方之面，施以輕度之粘著加工後，將前述聚對二苯甲酸乙二醇酯薄膜Ν 〇 . 1做爲分隔薄膜加以貼合。於偏光板之相反面，施以同樣粘著加工後，將前述聚對二苯甲酸乙二醇酯薄膜Ν 〇 . 1做爲分隔薄膜加以貼合。此時皆正交偏光薄膜製作時之延伸方向和聚對二苯甲酸乙二醇酯薄膜之橫延伸方向地加以貼合。對於聚對二苯甲酸乙二醇酯薄膜Ν 〇 · 2至1 6亦同樣地自偏光板之兩面貼合，製作偏光板試料Ν ο · 1至1 2。· ’ 如以上地製作之偏光板試料Ν ο · 1至1 6 ，進行如以下記載之評估。該結果示於表1。 (評估方法）一熱收縮率- 對於聚對二苯甲酸乙二醇酯薄膜Ν 〇 . 1〜1 6 ，切出 15〇mmxl50mm 之樣本，於 23°C、55% R Η之條件下，調濕1日之後，進入1 〇〇 1Ή瓜間隔之框線。然後，於8 0 t進行3 0分間熱處理，更且測定於 2 3 °C、5 5 % R Η之條件下，調濕1日之後之框線間隔 °求得熱處理前後之框線間隔之差，以對於熱處理前之間隔1 0 0分率加以表示。然而，對於熱處理前，將收縮之方向呈+，延伸方向呈一。本紙張尺度適用中國國家標準（CNS) Μ規格（21〇χ297公釐）訂 Awl (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 -32 - 1227795 A7 ___B7 五、發明説明（3d> 一配向角一將聚對二苯甲酸乙二醇酯薄膜N 〇 . 1〜1 6之製膜 (請先閲讀背面之注意事項再填寫本頁) 後或切縫後，自薄膜之中央部，及薄膜兩端，以5 c m處爲中心，取樣寬方向7 c m、長方向1 〇 c m。將此使用「自動複折射計」（新王子製紙公司製KOBURA— 2 1 D Η 型），測定配向角。然後，將中央部和兩端之配向角之差之絕對値之平均値呈「配向角之差」。 -交叉偏光濃度之測定- 對於偏光板試料Ν ο 1〜1 6，將各2枚偏光板之光軸呈正交狀態地重合（交叉偏光狀態），使用濃度計（大日本印刷製造公司製D Μ 5 0 0 )，測定光學濃度。交叉偏光狀態之光學濃度愈高，偏光板之製品檢查時之亮點故障愈易發現，作業性則佳。做爲光學濃度以 3 · 0以上爲佳。 -干涉斑紋之評估- 經濟部智慧財產局員工消費合作社印製對於偏光板試料Ν ◦ 1〜1 6 ，將各2枚偏光板之光軸呈正交狀態地重合（交叉偏光狀態），置於觀察台上，將於偏光板上所見之干涉斑紋之狀態，以目視觀察。干涉斑紋之產生係妨礙偏光板之亮點異物檢查，較少者則於製品檢查時之歐業性爲優。 A :完全無干涉斑紋 B :可視得若干干涉斑紋，但無問題。 C :可視得多數干涉斑紋，難以作業。 B以上之時，在於作業上無問題。本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） -33- 1227795 A7 B7 五、發明説明（31) -平面性評估- 將偏光板試料N ◦ 1〜1 6切出.6〇c m X 1〇〇 m凸 C 凹長 X 寬上台之異優性面平於置載之台基估評Sample No. PET film No. Surface specific resistance (Ω / □) Dust adhesion test 1 1 6.8 X 1012 B 13 1 3.6 X 1011 AB 14 1 4.8 X 1010 A 15 1 8.6X 109 A The results shown in Table 2 are shown in Table 2. When the conductively processed polyester film of the present invention is used as a separator film of a polarizing plate, it is excellent in optical characteristics, prevents dust from adhering, and is excellent in fault detection workability of product inspection. [Example 3] [Production of separation film] (Production of polyethylene terephthalate N 0.1) In 100 parts by weight of dimethyl p-xylate, 6 3 parts by weight of ethylene glycol, 2 As a transesterification catalyst, a part by weight of diethylene glycol was added, and 0.05 part by weight of magnesium acetate hydrate was added, and a transesterification reaction was performed according to a usual method. To the resulting product, 0.05 parts by weight of ammonium trioxide and 0.3 parts by weight of trimethyl phosphate were added. Next, the temperature was gradually increased, the pressure was reduced, and polymerization was performed at 280 ° C and 0.5 mm H g to obtain an intrinsic viscosity of 0.7, a melting point (TM) of 2 61 ° C, and glass transition. Polyethylene terephthalate at a temperature (T g) of 7 6 ° C. This paper size applies to Chinese National Standard (CNS) A4 specification (210X297 mm) I --------- 0 ------- 1T ------ (Please read the precautions on the back first Fill out this page again) 30- 1227795 A7 B7 V. Description of the invention ((Please read the precautions on the back before filling out this page) Furthermore, the polyethylene terephthalate is heated at 150 ° C for 8 hours After vacuum drying, use an extruder to melt and extrude at 2 8 ° C, and apply static electricity on a cooling drum at 30 ° C to obtain a solidified unstretched sheet that is cooled and solidified. This unstretched sheet is roll-typed. Longitudinal stretcher, extending 1 · 2 times in the longitudinal direction at 8 5 ° C. The temperature difference between the front and back surfaces is within 5 ° C. The obtained uniaxial orientation is in the form of a bow stretcher at 9 5 ° C. The extension is 4.5 times. Then, heat treatment is performed at 70 ° C for 2 seconds, and the heat fixation is performed at 150 ° C for 10 seconds in the first heat-fixing zone, and at 18 ° C for the second heat-fixing zone. 0 ° C for 15 seconds, thermally fixed, then rolled at 160 ° C in the horizontal direction and rolled up to make a biaxially oriented pair of two with a length of 150 mm and a thickness of 4 0 // m in the horizontal direction. benzene Polyethylene formate (polyethylene terephthalate) film No. 1. (Production of polyethylene terephthalate film No. 0.2 to 1 '6) In polyethylene terephthalate A film of ethylene glycol film Ν ο · 1 was produced, and the vertical and horizontal stretching ratios and heat-returning temperatures were changed as shown in Table 1, and a polyethylene terephthalate film Ν 2 was produced in the same manner. To 16. [Production of polarized photon and protective film] Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, a polyethylene film with a thickness of 1 2 0 // m is impregnated with 1 part by weight of bromine and 2 parts by weight of brominated An aqueous solution of potassium and 4 parts by weight of boric acid was made at 50 ° C 4 to produce a polarizing film. Conika's TA C film (CONIKATACK KC80UVS) with a thickness of 8 0 // m was manufactured by 40 t: 2 · 5 N—Sodium hydroxide aqueous solution is treated with alkali in 60 seconds, and the surface is treated with TAC film which is washed and dry-cleaned. The paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) -31-A7 1227795 __ B7 5 2. Description of the invention (2 will be on both sides of the aforementioned polarizing film, the front TA C abutment, For the surface, a 5% hand solution of fully alkalized polyethylene glycol is used as an adhesive, and the two sides are laminated to make a polarizing plate. [Polarizing plate sample No. ο · 1 to 16] The polarizing light produced in the foregoing After one side of the board was subjected to a slight adhesion process, the aforementioned polyethylene terephthalate film No. 0.1 was laminated as a separation film. On the opposite side of the polarizing plate, after applying the same adhesion process, the aforementioned polyethylene terephthalate film No. 0.1 was used as a separation film and bonded. At this time, the extending direction of the orthogonal polarizing film and the lateral extending direction of the polyethylene terephthalate film were bonded together. Polyethylene terephthalate films N 0 · 2 to 16 were similarly bonded from both sides of the polarizing plate to prepare polarizing plate samples N 0 · 1 to 12. · 'The polarizing plate samples N ο produced as described above were evaluated from 1 to 16 as described below. The results are shown in Table 1. (Evaluation method)-Thermal shrinkage rate-For polyethylene terephthalate film No. 0.1 ~ 16, cut out a sample of 15mm × 150mm, adjust it at 23 ° C, 55% R Η After 1 day of wetness, enter the frame of the 2001 interval. Then, perform 30-minute heat treatment at 80 t, and further determine the difference between the frame line intervals before and after the heat treatment under the conditions of 2 3 ° C and 55% R Η, and the frame line interval after the humidity adjustment for 1 day. It is expressed as a score of 100 for the interval before the heat treatment. However, before the heat treatment, the direction of shrinkage is +, and the direction of extension is one. This paper size applies Chinese National Standards (CNS) M specifications (21 × 297 mm) Order Awl (Please read the notes on the back before filling out this page) Printed by the Intellectual Property Bureau Staff Consumer Cooperatives of the Ministry of Economics -32-1227795 A7 ___B7 V. Description of the invention (3d > one orientation angle one film of polyethylene terephthalate film N 0.1 to 16 (please read the precautions on the back before filling this page) or after cutting From the central part of the film and the two ends of the film, with 5 cm as the center, take a sample of 7 cm in width and 10 cm in length. Use this "autobirefractometer" (KOBURA—New Oji Paper Co., Ltd. 2 1 D Η type), the alignment angle is measured. Then, the average 値 of the absolute difference between the alignment angles at the center and the two ends is referred to as the "difference in the alignment angle". ~ 16: The optical axes of the two polarizing plates are overlapped with each other in an orthogonal state (cross polarized state), and the optical density is measured using a densitometer (DM 50 0, manufactured by Dainippon Printing Manufacturing Co., Ltd.). The higher the optical density, the system of polarizing plate Bright spot failures during product inspections are easier to find, and workability is better. The optical density is better than 3 · 0.-Evaluation of interference speckles-Printed by the Consumers' Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs for polarizing plate samples ◦ 1 ~ 16, the optical axes of each of the two polarizers are orthogonally overlapped (cross polarized state), placed on an observation table, and the state of the interference fringes seen on the polarizers can be visually observed. The generation is obstructing the inspection of bright spots and foreign objects on the polarizer, and the lesser ones are superior in European quality when inspecting the product. A: No interference fringes at all B: Several interference fringes can be seen, but no problem. C: Many interference fringes can be seen It is difficult to operate. When it is above B, there is no problem in operation. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) -33- 1227795 A7 B7 V. Description of the invention (31)-Flatness evaluation -Cut out the polarizing plate sample N ◦ 1 ~ 16. 60cm X 100m convex C concave length X width

A . BA. B

C 。狀。合浪合不波密台呈台平體基與整與方合佳地不性些台面一基平有與 (請先閲讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -34- 1227795 at B7 五、發明説明（32 ) 經濟部智慧財產局員工消費合作社印製 C0 拉伸強度 kg /mm2 卜 r-j un VO \〇撒裂強侧 w) un un wn un un un un wo cn un un v〇 MD uo VO un v〇光霧 cn CO cn cn cn cn CO cn cn cn cn cn· 配向角侧〇〇 VO oo oo VO oo un oo vn oo VO oo oo 〇 s s S oo oo 平面性 < < < PQ < < < < U < < < < 干涉斑 < < < < < < < PQ < u u U < 交叉偏光濃度 3.23 3.25 3.24 3.26 3.20 3.23 3.25 3.17 3.13 2.63 2.58 2.38 3.23 配向角之差渡）〇\ CTs On oo oo un 25.6 r—< CN CO r—H cK CO oo 熱收縮率橫(％) 1.27 0.87 1.58 2.31 1.20 1.28 H i—H CN t—H ， H 0.78 0.45 0.48 0.58 0.78 縱(％) 0.68 0.48 0.51 0.72 0.69 0.56 0.51 0.67 0.48 0.35 0.42 0.23 0.45 熱固定溫度 (°C ) 〇 CN g T—< r—H r—i 〇 CN T- < τ-i g \ i g T—i g τ _ H CNl t—H 延伸倍率 un un wn un cn CO CO un v/S wn O) cn cn cn cn cn cn un 逛 g CN CN CN CTN CN v〇 CN cn cn CO cn 〇薄膜 Od CO 寸 un oo o r—H CO wn \〇試料 CN CO 寸 oo o r—H CN cn 寸丨本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 1T' -35- 1227795 A7 B7 五、發明説明（33) (請先閱讀背面之注意事項再填寫本頁) 可由表3得知，將本發明聚酯薄膜做爲分隔薄膜之時，在於光學特性上爲優，又於與偏光板貼合之後，平面性亦佳，對於製品檢查之故障檢出之作業性爲優異者。根據本發明時，可使成本便宜，光學向異性、干涉斑紋等爲少之光學特性優，偏光板之缺點檢查之作業性爲優，可於貼附狀態檢查，而減少偏光板之檢查時的繁雜工程。可提供偏光板用之分隔薄膜及偏光板單元者。【符號說明】 3 保護薄膜 4 黏著層 5 偏光薄膜 6 接著層 7 保護薄膜 8 黏著層 10 第1之分隔薄膜 11 黏著層經濟部智慧財產局員工消費合作社印製 12 第2之分隔薄膜 14 偏光板 16 偏光板單元本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -36-C. Like. The Helang Hebu Botai platform is flat and flat, and the surface is not good. (Please read the precautions on the back before filling out this page.) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Consumption Cooperative. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -34- 1227795 at B7 V. Description of invention (32) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economy C0 Tensile strength kg / mm2 bu rj un VO \ 〇Scattering strong side w) un un wn un un un wo wo cn un un v〇MD uo VO un v〇光雾 cn CO cn cn cn cn CO cn cn cn cn · Orientation angle side 〇〇VO oo oo VO oo un oo vn oo VO oo oo 〇ss S oo oo Flatness < < < PQ < < < < U < < < < Interference spot < < < < < < < PQ < uu U < cross-polarized light concentration 3.23 3.25 3.24 3.26 3.20 3.23 3.25 3.17 3.13 2.63 2.58 2.38 3.23 difference in alignment angle) 〇 \ CTs On oo oo un 25.6 r— < CN CO r—H cK CO oo Thermal shrinkage (%) 1.27 0.87 1.58 2.31 1.20 1.28 H i—H CN t H ， H 0.78 0.45 0.48 0.58 0.78 vertical (%) 0.68 0.48 0.51 0.72 0.69 0.56 0.51 0.67 0.48 0.35 0.42 0.23 0.45 heat fixing temperature (° C) 〇CN g T— < r—H r—i 〇CN T- < τ-ig \ ig T—ig τ _ H CNl t—H extension ratio un un wn un cn CO CO un v / S wn O) cn cn cn cn cn cn un gg CN CN CN CTN CN v〇CN cn cn CO cn 〇 Thin film Od CO inch un oo or—H CO wn \ 〇 sample CN CO inch oo or—H CN cn inch 丨 This paper size applies to China National Standard (CNS) A4 (210X297 mm) (Please read first Note on the back page, please fill in this page) 1T '-35- 1227795 A7 B7 V. Description of the invention (33) (Please read the note on the back page before filling out this page) Table 3 shows that the polyester film of the present invention is made When it is a separation film, it is excellent in optical characteristics, and also has good flatness after being bonded to a polarizing plate, and it is excellent in workability for fault detection of product inspection. According to the present invention, the cost can be reduced, the optical characteristics such as optical anisotropy and interference fringes are small, and the defects of the polarizing plate can be inspected with excellent workability. The inspection can be performed in the attached state, and the number of polarizing plates can be reduced. Complex projects. Separating films for polarizing plates and polarizing plate units are available. [Symbol description] 3 Protective film 4 Adhesive layer 5 Polarizing film 6 Next layer 7 Protective film 8 Adhesive layer 10 First separator film 11 Adhesive layer Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 12 Second separator film 14 Polarizer 16 Polarizer Unit This paper is sized for China National Standard (CNS) A4 (210X297 mm) -36-

Claims

1227795 Α8 Β8 C8 D8 VI. Application for Patent Scope No. 88 1 10904 Chinese Patent Application for Scope Amendment August 20, 1992 Amendment 1. A polarizing plate unit, which includes the first surface and the second surface. Surface polarizing film, a first protective film provided on the first surface of the polarizing film, a second protective film provided on the second surface of the polarizing film, and a first separating film provided on the first protective film, And the second polarizing plate unit provided on the second protective film, characterized in that the first protective film or the second protective film is a resin film, and the film thickness is 10-50 // m, the alignment angle of the aforementioned first separation film or the aforementioned second separation film is 80 degrees or more, extending from 1 to 0 to 2.5 times in the direction 1 and extending 2 in the direction orthogonal to this. For resin films with 5 to 7 · 0 times, the absolute 値 between the refractive index in the longitudinal direction and the refractive index in the transverse direction is 0 · 0 2 or more, the retardation is 50 nm or more, and the alignment angles at both ends and the center are The difference is between 0 and 10 degrees. 2 · If the polarizing plate unit described in item 1 of the scope of the patent application, the surface specific impedance of 2 3 and 2 5% RH of the first separation film or the second separation film is lx 1 〇12Ω / □ or less. This paper size applies Chinese National Standard (CNS) Α4 specification (210X297 mm) --------- II (Please read the notes on the back before filling this page) Order the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs Printed 1227795 A8 B8 C8 D8 6. Scope of patent application (please read the precautions on the back before filling out this page) 3 · If you apply for the polarizing plate unit described in item 1 of the patent scope, among which, the aforementioned first separation film Or the aforementioned second partition film is a resin film heat-fixed in a temperature range of (τ m-150) to (T m-2 5) ° C. 4 · The polarizing plate unit described in item 1 of the scope of patent application, wherein the first separation film or the second separation film is less than 50 nm. 5 · The polarizing plate unit described in item 1 of the scope of the patent application, wherein the first separation film or the second separation film is 8 0 // m, and the haze is 0.6% or less. 6 · The polarizing plate unit described in item 1 of the scope of the patent application, wherein the tearing strength in terms of 8 0 // m conversion of the first separation film or the second separation film is 40 g or more. 7 · The polarizing plate unit according to item 1 of the scope of patent application, wherein the tensile strength of the first partition film or the second partition film is 13 kg / mm2 or more. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 8 · If the polarizing plate unit described in item 1 of the scope of patent application, wherein the first separation film or the second separation film has a dynamic friction coefficient of 0.4 or less. 9. The polarizing plate unit described in item 1 of the scope of patent application, wherein the first separation film or the second separation film is a thermal shrinkage of 80 ° C and 30 minutes in the vertical and horizontal directions. 5% or less. 1 0 · The polarizing plate unit described in item 1 of the scope of the patent application, wherein the first separation film or the second separation film is selected from the paper standard to the Chinese National Standard (CNS) A4 (210 X 297 mm) -2- 1227795 A8 B8 C8 D8 Six, the scope of patent application is small ~ polypropylene film, polystyrene film, polyethylene film, polyester film. (Please read the precautions on the back before filling this page) 1 1 · If the polarizing plate unit described in item 2 of the scope of patent application, the + 'separation film of the first or the separation film of the second is selected from at least one Polypropylene film, polystyrene film, polyethylene film, polyester film. 1 2 · A liquid crystal display device, comprising a liquid crystal cell having a first surface and a second surface, and a first polarizing plate provided on the first surface of the liquid crystal cell, and The liquid crystal display device with the second polarizing plate on the second surface of the liquid crystal cell is characterized in that the first polarizing plate is more than the second polarizing plate. The first polarizing plate includes a first surface and The second surface polarizing film, a first protective film provided on the first surface of the polarizing film, a second protective film provided on the second surface of the polarizing film, and a separation film provided on the first protective film. The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs printed the aforementioned first and second protective films or separation films as resin films with a film thickness of 10 to 500 # m, and the orientation angle of the aforementioned separation film was 80 degrees or more, extending in 1 direction 1 _ 0 to 2 · 5 times, a resin film extending 2 · 5 to 7 · 0 times in a direction orthogonal to this, the absolute refractive index difference between the refractive index in the longitudinal direction and the refractive index in the transverse direction is 0 · 0. 2 or more, the retardation is 50 nm or more, and the ends and center are aligned The difference between this paper and the Chinese National Standard (CNS) A4 specification (2 丨 0, < 297 mm) -3- 1227795 A8 B8 C8 D8 patent application range of 0 to 10 degrees (please read the back first Please pay attention to this page, please fill in this page) Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs This paper is printed in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) -4-