JP3316633B2 - Protective film for polarizing plate - Google Patents
Protective film for polarizing plateInfo
- Publication number
- JP3316633B2 JP3316633B2 JP26499692A JP26499692A JP3316633B2 JP 3316633 B2 JP3316633 B2 JP 3316633B2 JP 26499692 A JP26499692 A JP 26499692A JP 26499692 A JP26499692 A JP 26499692A JP 3316633 B2 JP3316633 B2 JP 3316633B2
- Authority
- JP
- Japan
- Prior art keywords
- protective film
- polarizing plate
- film
- hydrophilic
- derivative
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Polarising Elements (AREA)
- Surface Treatment Of Optical Elements (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は偏光板用保護フィルムに
関し、特に接着性に優れた偏光板用保護フィルムに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective film for a polarizing plate, and more particularly to a protective film for a polarizing plate having excellent adhesion.
【０００２】[0002]
【従来の技術】染色、一軸延伸されたポリビニルアルコ
ール膜（ＰＶＡ膜）の偏光子に、セルローストリアセテ
ートフィルムを保護フィルムとして貼り合わせた偏光フ
ィルムは、広く液晶表示素子として、電卓の表示部、パ
ソコンや液晶テレビ、自動車のディスプレイ等に利用さ
れている。2. Description of the Related Art A polarizing film obtained by bonding a cellulose triacetate film as a protective film to a dyed and uniaxially stretched polyvinyl alcohol film (PVA film) polarizer is widely used as a liquid crystal display element, a display section of a calculator, a personal computer, It is used for LCD televisions, car displays, and the like.
【０００３】之らディスプレイ素子の用途において、各
種環境下で高い信頼性と耐久性を発揮するために、偏光
子と保護フィルム間には強固な接着性が要求される。こ
の接着性を向上させる方法として、最も広く保護フィル
ムとして使用されるセルローストリアセテートフィルム
の場合、予めアルカリ液で表面のケン化処理を行い、し
かるのちにポリビニルアルコール系接着剤等で積層し偏
光フィルムとしている。[0003] In applications of display elements, strong adhesion is required between the polarizer and the protective film in order to exhibit high reliability and durability under various environments. As a method of improving this adhesiveness, in the case of a cellulose triacetate film most widely used as a protective film, the surface is saponified in advance with an alkali solution, and then laminated with a polyvinyl alcohol-based adhesive or the like to form a polarizing film. I have.
【０００４】しかし、上記アルカリ処理は高濃度アルカ
リ液を使用するため、作業安全上、又環境保全の上で好
ましくなく、更にアルカリ処理によって、可塑剤のブリ
ードアウトや、ヘイズが高くなるなど品質を落とすおそ
れがある。However, the above-mentioned alkali treatment uses a high-concentration alkaline solution, which is not preferable in terms of work safety and environmental protection. In addition, the alkali treatment results in poor quality such as bleed out of the plasticizer and high haze. There is a risk of dropping.
【０００５】又、アルカリ処理の前に帯電防止加工や、
ハードコート加工などの機能性付与の加工を行うと、ア
ルカリ処理によってその効果が減殺されるため、保護フ
ィルムの機能性付与はアルカリ処理後に限定される等の
問題がある。[0005] Before the alkali treatment, antistatic treatment,
When processing for imparting functionality such as hard coating is performed, the effect is reduced by the alkali treatment, and thus there is a problem that the imparting of functionality to the protective film is limited after the alkali treatment.
【０００６】[0006]
【発明の目的】本発明の目的は第１にＰＶＡ膜と接着し
易い偏光板用保護フィルムを提供することにある。第２
に作業上安全で環境に悪影響を及ぼさない加工により接
着性の優れた偏光板用保護フィルムを提供することにあ
る。第３に生産性の良い高品質の接着性に優れた偏光板
用保護フィルムを提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a protective film for a polarizing plate which is easily adhered to a PVA film. Second
Another object of the present invention is to provide a protective film for a polarizing plate having excellent adhesiveness by a process which is safe in operation and does not adversely affect the environment. Third, it is an object of the present invention to provide a polarizing plate protective film having good productivity and high quality and excellent adhesiveness.
【０００７】[0007]
【発明の構成】本発明の上記目的は以下の構成により達
成される。The above object of the present invention is attained by the following constitutions.
【０００８】１．染色、一軸延伸されたポリビニルアル
コールから成る偏光子に接着剤にて接着され、該接着剤
が付与される面に、親水性高分子化合物の溶媒溶液の塗
布により形成された層を予め有する偏光板用保護フィル
ムであって、該偏光板用保護フィルムがセルロースエス
テル、ポリカーボネート、ポリエチレンテレフタレート
及びポリアクリレートから選ばれる少なくとも１種であ
ることを特徴とする偏光板用保護フィルム。[0008] 1. Dyed, are bonded by an adhesive to the polarizer consisting of uniaxially stretched polyvinyl alcohol on the surface of adhesive is applied, the polarizing plate beforehand with a layer formed by coating a solvent solution of a hydrophilic polymer compound Protective film for polarizing plate, wherein the protective film for polarizing plate is
Ter, polycarbonate, polyethylene terephthalate
And at least one selected from polyacrylates and
A protective film for a polarizing plate .
【０００９】２．前記親水性高分子化合物が、親水性セ
ルロース誘導、ポリビニルアルコール誘導体、天然高分
子、親水性ポリエステル誘導体及び親水性ポリビニル誘
導体から選ばれる前記１記載の偏光板用保護フィルム。[0009] 2. The hydrophilic polymer compound is a hydrophilic cellulose derivative , a polyvinyl alcohol derivative, a natural polymer.
, Hydrophilic polyester derivative and hydrophilic polyvinyl derivative
2. The protective film for a polarizing plate according to the above 1, which is selected from conductors .
【００１０】[0010]
【００１１】[0011]
【００１２】[0012]
【００１３】[0013]
【００１４】以下本発明を更に詳しく説明する。Hereinafter, the present invention will be described in more detail.
【００１５】本発明に係る親水性高分子化合物として、
好ましくは親水性セルロース誘導体（例えば、メチルセ
ルロース、カルボキシメチルセルロース、ヒドロキシセ
ルロース等）、ポリビニルアルコール誘導体（例えば、
ポリビニルアルコール、酢酸ビニル-ビニルアルコール
共重合体、ポリビニルアセタール、ポリビニルホルマー
ル、ポリビニルベンザール等）、天然高分子化合物（例
えば、ゼラチン、カゼイン、アラビアゴム等）、親水性
ポリエステル誘導体（例えば、部分的にスルホン化され
たポリエチレンテレフタレート等）、ポリビニル誘導体
（例えば、ポリ-N-ビニルピロリドン、ポリアクリルア
ミド、ポリビニルイミダゾール、ポリビニルピラゾール
等）が挙げられる。As the hydrophilic polymer compound according to the present invention,
Preferably hydrophilic cellulose derivatives (eg, methylcellulose, carboxymethylcellulose, hydroxycellulose, etc.), polyvinyl alcohol derivatives (eg,
Polyvinyl alcohol, vinyl acetate-vinyl alcohol copolymer, polyvinyl acetal, polyvinyl formal, polyvinyl benzal, etc.), natural polymer compounds (eg, gelatin, casein, gum arabic, etc.), hydrophilic polyester derivatives (eg, partially Sulfonated polyethylene terephthalate, etc.) and polyvinyl derivatives (eg, poly-N-vinylpyrrolidone, polyacrylamide, polyvinylimidazole, polyvinylpyrazole, etc.).
【００１６】本発明に係る親水性高分子化合物は単独あ
るいは２種以上併用して用いられる。The hydrophilic polymer compound according to the present invention is used alone or in combination of two or more.
【００１７】本発明にかかる、前記親水性高分子化合物
の使用量は、10〜1000mg/m2であることが好ましく、更
には20〜300mg/m2であることが特にこのましい。[0017] according to the present invention, the amount of the hydrophilic polymer compound is preferably 10 to 1000 mg / m 2, more particularly preferably 20 to 300 mg / m 2.
【００１８】本発明において使用される保護フィルム
は、セルローストリアセテートが主であるが、セルロー
スジアセテート，セルロースアセテートブチレート，セ
ルロースプロピオネートなどのセルロースエステル，ポ
リカーボネート，ポリエチレンテレフタレート，ポリア
クリレートなども適用できる。厚みは特に制限はない
が、機能上および取扱い易さから10〜500μm、特に30〜
300μmが好ましい。保護フィルムには所望により紫外線
吸収剤、可塑剤、滑り剤、マット剤等を含有させてもよ
い。The protective film used in the present invention is mainly made of cellulose triacetate. However, cellulose esters such as cellulose diacetate, cellulose acetate butyrate, and cellulose propionate, polycarbonate, polyethylene terephthalate, and polyacrylate can also be used. . The thickness is not particularly limited, but is 10 to 500 μm, particularly 30 to
300 μm is preferred. If necessary, the protective film may contain an ultraviolet absorber, a plasticizer, a slipping agent, a matting agent, and the like.
【００１９】又、本発明に係るポリマー溶液はグラビア
コーター、デイップコーター、リバースロールコータ
ー、押し出しコーターなど公知の方法で塗布できる。本
発明に係るポリマーの付量は10〜1000mg/m2の範囲であ
り、特に安定な接着力、塗布後の仕上り性からみると20
〜300mg/m2が好ましい。該塗布液を塗布した後乾燥する
方法としては特に制限はないが乾燥後の残留溶媒量は５
wt％以下とするのが好ましい。残留溶媒量が多いと、偏
光子と積層された後の乾燥過程で接着界面に気泡を生じ
る場合があり好ましくない。The polymer solution according to the present invention can be applied by a known method such as a gravure coater, dip coater, reverse roll coater or extrusion coater. Amount with the polymer according to the present invention is in the range of 10 to 1000 mg / m 2, particularly stable adhesive strength, when viewed from the finished appearance after coating 20
~300mg / m 2 is preferred. The method of drying after applying the coating solution is not particularly limited, but the amount of residual solvent after drying is 5
It is preferred to be not more than wt%. If the amount of the residual solvent is large, air bubbles may be generated at the bonding interface during the drying process after lamination with the polarizer, which is not preferable.
【００２０】本発明に係るポリマー溶液には所望により
紫外線吸収剤、滑り剤、マット剤、帯電防止剤、架橋
剤、及び活性剤などを添加してもよい。The polymer solution according to the present invention may optionally contain an ultraviolet absorber, a slipping agent, a matting agent, an antistatic agent, a crosslinking agent, an activator, and the like.
【００２１】特に架橋剤は偏光子のポリビニルアルコー
ルフィルムとの接着を促進する上で好ましい。この様な
架橋剤としては、例えば多価のエポキシ化合物、アジリ
ジン化合物、イソシアネート化合物や、明バン、ホウ素
化合物などがあげられる。In particular, a cross-linking agent is preferable for promoting the adhesion of the polarizer to the polyvinyl alcohol film. Examples of such a cross-linking agent include a polyvalent epoxy compound, an aziridine compound, an isocyanate compound, a bright vane, and a boron compound.
【００２２】本発明に係る保護フィルムの処理面と、偏
光子を貼り合わせるのに使用される接着剤としては例え
ばポリビニルアルコール、ポリビニルブチラールなどの
ポリビニルアルコール系接着剤や、ポリブチルアクリレ
ートなどビニル系ラテックス等があげられる。Examples of the adhesive used for bonding the treated surface of the protective film according to the present invention to the polarizer include polyvinyl alcohol-based adhesives such as polyvinyl alcohol and polyvinyl butyral, and vinyl-based latexes such as polybutyl acrylate. And the like.
【００２３】[0023]
【実施例】以下に本発明の実施例を示すが、本発明はこ
れらの実施態様に限定されるものではない。EXAMPLES Examples of the present invention will be shown below, but the present invention is not limited to these embodiments.
【００２４】実施例１ 厚さ125μmのセルローストリアセテートフィルムの一方
の面に、下記組成の溶液を20g/m2の割合で塗布し、100
℃10分間乾燥した後、本発明に係るフィルムＡ，Ｂ，
Ｃ，ＤおよびＥを得た。Example 1 A solution having the following composition was applied at a rate of 20 g / m 2 to one surface of a cellulose triacetate film having a thickness of 125 μm,
After drying at 10 ° C. for 10 minutes, the films A, B, and
C, D and E were obtained.
【００２５】[0025]
【表１】 [Table 1]
【００２６】比較試料フィルム 厚さ125μmのセルローストリアセテートフィルムをフィ
ルムＦ、更にフィルムＦを15wt％のカセイソーダ溶液中
に70℃180秒間浸漬し、水洗後乾燥して得られたフィル
ムを試料フィルムＧとする。Comparative Sample Film A cellulose triacetate film having a thickness of 125 μm was immersed in a 15 wt% solution of caustic soda at 70 ° C. for 180 seconds, washed with water and dried, and the resulting film was used as a sample film G. .
【００２７】次に実施例１および比較試料フィルムのす
べての試料，フィルムＡ，Ｂ，Ｃ，Ｄ，Ｅ，ＦおよびＧ
を用いて接着テスト及び塗布性の評価を行った。又同時
に光線透過率を測定した。Next, all the samples of Example 1 and the comparative sample film, films A, B, C, D, E, F and G
Was used to evaluate the adhesion test and the applicability. At the same time, the light transmittance was measured.
【００２８】結果は以下表２に示す。The results are shown in Table 2 below.
【００２９】[0029]
【表２】 [Table 2]
【００３０】以上のように、本発明フィルムＡ〜Ｅはア
ルカリ処理を行うことなく良好な接着剤の塗布性と接着
性を示す。As described above, the films A to E of the present invention show good adhesive applicability and adhesiveness without performing alkali treatment.
【００３１】又可塑剤のブリードアウトもなく優れた透
過性能も有す。It also has excellent permeation performance without bleed-out of the plasticizer.
【００３２】尚評価方法、基準は以下の要領で行った。The evaluation method and criteria were as follows.
【００３３】固形分10wt％のポリブチルアクリレートラ
テックスをワイヤバーにて試料フィルムにウェット膜厚
20μmで塗布し、その面に偏光子フィルムを貼り合わせ
評価する。A polybutyl acrylate latex having a solid content of 10 wt% was wet-coated on a sample film with a wire bar.
It is applied with a thickness of 20 μm, and a polarizer film is adhered to the surface and evaluated.
【００３４】（塗布性）塗布性は試料フィルム上にポリ
ブチルアクリレートラテックスを塗布したときの接着剤
の濡れで評価する。(Applicability) The applicability is evaluated by the wetting of the adhesive when the polybutyl acrylate latex is applied on the sample film.
【００３５】○：接着剤が均一にむらなく濡れる ×：はじきやむらを生じる （接着性）接着性は偏光子と貼り合わせ、24時間後の状
態を観察する。：: The adhesive is uniformly and uniformly wetted. X: Repelling and unevenness occur. (Adhesiveness) The adhesiveness is adhered to a polarizer, and the state after 24 hours is observed.
【００３６】○：貼り合わせた試料フィルムと偏光子フ
ィルムの端部でハガレが認められない △：ハガレが５mm未満〜１mm以上 ×：ハガレが５mm以上認められる 〈透過率〉試料フィルムを１枚、島津製作所（株）製Ｍ
ＰＳ−2000を用い、波長350〜700nmの範囲で測定し、そ
の時の透過率を％で表わす。：: No peeling was observed at the end of the bonded sample film and the polarizer film. Δ: Peeling was less than 5 mm to 1 mm or more. X: Peeling was found to be 5 mm or more. <Transmission> One sample film M made by Shimadzu Corporation
The transmittance was measured in the range of 350 to 700 nm using PS-2000, and the transmittance at that time is expressed in%.
【００３７】[0037]
【発明の効果】本発明による偏光板用保護フィルムは偏
光フィルムに使用されるＰＶＡ膜と接着性が優れてお
り、作業上安全で環境に悪影響を及ぼさなく、生産性の
良好な高品質で接着性に優れたものである。Industrial Applicability The protective film for a polarizing plate according to the present invention has excellent adhesiveness to a PVA film used for a polarizing film, is safe in operation, does not adversely affect the environment, and has high productivity and good adhesion. It has excellent properties.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−64703（ＪＰ，Ａ) 特開 平２−135402（ＪＰ，Ａ) 特開 平３−130702（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) G02B 5/30 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-64703 (JP, A) JP-A-2-135402 (JP, A) JP-A-3-130702 (JP, A) (58) Field (Int.Cl. 7 , DB name) G02B 5/30
Claims (2)
ールから成る偏光子に接着剤にて接着され、該接着剤が
付与される面に、親水性高分子化合物の溶媒溶液の塗布
により形成された層を予め有する偏光板用保護フィルム
であって、該偏光板用保護フィルムがセルロースエステ
ル、ポリカーボネート、ポリエチレンテレフタレート及
びポリアクリレートから選ばれる少なくとも１種である
ことを特徴とする偏光板用保護フィルム。1. A layer formed by applying a solvent solution of a hydrophilic polymer compound to a surface of a dyed and uniaxially stretched polarizer made of polyvinyl alcohol, which is adhered with an adhesive to the surface to which the adhesive is applied. advance protective film for polarizing plate that have a
The protective film for a polarizing plate is a cellulose ester.
, Polycarbonate, polyethylene terephthalate and
And at least one selected from polyacrylates
A protective film for a polarizing plate, comprising:
ロース誘導体、ポリビニルアルコール誘導体、天然高分
子、親水性ポリエステル誘導体及び親水性ポリビニル誘
導体から選ばれることを特徴とする請求項１記載の偏光
板用保護フィルム。2. The method according to claim 1, wherein the hydrophilic polymer compound is a hydrophilic cellulose derivative , a polyvinyl alcohol derivative, a natural polymer.
, Hydrophilic polyester derivative and hydrophilic polyvinyl derivative
The protective film for a polarizing plate according to claim 1, wherein the protective film is selected from conductors .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26499692A JP3316633B2 (en) | 1992-10-02 | 1992-10-02 | Protective film for polarizing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26499692A JP3316633B2 (en) | 1992-10-02 | 1992-10-02 | Protective film for polarizing plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06118232A JPH06118232A (en) | 1994-04-28 |
| JP3316633B2 true JP3316633B2 (en) | 2002-08-19 |
Family
ID=17411123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26499692A Expired - Lifetime JP3316633B2 (en) | 1992-10-02 | 1992-10-02 | Protective film for polarizing plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3316633B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016179695A (en) * | 2016-07-11 | 2016-10-13 | 三菱樹脂株式会社 | Laminate polyethylene terephthalate film |
| JP2016199046A (en) * | 2016-07-11 | 2016-12-01 | 三菱樹脂株式会社 | Laminated polyester film |
| JP2018158577A (en) * | 2018-05-21 | 2018-10-11 | 三菱ケミカル株式会社 | Laminated polyester film |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4689128B2 (en) * | 1999-12-28 | 2011-05-25 | グンゼ株式会社 | Polarizing plate and manufacturing method thereof |
| CN1221818C (en) * | 1999-12-28 | 2005-10-05 | 官支株式会社 | Polarizing plate |
| JP4737867B2 (en) * | 2001-05-11 | 2011-08-03 | 株式会社カネカ | Transparent composite film, polarizer protective film, polarizing film, and liquid crystal display device |
| TW200712579A (en) | 2005-08-12 | 2007-04-01 | Dainippon Printing Co Ltd | Protective film for polarizing plate and polarizing plate |
| JP2007056093A (en) * | 2005-08-23 | 2007-03-08 | Konica Minolta Opto Inc | Method for producing optical cellulose ester film for display, optical cellulose ester film for display, polarizing plate and liquid crystal display device |
| CN101346217B (en) | 2005-12-26 | 2011-08-31 | 柯尼卡美能达精密光学株式会社 | Manufacturing method of cellulose film, manufacturing apparatus, optical film manufactured by the manufacturing apparatus, polarizing plate using the optical film, and liquid crystal display device |
| JPWO2007119421A1 (en) | 2006-03-31 | 2009-08-27 | コニカミノルタオプト株式会社 | Film for display device, polarizing plate and method for producing the same, liquid crystal display device |
| CN101427164B (en) | 2006-04-25 | 2011-04-06 | 柯尼卡美能达精密光学株式会社 | Polarizing plate protection film, method for producing the same, polarizing plate and liquid crystal display |
| WO2008010421A1 (en) | 2006-07-21 | 2008-01-24 | Konica Minolta Opto, Inc. | Optical film, process for producing the same, polarizing plate and liquid crystal display device |
| EP2048525A4 (en) | 2006-07-31 | 2010-11-10 | Konica Minolta Opto Inc | Process for producing optical film, optical film, and polarization plate or image display unit utilizing the same |
| KR101618870B1 (en) | 2008-05-15 | 2016-05-09 | 후지필름 가부시키가이샤 | Cellulose ester film, retardation film, polarizing plate and liquid crystal display device |
| JP5410771B2 (en) * | 2009-02-03 | 2014-02-05 | 株式会社ジロオコーポレートプラン | Polarizer outer surface protective film, polarizing plate, and liquid crystal display element |
| JP5243343B2 (en) * | 2009-02-03 | 2013-07-24 | 株式会社ジロオコーポレートプラン | Polarizer outer surface protective film, polarizing plate, and liquid crystal display element |
| JP2016191944A (en) * | 2016-07-11 | 2016-11-10 | 三菱樹脂株式会社 | Laminated polyester film for polarizing film protective film |
| JP6717342B2 (en) * | 2018-06-15 | 2020-07-01 | 三菱ケミカル株式会社 | Polarizer |
-
1992
- 1992-10-02 JP JP26499692A patent/JP3316633B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016179695A (en) * | 2016-07-11 | 2016-10-13 | 三菱樹脂株式会社 | Laminate polyethylene terephthalate film |
| JP2016199046A (en) * | 2016-07-11 | 2016-12-01 | 三菱樹脂株式会社 | Laminated polyester film |
| JP2018158577A (en) * | 2018-05-21 | 2018-10-11 | 三菱ケミカル株式会社 | Laminated polyester film |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06118232A (en) | 1994-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3316633B2 (en) | Protective film for polarizing plate | |
| JP2001350021A (en) | Thin optical laminate and manufacturing method thereof | |
| JP2017142347A (en) | Polarizing film with small shrinkage stress and method for producing the same | |
| JPH07198945A (en) | Polarizer | |
| TWI729183B (en) | Polarizing plate and preparing method for the same | |
| JP2001343522A (en) | Polarizing film and manufacturing method thereof | |
| JP4849665B2 (en) | Polarizer protective film, polarizing plate, and image display device | |
| JP3401682B2 (en) | Protective film for polarizing plate | |
| JP2022008895A (en) | Method for manufacturing polarizing film | |
| CN101228462A (en) | Polarizing plate and image display device | |
| JP7199343B2 (en) | Polarizing film, polarizing plate, and manufacturing method thereof | |
| KR20130025321A (en) | A polarizing plate and liquid crystal display comprising the same | |
| JPH07134212A (en) | Polarizer | |
| JPH07306316A (en) | Polarizing plate manufacturing method | |
| JP3878693B2 (en) | Polarizing plate and liquid crystal display device using the same | |
| KR101781167B1 (en) | Adhesive composition, polarizing plate and image display device using the same | |
| JP3602555B2 (en) | Liquid crystal display | |
| JP3148513B2 (en) | Manufacturing method of polarizing plate | |
| JP3521355B2 (en) | Protective film for polarizing plate | |
| JP4378739B2 (en) | Manufacturing method of polarizing plate | |
| JP5956276B2 (en) | Manufacturing method of polarizing film | |
| KR102411225B1 (en) | Polarizing film | |
| KR20140142766A (en) | Composition for polymethylmethacrylate film and polarizing plate using the same | |
| WO2019188735A1 (en) | Method for manufacturing polarizer | |
| JP2779413B2 (en) | Manufacturing method of polarizing plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080614 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090614 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100614 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100614 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110614 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110614 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120614 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130614 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130614 Year of fee payment: 11 |