JPH02191902A - Production of color filter - Google Patents
Production of color filterInfo
- Publication number
- JPH02191902A JPH02191902A JP1011606A JP1160689A JPH02191902A JP H02191902 A JPH02191902 A JP H02191902A JP 1011606 A JP1011606 A JP 1011606A JP 1160689 A JP1160689 A JP 1160689A JP H02191902 A JPH02191902 A JP H02191902A
- Authority
- JP
- Japan
- Prior art keywords
- color filter
- colored layer
- overcoat
- layer
- film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000001055 blue pigment Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000001056 green pigment Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000001054 red pigment Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Optical Filters (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は液晶電気光学素子などのカラーフィルターの製
造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a color filter such as a liquid crystal electro-optical element.
［従来の技術］
従来のカラーフィルターの製造方法では、着色層上のオ
ーバーコート層を、重合が完了していない樹脂材料や、
溶媒【二溶かした樹脂材料等を着色層上に塗布してから
硬化させる方法で形成していた。[Prior Art] In conventional methods of manufacturing color filters, the overcoat layer on the colored layer is made of a resin material whose polymerization has not been completed,
It was formed by applying a dissolved resin material onto the colored layer and then curing it.
〔発明が解決しようとする課題］
しかし、液状の樹脂材料を塗布する従来のオーバーコー
ト層の形成方法は、塗布方法の技術にもよるが概ね以下
のような問題があった。[Problems to be Solved by the Invention] However, the conventional method of forming an overcoat layer by applying a liquid resin material generally has the following problems, depending on the technique of the application method.
■ 塗布及び硬化のプロセスは時間がかかるため生産性
が悪い。■ The coating and curing process is time consuming, resulting in poor productivity.
■ 塗布方法によって程度が異なるが、樹脂材料の一部
は塗布の際に無駄に捨てられてしまう。■ The degree of damage varies depending on the application method, but some of the resin material is wasted during application.
無駄の量が多くなると結果的に価格が高くなってしまう
。If the amount of waste increases, the price will increase as a result.
■ カラーフィルターが大きくなるほどとｔ６−なオー
バーコート層を形成することが難しくなる。(2) The larger the color filter, the more difficult it becomes to form a t6-overcoat layer.
そこで本発明では、少なくとも、透明基体、赤、緑、青
の着色層、からなる透明基体に対して、着色層の上にオ
ーバーコート層を形成するのにフィルム状に成形した樹
脂を減圧雰囲気中で熱圧着させるという工程のオーバー
コート層形成法を提供することにより、表面平坦性に優
れたカラーフィルターの安価な作成法を提供することを
目的とするものである。Therefore, in the present invention, in order to form an overcoat layer on the transparent substrate and the colored layers of red, green, and blue, a resin molded into a film is placed in a reduced pressure atmosphere to form an overcoat layer on the colored layer. The object of the present invention is to provide an inexpensive method for producing a color filter with excellent surface flatness by providing a method for forming an overcoat layer, which includes a step of thermocompression bonding.
〔課題を解決するための手段］
本発明のカラーフィルターの製造方法は、少なくとも、
透明基体、赤、緑、青の着色層、からなる透明基体に対
して、着色層の上にｔ−バーコード層を形成するのにフ
ィルム状に成形した樹脂を減圧雰囲気中で熱圧着させる
こ仁を特徴とする。[Means for Solving the Problems] The method for manufacturing a color filter of the present invention includes at least the following steps:
To form a T-barcode layer on the colored layer, a resin molded into a film is bonded under heat and pressure in a reduced pressure atmosphere to a transparent substrate consisting of a transparent substrate and colored layers of red, green, and blue. Characterized by Jin.
以下、実施例により本発明の詳細を示す。Hereinafter, the details of the present invention will be shown by examples.
［実施例］
第２図に透明基体２０１上に着色層２０２を形成した状
態の模式図を示す。着色層は赤、緑、青の顔料をそれぞ
れ分散させた３種類のポリイミド樹脂を、オフセット印
刷法で透明基体上に形成させたものを用いたが、他のど
んな方法で作られたカラーフィルターでも同様に用いる
ことが可能である。[Example] FIG. 2 is a schematic diagram showing a state in which a colored layer 202 is formed on a transparent substrate 201. The colored layer was formed using three types of polyimide resin in which red, green, and blue pigments were dispersed, and was formed on a transparent substrate using an offset printing method, but color filters made by any other method can also be used. It can be used similarly.
この着色層の表面段差を測定すると最大で約３μｍの表
面段差があった。When the surface level difference of this colored layer was measured, there was a maximum surface level difference of about 3 μm.
次に、この着色層上に厚さ１０μｍのフィルム状に成形
したアクリル系のオーバーコートＩ！２０３を重ね、第
１図に示すような圧着装置１０１の上下の加圧板１０２
．１０３の間に挟んで固定した。加圧板は平坦性に極め
て優れた鉄製の板を用いてつくられており、特にオーバ
ーコート膜と接触する上側加圧板１０２はオーバーコー
ト膜と着色層を熱圧着した際にオーバーコート膜が加圧
板に密着してはがれなくなることを防ぐために表面にポ
リテトラフルオロエチレン（ＰＴＦＥ）をコーティング
して、さらに鏡面処理を施して仕上げである。この装置
全体を真空装置内で１０−’Ｔ。Next, an acrylic overcoat I! was formed into a film with a thickness of 10 μm on this colored layer. 203 and the upper and lower pressure plates 102 of the crimping device 101 as shown in FIG.
．． 103 and fixed it. The pressure plate is made using an iron plate with extremely excellent flatness, and in particular, the upper pressure plate 102 that comes into contact with the overcoat film is made of an iron plate that comes into contact with the overcoat film when the overcoat film and the colored layer are bonded by thermocompression. The surface is coated with polytetrafluoroethylene (PTFE) to prevent it from sticking and peeling off, and is finished with a mirror finish. The entire apparatus was placed in a vacuum apparatus for 10-'T.
ｒｒまで減圧した。着色層とオーバーコート膜とを密着
させた時に両者の界面に大気が残ると完全な密着が不可
能となりカラーフィルターの平坦化ができない。減圧の
目的は、この問題を防ぐために着色層とオーバーコート
膜の間に大気を残さないことを目的としている。The pressure was reduced to rr. When the colored layer and overcoat film are brought into close contact with each other, if air remains at the interface between the two, complete contact is impossible and the color filter cannot be flattened. The purpose of the reduced pressure is to leave no atmosphere between the colored layer and the overcoat film to prevent this problem.
次に、上下の加圧板番二〇、 ６ Ｋ ｇ ／ ｃ
ｍ ２の圧力前えながら加圧板内に内蔵したヒーター１
０４に電流を流し１６０°Ｃに加熱して４時間保持し着
色層とオーバーコート膜を熱圧着した。Next, press the upper and lower pressure plates number 20, 6 K g/c
Heater 1 built into the pressure plate while maintaining the pressure of m2
04 was heated to 160°C and held for 4 hours to bond the colored layer and overcoat film by thermocompression.
ガラス転移温度以上に加熱された熱可塑性のアクリル系
のオーバーコート膜は着色層と密着した。The thermoplastic acrylic overcoat film heated above the glass transition temperature adhered to the colored layer.
４時間の熱圧着後、加圧板の圧力は保持したままの状態
で真空装置内の気圧を大気圧に戻し、加熱を停止し圧着
装置の温度が室温になるまで徐冷した。After 4 hours of thermocompression bonding, the pressure inside the vacuum device was returned to atmospheric pressure while the pressure of the pressure plate was maintained, heating was stopped, and the pressure bonding device was slowly cooled until the temperature reached room temperature.
以上のようにして着色層にオーバーコート膜を密着させ
たカラーフィルターの模式図を第３図に示す。このカラ
ーフィルターの表面の段差を測定してみたところ表面は
最大段差は０．０１μｍ以下という極めて高い平坦性を
示した。FIG. 3 shows a schematic diagram of a color filter in which an overcoat film is adhered to a colored layer as described above. When the level difference on the surface of this color filter was measured, the surface showed extremely high flatness with a maximum level difference of 0.01 μm or less.
また、着色層とオーバーコート膜の密着強度は大きく、
このカラーフィルターを用いて液晶表示素子を試作した
が強度の不足は無かった。In addition, the adhesion strength between the colored layer and overcoat film is high,
A liquid crystal display element was prototyped using this color filter, but there was no lack of strength.
［発明の効果］
以上述べたように本発明の製造工程によれば、平坦性に
優れたカラーフィルターを安価に作成することができる
。[Effects of the Invention] As described above, according to the manufacturing process of the present invention, a color filter with excellent flatness can be produced at low cost.
第１図は本発明のカラーフィルターの製造方法に於ける
カラーフィルターの着色層とオーバーコート膜を熱圧着
の方法を表わす図である。
第２図は本発明の実施例に於けるオーバーコート層を形
成する前のカラーフィルターの模式図を表わす図である
。
第３図は本発明の実施例に於けるオーバーコート層を形
成したカラーフィルターの模式図を表わす図である。
１０１・・・圧着装置 １０２・・・上側加圧板
１０３・・・下側加圧板 １０４・・・ヒーター２
０１・・・透明基体 ２０３・・・オーバーコート膜
３０１・・・透明基体 ３０２・・・着色層３０３・
・・オーバーコート膜
以上
出願人 セイコーエプソン株式会社
代理人弁理士 鈴木喜三部（他Ｉ名）
第
肥
第
圓FIG. 1 is a diagram showing a method of thermocompression bonding a colored layer of a color filter and an overcoat film in the method of manufacturing a color filter of the present invention. FIG. 2 is a diagram showing a schematic diagram of a color filter before forming an overcoat layer in an example of the present invention. FIG. 3 is a diagram showing a schematic diagram of a color filter on which an overcoat layer is formed in an example of the present invention. 101... Crimping device 102... Upper pressure plate 103... Lower pressure plate 104... Heater 2
01...Transparent base 203...Overcoat film 301...Transparent base 302...Colored layer 303.
...Applicant for overcoat film and above Seiko Epson Co., Ltd. Representative Patent Attorney Kizobe Suzuki (and other I names) En Daihidai
Claims (1)
透明基体に対して、着色層の上にオーバーコート層を形
成するのにフィルム状に成形した樹脂を減圧雰囲気中で
熱圧着させることを特徴とするカラーフィルターの製造
方法。To form an overcoat layer on the colored layer, a resin molded into a film is thermocompressed in a reduced pressure atmosphere to a transparent substrate consisting of at least a transparent substrate and colored layers of red, green, and blue. A method for producing a color filter characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1011606A JPH02191902A (en) | 1989-01-20 | 1989-01-20 | Production of color filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1011606A JPH02191902A (en) | 1989-01-20 | 1989-01-20 | Production of color filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02191902A true JPH02191902A (en) | 1990-07-27 |
Family
ID=11782567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1011606A Pending JPH02191902A (en) | 1989-01-20 | 1989-01-20 | Production of color filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02191902A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6961178B2 (en) | 2001-04-06 | 2005-11-01 | Nitto Denko Corporation | Polarizing film, optical film and liquid crystal display using polarizing film |
| US7008504B2 (en) | 2001-04-06 | 2006-03-07 | Nitto Denko Corporation | Manufacturing method of polarizing film, polarizing film, optical film, and visual display |
-
1989
- 1989-01-20 JP JP1011606A patent/JPH02191902A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6961178B2 (en) | 2001-04-06 | 2005-11-01 | Nitto Denko Corporation | Polarizing film, optical film and liquid crystal display using polarizing film |
| US7008504B2 (en) | 2001-04-06 | 2006-03-07 | Nitto Denko Corporation | Manufacturing method of polarizing film, polarizing film, optical film, and visual display |
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