JPH0511256A - Formation of spacer for liquid crystal panel - Google Patents
Formation of spacer for liquid crystal panelInfo
- Publication number
- JPH0511256A JPH0511256A JP16258591A JP16258591A JPH0511256A JP H0511256 A JPH0511256 A JP H0511256A JP 16258591 A JP16258591 A JP 16258591A JP 16258591 A JP16258591 A JP 16258591A JP H0511256 A JPH0511256 A JP H0511256A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal panel
- substrates
- stage
- spacer
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1339—Gaskets; Spacers; Sealing of cells
- G02F1/13392—Gaskets; Spacers; Sealing of cells spacers dispersed on the cell substrate, e.g. spherical particles, microfibres
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、液晶パネルを構成する
2枚の基板間に介在して両基板を支持する液晶パネル用
スペーサーの形成方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a spacer for a liquid crystal panel, which is interposed between two substrates constituting a liquid crystal panel and supports both substrates.
【0002】[0002]
【従来の技術】液晶パネルは、画素電極、薄膜トランジ
スタ、MIM形成素子及びマトリクス配線等を備える下
側基板と、電極やカラーフイルター等を備える上側基板
とを対向させ、両基板間に液晶を封入して構成されてい
る。そして、従来は液晶層の厚さを決定するために、い
ずれかの基板上(両方の基板の場合も有る)に透明で、
円筒状もしくは粒状の微少なスペーサーを散布し、この
スペーサーを挟み込んで両方の基板を張り合わせてい
た。2. Description of the Related Art In a liquid crystal panel, a lower substrate having pixel electrodes, thin film transistors, MIM forming elements, matrix wiring, and the like is opposed to an upper substrate having electrodes, color filters, etc., and liquid crystal is sealed between both substrates. Is configured. And conventionally, in order to determine the thickness of the liquid crystal layer, it is transparent on either substrate (or both substrates in some cases),
Cylindrical or granular minute spacers were scattered, and the spacers were sandwiched between both substrates.
【0003】しかしながら、この方法によると、下側基
板の凸部(TFT、MIM型素子、電極配線部等)上に
散布された少数のスペーサーのみが上側基板に当たるた
め、この少数のスペーサーにより支持される部分に荷重
が集中し、素子や電極に損害を与えることがあつた。However, according to this method, only a small number of spacers scattered on the convex portion (TFT, MIM type element, electrode wiring portion, etc.) of the lower substrate hits the upper substrate, so that it is supported by this small number of spacers. The load concentrates on the parts that are damaged, which may damage the elements and electrodes.
【0004】スペーサーにより支持される部分に集中す
る荷重の軽減を図るために、スペーサーの散布密度を上
げることも考えられるが、この場合には、表示部にも多
数のスペーサーが散布されるためにコントラストが低下
するという問題があつた。In order to reduce the load concentrated on the portion supported by the spacers, it is possible to increase the dispersion density of the spacers. In this case, however, many spacers are also scattered on the display section. There was a problem that the contrast was lowered.
【0005】これらの問題を解決する方法として、特開
平3−89320号公報には、画素電極を備えた基板上
に、紫外線硬化型の樹脂を塗布し、画素電極上に位置し
ていない部分を硬化させ、その後、未硬化部分を除去し
て、スペーサーを形成する方法が開示されている。この
方法によれば、素子や配線の破壊が防止され、更にコン
トラストの高い液晶パネルを得ることができる。As a method for solving these problems, Japanese Patent Application Laid-Open No. 3-89320 discloses that a substrate having a pixel electrode is coated with an ultraviolet curable resin so that a portion not located on the pixel electrode is exposed. A method of curing and then removing the uncured portion to form a spacer is disclosed. According to this method, destruction of elements and wirings can be prevented, and a liquid crystal panel with higher contrast can be obtained.
【0006】しかしながら、この方法は、塗布・乾燥と
工程に時間がかかり、通常更に保護層を設けて露光時の
酸素の影響による感度低下を防止し、画線の再現性の悪
化を避け、製造得率の低下を防ぐ必要がある。また、ブ
ラツクストライプを有する側にスペーサーを作成する場
合には、溶剤により該感光性樹脂層に接する配向膜を侵
す危険がある。However, this method requires a long time for coating and drying and the process, and usually a protective layer is further provided to prevent the sensitivity from being lowered due to the influence of oxygen at the time of exposure, thereby avoiding the deterioration of the reproducibility of the image line. It is necessary to prevent a decrease in yield. Further, when the spacer is formed on the side having the black stripe, there is a risk that the solvent may attack the alignment film in contact with the photosensitive resin layer.
【0007】[0007]
【発明が解決しようとする課題】本発明の目的は、荷重
の集中が無く、画線の再現性に優れたスペーサーを、配
向膜等を侵す恐れが無く、かつ簡便な工程で形成する方
法を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a method for forming a spacer which is free from concentration of load and has excellent reproducibility of image lines in a simple process without fear of damaging an alignment film or the like. To provide.
【0008】[0008]
【課題を解決するための手段】本発明の目的は、液晶
パネルを構成する2枚の基板の少なくとも一方に、可撓
性支持体上に少なくとも露光時に実質的に酸素を遮断す
る有機高分子層、その上に水系現像液で現像可能な光重
合性樹脂層を設けた感光性シートをラミネートする工
程、必要に応じて該可撓性支持体を剥離し、該ラミネ
ートされた光重合性樹脂層の、画素電極に上に位置して
いない部分、もしくはカラーフイルターを構成するブラ
ツクストライプ上に位置している部分に対応する少なく
とも一部にパターン露光して硬化させる工程、現像に
より未露光部分を除去する工程、を含むことを特徴とす
る液晶パネル用スペーサーの形成方法により達成され
た。以下に、本発明を詳細に説明する。An object of the present invention is to provide an organic polymer layer on at least one of two substrates constituting a liquid crystal panel, which is on a flexible support and at least substantially blocks oxygen during exposure. A step of laminating a photosensitive sheet on which a photopolymerizable resin layer developable with an aqueous developing solution is laminated, the flexible support is peeled off if necessary, and the laminated photopolymerizable resin layer , A step of pattern-exposing and curing at least a part corresponding to a part not located on the pixel electrode or a part located on the black stripe forming the color filter, and removing the unexposed part by development And a step of forming a spacer for a liquid crystal panel. The present invention will be described in detail below.
【0009】感光性シート材料に使用する可撓性支持体
としては、可撓性のあるプラスチツクフイルムを使用す
ることができ、中では、厚さ20〜200μmのポリエ
チレンテレフタレートフイルムが特に好ましい。As the flexible support used for the photosensitive sheet material, a flexible plastic film can be used. Among them, a polyethylene terephthalate film having a thickness of 20 to 200 μm is particularly preferable.
【0010】実質的に酸素を遮断する水溶性樹脂層とし
ては、特公昭56−40824号公報中に記載されてい
る種々の材料を使用することができる。As the water-soluble resin layer that substantially blocks oxygen, various materials described in JP-B-56-40824 can be used.
【0011】光重合性感光層としては、特公昭56−4
0824号公報、特願平2−235362号明細書及び
その中で引用されている公報に記載された、種々の光重
合性組成物を使用することができる。この感光層中に
は、必要に応じて顔料等を添加しても良い。As the photopolymerizable photosensitive layer, Japanese Patent Publication No. 56-4
Various photopolymerizable compositions described in Japanese Patent Application No. 0824, Japanese Patent Application No. 2-235362 and the publications cited therein can be used. A pigment or the like may be added to the photosensitive layer if necessary.
【0012】更に、必要に応じて、光重合性層上に保護
用のカバーフイルムを設けても良く、支持体と水溶性有
機高分子層の間に下塗層を設けても良い。以下、実施例
に基づき、本発明を更に詳細に説明するが、本発明は、
これらに限定されるものではない。Further, if necessary, a protective cover film may be provided on the photopolymerizable layer, and an undercoat layer may be provided between the support and the water-soluble organic polymer layer. Hereinafter, the present invention will be described in more detail with reference to Examples.
It is not limited to these.
【0013】[0013]
実施例1 特開平3ー89320号公報を参考にして、ガラス基板
の表面にゲート電極、画素電極、ソース電極、絶縁膜、
ドレイン電極及びパツシベーシヨン層等の構成を備え
た、下側基板を作成した。一方、下記構成の感光性シー
ト材料を作成した。100μmのポリエチレンテレフタ
レートフイルム上に、乾燥膜厚1.5μmになる様に、
ポリビニルアルコール(PVA205:クラレ(株)
製)を塗布した。その上に、下記処方の感光液を乾燥膜
厚7μmになる様に塗布した。Example 1 Referring to JP-A-3-89320, a gate electrode, a pixel electrode, a source electrode, an insulating film,
A lower substrate having a structure such as a drain electrode and a passivation layer was prepared. On the other hand, a photosensitive sheet material having the following constitution was prepared. On a polyethylene terephthalate film of 100 μm, a dry film thickness of 1.5 μm,
Polyvinyl alcohol (PVA205: Kuraray Co., Ltd.)
Manufactured). On top of that, a photosensitive solution having the following formulation was applied so as to have a dry film thickness of 7 μm.
【0014】 ベンジルメタクリレート/メタクリル酸共重合体(モル比=73/27、 粘度=0.12[MEK中、25℃]) 60g ペンタエリスリトールテトラアクリレート 50g ミヒラーズケトン 2.4g ロフインダイマー 2.5g メチルセロソルブアセテート 560g メチルエチルケトン 280gBenzyl methacrylate / methacrylic acid copolymer (molar ratio = 73/27, viscosity = 0.12 [in MEK, 25 ° C.]) 60 g pentaerythritol tetraacrylate 50 g Michler's ketone 2.4 g loffin dimer 2.5 g methyl cellosolve Acetate 560g Methyl ethyl ketone 280g
【0015】更にその上に、カバーフイルムとして、1
2μmのポリプロピレンフイルムをラミネートした。Furthermore, as a cover film, 1
A 2 μm polypropylene film was laminated.
【0016】この感光性シートを用いて、以下の様にし
てスペーサーを作成した。上記感光性シート材料のカバ
ーフイルムを剥し、下側基板のパツシベーシヨン膜上
に、大成ラミネータ社製ラミネータ(VP−II型)を
用い、加熱温度110℃、ローラー圧力2kg/cm、
搬送速度0.3m/分で感光層をラミネートし、ポリエ
チレンテレフタレートフイルムを剥離して、平滑な感光
層を設けた。次いで、ゲート電極とドレイン電極の交差
部分に、直径30μmのマスクを介してパターン露光
し、その後、pH10.8のアルカリ水溶液で現像して
未露光部を除去した。この様にして作成されたパターン
は、スペーサーとして間隔の精度が高く、強度も十分で
あり、更に、且つ加重を集中させないために十分な面積
を有するものであつた。Using this photosensitive sheet, spacers were prepared as follows. The cover film of the photosensitive sheet material is peeled off, and a laminator (VP-II type) manufactured by Taisei Laminator Co., Ltd. is used on the passivation film of the lower substrate, the heating temperature is 110 ° C., the roller pressure is 2 kg / cm,
The photosensitive layer was laminated at a conveying speed of 0.3 m / min, and the polyethylene terephthalate film was peeled off to form a smooth photosensitive layer. Next, the intersection of the gate electrode and the drain electrode was pattern-exposed through a mask having a diameter of 30 μm, and then developed with an alkaline aqueous solution of pH 10.8 to remove the unexposed portion. The pattern thus formed had a high accuracy of spacing as a spacer, sufficient strength, and had a sufficient area so as not to concentrate the weight.
【0017】[0017]
【発明の効果】本発明の方法によれば、スペーサーの一
部に加重を集中させることがなく、素子や電極等の破壊
防止、コントラストの低下防止を達成することができ
る。更に、スペーサーパターンの形状を変えることによ
り、毛細管現象による液晶の注入のし易さ、高価な液晶
の量の低減、パネルの大面積化を図ることが可能であ
る。According to the method of the present invention, it is possible to prevent the destruction of elements and electrodes and the deterioration of contrast without concentrating the weight on a part of the spacer. Furthermore, by changing the shape of the spacer pattern, it is possible to facilitate the injection of liquid crystal due to the capillary phenomenon, reduce the amount of expensive liquid crystal, and increase the area of the panel.
Claims (1)
在して両基板を支持する液晶パネル用スペーサーの形成
方法において、 該基板の少なくとも一方に、可撓性支持体上に少なく
とも露光時に実質的に酸素を遮断する有機高分子層、そ
の上に水系現像液で現像可能な光重合性樹脂層を設けた
感光性シートをラミネートする工程、 必要に応じて該可撓性支持体を剥離し、該ラミネート
された光重合性樹脂層の、画素電極上に位置していない
部分、もしくはカラーフイルターを構成するブラツクス
トライプ上に位置している部分に対応する少なくとも一
部にパターン露光して硬化させる工程、 現像により未露光部分を除去する工程、 を含むことを特徴とする液晶パネル用スペーサーの形成
方法。Claim: What is claimed is: 1. A method for forming a spacer for a liquid crystal panel, which supports both substrates by interposing them between two substrates constituting a liquid crystal panel, wherein at least one of the substrates has a flexible support. A step of laminating a photosensitive sheet having an organic polymer layer that substantially blocks oxygen at the time of exposure on the body and a photopolymerizable resin layer developable with an aqueous developer on the body, if necessary. At least a part of the laminated photopolymerizable resin layer, which is not located on the pixel electrode or is located on the black stripe forming the color filter, is peeled off from the flexible support. And a step of removing the unexposed portion by development, a method of forming a spacer for a liquid crystal panel, comprising:
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16258591A JP2648988B2 (en) | 1991-07-03 | 1991-07-03 | Method of forming spacer for liquid crystal panel |
DE19924221816 DE4221816A1 (en) | 1991-07-03 | 1992-07-03 | Mfg. spacer for LCD substrate plates - selectively exposing and developing photopolymerisable resin layer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16258591A JP2648988B2 (en) | 1991-07-03 | 1991-07-03 | Method of forming spacer for liquid crystal panel |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0511256A true JPH0511256A (en) | 1993-01-19 |
JP2648988B2 JP2648988B2 (en) | 1997-09-03 |
Family
ID=15757393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16258591A Expired - Fee Related JP2648988B2 (en) | 1991-07-03 | 1991-07-03 | Method of forming spacer for liquid crystal panel |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2648988B2 (en) |
DE (1) | DE4221816A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100451577B1 (en) * | 1999-09-29 | 2004-10-08 | 주식회사 엘지화학 | Photosensitive resin composition comprising multi-functional epoxy monomers |
US6825908B2 (en) | 2002-05-31 | 2004-11-30 | Fuji Photo Film Co., Ltd. | Apparatus and method of forming a spacer for a liquid crystal panel |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06347765A (en) * | 1993-06-04 | 1994-12-22 | Sharp Corp | Liquid crystal display device |
KR20050105571A (en) * | 2004-04-30 | 2005-11-04 | 엘지.필립스 엘시디 주식회사 | Method of fabricating the color filter substrate for liquid crystal display device |
-
1991
- 1991-07-03 JP JP16258591A patent/JP2648988B2/en not_active Expired - Fee Related
-
1992
- 1992-07-03 DE DE19924221816 patent/DE4221816A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100451577B1 (en) * | 1999-09-29 | 2004-10-08 | 주식회사 엘지화학 | Photosensitive resin composition comprising multi-functional epoxy monomers |
US6825908B2 (en) | 2002-05-31 | 2004-11-30 | Fuji Photo Film Co., Ltd. | Apparatus and method of forming a spacer for a liquid crystal panel |
Also Published As
Publication number | Publication date |
---|---|
DE4221816A1 (en) | 1993-01-07 |
JP2648988B2 (en) | 1997-09-03 |
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