JP2536457B2 - Liquid crystal display manufacturing method - Google Patents
Liquid crystal display manufacturing methodInfo
- Publication number
- JP2536457B2 JP2536457B2 JP6163071A JP16307194A JP2536457B2 JP 2536457 B2 JP2536457 B2 JP 2536457B2 JP 6163071 A JP6163071 A JP 6163071A JP 16307194 A JP16307194 A JP 16307194A JP 2536457 B2 JP2536457 B2 JP 2536457B2
- Authority
- JP
- Japan
- Prior art keywords
- color filter
- substrate
- liquid crystal
- crystal display
- filter substrate
- 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 - Fee Related
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
- G02F1/13392—Gaskets; Spacers; Sealing of cells spacers dispersed on the cell substrate, e.g. spherical particles, microfibres
Landscapes
- Liquid Crystal (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液晶表示装置の製造方
法に関し、特にセル内間隔を均一に保持するためのスペ
ーサの配置を行う液晶表示装置の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a liquid crystal display device, and more particularly to a method for manufacturing a liquid crystal display device in which spacers are arranged to keep uniform cell spacing.
【０００２】[0002]
【従来の技術】従来、液晶表示装置を製造するには、図
３に示すように、ガラス基板上（１）に、ブラックマト
リックス（２）、カラーフィルタ（３）、共通電極
（４）、配向膜（５）を積層したカラーフィルタ基板
（６）上に、セル内間隔を一定に保持するための直径が
３〜１０μｍの範囲で径の揃った球状、又は円柱状のス
ペーサ（７）を散布する（図３（ａ））。そして、この
上に薄膜信号線（８）と表示画素部（９）をアレイ状に
配置した電極基板（１０）を重ね、シール剤（図示せ
ず）を介して貼り合わせ、その後、シール剤（図示せ
ず）からなるシール部の切欠部を通して前記基板間に、
液晶（図示せず）を注入し、切欠部を封止する方法が採
用されている（図３（ｂ））。上述した従来の方法で
は、カラーフィルタ基板（６）全体にスペーサ（７）を
散布するため、該カラーフィルタ基板（６）に対向する
電極基板（１０）の表示画素部（９）にもスペーサ
（７）が配置される。このように液晶が収容される表示
画素部（９）にスペーサ（７）が配置されると、画質品
位を低下させる問題が生じる。2. Description of the Related Art Conventionally, in order to manufacture a liquid crystal display device, as shown in FIG. 3, a black matrix (2), a color filter (3), a common electrode (4) and an alignment are formed on a glass substrate (1). On the color filter substrate (6) on which the film (5) is laminated, spherical or columnar spacers (7) with a uniform diameter within a range of 3 to 10 μm for maintaining a constant cell spacing are scattered. (FIG. 3A). Then, an electrode substrate (10) in which a thin film signal line (8) and a display pixel portion (9) are arranged in an array is superposed on this, and they are bonded together via a sealant (not shown), and then a sealant ( (Not shown) through the notch of the seal part between the substrates,
A method of injecting liquid crystal (not shown) and sealing the notch is adopted (FIG. 3 (b)). In the above-mentioned conventional method, since the spacers (7) are scattered over the entire color filter substrate (6), the spacers (7) are also formed on the display pixel portion (9) of the electrode substrate (10) facing the color filter substrate (6). 7) is placed. When the spacer (7) is arranged in the display pixel unit (9) containing the liquid crystal as described above, there arises a problem that the image quality is deteriorated.
【０００３】上記問題を解決する方法として、突起部を
含む表面に少なくともプラスチック製の保護膜と配向膜
が被覆されたカラーフィルタ基板の該配向膜上にスペー
サを散布し、平板を介して前記スペーサを押圧して前記
突起部上の配向膜及び保護膜にスペーサの一部を埋め込
み、更に前記突起部以外の配向膜領域上のスペーサをエ
アブロー等で除去した後、表示画素部及び該画素部から
突出した信号線を含む表面に配向膜が被覆された電極基
板を前記カラーフィルタ基板にスペーサを介して配置
し、重ね合わせることによって、スペーサが電極基板の
表示画素部に配置されるのを防止する方法（特開平１−
３０９０２３号公報）が提案されている。しかし、上述
した方法では、突起部上の配向膜及び保護膜にスペーサ
の一部を平板を介して押圧して埋め込むため、表示部の
配向膜上のスペーサにも押圧がかかり、その後表示部の
配向膜上のスペーサを除去するため、配向膜上にスペー
サの跡が残ってしまい、表示不良が発生する問題が生じ
る。As a method for solving the above-mentioned problem, spacers are scattered on the alignment film of a color filter substrate in which a surface including a protrusion is covered with at least a plastic protective film and an alignment film, and the spacer is inserted through a flat plate. After pressing a part of the spacer in the alignment film and the protective film on the protrusion to remove the spacer on the alignment film region other than the protrusion by air blow or the like, from the display pixel portion and the pixel portion An electrode substrate having an alignment film coated on the surface including a protruding signal line is arranged on the color filter substrate via a spacer, and the spacers are overlapped to prevent the spacer from being arranged in the display pixel portion of the electrode substrate. Method (JP-A-1-
309023) has been proposed. However, in the method described above, a part of the spacer is pressed and embedded in the alignment film and the protective film on the protrusion through the flat plate, so that the spacer on the alignment film in the display unit is also pressed and then the spacer of the display unit is pressed. Since the spacers on the alignment film are removed, traces of the spacers remain on the alignment film, which causes a problem of display failure.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上記従来の
課題を解決するためになされたもので、表示部の配向膜
上にスペーサの跡を残さず、また、表示画素部にスペー
サが配置されることなく、特定の箇所にスペーサを配置
し得る液晶表示装置の製造方法を提供しようとするもの
である。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and does not leave a trace of spacers on the alignment film of the display section, and the spacers are arranged in the display pixel section. It is an object of the present invention to provide a method for manufacturing a liquid crystal display device in which a spacer can be arranged at a specific position without being damaged.
【０００５】[0005]
【課題を解決するための手段】本発明は、少なくともブ
ラックマトリックスと共通電極を積層したカラーフィル
タ基板と、薄膜信号線と表示画素部をアレイ状に配置し
た電極基板に介在され、前記基板間の間隔を保持するス
ペーサを備えた液晶表示装置の製造方法において、光導
電体を帯電させた後、前記カラーフィルタ基板をマスク
とし露光する工程と、前記光導電体上に前記スペーサを
散布する工程と、前記カラーフィルタ基板に配向膜を設
け配向処理を施した後帯電させ、前記光導電体を接地さ
れた導電性ステージに支持し、前記カラーフィルタ基板
と重ね合わせ、前記スペーサを転写する工程を具備して
いることを特徴とする液晶表示装置の製造方法である。
また、本発明は、前記液晶表示装置の製造方法におい
て、カラーフィルタ基板が、ガラス基板上にブラックマ
トリックス、カラーフィルタ、共通電極を積層したもの
であることを特徴とするもの、または、カラーフィルタ
基板が、カラーフィルタの存在しないガラス基板上にブ
ラックマトリックス、共通電極を積層した基板であるこ
とを特徴とするものである。According to the present invention, a color filter substrate in which at least a black matrix and a common electrode are laminated, and an electrode substrate in which thin film signal lines and display pixel portions are arranged in an array are interposed, and between the substrates. In a method of manufacturing a liquid crystal display device provided with spacers for holding a space, a step of exposing after photoconductor is charged by using the color filter substrate as a mask, and a step of dispersing the spacers on the photoconductor. A step of providing an alignment film on the color filter substrate, performing an alignment treatment, and then charging, supporting the photoconductor on a grounded conductive stage, superimposing it on the color filter substrate, and transferring the spacers. And a liquid crystal display device manufacturing method.
Further, the present invention is the method of manufacturing a liquid crystal display device, wherein the color filter substrate is one in which a black matrix, a color filter, and a common electrode are laminated on a glass substrate, or a color filter substrate. Is characterized by being a substrate in which a black matrix and a common electrode are laminated on a glass substrate having no color filter.
【０００６】[0006]
【作用】本発明によれば、光導電体に正の帯電を与えた
後、カラーフィルタ基板をマスクとし露光すると、カラ
ーフィルタ基板のブラックマトリックス以外の部位すな
わち表示部のみ光が透過し、光導電体に正の帯電のブラ
ックマトリックス潜像が現れる。これは、ブラックマト
リックス以外の部位すなわち表示部を透過した光は、光
導電体に当たり、そこで光導電体は電子を生じ正の帯電
を中和する。その後、前記光導電体上にスペーサを散布
するとスペーサは正の帯のブラックマトリックスの潜像
に付着する。次に、配向膜を設け配向処理を施したカラ
ーフィルタ基板を負に帯電させ、光導電体を接地された
導電性ステージに支持し、前記カラーフィルタ基板と重
ね合わせることにより前記スペーサは前記カラーフィル
タのブラックマトリックスの部位に転写される。すなわ
ち、表示部以外の部位にスペーサは配置されるものであ
る。According to the present invention, after the photoconductor is positively charged and then exposed by using the color filter substrate as a mask, light is transmitted only through the portion other than the black matrix of the color filter substrate, that is, the display portion, and the photoconductive material is exposed. A positively charged black matrix latent image appears on the body. This is because light transmitted through a portion other than the black matrix, that is, the display portion hits the photoconductor, where the photoconductor produces electrons to neutralize the positive charge. Subsequent spraying of spacers on the photoconductor causes the spacers to adhere to the latent image of the positive band black matrix. Then, the color filter substrate provided with an alignment film and subjected to the alignment treatment is negatively charged, the photoconductor is supported on a grounded conductive stage, and the spacer is replaced by the color filter substrate by superposing the photoconductor on the conductive stage. Is transcribed to the site of the black matrix. That is, the spacer is arranged in a portion other than the display portion.
【０００７】[0007]
【実施例】本発明の実施例について図面を参照して説明
する。図１（ａ）（ｂ）（ｃ）及び図２（ｄ）（ｅ）
は、本発明の実施例の液晶表示装置の製造工程を示す断
面図である。まず、図１（ａ）に示すように、例えばセ
レン等からなる光導電体（１１）をコロナ放電による帯
電器（１２）で約６ｋｖに正帯電させる。次いで、図１
（ｂ）に示すように、前記光導電体（１１）をガラス基
板（１）上にクロムからなるブラックマトリックス
（２）、顔料からなるカラーフィルタ（３）、ＩＴＯか
らなる共通電極（４）を積層したカラーフィルタ基板
（６）をマスクとして、光源（１３）を使用し露光す
る。ここで、前記光導電体（１１）にブラックマトリッ
クス（２）の潜像（１４）が生じブラックマトリックス
（２）で遮光されていない部位では光が光導電体（１
１）に当たり導電体となる。次いで、図１（ｃ）に示す
ように、前記光導電体にガラスからなるスペーサ（７）
を散布すると静電気力により光導電体（１１）のブラッ
クマトリックス（２）の潜像（１４）にのみ前記スペー
サ（７）は配置される。Embodiments of the present invention will be described with reference to the drawings. 1 (a) (b) (c) and FIGS. 2 (d) (e)
FIG. 6A is a cross-sectional view showing a manufacturing process of the liquid crystal display device of the embodiment of the present invention. First, as shown in FIG. 1A, a photoconductor (11) made of selenium or the like is positively charged to about 6 kv by a charger (12) by corona discharge. Then, FIG.
As shown in (b), a black matrix (2) made of chromium, a color filter (3) made of a pigment, and a common electrode (4) made of ITO were formed on the glass substrate (1) on the photoconductor (11). The laminated color filter substrate (6) is used as a mask to expose using a light source (13). Here, light is generated at the photoconductor (1) where the latent image (14) of the black matrix (2) is formed on the photoconductor (11) and is not shielded by the black matrix (2).
In 1), it becomes a conductor. Then, as shown in FIG. 1C, a spacer (7) made of glass is formed on the photoconductor.
Is dispersed, the spacer (7) is arranged only on the latent image (14) of the black matrix (2) of the photoconductor (11) by electrostatic force.
【０００８】次いで、図２（ｄ）に示すように、前記カ
ラーフィルタ基板（６）に配向部（５）を積層させた
後、前記カラーフィルタ基板（６）を帯電器（１２）で
約−６ｋｖに負帯電する。次いで、前記光導電体（１
１）のブラックマトリックス（２）の潜像（１４）と前
記カラーフィルタ基板（６）のブラックマトリックス
（２）が対向するように重ね合わせた後、前記光導電体
（１１）を接地された導電性ステージ（１５）上に支持
することにより前記スペーサ（７）は前記カラーフィル
タ基板（６）のブラックマトリックス（２）の部位に転
写される。次いで、図２（ｅ）に示すように、薄膜信号
線（８）と表示画素部（９）をアレイ状に配置した電極
基板（１０）と前記カラーフィルタ基板（６）を重ね、
シール剤（図示せず）を介して貼り合わせ、その後、シ
ール剤（図示せず）からなるシール部の切欠部を通して
前記基板間に、液晶（図示せず）を注入し、切欠部を封
止することにより液晶表示装置を製造した。Next, as shown in FIG. 2 (d), after the orientation part (5) is laminated on the color filter substrate (6), the color filter substrate (6) is charged by a charger (12) to about −. It is negatively charged to 6 kv. Then, the photoconductor (1
After superimposing the latent image (14) of the black matrix (2) of 1) and the black matrix (2) of the color filter substrate (6) so as to face each other, the photoconductor (11) is grounded to be conductive. The spacer (7) is transferred onto the black matrix (2) of the color filter substrate (6) by supporting it on the sexual stage (15). Then, as shown in FIG. 2E, the color filter substrate 6 and the electrode substrate 10 on which the thin film signal lines 8 and the display pixel portions 9 are arranged in an array are stacked,
Bonding via a sealant (not shown), and then liquid crystal (not shown) is injected between the substrates through the notch of the seal part made of the sealant (not shown) to seal the notch. By doing so, a liquid crystal display device was manufactured.
【０００９】上記実施例ではカラーフィルタ基板（６）
を用いたが、カラーフィルタ（３）の存在しないガラス
基板（１）上にブラックマトリックス（２）、共通電極
基板（４）を積層した基板を用いてもよい。また、上記
実施例では、光導電体（１１）としてセレンを用いた
が、クリスタルバイオレット、メチレンブルー又はベン
ゾピリリウム塩を増感剤として加えたポリビニルカルバ
ゾールを用いてもよい。また、上記実施例では、顔料か
らなるカラーフィルタ（３）を用いたが、染料からなる
カラーフィルタを用いてもよい。In the above embodiment, the color filter substrate (6)
However, a substrate in which the black matrix (2) and the common electrode substrate (4) are laminated on the glass substrate (1) without the color filter (3) may be used. Although selenium was used as the photoconductor (11) in the above examples, polyvinylcarbazole to which crystal violet, methylene blue or benzopyrylium salt is added as a sensitizer may be used. Further, although the color filter (3) made of a pigment is used in the above embodiment, a color filter made of a dye may be used.
【００１０】[0010]
【発明の効果】以上説明したように本発明によれば、ス
ペーサが電極基板の表示画素部に配置されるのを防止で
き、液晶が収容される表示画素部にスペーサが配置され
ることによる画質品位の低下、表示不良を解消した高画
質表示が可能な液晶表示装置を製造することができると
いう効果を奏するものである。As described above, according to the present invention, it is possible to prevent the spacers from being arranged in the display pixel portion of the electrode substrate, and to improve the image quality due to the spacers being arranged in the display pixel portion in which the liquid crystal is accommodated. It is possible to manufacture a liquid crystal display device capable of high-quality display in which degradation of quality and display defects are eliminated.
【図１】 本発明の実施例の液晶表示装置の製造工程
（ａ）（ｂ）（ｃ）を示す断面図。FIG. 1 is a cross-sectional view showing manufacturing steps (a), (b), and (c) of a liquid crystal display device according to an embodiment of the present invention.
【図２】 本発明の実施例の液晶表示装置の製造工程で
図１に続く工程（ｄ）（ｅ）を示す断面図。FIG. 2 is a cross-sectional view showing steps (d) and (e) following FIG. 1 in the manufacturing process of the liquid crystal display device of the embodiment of the present invention.
【図３】 従来の液晶表示装置の製造工程を示す断面
図。FIG. 3 is a cross-sectional view showing a manufacturing process of a conventional liquid crystal display device.
１． ガラス基板 ２． ブラックマトリックス ３． カラーフィルタ ４． 共通電極 ５． 配向膜 ６． カラーフィルタ基板 ７． スペーサ ８． 薄膜信号線 ９． 表示画素部 １０．電極基板 １１．光導電体 １２．帯電器 １３．光源 １４．潜像 １５．導電性ステージ 1. Glass substrate 2. Black matrix 3. Color filter 4. Common electrode 5. Alignment film 6. Color filter substrate 7. Spacer 8. Thin film signal line 9. Display pixel unit 10. Electrode substrate 11. Photoconductor 12. Charger 13. Light source 14. Latent image 15. Conductive stage
Claims (3)
電極を積層したカラーフィルタ基板と、薄膜信号線と表
示画素部をアレイ状に配置した電極基板に介在され、前
記基板間の間隔を保持するスペーサを備えた液晶表示装
置の製造方法において、光導電体を帯電させた後、前記
カラーフィルタ基板をマスクとし露光する工程と、前記
光導電体上に前記スペーサを散布する工程と、前記カラ
ーフィルタ基板に配向膜を設け配向処理を施した後帯電
させ、前記光導電体を接地された導電性ステージに支持
し、前記カラーフィルタ基板と重ね合わせ、前記スペー
サを転写する工程を具備することを特徴とする液晶表示
装置の製造方法。1. A color filter substrate having at least a black matrix and a common electrode laminated thereon, and a spacer interposed between an electrode substrate having a thin film signal line and a display pixel portion arranged in an array and holding a space between the substrates. In the method of manufacturing a liquid crystal display device, after the photoconductor is charged, a step of exposing using the color filter substrate as a mask, a step of spraying the spacer on the photoconductor, and an alignment film on the color filter substrate. A liquid crystal display characterized by comprising the steps of: providing a substrate, carrying out an orientation treatment, and then charging, supporting the photoconductor on a grounded conductive stage, superimposing it on the color filter substrate, and transferring the spacer. Device manufacturing method.
ブラックマトリックス、カラーフィルタ、共通電極を積
層したものであることを特徴とする請求項１に記載の液
晶表示装置の製造方法。2. The method of manufacturing a liquid crystal display device according to claim 1, wherein the color filter substrate is a glass substrate on which a black matrix, a color filter and a common electrode are laminated.
ブラックマトリックス、共通電極を積層した基板である
ことを特徴とする請求項１に記載の液晶表示装置の製造
方法。3. The method for manufacturing a liquid crystal display device according to claim 1, wherein the color filter substrate is a substrate in which a black matrix and a common electrode are laminated on a glass substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6163071A JP2536457B2 (en) | 1994-06-22 | 1994-06-22 | Liquid crystal display manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6163071A JP2536457B2 (en) | 1994-06-22 | 1994-06-22 | Liquid crystal display manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH086035A JPH086035A (en) | 1996-01-12 |
| JP2536457B2 true JP2536457B2 (en) | 1996-09-18 |
Family
ID=15766635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6163071A Expired - Fee Related JP2536457B2 (en) | 1994-06-22 | 1994-06-22 | Liquid crystal display manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2536457B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100646360B1 (en) * | 1999-07-15 | 2006-11-17 | 인더스트리얼 테크놀로지 리써치 인스티튜트 | Liquid crystal panel and method for producing the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06258647A (en) * | 1993-03-08 | 1994-09-16 | Hitachi Ltd | Liquid crystal display device and its production |
-
1994
- 1994-06-22 JP JP6163071A patent/JP2536457B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH086035A (en) | 1996-01-12 |
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