JP2580617B2 - Liquid crystal device - Google Patents
Liquid crystal deviceInfo
- Publication number
- JP2580617B2 JP2580617B2 JP62225723A JP22572387A JP2580617B2 JP 2580617 B2 JP2580617 B2 JP 2580617B2 JP 62225723 A JP62225723 A JP 62225723A JP 22572387 A JP22572387 A JP 22572387A JP 2580617 B2 JP2580617 B2 JP 2580617B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal device
- pixel
- protective film
- substrates
- 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
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
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
Landscapes
- Physics & Mathematics (AREA)
- Liquid Crystal (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、液晶装置に関する。Description: TECHNICAL FIELD The present invention relates to a liquid crystal device.
従来、SID（Society For Information Display）'
84Symposium Digest P316〜320に記載されているよう
なドライバー内蔵型アクティブマトリックス液晶表示装
置が知られていた。その概要を第２図ａ、ｂに基づいて
説明する。第２図ａは、従来の液晶表示装置の要部断面
図、第２図ｂは、第２図ａのＡ−Ａ′断面図である。透
明基板１上にデータ線２とタイミング線３を形成し、該
データ線とタイミング線の交差点に薄膜トランジスタ４
と薄膜トランジスタでスイッチする画素電極５をマトリ
ックス状に形成し、同時にデータ線駆動回路６とタイミ
ング線駆動回路７を周辺に形成する。次に透明基板８上
に共通電極９を全面に形成し、該共通電極上に薄膜トラ
ンジスタの遮光層10を、マトリックス状に形成する。そ
して一方の透明基板上にシール材11をスクリーン印刷
し、他方の基板と貼り合わせた後、押圧して接着せしめ
る。そして、液晶14を封入して液晶表示装置としてい
た。Conventionally, SID (Society For Information Display) '
An active matrix liquid crystal display device with a built-in driver as described in 84 Symposium Digest P316-320 has been known. The outline will be described with reference to FIGS. FIG. 2A is a sectional view of a main part of a conventional liquid crystal display device, and FIG. 2B is a sectional view taken along line AA 'of FIG. 2A. A data line 2 and a timing line 3 are formed on a transparent substrate 1, and a thin film transistor 4 is formed at an intersection of the data line and the timing line.
And a pixel electrode 5 to be switched by a thin film transistor are formed in a matrix, and at the same time, a data line drive circuit 6 and a timing line drive circuit 7 are formed in the periphery. Next, a common electrode 9 is formed on the entire surface of the transparent substrate 8, and a light-shielding layer 10 of a thin film transistor is formed in a matrix on the common electrode. Then, the sealant 11 is screen-printed on one of the transparent substrates, bonded to the other substrate, and then pressed to adhere. Then, the liquid crystal 14 was sealed to form a liquid crystal display device.
しかし、前述の従来技術では、ドライバー回路が直接
外気と接しているため、外的な衝撃や湿度などの周辺の
環境の影響を受けやすいという問題点を有する。However, in the above-described prior art, since the driver circuit is in direct contact with the outside air, there is a problem that the driver circuit is easily affected by the surrounding environment such as external impact and humidity.
本発明は、このような問題点を、解決するもので、そ
の目的とするところは、耐衝撃性や耐湿性などの信頼性
を向上させることを目的とする。The present invention solves such a problem, and an object of the present invention is to improve reliability such as impact resistance and moisture resistance.
本発明の液晶装置は、一対の対向する基板の一方の基
板上にマトリクス配列された画素電極と前記画素電極に
接続されてなるスイッチング素子とが設けられた画素部
と、前記画素部の周辺部に設けられ、前記画素部を駆動
する駆動回路部とを有し、 前記一対の基板は前記画素部を包囲するシール材を介
して接着されてなり、前記基板間の前記シール材で包囲
された領域内に液晶を封入してなる液晶装置において、
前記駆動回路部は、可視領域の光を吸収する絶縁性有機
物樹脂からなる保護膜により被覆されてなり、 前記保護膜上には前記シール材に接するようにモール
ド材が形成されてなることを特徴とする。A liquid crystal device of the present invention includes a pixel portion provided with pixel electrodes arranged in a matrix on one of a pair of opposed substrates and a switching element connected to the pixel electrode, and a peripheral portion of the pixel portion. And a driving circuit unit for driving the pixel portion, wherein the pair of substrates are bonded via a sealing material surrounding the pixel portion, and are surrounded by the sealing material between the substrates. In a liquid crystal device in which liquid crystal is sealed in a region,
The drive circuit unit is covered with a protective film made of an insulating organic resin that absorbs light in a visible region, and a molding material is formed on the protective film so as to be in contact with the sealing material. And
また、本発明は、前記液晶装置が投射型表示装置のラ
イトバルブであることを特徴とする。Further, the invention is characterized in that the liquid crystal device is a light valve of a projection display device.
〔実施例１〕 本実施例を第１図ａ、ｂに基づいて説明する。第１図
ａは、液晶表示装置の要部断面図、第１図ｂは、第１図
ａのＡ−Ａ′断面図である。透明基板１上にデータ線２
とタイミング線３を形成し、該データ線とタイミング線
の交差点に薄膜トランジスタ４と薄膜トランジスタでス
イッチする画素電極５をマトリックス状に形成し、同時
にデータ線駆動回路６とタイミング線駆動回路７を周辺
に形成する。そしてポリイミドを全面にスピンコートに
て、塗布した後にパターニングして駆動回路の保護膜12
を形成する。上記保護膜の形成方法としては他に印刷法
・スプレー法・ディップ法等がある。また、上記保護膜
は、ポリイミドに限るものではなく、透明基板と密着が
よく、配線材料を腐食させないものならなんでもよく、
たとえばアクリル樹脂等がある。Embodiment 1 This embodiment will be described with reference to FIGS. FIG. 1A is a cross-sectional view of a main part of the liquid crystal display device, and FIG. 1B is a cross-sectional view along AA 'of FIG. 1A. Data line 2 on transparent substrate 1
And a timing line 3 are formed. At the intersection of the data line and the timing line, a thin film transistor 4 and a pixel electrode 5 to be switched by the thin film transistor are formed in a matrix, and at the same time, a data line driving circuit 6 and a timing line driving circuit 7 are formed around the periphery. I do. Then, polyimide is applied to the entire surface by spin coating, and then patterned to form a protective film 12 for the drive circuit.
To form Other methods for forming the protective film include a printing method, a spray method, and a dipping method. In addition, the protective film is not limited to polyimide, but may be anything as long as it has good adhesion to the transparent substrate and does not corrode the wiring material.
For example, there is an acrylic resin.
次に、透明基板８上に共通電極８を全面に形成し、該
共通電極上に薄膜トランジスタの遮光層10をマトリック
ス状に形成する。そして、シール材11を介して上記一対
の透明基板を封着し、液晶14を封入した後、シリコン樹
脂（あるいは紫外線硬化樹脂等）13でモールドしてドラ
イバー内蔵型液晶表示装置を得た。Next, a common electrode 8 is formed on the entire surface of the transparent substrate 8, and a light-shielding layer 10 of a thin film transistor is formed in a matrix on the common electrode. Then, the pair of transparent substrates were sealed with a sealant 11 interposed therebetween, and a liquid crystal 14 was sealed, followed by molding with a silicone resin (or an ultraviolet curable resin or the like) 13 to obtain a liquid crystal display device with a built-in driver.
以上のような本実施において、駆動回路を絶縁性有機
物樹脂で覆ったことにより、耐衝撃性や耐湿性が大幅に
向上した。また、可視領域の光を吸収する絶縁性有機物
樹脂を用いれば、投射型表示装置のライトバルブなどに
用いた場合に生じる強烈な光源による内蔵ドライバーの
光誤動作をなくすことができると同時に、一対の基板の
アライメントマークとして用いることができる。In the present embodiment as described above, the impact resistance and the moisture resistance were greatly improved by covering the drive circuit with the insulating organic resin. In addition, if an insulating organic resin that absorbs light in the visible region is used, it is possible to eliminate the malfunction of the built-in driver due to an intense light source that occurs when the insulating organic resin is used for a light valve or the like of a projection display device. It can be used as an alignment mark for a substrate.
本参考例を第３図ａ、ｂに基づいて説明する。第３図
ａは、液晶表示装置の要部断面図、第３図ｂは、第３図
ａのＡ−Ａ′断面図である。透明基板１上にデータ線２
とタイミング線３を形成し、該データ線とタイミング線
の交差点に薄膜トランジスタ４と薄膜トランジスタでス
イッチする画素電極５をマトリックス状に形成し、同時
にデータ線駆動回路６とタイミング線駆動回路７を周辺
に形成する。次に透明基板８上に共通電極９を全面に形
成し、該共通電極上に薄膜トランジスタの遮光層10をマ
トリックス状に形成する。This embodiment will be described with reference to FIGS. FIG. 3A is a cross-sectional view of a main part of the liquid crystal display device, and FIG. 3B is a cross-sectional view along AA 'of FIG. 3A. Data line 2 on transparent substrate 1
And a timing line 3, and a thin film transistor 4 and a pixel electrode 5 to be switched by the thin film transistor are formed in a matrix at an intersection of the data line and the timing line, and at the same time, a data line driving circuit 6 and a timing line driving circuit 7 are formed in the periphery. I do. Next, a common electrode 9 is formed on the entire surface of the transparent substrate 8, and a light-shielding layer 10 of a thin film transistor is formed on the common electrode in a matrix.
そして透明基板１上にシール材11として紫外線硬化樹
脂をスクリーン印刷して液晶層のシールと駆動回路の保
護膜を同時に形成し、透明基板７と貼り合わせた後押圧
し、紫外線を照射して硬化せしめる。そして液晶14を封
入してドライバー内蔵型液晶表示装置を得た。前記シー
ル材は紫外線硬化樹脂に限るものではなく、透明基板と
密着がよく、配線材料を腐食させない接着剤ならなんで
もよく、たとえば、エポキシ樹脂、シアノアクリレート
系樹脂等がある。Then, an ultraviolet curable resin is screen-printed as a sealant 11 on the transparent substrate 1 to simultaneously form a seal for the liquid crystal layer and a protective film for the drive circuit. Let me know. Then, the liquid crystal 14 was sealed to obtain a liquid crystal display device with a built-in driver. The sealing material is not limited to an ultraviolet curable resin, but may be any adhesive that has good adhesion to the transparent substrate and does not corrode the wiring material, and examples thereof include an epoxy resin and a cyanoacrylate resin.
以上のような本参考例において、駆動回路を絶縁性有
機物樹脂で覆ったことにより、実施例１と同様に信頼性
が大巾に向上した。また、液晶層のシールと同時に駆動
回路の保護膜が形成できるため、工程が増えずに駆動回
路の信頼性を向上させることができた。In the above-described reference example, the reliability was greatly improved as in the first embodiment by covering the drive circuit with the insulating organic resin. In addition, since the protective film of the driving circuit can be formed simultaneously with the sealing of the liquid crystal layer, the reliability of the driving circuit can be improved without increasing the number of steps.
本発明は以上説明したように、駆動回路部が可視領域
の光を吸収する絶縁性有機物樹脂からなる保護膜とモー
ルド樹脂とで二重に被覆されるため、光源からの光によ
る駆動回路の光誤作動を防止し、かつ液晶装置の耐衝撃
性や耐湿性の改善をはかることが出来る。As described above, in the present invention, since the drive circuit portion is double-coated with the protective film made of an insulating organic resin that absorbs light in the visible region and the mold resin, the light of the drive circuit due to the light from the light source is provided. Malfunction can be prevented, and the impact resistance and moisture resistance of the liquid crystal device can be improved.
第１図（ａ）は、液晶表示装置の要部断面図、第１図
（ｂ）は、第１図（ａ）のＡ−Ａ′断面図である。 第２図（ａ）は、従来の液晶表示装置の要部断面図、第
２図（ｂ）は、第２図（ａ）のＡ−Ａ′断面図である。 第３図（ａ）は、参考例の液晶表示装置の要部断面図、
第３図（ｂ）は、第３図（ａ）のＡ−Ａ′断面図であ
る。 １、８……透明基板 ２……データ線 ３……タイミング線 ４……薄膜トランジスタ ５……画素電極 ６……データ線駆動回路 ７……タイミング線駆動回路 ９……共通電極 10……遮光層 11……シール材 12……保護膜 13……シリコン樹脂 14……液晶FIG. 1A is a cross-sectional view of a main part of the liquid crystal display device, and FIG. 1B is a cross-sectional view along AA 'of FIG. 1A. FIG. 2A is a sectional view of a main part of a conventional liquid crystal display device, and FIG. 2B is a sectional view taken along the line AA 'of FIG. 2A. FIG. 3A is a sectional view of a main part of a liquid crystal display device of a reference example,
FIG. 3 (b) is a sectional view taken along the line AA 'of FIG. 3 (a). 1, 8 transparent substrate 2 data line 3 timing line 4 thin film transistor 5 pixel electrode 6 data line drive circuit 7 timing line drive circuit 9 common electrode 10 light shielding layer 11 Sealing material 12 Protective film 13 Silicon resin 14 Liquid crystal
Claims (2)
リクス配列された画素電極と前記画素電極に接続されて
なるスイッチング素子とが設けられた画素部と、前記画
素部の周辺部に設けられ、前記画素部を駆動する駆動回
路部とを有し、 前記一対の基板は前記画素部を包囲するシール材を介し
て接着されてなり、前記基板間の前記シール材で包囲さ
れた領域内に液晶を封入してなる液晶装置において、前
記駆動回路部は、可視領域の光を吸収する絶縁性有機物
樹脂からなる保護膜により被覆されてなり、 前記保護膜上には前記シール材に接するようにモールド
材が形成されてなることを特徴とする液晶装置。1. A pixel portion provided with pixel electrodes arranged in a matrix on one of a pair of opposed substrates and a switching element connected to the pixel electrode, and provided on a peripheral portion of the pixel portion. And a driving circuit unit for driving the pixel unit, wherein the pair of substrates are bonded via a sealant surrounding the pixel unit, and a region between the substrates surrounded by the sealant is provided. In the liquid crystal device having liquid crystal sealed therein, the drive circuit section is covered with a protective film made of an insulating organic resin that absorbs light in a visible region, and is in contact with the sealing material on the protective film. A liquid crystal device comprising a mold material formed thereon.
ルブであることを特徴とする特許請求の範囲第１項記載
の液晶装置。2. The liquid crystal device according to claim 1, wherein said liquid crystal device is a light valve of a projection type display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62225723A JP2580617B2 (en) | 1987-09-09 | 1987-09-09 | Liquid crystal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62225723A JP2580617B2 (en) | 1987-09-09 | 1987-09-09 | Liquid crystal device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP473496A Division JP2626641B2 (en) | 1996-01-16 | 1996-01-16 | Liquid crystal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6468725A JPS6468725A (en) | 1989-03-14 |
| JP2580617B2 true JP2580617B2 (en) | 1997-02-12 |
Family
ID=16833806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62225723A Expired - Lifetime JP2580617B2 (en) | 1987-09-09 | 1987-09-09 | Liquid crystal device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2580617B2 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0402170B1 (en) * | 1989-06-09 | 1994-11-09 | Sharp Kabushiki Kaisha | Liquid crystal display device |
| JPH06138488A (en) * | 1992-10-29 | 1994-05-20 | Seiko Epson Corp | Liquid crystal display device |
| US6980275B1 (en) | 1993-09-20 | 2005-12-27 | Semiconductor Energy Laboratory Co., Ltd. | Electro-optical device |
| ATE293162T1 (en) * | 1993-12-23 | 2005-04-15 | Nps Allelix Corp | METHODS USING EAA3 OR EAA4 RECEPTORS |
| JP3778964B2 (en) * | 1995-02-15 | 2006-05-24 | 株式会社半導体エネルギー研究所 | Active matrix display device |
| US6011607A (en) | 1995-02-15 | 2000-01-04 | Semiconductor Energy Laboratory Co., | Active matrix display with sealing material |
| JP2626641B2 (en) * | 1996-01-16 | 1997-07-02 | セイコーエプソン株式会社 | Liquid crystal device |
| JPH09311342A (en) | 1996-05-16 | 1997-12-02 | Semiconductor Energy Lab Co Ltd | Display device |
| US7053973B1 (en) | 1996-05-16 | 2006-05-30 | Semiconductor Energy Laboratory Co., Ltd. | Display device |
| US6288764B1 (en) * | 1996-06-25 | 2001-09-11 | Semiconductor Energy Laboratory Co., Ltd. | Display device or electronic device having liquid crystal display panel |
| JPH10268361A (en) | 1997-03-27 | 1998-10-09 | Semiconductor Energy Lab Co Ltd | Liquid crystal display device and its manufacture |
| JP3873478B2 (en) * | 1997-12-25 | 2007-01-24 | セイコーエプソン株式会社 | Liquid crystal display device, electronic device, and method of manufacturing liquid crystal display device |
| JP2002023196A (en) * | 2001-04-23 | 2002-01-23 | Seiko Epson Corp | Liquid crystal display device |
| JP3736513B2 (en) | 2001-10-04 | 2006-01-18 | セイコーエプソン株式会社 | ELECTRO-OPTICAL DEVICE, MANUFACTURING METHOD THEREOF, AND ELECTRONIC DEVICE |
| KR101125252B1 (en) * | 2004-12-31 | 2012-03-21 | 엘지디스플레이 주식회사 | Poly Liquid Crystal Dispaly Panel and Method of Fabricating The Same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6138618U (en) * | 1984-08-10 | 1986-03-11 | カシオ計算機株式会社 | liquid crystal device |
| JPH065465B2 (en) * | 1985-02-01 | 1994-01-19 | セイコー電子工業株式会社 | Liquid crystal display device sealing structure |
| JPS6246431U (en) * | 1985-09-10 | 1987-03-20 | ||
| JP2621135B2 (en) * | 1986-01-07 | 1997-06-18 | セイコーエプソン株式会社 | Liquid crystal electro-optical device |
| JPS6396627A (en) * | 1986-10-13 | 1988-04-27 | Semiconductor Energy Lab Co Ltd | Preparation of liquid crystal device |
-
1987
- 1987-09-09 JP JP62225723A patent/JP2580617B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6468725A (en) | 1989-03-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |