JP2636255B2 - Liquid crystal device manufacturing method - Google Patents
Liquid crystal device manufacturing methodInfo
- Publication number
- JP2636255B2 JP2636255B2 JP62218831A JP21883187A JP2636255B2 JP 2636255 B2 JP2636255 B2 JP 2636255B2 JP 62218831 A JP62218831 A JP 62218831A JP 21883187 A JP21883187 A JP 21883187A JP 2636255 B2 JP2636255 B2 JP 2636255B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- substrates
- pair
- substrate
- sealing material
- 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
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- Liquid Crystal (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、液晶表示装置およびその製造方法に関す
る。The present invention relates to a liquid crystal display device and a method for manufacturing the same.
従来の液晶表示装置およびその製造方法を第２図に基
づいて説明する。まず、ａ図の如く、液晶の電気光学効
果を制御する手段としてポリシリコン薄膜トランジスタ
ー（TFT）５をマトリックス状に形成した透明基板１上
にギャップコントロール材２を全面に散布し、透明な共
通電極６を全面に形成した対向基板７上にシール材３を
印刷する。次にｂ図の如く、上記一対の基板を貼り合わ
せ、次にｃ図の如く、基板全面に均一に圧力がかかる圧
着治具４にて押圧し、接着せしめ、基板の間隙を全面に
散布したギャップコントロール材で保持せしめていた。A conventional liquid crystal display device and its manufacturing method will be described with reference to FIG. First, as shown in FIG. 1A, as a means for controlling the electro-optical effect of the liquid crystal, a gap control material 2 is dispersed over a transparent substrate 1 on which a polysilicon thin film transistor (TFT) 5 is formed in a matrix, and a transparent common electrode is formed. The sealing material 3 is printed on the opposing substrate 7 having the entire surface 6 formed thereon. Next, as shown in Fig. B, the above-mentioned pair of substrates were bonded together, and then, as shown in Fig. C, the whole surface of the substrate was pressed and bonded by a crimping jig 4 for uniformly applying pressure, and the gap between the substrates was scattered over the entire surface. It was held with a gap control material.
しかし、前述の従来技術では、基板全面に散布したギ
ャップコントロール材に荷重をかけて押圧するため、薄
膜トランジスター等のスイッチング素子が破壊されて画
素欠陥が生じてしまうという問題点を有する。また、ギ
ャップコントロール材を散布したところには液晶が充填
されず、液晶の電気光学効果による光スイッチングが行
なわれないため、コントラスト比の低下や表示のざらつ
きが生じるという問題点をも有する。However, in the above-described related art, there is a problem that a switching element such as a thin film transistor is destroyed and a pixel defect occurs because a load is applied to the gap control material scattered on the entire surface of the substrate and pressed. Further, since the liquid crystal is not filled in the area where the gap control material is scattered, and optical switching is not performed by the electro-optical effect of the liquid crystal, there is a problem that a contrast ratio is lowered and a display is rough.
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、薄膜トランジスター等のスイッチ
ング素子の破壊による画素欠陥の発生をなくすととも
に、高コントラスト比を有するざらつきのない表示を得
るところにある。An object of the present invention is to solve such a problem. An object of the present invention is to eliminate the occurrence of pixel defects due to the destruction of a switching element such as a thin film transistor and to obtain a rough display having a high contrast ratio. There.
本発明は、一対の基板の内側に液晶を挟持し、該一対
の基板の一方の基板上にはマトリクス状に配置されたス
イッチング素子を有してなる液晶装置の製造方法におい
て、 ギャップコントロール材が混入されたシール材を介し
て該一対の基板を貼り合わせる工程と、 該一対の基板を挟んで押圧する押圧手段により、該一
対の基板を押圧する工程とを有し、 該一対の基板の片側の基板は、該シール材の配置領域
及びその周辺部のみの該基板の外側が該押圧手段に接し
て、該シール材の配置領域及びその周辺部のみの該基板
の外側が押圧されてなることを特徴とする。The present invention relates to a method for manufacturing a liquid crystal device comprising a pair of substrates with liquid crystal interposed therebetween, and a switching element arranged in a matrix on one of the pair of substrates. A step of bonding the pair of substrates via a mixed sealing material, and a step of pressing the pair of substrates by a pressing unit that presses the pair of substrates therebetween, and one side of the pair of substrates. In the substrate, the outside of the substrate only in the area where the sealing material is disposed and the periphery thereof is in contact with the pressing means, and the outside of the substrate only in the area where the sealing material is disposed and the periphery thereof is pressed. It is characterized by.
本発明は、一対の基板の内側に液晶を挟持し、該一対
の基板の一方の基板上にはマトリクス状に配置されたス
イッチング素子を有してなる液晶装置の製造方法におい
て、 ギャップコントロール材が混入されたシール材を介し
て該一対の基板を貼り合わせる工程と、 該一対の基板を挟んで押圧する押圧手段により、該一
対の基板を押圧する工程とを有し、 該一対の基板のそれぞれの基板は、該シール材の配置
領域及びその周辺部のみの該基板の外側が該押圧手段に
接して、該シール材の配置領域及びその周辺部のみの該
基板の外側が押圧されることを特徴とする。The present invention relates to a method for manufacturing a liquid crystal device comprising a pair of substrates with liquid crystal interposed therebetween, and a switching element arranged in a matrix on one of the pair of substrates. A step of bonding the pair of substrates via a mixed sealing material, and a step of pressing the pair of substrates by a pressing unit that presses the pair of substrates. In the substrate, the outside of the substrate only in the area where the sealing material is disposed and the periphery thereof is in contact with the pressing means, and the outside of the substrate only in the area where the sealing material is disposed and the periphery thereof is pressed. Features.
（実施例−１） 本実施例を第１図に基づいて説明する。第１図は、液
晶表示装置の要工程図である。まず、ａ図の如く、液晶
の電気光学効果を制御する手段としてポリシリコン薄膜
トランジスター（TFT）５をマトリックス状に形成した
透明基板１上にギャップコントロール材２を混入したシ
ール材３をスクリーン印刷する。上記シール材は、液晶
を劣化させずに一対の基板を接着できるものならばなん
でもよく、たとえば、エポキシ樹脂，紫外線硬化樹脂等
がある。(Embodiment 1) This embodiment will be described with reference to FIG. FIG. 1 is a main process diagram of the liquid crystal display device. First, as shown in FIG. 1A, as a means for controlling the electro-optical effect of the liquid crystal, a sealing material 3 mixed with a gap control material 2 is screen-printed on a transparent substrate 1 in which a polysilicon thin film transistor (TFT) 5 is formed in a matrix. . The sealing material is not limited as long as it can bond a pair of substrates without deteriorating the liquid crystal, and examples thereof include an epoxy resin and an ultraviolet curing resin.
次にｂ図の如く、共通電極６を全面に形成した対向基
板７と貼り合わせる。次にｃ図の如く、シール材部のみ
を凸状にした圧着治具４にて、シール材部のみを押圧
し、対向基板７と透明基板１を接着せしめ、基板の間隙
をシール部のみで保持せしめ、液晶を封入して液晶表示
装置を得た。Next, as shown in FIG. 6B, the common electrode 6 is bonded to the counter substrate 7 formed on the entire surface. Next, as shown in Fig. C, only the sealing material portion is pressed by a crimping jig 4 having only the sealing material portion in a convex shape, and the opposing substrate 7 and the transparent substrate 1 are bonded to each other. The liquid crystal was sealed by holding and holding a liquid crystal.
以上のような本実施例において、シール材部のみを押
圧して、基板の間隙をシール部のみで保持せしめたこと
により、ギャップコントロール材にて生じる液晶の配向
不良およびギャップコントロール材の分布のバラツキに
よる液晶表示装置のギャップムラを解消することがで
き、均一で高コントラスト比を有するざらつきのない表
示が得られた。また、ギャップコントロール材によって
生じていた画素欠陥も大巾に減少した。In the present embodiment as described above, by pressing only the sealing material portion and holding the gap of the substrate only by the sealing portion, poor alignment of liquid crystal caused by the gap control material and variation in distribution of the gap control material. Of the liquid crystal display device can be eliminated, and a uniform display having a high contrast ratio and no roughness can be obtained. In addition, pixel defects caused by the gap control material were greatly reduced.
（実施例−２） 本実施例を第３図に基づいて説明する。第３図は、液
晶表示装置の要工程図である。まず、ａ図の如く、液晶
の電気光学効果を制御する手段としてポリシリコン薄膜
トランジスター（TFT）５をマトリックス状に形成した
透明基板１上にギャップコントロール材２を混入したシ
ール材３をスクリーン印刷する。次にｂ図の如く、共通
電極を全面に形成した対向基板７を透明基板１と貼り合
わせる。次にｃ図の如く、対向基板６上に紙をシールの
形状にくり抜いたスペーサー８をのせ、圧着治具４にて
シール材部のみを押圧し、対向基板７と透明基板１を接
着せしめ、基板の間隙をシール部のみで保持せしめる。Example 2 This example will be described with reference to FIG. FIG. 3 is a main process diagram of the liquid crystal display device. First, as shown in FIG. 1A, as a means for controlling the electro-optical effect of the liquid crystal, a sealing material 3 mixed with a gap control material 2 is screen-printed on a transparent substrate 1 in which a polysilicon thin film transistor (TFT) 5 is formed in a matrix. . Next, as shown in FIG. 2B, the counter substrate 7 having the common electrode formed on the entire surface is bonded to the transparent substrate 1. Next, as shown in Fig. C, a spacer 8 formed by cutting paper into a seal shape is placed on the opposing substrate 6, and only the sealing material portion is pressed by the crimping jig 4, so that the opposing substrate 7 and the transparent substrate 1 are bonded. The gap between the substrates is held only by the seal portion.
上記スペーサー８は、紙に限るものではなく、適当な
厚みをもち、対向基板の厚みムラを吸収できるものなら
ばなんでもよく、たとえば、ゴム，プラスチック，皮
革，金属等がある。The spacer 8 is not limited to paper, but may be anything as long as it has an appropriate thickness and can absorb the thickness unevenness of the opposing substrate, such as rubber, plastic, leather, and metal.
次に液晶を入れて、ダイシング法により分割して液晶
表示装置を得た。Next, a liquid crystal was put therein, and divided by a dicing method to obtain a liquid crystal display device.
以上のような本実施例において、シール材部のみを押
圧して、基板の間隙をシール部のみで保持したことによ
り、実施例１と同様に均一で高コントラスト比を有する
ざらつきのない表示が得られ、かつ画素欠陥も大巾に減
少した。In this embodiment as described above, by pressing only the sealing material portion and holding the gap between the substrates only by the sealing portion, a uniform display having a high contrast ratio and having no roughness can be obtained as in the first embodiment. And the number of pixel defects was greatly reduced.
（実施例−３） 実施例２で作成した液晶表示装置を用いて、投射型表
示装置を作製した。その光学系構成図を第４図に示す。
楕円球面ミラー付のハロゲンランプ１からの入射光をレ
ンズ２で集光させ、ダイクロイックミラー３に入射せし
め赤（Ｒ），緑（Ｇ），青（Ｂ）の各成分に分離させ
る。この分離させた各成分をミラー５を介して、R,G,B
用の液晶表示装置４に入射せしめ、再びダイクロイック
ミラー３で合成し、投射レンズ６によって投射画像を得
る。Example 3 A projection display device was manufactured using the liquid crystal display device manufactured in Example 2. FIG. 4 shows the configuration of the optical system.
Incident light from a halogen lamp 1 with an elliptical spherical mirror is condensed by a lens 2 and made incident on a dichroic mirror 3 to be separated into red (R), green (G), and blue (B) components. The separated components are passed through a mirror 5 to R, G, B
To the liquid crystal display device 4 for imaging, and the images are synthesized again by the dichroic mirror 3 to obtain a projection image by the projection lens 6.
以上のような本実施例において、基板の間隙をシール
部のみで保持した液晶表示装置を用いたことにより、ギ
ャップコントロール材により生じる画素欠陥，配向不良
等を解消することができ、均一で高コントラスト比を有
するざらつきのない投射画像が得られた。In this embodiment as described above, by using the liquid crystal display device in which the gap between the substrates is held only by the seal portion, it is possible to eliminate pixel defects, poor alignment and the like caused by the gap control material, and to achieve uniform and high contrast. A grain-free projection image having a ratio was obtained.
以上の如く、本発明は、ギャップコントロール材が混
入されたシール材の配置領域及びその周辺部のみの該基
板の外側が押圧手段に接して、該シール材の配置領域及
びその周辺部のみの該基板の外側が押圧されることによ
り、基板中央部（表示部）への影響を抑えながら、一対
の基板を押圧することができるので、スイッチング素子
の断線や配線ショートを防ぐことができる。As described above, according to the present invention, the outside of the substrate only in the area where the seal material mixed with the gap control material is mixed and the periphery thereof is in contact with the pressing means, and only the area where the seal material is arranged and the area around the periphery thereof are contacted with the pressing means. By pressing the outside of the substrate, it is possible to press the pair of substrates while suppressing the influence on the central portion (display portion) of the substrate, so that disconnection of the switching element and short circuit of the wiring can be prevented.
また、ギャップコントロール材がシール材中のギャッ
プコントロール材のみで行えるため、ギャップコントロ
ールが容易になる。Further, since the gap control material can be performed only with the gap control material in the sealing material, the gap control becomes easy.
第１図（ａ），（ｂ），（ｃ），第３図（ａ），
（ｂ），（ｃ）は、液晶表示装置の要工程図。 第２図（ａ），（ｂ），（ｃ）は、従来の液晶表示装置
の要工程図。 １……透明基板 ２……ギャップコントロール材 ３……シール材 ４……圧着治具 ５……ポリシリコン薄膜トランジスター（TFT） ６……共通電極 ７……対向基板 ８……スペーサー 第４図は、投射型表示装置の光学系構成図。 １……楕円球面ミラー付ハロゲンランプ ２……レンズ ３……ダイクロイックミラー ４……液晶表示装置 ５……ミラー ６……投射レンズ1 (a), (b), (c), FIG. 3 (a),
(B), (c) is a key process diagram of a liquid crystal display device. 2 (a), 2 (b) and 2 (c) are main process diagrams of a conventional liquid crystal display device. DESCRIPTION OF SYMBOLS 1 ... Transparent substrate 2 ... Gap control material 3 ... Sealing material 4 ... Crimping jig 5 ... Polysilicon thin film transistor (TFT) 6 ... Common electrode 7 ... Counter substrate 8 ... Spacer FIG. 1 is an optical system configuration diagram of a projection display device. DESCRIPTION OF SYMBOLS 1 ... Halogen lamp with elliptical spherical mirror 2 ... Lens 3 ... Dichroic mirror 4 ... Liquid crystal display device 5 ... Mirror 6 ... Projection lens
Claims (2)
の基板の一方の基板上にはマトリクス状に配置されたス
イッチング素子を有してなる液晶装置の製造方法におい
て、 ギャップコントロール材が混入されたシール材を介して
該一対の基板を貼り合わせる工程と、 該一対の基板を挟んで押圧する押圧手段により、該一対
の基板を押圧する工程とを有し、 該一対の基板の片側の基板は、該シール材の配置領域及
びその周辺部のみの該基板の外側が該押圧手段に接し
て、該シール材の配置領域及びその周辺部のみの該基板
の外側が押圧されてなることを特徴とする液晶装置の製
造方法。1. A method for manufacturing a liquid crystal device, comprising: a liquid crystal sandwiched between a pair of substrates; and a switching device arranged in a matrix on one of the pair of substrates. Bonding the pair of substrates via a sealing material mixed with, and pressing the pair of substrates by a pressing unit that presses the pair of substrates. On one side of the substrate, the outside of the substrate only in the area where the sealing material is disposed and the periphery thereof is in contact with the pressing means, and the outside of the substrate only in the area where the sealing material is disposed and the periphery thereof is pressed. A method for manufacturing a liquid crystal device, comprising:
の基板の一方の基板上にはマトリクス状に配置されたス
イッチング素子を有してなる液晶装置の製造方法におい
て、 ギャップコントロール材が混入されたシール材を介して
該一対の基板を貼り合わせる工程と、 該一対の基板を挟んで押圧する押圧手段により、該一対
の基板を押圧する工程とを有し、 該一対の基板のそれぞれの基板は、該シール材の配置領
域及びその周辺部のみの該基板の外側が該押圧手段に接
して、該シール材の配置領域及びその周辺部のみの該基
板の外側が押圧されることを特徴とする液晶装置の製造
方法。2. A method for manufacturing a liquid crystal device, comprising: a liquid crystal sandwiched between a pair of substrates; and switching elements arranged in a matrix on one of the pair of substrates. Bonding the pair of substrates via a sealing material mixed with, and pressing the pair of substrates by a pressing unit that presses the pair of substrates. In each substrate, the outside of the substrate only in the area where the sealing material is disposed and the periphery thereof is in contact with the pressing means, and the outside of the substrate only in the area where the sealing material is disposed and the periphery thereof is pressed. A method for manufacturing a liquid crystal device, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62218831A JP2636255B2 (en) | 1987-09-01 | 1987-09-01 | Liquid crystal device manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62218831A JP2636255B2 (en) | 1987-09-01 | 1987-09-01 | Liquid crystal device manufacturing method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8084364A Division JP2616754B2 (en) | 1996-04-08 | 1996-04-08 | Liquid crystal device manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6461729A JPS6461729A (en) | 1989-03-08 |
| JP2636255B2 true JP2636255B2 (en) | 1997-07-30 |
Family
ID=16726026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62218831A Expired - Lifetime JP2636255B2 (en) | 1987-09-01 | 1987-09-01 | Liquid crystal device manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2636255B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05181117A (en) * | 1991-12-26 | 1993-07-23 | Semiconductor Energy Lab Co Ltd | Dispersed liquid crystal electro-optical device |
| US5729312A (en) * | 1994-03-18 | 1998-03-17 | Sharp Kabushiki Kaisha | LCD and method for producing the same in which a larger number of substrate gap control materials is larger in the polymer walls than in the liquid crystal regions |
| JP3483809B2 (en) | 1999-08-31 | 2004-01-06 | シャープ株式会社 | Substrate bonding method and bonding apparatus, and liquid crystal display device manufacturing method |
| KR20050108317A (en) * | 2003-03-18 | 2005-11-16 | 소니 가부시끼 가이샤 | Display device producing method and display device producing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5643678A (en) * | 1979-09-17 | 1981-04-22 | Matsushita Electric Ind Co Ltd | Production of image display panel |
| JPS5657022A (en) * | 1979-10-17 | 1981-05-19 | Seiko Epson Corp | Liquid crystal display device |
| JPS61219932A (en) * | 1985-03-26 | 1986-09-30 | Seiko Epson Corp | Production of liquid crystal display body |
-
1987
- 1987-09-01 JP JP62218831A patent/JP2636255B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5643678A (en) * | 1979-09-17 | 1981-04-22 | Matsushita Electric Ind Co Ltd | Production of image display panel |
| JPS5657022A (en) * | 1979-10-17 | 1981-05-19 | Seiko Epson Corp | Liquid crystal display device |
| JPS61219932A (en) * | 1985-03-26 | 1986-09-30 | Seiko Epson Corp | Production of liquid crystal display body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6461729A (en) | 1989-03-08 |
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