JPH10104625A - Production of liquid crystal display device - Google Patents
Production of liquid crystal display deviceInfo
- Publication number
- JPH10104625A JPH10104625A JP25789396A JP25789396A JPH10104625A JP H10104625 A JPH10104625 A JP H10104625A JP 25789396 A JP25789396 A JP 25789396A JP 25789396 A JP25789396 A JP 25789396A JP H10104625 A JPH10104625 A JP H10104625A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- display device
- alignment film
- external connection
- 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
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液晶表示装置の製
造方法に関するもので、特に表示品位に優れ、信頼性の
高い液晶表示装置を得ることができる液晶表示装置の製
造方法に関するものである。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 having excellent display quality and high reliability.
【０００２】[0002]
【従来の技術】液晶材料の配向制御を行う配向膜は、電
極基板上の表示領域及びその外側のシール形成領域近傍
までの領域を覆うように形成され、液晶材料の配向制御
を行うという目的を果たしている。したがって、液晶表
示装置を構成する周辺部品の接続端子と電気的に接続す
るための液晶表示パネルの外部接続端子領域上には、配
向膜を形成する必要はない。2. Description of the Related Art An alignment film for controlling the alignment of a liquid crystal material is formed so as to cover a display region on an electrode substrate and a region outside the display region and in the vicinity of a seal forming region. Play. Therefore, it is not necessary to form an alignment film on the external connection terminal area of the liquid crystal display panel for electrically connecting to the connection terminals of the peripheral components constituting the liquid crystal display device.
【０００３】しかし、前述したような電極基板にラビン
グ法による配向処理を行う場合、液晶表示パネルの外部
接続端子は直接ラビング布による摩擦を受けるため、傷
がつきやすく、異物によって汚染され、周辺部品の接続
端子と電気的に接続する際に、導通不良を引き起こすと
いう問題点がある。However, when the rubbing method is applied to the electrode substrate as described above, the external connection terminals of the liquid crystal display panel are directly rubbed by the rubbing cloth, so that the external connection terminals are easily scratched, contaminated by foreign matters, and contaminated by peripheral components. There is a problem in that when electrically connected to the connection terminal of the above, a conduction failure is caused.
【０００４】さらに、配向膜を形成している領域と形成
していない領域との間には段差が存在しているため、こ
の段差部分でラビング布の毛足が乱れ、この毛足の乱れ
が表示領域の配向膜に転写された場合、ラビングむらが
生じて表示品位を劣化させるという問題点がある。Furthermore, since there is a step between the region where the alignment film is formed and the region where the alignment film is not formed, the rubbing cloth's fluff is disturbed at the step, and the fluff is disturbed. When transferred to the alignment film in the display area, there is a problem that rubbing unevenness occurs to deteriorate display quality.
【０００５】これらの問題点を解決する方法として、例
えば特開平５−１１２５０号公報及び特開平７−３０１
７７６号公報に開示されているように、電極基板上の外
部接続端子領域上にも配向膜等の保護膜を形成し、ラビ
ング法による配向処理を行った後、外部接続端子領域上
の配向膜等の保護膜をプラズマエッチング等によって除
去し、外部接続端子と周辺部品の接続端子とを電気的に
接続して液晶表示装置を得るという方法が提案されてい
る。As a method for solving these problems, for example, Japanese Patent Application Laid-Open Nos. Hei 5-11250 and Hei 7-301
As disclosed in Japanese Patent Application Laid-Open No. 776, a protective film such as an alignment film is also formed on an external connection terminal region on an electrode substrate, and after performing an alignment treatment by a rubbing method, an alignment film on the external connection terminal region is formed. A method has been proposed in which a protective film such as is removed by plasma etching or the like and an external connection terminal is electrically connected to a connection terminal of a peripheral component to obtain a liquid crystal display device.
【０００６】[0006]
【発明が解決しようとする課題】前述した特開平５−１
１２５０号公報及び特開平７−３０１７７６号公報で提
案されているような方法では、配向膜等の保護膜をプラ
ズマエッチング等によって除去するため、装置規模が大
きくなり、処理能力及び設備投資面で非常に不利となっ
てコストアップとなる。SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Application Laid-Open No. 5-1 has been disclosed.
In the method proposed in Japanese Patent Application Laid-Open No. 1250 and Japanese Patent Application Laid-Open No. 7-301776, the protective film such as an alignment film is removed by plasma etching or the like. Disadvantage and cost increase.
【０００７】本発明は、以上のような従来の問題点に鑑
みなされたものであって、表示品位に優れ、信頼性の高
い液晶表示装置を得ることができる液晶表示装置の製造
方法を提供することを目的としている。The present invention has been made in view of the above-mentioned conventional problems, and provides a method of manufacturing a liquid crystal display device capable of obtaining a liquid crystal display device having excellent display quality and high reliability. It is intended to be.
【０００８】[0008]
【課題を解決するための手段】前述した目的を達成する
ために、本発明の請求項１記載の液晶表示素子の製造方
法は、電極基板の全面に配向膜を形成し、ラビング法に
よる配向処理を行った後、液晶表示パネルの外部接続端
子上に形成された配向膜を除去し、前記外部接続端子と
液晶表示装置を構成する周辺部品の接続端子とを電気的
に接続する液晶表示装置の製造方法において、前記外部
接続端子上に形成された配向膜を、紫外線を照射するこ
とによって除去することを特徴としている。According to a first aspect of the present invention, there is provided a method of manufacturing a liquid crystal display device, comprising: forming an alignment film on an entire surface of an electrode substrate; After that, the alignment film formed on the external connection terminal of the liquid crystal display panel is removed, and the liquid crystal display device for electrically connecting the external connection terminal to connection terminals of peripheral components constituting the liquid crystal display device. The manufacturing method is characterized in that the alignment film formed on the external connection terminal is removed by irradiating ultraviolet rays.
【０００９】請求項２記載の液晶表示装置の製造方法
は、請求項１記載の液晶表示装置の製造方法において、
一対の電極基板を貼り合わせた後、電極基板の一方をマ
スクとし、前記外部接続端子上に形成された配向膜に紫
外線を照射することを特徴としている。According to a second aspect of the present invention, there is provided a method of manufacturing a liquid crystal display device according to the first aspect.
After bonding a pair of electrode substrates, one of the electrode substrates is used as a mask, and the alignment film formed on the external connection terminals is irradiated with ultraviolet rays.
【００１０】請求項３記載の液晶表示装置の製造方法
は、請求項２記載の液晶表示装置の製造方法において、
前記外部接続端子上に形成された配向膜の除去を、液晶
表示装置の製造工程における最終の加熱処理工程の前に
行うことを特徴としている。According to a third aspect of the present invention, there is provided a method of manufacturing a liquid crystal display device according to the second aspect.
The removal of the alignment film formed on the external connection terminal is performed before a final heat treatment step in a manufacturing process of the liquid crystal display device.
【００１１】本発明の液晶表示素子の製造方法によれ
ば、電極基板の全面に配向膜を形成し、ラビング法によ
る配向処理を行った後、液晶表示パネルの外部接続端子
上に形成された配向膜を除去し、前記外部接続端子と液
晶表示装置を構成する周辺部品の接続端子とを電気的に
接続する液晶表示装置の製造方法において、前記外部接
続端子上に形成された配向膜を、紫外線を照射すること
によって除去することにより、液晶表示パネルの外部接
続端子は直接ラビング布による摩擦を受けないため、傷
がつくことがなく、異物によって汚染されることがない
ので、周辺部品の接続端子と電気的に接続する際に、導
通不良を引き起こすことがない。According to the method of manufacturing a liquid crystal display element of the present invention, an alignment film is formed on the entire surface of an electrode substrate, subjected to an alignment treatment by a rubbing method, and then formed on an external connection terminal of the liquid crystal display panel. In a method of manufacturing a liquid crystal display device in which a film is removed and the external connection terminals are electrically connected to connection terminals of peripheral components constituting the liquid crystal display device, the alignment film formed on the external connection terminals may be made of an ultraviolet ray. The external connection terminals of the liquid crystal display panel are not directly rubbed by the rubbing cloth, so that they are not damaged and are not contaminated by foreign substances. When it is electrically connected to the power supply, no poor conduction occurs.
【００１２】さらに、ラビング時に電極基板の全面に配
向膜が形成されているため、電極基板の表面は段差のな
い平坦な状態となり、段差部分でラビング布の毛足が乱
れ、この毛足の乱れが表示領域の配向膜に転写され、ラ
ビングむらが生じて表示品位を劣化させることがない。Further, since the alignment film is formed on the entire surface of the electrode substrate at the time of rubbing, the surface of the electrode substrate is in a flat state without any step, and the rubbing cloth's fluff is disturbed at the step, and this fluff is disturbed. Is transferred to the alignment film in the display region, and rubbing unevenness does not occur, thereby deteriorating the display quality.
【００１３】さらに、電極基板の全面に配向膜を形成す
るため、配向膜形成時に高精度の位置合わせが不要とな
り、スループットを向上させることができるとともに、
配向膜形成時の位置ずれによる不良をなくすことができ
る。Further, since the alignment film is formed on the entire surface of the electrode substrate, high-precision alignment is not required at the time of forming the alignment film, and the throughput can be improved.
It is possible to eliminate defects due to misalignment during formation of the alignment film.
【００１４】また、一対の電極基板を貼り合わせた後、
電極基板の一方をマスクとし、前記外部接続端子上に形
成された配向膜に紫外線を照射することにより、自己整
合的に配向膜を除去することができ、液晶表示パネルの
搬送中であっても紫外線を照射して配向膜を除去するこ
とができるため、スループットの向上とコストダウンと
を実現することができる。After bonding the pair of electrode substrates,
By using one of the electrode substrates as a mask and irradiating the alignment film formed on the external connection terminals with ultraviolet light, the alignment film can be removed in a self-aligned manner, even during the transportation of the liquid crystal display panel. Since the alignment film can be removed by irradiating ultraviolet rays, an improvement in throughput and a reduction in cost can be realized.
【００１５】また、前記外部接続端子上に形成された配
向膜の除去を、液晶表示装置の製造工程における最終の
加熱処理工程の前に行うことにより、紫外線を照射して
配向膜を除去する際に、表示領域の配向膜に影響が及ん
だ場合であっても、加熱処理工程を行うことによって配
向特性を回復させることができる。Further, by removing the alignment film formed on the external connection terminal before the final heat treatment step in the manufacturing process of the liquid crystal display device, the alignment film can be removed by irradiating ultraviolet rays. Even if the alignment film in the display region is affected, the heat treatment process can recover the alignment characteristics.
【００１６】[0016]
【発明の実施の形態】図１及び図４を用いて、本発明の
実施の形態について説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.
【００１７】（実施の形態１）図１及び図２を用いて、
本発明の実施の形態１について説明する。図１は本発明
に係わる液晶表示装置の製造方法を示す工程図、図２は
図１の続きの液晶表示装置の製造方法を示す工程図であ
る。(Embodiment 1) Referring to FIGS. 1 and 2,
Embodiment 1 of the present invention will be described. FIG. 1 is a process diagram showing a method for manufacturing a liquid crystal display device according to the present invention, and FIG. 2 is a process diagram showing a method for manufacturing a liquid crystal display device continued from FIG.
【００１８】図１（ａ）に示すように、ガラスまたはプ
ラスチック等からなる電極基板１上にＩＴＯ等からなる
透明導電膜２を形成し、フォトリソグラフィ法等によっ
て表示電極及び外部接続端子を形成する。As shown in FIG. 1A, a transparent conductive film 2 made of ITO or the like is formed on an electrode substrate 1 made of glass or plastic, and a display electrode and an external connection terminal are formed by a photolithography method or the like. .
【００１９】さらに、表示領域に透明絶縁膜３を形成
し、電極基板１上の全面にポリイミドまたはポリビニル
アルコール等からなる配向膜４を、５０〜１００ｎｍの
厚さにオフセット印刷法によって形成して、ラビング法
によって配向処理を行う。Further, a transparent insulating film 3 is formed in the display region, and an alignment film 4 made of polyimide or polyvinyl alcohol is formed on the entire surface of the electrode substrate 1 to a thickness of 50 to 100 nm by offset printing. An alignment treatment is performed by a rubbing method.
【００２０】このラビング法による配向処理の際には、
電極基板１の表面は配向膜４によって段差のない平坦な
状態となっているため、均一な摩擦ストレスでもってラ
ビングすることができ、ラビング布の毛足が乱れること
がないとともに、外部接続端子を傷つけることがない。In the alignment treatment by the rubbing method,
Since the surface of the electrode substrate 1 is in a flat state with no steps due to the alignment film 4, rubbing can be performed with uniform frictional stress, the rubbing of the rubbing cloth is not disturbed, and the external connection terminals are connected. Does not hurt.
【００２１】次に、図１（ｂ）に示すように、マスク５
を介して紫外線６を配向膜４に照射し、図１（ｃ）に示
すように、外部接続端子上の配向膜４を除去する。Next, as shown in FIG.
Then, the alignment film 4 is irradiated with ultraviolet rays 6 through the substrate, and as shown in FIG. 1C, the alignment film 4 on the external connection terminals is removed.
【００２２】紫外線６としては、低圧水銀灯を用いて波
長が１８５ｎｍ及び２５４ｎｍの光を６００〜８００ｍ
Ｊ／ｃｍ2（波長１８５ｎｍ）及び１０００ｍＪ／ｃｍ2
（波長２５４ｎｍ）で照射する。波長が１８５ｎｍの光
で酸素ガスを分解し、波長が２５４ｎｍの光と酸素ラジ
カルとにより、有機物からなる配向膜４を分解して二酸
化炭素または水等に変化させて除去する。As the ultraviolet rays 6, a low-pressure mercury lamp is used to emit light having wavelengths of 185 nm and 254 nm for 600 to 800 m.
J / cm 2 (wavelength 185 nm) and 1000 mJ / cm 2
(Wavelength 254 nm). Oxygen gas is decomposed by light having a wavelength of 185 nm, and the alignment film 4 made of an organic substance is decomposed by light having a wavelength of 254 nm and oxygen radicals to be changed into carbon dioxide or water and removed.
【００２３】次に、図２（ａ）に示すように、シール７
を介して一対の電極基板１を貼り合わせる。このとき、
一対の電極基板１間は空気層８である。そして、各液晶
表示パネル毎に分断を行い、図２（ｂ）に示すように、
液晶材料９の注入を行って液晶表示パネルを得る。Next, as shown in FIG.
The pair of electrode substrates 1 are bonded together via the above. At this time,
An air space 8 is provided between the pair of electrode substrates 1. Then, the liquid crystal display panel is divided for each liquid crystal display panel, and as shown in FIG.
The liquid crystal material 9 is injected to obtain a liquid crystal display panel.
【００２４】さらに、フェノール樹脂またはポリスルホ
ン樹脂等の接着剤中に、ニッケルまたは金等の導電性粒
子を分散させた異方性導電材料を外部接続端子上に塗布
し、この異方性導電材料上に周辺部品の接続端子を配設
する。そして、熱圧着を行うことにより、外部接続端子
と周辺部品の接続端子とを電気的に接続し、液晶表示装
置を得る。Further, an anisotropic conductive material in which conductive particles such as nickel or gold are dispersed in an adhesive such as a phenol resin or a polysulfone resin is applied on the external connection terminals. The connection terminals of the peripheral parts are arranged in the area. Then, by performing thermocompression bonding, the external connection terminals and the connection terminals of the peripheral components are electrically connected to obtain a liquid crystal display device.
【００２５】（実施の形態２）図３及び図４を用いて、
本発明の実施の形態２について説明する。図３は本発明
に係わる別の液晶表示装置の製造方法を示す工程図、図
４は図３の続きの液晶表示装置の製造方法を示す工程図
である。(Embodiment 2) Referring to FIGS. 3 and 4,
Embodiment 2 of the present invention will be described. FIG. 3 is a process diagram showing a method for manufacturing another liquid crystal display device according to the present invention, and FIG. 4 is a process diagram showing a method for manufacturing a liquid crystal display device continued from FIG.
【００２６】図３（ａ）に示すように、ガラスまたはプ
ラスチック等からなる電極基板１上にＩＴＯ等からなる
透明導電膜２を形成し、フォトリソグラフィ法等によっ
て表示電極及び外部接続端子を形成する。As shown in FIG. 3A, a transparent conductive film 2 made of ITO or the like is formed on an electrode substrate 1 made of glass or plastic, and a display electrode and an external connection terminal are formed by photolithography or the like. .
【００２７】さらに、表示領域に透明絶縁膜３を形成
し、電極基板１上の全面にポリイミドまたはポリビニル
アルコール等からなる配向膜４を、５０〜１００ｎｍの
厚さにオフセット印刷法によって形成して、ラビング法
によって配向処理を行う。Further, a transparent insulating film 3 is formed in the display region, and an alignment film 4 made of polyimide or polyvinyl alcohol is formed on the entire surface of the electrode substrate 1 to a thickness of 50 to 100 nm by offset printing. An alignment treatment is performed by a rubbing method.
【００２８】このラビング法による配向処理の際には、
電極基板１の表面は配向膜４によって段差のない平坦な
状態となっているため、均一な摩擦ストレスでもってラ
ビングすることができ、ラビング布の毛足が乱れること
がないとともに、外部接続端子を傷つけることがない。In the alignment treatment by the rubbing method,
Since the surface of the electrode substrate 1 is in a flat state with no steps due to the alignment film 4, rubbing can be performed with uniform frictional stress, the rubbing of the rubbing cloth is not disturbed, and the external connection terminals are connected. Does not hurt.
【００２９】そして、図３（ｂ）に示すように、シール
７を介して一対の電極基板１を貼り合わせる。このと
き、一対の電極基板１間は空気層８である。さらに、図
３（ｃ）に示すように、各液晶表示パネル毎に分断を行
う。Then, as shown in FIG. 3B, the pair of electrode substrates 1 are bonded via the seal 7. At this time, there is an air space 8 between the pair of electrode substrates 1. Further, as shown in FIG. 3C, the liquid crystal display panel is divided.
【００３０】次に、図４（ａ）に示すように、対向する
電極基板１をマスクとして、紫外線６を配向膜４に照射
し、図４（ｂ）に示すように、外部接続端子上の配向膜
４を除去し、液晶材料９の注入を行って加熱処理するこ
とにより、液晶表示パネルを得る。Next, as shown in FIG. 4A, the alignment film 4 is irradiated with ultraviolet rays 6 using the opposing electrode substrate 1 as a mask, and as shown in FIG. The liquid crystal display panel is obtained by removing the alignment film 4, injecting the liquid crystal material 9, and performing heat treatment.
【００３１】紫外線６としては、低圧水銀灯を用いて波
長が１８５ｎｍ及び２５４ｎｍの光を６００〜８００ｍ
Ｊ／ｃｍ2（波長１８５ｎｍ）及び１０００ｍＪ／ｃｍ2
（波長２５４ｎｍ）で照射する。波長が１８５ｎｍの光
で酸素ガスを分解し、波長が２５４ｎｍの光と酸素ラジ
カルとにより、有機物からなる配向膜４を分解して二酸
化炭素または水等に変化させて除去する。As the ultraviolet light 6, light having wavelengths of 185 nm and 254 nm is irradiated using a low-pressure mercury lamp for 600 to 800 m.
J / cm 2 (wavelength 185 nm) and 1000 mJ / cm 2
(Wavelength 254 nm). Oxygen gas is decomposed by light having a wavelength of 185 nm, and the alignment film 4 made of an organic substance is decomposed by light having a wavelength of 254 nm and oxygen radicals to be changed into carbon dioxide or water and removed.
【００３２】液晶材料９の注入後に１００℃で３０分間
の加熱処理を行うことにより、対向する電極基板１をマ
スクとして紫外線６を照射することによって影響を受け
た表示領域の配向膜４の配向特性を回復させることがで
きる。By performing a heat treatment at 100 ° C. for 30 minutes after the injection of the liquid crystal material 9, the alignment characteristics of the alignment film 4 in the display region affected by the irradiation of the ultraviolet rays 6 with the opposing electrode substrate 1 as a mask. Can be recovered.
【００３３】また、例えばソーダライムガラスまたは無
アルカリガラス等の電極基板１における波長が１８５ｎ
ｍ及び２５４ｎｍの光の透過率は約１％と低く、対向す
る電極基板１をマスクとして紫外線６を照射しても表示
領域の配向膜４を損傷してしまうことはないが、マスク
５を用いて外部接続端子上の配向膜４を除去してもよ
い。The electrode substrate 1 made of, for example, soda lime glass or non-alkali glass has a wavelength of 185 n.
The transmittance of light of m and 254 nm is as low as about 1%. Irradiation of ultraviolet rays 6 with the opposing electrode substrate 1 as a mask does not damage the alignment film 4 in the display area. Alternatively, the alignment film 4 on the external connection terminal may be removed.
【００３４】そして、フェノール樹脂またはポリスルホ
ン樹脂等の接着剤中に、ニッケルまたは金等の導電性粒
子を分散させた異方性導電材料を外部接続端子上に塗布
し、この異方性導電材料上に周辺部品の接続端子を配設
する。そして、熱圧着を行うことにより、外部接続端子
と周辺部品の接続端子とを電気的に接続し、液晶表示装
置を得る。Then, an anisotropic conductive material in which conductive particles such as nickel or gold are dispersed in an adhesive such as a phenol resin or a polysulfone resin is applied to the external connection terminals, and The connection terminals of the peripheral parts are arranged in the area. Then, by performing thermocompression bonding, the external connection terminals and the connection terminals of the peripheral components are electrically connected to obtain a liquid crystal display device.
【００３５】[0035]
【発明の効果】以上の説明のように、本発明の液晶表示
素子の製造方法によれば、電極基板の全面に配向膜を形
成し、ラビング法による配向処理を行った後、液晶表示
パネルの外部接続端子上に形成された配向膜を除去し、
前記外部接続端子と液晶表示装置を構成する周辺部品の
接続端子とを電気的に接続する液晶表示装置の製造方法
において、前記外部接続端子上に形成された配向膜を、
紫外線を照射することによって除去することにより、液
晶表示パネルの外部接続端子と周辺部品の接続端子とを
電気的に接続する際に導通不良を引き起こすことがない
とともに、ラビング法による配向処理時にラビングむら
が生じて表示品位を劣化させることがないため、良品率
を向上させることができ、表示品位に優れ、信頼性の高
い液晶表示装置を得ることができる。As described above, according to the method for manufacturing a liquid crystal display device of the present invention, an alignment film is formed on the entire surface of an electrode substrate, and after performing an alignment treatment by a rubbing method, the liquid crystal display panel is manufactured. Remove the alignment film formed on the external connection terminal,
In a method for manufacturing a liquid crystal display device for electrically connecting the external connection terminals and connection terminals of peripheral components constituting the liquid crystal display device, an alignment film formed on the external connection terminals,
By removing by irradiating ultraviolet rays, it does not cause a conduction failure when electrically connecting the external connection terminals of the liquid crystal display panel and the connection terminals of the peripheral components, and uneven rubbing during the alignment treatment by the rubbing method. Since the display quality is not degraded due to the occurrence of defects, the yield can be improved, and a liquid crystal display device having excellent display quality and high reliability can be obtained.
【００３６】さらに、電極基板の全面に配向膜を形成す
るため、配向膜形成時に高精度の位置合わせが不要とな
り、スループットを向上させることができるとともに、
配向膜形成時の位置ずれによる不良をなくすことができ
る。Further, since the alignment film is formed on the entire surface of the electrode substrate, high-precision alignment is not required at the time of forming the alignment film, and the throughput can be improved.
It is possible to eliminate defects due to misalignment during formation of the alignment film.
【００３７】また、一対の電極基板を貼り合わせた後、
電極基板の一方をマスクとし、前記外部接続端子上に形
成された配向膜に紫外線を照射することにより、自己整
合的に配向膜を除去することができ、スループットの向
上とコストダウンとを実現することができる。After bonding a pair of electrode substrates,
By irradiating the alignment film formed on the external connection terminals with ultraviolet rays using one of the electrode substrates as a mask, the alignment film can be removed in a self-aligned manner, thereby improving the throughput and reducing the cost. be able to.
【００３８】また、前記外部接続端子上に形成された配
向膜の除去を、液晶表示装置の製造工程における最終の
加熱処理工程の前に行うことにより、紫外線を照射して
配向膜を除去する際に、表示領域の配向膜に影響が及ん
だ場合であっても、加熱処理工程を行うことによって配
向特性を回復させることができる。Further, by removing the alignment film formed on the external connection terminal before the final heat treatment step in the manufacturing process of the liquid crystal display device, the alignment film is removed by irradiating ultraviolet rays. Even if the alignment film in the display region is affected, the heat treatment process can recover the alignment characteristics.
【図１】（ａ）〜（ｃ）は本発明に係わる液晶表示装置
の製造方法を示す工程図である。FIGS. 1A to 1C are process diagrams showing a method for manufacturing a liquid crystal display device according to the present invention.
【図２】（ａ）及び（ｂ）は図１の続きの液晶表示装置
の製造方法を示す工程図である。FIGS. 2 (a) and 2 (b) are process diagrams showing a method of manufacturing the liquid crystal display device continued from FIG. 1;
【図３】（ａ）〜（ｃ）は本発明に係わる別の液晶表示
装置の製造方法を示す工程図である。FIGS. 3A to 3C are process diagrams illustrating another method for manufacturing a liquid crystal display device according to the present invention.
【図４】（ａ）及び（ｂ）は図３の続きの液晶表示装置
の製造方法を示す工程図である。FIGS. 4A and 4B are process diagrams showing a method for manufacturing the liquid crystal display device, which is continued from FIG.
１ 電極基板 ２ 透明導電膜 ３ 透明絶縁膜 ４ 配向膜 ５ マスク ６ 紫外線 ７ シール ８ 空気層 ９ 液晶材料 Reference Signs List 1 electrode substrate 2 transparent conductive film 3 transparent insulating film 4 alignment film 5 mask 6 ultraviolet ray 7 seal 8 air layer 9 liquid crystal material
Claims (3)
ング法による配向処理を行った後、液晶表示パネルの外
部接続端子上に形成された配向膜を除去し、前記外部接
続端子と液晶表示装置を構成する周辺部品の接続端子と
を電気的に接続する液晶表示装置の製造方法において、
前記外部接続端子上に形成された配向膜を、紫外線を照
射することによって除去することを特徴とする液晶表示
素子の製造方法。An alignment film is formed on the entire surface of an electrode substrate, and after performing an alignment treatment by a rubbing method, an alignment film formed on an external connection terminal of a liquid crystal display panel is removed. In a method of manufacturing a liquid crystal display device for electrically connecting a connection terminal of a peripheral component constituting the display device,
A method for manufacturing a liquid crystal display element, comprising: removing an alignment film formed on the external connection terminal by irradiating ultraviolet rays.
基板の一方をマスクとし、前記外部接続端子上に形成さ
れた配向膜に紫外線を照射することを特徴とする請求項
１記載の液晶表示装置の製造方法。2. The liquid crystal according to claim 1, wherein after bonding the pair of electrode substrates, one of the electrode substrates is used as a mask to irradiate the alignment film formed on the external connection terminal with ultraviolet light. A method for manufacturing a display device.
の除去を、液晶表示装置の製造工程における最終の加熱
処理工程の前に行うことを特徴とする請求項２記載の液
晶表示装置の製造方法。3. The liquid crystal display device according to claim 2, wherein the removal of the alignment film formed on the external connection terminal is performed before a final heat treatment step in a manufacturing process of the liquid crystal display device. Production method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25789396A JP3299893B2 (en) | 1996-09-30 | 1996-09-30 | Manufacturing method of liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25789396A JP3299893B2 (en) | 1996-09-30 | 1996-09-30 | Manufacturing method of liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10104625A true JPH10104625A (en) | 1998-04-24 |
| JP3299893B2 JP3299893B2 (en) | 2002-07-08 |
Family
ID=17312659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25789396A Expired - Fee Related JP3299893B2 (en) | 1996-09-30 | 1996-09-30 | Manufacturing method of liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3299893B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6327012B1 (en) | 1997-12-22 | 2001-12-04 | Sharp Kabushiki Kaisha | Method for manufacturing liquid crystal display |
| US8593600B2 (en) * | 2006-06-30 | 2013-11-26 | Lg Display Co., Ltd. | Liquid crystal panel fabrication method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018189723A (en) | 2017-04-28 | 2018-11-29 | 株式会社ジャパンディスプレイ | Liquid crystal display |
-
1996
- 1996-09-30 JP JP25789396A patent/JP3299893B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6327012B1 (en) | 1997-12-22 | 2001-12-04 | Sharp Kabushiki Kaisha | Method for manufacturing liquid crystal display |
| US8593600B2 (en) * | 2006-06-30 | 2013-11-26 | Lg Display Co., Ltd. | Liquid crystal panel fabrication method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3299893B2 (en) | 2002-07-08 |
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