JPH0961829A - Liquid crystal display element manufacturing method - Google Patents
Liquid crystal display element manufacturing methodInfo
- Publication number
- JPH0961829A JPH0961829A JP7211743A JP21174395A JPH0961829A JP H0961829 A JPH0961829 A JP H0961829A JP 7211743 A JP7211743 A JP 7211743A JP 21174395 A JP21174395 A JP 21174395A JP H0961829 A JPH0961829 A JP H0961829A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- electrode substrate
- mask
- 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.)
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- Liquid Crystal (AREA)
Abstract
(57)【要約】
【課題】 液晶滴下法及び液晶注入法を用いて液晶表示
素子を製造する際に、紫外線によって劣化・分解するよ
うな液晶を用いた場合でも、表示均一性の高い液晶表示
素子を得ることのできる液晶表示素子の製造方法を提供
する。
【解決手段】 まず、第１の電極基板１の上に紫外線硬
化型シール材３を所定のパターンに形成する。次いで、
第１の電極基板１のシール材３で囲まれた領域に液晶４
を滴下すると共に、第１の電極基板１に相対向する第２
の電極基板２にギャップ制御用のスペーサー５を散布す
る。ここで、第２の電極基板２には、シール材３の内側
の面に位置するように表面を透明な保護層１５で覆われ
たカラーフィルター層１４が形成されている。次いで、
第１及び第２の電極基板１及び２を真空中で貼り合わ
せ、全体基板９を形成する。最後に、貼り合わせた全体
基板９に、光を透過する所定のパターンを有するマスク
６及び第２の電極基板２を介して紫外線ランプ８の紫外
線を照射する。
(57) Abstract: A liquid crystal display having high display uniformity even when a liquid crystal that is deteriorated or decomposed by ultraviolet rays is used in manufacturing a liquid crystal display element using a liquid crystal dropping method or a liquid crystal injection method. Provided is a method for manufacturing a liquid crystal display device capable of obtaining a device. First, an ultraviolet curable sealing material 3 is formed in a predetermined pattern on a first electrode substrate 1. Then
The liquid crystal 4 is formed in a region surrounded by the sealing material 3 of the first electrode substrate 1.
And a second electrode facing the first electrode substrate 1
Spacers 5 for gap control are scattered on the electrode substrate 2 of FIG. Here, on the second electrode substrate 2, a color filter layer 14 whose surface is covered with a transparent protective layer 15 is formed so as to be located on the inner surface of the sealing material 3. Then
The first and second electrode substrates 1 and 2 are bonded together in a vacuum to form a whole substrate 9. Finally, the bonded whole substrate 9 is irradiated with the ultraviolet rays of the ultraviolet lamp 8 through the mask 6 having a predetermined pattern for transmitting light and the second electrode substrate 2.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、液晶表示素子の製
造方法に関する。The present invention relates to a method for manufacturing a liquid crystal display device.
【０００２】[0002]
【従来の技術】従来の液晶滴下法及び液晶注入法を用い
た液晶表示素子の製造方法について説明する。図８は従
来技術における液晶滴下法を用いた液晶表示素子の製造
方法を示す工程図、図９は図８の紫外線照射工程を詳細
に示した断面図、図１０は従来技術における液晶注入法
を用いた液晶表示素子の製造方法を示す工程図である。2. Description of the Related Art A method of manufacturing a liquid crystal display device using a conventional liquid crystal dropping method and liquid crystal injection method will be described. FIG. 8 is a process diagram showing a method of manufacturing a liquid crystal display device using a liquid crystal dropping method in the prior art, FIG. 9 is a sectional view showing the ultraviolet irradiation process of FIG. 8 in detail, and FIG. 10 is a liquid crystal injection method in the conventional technique. FIG. 7 is a process drawing that shows the manufacturing method of the used liquid crystal display element.
【０００３】図８、図９において、まず、第１の電極基
板１の上に紫外線硬化型シール材３を所定のパターンに
形成する（図８（ａ））。次いで、第１の電極基板１の
シール材３で囲まれた領域に液晶４を滴下すると共に、
第１の電極基板１に相対向する第２の電極基板２にギャ
ップ制御用のスペーサー５を散布する（図８（ｂ））。
次いで、第１及び第２の電極基板１及び２を真空中で貼
り合わせる（図８（ｃ））。最後に、貼り合わせた全体
基板９に所定のパターンを有するマスク６を介して紫外
線ランプ８の紫外線を照射し、シール材３を硬化させる
（図８（ｄ））。これにより、液晶表示素子が得られ
る。図９に示すように、マスク６の全体基板９に向き合
う側には遮光層１０が形成されており、遮光層１０の形
成されていない部分を通して紫外線がシール材３に照射
される。この場合、遮光層１０の傷防止のために全体基
板９とマスク６との間にはクリアランスが設けられてお
り、また、照射する紫外線は平行光ではないので、シー
ル材３以外の部分にも紫外線が照射される。In FIGS. 8 and 9, first, the ultraviolet curable sealing material 3 is formed in a predetermined pattern on the first electrode substrate 1 (FIG. 8 (a)). Next, the liquid crystal 4 is dropped onto a region of the first electrode substrate 1 surrounded by the sealing material 3 and
Spacers 5 for gap control are scattered on the second electrode substrate 2 facing the first electrode substrate 1 (FIG. 8B).
Then, the first and second electrode substrates 1 and 2 are bonded together in a vacuum (FIG. 8C). Finally, the bonded whole substrate 9 is irradiated with the ultraviolet rays of the ultraviolet lamp 8 through the mask 6 having a predetermined pattern to cure the sealing material 3 (FIG. 8D). Thereby, a liquid crystal display element is obtained. As shown in FIG. 9, a light-shielding layer 10 is formed on the side of the mask 6 facing the entire substrate 9, and the sealing material 3 is irradiated with ultraviolet rays through a portion where the light-shielding layer 10 is not formed. In this case, a clearance is provided between the entire substrate 9 and the mask 6 in order to prevent the light shielding layer 10 from being scratched, and since the ultraviolet rays to be radiated are not parallel rays, the portions other than the sealing material 3 are also exposed. Ultraviolet rays are emitted.
【０００４】次に、図１０において、まず、周辺をシー
ル材３で囲まれた１対の電極基板間にギャップ制御用の
スペーサーを挟持してなる液晶パネル１１に、注入口１
３を介して液晶４を充填する（図１０（ａ））。次い
で、液晶充填後の注入口１３に紫外線硬化型樹脂１２を
塗布する（図１０（ｂ））。最後に、注入口１３に紫外
線ランプ８の紫外線を照射し、紫外線硬化型樹脂１２を
硬化させる（図１０（ｃ））。これにより、液晶表示素
子が製造される。Next, referring to FIG. 10, first, an injection port 1 is formed in a liquid crystal panel 11 in which a gap control spacer is sandwiched between a pair of electrode substrates surrounded by a sealing material 3.
The liquid crystal 4 is filled through 3 (FIG. 10A). Next, the ultraviolet curable resin 12 is applied to the injection port 13 after filling the liquid crystal (FIG. 10B). Finally, the injection port 13 is irradiated with the ultraviolet rays of the ultraviolet lamp 8 to cure the ultraviolet curable resin 12 (FIG. 10C). Thereby, the liquid crystal display element is manufactured.
【０００５】[0005]
【発明が解決しようとする課題】しかし、上記した従来
の液晶滴下法では、液晶４の材料として紫外線によって
劣化・分解するような液晶を用いた場合、マスク６から
漏れる紫外線によってシール材３の周辺部近傍における
液晶材料の劣化や分解が生ずるといった問題点がある。
また、上記した従来の液晶注入法でも、紫外線硬化型樹
脂１２を硬化させるために直接照射される紫外線によっ
て、注入口１３付近における液晶材料の劣化や分解が生
ずるといった問題点がある。そして、このように液晶材
料の劣化や分解が生ずると、液晶表示素子の表示均一性
が低下するといった問題点が派生する。However, in the above-mentioned conventional liquid crystal dropping method, when a liquid crystal which is deteriorated and decomposed by ultraviolet rays is used as the material of the liquid crystal 4, the periphery of the sealing material 3 is exposed by the ultraviolet rays leaking from the mask 6. There is a problem that the liquid crystal material is deteriorated or decomposed near the portion.
Also, the above-mentioned conventional liquid crystal injection method also has a problem that the liquid crystal material near the injection port 13 is deteriorated or decomposed by the ultraviolet light directly applied to cure the ultraviolet curable resin 12. When the liquid crystal material is deteriorated or decomposed in this way, the problem that the display uniformity of the liquid crystal display element is deteriorated is derived.
【０００６】本発明は、従来技術における前記課題を解
決するため、液晶滴下法及び液晶注入法を用いて液晶表
示素子を製造する際に、紫外線によって劣化・分解する
ような液晶を用いた場合でも、表示均一性の高い液晶表
示素子を得ることのできる液晶表示素子の製造方法を提
供することを目的とする。In order to solve the above problems in the prior art, the present invention uses a liquid crystal which is deteriorated / decomposed by ultraviolet rays when a liquid crystal display device is manufactured by a liquid crystal dropping method and a liquid crystal injection method. An object of the present invention is to provide a method for manufacturing a liquid crystal display device, which can obtain a liquid crystal display device with high display uniformity.
【０００７】[0007]
【問題を解決するための手段】前記目的を達成するた
め、本発明に係る液晶表示素子の第１の製造方法は、第
１又は第２の電極基板上に紫外線硬化型シール材を所定
のパターンに形成し、前記第１の電極基板の前記シール
材で囲まれた領域に液晶を滴下し、前記第１の電極基板
に相対向する第２の電極基板にギャップ制御用のスペー
サーを設け、前記第１及び第２の電極基板を真空中で貼
り合わせ、貼り合わされた前記第１及び第２の電極基板
に、光を透過する所定のパターンを有するマスクを介し
て紫外線を照射する液晶表示素子の製造方法であって、
前記シール材に紫外線を照射し、前記液晶には紫外線を
照射しないことを特徴とする。In order to achieve the above object, in a first method of manufacturing a liquid crystal display device according to the present invention, an ultraviolet curable sealant is formed on a first or second electrode substrate in a predetermined pattern. Liquid crystal is dropped onto a region of the first electrode substrate surrounded by the sealing material, and a spacer for gap control is provided on a second electrode substrate facing the first electrode substrate. A liquid crystal display device in which first and second electrode substrates are bonded together in a vacuum, and the bonded first and second electrode substrates are irradiated with ultraviolet rays through a mask having a predetermined pattern for transmitting light. A manufacturing method,
The sealing material is irradiated with ultraviolet rays and the liquid crystal is not irradiated with ultraviolet rays.
【０００８】また、前記本発明方法の第１の構成におい
ては、第１の電極基板にシール材の内側の面に位置する
ようにカラーフィルターを形成し、前記第１の電極基板
側にマスクを配置するのが好ましい。In the first configuration of the method of the present invention, a color filter is formed on the first electrode substrate so as to be located on the inner surface of the sealing material, and a mask is provided on the first electrode substrate side. It is preferably arranged.
【０００９】また、前記本発明方法の第１の構成におい
ては、第２の電極基板にシール材の内側の面に位置する
ようにカラーフィルターを形成し、前記第２の電極基板
側にマスクを配置するのが好ましい。In the first structure of the method of the present invention, a color filter is formed on the second electrode substrate so as to be located on the inner surface of the sealing material, and a mask is provided on the second electrode substrate side. It is preferably arranged.
【００１０】また、前記本発明方法の第１の構成におい
ては、マスクの所定のパターンの両側にガイドを形成
し、貼り合わされた前記第１及び第２の電極基板に前記
ガイドを密着させるのが好ましい。In the first structure of the method of the present invention, guides are formed on both sides of a predetermined pattern of the mask, and the guides are brought into close contact with the bonded first and second electrode substrates. preferable.
【００１１】また、前記本発明方法の第１の構成におい
ては、貼り合わされた第１及び第２の電極基板とマスク
との位置合わせを行うのが好ましい。また、この場合に
は、マスクのパターンの幅が３ｍｍ以下であるのが好ま
しい。Further, in the first structure of the method of the present invention, it is preferable to align the first and second electrode substrates that have been bonded to the mask. In this case, it is preferable that the width of the mask pattern is 3 mm or less.
【００１２】また、本発明に係る液晶表示素子の第２の
製造方法は、周辺をシール材で囲まれた１対の電極基板
間にギャップ制御用のスペーサーを挟持してなる液晶パ
ネルに、注入口を介して液晶を充填し、液晶充填後の前
記注入口に常温硬化型樹脂を塗布し、さらに前記常温硬
化型樹脂を覆うようにして紫外線硬化型樹脂を塗布し、
前記注入口に紫外線を照射して前記紫外線硬化型樹脂を
硬化することを特徴とする。A second method of manufacturing a liquid crystal display element according to the present invention is characterized in that a gap control spacer is sandwiched between a pair of electrode substrates surrounded by a sealing material. Fill the liquid crystal through the inlet, apply the room temperature curable resin to the injection port after the liquid crystal is filled, and further apply the ultraviolet curable resin so as to cover the room temperature curable resin,
The injection port is irradiated with ultraviolet rays to cure the ultraviolet curable resin.
【００１３】[0013]
【発明の実施の形態】前記本発明方法の第１の構成によ
れば、第１又は第２の電極基板上に紫外線硬化型シール
材を所定のパターンに形成し、前記第１の電極基板の前
記シール材で囲まれた領域に液晶を滴下し、前記第１の
電極基板に相対向する第２の電極基板にギャップ制御用
のスペーサーを設け、前記第１及び第２の電極基板を真
空中で貼り合わせ、貼り合わされた前記第１及び第２の
電極基板に、光を透過する所定のパターンを有するマス
クを介して紫外線を照射する液晶表示素子の製造方法で
あって、前記シール材に紫外線を照射し、前記液晶には
紫外線を照射しないことを特徴とするので、シール材の
周辺部における液晶が紫外線によって劣化・分解するこ
とはない。その結果、液晶表示素子の表示パネル全体に
おいて均一性の高い表示が得られる。BEST MODE FOR CARRYING OUT THE INVENTION According to the first configuration of the method of the present invention, an ultraviolet-curable sealing material is formed in a predetermined pattern on the first or second electrode substrate, and the first electrode substrate Liquid crystal is dropped in a region surrounded by the sealing material, a spacer for gap control is provided on a second electrode substrate facing the first electrode substrate, and the first and second electrode substrates are vacuumed. A method for manufacturing a liquid crystal display device, wherein the first and second electrode substrates that are bonded together are irradiated with ultraviolet light through a mask having a predetermined pattern that transmits light, wherein the sealing material is ultraviolet light. The liquid crystal in the peripheral portion of the sealing material is not deteriorated or decomposed by the ultraviolet light because the liquid crystal is irradiated with the light and the liquid crystal is not irradiated with the ultraviolet light. As a result, a highly uniform display can be obtained on the entire display panel of the liquid crystal display device.
【００１４】また、前記本発明方法の第１の構成におい
て、第１の電極基板にシール材の内側の面に位置するよ
うにカラーフィルターを形成し、前記第１の電極基板側
にマスクを配置するという好ましい例によれば、次のよ
うな作用を奏することができる。すなわち、所定のパタ
ーンを有するマスクを介し、カラーフィルターが形成さ
れた電極基板（第１の電極基板）側から紫外線を照射す
るようにしたので、マスクから紫外線が漏れた場合で
も、そのほとんどがカラーフィルターによって吸収（カ
ット）される。従って、シール材の周辺部における液晶
が紫外線によって劣化・分解することはない。そのた
め、液晶表示素子の表示パネル全体において均一性の高
い表示が得られる。In the first configuration of the method of the present invention, a color filter is formed on the first electrode substrate so as to be located on the inner surface of the sealing material, and a mask is arranged on the side of the first electrode substrate. According to the preferable example of doing, the following effects can be achieved. That is, since the ultraviolet rays are radiated from the side of the electrode substrate (first electrode substrate) on which the color filter is formed through the mask having the predetermined pattern, most of the ultraviolet rays even if the ultraviolet rays leak from the mask. It is absorbed (cut) by the filter. Therefore, the liquid crystal in the peripheral portion of the sealing material is not deteriorated or decomposed by the ultraviolet rays. Therefore, a display with high uniformity can be obtained in the entire display panel of the liquid crystal display element.
【００１５】また、前記本発明方法の第１の構成におい
て、第２の電極基板にシール材の内側の面に位置するよ
うにカラーフィルターを形成し、前記第２の電極基板側
にマスクを配置するという好ましい例によれば、次のよ
うな作用を奏することができる。すなわち、所定のパタ
ーンを有するマスクを介し、カラーフィルターが形成さ
れた電極基板（第２の電極基板）側から紫外線を照射す
るようにしたので、マスクから紫外線が漏れた場合で
も、そのほとんどがカラーフィルターによって吸収（カ
ット）される。従って、シール材の周辺部における液晶
が紫外線によって劣化・分解することはない。そのた
め、液晶表示素子の表示パネル全体において均一性の高
い表示が得られる。In the first structure of the method of the present invention, a color filter is formed on the second electrode substrate so as to be located on the inner surface of the sealing material, and a mask is arranged on the side of the second electrode substrate. According to the preferable example of doing, the following effects can be achieved. That is, since ultraviolet rays are radiated from the side of the electrode substrate (second electrode substrate) on which the color filter is formed through a mask having a predetermined pattern, even if ultraviolet rays leak from the mask, most of them are colored. It is absorbed (cut) by the filter. Therefore, the liquid crystal in the peripheral portion of the sealing material is not deteriorated or decomposed by the ultraviolet rays. Therefore, a display with high uniformity can be obtained in the entire display panel of the liquid crystal display element.
【００１６】また、前記本発明方法の第１の構成におい
て、マスクの所定のパターンの両側にガイドを形成し、
貼り合わされた前記第１及び第２の電極基板に前記ガイ
ドを密着させるという好ましい例によれば、次のような
作用を奏することができる。すなわち、所定のパターン
の両側にガイドが形成されたマスクを、貼り合わされた
第１及び第２の電極基板に密着させて紫外線を照射する
ようにしたので、マスクからの紫外線の漏れが低減され
る。従って、シール材の周辺部における液晶が紫外線に
よって劣化・分解することはない。そのため、液晶表示
素子の表示パネル全体において均一性の高い表示が得ら
れる。In the first configuration of the method of the present invention, guides are formed on both sides of a predetermined pattern of the mask,
According to a preferable example in which the guide is brought into close contact with the bonded first and second electrode substrates, the following operation can be achieved. That is, since a mask having guides formed on both sides of a predetermined pattern is brought into close contact with the adhered first and second electrode substrates to irradiate ultraviolet rays, leakage of ultraviolet rays from the mask is reduced. . Therefore, the liquid crystal in the peripheral portion of the sealing material is not deteriorated or decomposed by the ultraviolet rays. Therefore, a display with high uniformity can be obtained in the entire display panel of the liquid crystal display element.
【００１７】また、前記本発明方法の第１の構成におい
て、貼り合わされた第１及び第２の電極基板とマスクと
の位置合わせを行うという好ましい例によれば、次のよ
うな作用を奏することができる。すなわち、マスクの光
を透過するパターンとシール材との位置精度が向上し、
マスクのパターンの幅を狭くすることができるので、マ
スクからの紫外線の漏れが低減される。従って、シール
材の周辺部における液晶が紫外線によって劣化・分解す
ることはない。そのため、液晶表示素子の表示パネル全
体において均一性の高い表示が得られる。Further, in the first configuration of the method of the present invention, according to a preferred example in which the bonded first and second electrode substrates and the mask are aligned with each other, the following operation is achieved. You can That is, the positional accuracy of the pattern that transmits the light of the mask and the sealing material is improved,
Since the width of the mask pattern can be narrowed, the leakage of ultraviolet rays from the mask is reduced. Therefore, the liquid crystal in the peripheral portion of the sealing material is not deteriorated or decomposed by the ultraviolet rays. Therefore, a display with high uniformity can be obtained in the entire display panel of the liquid crystal display element.
【００１８】また、前記本発明方法の第２構成によれ
ば、周辺をシール材で囲まれた１対の電極基板間にギャ
ップ制御用のスペーサーを挟持してなる液晶パネルに、
注入口を介して液晶を充填し、液晶充填後の前記注入口
に常温硬化型樹脂を塗布し、さらに前記常温硬化型樹脂
を覆うようにして紫外線硬化型樹脂を塗布し、前記注入
口に紫外線を照射して前記紫外線硬化型樹脂を硬化する
ことを特徴とすることにより、次のような作用を奏する
ことができる。すなわち、液晶パネルに液晶を充填した
後、封口樹脂として常温硬化型樹脂と紫外線硬化型樹脂
とを併用するようにしたことにより、封口の強度を常温
硬化型樹脂でかせぎ、その外側を紫外線硬化型樹脂で被
覆することで常温硬化型樹脂の注入口への余分な流入を
防止することができる。このため、紫外線の照射量とし
ては紫外線硬化型樹脂の仮硬化程度の照射量で足りるの
で、液晶層に直接照射する紫外線の量を低減することが
できる。従って、注入口付近の液晶材料が紫外線によっ
て劣化・分解することはない。そのため、液晶表示素子
の表示パネル全体において均一性の高い表示が得られ
る。Further, according to the second structure of the method of the present invention, a liquid crystal panel in which a gap control spacer is sandwiched between a pair of electrode substrates surrounded by a sealing material,
Fill the liquid crystal through the injection port, apply the room temperature curable resin to the injection port after filling the liquid crystal, and further apply the UV curable resin so as to cover the room temperature curable resin, and apply the ultraviolet light to the injection port. By irradiating with the resin to cure the ultraviolet curable resin, the following effects can be achieved. That is, after filling the liquid crystal panel with liquid crystal, by using a room temperature curable resin and an ultraviolet curable resin together as the sealing resin, the strength of the seal is earned by the room temperature curable resin, and the outside is cured by the ultraviolet curable resin. By coating with the resin, it is possible to prevent excess inflow of the room temperature curable resin into the injection port. Therefore, the irradiation amount of the ultraviolet rays may be an irradiation amount of the provisional curing of the ultraviolet curable resin, so that the amount of the ultraviolet rays directly applied to the liquid crystal layer can be reduced. Therefore, the liquid crystal material near the injection port is not deteriorated or decomposed by the ultraviolet rays. Therefore, a display with high uniformity can be obtained in the entire display panel of the liquid crystal display element.
【００１９】[0019]
【実施例】以下、実施例を用いて本発明をさらに具体的
に説明する。 ＜第１の実施例＞図１は本発明に係る液晶表示素子の製
造方法の第１の実施例を示す工程図、図２は図１の紫外
線照射工程を詳細に示した断面図である。EXAMPLES The present invention will be described in more detail below with reference to examples. <First Embodiment> FIG. 1 is a process diagram showing a first embodiment of a method for manufacturing a liquid crystal display device according to the present invention, and FIG. 2 is a sectional view showing the ultraviolet irradiation process of FIG. 1 in detail.
【００２０】図１、図２において、まず、第１の電極基
板１の上に紫外線硬化型シール材３を所定のパターンに
形成する（図１（ａ））。次いで、第１の電極基板１の
シール材３で囲まれた領域に液晶４を滴下すると共に、
第１の電極基板１に相対向する第２の電極基板２にギャ
ップ制御用のスペーサー５を散布する（図１（ｂ））。
ここで、第２の電極基板２には、シール材３の内側の面
に位置するように表面を透明な保護層１５で覆われたカ
ラーフィルター層１４が形成されている。ここで、カラ
ーフィルター層１４としては、Ｒ（赤）、Ｇ（緑）、Ｂ
（青）の三原色から構成されるＲ・Ｇ・Ｂマイクロカラ
ーフィルターが用いられている。次いで、第１及び第２
の電極基板１及び２を真空中で貼り合わせ、全体基板９
を形成する（図１（ｃ））。最後に、貼り合わせた全体
基板９に、光を透過する所定のパターンを有するマスク
６及び第２の電極基板２を介して紫外線ランプ８の紫外
線を照射する（図１（ｄ））。これにより、液晶表示素
子が得られる。In FIGS. 1 and 2, first, the ultraviolet-curable sealing material 3 is formed in a predetermined pattern on the first electrode substrate 1 (FIG. 1 (a)). Next, the liquid crystal 4 is dropped onto a region of the first electrode substrate 1 surrounded by the sealing material 3 and
Spacers 5 for gap control are scattered on the second electrode substrate 2 facing the first electrode substrate 1 (FIG. 1B).
Here, on the second electrode substrate 2, a color filter layer 14 whose surface is covered with a transparent protective layer 15 is formed so as to be located on the inner surface of the sealing material 3. Here, as the color filter layer 14, R (red), G (green), B
R, G, B micro color filters composed of the three primary colors (blue) are used. Then, the first and second
The electrode substrates 1 and 2 of No. 1 are bonded together in a vacuum to form the whole substrate 9
Is formed (FIG. 1C). Finally, the bonded whole substrate 9 is irradiated with the ultraviolet rays of the ultraviolet lamp 8 through the mask 6 having a predetermined pattern for transmitting light and the second electrode substrate 2 (FIG. 1 (d)). Thereby, a liquid crystal display element is obtained.
【００２１】以上のようにして得られた液晶表示素子の
均一性評価を行ったところ、シール材３の周辺も含め、
液晶表示装置の表示パネル全体において均一性の高い表
示が実現された。また、点灯表示評価を行ったところ、
高い均一性を有する液晶表示素子が作製されていること
が確認された。しかし、従来のようにカラーフィルター
層１４が形成されていない電極基板側から紫外線を照射
した場合には、このような均質な表示は得られなかっ
た。The uniformity of the liquid crystal display element obtained as described above was evaluated.
A highly uniform display is realized on the entire display panel of the liquid crystal display device. Also, when the lighting display evaluation was performed,
It was confirmed that a liquid crystal display device having high uniformity was produced. However, when ultraviolet rays are radiated from the side of the electrode substrate on which the color filter layer 14 is not formed as in the conventional case, such a homogeneous display cannot be obtained.
【００２２】すなわち、本実施例においては、所定のパ
ターンを有するマスク６を介し、カラーフィルター層１
４が形成された第２の電極基板２側から紫外線を照射す
るようにしたので、マスク６から紫外線が漏れた場合で
も、そのほとんどがカラーフィルター層１４によって吸
収（カット）される。従って、シール材３の周辺部にお
ける液晶４が紫外線によって劣化・分解することはな
い。そのため、液晶表示素子の表示パネル全体において
均一性の高い表示が得られる。That is, in this embodiment, the color filter layer 1 is provided through the mask 6 having a predetermined pattern.
Since the ultraviolet rays are irradiated from the side of the second electrode substrate 2 on which 4 is formed, even if the ultraviolet rays leak from the mask 6, most of them are absorbed (cut) by the color filter layer 14. Therefore, the liquid crystal 4 in the peripheral portion of the sealing material 3 is not deteriorated or decomposed by the ultraviolet rays. Therefore, a display with high uniformity can be obtained in the entire display panel of the liquid crystal display element.
【００２３】尚、本実施例においては、カラーフィルタ
ーとしてＲ・Ｇ・Ｂマイクロカラーフィルターが用いら
れているが、必ずしもこれに限定されるものではなく、
感光性樹脂やクロムで形成されたブラックマトリクスに
よって周辺が囲まれたカラーフィルターを用いても同様
の効果が得られる。In this embodiment, the R, G, B micro color filters are used as the color filters, but the color filters are not necessarily limited to these.
The same effect can be obtained by using a color filter whose periphery is surrounded by a black matrix formed of a photosensitive resin or chrome.
【００２４】また、本実施例においては、カラーフィル
ター層１４が第２の電極基板２に形成されているが、必
ずしもこの構成に限定されるものではなく、カラーフィ
ルター層１４を第１の電極基板１に形成し、マスク６及
び第１の電極基板１を介して紫外線ランプ８の紫外線を
照射するようにしてもよい。Further, although the color filter layer 14 is formed on the second electrode substrate 2 in the present embodiment, it is not necessarily limited to this structure, and the color filter layer 14 is formed on the first electrode substrate 2. 1, and the ultraviolet rays of the ultraviolet lamp 8 may be irradiated through the mask 6 and the first electrode substrate 1.
【００２５】＜第２の実施例＞図３は本発明に係る液晶
表示素子の製造方法の第２の実施例を示す工程図、図４
は図３の紫外線照射工程を詳細に示した断面図である。<Second Embodiment> FIG. 3 is a process diagram showing a second embodiment of the method for manufacturing a liquid crystal display device according to the present invention, FIG.
FIG. 4 is a cross-sectional view showing the ultraviolet irradiation process of FIG. 3 in detail.
【００２６】図３、図４において、まず、第１の電極基
板１の上に紫外線硬化型シール材３を所定のパターンに
形成する（図３（ａ））。次いで、第１の電極基板１の
シール材３で囲まれた領域に液晶４を滴下すると共に、
第１の電極基板に相対向する第２の電極基板２にギャッ
プ制御用のスペーサー５を散布する（図３（ｂ））。次
いで、第１及び第２の電極基板１及び２を真空中で貼り
合わせ、全体基板９を形成する（図３（ｃ））。最後
に、貼り合わせた全体基板９に、光を透過する所定のパ
ターンを有し、パターンの両側にフッソゴム（旭ガラス
製）からなるガイド１６が形成されたマスク６を密着さ
せ、マスク６を介して紫外線ランプ８の紫外線を照射す
る（図３（ｄ）、図４）。これにより、液晶表示素子が
得られる。In FIGS. 3 and 4, first, the ultraviolet curable sealing material 3 is formed in a predetermined pattern on the first electrode substrate 1 (FIG. 3 (a)). Next, the liquid crystal 4 is dropped onto a region of the first electrode substrate 1 surrounded by the sealing material 3 and
Spacers 5 for gap control are scattered on the second electrode substrate 2 facing the first electrode substrate (FIG. 3B). Next, the first and second electrode substrates 1 and 2 are bonded together in a vacuum to form the whole substrate 9 (FIG. 3C). Finally, a mask 6 having a predetermined pattern for transmitting light and having guides 16 made of Fluoro rubber (made by Asahi Glass) formed on both sides of the pattern is closely attached to the bonded whole substrate 9, and the mask 6 is interposed therebetween. The ultraviolet lamp 8 irradiates the ultraviolet rays (FIGS. 3D and 4). Thereby, a liquid crystal display element is obtained.
【００２７】以上のようにして製造された液晶表示素子
の均一性評価を行ったところ、シール材３の周辺も含
め、液晶表示装置の表示パネル全体において均一性の高
い表示が得られた。また、点灯表示評価を行ったとこ
ろ、高い均一性を有する液晶表示素子が作製されている
ことが確認された。しかし、従来のようにマスク６にガ
イド１６を形成せず、マスク６と全体基板９を密着させ
ずに紫外線を照射した場合には、このような均質な表示
は得られなかった。When the uniformity of the liquid crystal display element manufactured as described above was evaluated, a display with high uniformity was obtained in the entire display panel of the liquid crystal display device including the periphery of the seal material 3. In addition, when the lighting display was evaluated, it was confirmed that a liquid crystal display element having high uniformity was manufactured. However, in the case where the guide 16 is not formed on the mask 6 and the ultraviolet rays are radiated without the mask 6 and the whole substrate 9 being brought into close contact as in the conventional case, such a uniform display cannot be obtained.
【００２８】すなわち、本実施例においては、所定のパ
ターンの両側にガイド１６が形成されたマスク６を、全
体基板９に密着させて紫外線を照射するようにしたの
で、マスク６からの紫外線の漏れが低減される。従っ
て、シール材３の周辺部における液晶４が紫外線によっ
て劣化・分解することはない。そのため、液晶表示素子
の表示パネル全体において均一性の高い表示が得られ
る。That is, in this embodiment, since the mask 6 having the guides 16 formed on both sides of the predetermined pattern is brought into close contact with the entire substrate 9 to irradiate the ultraviolet rays, the ultraviolet rays leak from the mask 6. Is reduced. Therefore, the liquid crystal 4 in the peripheral portion of the sealing material 3 is not deteriorated or decomposed by the ultraviolet rays. Therefore, a display with high uniformity can be obtained in the entire display panel of the liquid crystal display element.
【００２９】尚、本実施例においては、ガイド１６とし
てフッソゴムを用いているが、必ずしもこれに限定され
るものではなく、紫外線を通さないものであれば、上記
と同様の効果が得られる。In this embodiment, the fluoro rubber is used as the guide 16, but the guide 16 is not limited to this, and the same effect as described above can be obtained as long as it does not transmit ultraviolet rays.
【００３０】＜第３の実施例＞図５は本発明に係る液晶
表示素子の製造方法の第３の実施例を示す工程図、図６
は図５の紫外線照射工程を詳細に示した断面図である。<Third Embodiment> FIG. 5 is a process diagram showing a third embodiment of the method for manufacturing a liquid crystal display element according to the present invention, FIG.
FIG. 6 is a cross-sectional view showing the ultraviolet irradiation step of FIG. 5 in detail.
【００３１】図５、図６において、第１の電極基板１の
上に紫外線硬化型シール材３を所定のパターンに形成す
る（図５（ａ））。次いで、第１の電極基板１のシール
材３で囲まれた領域に液晶４を滴下すると共に、第１の
電極基板１に相対向する第２の電極基板２にギャップ制
御用のスペーサー５を設ける（図５（ｂ））。次いで、
第１及び第２の電極基板１及び２を真空中で貼り合わ
せ、全体基板９を形成する（図５（ｃ））。最後に、貼
り合わされた全体基板９と、光を透過する幅３ｍｍのパ
ターンを有するマスク６とをアラインメントマーク１７
を用いて位置合わせを行い、全体基板９にマスク６を介
して紫外線ランプ８の紫外線を照射する（図５
（ｄ））。これにより、液晶表示素子が得られる。In FIGS. 5 and 6, the ultraviolet curable sealing material 3 is formed in a predetermined pattern on the first electrode substrate 1 (FIG. 5 (a)). Next, the liquid crystal 4 is dropped on the region surrounded by the seal material 3 of the first electrode substrate 1, and the spacer 5 for gap control is provided on the second electrode substrate 2 facing the first electrode substrate 1. (FIG.5 (b)). Then
The first and second electrode substrates 1 and 2 are attached to each other in vacuum to form the whole substrate 9 (FIG. 5 (c)). Finally, the bonded whole substrate 9 and the mask 6 having a pattern having a width of 3 mm which transmits light are aligned with the alignment mark 17
The alignment is performed by using, and the whole substrate 9 is irradiated with the ultraviolet rays of the ultraviolet lamp 8 through the mask 6 (FIG. 5).
(D)). Thereby, a liquid crystal display element is obtained.
【００３２】以上のようにして製造された液晶表示素子
の均一性評価を行ったところ、シール材３の周辺も含
め、液晶表示装置の表示パネル全体において均一性の高
い表示が得られた。また、点灯表示評価を行ったとこ
ろ、高い均一性を有する液晶表示素子が作製されている
ことが確認された。しかし、従来のように５ｍｍ幅のマ
スクを介して全体基板９に紫外線を照射した場合には、
このような均質な表示は得られなかった。When the uniformity of the liquid crystal display element manufactured as described above was evaluated, a display with high uniformity was obtained in the entire display panel of the liquid crystal display device including the periphery of the sealing material 3. In addition, when the lighting display was evaluated, it was confirmed that a liquid crystal display element having high uniformity was manufactured. However, when the whole substrate 9 is irradiated with ultraviolet rays through a mask having a width of 5 mm as in the conventional case,
Such a homogeneous display could not be obtained.
【００３３】すなわち、本実施例においては、貼り合わ
された全体基板９とマスク６との位置合わせを行うよう
にしたことにより、マスク６の光を透過するパターンと
シール材３との位置精度が向上し、マスク６のパターン
の幅を３ｍｍ以下に狭くすることができるので、マスク
６からの紫外線の漏れが低減される。従って、シール材
３の周辺部における液晶４が紫外線によって劣化・分解
することはない。そのため、液晶表示素子の表示パネル
全体において均一性の高い表示が得られる。That is, in this embodiment, the positional accuracy between the pattern of the mask 6 which transmits light and the sealing material 3 is improved by adjusting the position of the bonded whole substrate 9 and the mask 6. However, since the pattern width of the mask 6 can be reduced to 3 mm or less, the leakage of ultraviolet rays from the mask 6 is reduced. Therefore, the liquid crystal 4 in the peripheral portion of the sealing material 3 is not deteriorated or decomposed by the ultraviolet rays. Therefore, a display with high uniformity can be obtained in the entire display panel of the liquid crystal display element.
【００３４】＜第４の実施例＞図７は本発明に係る液晶
表示素子の製造方法の第４の実施例を示す工程図であ
る。<Fourth Embodiment> FIG. 7 is a process diagram showing a fourth embodiment of the method for manufacturing a liquid crystal display element according to the present invention.
【００３５】図７において、まず、周辺をシール材３で
囲まれた１対の電極基板間にギャップ制御用のスペーサ
ーを挟持してなる液晶パネル１１に、注入口１３を介し
て液晶４を充填する（図７（ａ））。次いで、液晶充填
後の注入口１３に常温硬化型樹脂１８を塗布し、さらに
常温硬化型樹脂１８を覆うようにして紫外線硬化型樹脂
１２を塗布する（図７（ｂ））。最後に、注入口１３に
短時間だけ紫外線ランプ８の紫外線を照射し、紫外線硬
化型樹脂１２を硬化させる（図７（ｃ））。これによ
り、液晶表示素子が得られる。In FIG. 7, first, a liquid crystal panel 11 formed by sandwiching a spacer for gap control between a pair of electrode substrates surrounded by a sealing material 3 is filled with a liquid crystal 4 through an injection port 13. (FIG. 7A). Then, the room temperature curable resin 18 is applied to the injection port 13 after filling the liquid crystal, and the ultraviolet curable resin 12 is further applied so as to cover the room temperature curable resin 18 (FIG. 7B). Finally, the injection port 13 is irradiated with the ultraviolet rays of the ultraviolet lamp 8 for a short time to cure the ultraviolet curable resin 12 (FIG. 7C). Thereby, a liquid crystal display element is obtained.
【００３６】以上のようにして製造された液晶表示素子
の均一性評価を行ったところ、注入口１３の周辺も含
め、液晶表示装置の表示パネル全体において均一性の高
い表示が得られた。また、点灯表示評価を行ったとこ
ろ、高い均一性を有する液晶表示素子が作製されている
ことが確認された。しかし、従来のように紫外線硬化型
樹脂のみを用いた場合には、このような均質な表示は得
られなかった。When the uniformity of the liquid crystal display element manufactured as described above was evaluated, a display with high uniformity was obtained in the entire display panel of the liquid crystal display device including the periphery of the injection port 13. In addition, when the lighting display was evaluated, it was confirmed that a liquid crystal display element having high uniformity was manufactured. However, when only the ultraviolet curable resin is used as in the prior art, such a homogeneous display cannot be obtained.
【００３７】すなわち、本実施例においては、液晶パネ
ル１１に液晶を充填した後、封口樹脂として常温硬化型
樹脂１８と紫外線硬化型樹脂１２とを併用するようにし
たので、封口の強度を常温硬化型樹脂１８でかせぎ、そ
の外側を紫外線硬化型樹脂１２で被覆することで常温硬
化型樹脂１８の注入口１３への余分な流入を防止するこ
とができる。このため、紫外線の照射量としては紫外線
硬化型樹脂１２の仮硬化程度の照射量で足りるので、液
晶層に直接照射する紫外線の量を低減することができ
る。従って、注入口１３付近の液晶材料が紫外線によっ
て劣化・分解することはない。そのため、液晶表示素子
の表示パネル全体において均一性の高い表示が得られ
る。That is, in this embodiment, after the liquid crystal panel 11 is filled with the liquid crystal, the room-temperature curable resin 18 and the ultraviolet-curable resin 12 are used together as the sealing resin. It is possible to prevent excess inflow of the room temperature curable resin 18 into the injection port 13 by using the mold resin 18 and covering the outside with the ultraviolet curable resin 12. For this reason, the irradiation amount of the ultraviolet rays may be an irradiation amount of about the temporary curing of the ultraviolet curable resin 12, so that the amount of the ultraviolet rays directly applied to the liquid crystal layer can be reduced. Therefore, the liquid crystal material near the injection port 13 is not deteriorated or decomposed by the ultraviolet rays. Therefore, a display with high uniformity can be obtained in the entire display panel of the liquid crystal display element.
【００３８】[0038]
【発明の効果】以上説明したように、本発明に係る液晶
表示素子の製造方法によれば、液晶滴下法及び液晶注入
法を用いて液晶表示素子を製造する際に、紫外線で劣化
・分解する液晶を用いた場合でも、液晶表示素子の表示
パネル全体において均一性の高い表示が得られる。As described above, according to the method of manufacturing a liquid crystal display element of the present invention, when the liquid crystal display element is manufactured by the liquid crystal dropping method and the liquid crystal injection method, it is deteriorated and decomposed by ultraviolet rays. Even when liquid crystal is used, highly uniform display can be obtained in the entire display panel of the liquid crystal display element.
【図１】本発明に係る液晶表示素子の製造方法の第１の
実施例を示す工程図である。FIG. 1 is a process drawing showing a first embodiment of a method for manufacturing a liquid crystal display element according to the present invention.
【図２】本発明の液晶表示素子の製造方法の第１の実施
例における紫外線照射工程を詳細に示した断面図であ
る。FIG. 2 is a cross-sectional view showing in detail the ultraviolet irradiation step in the first embodiment of the method of manufacturing a liquid crystal display element of the present invention.
【図３】本発明に係る液晶表示素子の製造方法の第２の
実施例を示す工程図である。FIG. 3 is a process drawing showing a second embodiment of the method of manufacturing a liquid crystal display element according to the present invention.
【図４】本発明の液晶表示素子の製造方法の第２の実施
例における紫外線照射工程を詳細に示した断面図であ
る。FIG. 4 is a cross-sectional view showing in detail an ultraviolet ray irradiation step in the second embodiment of the method of manufacturing a liquid crystal display element of the present invention.
【図５】本発明に係る液晶表示素子の製造方法の第３の
実施例を示す工程図である。FIG. 5 is a process drawing showing a third embodiment of the method of manufacturing a liquid crystal display element according to the present invention.
【図６】本発明の液晶表示素子の製造方法の第３の実施
例における紫外線照射工程を詳細に示した断面図であ
る。FIG. 6 is a cross-sectional view showing in detail an ultraviolet irradiation step in the third embodiment of the method for manufacturing a liquid crystal display element of the present invention.
【図７】本発明に係る液晶表示素子の製造方法の第４の
実施例を示す工程図である。FIG. 7 is a process drawing showing a fourth embodiment of the method of manufacturing a liquid crystal display element according to the present invention.
【図８】従来技術における液晶滴下法を用いた液晶表示
素子の製造方法を示す工程図である。FIG. 8 is a process chart showing a method of manufacturing a liquid crystal display element using a liquid crystal dropping method in a conventional technique.
【図９】従来技術における液晶滴下法を用いた液晶表示
素子の製造方法における紫外線照射工程を詳細に示した
断面図である。FIG. 9 is a cross-sectional view showing in detail an ultraviolet irradiation step in a method of manufacturing a liquid crystal display element using a liquid crystal dropping method in the related art.
【図１０】従来技術における液晶注入法を用いた液晶表
示素子の製造方法を示す工程図である。FIG. 10 is a process chart showing a method of manufacturing a liquid crystal display element using a liquid crystal injection method in a conventional technique.
１ 第１の電極基板 ２ 第２の電極基板 ３ シール材 ４ 液晶 ５ スペーサー ６ マスク ８ 紫外線ランプ ９ 全体基板 １０ 遮光層 １１ 液晶パネル １２ 紫外線硬化型樹脂 １３ 注入口 １４ カラーフィルター層 １５ 保護膜 １６ ガイド １７ アラインメントマーク １８ 常温硬化型樹脂 1 First Electrode Substrate 2 Second Electrode Substrate 3 Sealing Material 4 Liquid Crystal 5 Spacer 6 Mask 8 Ultraviolet Lamp 9 Overall Substrate 10 Shading Layer 11 Liquid Crystal Panel 12 Ultraviolet Curing Resin 13 Pouring Port 14 Color Filter Layer 15 Protective Film 16 Guide 17 Alignment mark 18 Room temperature curable resin
Claims (7)
型シール材を所定のパターンに形成し、前記第１の電極
基板の前記シール材で囲まれた領域に液晶を滴下し、前
記第１の電極基板に相対向する第２の電極基板にギャッ
プ制御用のスペーサーを設け、前記第１及び第２の電極
基板を真空中で貼り合わせ、貼り合わされた前記第１及
び第２の電極基板に、光を透過する所定のパターンを有
するマスクを介して紫外線を照射する液晶表示素子の製
造方法であって、前記シール材に紫外線を照射し、前記
液晶には紫外線を照射しないことを特徴とする液晶表示
素子の製造方法。1. An ultraviolet curable sealant is formed in a predetermined pattern on a first or second electrode substrate, and liquid crystal is dropped onto a region of the first electrode substrate surrounded by the sealant. A spacer for gap control is provided on a second electrode substrate opposite to the first electrode substrate, the first and second electrode substrates are bonded together in a vacuum, and the bonded first and second electrodes are bonded together. A method of manufacturing a liquid crystal display device, wherein a substrate is irradiated with ultraviolet rays through a mask having a predetermined pattern that transmits light, wherein the sealing material is irradiated with ultraviolet rays and the liquid crystal is not irradiated with ultraviolet rays. And a method for manufacturing a liquid crystal display device.
位置するようにカラーフィルターを形成し、前記第１の
電極基板側にマスクを配置する請求項１に記載の液晶表
示素子の製造方法。2. The liquid crystal display element according to claim 1, wherein a color filter is formed on the first electrode substrate so as to be located on the inner surface of the sealing material, and a mask is arranged on the first electrode substrate side. Production method.
位置するようにカラーフィルターを形成し、前記第２の
電極基板側にマスクを配置する請求項１に記載の液晶表
示素子の製造方法。3. The liquid crystal display element according to claim 1, wherein a color filter is formed on the second electrode substrate so as to be located on the inner surface of the sealing material, and a mask is arranged on the second electrode substrate side. Production method.
を形成し、貼り合わされた前記第１及び第２の電極基板
に前記ガイドを密着させる請求項１に記載の液晶表示素
子の製造方法。4. The method of manufacturing a liquid crystal display device according to claim 1, wherein guides are formed on both sides of a predetermined pattern of the mask, and the guides are brought into close contact with the bonded first and second electrode substrates.
とマスクとの位置合わせを行う請求項１に記載の液晶表
示素子の製造方法。5. The method for manufacturing a liquid crystal display element according to claim 1, wherein the mask is aligned with the first and second electrode substrates that are bonded together.
る請求項５に記載の液晶表示素子の製造方法。6. The method of manufacturing a liquid crystal display device according to claim 5, wherein the width of the mask pattern is 3 mm or less.
板間にギャップ制御用のスペーサーを挟持してなる液晶
パネルに、注入口を介して液晶を充填し、液晶充填後の
前記注入口に常温硬化型樹脂を塗布し、さらに前記常温
硬化型樹脂を覆うようにして紫外線硬化型樹脂を塗布
し、前記注入口に紫外線を照射して前記紫外線硬化型樹
脂を硬化する液晶表示素子の製造方法。7. A liquid crystal panel in which a gap control spacer is sandwiched between a pair of electrode substrates surrounded by a sealing material is filled with liquid crystal through an injection port, and the liquid crystal is filled with the liquid crystal. A liquid crystal display device in which a room temperature curable resin is applied to an inlet, an ultraviolet ray curable resin is applied so as to cover the room temperature curable resin, and the inlet is irradiated with ultraviolet rays to cure the ultraviolet ray curable resin. Production method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7211743A JPH0961829A (en) | 1995-08-21 | 1995-08-21 | Liquid crystal display element manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7211743A JPH0961829A (en) | 1995-08-21 | 1995-08-21 | Liquid crystal display element manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0961829A true JPH0961829A (en) | 1997-03-07 |
Family
ID=16610858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7211743A Pending JPH0961829A (en) | 1995-08-21 | 1995-08-21 | Liquid crystal display element manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0961829A (en) |
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