JPH0961829A - Production of liquid crystal display element - Google Patents

Production of liquid crystal display element

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Publication number
JPH0961829A
JPH0961829A JP21174395A JP21174395A JPH0961829A JP H0961829 A JPH0961829 A JP H0961829A JP 21174395 A JP21174395 A JP 21174395A JP 21174395 A JP21174395 A JP 21174395A JP H0961829 A JPH0961829 A JP H0961829A
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Japan
Prior art keywords
liquid crystal
crystal display
electrode substrate
display device
mask
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Pending
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JP21174395A
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Japanese (ja)
Inventor
Hideki Matsukawa
Atsumasa Naitou
Satoru Shinsenji
温勝 内藤
秀樹 松川
哲 秦泉寺
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Matsushita Electric Ind Co Ltd
松下電器産業株式会社
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Application filed by Matsushita Electric Ind Co Ltd, 松下電器産業株式会社 filed Critical Matsushita Electric Ind Co Ltd
Priority to JP21174395A priority Critical patent/JPH0961829A/en
Publication of JPH0961829A publication Critical patent/JPH0961829A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide a process for producing a liquid crystal display element capable of producing the liquid crystal display element having high display uniformity in spite of use of such liquid crystals that are deteriorated and decomposed by UV rays at the time of producing the liquid crystal display element by using a liquid crystal dropping method and liquid crystal injection method. SOLUTION: A UV curing sealing material 3 is first formed to prescribed patterns on a first electrode substrate 1. The liquid crystals 4 are then dropped to the region enclosed by the sealing material 3 of the first electrode substrate 1 and spacers 5 for controlling a gap are sprayed on a second electrode substrate 2 facing the first electrode substrate 1. A color filter 14 covered with a transparent protective layer 15 on its surface is formed on the second electrode substrate 2 so as to exist on the surface on the inner side of the sealing the 3. The first and second electrode substrates 1 and 2 are then stuck to each other in vacuum to form the entire part of substrate 9. Finally the stuck entire part of substrate 9 is irradiated with the UV rays of a UV lamp 8 via a mask 6 having the prescribed patterns to allow the transmission of light and the second electrode substrate 2.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【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。 A method for manufacturing the liquid crystal display device using the Conventional liquid crystal dropping method and a liquid crystal injection method. 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。 8 is views illustrating 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 of the ultraviolet irradiation step shown in detail in FIG. 8, a liquid crystal injection method in FIG. 10 prior art method of manufacturing a liquid crystal display device using a process diagram showing a.

【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))。 [0003] In FIGS. 8 and 9, first, a UV curable seal material 3 in a predetermined pattern on the first electrode substrate 1 (FIG. 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、 Then, the liquid crystal is dropped 4 in the region surrounded by the first sealing member 3 of the electrode substrate 1,
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))。 Spraying spacers 5 for controlling the gap to the second electrode substrate 2 facing the first electrode substrate 1 (Figure 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))。 Then, the first and second electrode substrates 1 and 2 bonded in a vacuum (FIG. 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))。 Finally, through a mask 6 having a predetermined pattern on the entire substrate 9 was bonded is irradiated with ultraviolet rays of the ultraviolet lamp 8 to cure the seal material 3 (FIG. 8 (d)). これにより、液晶表示素子が得られる。 Thus, the liquid crystal display device can be obtained. 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。 As shown in FIG. 9, on the side facing the entire substrate 9 of the mask 6 is light-shielding layer 10 is formed, ultraviolet rays are irradiated to the sealing material 3 through the portion not formed with the light shielding layer 10. 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 this case, a clearance is provided between the whole for preventing scratches substrate 9 and the mask 6 of the light-shielding layer 10, and because the irradiated ultraviolet ray is not parallel light, even a portion other than the seal material 3 ultraviolet rays are irradiated.

【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 [0004] Next, in FIG. 10, first, the liquid crystal panel 11 formed by sandwiching a spacer for controlling a gap between a pair of electrode substrates having Surrounded by the sealant 3, inlet 1
3を介して液晶4を充填する(図10(a))。 3 through the filling liquid 4 (FIG. 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))。 Then, the injection port 13 after the liquid crystal filling coating the ultraviolet curing resin 12 (Figure 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))。 Finally, an ultraviolet ultraviolet lamp 8 irradiates the inlet 13 to cure the ultraviolet curing resin 12 (FIG. 10 (c)). これにより、液晶表示素子が製造される。 Thus, the liquid crystal display device 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。 [SUMMARY OF THE INVENTION However, in the conventional liquid crystal dropping method as described above, when a liquid crystal such that degradation or decomposition by ultraviolet rays as the material of the liquid crystal 4, the periphery of the sealing member 3 by ultraviolet rays leaking from the mask 6 parts there is a problem such as deterioration or decomposition of the liquid crystal material occurs in the vicinity.
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。 Also, in the conventional liquid crystal injection method described above, by ultraviolet rays directly irradiated to cure the ultraviolet curing resin 12, there is a problem such as deterioration or decomposition of the liquid crystal material occurs in the vicinity of the inlet 13. 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。 When thus resulting deterioration and decomposition of the liquid crystal material, display uniformity of a liquid crystal display element is derived is a problem that decreases.

【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。 [0006] The present invention is, for solving the problem in the prior art, in manufacturing a liquid crystal display device using a liquid crystal dropping method and a liquid crystal injection method, even in the case of using a liquid crystal as deteriorated and decomposed by ultraviolet rays , and to provide a method of manufacturing a liquid crystal display device capable of obtaining a high liquid crystal display element of the 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、 Means for Solving the Problems] To achieve the above object, a first method of manufacturing a liquid crystal display device according to the present invention, predetermined pattern an ultraviolet-curing sealing material to the first or second electrode on the substrate formed in the liquid crystal is dropped in the region surrounded by the sealing material of the first electrode substrate is provided with a spacer for controlling a gap to the second electrode substrate opposing to the first electrode substrate, the the first and second electrode substrates bonded in vacuum, the said bonded first and second electrode substrates, the liquid crystal display device is irradiated with ultraviolet rays through a mask having a predetermined pattern for transmitting light a manufacturing method,
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。 Irradiating ultraviolet radiation to said sealing member, wherein the liquid crystal is characterized by not irradiated with ultraviolet light.

【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。 [0008] In the above first aspect of the present invention method, the first color filter to be located on the inner surface of the sealing material is formed on the electrode substrate, the mask on the first electrode substrate side 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。 [0009] In the above first aspect of the present invention method, the second color filter to be located on the inner surface of the sealing material is formed on the electrode substrate, the mask on the second electrode substrate side 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。 [0010] In the first configuration of the present invention a method, to form a guide on both sides of the predetermined pattern of the mask, the adhering the bonded together the said guide to said 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。 [0011] In the above first aspect of the present invention method, preferably to align the first and second electrode substrate and the mask are bonded is. 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。 In this case, it is preferable that the width of the pattern of the mask is less than 3mm.

【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、 [0012] The second method of manufacturing a liquid crystal display device according to the present invention, the liquid crystal panel formed by sandwiching a spacer for controlling a gap between a pair of electrode substrates having Surrounded by the sealant, Note filled with liquid through the inlet, a cold-setting resin is applied to the inlet after the liquid crystal filling, an ultraviolet curable resin is applied so as to cover the cold-setting resin,
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。 Characterized by curing the ultraviolet curable resin by irradiating ultraviolet rays to said inlet.

【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。 According to the first configuration of the embodiment of the Invention the present invention method, an ultraviolet-curing sealing material is formed in a predetermined pattern on the first or second electrode on the substrate, the first electrode substrate liquid crystal is dropped in a region surrounded by the sealing material, the provided spacer for controlling a gap to the second electrode substrate facing the first electrode substrate, a vacuum in said first and second electrode substrates bonding, in said bonded first and second electrode substrates, the manufacturing method for the liquid crystal display device through a mask having a predetermined pattern for transmitting light is irradiated with ultraviolet rays, ultraviolet rays to the sealing member irradiating the so said the liquid crystal is characterized by not irradiated with ultraviolet rays, not the liquid crystal is deteriorated and decomposed by ultraviolet rays at the periphery of the sealing member. 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。 As a result, highly uniform display in the entire display panel of the liquid crystal display device can be obtained.

【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。 Further, in the first configuration of the present invention method, a color filter to be located on the inner surface of the sealing material to the first electrode substrate is formed, placing a mask on the first electrode substrate side According to a preferred embodiment that can achieve the following effects. 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。 That is, the color through a mask having a predetermined pattern, since the electrode substrate on which the color filter is formed (first electrode substrate) side to irradiate the ultraviolet rays, even if the ultraviolet leaks from the mask, most of which It is absorbed (cut) by the filter. 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。 Therefore, never liquid crystal is deteriorated and decomposed by ultraviolet rays at the periphery of the sealing member. 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。 Therefore, highly uniform display in the entire display panel of the liquid crystal display device can be obtained.

【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。 Further, in the first configuration of the present invention method, the second color filter to be located on the inner surface of the sealing material is formed on the electrode substrate, placing a mask on the second electrode substrate side According to a preferred embodiment that can achieve the following effects. 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。 That is, the color through a mask having a predetermined pattern, since the electrode substrate on which the color filter is formed (second electrode substrate) side to irradiate the ultraviolet rays, even if the ultraviolet leaks from the mask, most of which It is absorbed (cut) by the filter. 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。 Therefore, never liquid crystal is deteriorated and decomposed by ultraviolet rays at the periphery of the sealing member. 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。 Therefore, highly uniform display in the entire display panel of the liquid crystal display device can be obtained.

【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、 Further, in the first configuration of the present invention a method, to form a guide on both sides of the predetermined pattern of the mask,
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。 According to a preferred embodiment of adhering the bonded together the said first and said guide to the second electrode substrate, it is possible to obtain the following effects. 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。 That is, the mask guide is formed on both sides of a predetermined pattern, so brought into close contact with the first and second electrode substrates bonded by a so as to irradiate the ultraviolet rays, the leakage of ultraviolet rays from the mask is reduced . 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。 Therefore, never liquid crystal is deteriorated and decomposed by ultraviolet rays at the periphery of the sealing member. 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。 Therefore, highly uniform display in the entire display panel of the liquid crystal display device can be obtained.

【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。 Further, in the first configuration of the present invention a method, according to a preferred embodiment of performing alignment of the first and second electrode substrate and the mask are bonded together, it yields the following effects can. 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、 That improves the positional accuracy between the pattern and the seal member which transmits light of the mask,
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。 It is possible to narrow the width of the pattern of the mask, the leakage of ultraviolet rays from the mask are reduced. 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。 Therefore, never liquid crystal is deteriorated and decomposed by ultraviolet rays at the periphery of the sealing member. 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。 Therefore, highly uniform display in the entire display panel of the liquid crystal display device can be obtained.

【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、 Further, according to the second configuration of the present invention method, the liquid crystal panel formed by sandwiching a spacer for controlling a gap between a pair of electrode substrates having Surrounded by the sealant,
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。 Filled with liquid through the inlet, a cold-setting resin is applied to the inlet after the liquid crystal filling, an ultraviolet curable resin is applied so as to cover the cold-setting resins, ultraviolet to the inlet by irradiated, it characterized in that curing the ultraviolet curable resin, can be obtained the following effects. 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。 That is, after filling the liquid crystal in the liquid crystal panel, by which is adapted to combination with a cold-setting resin and an ultraviolet curable resin as a sealing resin, earn strength of the sealing at ambient temperature curing resin, ultraviolet curable its outer it is possible to prevent excess flowing into the inlet of the cold-setting resin by coating with a resin. 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。 Therefore, the irradiation amount of the ultraviolet because sufficient irradiation amount of about temporary curing of the ultraviolet curable resin, it is possible to reduce the amount of ultraviolet rays irradiated directly to the liquid crystal layer. 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。 Therefore, there is no possibility that the liquid crystal material near the inlet is deteriorated and decomposed by ultraviolet rays. 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。 Therefore, highly uniform display in the entire display panel of the liquid crystal display device can be obtained.

【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。 EXAMPLES Hereinafter, a more detailed description of the present invention with reference to examples. <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。 Process diagram showing a first embodiment of a method of manufacturing a liquid crystal display device <First embodiment> FIG. 1 according to the present invention, FIG. 2 is a sectional view showing in detail the ultraviolet irradiation step in Figure 1.

【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))。 [0020] In FIGS. 1 and 2, first, a UV curable seal material 3 in a predetermined pattern on the first electrode substrate 1 (Figure 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、 Then, the liquid crystal is dropped 4 in the region surrounded by the first sealing member 3 of the electrode substrate 1,
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))。 Spraying spacers 5 for controlling the gap to the second electrode substrate 2 facing the first electrode substrate 1 (Figure 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。 Here, the second electrode substrate 2, the color filter layer 14 covered with transparent protective layer 15 to the surface to be positioned on the inner surface of the sealing member 3 is formed. ここで、カラーフィルター層14としては、R(赤)、G(緑)、B Here, the color filter layer 14, R (red), G (green), 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。 (Blue) R · G · B micro color filter composed of the three primary colors of is used. 次いで、第1及び第2 Then, the first and second
の電極基板1及び2を真空中で貼り合わせ、全体基板9 The electrode substrates 1 and 2 laminated in a vacuum, the whole substrate 9
を形成する(図1(c))。 The formed (FIG. 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))。 Finally, the entire laminated substrate 9, is irradiated with ultraviolet rays of the ultraviolet lamp 8 through the mask 6 and the second electrode substrate 2 having a predetermined pattern for transmitting light (FIG. 1 (d)). これにより、液晶表示素子が得られる。 Thus, the liquid crystal display device can be 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、 [0021] was subjected to uniformity evaluation of liquid crystal display elements obtained as described above, including the periphery of the seal member 3,
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。 Display with high uniformity in the entire display panel of the liquid crystal display device is achieved. また、点灯表示評価を行ったところ、 In addition, it was carried out the lighting display evaluation,
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。 It was confirmed that the liquid crystal display device having a high uniformity is produced. 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。 However, when irradiated with ultraviolet rays from a conventional electrode substrate on which the color filter layer 14 is not formed as such a homogeneous display was not 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 [0022] That is, in this embodiment, through a mask 6 having a predetermined pattern, a color filter layer 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。 4 since it is irradiated with ultraviolet light from the second electrode substrate 2 side is formed, even if the leaked ultraviolet from the mask 6, most is absorbed (cut) by the color filter layer 14. 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。 Therefore, never liquid crystal 4 is deteriorated and decomposed by ultraviolet rays at the periphery of the sealing member 3. 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。 Therefore, highly uniform display in the entire display panel of the liquid crystal display device can be obtained.

【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、 [0023] In the present embodiment, it has been used R · G · B micro color filter as the color filter, not necessarily limited thereto,
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。 Similar effects can be obtained by using a color filter around surrounded by the 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, in the present embodiment, the color filter layer 14 is formed on the second electrode substrate 2 is not necessarily limited to this configuration, the first electrode substrate a color filter layer 14 formed in 1, it may be irradiated with ultraviolet rays of the ultraviolet lamp 8 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 The process diagram showing a second embodiment of a method of manufacturing a liquid crystal display device according to <Second Embodiment> FIG. 3 is the invention, FIG. 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。 Is a sectional view showing in detail the ultraviolet irradiation step in Figure 3.

【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))。 [0026] 3, 4, first, on the first electrode substrate 1 to form an ultraviolet-curing sealing material 3 in a predetermined pattern (Figure 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、 Then, the liquid crystal is dropped 4 in the region surrounded by the first sealing member 3 of the electrode substrate 1,
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))。 A second electrode substrate 2 facing the first electrode substrate to spray the spacer 5 for controlling the gap (Figure 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))。 Then, the first and second electrode substrates 1 and 2 laminated in a vacuum, to form the entire substrate 9 (Figure 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)。 Finally, the entire substrate 9 by bonding, having a predetermined pattern for transmitting light, are brought into close contact with the mask 6 in which the guide 16 is formed consisting of fluorine rubber (manufactured by Asahi Glass) on both sides of the pattern, through a mask 6 Te is irradiated with ultraviolet rays of the ultraviolet lamp 8 (FIG. 3 (d), the Figure 4). これにより、液晶表示素子が得られる。 Thus, the liquid crystal display device can be 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。 [0027] was subjected to uniformity evaluation of the liquid crystal display device manufactured as described above, including the periphery of the sealing member 3, a highly uniform display throughout the display panel of the liquid crystal display device was obtained. 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。 When it was lit display evaluation, the liquid crystal display device having high uniformity that is produced was confirmed. 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。 However, without forming the guide 16 in the mask 6 as in the prior art, when irradiated with ultraviolet rays without close contact with the entire substrate 9 and the mask 6, such homogeneous display was not 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。 [0028] That is, in this embodiment, the mask 6 the guide 16 is formed on both sides of the predetermined pattern. Thus irradiated with ultraviolet rays in close contact over the entire substrate 9, the leakage of ultraviolet rays from the mask 6 There is reduced. 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。 Therefore, never liquid crystal 4 is deteriorated and decomposed by ultraviolet rays at the periphery of the sealing member 3. 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。 Therefore, highly uniform display in the entire display panel of the liquid crystal display device can be obtained.

【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。 [0029] In the present embodiment uses a fluorine rubber as the guide 16, not necessarily limited thereto, as long as it does not pass ultraviolet, same effects can be obtained.

【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 The process diagram showing a third embodiment of a method of manufacturing a liquid crystal display device according to <Third Embodiment> FIG. 5 is the invention, FIG. 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。 Is a sectional view showing in detail the ultraviolet irradiation step in FIG.

【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))。 [0031] In FIGS. 5 and 6, to form an ultraviolet-curing sealing material 3 in a predetermined pattern on the first electrode substrate 1 (Figure 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))。 Then, the liquid crystal is dropped 4 in the region surrounded by the first sealing member 3 of the electrode substrate 1, it is provided a spacer 5 for controlling the gap to the second electrode substrate 2 facing the first electrode substrate 1 (Figure 5 (b)). 次いで、 Then,
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))。 The first and second electrode substrates 1 and 2 laminated in a vacuum, to form the entire substrate 9 (FIG. 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 Finally, the entire substrate 9 bonded, alignment mark and a mask 6 having a pattern with a width 3mm to transmit light 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 Performs positioning using, it is irradiated with ultraviolet rays of the ultraviolet lamp 8 through a mask 6 on the entire substrate 9 (FIG. 5
(d))。 (D)). これにより、液晶表示素子が得られる。 Thus, the liquid crystal display device can be 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。 [0032] was subjected to uniformity evaluation of the liquid crystal display device manufactured as described above, including the periphery of the sealing member 3, a highly uniform display throughout the display panel of the liquid crystal display device was obtained. 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。 When it was lit display evaluation, the liquid crystal display device having high uniformity that is produced was confirmed. 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、 However, when irradiated with ultraviolet light to the entire substrate 9 through a conventional mask 5mm width as,
このような均質な表示は得られなかった。 Such a uniform display was not 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。 [0033] That is, in this embodiment, by which is adapted to align the and the whole substrate 9 was bonded mask 6, improve the positional accuracy between the pattern and the seal member 3 which transmits light of the mask 6 and, since the width of the pattern of the mask 6 can be reduced to 3mm or less, the leakage of ultraviolet rays from the mask 6 is reduced. 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。 Therefore, never liquid crystal 4 is deteriorated and decomposed by ultraviolet rays at the periphery of the sealing member 3. 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。 Therefore, highly uniform display in the entire display panel of the liquid crystal display device can be obtained.

【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。 [0034] <Fourth Embodiment> FIG. 7 is a process diagram showing a fourth embodiment of a manufacturing method of a liquid crystal display device 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))。 [0035] In FIG 7, first, the liquid crystal panel 11 formed by sandwiching a spacer for controlling a gap between a pair of electrode substrates having Surrounded by the sealant 3, a liquid crystal 4 via the inlet 13 fill to (Fig. 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))。 Then, a cold-setting resin 18 is applied to the inlet 13 after the liquid crystal filling, further applying a UV curable resin 12 so as to cover the cold-setting resin 18 (FIG. 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))。 Finally, UV only ultraviolet lamp 8 briefly inlet 13 is irradiated to cure the ultraviolet curing resin 12 (FIG. 7 (c)). これにより、液晶表示素子が得られる。 Thus, the liquid crystal display device can be 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。 [0036] was subjected to uniformity evaluation of the liquid crystal display device manufactured as described above, including the periphery of the inlet 13, display with high uniformity in the entire display panel of the liquid crystal display device was obtained. 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。 When it was lit display evaluation, the liquid crystal display device having high uniformity that is produced was confirmed. 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。 However, when using only conventional UV-curable resin as is such homogeneous display was not 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。 [0037] That is, in this embodiment, after filling the liquid crystal in the liquid crystal panel 11. Thus the combined use of cold-setting resin 18 and the ultraviolet curing resin 12 as a sealing resin, room temperature setting the strength of the sealing mold resin 18 migrant, it is possible to prevent the extra influx of the outside to the inlet 13 of the cold-setting resin 18 by coating an ultraviolet curable resin 12. 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。 Therefore, the irradiation amount of the ultraviolet because sufficient irradiation amount of about temporary curing of the ultraviolet curable resin 12, it is possible to reduce the amount of ultraviolet rays irradiated directly to the liquid crystal layer. 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。 Therefore, there is no possibility that the liquid crystal material near the inlet 13 is deteriorated and decomposed by ultraviolet rays. 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。 Therefore, highly uniform display in the entire display panel of the liquid crystal display device can be obtained.

【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 in the foregoing, according to the manufacturing method of the liquid crystal display device according to the present invention, when manufacturing the liquid crystal display device using a liquid crystal dropping method and a liquid crystal injection method, degradation Decomposes UV even when using a liquid crystal, high uniformity displayed in the entire display panel of the liquid crystal display device can be obtained.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【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。 It is a process diagram showing a first embodiment of a method of manufacturing a liquid crystal display device according to the present invention; FIG.

【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。 2 is a cross-sectional view showing the ultraviolet irradiation step in detail in the first embodiment of the method of manufacturing the liquid crystal display device 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。 It is a process diagram showing a second embodiment of a method of manufacturing a liquid crystal display device according to the present invention; FIG.

【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。 4 is a cross-sectional view showing the ultraviolet irradiation step in detail in the second example of the manufacturing method of the liquid crystal display device 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。 It is a process diagram showing a third embodiment of a method of manufacturing a liquid crystal display device according to the present invention; FIG.

【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。 6 is a third cross-sectional view showing the ultraviolet irradiation step in detail in the embodiment of the manufacturing method of the liquid crystal display device 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。 It is a process diagram showing a fourth embodiment of a manufacturing method of a liquid crystal display device according to the present invention; FIG.

【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。 8 is a process diagram showing a manufacturing method of a liquid crystal display device using a liquid crystal dropping method in the prior art.

【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。 9 is a sectional view showing the ultraviolet irradiation step in detail in the method of manufacturing the liquid crystal display device using a liquid crystal dropping method in the prior 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。 10 is a process diagram showing a manufacturing method of a liquid crystal display device using a liquid crystal injection method in the prior art.

【符号の説明】 DESCRIPTION OF SYMBOLS

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 the first electrode substrate 2 a second electrode substrate 3 seal member 4 crystal 5 spacers 6 mask 8 UV lamps 9 entire substrate 10 light shielding layer 11 liquid crystal panel 12 UV-curable resin 13 injection port 14 color filter layer 15 protective film 16 guide 17 alignment marks 18 cold-setting resin

Claims (7)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 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液晶表示素子の製造方法。 1. A ultraviolet-curable sealing material formed in a predetermined pattern on the first or second electrode on the substrate, liquid crystal is dropped in the region where the surrounded by the sealing material of the first electrode substrate, the first to the second electrode substrate opposing the electrode substrate provided a spacer for controlling gap, the first and second electrode substrates bonded in a vacuum, said bonded first and second electrodes wherein the substrate, the manufacturing method for the liquid crystal display device is irradiated with ultraviolet rays through a mask having a predetermined pattern for transmitting light, ultraviolet rays are irradiated to the sealing material, said the liquid crystal not irradiated with ultraviolet light method of manufacturing a liquid crystal display element according to.
  2. 【請求項2】 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請求項1に記載の液晶表示素子の製造方法。 2. A form a color filter to be located on the inner surface of the first electrode substrate in the sealant, a liquid crystal display device according to claim 1 to place the mask on the first electrode substrate side Production method.
  3. 【請求項3】 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請求項1に記載の液晶表示素子の製造方法。 Wherein forming the color filter so as to be positioned on the inner surface of the second electrode substrate in the sealant, a liquid crystal display device according to claim 1 to place a mask on the second electrode substrate side Production method.
  4. 【請求項4】 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請求項1に記載の液晶表示素子の製造方法。 4. forming a guide on both sides of the predetermined pattern of the mask, the bonded a method of manufacturing a liquid crystal display device according to claim 1 for adhering said guide to said first and second electrode substrates.
  5. 【請求項5】 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請求項1に記載の液晶表示素子の製造方法。 Method of manufacturing a liquid crystal display device according to claim 1, wherein aligning the bonded together first and second electrode substrate and the mask was.
  6. 【請求項6】 マスクのパターンの幅が3mm以下である請求項5に記載の液晶表示素子の製造方法。 6. The method for manufacturing a liquid crystal display device according to claim 5 width of the pattern of the mask is less than 3mm.
  7. 【請求項7】 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液晶表示素子の製造方法。 7. A formed by sandwiching a spacer for gap control between a pair of electrode substrates which Surrounded by the sealant liquid crystal panel, filled with liquid through the inlet, the Note after the liquid crystal filling the cold-setting resin is applied to the inlet, further said to cover the cold-setting resin ultraviolet curable resin was applied and irradiated with ultraviolet rays to the inlet of the liquid crystal display device for curing the ultraviolet curable resin Production method.
JP21174395A 1995-08-21 1995-08-21 Production of liquid crystal display element Pending JPH0961829A (en)

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