JPH04107523A - Production of liquid crystal panel - Google Patents
Production of liquid crystal panelInfo
- Publication number
- JPH04107523A JPH04107523A JP22690190A JP22690190A JPH04107523A JP H04107523 A JPH04107523 A JP H04107523A JP 22690190 A JP22690190 A JP 22690190A JP 22690190 A JP22690190 A JP 22690190A JP H04107523 A JPH04107523 A JP H04107523A
- Authority
- JP
- Japan
- Prior art keywords
- glass substrate
- liquid crystal
- glass substrates
- sealing material
- glass
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 239000011521 glass Substances 0.000 claims abstract description 93
- 239000000758 substrate Substances 0.000 claims abstract description 93
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 230000001678 irradiating effect Effects 0.000 claims abstract description 9
- 239000003566 sealing material Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 239000000565 sealant Substances 0.000 description 10
- 238000007789 sealing Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
〔概 要〕
液晶パネルの製造方法に関し
液晶を密封するための２枚のガラス基板を接着させる際
に、シール材の粘度とガラス基板との接着力を充分にし
て、液晶がガラス基板上を広がってシール材を突き抜け
るのを防止することを目的とし
液晶を密封するだめの２枚のガラス基板を準備する工程
と、各々のガラス基板の表面に配向膜を形成する工程と
、一方のガラス基板上に、紫外線硬化樹脂を用いてシー
ル材を形成する工程と、シール材に少量の紫外線を照射
して、シール材の粘度を高める工程と、一方のガラス基
板上に液晶を滴下する工程と、一方のガラス基板と他方
のガラス基板とを貼り合わせる工程と、シール材に紫外
線を照射して硬化させ、２枚のガラス基板を接着させる
工程とを含むように構成する。[Detailed Description of the Invention] [Summary] Regarding a method for manufacturing a liquid crystal panel, when bonding two glass substrates for sealing a liquid crystal, the viscosity of the sealing material and the adhesive force with the glass substrates are made sufficient, A process of preparing two glass substrates for sealing the liquid crystal in order to prevent the liquid crystal from spreading on the glass substrate and penetrating the sealing material, and a process of forming an alignment film on the surface of each glass substrate. A process of forming a sealant using an ultraviolet curable resin on one glass substrate, a process of increasing the viscosity of the sealant by irradiating the sealant with a small amount of ultraviolet rays, and a process of forming a liquid crystal on one glass substrate. The method includes a step of dropping one glass substrate and another glass substrate, a step of irradiating the sealing material with ultraviolet rays to cure it, and bonding the two glass substrates together.
本発明は、液晶パ矛ルの製造方法に関する。 The present invention relates to a method for manufacturing a liquid crystal panel.
液晶パネルの製造方法の１つに、２枚のガラス基板を準
備し、一方のガラス基板上に液晶を滴下した後、他方の
ガラス基板と貼り合わせる方法がある。本発明は、この
タイプの液晶パネルの製造方法を対象とする。One method for manufacturing a liquid crystal panel is to prepare two glass substrates, drop liquid crystal onto one glass substrate, and then bond the liquid crystal to the other glass substrate. The present invention is directed to a method of manufacturing this type of liquid crystal panel.
［従来の技術］ 第２図は、従来例を示す図である。[Conventional technology] FIG. 2 is a diagram showing a conventional example.
以下、従来の液晶パネルの製造方法を、同図を用いて工
程順に説明する。Hereinafter, a conventional method for manufacturing a liquid crystal panel will be explained in order of steps using the same drawing.
〈工程１．第２図（ａ）〉
透明電極を形成した２枚のガラス基板、すなわち第１ガ
ラス基板２１および第２ガラス基板２４を準備する。<Step 1. FIG. 2(a)> Two glass substrates on which transparent electrodes are formed, ie, a first glass substrate 21 and a second glass substrate 24, are prepared.
〈工程２．第２図（ａ）〉
第１ガラス基板２１および第２ガラス基板２４の液晶と
接する面上に配向膜２２を形成する。<Step 2. FIG. 2(a)> An alignment film 22 is formed on the surfaces of the first glass substrate 21 and the second glass substrate 24 that are in contact with the liquid crystal.
〈工程３．第２図（ａ）〉
第１ガラス基板２１上に、紫外線硬化樹脂を塗布してシ
ール材２３を形成する。<Step 3. FIG. 2(a)> On the first glass substrate 21, a sealing material 23 is formed by applying an ultraviolet curing resin.
〈工程４．第２図（ａ）〉 第２ガラス基板２４上には、スペーサ２５を散布する。<Step 4. Figure 2 (a)〉 Spacers 25 are scattered on the second glass substrate 24.
く工程５ 第２回（ａ）〉
第１ガラス基板２１の中央に、必要量の液晶２６を滴下
する。Step 5 2nd (a)> A required amount of liquid crystal 26 is dropped onto the center of the first glass substrate 21.
〈工程６．第２図（ａ）、 （ｂ）＞第１ガラス基板
２１と第２ガラス基板２４との目合わせを行った後１両
者を貼り合わせる。<Step 6. FIGS. 2(a) and 2(b)>After the first glass substrate 21 and the second glass substrate 24 are aligned, they are bonded together.
貼り合わせたガラス基板２１．２４を真空バック２７中
に封入することにより圧着する。The bonded glass substrates 21 and 24 are sealed in a vacuum bag 27 and bonded under pressure.
〈工程７．第２図（ｂ）〉
シール材２３に紫外線を照射して、シール材２３を硬化
させる。この結果、第１ガラス基板２工と第２ガラス基
板２４とが接着する。<Step 7. FIG. 2(b)> The sealing material 23 is irradiated with ultraviolet rays to harden it. As a result, the first glass substrate 2 and the second glass substrate 24 are bonded together.
第１ガラス基板２１上にシール材２３を形成し。 A sealing material 23 is formed on the first glass substrate 21.
液晶２６を滴下した後、第２ガラス基板２４と貼り合わ
せる際に、液晶２６が第１ガラス基板２Ｉ上を拡がって
ゆき、シール材２３に到達する。このとき、従来の方法
では１時として、液晶２６がシール材２３を突き抜ける
現象が発生する。すると、その部分のシール材２３と第
１ガラス基板２１および第２ガラス基板２４との接着力
が不充分となる。After dropping the liquid crystal 26, when bonding it to the second glass substrate 24, the liquid crystal 26 spreads over the first glass substrate 2I and reaches the sealing material 23. At this time, in the conventional method, a phenomenon occurs in which the liquid crystal 26 penetrates the sealing material 23 at some point. Then, the adhesive force between the sealing material 23 and the first glass substrate 21 and the second glass substrate 24 at that portion becomes insufficient.
上述のように、従来例には、シール材とガラス基板との
間の接着力が不充分となる現象が生しるため、液晶を２
枚のガラス基板間に保持することができなくなる。とい
う問題があった。As mentioned above, in the conventional example, the adhesive force between the sealant and the glass substrate is insufficient, so the liquid crystal is
It becomes impossible to hold the glass substrates between the glass substrates. There was a problem.
本発明は、この問題点を解決して、液晶を密封するため
の２枚のガラス基板を接着させる際に。The present invention solves this problem when bonding two glass substrates for sealing liquid crystal.
シール材の粘度とガラス基板との接着力を充分にして、
液晶がガラス基板上を広がってシール材を突き抜けるの
を防止した。液晶パネルの製造方法を提供することを目
的とする。Ensure that the viscosity of the sealant and the adhesion to the glass substrate are sufficient.
This prevents the liquid crystal from spreading on the glass substrate and penetrating the sealant. The purpose of this invention is to provide a method for manufacturing a liquid crystal panel.
上記の目的を達成するために１本発明に係る液晶パネル
の製造方法は、液晶を密封するための２枚のガラス基板
を準備する工程と、各々のガラス基板の表面に配向膜を
形成する工程と、一方のガラス基板上に、紫外線硬化樹
脂を用いてシール材を形成する工程と、シール材に少量
の紫外線を照射して、シール材の粘度を高める工程と
一方のガラス基板上に液晶を滴下する工程と、一方のガ
ラス基板と他方のガラス基板とを貼り合わせる工程と、
シール材に紫外線を照射して硬化させ２２枚のガラス基
板を接着させる工程とを含むように構成する。In order to achieve the above object, the method for manufacturing a liquid crystal panel according to the present invention includes a step of preparing two glass substrates for sealing liquid crystal, and a step of forming an alignment film on the surface of each glass substrate. A step of forming a sealant on one glass substrate using an ultraviolet curing resin, and a step of increasing the viscosity of the sealant by irradiating the sealant with a small amount of ultraviolet light.
A step of dropping liquid crystal onto one glass substrate, a step of bonding one glass substrate and another glass substrate,
The method is configured to include a step of irradiating the sealing material with ultraviolet rays to cure it and bonding the 22 glass substrates.
０作 用〕
本発明では、２枚のガラス基板を貼り合わせる前に、一
方のガラス基板上に形成したシール材に予め少量の紫外
線を照射しているので、シール材の粘度が高まると共に
、ガラス基板界面との接着力が充分になる。0 effect] In the present invention, before bonding two glass substrates together, a small amount of ultraviolet rays are irradiated to the sealing material formed on one of the glass substrates, so that the viscosity of the sealing material increases and the glass Adhesion to the substrate interface becomes sufficient.
この結果、２枚のガラス基板を貼り合わせる際に、液晶
が一方のガラス基板上を拡がってゆき。As a result, when two glass substrates are bonded together, the liquid crystal spreads over one glass substrate.
ノール材に到達しても 液晶がシール材を突き抜 けることはない。Even if you reach the knoll material The liquid crystal penetrates the sealant There is no chance of it happening.
したがって１本発明によれば、液晶を２枚のガラス基板
間に確実に保持することができる。Therefore, according to the present invention, liquid crystal can be reliably held between two glass substrates.
第１図は５本発明の一実施例の各工程を示す図である。 FIG. 1 is a diagram showing each step of an embodiment of the present invention.
以下、工程順に説明する。The steps will be explained below in order.
〈工程１．第１図（ａ）〉
透明電極を形成した２枚のガラス基板、すなわち第１ガ
ラス基板１１および第２ガラス基板１５（図示せず）を
準備する。<Step 1. FIG. 1(a)> Two glass substrates on which transparent electrodes are formed, that is, a first glass substrate 11 and a second glass substrate 15 (not shown) are prepared.
〈工程２．第１図（ａ）〉
第１ガラス基板１１および第２ガラス基板１５（図示せ
ず）の液晶と接する面上に配向膜１２を形成する。<Step 2. FIG. 1(a)> An alignment film 12 is formed on the surfaces of the first glass substrate 11 and the second glass substrate 15 (not shown) that are in contact with the liquid crystal.
配向膜１２は１例えば、ガラス基板１１．１５の液晶と
接する面上にポリイミドを塗布して焼成した後、ラビン
グを施すことによって形成する。The alignment film 12 is formed, for example, by coating polyimide on the surface of the glass substrate 11.15 in contact with the liquid crystal, baking it, and then rubbing it.
〈工程３．第１図（ａ）〉
第１ガラス基板１１上に、紫外線硬化樹脂を塗布してシ
ール材１３を形成する。<Step 3. FIG. 1(a)> On the first glass substrate 11, a sealing material 13 is formed by applying an ultraviolet curing resin.
く工程４．第１図（ｂ）〉
ガラス基板１１上に形成したシール材１３に紫外線１４
を照射する。このとき、紫外線１４の照射量は、シール
材１３の粘度が高まる程度に止め。Step 4. FIG. 1(b)〉 Ultraviolet rays 14 are applied to the sealing material 13 formed on the glass substrate 11.
irradiate. At this time, the amount of irradiation of the ultraviolet rays 14 is limited to such an extent that the viscosity of the sealing material 13 increases.
シール材１３が完全に硬化しない程度の量に設定する。The amount is set to such an extent that the sealing material 13 does not completely harden.
また、紫外線１４を照射する際に、配向膜１２の表面を
紫外線をカットする材質のもので覆っておくことにより
、紫外線１４照射時に配向膜１２を紫外線１４による損
傷から守ることができる。Furthermore, by covering the surface of the alignment film 12 with a material that blocks ultraviolet rays when irradiating the ultraviolet rays 14, the alignment film 12 can be protected from damage caused by the ultraviolet rays 14.
〈工程５．第１図（Ｃ）〉 第２ガラス基板１５上に、スペーサ１６を散布する。<Step 5. Figure 1 (C)〉 Spacers 16 are scattered on the second glass substrate 15.
〈工程６．第１図（Ｃ）〉
第１ガラス基板１１の中央に、必要量の液晶１７を滴下
する。<Step 6. FIG. 1(C)> A required amount of liquid crystal 17 is dropped onto the center of the first glass substrate 11.
〈工程７．第１図（Ｃ）、 （ｄ）＞第１ガラス基板
１１と第２ガラス基板１５との目合わ廿を行った後１両
者を貼り合わせる。<Step 7. FIGS. 1C and 1D>After the first glass substrate 11 and the second glass substrate 15 are aligned, they are bonded together.
貼り合わせたガラス基板１１．１５を真空パンク１８中
に封入することにより圧着する。The bonded glass substrates 11 and 15 are sealed in a vacuum puncture 18 and bonded by pressure.
〈工程８．第１図（ｄ）〉
シール材１３に紫外１１９を照射して、シール材１３を
硬化させる。この結果、第１ガラス基板ＩＩと第２ガラ
ス基板１５とが接着する。<Step 8. FIG. 1(d)> The sealing material 13 is irradiated with ultraviolet light 119 to harden the sealing material 13. As a result, the first glass substrate II and the second glass substrate 15 are bonded together.
紫外線１９を照射する際に、配向膜１２の表面を紫外線
１９をカントする材質のもので覆っておくことにより、
紫外線１９照射時に配向膜１２を紫外線１９による損傷
から守ることができる。By covering the surface of the alignment film 12 with a material that cant the ultraviolet rays 19 when irradiating the ultraviolet rays 19,
The alignment film 12 can be protected from damage caused by the ultraviolet rays 19 during irradiation with the ultraviolet rays 19.
以上の各工程を経て、液晶パネルが完成する。After each of the above steps, a liquid crystal panel is completed.
上述の実施例では、シール材を一方のガラス基板上にの
み形成したが、他方のガラス基板上にもシール材を形成
することにより、封止をより完全にすることが可能にな
る。In the embodiments described above, the sealing material was formed only on one glass substrate, but by forming the sealing material on the other glass substrate as well, it is possible to achieve more complete sealing.
また、上述の実施例では、シール材を紫外線硬化樹脂を
用いて形成したが、シール材を熱硬化型樹脂を用いて形
成することもできる。その場合には、紫外線の代わりに
赤外線などの加熱手段を用いる。Further, in the above-described embodiments, the sealing material was formed using an ultraviolet curing resin, but the sealing material may also be formed using a thermosetting resin. In that case, heating means such as infrared rays are used instead of ultraviolet rays.
〔発明の効果］
本発明によれば、液晶を密封するための２枚のガラス基
板を接着させる際に、シール材の粘度とガラス基板との
接着力が充分になるので、液晶がガラス基板上を広がっ
てシール材を突き抜ける現象が発生しない。したがって
、液晶を２枚のガラス基板間に確実に保持することが可
能になる。[Effects of the Invention] According to the present invention, when bonding two glass substrates for sealing a liquid crystal, the viscosity of the sealing material and the adhesive force between the glass substrates are sufficient, so that the liquid crystal is bonded to the glass substrate. The phenomenon of spreading and penetrating the seal material does not occur. Therefore, it becomes possible to securely hold the liquid crystal between the two glass substrates.
１５：第２ガラス基板 １６：スペーサ １７：液晶 １８：真空バック １９：紫外線15: Second glass substrate 16: Spacer 17: Liquid crystal 18: Vacuum bag 19: Ultraviolet light
Claims (4)
１５）を準備する工程と、 各々のガラス基板（１１、１５）の表面に配向膜（１２
）を形成する工程と、 一方のガラス基板（１１）上に、紫外線硬化樹脂を用い
てシール材（１３）を形成する工程と、シール材（１３
）に少量の紫外線（１４）を照射して、シール材（１３
）の粘度を高める工程と、 一方のガラス基板（１１）上に液晶（１７）を滴下する
工程と、 一方のガラス基板（１１）と他方のガラス基板（１５）
とを貼り合わせる工程と、 シール材（１３）に紫外線（１９）を照射して硬化させ
、２枚のガラス基板（１１、１５）を接着させる工程と
を含むことを特徴とする液晶パネルの製造方法。(1) Two glass substrates (11,
15) and preparing an alignment film (12) on the surface of each glass substrate (11, 15).
), a step of forming a sealing material (13) using an ultraviolet curing resin on one glass substrate (11), and a step of forming a sealing material (13) on one glass substrate (11) using an ultraviolet curing resin;
) is irradiated with a small amount of ultraviolet light (14), and the sealing material (13
), a step of dropping liquid crystal (17) onto one glass substrate (11), and one glass substrate (11) and the other glass substrate (15).
and a step of curing the sealing material (13) by irradiating it with ultraviolet rays (19) and bonding the two glass substrates (11, 15) together. Method.
する際に、配向膜（１２）の部分に紫外線（１４、１９
）を照射しない ことを特徴とする請求項１記載の液晶パネルの製造方法
。(2) When irradiating the sealing material (13) with ultraviolet rays (14, 19), the alignment film (12) is exposed to ultraviolet rays (14, 19).
2. The method for manufacturing a liquid crystal panel according to claim 1, wherein the method does not irradiate the liquid crystal panel.
際に、ガラス基板（１１、１５）を加熱することを特徴
とする請求項１記載の液晶パネルの製造方法。(3) The method for manufacturing a liquid crystal panel according to claim 1, characterized in that the glass substrates (11, 15) are heated when the two glass substrates (11, 15) are bonded together.
基板（１５）上にも、紫外線硬化樹脂を用いてシール材
（１３）を形成する ことを特徴とする請求項１記載の液晶パネルの製造方法
。(4) The liquid crystal panel according to claim 1, characterized in that a sealing material (13) is formed using an ultraviolet curing resin on one glass substrate (11) and also on the other glass substrate (15). Production method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2226901A JP2965645B2 (en) | 1990-08-29 | 1990-08-29 | Liquid crystal panel manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2226901A JP2965645B2 (en) | 1990-08-29 | 1990-08-29 | Liquid crystal panel manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04107523A true JPH04107523A (en) | 1992-04-09 |
| JP2965645B2 JP2965645B2 (en) | 1999-10-18 |
Family
ID=16852372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2226901A Expired - Lifetime JP2965645B2 (en) | 1990-08-29 | 1990-08-29 | Liquid crystal panel manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2965645B2 (en) |
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|---|---|---|---|---|
| US7006193B2 (en) | 1999-05-10 | 2006-02-28 | Au Optronics Corporation | Method of sealing two substrates with a non-epoxy or epoxy-acrylate sealant using laser radiation |
| JP2008293000A (en) * | 2007-04-26 | 2008-12-04 | Semiconductor Energy Lab Co Ltd | Liquid crystal display device and method for manufacturing liquid crystal display device |
| WO2013057958A1 (en) * | 2011-10-21 | 2013-04-25 | 日本化薬株式会社 | Method for producing optical member and use of ultraviolet ray cured resin composition for same |
| CN103412443A (en) * | 2013-07-22 | 2013-11-27 | 北京京东方光电科技有限公司 | Box pairing method for display panel |
| JP2019522239A (en) * | 2016-07-08 | 2019-08-08 | ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェンＨｅｎｋｅｌ ＡＧ ＆ Ｃｏ． ＫＧａＡ | Method for producing liquid crystal display device and curable resin composition used therefor |
-
1990
- 1990-08-29 JP JP2226901A patent/JP2965645B2/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7274426B2 (en) | 1999-05-10 | 2007-09-25 | Au Optronics Corporation | Method of sealing two substrates with a non-epoxy or epoxy-acrylate sealant using laser radiation |
| US7006193B2 (en) | 1999-05-10 | 2006-02-28 | Au Optronics Corporation | Method of sealing two substrates with a non-epoxy or epoxy-acrylate sealant using laser radiation |
| US8704971B2 (en) | 2007-04-26 | 2014-04-22 | Semiconductor Energy Laboratory Co., Ltd. | Liquid crystal display device and manufacturing method thereof |
| JP2008293000A (en) * | 2007-04-26 | 2008-12-04 | Semiconductor Energy Lab Co Ltd | Liquid crystal display device and method for manufacturing liquid crystal display device |
| TWI470325B (en) * | 2007-04-26 | 2015-01-21 | Semiconductor Energy Lab | Liquid crystal display device and manufacturing method thereof |
| WO2013057958A1 (en) * | 2011-10-21 | 2013-04-25 | 日本化薬株式会社 | Method for producing optical member and use of ultraviolet ray cured resin composition for same |
| JP5411394B2 (en) * | 2011-10-21 | 2014-02-12 | 日本化薬株式会社 | Method for producing optical member and use of ultraviolet curable resin composition therefor |
| JP2014076661A (en) * | 2011-10-21 | 2014-05-01 | Nippon Kayaku Co Ltd | Production method of optical member and use of ultraviolet ray-curable resin composition for the method |
| JP2015157940A (en) * | 2011-10-21 | 2015-09-03 | 日本化薬株式会社 | Method for manufacturing optical member and use of ultraviolet-curable resin composition for the method |
| JP2015206044A (en) * | 2011-10-21 | 2015-11-19 | 日本化薬株式会社 | Ultraviolet-curable resin composition |
| JP2015221894A (en) * | 2011-10-21 | 2015-12-10 | 日本化薬株式会社 | Method for producing optical member and use of ultraviolet-curable resin composition for the same |
| US10179445B2 (en) | 2011-10-21 | 2019-01-15 | Nippon Kayaku Kabushiki Kaisha | Method for producing optical member and use of ultraviolet ray cured resin composition for same |
| CN103412443A (en) * | 2013-07-22 | 2013-11-27 | 北京京东方光电科技有限公司 | Box pairing method for display panel |
| JP2019522239A (en) * | 2016-07-08 | 2019-08-08 | ヘンケル・アクチェンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト・アウフ・アクチェンＨｅｎｋｅｌ ＡＧ ＆ Ｃｏ． ＫＧａＡ | Method for producing liquid crystal display device and curable resin composition used therefor |
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|---|---|
| JP2965645B2 (en) | 1999-10-18 |
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