JPH055892A - Liquid crystal panel and production thereof - Google Patents
Liquid crystal panel and production thereofInfo
- Publication number
- JPH055892A JPH055892A JP15713591A JP15713591A JPH055892A JP H055892 A JPH055892 A JP H055892A JP 15713591 A JP15713591 A JP 15713591A JP 15713591 A JP15713591 A JP 15713591A JP H055892 A JPH055892 A JP H055892A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- hole
- substrates
- display panel
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1341—Filling or closing of cells
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液晶表示パネルに関
し、特に液晶表示パネルへの液晶注入を容易にできる液
晶表示パネルおよびその製法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display panel, and more particularly to a liquid crystal display panel which can easily inject liquid crystal into the liquid crystal display panel and a manufacturing method thereof.
【０００２】[0002]
【従来の技術】液晶表示パネルは、一般的に図５（ａ）
（ｂ）に示す如く、二枚のガラス基板（３１）（３２）
上に形成された透明電極（図示しない）を対向するよう
に、基板（３１）（３２）の周端辺に設けられた接着シ
ール材（３３）を介して所定の間隔離間して固着され
る。シール材（３３）には離間部分に液晶を注入するた
めの液晶注入用孔（３４）が設けられており、かかる注
入孔（３４）により液晶が注入される。注入後その注入
孔（３４）は接着樹脂（３５）により封止され所望表示
を実現できる表示パネルが完成される。2. Description of the Related Art A liquid crystal display panel is generally shown in FIG.
As shown in (b), two glass substrates (31) (32)
The transparent electrodes (not shown) formed above are fixed so as to face each other with an adhesive seal material (33) provided on the peripheral edges of the substrates (31) and (32) at a predetermined interval. .. The sealing material (33) is provided with a liquid crystal injection hole (34) for injecting liquid crystal into the separated portion, and the liquid crystal is injected through the injection hole (34). After the injection, the injection hole (34) is sealed with an adhesive resin (35) to complete a display panel capable of realizing a desired display.
【０００３】上述した液晶表示パネルに液晶を注入する
場合、必らず液晶を注入するための注入孔（３４）が設
けられている。即ち、液晶は、いわゆる真空注入方法に
より注入されるために上記注入孔（３４）を必要とす
る。When injecting liquid crystal into the above-mentioned liquid crystal display panel, an injecting hole (34) for injecting the liquid crystal is necessarily provided. That is, the liquid crystal needs the injection hole (34) to be injected by the so-called vacuum injection method.
【０００４】[0004]
【発明が解決しようとする課題】上述した従来構造の液
晶表示パネルでは接着シール材により形成された注入孔
により液晶を注入するために、液晶層中に気泡が発生す
るのを防止するために上述したように真空装置を用いて
行わなければならなかった。そのため第１に、液晶注入
時間がかかる。第２に真空装置内の治具に多数のパネル
を取付けなければならない等作業が悪く生産効率が著し
く低下するという問題がある。かかる問題は特に大型表
示パネルにおいて重要な問題である。In the liquid crystal display panel having the above-mentioned conventional structure, since the liquid crystal is injected through the injection hole formed by the adhesive sealing material, it is necessary to prevent the generation of bubbles in the liquid crystal layer. Had to be done using a vacuum system as described above. Therefore, firstly, it takes time to inject the liquid crystal. Secondly, there is a problem in that the work is bad and the production efficiency is remarkably reduced because a large number of panels have to be attached to the jig in the vacuum device. Such a problem is an important problem especially in a large display panel.
【０００５】[0005]
【課題を解決するための手段】本発明は、上述した課題
に鑑みて為されたものであり、一対の透明基板のいずれ
か一方の基板周端部に環状に形成した接着シール材を設
け、いずれか一方の基板の非表示領域に基板間に充填さ
れる液晶を逃がす貫通孔を設け、その貫通孔を封止樹脂
で封止して解決する。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an adhesive sealing material formed in an annular shape is provided at a peripheral edge of one of a pair of transparent substrates. A problem is solved by providing a through hole through which a liquid crystal filled between the substrates escapes in a non-display area of one of the substrates and sealing the through hole with a sealing resin.
【０００６】[0006]
【作用】このように本発明に依れば、基板の周端部に環
状の接着シール材を設け、いずれか一方の基板の非表示
領域に液晶を逃がす貫通孔を設け、その貫通孔を封止樹
脂で封止した構造とすることにより、従来の如き、真空
装置を用いることなく液晶層を基板間に設けることがで
きる。更にその際本発明では上記した如く、いずれか一
方の基板に貫通孔が設けられいるために液晶層中に気泡
が生じることもない。As described above, according to the present invention, an annular adhesive sealing material is provided at the peripheral edge of the substrate, a through hole for letting out liquid crystal is provided in the non-display area of one of the substrates, and the through hole is sealed. With the structure in which the resin is sealed, the liquid crystal layer can be provided between the substrates without using a vacuum device as in the conventional case. Further, at this time, in the present invention, as described above, since the through hole is provided in either one of the substrates, bubbles are not generated in the liquid crystal layer.
【０００７】[0007]
【実施例】以下に図１乃至図４に示した実施例に基づい
て本発明の液晶表示パネルを説明する。図１（ａ）は液
晶表示パネルの平面図であり、図１（ｂ）は図１（ａ）
のＡ−Ａ断面図である。液晶表示パネル（１０）は二枚
のガラス基板（１１）（１２）とその基板（１１）（１
２）を封止する環状の接着シール材（１４）と基板間に
設けられた液晶層（１５）といずれか一方の基板（１
２）に設けられた液晶を逃す貫通孔（１３）と貫通孔
（１３）を封止する封止樹脂（１６）とから構成され
る。EXAMPLES The liquid crystal display panel of the present invention will be described below based on the examples shown in FIGS. FIG. 1A is a plan view of the liquid crystal display panel, and FIG. 1B is FIG.
FIG. The liquid crystal display panel (10) includes two glass substrates (11) (12) and the substrates (11) (1).
An annular adhesive sealing material (14) for sealing 2) and a liquid crystal layer (15) provided between the substrates, and either one of the substrates (1)
It is composed of a through hole (13) provided in 2) for letting out the liquid crystal and a sealing resin (16) for sealing the through hole (13).
【０００８】次に本発明の液晶表示パネルの製造方法を
説明する。先ず、図２に示す如く所望表示を行うための
透明電極（図示されない）が複数ブロック形成されたガ
ラス基板（１１）を用意し、ブロック毎に形成された透
明電極を完全に囲むように厚さ約１５〜２０μの接着シ
ール材（１４）を印刷あるいはディスペンサーにより形
成する。接着シール材（１４）は光硬化性のアクリル系
ＵＶ樹脂あるいは熱硬化性のエポキシ樹脂を用いること
ができるが接着シール材（１４）の硬化前に液晶が充填
されるために液晶に接着シール材（１４）のモノマーが
溶けて液晶の特性が変化するのを防止するために急速に
硬化するアクリル系ＵＶ樹脂を用いることが好ましい。Next, a method of manufacturing the liquid crystal display panel of the present invention will be described. First, as shown in FIG. 2, a glass substrate (11) having a plurality of blocks of transparent electrodes (not shown) for performing desired display is prepared, and a thickness is formed so as to completely surround the transparent electrodes formed for each block. An adhesive sealing material (14) of about 15 to 20 μm is formed by printing or a dispenser. The adhesive seal material (14) may be a photo-curable acrylic UV resin or a thermosetting epoxy resin. However, since the liquid crystal is filled before the adhesive seal material (14) is cured, the liquid crystal is adhered to the adhesive seal material. It is preferable to use an acrylic UV resin that cures rapidly in order to prevent the monomer (14) from melting and changing the characteristics of the liquid crystal.
【０００９】次に図３に示す如く、接着シール材（１
４）で囲まれた表示領域内に気泡の発生を防止するため
に所定量より若干多めの液晶（１５）を略表示領域（１
７）の中央部の１点あるいは２点に滴下する。かかる液
晶中にはギャプコントロールを行うための約４〜１０μ
粒径のスペーサが混入され、液晶滴下と同時にスペーサ
の散布が行える。Next, as shown in FIG. 3, an adhesive seal material (1
In order to prevent bubbles from being generated in the display area surrounded by 4), a liquid crystal (15) slightly larger than a predetermined amount is provided in the display area (1).
Drop onto 1 or 2 points in the center of 7). Approximately 4 ~ 10μ for gap control in such liquid crystal
Spacers having a particle size are mixed, and the spacers can be scattered at the same time as the liquid crystal is dropped.
【００１０】次に同図に示す如く、対向基板となる他の
ガラス基板（１２）をガラス基板（１１）上に載置して
夫々の基板（１１）（１２）を貼合せる。ガラス基板
（１２）は図示されないが吸着装置のアーム等により真
空吸着ガラス基板（１１）上に配置して、ガラス基板
（１２）と貼合わす。このときガラス基板（１２）には
所定の圧力が加えられる。即ち、表示パネルの初期設定
ギャプ、例えば約４．８μ厚となるまで圧力が加えられ
る。さらにこの際、シール材（１４）厚はギャプよりも
厚く形成され且つガラス基板（１２）にはその非表示領
域に液晶を逃す貫通孔（１３）が形成されているために
基板（１１）（１２）を貼合わすときにあらかじめ多め
に滴下された不要な液晶が貫通孔（１３）外部に押し出
され液晶層内に気泡が生じることはない。Next, as shown in the figure, another glass substrate (12) to be an opposite substrate is placed on the glass substrate (11) and the respective substrates (11) and (12) are bonded together. Although not shown, the glass substrate (12) is placed on the vacuum adsorption glass substrate (11) by an arm of an adsorption device or the like and is bonded to the glass substrate (12). At this time, a predetermined pressure is applied to the glass substrate (12). That is, the pressure is applied until the display panel has a default gap, for example, a thickness of about 4.8 μm. Further, at this time, the thickness of the sealing material (14) is made thicker than that of the gap, and the glass substrate (12) is provided with the through hole (13) for letting out the liquid crystal in the non-display area, so that the substrate (11) When attaching 12), unnecessary liquid crystal dropped a lot in advance will not be pushed out of the through hole (13) and bubbles will not be generated in the liquid crystal layer.
【００１１】ところで、ガラス基板（１２）に形成され
る貫通孔（１３）は上記したようにガラス基板上の非表
示領域に所望径のダイヤモンドドリルあるいは超音波サ
ンドブラスト等へ手段によって形成する。次にシール材
（１４）を硬化させた後に基板（１１）（１２）にスク
ライブを入れて図４に示す如く、個別の表示パネルに分
割し図１に示す如く、基板（１２）の貫通孔（１３）に
アクリル系ＵＶ樹脂等の封止樹脂を塗布して貫通孔（１
３）を封止して表示パネルを形成する。By the way, the through hole (13) formed in the glass substrate (12) is formed in a non-display area on the glass substrate by means of a diamond drill or ultrasonic sandblast having a desired diameter as described above. Next, after the sealing material (14) is cured, the substrates (11) and (12) are scribed and divided into individual display panels as shown in FIG. 4, and the through holes of the substrate (12) are provided as shown in FIG. A sealing resin such as an acrylic UV resin is applied to (13) and the through hole (1
3) is sealed to form a display panel.
【００１２】[0012]
【発明の効果】以上に詳述した如く、本発明に依れば、
接着シール材を環状に形成し、いづれか一方の基板に貫
通孔を設けることにより、従来の如き真空状態で液晶注
入を行うことなく大気中にて液晶を充填することができ
る。また、大気中で液晶を充填したとしてもガラス基板
に設けた貫通孔から不要な液晶が外部押出され液晶層中
に気泡が生じることはない。As described above in detail, according to the present invention,
By forming the adhesive sealing material in an annular shape and providing a through hole in either one of the substrates, it is possible to fill the liquid crystal in the atmosphere without injecting the liquid crystal in the conventional vacuum state. Further, even if the liquid crystal is filled in the atmosphere, unnecessary liquid crystal is not extruded externally from the through hole provided in the glass substrate and bubbles are not generated in the liquid crystal layer.
【００１３】さらに、本発明では従来の如く、真空装置
を用いることなく液晶を充填することができるため、特
に大型の表示パネルへの液晶注入時間を極めて短縮でき
るため生産効率を向上することができる。Further, according to the present invention, since it is possible to fill the liquid crystal without using a vacuum device as in the prior art, the time for injecting the liquid crystal into a large-sized display panel can be extremely shortened, so that the production efficiency can be improved. ..
【図１】本発明を説明する平面図及び断面図である。1A and 1B are a plan view and a cross-sectional view illustrating the present invention.
【図２】本発明の製造工程を示す平面図である。FIG. 2 is a plan view showing a manufacturing process of the present invention.
【図３】本発明の製造工程を示す断面図である。FIG. 3 is a cross-sectional view showing the manufacturing process of the present invention.
【図４】本発明の製造工程を示す断面図である。FIG. 4 is a cross-sectional view showing the manufacturing process of the present invention.
【図５】従来例を示す平面図及び断面図である。5A and 5B are a plan view and a cross-sectional view showing a conventional example.
（１０） 液晶表示パネル （１１）（１２） ガラス基板 （１３） 貫通孔 （１４） シール材 （１６） 樹脂封止部材 (10) Liquid crystal display panel (11) (12) Glass substrate (13) Through hole (14) Seal material (16) Resin sealing member
Claims (1)
対向配置され前記基板間に液晶層を有した液晶表示パネ
ルにおいて、いずれか一方の基板周端部に環状に形成し
た接着シール材を設け、いずれか前記一方の基板の非表
示領域に前記液晶を逃がす貫通孔を設け、前記貫通孔が
封止樹脂で封止されたことを特徴とする液晶表示パネ
ル。 【請求項２】 表示電極が形成された一方の透明基板上
に前記表示電極により表示される表示領域を囲む環状の
接着シール材を形成し、前記表示領域上に液晶を滴下し
た後、非表示領域に貫通孔を有した対向する他方の透明
基板を前記一方の透明基板上に配置し所定のギャップに
なるまで加圧せしめ、前記他方の透明基板に設けた前記
貫通孔により前記液晶を押出した後、前記接着シール材
を硬化させ前記貫通孔を封止樹脂で封止することを特徴
とする液晶表示パネルの製造方法。 【請求項３】 滴下する前記液晶に所定粒径のスペーサ
を混入したことを特徴とする請求項２記載の液晶表示パ
ネルの製造方法。Claim: What is claimed is: 1. A liquid crystal display panel comprising a pair of transparent substrates having transparent electrodes formed opposite to each other and having a liquid crystal layer between the substrates. A liquid crystal display panel, wherein the formed adhesive sealing material is provided, a through hole for letting out the liquid crystal is provided in a non-display area of any one of the substrates, and the through hole is sealed with a sealing resin. 2. An annular adhesive sealing material surrounding a display area displayed by the display electrode is formed on one transparent substrate on which the display electrode is formed, and liquid crystal is dropped on the display area, and then non-display is performed. The other opposing transparent substrate having a through hole in the region is arranged on the one transparent substrate and pressed until a predetermined gap is obtained, and the liquid crystal is extruded through the through hole provided in the other transparent substrate. After that, the method for manufacturing a liquid crystal display panel is characterized in that the adhesive sealing material is cured and the through hole is sealed with a sealing resin. 3. The method of manufacturing a liquid crystal display panel according to claim 2, wherein spacers having a predetermined particle diameter are mixed in the dropped liquid crystal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15713591A JPH055892A (en) | 1991-06-27 | 1991-06-27 | Liquid crystal panel and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15713591A JPH055892A (en) | 1991-06-27 | 1991-06-27 | Liquid crystal panel and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH055892A true JPH055892A (en) | 1993-01-14 |
Family
ID=15642970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15713591A Pending JPH055892A (en) | 1991-06-27 | 1991-06-27 | Liquid crystal panel and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH055892A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0703485A2 (en) | 1994-09-26 | 1996-03-27 | Matsushita Electric Industrial Co., Ltd. | Liquid crystal display panel and method and device for manufacturing the same |
| US6459467B1 (en) | 1998-05-15 | 2002-10-01 | Minolta Co., Ltd. | Liquid crystal light modulating device, and a manufacturing method and a manufacturing apparatus thereof |
| US7554647B2 (en) | 2006-05-15 | 2009-06-30 | Lg Display Co., Ltd. | Liquid crystal display device and method for manufacturing the same |
| US8405814B2 (en) | 2005-09-28 | 2013-03-26 | Lg Display Co., Ltd. | Liquid crystal display device and fabricating method thereof |
| AU2009287904B2 (en) * | 2008-09-04 | 2015-02-12 | Temco Japan Co., Ltd. | Ear muff-type headset for two-way communication |
| CN108780240A (en) * | 2016-03-10 | 2018-11-09 | 富士胶片株式会社 | Plastic unit and its manufacturing method |
| CN109308848A (en) * | 2017-07-28 | 2019-02-05 | 现代摩比斯株式会社 | Curved-surface display device and its manufacturing method for vehicle |
-
1991
- 1991-06-27 JP JP15713591A patent/JPH055892A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0703485A2 (en) | 1994-09-26 | 1996-03-27 | Matsushita Electric Industrial Co., Ltd. | Liquid crystal display panel and method and device for manufacturing the same |
| US5852484A (en) * | 1994-09-26 | 1998-12-22 | Matsushita Electric Industrial Co., Ltd. | Liquid crystal display panel and method and device for manufacturing the same |
| US5854664A (en) * | 1994-09-26 | 1998-12-29 | Matsushita Electric Industrial Co., Ltd. | Liquid crystal display panel and method and device for manufacturing the same |
| US6459467B1 (en) | 1998-05-15 | 2002-10-01 | Minolta Co., Ltd. | Liquid crystal light modulating device, and a manufacturing method and a manufacturing apparatus thereof |
| US6842210B2 (en) | 1998-05-15 | 2005-01-11 | Minolta Co., Ltd. | Liquid crystal light modulating device, and a manufacturing method and a manufacturing apparatus thereof |
| US8405814B2 (en) | 2005-09-28 | 2013-03-26 | Lg Display Co., Ltd. | Liquid crystal display device and fabricating method thereof |
| US7554647B2 (en) | 2006-05-15 | 2009-06-30 | Lg Display Co., Ltd. | Liquid crystal display device and method for manufacturing the same |
| AU2009287904B2 (en) * | 2008-09-04 | 2015-02-12 | Temco Japan Co., Ltd. | Ear muff-type headset for two-way communication |
| CN108780240A (en) * | 2016-03-10 | 2018-11-09 | 富士胶片株式会社 | Plastic unit and its manufacturing method |
| CN109308848A (en) * | 2017-07-28 | 2019-02-05 | 现代摩比斯株式会社 | Curved-surface display device and its manufacturing method for vehicle |
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