JPH055893A - Liquid crystal display panel and production thereof - Google Patents
Liquid crystal display panel and production thereofInfo
- Publication number
- JPH055893A JPH055893A JP15713691A JP15713691A JPH055893A JP H055893 A JPH055893 A JP H055893A JP 15713691 A JP15713691 A JP 15713691A JP 15713691 A JP15713691 A JP 15713691A JP H055893 A JPH055893 A JP H055893A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- sealing material
- display panel
- crystal display
- adhesive
- 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、一対の透明基板を接着す
る接着シール材を基板の周端辺領域に環状に形成して、
環状に形成された接着シール材をコーナ部で断線させて
解決する。The present invention has been made in view of the above-mentioned problems, and an adhesive seal material for adhering a pair of transparent substrates is formed annularly in the peripheral edge region of the substrates,
To solve the problem, the adhesive seal material formed in an annular shape is broken at the corner portion.
【０００６】[0006]
【作用】このように本発明に依れば、基板の周端部に環
状に形成された接着シール材のコーナ部を断線させた構
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
際本発明の構造では上記した如く、シール材のコーナ部
が断線状態となっているので液晶層中に気泡が生じるこ
ともない。As described above, according to the present invention, the structure is such that the corner portion of the adhesive sealing material formed in an annular shape at the peripheral end portion of the substrate is disconnected, so that the conventional vacuum device is not used. A liquid crystal layer can be provided between the substrates. Further, at that time, in the structure of the present invention, as described above, since the corner portion of the sealing material is in a disconnected state, 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）を封止するコーナ部（１３）が断線した環状の接着
シール材（１４）と基板間に設けられた液晶層（１５）
と断線したコーナ部（１３）に封止される封止樹脂（１
６）とから構造される。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).
The liquid crystal layer (15) provided between the substrate and the annular adhesive seal material (14) in which the corner (13) for sealing 2) is broken.
The sealing resin (1
6) Structured from
【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
明電極を囲むように厚さ約１５〜２０μの接着シール材
（１４）を印刷形成する。接着シール材（１４）は図２
に示す如く、表示領域（１７）を囲み且つ、このコーナ
部（１３）が断線する様に印刷形成する。即ち、コーナ
部で各シール材（１４）が独立するように印刷形成す
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 a desired display is prepared, and a thickness of about 15 is formed so as to surround the transparent electrodes formed for each block. The adhesive sealing material (14) having a thickness of 20 μm is formed by printing. The adhesive seal material (14) is shown in FIG.
As shown in (1), the display area (17) is surrounded, and the corner portion (13) is printed so as to be disconnected. That is, printing is performed so that each sealing material (14) is independent at the corner portion. The adhesive sealant (14) is a photo-curing acrylic UV
A resin or a thermosetting epoxy resin can be used, but since the liquid crystal is filled before the adhesive sealant (14) is cured, the monomer of the adhesive sealant (14) is dissolved in the liquid crystal and the characteristics of the liquid crystal change. It is preferable to use an acrylic UV resin that cures rapidly in order to prevent this.
【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
真空吸着しガラス基板（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
定ギャプが例えば約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シール材（１４）のコーナ部（１
３）でシール材（１４）が断線しているために基板（１
１）（１２）を貼合わすときにあらかじめ多めに滴下さ
れた不要な液晶が断線されたコーナ部（１３）から押し
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) serving as a counter substrate is placed on the glass substrate (11), and the substrates (11) and (12) are bonded together. Although not shown, the glass substrate (12) is vacuum-adsorbed by an arm of an adsorption device or the like, placed on the glass substrate (11), and bonded to the glass substrate (12). At this time, a predetermined pressure is applied to the glass substrate (12). That is, pressure is applied until the initial setting gap of the display panel becomes, for example, about 4.8 μm. Further, at this time, the thickness of the seal material (14) is formed thicker than the gap, and the corner portion (1) of the seal material (14) is formed.
Since the sealing material (14) is broken in (3), the substrate (1
It is possible to prevent bubbles from being generated in the liquid crystal layer by pushing unnecessary liquid crystal dropped in advance when laminating (1) and (12) from the cut corner (13).
【００１１】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、接着
シール材（１４）が断線されているコーナ部分（１３）
にアクリル系ＵＶ樹脂等の封止樹脂（１６）を塗布して
断線部を封止して表示パネルを形成する。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 an adhesive sealing material is provided as shown in FIG. Corner part (13) where (14) is broken
Then, a sealing resin (16) such as an acrylic UV resin is applied to seal the broken portion 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、
接着シール材のコーナ部を断線させることにより、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
填したとしてもシール材のコーナ部の断線部から不要な
液晶が外部に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 breaking the corner portion of the adhesive sealing material, it is possible to fill the liquid crystal in the atmosphere without injecting the liquid crystal in a vacuum state as in the conventional case. Further, even if the liquid crystal is filled in the atmosphere, unnecessary liquid crystal is not extruded from the broken portion of the corner portion of the sealing material to the outside, 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） コーナ部 （１４） シール材 （１６） 樹脂封止部材 (10) Liquid crystal display panel (11) (12) Glass substrate (13) Corner portion (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、一方の基板周端部に環状に形成された接着
シール剤を設け、前記環状に形成された接着シール剤の
コナー部を断線させたことを特徴とする液晶表示パネ
ル。 【請求項２】 前記断線部は接着性樹脂で封止したこと
を特徴とする請求項１記載の液晶表示装置。 【請求項３】 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のコーナ部を
除く領域に接着シール材を形成し、前記接着シール材に
囲まれた表示領域上に液晶を滴下した後、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、前記接着シール材が形成さ
れないコーナ部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コーナ部を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４】 滴下する前記液晶には所定粒径のスペー
サを混入することを特徴とする請求項３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, each having a transparent electrode formed thereon, facing each other, and having a liquid crystal layer between the substrates. A liquid crystal display panel, wherein an adhesive sealant is provided, and a conical portion of the adhesive sealant formed in a ring shape is disconnected. 2. The liquid crystal display device according to claim 1, wherein the disconnection portion is sealed with an adhesive resin. 3. An adhesive sealing material is formed on a transparent substrate on which one of the display electrodes is formed, except for a corner portion of a display area displayed by the display electrode, and a display area surrounded by the adhesive sealing material. After dropping the liquid crystal on the top, place the other opposite transparent substrate on the one transparent substrate and press it until a predetermined gap is reached, and after extruding the liquid crystal from the corner where the adhesive sealing material is not formed A method for manufacturing a liquid crystal display panel, comprising curing the adhesive sealing material to seal the corner portion. 4. The method of manufacturing a liquid crystal display panel according to claim 3, wherein spacers having a predetermined particle size are mixed in the dropped liquid crystal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15713691A JPH055893A (en) | 1991-06-27 | 1991-06-27 | Liquid crystal display panel and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15713691A JPH055893A (en) | 1991-06-27 | 1991-06-27 | Liquid crystal display panel and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH055893A true JPH055893A (en) | 1993-01-14 |
Family
ID=15642992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15713691A Pending JPH055893A (en) | 1991-06-27 | 1991-06-27 | Liquid crystal display panel and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH055893A (en) |
Cited By (5)
| 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 |
| KR20020030682A (en) * | 2000-10-19 | 2002-04-25 | 안재우 | Cotton coating gloves Separation & Guide System |
| 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 |
| US8405814B2 (en) * | 2005-09-28 | 2013-03-26 | Lg Display Co., Ltd. | Liquid crystal display device and fabricating method thereof |
| CN115629499A (en) * | 2022-12-08 | 2023-01-20 | 惠科股份有限公司 | Display panel and display device |
-
1991
- 1991-06-27 JP JP15713691A patent/JPH055893A/en active Pending
Cited By (11)
| 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 |
| US5872608A (en) * | 1994-09-26 | 1999-02-16 | 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 |
| US6583848B2 (en) | 1998-05-15 | 2003-06-24 | 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 |
| KR20020030682A (en) * | 2000-10-19 | 2002-04-25 | 안재우 | Cotton coating gloves Separation & Guide System |
| US8405814B2 (en) * | 2005-09-28 | 2013-03-26 | Lg Display Co., Ltd. | Liquid crystal display device and fabricating method thereof |
| CN115629499A (en) * | 2022-12-08 | 2023-01-20 | 惠科股份有限公司 | Display panel and display device |
| US11947224B1 (en) | 2022-12-08 | 2024-04-02 | HKC Corporation Limited | Display panel and display device |
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