JPS62218937A - Liquid crystal display pannel - Google Patents
Liquid crystal display pannelInfo
- Publication number
- JPS62218937A JPS62218937A JP6228886A JP6228886A JPS62218937A JP S62218937 A JPS62218937 A JP S62218937A JP 6228886 A JP6228886 A JP 6228886A JP 6228886 A JP6228886 A JP 6228886A JP S62218937 A JPS62218937 A JP S62218937A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- electrode substrates
- liquid crystal
- sealing material
- crystal display
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 41
- 239000000758 substrate Substances 0.000 claims abstract description 59
- 239000002245 particle Substances 0.000 claims abstract description 47
- 229920005989 resin Polymers 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 34
- 239000003566 sealing material Substances 0.000 claims abstract description 28
- 125000006850 spacer group Chemical group 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims description 14
- 239000000565 sealant Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003822 epoxy resin Substances 0.000 abstract description 6
- 229920000647 polyepoxide Polymers 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 6
- 229920001187 thermosetting polymer Polymers 0.000 abstract description 6
- 239000011521 glass Substances 0.000 abstract description 5
- 239000004793 Polystyrene Substances 0.000 abstract description 4
- 229920006037 cross link polymer Polymers 0.000 abstract description 4
- 229920002223 polystyrene Polymers 0.000 abstract description 4
- 238000007772 electroless plating Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 229910052759 nickel Inorganic materials 0.000 abstract description 3
- 238000007650 screen-printing Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000007639 printing Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、薄型、軽量、低消費電力ディスプレイとして
利用されている液晶表示パネルに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a liquid crystal display panel used as a thin, lightweight, and low power consumption display.
従来の技術
今日、液晶表示パネルは、薄型、軽量、低消費電力のデ
ィスプレイとして、電卓を初めとする各方面で広範に使
われており、今後益々その利用度が高まるものと期待さ
れている状況にある。Conventional Technology Today, liquid crystal display panels are used in a wide variety of applications, including calculators, as thin, lightweight, and low power consumption displays, and their use is expected to increase in the future. It is in.
さて、液晶表示パネルの一例は、第６図、第７図に示す
ような構成になっている。すなわち、２枚の対向するガ
ラス基板などの電極基板１．１ａ間にシール材２を用い
て液晶３を密封し、電極基板１，１ａ間の所定箇所を電
気的に接続するために導電性材料 を配置した構成とな
っている。また、５は液晶注入孔を封止している封口樹
脂である。そして、電極基板１より面積の大きい電極基
板１ａ（ｉｌｌに外部回路と接続するだめの取出し電極
（図示せず〕が設けられ、かつ電極基板１，１ａの内面
側には所定のパターンでもっで電極（図示せず）が形成
されている。Now, an example of a liquid crystal display panel has a structure as shown in FIGS. 6 and 7. That is, the liquid crystal 3 is sealed between two opposing electrode substrates 1.1a such as glass substrates using a sealant 2, and a conductive material is used to electrically connect predetermined locations between the electrode substrates 1 and 1a. It is configured with . Further, 5 is a sealing resin that seals the liquid crystal injection hole. The electrode substrate 1a (ill), which has a larger area than the electrode substrate 1, is provided with a lead-out electrode (not shown) for connection to an external circuit, and a predetermined pattern is formed on the inner surface of the electrode substrates 1 and 1a. Electrodes (not shown) are formed.
従来、上記導電性材料として、以下のような材料が提案
または実用化されている。Conventionally, the following materials have been proposed or put into practical use as the above-mentioned conductive materials.
（１）導電性金属箔。(1) Conductive metal foil.
（２） ガラス繊維またはガラスピーズの表面に導電
性金属膜を形成し、その粒径が上下基板間隙と、同じも
のを熱硬化型樹脂中に混入したもの。(2) A conductive metal film is formed on the surface of glass fibers or glass beads, and the particles having the same particle size as the gap between the upper and lower substrates are mixed into a thermosetting resin.
（３） カーボン微粉末または銀微粉末を熱硬化型樹
脂中に混入したもの。(3) Carbon fine powder or silver fine powder mixed into thermosetting resin.
発明が解決しようとする問題点
しかしながら、上記（１）の金属箔は量産性に問題があ
り、また（２）の場合は量産性には問題はないが、ガラ
ス繊維、ガラスピーズとも弾力性がないため、機械的お
よび熱的衝撃に弱く、簡単に接触不良を起すなど、信頼
性に問題があるものであった。Problems to be Solved by the Invention However, the metal foil in (1) above has a problem in mass production, and in the case of (2), although there is no problem in mass production, both glass fiber and glass beads have poor elasticity. Because of this, they are susceptible to mechanical and thermal shocks, easily causing poor contact, and have problems with reliability.
このようなことから、今日では上記（１） 、 （２）
の構成は全く使用されていなく、もっばら上記（３）の
構成が用いられている。しかし、この（３）の構成でも
、昨今は液晶表示パネルの上下電極基板間の電気接続数
が増加し、その平面方向の間隔が狭くなってきたことに
より、導電性材料の少しの印刷位置のズレによって、同
一基板上の隣シ合う電極同志がショートするという不良
が増加しているのが実情である。For this reason, today the above (1) and (2)
This configuration is not used at all, and the configuration (3) above is mostly used. However, even with configuration (3), the number of electrical connections between the upper and lower electrode substrates of a liquid crystal display panel has increased recently, and the spacing in the plane direction has become narrower. The reality is that defects such as short-circuiting between adjacent electrodes on the same substrate due to misalignment are increasing.
また、この（３）の構成ではシール材と導電性材料とが
全く異なる材料であり、兼用できないため、電極基板に
必ず２回印刷しなければならず、工数が多くかかるとい
う欠点を有している。さらに、内、外シール材を設ける
２重シールの液晶表示パネルでは導電性材料を含めて３
回印刷する必要が必るため、導電性材料をディスペンサ
ーなどにより塗布するなど、非常に煩雑であるという問
題点を有している。In addition, in configuration (3), the sealing material and the conductive material are completely different materials and cannot be used together, so the electrode substrate must be printed twice, which has the disadvantage of requiring a large number of man-hours. There is. Furthermore, in double-sealed liquid crystal display panels that have inner and outer sealants, three
Since it is necessary to perform printing several times, there is a problem in that the conductive material is applied using a dispenser or the like, which is very complicated.
本発明は以上のような従来の欠点を除去すべくなされた
ものであシ、量産性が良く、信頼性が高く、しかも電極
間ショートが全く発生しなく、さらには印刷工程を１回
減らすことによって安価に製作できる液晶表示パネルを
提供することを目的とするものである。The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional method.It is easy to mass produce, has high reliability, does not cause any short circuit between electrodes, and further reduces the number of printing steps by one. The purpose of this invention is to provide a liquid crystal display panel that can be manufactured at low cost.
問題点を解決するだめの手段
この目的を達成するために本発明の液晶表示パネルは、
対向配置された電極基板と、その電極基板間にシール材
を用いて密封された液晶とを具備し、上記シール材とし
て上記電極基板間隙以上の粒径をもつ弾力性のある導電
性粒子を樹脂中に混入したものを用い、かつこのシール
材を構成する導電性粒子でもって上記電極基板間の適宜
の箇所の電気的接続を得るようにしたものである。Means for Solving the Problems In order to achieve this objective, the liquid crystal display panel of the present invention has the following features:
It is equipped with electrode substrates arranged opposite to each other and a liquid crystal sealed between the electrode substrates using a sealant, and as the sealant, elastic conductive particles having a particle size larger than the gap between the electrode substrates are used as a resin. The conductive particles constituting the sealing material are used to establish electrical connections at appropriate locations between the electrode substrates.
作用
この構成によれば、まずシール材を構成する導電性粒子
を混入した樹脂が導電性材料を兼用し、樹脂であること
からスクリーン印刷などが可能であるため、量産性が高
いものである。そして、導電性粒子は粒径が電極基板間
隙以上の大きさをもっているため、樹脂中への混入量が
１０ｗｔ％以下と少なくてすむこととなる。したがって
、本発明における導電性粒子混入樹脂は、電極基板間の
電気的接続をするが、同一電極基板上の隣接する電極間
には電気を通さないために、電極間シぢ−トの不良が全
く生じないと共にシール材および電極基板間の導電性材
料として兼用することができることとなる。また、これ
に伴い従来２回の印刷が必要であったのに対し、１回の
印刷でよいことから、導電性粒子の使用量を少なくする
ことができることと相まって生産性、コスト面で有利な
ものである。さらに、樹脂中の導電性粒子に弾力性が、
ｂｂ、電極基板間隙まで圧縮して使用するため、電気的
接続が機械的、熱的衝撃に強く、しかも樹脂としては従
来よシシール材として使用されている信頼性の高いもの
が利用できるため、液晶表示パネルとして信頼性の高い
ものとなる。Function: According to this configuration, first, the resin mixed with conductive particles constituting the sealing material also serves as a conductive material, and since it is a resin, screen printing, etc. can be performed, so that mass production is high. Since the conductive particles have a particle size larger than the gap between the electrode substrates, the amount mixed into the resin can be as small as 10 wt% or less. Therefore, the conductive particle-containing resin in the present invention makes an electrical connection between electrode substrates, but does not conduct electricity between adjacent electrodes on the same electrode substrate, so that defects in the interelectrode sheet may occur. This means that it does not occur at all and can be used both as a sealing material and as a conductive material between electrode substrates. In addition, as compared to the conventional method that required two printings, only one printing is required, which is advantageous in terms of productivity and cost, as well as the ability to reduce the amount of conductive particles used. It is something. Furthermore, the conductive particles in the resin have elasticity,
Since the bb is compressed to the electrode substrate gap, the electrical connection is resistant to mechanical and thermal shock, and the resin used is highly reliable, which is conventionally used as a sealing material. It becomes highly reliable as a display panel.
実施例 以下、本発明の実施例を図面を参照しながら説明する。Example Embodiments of the present invention will be described below with reference to the drawings.
（実施例１つ
第１図〜第３図に本発明における液晶表示バネルの一実
施例の図面を示す。(One Embodiment) FIGS. 1 to 3 show drawings of one embodiment of a liquid crystal display panel according to the present invention.
まず、上下に対向するガラス基板などの電極基板６，６
ａの片方にシール材７として、例えば熱硬化型エポキシ
樹脂などの樹脂８に電極基板間隙保持用のスペーサ９と
して粒径９μのガラス繊維を１，５ ｗｔ％、導電性粒
子１ｏとして平均粒径１０μのポリスチレン架橋重合体
表面に無電解メッキにより厚み０．１μのニッケルをメ
ッキしたものを１ｗｔ％それぞれ混入したものをスクリ
ーン印刷法によシ印刷した。ここで、上記導電性粒子１
０としては、弾力性をもっていることが認められた。First, electrode substrates 6, 6 such as glass substrates facing each other vertically.
On one side of a, 1.5 wt% of glass fiber with a particle size of 9μ is used as a sealing material 7, a resin 8 such as a thermosetting epoxy resin is used as a spacer 9 for maintaining the gap between the electrode substrates, and conductive particles 1o with an average particle size are used. The surface of a 10 μm polystyrene crosslinked polymer was plated with nickel to a thickness of 0.1 μm by electroless plating, and 1 wt % of each was mixed therein and printed by screen printing. Here, the conductive particles 1
A score of 0 indicates elasticity.
次に、２枚の電極基板６，６ａを貼シ合せ、樹脂８を硬
化させた後、シール材Ｔで囲まれた電極基板ｅ、ｅａ間
の空間に液晶１１を注入し、その後、樹脂注入孔を熱硬
化型のエポキシ樹脂などからなる封口樹脂１２で封口し
て液晶表示パネルを作製した。Next, after pasting together the two electrode substrates 6 and 6a and curing the resin 8, liquid crystal 11 is injected into the space between the electrode substrates e and ea surrounded by the sealing material T, and then the resin is injected. The holes were sealed with a sealing resin 12 made of thermosetting epoxy resin or the like to produce a liquid crystal display panel.
上記の実施例において、電極基板６．６２Ｌの相対向す
る内面側には所定のパターンでもって電極１３．１３ｉ
Ｌが設けられており、かつ電極基板６よ多面積の大きい
電極基板６ａ側のそのはみ出し部には上記電極１３２Ｌ
と連絡して外部回路と接続するだめの取出し電極（図示
せず）が設けられている。また、上記シール材７は上下
の電極基板６゜６２Ｌに設けられた電極１３ 、１３２
Ｌの所定部間の電気的接続を得るべく所定の箇所に印刷
されており、これを図ではシール部と導通部が連結され
たパターンとして示している。このシール材７はもちろ
ん液晶１１を密封する目的で設けられた部分の一部でも
って上記電極基板６．６２Ｌ間の適宜の箇所の電気的接
続を得るようにしてもよい。この時、必要とする上下電
極基板６．６ａの接続部以外にもシール材７を構成する
樹脂８中の導電性粒子１０が存在すると、液晶表示パネ
ルとしての用をなさないことになる。したがって、その
ような場合には、電極基板６．６乙の少なくとも一方の
所定箇所以外の電極１３（１３ａ）上に５ｉｎ２絶縁膜
を構成するなどの適宜の手段を講じることが必要である
。In the above embodiment, electrodes 13.13i are provided in a predetermined pattern on the opposing inner surfaces of the electrode substrate 6.62L.
The electrode 132L is provided on the protruding portion of the electrode substrate 6a side, which has a larger area than the electrode substrate 6.
A further lead-out electrode (not shown) is provided for communication with the external circuit. Further, the sealing material 7 is attached to the electrodes 13 and 132 provided on the upper and lower electrode substrates 6°62L.
It is printed at a predetermined location to obtain electrical connection between predetermined portions of L, and this is shown in the figure as a pattern in which a sealed portion and a conductive portion are connected. Of course, this sealing material 7 may also be used as part of a portion provided for the purpose of sealing the liquid crystal 11 to provide electrical connection at appropriate locations between the electrode substrates 6 and 62L. At this time, if the conductive particles 10 in the resin 8 constituting the sealing material 7 are present in areas other than the required connection portions of the upper and lower electrode substrates 6.6a, the liquid crystal display panel will be useless. Therefore, in such a case, it is necessary to take appropriate measures such as forming a 5in2 insulating film on the electrode 13 (13a) other than the predetermined location on at least one of the electrode substrates 6.6B.
そして、上記のようにして作製された液晶表示パネルを
、（１）高温（１２０’Ｃ）放置５００時間。Then, the liquid crystal display panel manufactured as described above was (1) left at a high temperature (120'C) for 500 hours.
（２）高温高湿（８６°Ｃ，８５％ＲＨ）放置ｓｏｏ時
間、（３）熱衝撃（−２０’Ｃ，＋７０’Ｃ）６０サイ
クルの試験を行ったが、何ら問題はなく、信頼性の良い
液晶表示パネルが得られた。(2) high temperature, high humidity (86°C, 85% RH) for a long time, and (3) thermal shock (-20'C, +70'C) for 60 cycles, but there were no problems and the reliability was high. A good liquid crystal display panel was obtained.
さて、本実施例では導電性粒子の濃度を１ｗｔ チと
したが、この濃度は該当部分の上下電極面積およびその
部分への上記導電性材料の塗布面積を広くすることによ
り、少なくできることは言うまでもない。しかしながら
、濃度が高くなりすぎると、粒子径が液晶表示パネルの
電極基板間隙よシ大きいものを使用するため、導電性粒
子の材料にもよるが、ギャップの均一な液晶表示パネル
が得られなくなる。本実施例におけるポリスチレン架橋
重合体では、濃度が１０ｗｔ％になると、本来９μであ
るべき上下基板間ギャップがそれよシ大きくなるため、
均一な液晶表示パネルが得られにくくなる。しだがって
、導電性粒子の濃度は粒子の粒度分布、樹脂への分散性
、上下電極面積およびその部分への塗布面積を考慮に入
れて決定する必要があるが、１０ｗｔ％以下で使用する
ことが望ましい。Now, in this example, the concentration of the conductive particles was set at 1 wt. However, it goes without saying that this concentration can be reduced by widening the area of the upper and lower electrodes in the relevant part and the area where the conductive material is applied to that part. . However, if the concentration becomes too high, particles with a particle diameter larger than the gap between the electrode substrates of the liquid crystal display panel are used, so it becomes impossible to obtain a liquid crystal display panel with a uniform gap, depending on the material of the conductive particles. In the polystyrene crosslinked polymer in this example, when the concentration becomes 10 wt%, the gap between the upper and lower substrates, which should originally be 9μ, becomes larger.
It becomes difficult to obtain a uniform liquid crystal display panel. Therefore, the concentration of conductive particles must be determined by taking into consideration the particle size distribution of the particles, dispersibility in the resin, the area of the upper and lower electrodes, and the area of application to that part, but it should be used at 10 wt% or less. This is desirable.
また、導電性粒子を混入する樹脂としては、本実施例で
はエポキシ樹脂を使用しだが、電極基板間の接着性に優
れた材料であれば、その他の材料でも使用可能なことは
言うまでもないことである。Furthermore, although epoxy resin was used in this example as the resin into which the conductive particles are mixed, it goes without saying that other materials can be used as long as they have excellent adhesion between the electrode substrates. be.
さらに、本実施例ではシール材７を、シール部と電極基
板間導通部とが連結されたパターンとして設けた場合に
ついて説明しているが、シール部における導通部以外に
、シール部と離れた位置にも導通部を設けるようにして
もよいものである。Furthermore, in this embodiment, a case is described in which the sealing material 7 is provided as a pattern in which the sealing part and the conductive part between the electrode and substrate are connected. It is also possible to provide a conductive portion therein.
（実施例２）
第４図および第５図に本発明による実施例２の液晶表示
パネルを示す。(Example 2) FIGS. 4 and 5 show a liquid crystal display panel of Example 2 according to the present invention.
まず、片方の電極基板６に、ラジカル重合型の紫外線硬
化型樹脂（ポリエステルアクリレート）を内シール材１
４として印刷する（スペーサとしてのガラス繊維は入れ
ていない）。また、もう一方の電極基板６２Ｌには、外
シール材１５として力 。First, the inner sealing material 1 is applied to one electrode substrate 6 using a radical polymerizable ultraviolet curable resin (polyester acrylate).
4 (glass fibers as spacers are not included). In addition, a force is applied to the other electrode substrate 62L as an outer sealing material 15.
チオン重合型の紫外線硬化型エポキシ樹脂に導電性粒子
として平均粒径１０μのポリスチレン架橋重合体表面に
０．１μ厚のニッケルを無電解メッキしたものを４ｗｔ
％混入し、導電性材料兼用としてスクリーン印刷する（
スペーサとしてのガラス繊維は入っていない）。そして
、電極基板６のシール内に必要量の液晶１１を滴下し、
真空中で２枚の電極基板６．６１！Ｌを貼シ合せ加圧す
る。次に、紫外線を照射し樹脂を硬化させ、実施例１と
同様良好な液晶表示パネルを得た。4wt of thione-polymerizable ultraviolet curing epoxy resin with electroless plating of 0.1μ thick nickel on the surface of polystyrene cross-linked polymer with an average particle size of 10μ as conductive particles.
% mixed in and screen printed as a conductive material (
(Does not contain glass fiber as a spacer.) Then, drop the required amount of liquid crystal 11 into the seal of the electrode substrate 6,
Two electrode substrates in vacuum 6.61! Laminate L and apply pressure. Next, the resin was cured by irradiation with ultraviolet rays to obtain a good liquid crystal display panel as in Example 1.
本実施例では、外シール材１５に導電性粒子を混入した
が、内シール材１４に入れても、また両方に入れても問
題ないことが確かめられている。In this embodiment, conductive particles are mixed into the outer sealing material 15, but it has been confirmed that there is no problem even if they are mixed into the inner sealing material 14 or both.
さらに、樹脂としては必ずしも紫外線硬化型である必要
はなく、電極基板６．５＆を貼シ合せてから液晶１１を
注入する方法にも適用できることはいうまでもないこと
である。Furthermore, the resin does not necessarily have to be of the ultraviolet curing type, and it goes without saying that the present invention can also be applied to a method in which the liquid crystal 11 is injected after bonding the electrode substrates 6.5&.
また、本実施例では、スペーサとしてのガラス繊維は使
用しなかったが、片方あるいは両方に入れても何ら問題
はなく、その方がむしろ均一な液晶表示パネルが作シや
すいものである。Further, in this embodiment, glass fibers were not used as spacers, but there is no problem if they are included in one or both of them, and it is actually easier to produce a uniform liquid crystal display panel.
また今日、紫外線のみで硬化可能な導電性樹脂は実用化
されていないにもかかわらず、本発明によればそれが可
能であり、本実施例のように液晶表示パネルの生産リー
ドタイムを゛大巾に短縮可能にするものである。Furthermore, although conductive resins that can be cured only by ultraviolet rays have not been put into practical use today, it is possible according to the present invention, and as in this example, the production lead time of liquid crystal display panels can be greatly reduced. This makes it possible to shorten the width.
なお、本発明で使用する導電性粒子としては、その働き
からいって実施例で述べたように電極間隙以上の粒径を
もっていることが必要であり、かつ弾力性のあるもので
あればよいものである。そして、この導電性粒子は基板
間隙よシも粒径の小さいものが一部含まれていても実用
上は問題ないものである。In addition, the conductive particles used in the present invention need to have a particle size larger than the electrode gap, as described in the examples, in view of their function, and only need to be elastic. It is. Even if some of the conductive particles have a small particle size in the gap between the substrates, there is no problem in practical use.
発明の効果
以上のように本発明は構成されているものであり、次の
通りの特徴を有している。Effects of the Invention The present invention is constructed as described above and has the following features.
まず、導電性粒子として径が電極基板間隙以上の大きさ
のものを使用し、樹脂中への混入量が少なく、本発明に
よる導電性粒子混入樹脂は、電極基板間の電気接続をす
るが同一基板上の隣接する電極間には電気を通さないた
めに、電極間ショートの不良が生じることがなく、しか
もシール材および電極基板間の導電性材料として兼用す
ることができる。したがって、従来はシール材、導電性
材料と２回印刷する必要があったが、本発明によれば１
回ですむと共にスクリーン印刷などが可能であるため、
導電性粒子の使用量が少ないことと相まって生産性、コ
スト面で有利である。また、弾力性のある導電性粒子を
圧縮して使用し、樹脂としても従来より使用されている
信頼性の高いものが使用できるため、高信頼性の液晶表
示パネルが得られることとなる。さらに、従来２重シー
ル液晶表示パネルは導電性材料を含めて３回印刷する必
要があるため、導電性材料はディスペンサーなどにより
塗布するなど非常に困難であったが、本発明では印刷回
数が２回と従来と同じであり、容易に２重シール液晶表
示パネルが作成できるという利点が得られる。First, conductive particles with a diameter larger than the gap between the electrode substrates are used, and the amount mixed into the resin is small. Since electricity does not pass between adjacent electrodes on the substrate, there is no possibility of short-circuit between the electrodes, and it can also be used as a sealing material and a conductive material between the electrode substrates. Therefore, conventionally it was necessary to print the sealing material and the conductive material twice, but according to the present invention, printing is done once.
Because it only takes a few times and can be screen printed, etc.
Coupled with the small amount of conductive particles used, this is advantageous in terms of productivity and cost. Further, since compressed elastic conductive particles are used and highly reliable resins that have been used conventionally can be used, a highly reliable liquid crystal display panel can be obtained. Furthermore, conventional double-sealed liquid crystal display panels require printing three times including the conductive material, making it very difficult to apply the conductive material with a dispenser, but with the present invention, the number of printing is two times. The process is the same as the conventional method, and the advantage is that a double-sealed liquid crystal display panel can be easily produced.
また今日、紫外線のみで短時間に硬化できる導電性材料
が考案されていないにもかかわらず、本発明によれば樹
脂として紫外線硬化型樹脂を使用することによシ、短時
間で液晶表示パネルを作ることができるものである。Furthermore, although no conductive material has been devised that can be cured in a short time using only ultraviolet rays, the present invention allows liquid crystal display panels to be formed in a short time by using an ultraviolet curable resin as the resin. It is something that can be made.
第１図は本発明の実施例１における液晶表示パネルの上
面図、第２図は同第１図のＡ−Ａ’線断面図、第３図は
同要部拡大断面図、第４図は本発明の実施例２における
液晶表示パネルの上面図、第５図は同第４図のＢ−Ｂ’
線断面図、第６図は従来の液晶表示パネルの上面図、第
７図は同第６図のｃ−ｃ’線断面図である。
６．６２Ｌ・・・・・・電極基板、７・・・・・・シー
ル材、８・・・・・・樹脂、９・・・・・・ガラス繊維
、１０・・・・・・導電性粒子、１１・・・・・・液晶
、１３．１３ｉＬ・・・・・・電極、１４・・・・・・
内シール材、１５・・・・・・外シール材。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名６、
ムー電極基板
７− シール材
８− 崩脂
９−−−スベ−プ
１０−一一譚電」生Ｂ子
第２図
” １３ａ、。
第４図
乙山FIG. 1 is a top view of a liquid crystal display panel in Example 1 of the present invention, FIG. 2 is a cross-sectional view taken along line A-A' in FIG. 1, FIG. 3 is an enlarged cross-sectional view of the same essential parts, and FIG. A top view of the liquid crystal display panel in Example 2 of the present invention, FIG. 5 is taken along line BB' in FIG.
6 is a top view of a conventional liquid crystal display panel, and FIG. 7 is a sectional view taken along line cc' in FIG. 6. 6.62L... Electrode substrate, 7... Sealing material, 8... Resin, 9... Glass fiber, 10... Conductive Particles, 11...Liquid crystal, 13.13iL...Electrode, 14...
Inner seal material, 15... Outer seal material. Name of agent: Patent attorney Toshio Nakao and 1 other person6
Mu electrode substrate 7- Sealing material 8- Lipid removal 9--Speed 10-11 Tanden "Raw B" 2nd figure 13a, 4th figure Otsuyama
Claims (4)
ール材を用いて密封された液晶とを具備し、上記シール
材として上記電極基板間隙以上の粒径をもつ弾力性のあ
る導電性粒子を樹脂中に混入したものを用い、かつこの
シール材を構成する導電性粒子でもって上記電極基板間
の適宜の箇所の電気的接続を得るようにしたことを特徴
とする液晶表示パネル。(1) Comprising electrode substrates arranged facing each other and a liquid crystal sealed between the electrode substrates using a sealing material, the sealing material being an elastic conductive material having a particle size larger than the gap between the electrode substrates. 1. A liquid crystal display panel characterized in that particles are mixed in a resin, and the conductive particles constituting the sealing material are used to establish electrical connections at appropriate locations between the electrode substrates.
くとも一つに電極基板間隙以上の粒径をもつ弾力性のあ
る導電性粒子を樹脂中に混入したものを用いてなる特許
請求の範囲第１項記載の液晶表示パネル。(2) A claim in which multiple sealing materials are provided, and at least one of the sealing materials uses a resin mixed with elastic conductive particles having a particle size larger than the gap between the electrode substrates. The liquid crystal display panel according to item 1.
なる特許請求の範囲第１項記載の液晶表示パネル。(3) The liquid crystal display panel according to claim 1, wherein an ultraviolet curable resin is used as the sealant resin.
いる特許請求の範囲第１項記載の液晶表示パネル。(4) The liquid crystal display panel according to claim 1, wherein the conductive particles also serve as spacers for the electrode-substrate gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6228886A JPS62218937A (en) | 1986-03-20 | 1986-03-20 | Liquid crystal display pannel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6228886A JPS62218937A (en) | 1986-03-20 | 1986-03-20 | Liquid crystal display pannel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62218937A true JPS62218937A (en) | 1987-09-26 |
Family
ID=13195781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6228886A Pending JPS62218937A (en) | 1986-03-20 | 1986-03-20 | Liquid crystal display pannel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62218937A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6488431A (en) * | 1987-09-29 | 1989-04-03 | Matsushita Electric Ind Co Ltd | Manufacture of liquid crystal panel |
| JPH02153314A (en) * | 1988-07-04 | 1990-06-13 | Matsumoto Yushi Seiyaku Co Ltd | Thin magnetic fluid film and its production |
| JPH02132214U (en) * | 1989-04-11 | 1990-11-02 | ||
| JPH0329830U (en) * | 1989-07-28 | 1991-03-25 | ||
| JPH0329832U (en) * | 1989-07-28 | 1991-03-25 | ||
| JPH0337422U (en) * | 1989-08-22 | 1991-04-11 | ||
| EP0621502A1 (en) * | 1993-04-23 | 1994-10-26 | Seiko Instruments Inc. | Liquid crystal electro-optical device |
| US5946057A (en) * | 1997-05-28 | 1999-08-31 | Nec Corporation | Liquid crystal display having electrostatic discharge damage prevention |
| WO2000077567A1 (en) * | 1999-06-11 | 2000-12-21 | Seiko Epson Corporation | Lcd and method of manufacture thereof |
| US6888606B2 (en) | 2001-04-16 | 2005-05-03 | Seiko Epson Corporation | Electrooptic device and electronic apparatus |
| JP2005283865A (en) * | 2004-03-29 | 2005-10-13 | Sanyo Electric Co Ltd | Liquid crystal display device |
| US7088417B2 (en) | 2001-04-16 | 2006-08-08 | Seiko Epson Corporation | Electrooptic device, method of manufacturing the same, and electronic apparatus |
| US7443478B2 (en) | 1997-03-27 | 2008-10-28 | Semiconductor Energy Laboratory Co., Ltd. | Contact structure |
| CN105487581A (en) * | 2014-10-01 | 2016-04-13 | 阿自倍尔株式会社 | Controlling apparatus |
| CN110221486A (en) * | 2019-06-17 | 2019-09-10 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof, display device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58182685A (en) * | 1982-04-20 | 1983-10-25 | セイコーエプソン株式会社 | Vertical energization agent for display panel |
-
1986
- 1986-03-20 JP JP6228886A patent/JPS62218937A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58182685A (en) * | 1982-04-20 | 1983-10-25 | セイコーエプソン株式会社 | Vertical energization agent for display panel |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6488431A (en) * | 1987-09-29 | 1989-04-03 | Matsushita Electric Ind Co Ltd | Manufacture of liquid crystal panel |
| JPH02153314A (en) * | 1988-07-04 | 1990-06-13 | Matsumoto Yushi Seiyaku Co Ltd | Thin magnetic fluid film and its production |
| JPH02132214U (en) * | 1989-04-11 | 1990-11-02 | ||
| JPH0329830U (en) * | 1989-07-28 | 1991-03-25 | ||
| JPH0329832U (en) * | 1989-07-28 | 1991-03-25 | ||
| JPH0337422U (en) * | 1989-08-22 | 1991-04-11 | ||
| EP0621502A1 (en) * | 1993-04-23 | 1994-10-26 | Seiko Instruments Inc. | Liquid crystal electro-optical device |
| US5481388A (en) * | 1993-04-23 | 1996-01-02 | Seiko Instruments Inc. | Liquid crystal electro-optical device having columnar glass fibers and glass balls in the sealing portion |
| US7561242B2 (en) | 1997-03-27 | 2009-07-14 | Semiconductor Energy Laboratory Co., Ltd. | Contact structure |
| US7760316B2 (en) | 1997-03-27 | 2010-07-20 | Semiconductor Energy Laboratory Co., Ltd. | Contact structure |
| US9217901B2 (en) | 1997-03-27 | 2015-12-22 | Semiconductor Energy Laboratory Co., Ltd. | Contact structure |
| US8908138B2 (en) | 1997-03-27 | 2014-12-09 | Semiconductor Energy Laboratory Co., Ltd. | Contact structure |
| US7697102B2 (en) | 1997-03-27 | 2010-04-13 | Semiconductor Energy Laboratory Co., Ltd | Contact structure |
| US7616273B2 (en) | 1997-03-27 | 2009-11-10 | Semiconductor Energy Laboratory Co., Ltd. | Contact structure |
| US7443478B2 (en) | 1997-03-27 | 2008-10-28 | Semiconductor Energy Laboratory Co., Ltd. | Contact structure |
| US5946057A (en) * | 1997-05-28 | 1999-08-31 | Nec Corporation | Liquid crystal display having electrostatic discharge damage prevention |
| US6108057A (en) * | 1997-05-28 | 2000-08-22 | Nec Corporation | Liquid crystal display having electrostatic discharge damage prevention |
| US7190430B2 (en) | 1999-06-11 | 2007-03-13 | Seiko Epson Corporation | Liquid crystal device and manufacturing method therefor |
| US6930745B1 (en) | 1999-06-11 | 2005-08-16 | Seiko Epson Corporation | LCD and method of manufacture thereof |
| KR100441484B1 (en) * | 1999-06-11 | 2004-07-23 | 세이코 엡슨 가부시키가이샤 | LCD and method of manufacture thereof |
| WO2000077567A1 (en) * | 1999-06-11 | 2000-12-21 | Seiko Epson Corporation | Lcd and method of manufacture thereof |
| US7088417B2 (en) | 2001-04-16 | 2006-08-08 | Seiko Epson Corporation | Electrooptic device, method of manufacturing the same, and electronic apparatus |
| US6888606B2 (en) | 2001-04-16 | 2005-05-03 | Seiko Epson Corporation | Electrooptic device and electronic apparatus |
| JP2005283865A (en) * | 2004-03-29 | 2005-10-13 | Sanyo Electric Co Ltd | Liquid crystal display device |
| CN105487581A (en) * | 2014-10-01 | 2016-04-13 | 阿自倍尔株式会社 | Controlling apparatus |
| CN110221486A (en) * | 2019-06-17 | 2019-09-10 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof, display device |
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