JPH06235925A - Manufacture of liquid crystal display element - Google Patents

Manufacture of liquid crystal display element

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Publication number
JPH06235925A
JPH06235925A JP2226493A JP2226493A JPH06235925A JP H06235925 A JPH06235925 A JP H06235925A JP 2226493 A JP2226493 A JP 2226493A JP 2226493 A JP2226493 A JP 2226493A JP H06235925 A JPH06235925 A JP H06235925A
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JP
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Patent type
Prior art keywords
liquid
crystal
element
quantity
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
Application number
JP2226493A
Other languages
Japanese (ja)
Inventor
Katsuya Tamaoki
勝也 玉置
Original Assignee
Matsushita Electric Ind Co Ltd
松下電器産業株式会社
Priority date (The priority date 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 date listed.)
Filing date
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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1341Filling or closing of the cell
    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1341Filling or closing of the cell
    • G02F2001/13415Drop filling process

Abstract

PURPOSE: To manufacture a liquid crystal display element taking no long time for sealing liquid crystal, causing no pollution of liquid crystal and no mixing of refuse, and not requiring the precision of the liquid crystal drip quantity.
CONSTITUTION: A seal material 3 provided with a liquid crystal discharge port 5 in advance is arranged at least on one of electrode substrates 1, 2 facing each other, a required quantity or above of liquid crystal 6 is dripped on the electrode substrate 1, then two electrode substrates 1, 2 are stuck together in vacuum, excess liquid crystal is discharged, and a sealing agent 7 is applied. The liquid crystal injection and sealing can be performed in a short time, the pollution of the liquid crystal 6 and the mixing of refuse are prevented, the precision of the drip quantity of the liquid crystal 6 is not required, and a liquid crystal display element can be easily manufactured.
COPYRIGHT: (C)1994,JPO&Japio

Description

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

【0001】 [0001]

【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素子の製造方法に関するものである。 The present invention relates are those thin, light, a method of manufacturing a liquid crystal display device is used as a low power consumption display.

【0002】 [0002]

【従来の技術】今日、液晶表示素子は薄型、軽量、低消費電力ディスプレイとして、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状況にある。 BACKGROUND OF THE INVENTION Today, a liquid crystal display element is a thin, lightweight, low-power consumption display, has been widely used in various fields, there is a situation where increasing its use of more and more in the future.

【0003】従来、この液晶表示素子を製造する方法として、下記のようなものが提案されている。 Conventionally, as a method of manufacturing the liquid crystal display device, it has been proposed as follows.

【0004】(A)図3(a)〜(e)に示すように対向配置された2枚の電極基板10,11をシール材12 [0004] (A) Fig. 3 (a) ~ the two electrode substrates 10, 11 which are opposed to each other as shown in (e) the sealant 12
を用いて接着固定し、サンドイッチ型セル構造の容器を作り、上記シール部にあらかじめ設けられた液晶注入口14より液晶を毛細管現象、加圧、あるいは真空などの手段を用いて封入、封口する方法。 Bonded and fixed with, making containers of the sandwich-type cell structure, sealed using means such as previously provided liquid crystal injection port 14 capillarity the liquid from the pressurized or vacuum, to the seal portion, for sealing methods . なお、同図で13は基板間隔を一定に保つためのスペーサ、16は封口樹脂である。 Incidentally, 13 in the figure spacer for keeping a substrate gap constant, 16 is a sealing resin.

【0005】(B)図4(a)〜(d)に示すように対向配置された2枚の電極基板17,18の少なくとも片方にシール材19を配置し、電極基板17に液晶22を一定量滴下し、その2枚の電極基板17,18を真空中で貼合わせる方法。 [0005] (B) to FIG. 4 (a) ~ sealing material 19 at least one of two electrode substrates 17, 18 disposed opposite as shown in (d) is arranged, fixed to the liquid crystal 22 in the electrode substrate 17 the amount added dropwise, how is laminated two sheets of electrode substrates 17 and 18 thereof in vacuo.

【0006】 [0006]

【発明が解決しようとする課題】しかしながら上記(A)の方法では、必ず注入口端面が液晶と接触するため、液晶が汚染されたり、ゴミが混入することから液晶表示パネルの品質トラブルの原因となる。 In the method of the object to be Solved by the Invention However the (A), since it surely inlet end face is in contact with the liquid, or liquid crystal is contaminated, causing quality problems of the liquid crystal display panel since the dust is mixed Become. また、この方法では、液晶注入に時間がかかり、例えば大型の液晶表示素子になると時には60分以上にもなることがある。 Further, in this method, it takes time to the liquid crystal injection, for example, a large-sized liquid crystal display device of the times may be greater than or equal to 60 minutes.
さらには、電極基板がフィルムなどの柔軟な材料である場合、液晶注入時に、気圧差により上下の電極基板が接触し、配向不良を起こす。 Furthermore, when the electrode substrate is a flexible material such as a film, when the liquid crystal injection, the upper and lower electrode substrates are contacted by the pressure difference, causing poor orientation.

【0007】また上記(B)の方法では、特開昭62− [0007] In the method of the above (B) is, JP-A-62-
89025号公報に示されているような上記(A)の方法の課題を克服すべく方策がとられているが、液晶の滴下量精度が低いと表示ムラになるという問題点を有している。 Measures to overcome the problems of methods as shown in 89025 JP (A) above is taken, but a problem that the liquid crystal dropping amount accuracy is low and uneven display . また、一方では、電極基板にスペーサが固定されていないと、滴下・貼合わせ時に液晶の流動にともなってスペーサも移動し、ギャップの不均一も生じるという問題もでてくる。 Further, on the other hand, when the spacer electrode substrate is not fixed, the spacer also moves with the liquid crystal flow during registration dropping Ha, come out a problem that also arises uneven gaps.

【0008】本発明は上述したような課題を解決すべくなされたものであり、液晶の封入に時間がかからず、また液晶の汚染やゴミの混入がなく、さらには液晶滴下量の精度を必要としない新規な製造方法を提供することを目的とするものである。 [0008] The present invention has been made to solve the above problems, does not take time to the liquid crystal of the encapsulation, and without contamination of the liquid crystal contamination and dust, more accuracy of the liquid crystal dropping amount it is an object to provide a novel production method which does not require.

【0009】 [0009]

【課題を解決するための手段】この目的を達成するために本発明の液晶表示素子の製造方法は、対向する2枚の電極基板の少なくとも片方に液晶排出口を設けたシール材を配置し、上記電極基板上に液晶を必要量以上のせ、 Method of manufacturing a liquid crystal display device of the present invention SUMMARY OF] To achieve this object, place the sealing material in which a liquid crystal outlet to at least one of the two opposed electrode substrates, loaded more than necessary amount of liquid to the electrode on the substrate,
その後、2枚の上記電極基板を真空中で貼合わせ、余分な液晶を排出するものである。 Then, two of the electrode substrates laminated in a vacuum, and discharges the excess liquid. また、液晶を滴下する前に、電極基板上に接着性スペーサ(あらかじめ熱可塑性樹脂あるいは熱硬化性樹脂をコーティングしたもの)を均一に配置して加熱し、電極基板に接着させる。 Also, before dropping the liquid crystal, the adhesive spacers (those coated previously thermoplastic resin or thermosetting resin) is heated uniformly disposed on the electrode substrate, adhered to the electrode substrate.

【0010】 [0010]

【作用】この方法によれば、電極基板上に液晶をのせ、 SUMMARY OF] According to this method, placing the liquid crystal on the electrode substrate,
その後、真空中ですばやく電極基板を組み合わせ、余分な液晶を排出することで液晶注入・封口が短時間ででき、また、液晶滴下量の精度を必要とせず、さらには接着性スペーサを使用することで、滴下・貼合わせ時の液晶の流動にともなうスペーサの移動を防ぐことができるため、容易に均一なセルギャップを得ることができ、その応用面での利用価値はきわめて大なるものである。 Then, combine the fast electrode substrate in a vacuum, can in a short period of time the liquid crystal injection and sealing by discharging excess liquid, also without requiring the precision of the liquid crystal dropping amount, further uses an adhesive spacer in, since it is possible to prevent the movement of the spacer with the liquid crystal flow during dropping-laminating, easily possible to obtain a uniform cell gap, utility value in its application face are those extremely becomes large.

【0011】 [0011]

【実施例】図1(a)〜(e)は本発明による製造工程の一実施例を示す概念図、図2は同実施例において使用する接着性スペーサの断面図を示している。 DETAILED DESCRIPTION FIG. 1 (a) ~ (e) are schematic diagram showing an example of a manufacturing process according to the invention, FIG 2 shows a cross-sectional view of the adhesive spacers used in the embodiment. 本実施例ではスペーサとしてシリカ系のものを用い、コーティング樹脂には接着温度約150℃のアクリル系樹脂を使用した。 Used as the silica as spacers in this embodiment, the coated resin was used an adhesive temperature of about 0.99 ° C. acrylic resin.

【0012】まず図1において(a),(b)に示すように、液晶分子を配向させるための処理が終わったガラスなどの電極基板(透明電極によりパターンが形成されているが、図面では省略している。)1,2を用意し、 [0012] First, in FIG. 1 (a), (b), the although the electrode substrate (a transparent electrode such as glass processing is finished for aligning the liquid crystal molecules pattern is formed, it is omitted in the drawing to have.) 1 and 2 were prepared to, and
一方の電極基板1にシール材3をスクリーン印刷法により印刷する。 The sealing member 3 to one electrode substrate 1 by a screen printing method. ここで上記シール材3にはあらかじめ液晶排出口5を設けている。 Here in the sealing material 3 is provided with a liquid crystal outlet 5 in advance. もう一方の電極基板2には接着性スペーサ4を均一に配置している。 The other electrode substrate 2 are uniformly arranged an adhesive spacers 4. 次に図1(c)に示すように、一方の電極基板1上の上記シール材3により囲まれた部分のほぼ中央部に液晶6を一滴もしくは数滴、滴下する。 Next, as shown in FIG. 1 (c), a drop or a few drops of liquid crystal 6 in a substantially central portion of the portion surrounded by the sealing material 3 on one of the electrode substrate 1, it is added dropwise. そして、液晶排出口5より余分な液晶を排出したのち、封止材7を塗布することにより封止する。 Then, after discharging the excess liquid from the liquid discharge port 5 is sealed by applying the sealing material 7.

【0013】この際液晶6の滴下は、高精度微量吐出注射器やピペットあるいは定量吐出ポンプ等により行い、 [0013] At this time dropping the liquid crystal 6 was carried out by high-precision trace discharge syringe or a pipette or dispensing pump,
使用量より若干多めに滴下する。 Slightly larger amount is dropped from usage. ここで、注意しなければならないことは、滴下場所がシール材3にあまり近いと、液晶6が電極基板1,2を貼合わせる前にシール部まで流れ、電極基板1,2を貼合わせた時にシール部が切れたり、液晶6がシール部外にまであふれ出すことである。 Here, it must be noted that, when dropping place and too close to the sealing member 3, the liquid crystal 6 flows to the seal portion before is laminated electrode substrates 1 and 2, which laminated electrode substrates 1 and 2 or cut the seal portion, it is that the liquid crystal 6 overflowing to the seal outer. 本実施例によれば、液晶注入・封口が短時間で、 According to this embodiment, the liquid crystal injection and sealing in a short time,
かつ、容易に均一なセルギャップを得ることが確認できた。 And it was confirmed to be obtained easily uniform cell gap. 次に図2について説明する。 Next, FIG. 2 will be described. 8は熱可塑性樹脂または熱硬化性樹脂、9はスペーサ本体である。 8 of the thermoplastic resin or thermosetting resin, and 9 denotes a spacer body. 加熱作用により(a),(b)に示すように、コーティングされた樹脂が溶解または軟化し、電極基板と接着、固定する効果により液晶の流動にともなうスペーサの移動を防ぐことができる。 The heating action (a), (b), the coated resin is dissolved or softened, bonding the electrode substrate, it is possible to prevent movement of the spacer due to the flow of liquid by a fixed effectively.

【0014】 [0014]

【発明の効果】以上のように、本発明は電極基板上のシール部に液晶排出口を設け、またスペーサに接着性をもたせることにより、(1)液晶注入・封口が短時間で行うことができる。 As it is evident from the foregoing description, by to have adhesion LCD outlet provided, also on the spacers in the seal part of the present invention on the electrode substrate, be carried out in a short time (1) the liquid crystal injection and sealing it can. (2)液晶の汚染やゴミの混入がなくなる。 (2) there is no mixing of the liquid crystal pollution and dust. (3)液晶の滴下量精度を必要とせず、容易に製造することが出来る。 (3) does not require the dropping amount accuracy of the liquid crystal can be easily manufactured. (4)接着性スペーサを使用することで、滴下・貼合わせ時の液晶の流動にともなうスペーサの移動を防ぐことができ、均一なセルギャップを得ることができる優れた液晶表示素子の製造方法を実現できるものである。 (4) By using an adhesive spacer, it is possible to prevent movement of the spacer with the liquid crystal flow during dropping-laminating, an excellent method of manufacturing a liquid crystal display device it is possible to obtain a uniform cell gap it is those that can be achieved.

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

【図1】本発明の一実施例における液晶表示素子の製造法を説明する製造工程を示す概念図 Conceptual view showing a manufacturing process for explaining a manufacturing method of a liquid crystal display device according to an embodiment of the present invention; FIG

【図2】同実施例における熱可塑性樹脂または熱硬化性樹脂をコーティングした接着性スペーサの断面図 2 is a cross-sectional view of the adhesive spacers coated with thermoplastic resin or thermosetting resin in the same embodiment

【図3】従来の液晶表示素子の製造法(真空注入法)を説明する製造工程を示す概念図 Figure 3 is a conceptual diagram showing a manufacturing process for explaining a manufacturing method (vacuum injection method) of the conventional liquid crystal display device

【図4】従来の液晶表示素子の製造法(液晶滴下法)を説明する製造工程を示す概念図 [4] Production method of a conventional liquid crystal display device conceptual diagram showing a manufacturing process for explaining the (liquid crystal dropping method)

【符号の説明】 DESCRIPTION OF SYMBOLS

1,2 電極基板 3 シール材 4 接着性スペーサ 5 液晶排出口 6 液晶 7 封止材 8 熱可塑性樹脂または熱硬化性樹脂 9 スペーサ本体 And second electrode substrate 3 the sealing material 4 adhesive spacers 5 crystal outlet 6 LCD 7 sealant 8 thermoplastic resin or a thermosetting resin 9 spacer body

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 対向する2枚の電極基板の少なくとも片方に液晶排出口を設けたシール材を配置し、上記電極基板に液晶を必要量以上滴下した後、上記2枚の電極基板を真空中で貼合わせて加圧し、余分な液晶を上記液晶排出口より排出させることを特徴とする液晶表示素子の製造方法。 1. A place seal material provided a liquid crystal outlet at least one of the two opposed electrode substrates, was added dropwise over a necessary amount of liquid to the electrode substrate, in a vacuum electrode substrate two above method of manufacturing a liquid crystal display device in which lamination by pressurizing, the excess liquid and wherein the discharging from the liquid crystal outlet.
  2. 【請求項2】 対向する2枚の電極基板の少なくとも片方に樹脂をコーティングした接着性スペーサを散布し、 2. A spraying the adhesive spacers coated with resin on at least one of the two opposed electrode substrates,
    これを加熱により電極基板に接着して固定させた後、液晶を滴下し真空中で前記2枚の電極基板を貼合わせることを特徴とする請求項1記載の液晶表示素子の製造方法。 After this and the bonded to the electrode substrate is fixed by heating, a method of manufacturing a liquid crystal display device according to claim 1, wherein the combining in vacuo dropwise crystal bonded to the two electrode substrates.
JP2226493A 1993-02-10 1993-02-10 Manufacture of liquid crystal display element Pending JPH06235925A (en)

Priority Applications (1)

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US6628365B1 (en) 2002-03-23 2003-09-30 Lg.Philips Lcd Co., Ltd. LCD with UV shielding part at dummy sealant region
US6642992B2 (en) 2000-11-08 2003-11-04 Lg.Philips Lcd Co., Ltd. Liquid crystal display panel and method of manufacturing the same
US6683670B2 (en) 2000-11-21 2004-01-27 Lg.Philips Lcd Co., Ltd. Liquid crystal display device utilizing spacers in both the seal and active regions and method of manufacturing the same
US6712883B2 (en) 2002-02-25 2004-03-30 Lg.Philips Lcd Co., Ltd. Apparatus and method for deaerating liquid crystal
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US6784970B2 (en) 2002-02-27 2004-08-31 Lg.Philips Lcd Co., Ltd. Method of fabricating LCD
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US6795154B2 (en) 2002-02-19 2004-09-21 Lg. Philips Lcd Co., Ltd. Apparatus for cutting liquid crystal display panels and cutting method using the same
US6803984B2 (en) 2002-02-25 2004-10-12 Lg.Philips Lcd Co., Ltd. Method and apparatus for manufacturing liquid crystal display device using serial production processes
US6805308B2 (en) 2002-02-22 2004-10-19 Lg. Philips Lcd Co., Ltd. Liquid crystal dispensing apparatus having controlling function of dropping amount caused by controlling tension of spring
US6811459B2 (en) 2002-03-15 2004-11-02 Lg. Philips Lcd Co., Ltd. Liquid crystal dispensing apparatus
US6815002B2 (en) 2002-03-25 2004-11-09 Lg. Philips Lcd Co., Ltd. Method for dispensing liquid crystal using plurality of liquid crystal dispensing devices
US6819391B2 (en) 2001-11-30 2004-11-16 Lg. Philips Lcd Co., Ltd. Liquid crystal display panel having dummy column spacer with opened portion
US6821176B2 (en) 2002-02-22 2004-11-23 Lg. Philips Lcd Co., Ltd. Apparatus and method for manufacturing liquid crystal display devices, method for using the apparatus, and device produced by the method
US6824023B2 (en) 2002-02-20 2004-11-30 Lg. Philips Lcd Co., Ltd. Liquid crystal dispensing apparatus
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US9963636B2 (en) 2013-02-12 2018-05-08 Dic Corporation Liquid crystal composition and liquid crystal display device using same
WO2014125564A1 (en) 2013-02-12 2014-08-21 Dic株式会社 Liquid crystal composition and liquid crystal display element using same
US9745513B2 (en) 2013-03-06 2017-08-29 Dic Corporation Nematic liquid crystal composition and liquid crystal display device using same
WO2014147792A1 (en) 2013-03-21 2014-09-25 Dic株式会社 Liquid crystal composition and liquid crystal display element using same
KR20150047618A (en) 2013-03-21 2015-05-04 디아이씨 가부시끼가이샤 Liquid crystal composition and liquid crystal display element using same
WO2014155534A1 (en) 2013-03-26 2014-10-02 Dic株式会社 Liquid crystal composition and liquid crystal display element using this composition
US9683170B2 (en) 2013-03-26 2017-06-20 Dic Corporation Liquid crystal composition and liquid crystal display device using the same
KR20150027272A (en) 2013-03-26 2015-03-11 디아이씨 가부시끼가이샤 Liquid crystal composition and liquid crystal display element using this composition
WO2014155531A1 (en) 2013-03-26 2014-10-02 Dic株式会社 Liquid crystal composition, and liquid crystal display element using same
KR20160039684A (en) 2013-09-20 2016-04-11 디아이씨 가부시끼가이샤 Liquid crystal display element and manufacturing method thereof
KR20160073982A (en) 2013-12-11 2016-06-27 디아이씨 가부시끼가이샤 Liquid crystal display element and method for producing same
KR20170021843A (en) 2014-09-05 2017-02-28 디아이씨 가부시끼가이샤 Liquid crystal composition and liquid crystal display element using same

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