JPS6326620A - Manufacture of liquid crystal element - Google Patents
Manufacture of liquid crystal elementInfo
- Publication number
- JPS6326620A JPS6326620A JP17103986A JP17103986A JPS6326620A JP S6326620 A JPS6326620 A JP S6326620A JP 17103986 A JP17103986 A JP 17103986A JP 17103986 A JP17103986 A JP 17103986A JP S6326620 A JPS6326620 A JP S6326620A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal element
- injection
- pressure
- injected
- 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 67
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 238000002347 injection Methods 0.000 claims abstract description 15
- 239000007924 injection Substances 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- -1 biphenyl ester Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005621 ferroelectricity Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
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
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は液晶素子の製造方法に関し、特に液晶の注入方
法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a liquid crystal device, and more particularly to a method for injecting liquid crystal.
従来、液晶を２枚の基板間に注入する方法として、目的
とする液晶素子のセル厚とほぼ同径の球や円柱状粒子を
一方の基板上に散布した後、両基板を接着し、注入゛の
ため一部切り欠け（注入口）を設けた空セルを作り、次
に、液晶を空セル内に充填する為、セル内（外）部を真
空状態としてから液晶で注入口を完全に覆い、液晶素子
外部（外気）の圧力を一度に大気圧に戻して液晶注入を
行なっていた。Conventionally, the method of injecting liquid crystal between two substrates is to scatter spheres or cylindrical particles with a diameter approximately the same as the cell thickness of the desired liquid crystal element onto one substrate, then glue the two substrates together, and then inject the liquid crystal. Therefore, an empty cell is made with a partial notch (inlet), and in order to fill the empty cell with liquid crystal, the inside (outside) of the cell is evacuated, and the inlet is completely filled with liquid crystal. The liquid crystal was injected by covering the liquid crystal element and returning the pressure outside the liquid crystal element (outside air) to atmospheric pressure all at once.
しかし、前述の従来注入方法では、液晶素子外部（外気
〕の圧力を一度に大気圧に戻すため、液晶素子内部と外
気との間に急激にしかも大きな圧力差を生ずるため、素
子内の液晶の流入と、注入口からの液晶の補充のバラン
スがくずれ、素子内で液晶切れを生じ、やがて液晶切れ
を生じたところが気泡となって残る。これは特にセル厚
が薄いほど著しいという問題点を生ずる。However, in the conventional injection method described above, the pressure outside the liquid crystal element (outside air) is returned to atmospheric pressure at once, which creates a sudden and large pressure difference between the inside of the liquid crystal element and the outside air. The balance between the inflow and liquid crystal replenishment from the injection port is disrupted, causing liquid crystal breakage within the device, and eventually bubbles remain in the area where the liquid crystal breakage occurred.This problem becomes particularly severe as the cell thickness becomes thinner. .
本発明はこのような問題点を解決するもので、その目的
とするところは、液晶素子の品質の向上及び注入による
歩留シの向上のための液晶素子の製造方法を提供すると
ころにある。The present invention is intended to solve these problems, and its purpose is to provide a method for manufacturing a liquid crystal element that improves the quality of the liquid crystal element and improves the yield by injection.
本発明の液晶素子の製造方法は、２枚の基板間に、液晶
を注入してなる液晶素子に於いて、前記液晶の注入が、
真空中で液晶素子を減圧し、液晶で液晶素子注入口を完
全に覆った後、液晶素子内部と外気との圧力差を徐々に
拡げていくことにより液晶注入したことを特徴とする。The method for manufacturing a liquid crystal element of the present invention provides a liquid crystal element in which liquid crystal is injected between two substrates, in which the injection of the liquid crystal:
The liquid crystal element is depressurized in a vacuum, the liquid crystal element injection port is completely covered with liquid crystal, and then the liquid crystal is injected by gradually increasing the pressure difference between the inside of the liquid crystal element and the outside air.
［作用］
本発明の上記構成によれば、液晶素子内部と外気との圧
力差を徐々に拡げる為、液晶素子内の液晶の流入速度を
コントロールでき、液晶素子内への気泡の発生が防止で
きる。[Function] According to the above configuration of the present invention, since the pressure difference between the inside of the liquid crystal element and the outside air is gradually expanded, the speed of inflow of liquid crystal into the liquid crystal element can be controlled, and the generation of air bubbles into the liquid crystal element can be prevented. .
パターニングした電極を有する一方の基板に、液晶を一
方向に揃えるための配向処理（ラビング）を怖こし、も
う一方のパターニングした電極を有する基板に約２μｍ
ｒｆｒのセルギャップコントロール材を均一に散布し、
エポキシ等からなる接着剤により一部液晶注入口が設け
られた２枚の基板を固定した空セルをおよそＡ−４版す
、イズの大きさで作成し、これに液晶として強誘電性を
示すビフェニルエステル系の液晶を用い等方性液相であ
る約９０℃で真空注入を行なった。尚この時の注入条件
及び、気泡の出方を第１表に示した。更に比較のため、
従来方法で注入した時の状況も示した。One substrate with patterned electrodes is subjected to alignment treatment (rubbing) to align the liquid crystal in one direction, and the other substrate with patterned electrodes is coated with a thickness of approximately 2 μm.
Spread rfr cell gap control material evenly,
An empty cell with a size of approximately A-4 size is made by fixing two substrates with a liquid crystal inlet partially provided with an adhesive made of epoxy, etc., and it exhibits ferroelectricity as a liquid crystal. Vacuum injection was performed using a biphenyl ester liquid crystal at about 90° C., which is an isotropic liquid phase. Table 1 shows the injection conditions and the manner in which bubbles appeared. Furthermore, for comparison,
The situation when injected using the conventional method is also shown.
第１表から明らかの如く、本発明方法により注入したセ
ルには気泡の発生はみられず、従来例においては、注入
口からパネル長さの約発のところに気泡が集中して発生
していた。又、パネルサイズ。As is clear from Table 1, no air bubbles were observed in the cells injected by the method of the present invention, whereas in the conventional example, air bubbles were concentrated at about the length of the panel from the injection port. Ta. Also, panel size.
セル厚等により多少違いはあるが、セルサイズおよそ、
５ ａｎ ０以上、セル厚４μ鴨以下位の液晶素子にお
いて本発明製造方法は特に効果が認められた。There are some differences depending on cell thickness, etc., but the cell size is approximately:
The manufacturing method of the present invention was particularly effective for liquid crystal elements with a cell thickness of 5 an 0 or more and a cell thickness of 4 μm or less.
第１表
〔発明の効果〕
以上述べたように、本発明製造方法によれば、セル厚の
薄い、大きな液晶素子への液晶の注入が確実に行なわれ
るため、液晶素子の品質向上、歩留り向上という効果を
有するものであり、特に大型表示素子、電子シャッター
素子等への応用が可能なものである。Table 1 [Effects of the Invention] As described above, according to the manufacturing method of the present invention, since liquid crystal can be reliably injected into a large liquid crystal element with a thin cell thickness, the quality and yield of the liquid crystal element can be improved. This effect is particularly applicable to large-sized display elements, electronic shutter elements, and the like.
Claims (1)
法に於いて、前記液晶の注入が、真空中で液晶素子を減
圧し、液晶で液晶素子注入口を完全に覆つた後、液晶素
子内部と外気との圧力差を徐々に拡げていくことにより
液晶注入したことを特徴とする液晶素子の製造方法。In a method for manufacturing a liquid crystal element in which liquid crystal is injected between two substrates, the liquid crystal is injected, the liquid crystal element is depressurized in a vacuum, and the liquid crystal element injection port is completely covered with the liquid crystal, and then, A method for manufacturing a liquid crystal element, characterized in that liquid crystal is injected by gradually increasing the pressure difference between the inside of the liquid crystal element and outside air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17103986A JPS6326620A (en) | 1986-07-21 | 1986-07-21 | Manufacture of liquid crystal element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17103986A JPS6326620A (en) | 1986-07-21 | 1986-07-21 | Manufacture of liquid crystal element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6326620A true JPS6326620A (en) | 1988-02-04 |
Family
ID=15915954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17103986A Pending JPS6326620A (en) | 1986-07-21 | 1986-07-21 | Manufacture of liquid crystal element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6326620A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5913788U (en) * | 1982-07-19 | 1984-01-27 | トヨタ自動車株式会社 | Eye union joint structure |
| US6095203A (en) * | 1996-09-12 | 2000-08-01 | Sharp Kabushiki Kaisha | Method and apparatus for injecting liquid crystal material |
| DE102016009202A1 (en) | 2015-08-04 | 2017-02-09 | Fanuc Corporation | Injection molding machine comprising mold turning device |
-
1986
- 1986-07-21 JP JP17103986A patent/JPS6326620A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5913788U (en) * | 1982-07-19 | 1984-01-27 | トヨタ自動車株式会社 | Eye union joint structure |
| JPS6326620Y2 (en) * | 1982-07-19 | 1988-07-19 | ||
| US6095203A (en) * | 1996-09-12 | 2000-08-01 | Sharp Kabushiki Kaisha | Method and apparatus for injecting liquid crystal material |
| DE102016009202A1 (en) | 2015-08-04 | 2017-02-09 | Fanuc Corporation | Injection molding machine comprising mold turning device |
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