JPS58184932A - Production of liquid crystal display element - Google Patents
Production of liquid crystal display elementInfo
- Publication number
- JPS58184932A JPS58184932A JP57067304A JP6730482A JPS58184932A JP S58184932 A JPS58184932 A JP S58184932A JP 57067304 A JP57067304 A JP 57067304A JP 6730482 A JP6730482 A JP 6730482A JP S58184932 A JPS58184932 A JP S58184932A
- Authority
- JP
- Japan
- Prior art keywords
- electrode substrate
- liquid crystal
- crystal display
- display element
- reflection plate
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Liquid Crystal (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は液晶表示素子、特に反射型液晶表示素子の製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a liquid crystal display element, particularly a reflective liquid crystal display element.
従来の液晶表示素子は、第１図に示すように、電極が形
成された２枚の上下ガラス電極基板１．２の周囲をシー
ル材３でシールし、内部憂こ液晶物質４を封入してなる
。そして、特にツィステッド・ネマチック獄の液晶表示
素子では、前記上下ガラス電極基板１．２の外側にそれ
ぞれ偏光板５．６を貼り合せ、更に偏光板６の外側に反
射板７を貼り合せて反射型を形成している。As shown in FIG. 1, a conventional liquid crystal display element has two upper and lower glass electrode substrates 1.2 on which electrodes are formed, the peripheries of which are sealed with a sealing material 3, and an internal liquid crystal material 4 is sealed. Become. In particular, in a twisted nematic liquid crystal display element, polarizing plates 5.6 are bonded to the outside of the upper and lower glass electrode substrates 1.2, respectively, and a reflective plate 7 is bonded to the outside of the polarizing plate 6 to form a reflective type. is formed.
ところで近年、１１２ｍφこ示すように、１ｌ１１図に
示す上下ガラス電極基板ｌ、２に代えてプラスチック電
極基板１０．１１、例えば２軸延伸のポリエチレンテレ
フタレートフィルム（以下ＰＢＴフィルムという）を用
いた液晶表示素子が発表されている。しかしながら、こ
の構造は単に基板の材質を変えたのみであるので、部品
点数および製作工程は変らず、コストダウ／を図ること
ができないＯ
そこで、本願出願人は、第３図に示すように偏光板に電
極基板機能をもたせた上下偏光電極基板１２．１３から
なる液晶表示素子を出願中である。By the way, in recent years, a liquid crystal display element with a diameter of 112 m as shown here uses a plastic electrode substrate 10.11, for example, a biaxially stretched polyethylene terephthalate film (hereinafter referred to as PBT film), in place of the upper and lower glass electrode substrates 1 and 2 shown in FIG. has been announced. However, since this structure simply changes the material of the substrate, the number of parts and the manufacturing process remain unchanged, making it impossible to reduce costs. Therefore, the applicant proposed a polarizing plate as shown in Figure 3. We are currently applying for a liquid crystal display element consisting of upper and lower polarizing electrode substrates 12 and 13 which have an electrode substrate function.
前記上下偏光電極基板１２．１３は、第４図に示すよう
に偏光子１４を２枚の−軸延伸ＰＥＴフイルムの支持体
１５．１５でサノドイツチにした偏光板構造よりなる。The upper and lower polarizing electrode substrates 12.13 have a polarizing plate structure in which a polarizer 14 is sandwiched between two supports 15.15 of -axis stretched PET films, as shown in FIG.
このような上下偏光電極基板１２．１３の表面にそれぞ
れ透明導電膜（ＩＴＯ電極）を形成し、エツチングを行
なうことにより必要な電極パターン１６．１７を形成す
る。そしで、従来の液晶表示素子と同様の液晶分子の配
向処理（例えばラビノグ蔽こよる）を行なう。次にシー
ル材３により上下偏光電極基板１２．１３を貼り合せた
後、図示しない封入口より液晶４を封入する。次に反射
板７を不偏光電極基板１３に貼り合せて反射型の液晶表
示素子を構成する。Transparent conductive films (ITO electrodes) are formed on the surfaces of the upper and lower polarizing electrode substrates 12 and 13, respectively, and etched to form necessary electrode patterns 16 and 17. Then, the liquid crystal molecules are subjected to the same alignment treatment (for example, Rabinog alignment) as in conventional liquid crystal display elements. Next, after the upper and lower polarizing electrode substrates 12 and 13 are bonded together using the sealing material 3, the liquid crystal 4 is sealed through a filling opening (not shown). Next, the reflective plate 7 is bonded to the non-polarizing electrode substrate 13 to form a reflective liquid crystal display element.
このように、前記反射板７は液晶表示素子を組立た後に
１個ずつ貼り合せるので、作業性が非常ｌこ悪いという
欠点を有する。As described above, since the reflector plate 7 is attached one by one after the liquid crystal display elements are assembled, it has a drawback that the workability is very poor.
本発明の目的は、製造工程の簡単化を図ることができる
液晶表示素子の製造方法を提供することにある。
・１１
以下、本発明の一実施例を第５図により説明する。第５
図は不偏光電極基板の素材を示す。まず−軸延伸ＰＥＴ
フィルム２１に偏光子２２を貼り付け、この偏光子２２
上に接着剤を介してＡｅ製の反射板２３をラミネートし
、その外側に耐薬品性を高めるために支持体２４を貼り
合せる。これにより不偏光電極基板の素材２０が得られ
る。An object of the present invention is to provide a method for manufacturing a liquid crystal display element that can simplify the manufacturing process.
・11 Hereinafter, one embodiment of the present invention will be explained with reference to FIG. Fifth
The figure shows the material of the non-polarizing electrode substrate. First - axially stretched PET
A polarizer 22 is pasted on the film 21, and this polarizer 22
A reflective plate 23 made of Ae is laminated thereon with an adhesive, and a support 24 is bonded to the outside of the reflective plate 23 to improve chemical resistance. As a result, a material 20 for a non-polarized electrode substrate is obtained.
この不偏光電極基板の素材を所定形状に切断して多数の
不偏光′−極基板を形成する。そして、この反射板２３
付きの不偏光電極基板と第１図に示す上ガラス電極基板
１または第２図に示す上プラスチック電極基板１０もし
くは第３図に示す上偏光電極基板１２とをシール材３で
接着して素子を構成する。このように、反射板２３付き
の不偏光電極基板を用いると、素子組立後に一々反射板
を貼り合せる必要がないので、製造工程の簡略化が図れ
る。また偏光子２２と反射板２３間の距離が小さくなる
ので、光の吸収が少なくより明るい表示が得られる。This material for the non-polarizing electrode substrate is cut into predetermined shapes to form a large number of non-polarizing electrode substrates. And this reflector 23
The device is assembled by bonding the non-polarizing electrode substrate with a sealing material 3 and the upper glass electrode substrate 1 shown in FIG. 1, the upper plastic electrode substrate 10 shown in FIG. 2, or the upper polarizing electrode substrate 12 shown in FIG. Configure. In this way, when the non-polarizing electrode substrate with the reflective plate 23 is used, it is not necessary to attach the reflective plate one by one after assembling the device, so that the manufacturing process can be simplified. Furthermore, since the distance between the polarizer 22 and the reflection plate 23 is reduced, less light is absorbed and a brighter display can be obtained.
第６図は本発明の−の実施例を示す。本実施例は前記実
施例の偏光子２２と反射板２３間に一軸延伸ＰＥＴフィ
ルム２５を介在させてなる。このように形成しても鹸記
実施例と同等の効果が得られる。また本実施例の場合は
、−軸延伸Ｐ Ｅ ’Ｉ’フィルム２５の反射板２３面
一表面を拡散面にすることにより、Ａｅ板を用いずに蒸
着により反射板２４を形成することができ、無視光性反
射下偏光電極基板とする場合に有効である。この際、−
軸延伸ＰＥＴフィルム２５と反射板２３間に接着剤など
は必要ないことはいうまでもない。FIG. 6 shows a - embodiment of the present invention. In this example, a uniaxially stretched PET film 25 is interposed between the polarizer 22 and the reflector 23 of the previous example. Even if formed in this way, the same effect as the embodiment described above can be obtained. In addition, in the case of this embodiment, by making one surface of the reflection plate 23 of the -axis stretched P E 'I' film 25 a diffusing surface, the reflection plate 24 can be formed by vapor deposition without using an Ae plate. This is effective when used as a polarizing electrode substrate under negligible reflection. At this time, -
Needless to say, no adhesive or the like is required between the axially stretched PET film 25 and the reflective plate 23.
なお、前記各実施例においては、支持体２４を設けた場
合について説明したが、偏光子２２は一軸延伸Ｐ Ｅ
Ｔフィルム２１と反射板２３間に挟持された形ちとなっ
ているので、特に支持体２４を設けなくてもよい。支持
体２４を設ける場合は、この支持体２４の材質は畿定さ
れないので、二輪延伸ＰＥＴフィルムを用いるとより安
価にできる。In each of the above embodiments, the case where the support body 24 was provided was explained, but the polarizer 22 was formed using a uniaxially stretched PE film.
Since it is sandwiched between the T film 21 and the reflection plate 23, there is no need to provide a support 24 in particular. When the support body 24 is provided, the material of the support body 24 is not determined, so it can be made cheaper if a two-wheeled stretched PET film is used.
また−軸延伸ＰＥＴフィルム２１および支持体２４の厚
さは、素子製造工程中の熱により変形しない厚さであれ
ばよく、特に限定されない。The thicknesses of the axially stretched PET film 21 and the support 24 are not particularly limited as long as they do not deform due to heat during the device manufacturing process.
以上の説明から明らかな如く、本発明によれば、素ｆ製
造工程の簡略化が図れると共（こ、表示品質が向トする
。As is clear from the above description, according to the present invention, the element manufacturing process can be simplified, and display quality can be improved.
第１図は従来のガラス電極基板を用いた液晶表示素子を
示し、（ａｌは外観斜視図、（ｂｌは断面図、第２図は
従来のプラスチック電極基板を用いた液晶表示素子の断
面図、第３図は本発明の対象とする偏光電極基板を用い
た液晶表示素子の断面図、第４図は第３図の一光電・極
基板の構成を示す説明図、第５図は本発明の方法によっ
て得られた不偏光電極基板の一実施例を示し、（ａ）は
断面説明図、（ｂｌは斜視説明図、第６図は本発明の方
法憂こまって得られた不偏光電極基板の他の実施例を示
す断面説明図である。
１・・・上ガラス電極基板、 ３・・・シール材、
４・・・液晶、 １２・・・上偏光−極
基板、２０・・・不偏光電極基板素材、 ２１・・・
−軸延伸ＰＥＴフィルム、 ２２・・・偏光子、
２３−反射板。
第１図
第２図
第３図
第４図
第５図
（ｂ）
第６．・１図
□・−FIG. 1 shows a liquid crystal display element using a conventional glass electrode substrate, (al is an external perspective view, (bl is a sectional view, and FIG. 2 is a sectional view of a liquid crystal display element using a conventional plastic electrode substrate. FIG. 3 is a sectional view of a liquid crystal display device using a polarizing electrode substrate which is the subject of the present invention, FIG. An example of a non-polarized electrode substrate obtained by the method is shown, (a) is a cross-sectional explanatory view, (bl is a perspective explanatory view, and FIG. 6 is an example of a non-polarized electrode substrate obtained by the method of the present invention. It is a sectional explanatory view showing other examples. 1... Upper glass electrode substrate, 3... Seal material,
4...Liquid crystal, 12...Upper polarization-polar substrate, 20...Non-polarization electrode substrate material, 21...
- axially stretched PET film, 22... polarizer,
23-Reflector. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 (b) 6.・Figure 1 □・-
Claims (1)
人してなる液晶表示素子の製造方法において、前記下電
極基板は、−軸延伸フイルムに偏光子を貼り合せ、更に
この偏光子上に直接反射板を一体に設けるか、または−
軸延伸フィルムを介して反射板を一体に設けて反射板付
きの下偏光電極基板となし、その後この反射板付きの下
偏光電極基板と前記上電極基板をシール材で接着するこ
とを特徴とする液晶表示素子の製造方法。 ２、−軸延伸フイルムは、−軸延伸ポリエチレンテレフ
タレートフィルムよりなることを特徴とする液晶表示素
子の製造方法。[Claims] l Upper and lower electrode substrates are adhered with a sealant, and a liquid crystal is placed inside.
In the method for manufacturing a liquid crystal display element, the lower electrode substrate is formed by bonding a polarizer to an axially stretched film and further integrally providing a reflecting plate directly on the polarizer, or-
The method is characterized in that a reflecting plate is integrally provided via an axially stretched film to form a lower polarizing electrode substrate with a reflecting plate, and then the lower polarizing electrode substrate with a reflecting plate and the upper electrode substrate are bonded with a sealing material. A method for manufacturing a liquid crystal display element. 2. A method for manufacturing a liquid crystal display element, wherein the -axially stretched film is a -axially stretched polyethylene terephthalate film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57067304A JPS58184932A (en) | 1982-04-23 | 1982-04-23 | Production of liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57067304A JPS58184932A (en) | 1982-04-23 | 1982-04-23 | Production of liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58184932A true JPS58184932A (en) | 1983-10-28 |
Family
ID=13341130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57067304A Pending JPS58184932A (en) | 1982-04-23 | 1982-04-23 | Production of liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58184932A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937529A (en) * | 1982-08-27 | 1984-03-01 | Hitachi Ltd | Liquid crystal display element |
| JPS5937528A (en) * | 1982-08-27 | 1984-03-01 | Hitachi Ltd | Liquid crystal display element |
| JPS5952217A (en) * | 1982-09-18 | 1984-03-26 | Nitto Electric Ind Co Ltd | Reflective polarizing plate |
-
1982
- 1982-04-23 JP JP57067304A patent/JPS58184932A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5937529A (en) * | 1982-08-27 | 1984-03-01 | Hitachi Ltd | Liquid crystal display element |
| JPS5937528A (en) * | 1982-08-27 | 1984-03-01 | Hitachi Ltd | Liquid crystal display element |
| JPS5952217A (en) * | 1982-09-18 | 1984-03-26 | Nitto Electric Ind Co Ltd | Reflective polarizing plate |
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