JPH09258191A - Liquid crystal display - Google Patents
Liquid crystal displayInfo
- Publication number
- JPH09258191A JPH09258191A JP8061503A JP6150396A JPH09258191A JP H09258191 A JPH09258191 A JP H09258191A JP 8061503 A JP8061503 A JP 8061503A JP 6150396 A JP6150396 A JP 6150396A JP H09258191 A JPH09258191 A JP H09258191A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- plastic
- substrates
- substrate
- 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.)
- Withdrawn
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 31
- 239000000758 substrate Substances 0.000 claims abstract description 38
- 239000004033 plastic Substances 0.000 claims abstract description 26
- 229920003023 plastic Polymers 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 11
- 239000003566 sealing material Substances 0.000 claims abstract description 5
- 230000000704 physical effect Effects 0.000 abstract 1
- 239000004695 Polyether sulfone Substances 0.000 description 4
- 229920006393 polyether sulfone Polymers 0.000 description 4
- 210000002858 crystal cell Anatomy 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- -1 Polyethylene terephthalate Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001230 polyarylate Polymers 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
(57)【要約】
【課題】 ２枚のプラスチック基材間に液晶が封入され
てなる液晶表示体において、２枚の基板の縦、横方向の
物性の違いにより、液晶表示体そのものにソリや弛みが
発生し、作業効率や見栄えが悪くなる欠点がある。
【解決手段】 ２枚のプラスチック基材がシール材を介
して貼り合わされ、この２枚のプラスチック基板とシー
ル材により形成される空間内に液晶が封入された液晶表
示体において、この１枚のプラスチック基版が厚く、他
の１枚が薄く、かつ薄い方の基板の熱膨張率が厚い方の
熱膨張率より大きくする。
(57) Abstract: In a liquid crystal display body in which liquid crystal is sealed between two plastic substrates, the liquid crystal display body itself is warped due to the difference in the physical properties of the two substrates in the vertical and horizontal directions. There is a drawback that slack occurs, resulting in poor work efficiency and appearance. SOLUTION: In a liquid crystal display body in which two plastic base materials are pasted together via a sealing material, and a liquid crystal is sealed in a space formed by the two plastic substrates and the sealing material, the single plastic material is used. The base plate is thick, the other one is thin, and the coefficient of thermal expansion of the thinner substrate is made larger than that of the thicker one.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は液晶表示体に関す
る。TECHNICAL FIELD The present invention relates to a liquid crystal display.
【０００２】[0002]
【従来の技術】携帯情報機器に使用される表示体とし
て、その軽量性や割れない等の特徴からプラスチック基
材を用いた液晶表示体が用いられている。2. Description of the Related Art As a display used in portable information equipment, a liquid crystal display using a plastic base material is used because of its lightness and non-breakability.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
このような液晶表示体では、基材の剛性が劣たり、張り
合わせた２枚の基板で、縦、横方向の膨張率が異なるた
め液晶パネルにそりが発生し、作業性が満足できるもの
ではなかった。そして、これらの欠点を解決するため
に、プラスチック基材として厚い２枚の基板を用いるこ
とによりソリの発生を防いでいた。しかしこの方法では
軽さと、薄さを犠牲にするため満足できるものでなかっ
た。However, in such a conventional liquid crystal display body, the rigidity of the base material is poor, or the two substrates bonded together have different expansion coefficients in the vertical and horizontal directions, so that the liquid crystal panel is used. Swarf occurred and workability was not satisfactory. In order to solve these drawbacks, the use of two thick substrates as the plastic base material has prevented warpage. However, this method is not satisfactory because it sacrifices lightness and thinness.
【０００４】そこで本発明は、ソリの発生が無い液晶表
示体を提供することにある。Therefore, the present invention is to provide a liquid crystal display body free from warpage.
【０００５】[0005]
【課題を解決するための手段】請求項１記載の発明は、
２枚の透明電極付プラスチック基板をシール材を介して
貼り合わせ、このシール材と２枚の基板の作る空間に液
晶を封入した液晶パネルの両側に偏光板を貼った液晶表
示体において、１枚の基板は薄くし、他方の基板は厚く
し、かつ薄い方のプラスチック基板の熱膨張率が厚い方
の基板の熱膨張率より大きくした液晶表示体である。According to the first aspect of the present invention,
Two plastic substrates with transparent electrodes are pasted together with a sealant between them, and a liquid crystal panel in which liquid crystal is enclosed in the space created by the sealant and two substrates and polarizing plates are pasted on both sides The substrate is thin, the other substrate is thick, and the coefficient of thermal expansion of the thinner plastic substrate is larger than the coefficient of thermal expansion of the thicker substrate.
【０００６】これらのプラスチックの組み合わせとして
は次のような組み合わせが考えられるが、組み合わせと
してはこの他にも色々考えることができる。The following combinations can be considered as combinations of these plastics, but various combinations can be considered.
【０００７】 プラスチック（膨張率、×１０-5／℃） プラスチック（膨張率、×１０-5/℃ ） ポリエチレンテレフタレート（１０）＞ ポリエーテルスルホン（４．８） ポリメチルメタクリレート（８） ＞ ポリスルホン（５．５） ポリアリレート（６．２） ＞ ポリエーテルスルホン（４．８）Plastic (expansion coefficient, × 10 -5 / ° C) Plastic (expansion coefficient, × 10 -5 / ° C) Polyethylene terephthalate (10)> Polyethersulfone (4.8) Polymethylmethacrylate (8)> Polysulfone ( 5.5) Polyarylate (6.2)> Polyethersulfone (4.8)
【０００８】[0008]
【発明の実施の形態】本発明の液晶表示体の断面図を図
１に示すが図において、１は透明電極付厚めのプラスチ
ック基板を、２は透明電極付き薄めのプラスチック基板
を、３はシール材を、４は液晶を、５は配向膜を、６は
電極を、７は偏光板をそれぞれ示す。BEST MODE FOR CARRYING OUT THE INVENTION A sectional view of a liquid crystal display of the present invention is shown in FIG. 1, in which 1 is a thick plastic substrate with a transparent electrode, 2 is a thin plastic substrate with a transparent electrode, and 3 is a seal. Material, 4 is a liquid crystal, 5 is an alignment film, 6 is an electrode, and 7 is a polarizing plate.
【０００９】厚い方のプラスチック基板の熱膨張率を小
さくし、薄いプラスチックの熱膨張率を大きくし、図１
のような液晶表示体を組み立てることにより、厚い方の
プラスチック基板によりパネル全体の剛性をもたせる事
が出来、また薄い方のプラスチック基板はパネル作成後
室温に戻すと収縮し常に内側の力が働き、この力を厚い
方の基板で外側にひっぱているため常に張力が働き、薄
いプラスチック基板がたるむようなことはない。By increasing the coefficient of thermal expansion of the thicker plastic substrate and increasing the coefficient of thermal expansion of the thinner plastic substrate, as shown in FIG.
By assembling such a liquid crystal display body, it is possible to give the rigidity of the whole panel by the thicker plastic substrate, and the thinner plastic substrate shrinks when it is returned to room temperature after the panel is made, and the inner force always works, Since this force is pulled outward by the thicker substrate, tension always works, and the thin plastic substrate does not sag.
【００１０】[0010]
（実施例１）市販の３００ミクロンのポリエーテルスル
ホンにＩＴＯ電極をつけ一方の基板とし、他方の基板と
して市販のガスバリヤー膜付きフィルムＡＴ３５００
（藤森工業製、約１００ミクロンのポリアリレート系フ
イルム、電極付き）を選び液晶セルを組み立てた。セル
の組立方法を述べると以下の通りである。短冊状の電極
のついた２ｃｍ×５ｃｍの基板を用意し、この基板を洗
剤、純水で洗浄し、乾燥した後、この基板上に配向膜
（ＲＮ７９９、日本合成ゴム製）を、、回転数２０００
ｒｐｍで６０秒の条件でスピンコータにより塗布した。
配向膜塗布後１２０℃、２時間乾燥した後、組立後のラ
ビング方向がほぼ直行するようにラビング処理を行っ
た。(Example 1) A commercially available 300 micron polyether sulfone having ITO electrodes attached thereto was used as one substrate, and as the other substrate, a commercially available film with a gas barrier film AT3500 was used.
A liquid crystal cell was assembled by selecting (Fujimori Kogyo Co., Ltd., a polyarylate film of about 100 microns, with electrodes). The method of assembling the cell is as follows. Prepare a 2 cm x 5 cm substrate with strip-shaped electrodes, wash this substrate with detergent and pure water, and dry it. Then, align the orientation film (RN799, made by Japan Synthetic Rubber) on this substrate and rotate it. 2000
It was applied by a spin coater under the condition of 60 seconds at rpm.
After coating the alignment film and drying at 120 ° C. for 2 hours, rubbing treatment was performed so that the rubbing direction after assembly was substantially orthogonal.
【００１１】このようにして得られた基板の一方にシー
ル材（粒径６．３ミクロンのシリカ粒子を０．１５重量
パーセント含むエポキシ系接着材）をスクリーン印刷し
た。他方の基板上にギャップ材（粒径６．５ミクロンの
シリカ粒子）を散布した。このようにして得た２枚の基
板を張り合わせ、１２０℃で６時間乾燥、固化させ、液
晶セルとした。この液晶セルにＰ型液晶を注入し、セル
の両面に偏光板を変更軸が直行する様に張り合わせ液晶
表示体とした。A sealing material (epoxy adhesive containing 0.15 weight percent of silica particles having a particle size of 6.3 microns) was screen-printed on one side of the substrate thus obtained. A gap material (silica particles having a particle size of 6.5 microns) was dispersed on the other substrate. The two substrates thus obtained were stuck together, dried at 120 ° C. for 6 hours and solidified to obtain a liquid crystal cell. A P-type liquid crystal was injected into this liquid crystal cell, and polarizing plates were laminated on both sides of the cell so that the changed axes were perpendicular to each other to form a liquid crystal display.
【００１２】２枚の基板を張り合わせた後、パネルは薄
い基板がたるむことなく、厚い基板の平坦性によって平
坦性を保っていた。これに対して両面を薄い基板にした
従来の場合は、必ずどちらかそってしまった。After the two substrates were bonded together, the panel was kept flat by the flatness of the thick substrate without sagging of the thin substrate. On the other hand, in the conventional case where both sides are thin substrates, either one is always bent.
【００１３】（実施例２）市販のガスバリヤー膜付ポリ
エチレンフタレートフィルム（１００ミクロン厚のＰＥ
Ｔフィルム）とポリエーテルスルホン（３００ミクロン
厚）の２枚のプラスチック基材を用い、実施例１と同様
にして液晶表示体作成した。ＰＥＴフィルムにたるみ等
も無く十分満足できる液晶表示体が出来た。Example 2 Commercially available polyethylene phthalate film with a gas barrier film (PE of 100 micron thickness)
A liquid crystal display was prepared in the same manner as in Example 1 using two plastic substrates of T film) and polyether sulfone (thickness of 300 μm). A liquid crystal display that was sufficiently satisfactory was made without sagging in the PET film.
【００１４】[0014]
【発明の効果】以上述べたように本発明によれば、従来
と同じ製造方法により、そりやたるみ等の無い作業性に
優れた液晶表示体を得ることができる。又ガラス基板を
用いた液晶表示体に比べ軽いという特徴を有するため携
帯機器用ディスプレイとして好適であり、この液晶表示
体を組み込んだ携帯機器は非常に扱い易いものとなる。As described above, according to the present invention, it is possible to obtain a liquid crystal display having excellent workability without warping or sagging by the same manufacturing method as the conventional one. Further, since it has a feature that it is lighter than a liquid crystal display body using a glass substrate, it is suitable as a display for portable equipment, and a portable equipment incorporating this liquid crystal display body becomes very easy to handle.
【図１】 本発明の液晶表示体の側面図を示す。FIG. 1 shows a side view of a liquid crystal display of the present invention.
【符号の説明】 １ 透明電極付き厚めのプラスチック基板 ２ 透明電極付き薄めのプラスチック基板 ３ シール材 ４ 液晶 ５ 配向膜 ６ 電極 ７ 偏光板[Explanation of symbols] 1 thick plastic substrate with transparent electrode 2 thin plastic substrate with transparent electrode 3 sealant 4 liquid crystal 5 alignment film 6 electrode 7 polarizing plate
Claims (1)
ール材を介して貼り合わせ、該シール材と２枚の基板で
囲まれる空間に液晶を封入した液晶パネルの両側に偏光
板を貼った液晶表示体において、一方のプラスチック基
材を厚くし、他方のプラスチック基材を薄くし、かつ薄
いプラスチック基材の熱膨張率が厚いプラスチック基材
の熱膨張率より大きいことを特徴とする液晶表示体。1. Two plastic substrates with transparent electrodes are bonded together via a sealing material, and polarizing plates are bonded on both sides of a liquid crystal panel in which liquid crystal is enclosed in a space surrounded by the sealing material and two substrates. In a liquid crystal display, one plastic base material is thickened, the other plastic base material is thinned, and the thermal expansion coefficient of the thin plastic base material is larger than that of the thick plastic base material. body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8061503A JPH09258191A (en) | 1996-03-18 | 1996-03-18 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8061503A JPH09258191A (en) | 1996-03-18 | 1996-03-18 | Liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09258191A true JPH09258191A (en) | 1997-10-03 |
Family
ID=13172971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8061503A Withdrawn JPH09258191A (en) | 1996-03-18 | 1996-03-18 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09258191A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004086127A1 (en) * | 2003-03-25 | 2004-10-07 | Sanyo Electric Co. Ltd. | Stereoscopic picture display device and method of producing the same |
| CN100378509C (en) * | 2003-03-25 | 2008-04-02 | 三洋电机株式会社 | Stereoscopic image display device and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6056023U (en) * | 1983-09-26 | 1985-04-19 | 日東電工株式会社 | lcd display cell |
| JPS6059221U (en) * | 1983-09-29 | 1985-04-24 | 日東電工株式会社 | lcd display cell |
| JPS622020U (en) * | 1985-06-19 | 1987-01-08 | ||
| JPH01200328A (en) * | 1988-02-05 | 1989-08-11 | Seiko Epson Corp | Manufacture of liquid crystal display device |
| JPH07301789A (en) * | 1994-05-06 | 1995-11-14 | Casio Comput Co Ltd | Liquid crystal display device and manufacturing method thereof |
-
1996
- 1996-03-18 JP JP8061503A patent/JPH09258191A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6056023U (en) * | 1983-09-26 | 1985-04-19 | 日東電工株式会社 | lcd display cell |
| JPS6059221U (en) * | 1983-09-29 | 1985-04-24 | 日東電工株式会社 | lcd display cell |
| JPS622020U (en) * | 1985-06-19 | 1987-01-08 | ||
| JPH01200328A (en) * | 1988-02-05 | 1989-08-11 | Seiko Epson Corp | Manufacture of liquid crystal display device |
| JPH07301789A (en) * | 1994-05-06 | 1995-11-14 | Casio Comput Co Ltd | Liquid crystal display device and manufacturing method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004086127A1 (en) * | 2003-03-25 | 2004-10-07 | Sanyo Electric Co. Ltd. | Stereoscopic picture display device and method of producing the same |
| CN100378509C (en) * | 2003-03-25 | 2008-04-02 | 三洋电机株式会社 | Stereoscopic image display device and manufacturing method thereof |
| US7365809B2 (en) | 2003-03-25 | 2008-04-29 | Sanyo Electric Co., Ltd. | Stereoscopic image display device having negative pressure regions within |
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