JPH01120532A - Liquid crystal element and its production - Google Patents
Liquid crystal element and its productionInfo
- Publication number
- JPH01120532A JPH01120532A JP27877087A JP27877087A JPH01120532A JP H01120532 A JPH01120532 A JP H01120532A JP 27877087 A JP27877087 A JP 27877087A JP 27877087 A JP27877087 A JP 27877087A JP H01120532 A JPH01120532 A JP H01120532A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- substrate
- crystal element
- particles
- substrates
- 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 44
- 238000004519 manufacturing process Methods 0.000 title claims description 18
- 239000000758 substrate Substances 0.000 claims abstract description 41
- 239000002245 particle Substances 0.000 claims abstract description 28
- 239000012815 thermoplastic material Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 239000011521 glass Substances 0.000 abstract description 9
- 229920005989 resin Polymers 0.000 abstract description 7
- 239000011347 resin Substances 0.000 abstract description 7
- 229920001187 thermosetting polymer Polymers 0.000 abstract description 5
- 210000004027 cell Anatomy 0.000 abstract description 4
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 abstract description 3
- 210000002858 crystal cell Anatomy 0.000 abstract description 2
- 239000000565 sealant Substances 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000035807 sensation Effects 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 6
- 230000003746 surface roughness Effects 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 238000004040 coloring Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 206010027339 Menstruation irregular Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
Landscapes
- 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、屈折率異方性とギャップとの関係から生じる
表示部の着色が少なくかつ視角依存性の少ない液晶素子
とその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a liquid crystal element whose display area is less colored due to the relationship between refractive index anisotropy and gap and has less viewing angle dependence, and a method for manufacturing the same.
「従来の技術」
第５図は、従来の液晶素子の要部を示すものである。こ
の液晶素子は、液晶層ｌか透明電極２と配向膜３を備え
ろ２枚のガラス基板４．４でザンドイッチされ、その外
周部がシール材５で封着されてなるもので、 ガラス基
板４．４間のギャップはスペーサ６によって規制されて
いる。"Prior Art" FIG. 5 shows the main parts of a conventional liquid crystal element. This liquid crystal element includes a liquid crystal layer 1, a transparent electrode 2, and an alignment film 3, sandwiched between two glass substrates 4, 4, and the outer periphery of which is sealed with a sealant 5. .4 is regulated by a spacer 6.
この褌晶素子にあっては、屈折率異方性とギャップとの
関係から生じる表示部の着色を緩和すると共に視角を拡
大するために、一方のガラス基板４の内面に微細な凹凸
７が形成されている。In this loincloth crystal element, fine irregularities 7 are formed on the inner surface of one glass substrate 4 in order to alleviate the coloring of the display area caused by the relationship between the refractive index anisotropy and the gap and to expand the viewing angle. has been done.
この液晶素子の凹凸７は、ガラス基板４をフッ酸などに
より化学的にエツチングしたり、機械的に研削すること
によって形成されていた。The unevenness 7 of this liquid crystal element was formed by chemically etching the glass substrate 4 with hydrofluoric acid or the like or mechanically grinding it.
「発明の解決しようとする問題点」
上記従来の液晶素子にあっては、ガラス基板４に設けら
れた凹凸７が、高低差や周期が不規則で、しかも立ち上
がりが急で角が鋭角なものとなるため、表示部の着色を
十分緩和できず、また視角を十分拡大できない不満があ
った。"Problems to be Solved by the Invention" In the above-mentioned conventional liquid crystal element, the unevenness 7 provided on the glass substrate 4 has an irregular height difference and irregular period, and also has a steep rise and an acute angle. Therefore, there were complaints that the coloring of the display section could not be sufficiently alleviated and the viewing angle could not be sufficiently expanded.
また、基板表面をフッ酸エツチングあるいは機械研削し
て凹凸を形成する上記従来の製造方法にあっては、基板
の表面処理に多くの工程が必要となり、製造工程の管理
が繁雑である問題があった。In addition, the conventional manufacturing method described above, in which unevenness is formed by etching the substrate surface with hydrofluoric acid or by mechanical grinding, requires many steps for surface treatment of the substrate, and there is a problem in that the management of the manufacturing process is complicated. Ta.
「問題点を解決するための手段」
第１発明の液晶素子は、熱可塑性を有する物質あるいは
加熱によって一時的に流動性を示しその後硬化する物質
からなる多数の凸部が基板の内面側に設けられたもので
ある。"Means for Solving the Problems" The liquid crystal element of the first invention has a large number of convex portions on the inner surface of the substrate made of a thermoplastic material or a material that temporarily exhibits fluidity when heated and then hardens. It is something that was given.
凸部は、熱可塑性物質あるいは加熱によって一時的に流
動性を示しその後硬化する物質によって形成されている
。また、この凸部をなす物質は、凸部が接する層との密
着性の良いものを用いることが望ましい。The convex portion is formed of a thermoplastic material or a material that temporarily exhibits fluidity when heated and then hardens. Furthermore, it is desirable to use a material that forms the convex portions and has good adhesion to the layer with which the convex portions are in contact.
熱可塑性物質としては、メタクリル樹脂、ポリカーボネ
ート等の熱可塑性樹脂やガーラスなどを利用できる。ま
た用いられる熱可塑性物質は、凸部よりも基板側の部分
に熱的に悪影響を与えない程度の温度で可塑化し、かつ
製造時凸部を形成した後に加えられる熱によって変形し
ない程度の耐熱性を有するものであることが望ましい。As the thermoplastic material, thermoplastic resins such as methacrylic resin and polycarbonate, glass, etc. can be used. In addition, the thermoplastic material used is plasticized at a temperature that does not adversely affect the part closer to the substrate than the convex part, and has a heat resistance that does not deform due to the heat applied after the convex part is formed during manufacturing. It is desirable that the
また、加熱によって一時的に流動性を示しその後硬化す
る物質としては、エポキシ樹脂等の熱硬化性樹脂を挙げ
ることができる。熱硬化性樹脂を用いる場合、樹脂は凸
部よりも基板側の部分に熱的に悪影響を与えない程度の
温度で流動化しかつ硬化するものでなければならない。In addition, examples of substances that temporarily exhibit fluidity and then harden when heated include thermosetting resins such as epoxy resins. When using a thermosetting resin, the resin must be fluidized and hardened at a temperature that does not adversely affect thermally the portion closer to the substrate than the convex portion.
この加熱によって一時的に流動性を示しその後硬化する
物質によって凸部が形成される場合、凸部は硬化した状
態の物質によって形成される。When the protrusions are formed by a material that temporarily exhibits fluidity and then hardens due to this heating, the protrusions are formed by the material in a hardened state.
上記のような物質によって形成される多数の凸部は、
その最も突出した部分の間隔が１００μｍ程度となるよ
うに形成されることが望ましいと思われる。 また、凸
部の高さは２〜５μ肩程度であることが望ましいと思わ
れる。The many convex parts formed by the above substances are
It is considered desirable that the distance between the most protruding portions be approximately 100 μm. Further, it is considered desirable that the height of the convex portion is about 2 to 5 μm.
この凸部は、基板の内面側に設けられておれば良く、基
板上に直接設けられても、透明電極あるいは配向膜上に
設けられても良い。The convex portion may be provided on the inner surface of the substrate, and may be provided directly on the substrate, or may be provided on the transparent electrode or alignment film.
第１発明の液晶素子では、基板の内面側に設けられた多
数の凸部によって、視角が拡大される。In the liquid crystal element of the first invention, the viewing angle is enlarged by the large number of convex portions provided on the inner surface of the substrate.
また液晶素子のセルギャップが凸部によって微視的に変
化するので液晶分子の屈折率異方性とセルギャップの関
係から生じる着色が緩和される。Furthermore, since the cell gap of the liquid crystal element is microscopically changed by the convex portion, coloring caused by the relationship between the refractive index anisotropy of the liquid crystal molecules and the cell gap is alleviated.
第２発明の製造方法は、上記第１発明の液晶素子を製造
するのに好適な方法である。この製造方法によれば、熱
可塑性を有する物質あるいは加熱によって一時的に流動
性を示しその、後硬化する物質からなる粒子を基板上に
散布し、その後加熱処理して粒子を変形せしめる。The manufacturing method of the second invention is a suitable method for manufacturing the liquid crystal element of the first invention. According to this manufacturing method, particles made of a thermoplastic substance or a substance that temporarily exhibits fluidity when heated and is subsequently cured are dispersed onto a substrate, and then heat-treated to deform the particles.
散布される粒子が加熱によって一時的に流動性を示しそ
の後硬化する物質からなるものである場合、散布される
粒子は加熱によって流動化し得る状態のものでなければ
ならない。If the particles to be dispersed are made of a material that temporarily exhibits fluidity when heated and then hardens, the particles to be dispersed must be in a state that can be made fluid by heating.
散布される粒子は球状であることが望ましいが、これに
限定されることはない。また、粒子は、できるだけ均一
な大きさのものを用いることが望ましい。The particles to be dispersed are preferably spherical, but are not limited to this. Furthermore, it is desirable to use particles with as uniform a size as possible.
このような粒子の散布は、できるだけ緻密にかつ重なり
を生じないように行なわれることが望ましい。また、こ
の粒子の散布は、基板上に直接凸部を形成する場合は基
板上に、透明電極上に凸部を形成する場合は透明電極上
に、配向膜上に凸部を形成する場合は配向膜上に行う。It is desirable that such particles be distributed as densely as possible without overlapping. In addition, these particles are scattered on the substrate when forming the protrusions directly on the substrate, on the transparent electrode when forming the protrusions on the transparent electrode, and on the transparent electrode when forming the protrusions on the alignment film. Perform on the alignment film.
粒子散布後に行なわれる熱処理は、散布された粒子が軟
化流動して、粒子の角部が丸まる温度以上で行なわれる
。そして、この熱処理は、粒子が略山形に変形するまで
行なわれることが望ましい。The heat treatment performed after particle dispersion is carried out at a temperature higher than the temperature at which the dispersed particles soften and flow and the corners of the particles become rounded. It is desirable that this heat treatment is carried out until the particles are deformed into a substantially mountain shape.
この第２発明の製造方法によれば、散布された粒子が熱
処理により角の丸まった状態となるので、形成される凹
凸は滑らかに変化する乙のとなる。According to the manufacturing method of the second invention, the corners of the dispersed particles are rounded by heat treatment, so that the formed irregularities change smoothly.
しかも、散布された粒子は熱処理時の流動により散布さ
れた面にぴったりと密着する形状となるので、形成され
る凸部は剥離し難いものとなる。Moreover, since the dispersed particles have a shape that tightly adheres to the surface on which they are dispersed due to the flow during the heat treatment, the formed convex portions are difficult to peel off.
また、第２発明の製造方法によれば、粒径の均一な粒子
を緻密に散布して粒子間の間隔を一定にすれば、これを
熱処理することにより形成される凹凸はピッチが均一で
その高低差も均一なものとなる。Further, according to the manufacturing method of the second invention, if particles of uniform particle size are dispersed densely and the spacing between the particles is made constant, the unevenness formed by heat-treating the particles will have a uniform pitch. The height difference will also be uniform.
「実施例」
第１図は、第１発明の液晶素子の一実施例を示すもので
ある。この液晶素子は、ＴＮ型のもので、図中符号１１
．１２はそれぞれガラス製の基板である。"Embodiment" FIG. 1 shows an embodiment of the liquid crystal element of the first invention. This liquid crystal element is of the TN type, and the number 11 in the figure
．． 12 are glass substrates.
これら基板１１．１２には、それぞれＩＴＯ（インジウ
ム・スズ酸化物）製の透明電極１３．１４が設けられて
いる。また、透明型［！１３．１４の上には、配向剤Ｊ
Ｒ−１００（商品名二日東電工製）からなる厚さ約１０
００Ａの配向１１１５，１６が設けられている。Transparent electrodes 13 and 14 made of ITO (indium tin oxide) are provided on these substrates 11 and 12, respectively. Also, transparent type [! 13. On top of 14, alignment agent J
Made of R-100 (product name manufactured by Nikitto Denko), approximately 10 mm thick
Orientations 1115 and 16 of 00A are provided.
そして、一方の配向１１ｉ１５上には、凸部１７・・・
が設けられている。この凸部１７は低融点ガラスからな
るもので、凸部１７・・・の最も突出した部分の間隔は
平均約１００μ１１凸部１７の高さは約３μ肩弱であっ
た。Then, on one orientation 11i15, a convex portion 17...
is provided. The protrusions 17 were made of low melting point glass, and the distance between the most protruding parts of the protrusions 17 was about 100μ on average, and the height of the protrusions 17 was about 3μ.
基板１１．１２間のギャップは、粒径１０μ肩のスペー
サ６によって規制されており、また２枚の基板１１゜１
２間の間隙はシール材５によって密閉されている。The gap between the substrates 11 and 12 is regulated by a spacer 6 with a grain size of 10μ, and the gap between the two substrates 11 and 12 is
The gap between the two is sealed by a sealing material 5.
そしてこれにより形成される空間にはＮｆ）液晶が封入
されている。また基板ＩＩ、１２の外面側には偏光板１
９．２０が設けられている。The space thus formed is filled with Nf) liquid crystal. Also, on the outer surface side of the substrates II and 12, there is a polarizing plate 1.
9.20 is provided.
次に、この液晶素子の製造方法を説明する。Next, a method for manufacturing this liquid crystal element will be explained.
まず、通常の方法で基板１１上にＩＴＯをスパッタして
透明電極１３を形成した。次に、この透明電極Ｉ３上に
配向剤ＪＲ−１００をスピンナーで塗布し、その後配向
処理して配向膜１５を形成した。First, a transparent electrode 13 was formed by sputtering ITO on a substrate 11 using a conventional method. Next, an alignment agent JR-100 was applied onto the transparent electrode I3 using a spinner, and then an alignment treatment was performed to form an alignment film 15.
ついで、第２図に示すように、配向膜１５上に凸部１７
・・・を形成するための粒子２１・・・を均一に散布し
た。この粒子２１・・・には、低融点ガラス（融点的５
２０〜５３０℃）からなる平均粒径１０μｍのフリット
を用いた。Next, as shown in FIG. 2, a convex portion 17 is formed on the alignment film 15.
Particles 21 for forming... were uniformly scattered. This particle 21... has a low melting point glass (melting point 5
A frit with an average particle diameter of 10 μm was used.
ついでこのものに熱処理を施した。熱処理の条件は、５
０００Ｃｘ１時間であった。This material was then subjected to heat treatment. The heat treatment conditions are 5.
000C x 1 hour.
他方、通常の方法で基板１２上に透明電極１４、配向ｇ
！１６を形成した。On the other hand, a transparent electrode 14, oriented in g
! 16 was formed.
次に、一方の基板１１上にスペーサ６・・・をふりまき
、他方の基板１２の周辺部にシール材としての熱硬化性
樹脂をスクリーン印刷し、ついで基板１１．１２を重ね
合わせた。その後、このものに１５０℃×１時間の熱処
理を施して熱硬化性樹脂を硬化させた。Next, spacers 6... were sprinkled on one of the substrates 11, a thermosetting resin was screen printed as a sealing material around the periphery of the other substrate 12, and then the substrates 11 and 12 were stacked on top of each other. Thereafter, this material was subjected to heat treatment at 150° C. for 1 hour to harden the thermosetting resin.
ついで、基板１１’、１２間の間隙にＮＰ液晶を封入し
、液晶セルとし、このセルを偏光板１９．２０で挟んで
液晶素子とした。Next, NP liquid crystal was sealed in the gap between the substrates 11' and 12 to form a liquid crystal cell, and this cell was sandwiched between polarizing plates 19 and 20 to form a liquid crystal element.
上記、実施例の液晶素子および前記従来の液晶素子につ
いて、表面粗さ、視角依存性、表示色を調べた。The surface roughness, viewing angle dependence, and display color of the liquid crystal element of the above-mentioned example and the conventional liquid crystal element were investigated.
（表面粗さ）
実施例の液晶素子については凸部１７・・・の設けられ
た面、従来の液晶素子については基板４の表面の祖さを
表面粗汁によって測定した。結果を第３図に示す。(Surface Roughness) The surface roughness of the surface provided with the convex portions 17 for the liquid crystal element of the example and the surface roughness of the substrate 4 for the conventional liquid crystal element were measured by surface roughness. The results are shown in Figure 3.
第３図の結果から、本発明の液晶素子に設けられた凹凸
は、滑らかに変化しかつ周期や高低差か略均−であるこ
とが確認された。From the results shown in FIG. 3, it was confirmed that the unevenness provided in the liquid crystal element of the present invention changes smoothly and has a substantially uniform period and height difference.
（視角依存性）
液晶素子を水平？二セットし、法線方向から順次視角を
変えて表示色の変化、コントラストなどの表示品位を観
察した。(Viewing angle dependence) Is the liquid crystal element horizontal? Two sets were used, and viewing angles were sequentially changed from the normal direction to observe display quality such as changes in display color and contrast.
結果を第１表に示す。The results are shown in Table 1.
第１表
注 ○：表示品位が視角０°と同じ
△：表示品位が視角０°より低下
×：表示か全く視認できない
第１表の結果から、本発明の液晶素子は、従来のらのに
比較して視角依存性が更に改善されていることが判明し
た。Note to Table 1 ○: Display quality is the same as the viewing angle of 0° △: Display quality is lower than the viewing angle of 0° In comparison, it was found that the viewing angle dependence was further improved.
（表示色）
国際照明委員会（ＣＩＥ）によって規定された標準光源
Ｃを液晶素子に照射したときの液晶素子の表示色を測定
し、（ｘｙ）−色度図にプロットした。(Display Color) The display color of the liquid crystal element when the liquid crystal element was irradiated with standard light source C specified by the Commission Internationale de Illumination (CIE) was measured and plotted on an (xy)-chromaticity diagram.
結果を第４図に示す。The results are shown in Figure 4.
第４図の結果から、本発明の液晶素子は従来のものに比
較して表示色がより光源色に近く、着色か少ないことが
判明した。From the results shown in FIG. 4, it was found that the liquid crystal element of the present invention had a display color closer to the light source color and was less colored than the conventional liquid crystal element.
「発明の効果」
以上説明したように、第１発明の液晶素子は、熱可塑性
物質あるいは加熱によって一時的に流動性を示しその後
硬化する物質からなる多数の凸部が基板の内面側に設け
られたものなので、基板の内面に周期や高低差が略均−
でかつ滑らかに変化する凹凸を形成することが可能とな
る。"Effects of the Invention" As explained above, the liquid crystal element of the first invention has a large number of protrusions formed on the inner surface of the substrate made of a thermoplastic material or a material that temporarily exhibits fluidity when heated and then hardens. Since the board has an approximately uniform period and height difference on its inner surface,
It becomes possible to form irregularities that vary greatly and smoothly.
従って、第１発明によれば、屈折率異方性とギャップの
関係から生ずる表示部の着色が少なく、かつ視角依存性
のより改善された液晶素子を提供することができる。Therefore, according to the first aspect of the invention, it is possible to provide a liquid crystal element in which the display portion is less colored due to the relationship between the refractive index anisotropy and the gap, and the viewing angle dependence is further improved.
また、第２発明の製造方法は、熱可塑性物質あるいは加
熱によって一時的に流動性を示しその後硬化する物質か
らなる粒子を基板の内面側に散布し、その後加熱処理し
て粒子を変形せしめることにより基板の内面側に凹凸を
ｑする液晶素子を製造する方法なので、表示の着色が少
なく、視角依存性の小さい第１発明の液晶素子を効率良
く製造することができる。Further, the manufacturing method of the second invention includes scattering particles made of a thermoplastic substance or a substance that temporarily exhibits fluidity when heated and then hardens on the inner surface of the substrate, and then heat-treating the particles to deform the particles. Since this is a method of manufacturing a liquid crystal element having q unevenness on the inner surface of the substrate, it is possible to efficiently manufacture the liquid crystal element of the first invention with little display coloration and low viewing angle dependence.
また、第２発明の製造方法によれば、粒子を散布し、そ
の後熱処理するといった極めて簡略な工程で基板の内面
側に凹凸を形成できるので、液晶素子の製造工程は簡略
で管理の容易なものとなる利点がある。Furthermore, according to the manufacturing method of the second invention, the unevenness can be formed on the inner surface of the substrate through an extremely simple process of dispersing particles and then performing heat treatment, so the manufacturing process of the liquid crystal element is simple and easy to manage. There is an advantage that
第１図は第１発明の液晶素子の一実施例の要部を示す断
面図、第２図は同実施例の液晶素子を製造する過程の状
態を示す断面図、第３図は実施例および従来の液晶素子
の凹凸の設けられた面の粗さを測定した結果を示すグラ
フ、第４図は表示色を調べた結果を示す（Ｘｙ）−色度
図、第５図は従来の液°晶素子の要部を示す断面図であ
る。
１１・・・基板、１７・・・凸部、２１・・・球状粒子
。FIG. 1 is a sectional view showing essential parts of an embodiment of the liquid crystal element of the first invention, FIG. 2 is a sectional view showing the state of the process of manufacturing the liquid crystal element of the same embodiment, and FIG. A graph showing the results of measuring the roughness of the uneven surface of a conventional liquid crystal element, Figure 4 is an (Xy) - chromaticity diagram showing the results of examining display colors, and Figure 5 is a graph showing the results of measuring the roughness of the uneven surface of a conventional liquid crystal element. FIG. 2 is a cross-sectional view showing the main parts of a crystal element. DESCRIPTION OF SYMBOLS 11... Substrate, 17... Convex part, 21... Spherical particle.
Claims (2)
性を示しその後硬化する物質からなる多数の凸部が基板
の内面側に設けられたことを特徴とする液晶素子。(1) A liquid crystal element characterized in that a large number of convex portions made of a thermoplastic material or a material that temporarily exhibits fluidity when heated and then hardens are provided on the inner surface of a substrate.
性を示しその後硬化する物質からなる粒子を基板上に散
布し、その後加熱処理して粒子を変形せしめることによ
り基板の内面側に多数の凸部を形成することを特徴とす
る液晶素子の製造方法。(2) Particles made of a thermoplastic material or a material that temporarily exhibits fluidity when heated and then hardens are dispersed onto the substrate, and then heated to deform the particles, thereby creating a large number of convex portions on the inner surface of the substrate. A method for manufacturing a liquid crystal element, the method comprising: forming a liquid crystal element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27877087A JPH01120532A (en) | 1987-11-04 | 1987-11-04 | Liquid crystal element and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27877087A JPH01120532A (en) | 1987-11-04 | 1987-11-04 | Liquid crystal element and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01120532A true JPH01120532A (en) | 1989-05-12 |
Family
ID=17601943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27877087A Pending JPH01120532A (en) | 1987-11-04 | 1987-11-04 | Liquid crystal element and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01120532A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6468844B1 (en) | 1997-07-14 | 2002-10-22 | Semiconductor Energy Laboratory Co., Ltd. | Preparation method of semiconductor device |
| US6856360B1 (en) | 1997-11-28 | 2005-02-15 | Semiconductor Energy Laboratory Co., Ltd. | Electrooptical device, method of manufacturing the same, and electronic equipment |
| US7192865B1 (en) | 1997-11-27 | 2007-03-20 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and process for producing the same |
| US7227603B1 (en) | 1993-07-22 | 2007-06-05 | Semiconductor Energy Laboratory Co., Ltd. | Liquid-crystal electro-optical apparatus and method of manufacturing the same |
| US8212968B2 (en) | 1993-07-22 | 2012-07-03 | Semiconductor Energy Laboratory Co., Ltd. | Liquid-crystal electro-optical apparatus and method of manufacturing the same |
-
1987
- 1987-11-04 JP JP27877087A patent/JPH01120532A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7227603B1 (en) | 1993-07-22 | 2007-06-05 | Semiconductor Energy Laboratory Co., Ltd. | Liquid-crystal electro-optical apparatus and method of manufacturing the same |
| US7561246B2 (en) | 1993-07-22 | 2009-07-14 | Semiconductor Energy Laboratory Co., Ltd. | Liquid-crystal electro-optical apparatus and method of manufacturing the same |
| US8212968B2 (en) | 1993-07-22 | 2012-07-03 | Semiconductor Energy Laboratory Co., Ltd. | Liquid-crystal electro-optical apparatus and method of manufacturing the same |
| US8243233B2 (en) | 1993-07-22 | 2012-08-14 | Semiconductor Energy Laboratory Co., Ltd. | Liquid-crystal electro-optical apparatus and method of manufacturing the same |
| US8396690B2 (en) | 1993-07-22 | 2013-03-12 | Semiconductor Energy Laboratory Co., Ltd. | Liquid-crystal electro-optical apparatus and method of manufacturing the same |
| US6468844B1 (en) | 1997-07-14 | 2002-10-22 | Semiconductor Energy Laboratory Co., Ltd. | Preparation method of semiconductor device |
| US7192865B1 (en) | 1997-11-27 | 2007-03-20 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and process for producing the same |
| US7202497B2 (en) | 1997-11-27 | 2007-04-10 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device |
| US6856360B1 (en) | 1997-11-28 | 2005-02-15 | Semiconductor Energy Laboratory Co., Ltd. | Electrooptical device, method of manufacturing the same, and electronic equipment |
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