JPH04179918A - Production of color liquid crystal display device - Google Patents
Production of color liquid crystal display deviceInfo
- Publication number
- JPH04179918A JPH04179918A JP30785190A JP30785190A JPH04179918A JP H04179918 A JPH04179918 A JP H04179918A JP 30785190 A JP30785190 A JP 30785190A JP 30785190 A JP30785190 A JP 30785190A JP H04179918 A JPH04179918 A JP H04179918A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- polymer
- substrate
- water
- crystal 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 229920000642 polymer Polymers 0.000 claims abstract description 17
- 239000002243 precursor Substances 0.000 claims abstract description 11
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 7
- 239000003086 colorant Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 239000000975 dye Substances 0.000 abstract description 6
- 239000011521 glass Substances 0.000 abstract description 6
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 239000004815 dispersion polymer Substances 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000004544 sputter deposition Methods 0.000 abstract 1
- 239000004983 Polymer Dispersed Liquid Crystal Substances 0.000 description 9
- 239000012860 organic pigment Substances 0.000 description 9
- 239000008151 electrolyte solution Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229920005601 base polymer Polymers 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 229920000831 ionic polymer Polymers 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 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〕
本発明はフラットデイスプレィとして用いることができ
るカラー液晶表示装置の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a color liquid crystal display device that can be used as a flat display.
近年ポリマー分散型液晶が新しい液晶表示装置として脚
光を浴びている。In recent years, polymer-dispersed liquid crystals have been attracting attention as a new liquid crystal display device.
ポリマー分散型液晶は溶媒に溶解したポリマー前駆体中
に液晶を分散した後、溶媒を揮散させる、あるいは加熱
、紫外線の照射を併用するなどの方法によりポリマ一体
を固化し、ポリマ一体中に1〜10μm程度の球状の液
晶カプセルを生成させるものであり、このポリマ一体を
電極基板間に挟持し、電圧を印加することにより光学的
な表示装置として使用できるものである。Polymer-dispersed liquid crystals are produced by dispersing liquid crystals in a polymer precursor dissolved in a solvent, then solidifying the polymer by evaporating the solvent or using a combination of heating and ultraviolet irradiation. This method produces spherical liquid crystal capsules with a diameter of about 10 μm, and by sandwiching this polymer body between electrode substrates and applying a voltage, it can be used as an optical display device.
このポリマー分散型液晶は従来の液晶表示装置と異なり
、偏光板を必要としないことから、大きな輝度が確保で
きる等のメリットがある。Unlike conventional liquid crystal display devices, this polymer-dispersed liquid crystal does not require a polarizing plate, so it has the advantage of ensuring high brightness.
しかしながら、カラー化による多色表示をするためには
、従来と同様カラーフィルター基板を別途付設する必要
があった。However, in order to perform multicolor display by coloring, it was necessary to separately attach a color filter substrate as in the past.
以上のように従来の技術ではポリマー分散型液晶の多色
カラー化には所定のカラーパターンをもったカラーフィ
ルター基板を別途作成し、ポリマー分散型液晶体に積層
する必要があった。As described above, in the conventional technology, in order to make a polymer-dispersed liquid crystal multicolor, it was necessary to separately prepare a color filter substrate with a predetermined color pattern and laminate it on the polymer-dispersed liquid crystal.
本発明は従来法とは異なり、その目的とするところはポ
リマー分散型液晶体とカラーフィルターを同時に形成で
きる方法を提供することにある。The present invention differs from conventional methods in that it provides a method that can simultaneously form a polymer-dispersed liquid crystal and a color filter.
本発明のカラー液晶表示装置の製造方法は、電気化学的
に電極上に析出することが可能なポリマー前駆体溶液中
にマイクロカプセル化した液晶と水に不溶性の釘機色素
を分散した後、該溶液中で電解を行なうことにより、電
極基板上にポリマー前駆体、マイクロカプセル化した液
晶および水に不溶性の有機色素を共析させた後該電極基
板を透明電極つき透明基板と貼り合わせることを特徴と
する。The method for manufacturing a color liquid crystal display device of the present invention involves dispersing microencapsulated liquid crystal and water-insoluble nail machine dye in a polymer precursor solution that can be electrochemically deposited on electrodes. The method is characterized in that a polymer precursor, a microencapsulated liquid crystal, and a water-insoluble organic dye are co-deposited on an electrode substrate by electrolysis in a solution, and then the electrode substrate is bonded to a transparent substrate with a transparent electrode. shall be.
さらに水に不溶性の有機色素として、R,G、Bの原色
色の色素を用い、それらを含む電解液を作成することに
より、同一基板上にR,G、Hのそれぞれのパターンを
形成することで多色のカラー液晶表示装置を可能にする
ことを特徴とする。Furthermore, R, G, and B primary color pigments are used as water-insoluble organic pigments, and by creating an electrolytic solution containing them, R, G, and H patterns can be formed on the same substrate. It is characterized by enabling a multi-color liquid crystal display device.
本技術におけるポリマー前駆体、マイクロカプセル化し
た液晶および水に不溶性の有機色素の共析膜は、イオン
性のポリマー前駆体が、電気化学的に電極上に析出する
際、析出するポリマ一体中にマイクロカプセル化した液
晶と有機色素微粒子が、同時に取り込まれることにより
作成できると考えられる。In this technology, the eutectoid film of a polymer precursor, microencapsulated liquid crystal, and water-insoluble organic dye is produced when an ionic polymer precursor is electrochemically deposited on an electrode. It is thought that it can be created by simultaneously incorporating microencapsulated liquid crystal and organic dye particles.
対角6インチのガラス基板上にスパッタリングによりI
T O(Indium Tin 0xide)膜を膜
厚的1000Aで形成し透明電極とした。I was sputtered onto a glass substrate with a diagonal of 6 inches.
A T 2 O (Indium Tin Oxide) film was formed to a thickness of 1000 Å to form a transparent electrode.
さらにフォトリソグラフィー法を用いITOを幅0.
2+*m、パターン間ピッチ0.25順で321本から
なるストライプ状パターンに形成し、これを電解に用い
る基板とした。Furthermore, using the photolithography method, ITO was coated with a width of 0.
A striped pattern consisting of 321 lines was formed in the order of 2+*m and an inter-pattern pitch of 0.25, and this was used as a substrate for electrolysis.
続いて、次の組成からなる3種類の電解液を各11づつ
作成した。いずれの電解液も電気化学的に析出できるア
クリル酸とメラミン樹脂を含み若干のブチルセロソルブ
も含む水溶液をベースとしている。Subsequently, 11 each of three types of electrolytic solutions having the following compositions were created. Both electrolytes are based on aqueous solutions containing electrochemically precipitable acrylic acid and melamine resin, as well as some butyl cellosolve.
剤中に溶かし、ミスト化した後、ゼラチンでコーティン
グすることによりマイクロカプセル化した。After dissolving it in a drug and making it into a mist, it was coated with gelatin to form microcapsules.
径は約3〜5μmであった。水に水溶性の有機色素とし
て有機顔料を用いた。The diameter was approximately 3-5 μm. Organic pigments were used as water-soluble organic dyes.
上述のマイクロカプセル化した液晶および有機顔料はベ
ースのポリマー前駆体溶液中に超音波分散を用いて分散
した。The microencapsulated liquid crystal and organic pigment described above were dispersed in the base polymer precursor solution using ultrasonic dispersion.
次に前述のガラス基板を用い電解操作を行なった。Next, electrolysis was performed using the glass substrate described above.
最初に基板上のITOパターンを3本おきに選択的に通
電し、電解液1を用い電解を行なった。First, electricity was selectively applied to every third ITO pattern on the substrate, and electrolysis was performed using electrolyte solution 1.
対極との間に20Vを印加し、3分間電解を行なった。20V was applied between the electrode and the counter electrode, and electrolysis was performed for 3 minutes.
その結果、ITO上に約15μmの膜厚でポリマー、マ
イクロカプセル化した液晶および赤色の有機顔料からな
る共析膜が生成した。第1図(a)はその断面を模式的
に示した。As a result, a eutectoid film consisting of polymer, microencapsulated liquid crystal, and red organic pigment was formed on ITO with a film thickness of about 15 μm. FIG. 1(a) schematically shows the cross section.
次に電解液2を用い前述のITOパターンとは異なるI
TOパターンをやはり3本おきに選択的に通電し、同様
の操作により、約15μmの膜厚でポリマー、マイクロ
カプセル化した液晶および緑色の有機顔料からなる共析
膜が生成した。第1図(b)はその断面を模式的に示し
た。Next, electrolyte 2 was used to create an ITO pattern different from the above-mentioned ITO pattern.
The TO pattern was also selectively energized every three lines, and by the same operation, a eutectoid film consisting of polymer, microencapsulated liquid crystal, and green organic pigment was produced with a film thickness of about 15 μm. FIG. 1(b) schematically shows the cross section.
さらに、電解液3を用い残りのITOパターンに通電し
、ポリマー、マイクロカプセル化した液晶および青色の
有機顔料からなる共析膜が約15μmの膜厚て生成した
。第1図(C)はその断面を模式的に示した。Further, the remaining ITO pattern was energized using electrolytic solution 3, and a eutectoid film with a thickness of about 15 μm consisting of polymer, microencapsulated liquid crystal, and blue organic pigment was formed. FIG. 1(C) schematically shows the cross section.
以上の操作により、透明電極を付与した透明基板上にR
,G、Hの原色色のストライプ状パターンからなるポリ
マー分散型液晶体を作成することかできた。By the above operations, R
We were able to create a polymer-dispersed liquid crystal consisting of a striped pattern of the primary colors , G, and H.
次ニ、前述の基板のITOパターンと直交するようなス
トライブパターンにITOパターンを形成したガラス基
板を熱硬化性樹脂を塗布することにより前記のポリマー
分散型液晶体を形成した基板と貼り合わせ、所定の加熱
を行なうことで、本発明のカラー液晶表示装置が作成で
きた。Next, a glass substrate on which an ITO pattern is formed in a stripe pattern perpendicular to the ITO pattern on the substrate is bonded to the substrate on which the polymer-dispersed liquid crystal is formed by applying a thermosetting resin. By performing prescribed heating, the color liquid crystal display device of the present invention could be produced.
このカラー液晶表示装置は50V前後の電圧を側基板間
に印加することでカラー液晶表示体として動作すること
が確認できた。It was confirmed that this color liquid crystal display device operated as a color liquid crystal display by applying a voltage of about 50 V between the side substrates.
以上のように本発明により、生産技術的に容易にカラー
ポリマー分散型液晶表示体を作成することが可能となっ
た。製造コスト的にも低コストが見込め、量産性も高い
と考えられる。As described above, according to the present invention, it has become possible to easily create a color polymer dispersed liquid crystal display in terms of production technology. It is expected that the manufacturing cost will be low, and mass productivity will be high.
第1図は本発明のカラー液晶表示装置の製造方法の例を
模式的に示す図。
1・・・ITO
2・・・ガラス基板
3・・・ポリマー、マイクロカプセル化した液晶および
有機顔料(赤)の共析体
4・・・ポリマー、マイクロカプセル化した液晶および
有機顔料(緑)の共析体
5・・・ポリマー、マイクロカプセル化した液晶および
有機顔料(青)の共析体
6・・・ITO
7・・・ガラス基板
8・・・熱硬化型樹脂
以上
出願人 セイコーエプソン株式会社FIG. 1 is a diagram schematically showing an example of a method for manufacturing a color liquid crystal display device of the present invention. 1...ITO 2...Glass substrate 3...Eutectoid of polymer, microencapsulated liquid crystal and organic pigment (red) 4...Polymer, microencapsulated liquid crystal and organic pigment (green) Eutectoid 5: Eutectoid of polymer, microencapsulated liquid crystal, and organic pigment (blue) 6: ITO 7: Glass substrate 8: Thermosetting resin Applicant: Seiko Epson Corporation
Claims (1)
ー前駆体溶液中にマイクロカプセル化した液晶と水に不
溶性の有機色素を分散した後、該溶液中で電解を行なう
ことにより電極基板上にポリマー前駆体、マイクロカプ
セル化した液晶および水に不溶性の有機色素を共析させ
た後該電極基板を透明電極つき透明電極と貼り合わせた
ことを特徴とするカラー液晶表示装置の製造方法。 2)請求項1において、水に不溶性の有機色素としてR
、G、Bの3原色を用い同一基板上にR、G、B3原色
のパターンを形成したことを特徴とする請求項1記載の
カラー液晶表示装置の製造方法。[Claims] 1) After dispersing a microencapsulated liquid crystal and a water-insoluble organic dye in a polymer precursor solution that can be electrochemically deposited on an electrode, electrolysis is carried out in the solution. A color liquid crystal display characterized in that a polymer precursor, a microencapsulated liquid crystal, and a water-insoluble organic dye are co-deposited on an electrode substrate by performing the above steps, and then the electrode substrate is bonded to a transparent electrode with a transparent electrode. Method of manufacturing the device. 2) In claim 1, R as the water-insoluble organic dye
2. The method of manufacturing a color liquid crystal display device according to claim 1, wherein patterns of the three primary colors R, G, and B are formed on the same substrate using the three primary colors R, G, and B.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30785190A JPH04179918A (en) | 1990-11-14 | 1990-11-14 | Production of color liquid crystal display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30785190A JPH04179918A (en) | 1990-11-14 | 1990-11-14 | Production of color liquid crystal display device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04179918A true JPH04179918A (en) | 1992-06-26 |
Family
ID=17973943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30785190A Pending JPH04179918A (en) | 1990-11-14 | 1990-11-14 | Production of color liquid crystal display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04179918A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5479278A (en) * | 1991-10-21 | 1995-12-26 | Dai Nippon Printing Co., Ltd. | Method of making a polymer dispersed liquid crystal by electrodeposition |
US6108062A (en) * | 1991-10-21 | 2000-08-22 | Dai Nippon Printing Co., Ltd. | Polymer dispersion-type liquid crystal optical device and method for producing the same |
US8830561B2 (en) | 2006-07-18 | 2014-09-09 | E Ink California, Llc | Electrophoretic display |
KR101444477B1 (en) * | 2006-07-18 | 2014-09-24 | 사이픽스 이미징, 인코포레이티드 | Liquid-containing film structure |
US11543725B2 (en) | 2006-07-18 | 2023-01-03 | E Ink California, Llc | Flexible controlled-release film |
-
1990
- 1990-11-14 JP JP30785190A patent/JPH04179918A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5479278A (en) * | 1991-10-21 | 1995-12-26 | Dai Nippon Printing Co., Ltd. | Method of making a polymer dispersed liquid crystal by electrodeposition |
US6108062A (en) * | 1991-10-21 | 2000-08-22 | Dai Nippon Printing Co., Ltd. | Polymer dispersion-type liquid crystal optical device and method for producing the same |
US8830561B2 (en) | 2006-07-18 | 2014-09-09 | E Ink California, Llc | Electrophoretic display |
KR101444477B1 (en) * | 2006-07-18 | 2014-09-24 | 사이픽스 이미징, 인코포레이티드 | Liquid-containing film structure |
US11543725B2 (en) | 2006-07-18 | 2023-01-03 | E Ink California, Llc | Flexible controlled-release film |
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