500960 A7 _B7 五、發明說明（） 發明領域： (請先閱讀背面之注意事項再填寫本頁) 本發明係關於一種彩色液晶顯示器，特別是一種使用 主從微包囊液晶薄膜當作濾色片，同時也當作是液晶顯示 器。本發明亦關於一種加成型色彩的混合方法，以產生多 色彩之輸出。 發明背景= 經濟部智慧財產局員工消費合作社印製 彩色液晶顯示器可以下列方式製成：1 )採用一種紅、 綠、藍向列曲線型排列相（nematic curvilinear alignment phase，NCAP)薄膜之加成型色彩混合方法，或是使用墨 綠、紫紅、黃色的向列曲線型排列相薄膜之相消型色彩混 合方法。這些方法已揭露於Fergason之美國專利 4435047、 4834508、 487874卜 4953953、 5052784、 5132815 和5 1 423 89中。這些彩色液晶顯示器通常由至少兩層薄膜 所製成。2)堆疊三種使用墨綠、紫紅、黃色主從液晶顯 示器以使用相消型色彩混合方法。這已揭露於Trimmer等 人之文章『顯示器應用之全彩相消型光閥』95至103頁 之中（SPIE Volume 1 257，液晶及其應用，1 990年），以 及在Sunohara等人之文章『使用三層GH模式之反射式彩 色液晶顯示器』103至108頁之中（SID1 996年文摘）。 在Sunohara等人的另一文章『堆疊包囊液晶薄膜之反射式 彩色液晶顯示器』762至765頁之中（SID 1 998年文摘）， 該技術係關於經由堆疊主從包囊液晶層的彩色液晶顯# 器。3 )將一濾色片接合至一扭曲向列液晶顯示器（TN、液 第4頁 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 500960 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（） 晶顯示器），正如現今一般電腦所使用的顯示器。 在上述Fergason之美國專利所揭露之液晶微滴或包 囊都是依據乳劑製備方法而製成的。在Drzaic的文章2142 至2148頁之中（應用物理雜誌，Journal of Applied Physics， Volume 50 ， Νο·6 ， September 1 5, 1 9 8 6 )，幸匿導 一種依據乳劑的製備方法而製成的水性向列曲線型排列 相（NCAP )系統是一種液晶在聚合物模片（matrix )中成 滲透網狀結構（interpenetrating network)，而並非一種 包囊液晶。因此，上述Fergason之美國專利中對於獲得完 全分離的染料/液晶（染料及液晶所成混合體）微滴是有困 難的。 在Drzaic的文章『31.1邀請演說：向列分散之雙向 色性顯示器』571至574頁之中（SID 1 992年文摘），該 技術係關於將黑色雙向色性染料混合劑和向列曲線型排 列相（NCAP)薄膜結合能夠免去偏光片之使用，以增加 光學的效能，而一個全彩的向列曲線型排列相（NCAP ) 液晶顯示器能附著濾色片製造而成。這個方法的缺點是該 系統中的雙向色性染料穩定性問題。 由堆疊三種使用墨綠、紫紅、黃色主從液晶顯示器製 成之彩色液晶顯示器可產生高亮度，但其光線透過變低， 且其商業化大量生產之製造成本高。 以附著濾色片至一扭曲向列液晶顯示器（TN液晶顯 示器）所製成的彩色液晶顯示器之光學效率低，因爲入射 光大部分都被偏光片和濾色片所吸收。爲了獲得足夠的亮 第5頁 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）500960 A7 _B7 V. Description of the invention () Field of invention: (Please read the precautions on the back before filling out this page) The present invention relates to a color liquid crystal display, in particular to a master-slave microencapsulated liquid crystal film as a color filter It is also used as an LCD monitor. The invention also relates to a mixing method for adding colors to produce a multi-color output. Background of the Invention = The printed color liquid crystal display of the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs can be made in the following ways: 1) Addition of a red, green, and blue nematic curvilinear alignment phase (NCAP) film Mixing method, or destructive color mixing method using dark green, magenta, yellow nematic curve-type phase film. These methods have been disclosed in Fergason U.S. Patents 4,435,047, 4,834,508, 487,874, 4,953,953, 5,052,784, 5,132,815, and 5,142,89. These color liquid crystal displays are usually made of at least two films. 2) Three types of master-slave LCDs using dark green, magenta, and yellow are stacked to use a destructive color mixing method. This has been disclosed in Trimmer et al.'S article "Full-Color Destructive Light Valves for Display Applications" pages 95 to 103 (SPIE Volume 1 257, LCDs and Applications, 1 990), and in Sunohara et al. "Reflective color LCD using three-layer GH mode" on pages 103 to 108 (SID1, 996 Abstract). In another article by Sunohara et al., "Reflective color liquid crystal displays with stacked encapsulated liquid crystal films", pages 762 to 765 (SID 1998 abstract), the technology is about color liquid crystals with stacked master-slave encapsulated liquid crystal layers.显 # 器. 3) A color filter is bonded to a twisted nematic liquid crystal display (TN, liquid page 4) The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 500960 Employees' Cooperatives, Intellectual Property Bureau, Ministry of Economic Affairs Printed A7 B7 V. Description of the invention () crystal display), just like the display used by ordinary computers today. The liquid crystal droplets or capsules disclosed in the aforementioned U.S. patent to Fergason are made according to the method for preparing emulsions. In Drzaic's article 2142 to 2148 (Journal of Applied Physics, Volume 50, No. 6, September 1 5, 1 9 8 6), fortunately led to a method based on the preparation of emulsions The water-based nematic curve arrangement phase (NCAP) system is a kind of liquid crystal forming an interpenetrating network structure in a polymer matrix, rather than an encapsulated liquid crystal. Therefore, it is difficult to obtain fully separated dye / liquid crystal (mixture of dye and liquid crystal) droplets in the aforementioned U.S. patent of Fergason. In Drzaic's article "31.1 Invited Speech: Nematically Dispersed Bidirectional Colorimetric Displays" pages 571 to 574 (SID 1 992 Abstract), the technology is about arranging black bichromatic dye mixtures and nematic curves. Phase (NCAP) film combination can eliminate the use of polarizers to increase the optical efficiency, and a full-color nematic curve phase alignment (NCAP) liquid crystal display can be manufactured by attaching color filters. The disadvantage of this method is the stability of the dichroic dye in the system. A stack of three color liquid crystal displays using dark green, magenta, and yellow master-slave liquid crystal displays can produce high brightness, but its light transmission becomes low, and the manufacturing cost of its commercial mass production is high. A color liquid crystal display made by attaching a color filter to a twisted nematic liquid crystal display (TN liquid crystal display) has low optical efficiency because most of the incident light is absorbed by the polarizer and the color filter. In order to get enough light, page 5 This paper size applies Chinese National Standard (CNS) A4 (210 X 297 mm)
I------ (請先閱讀背面之注意事項再填寫本頁) 500960 經濟部智慧財產局員工消費合作社印製 Α7 Β7 五、發明說明（） 度’扭曲向列液晶顯不益（TN液晶顯示器）需要使用具 有背光透光模式。因此，需要一強力電池，且較短的電池 壽命不適合運用在實際攜帶式裝置的應用上。 爲簡化顯示器的製造過程、降低製造成本以及電力消 耗’不使用偏光片和濾色片之單層多色液晶顯示器有其迫 切需要。在Wu等人的文章『小型彩色液晶顯示器』217 至219頁之中（SID 1 990文摘），該技術係關於一單層之 主從散佈聚合物之液晶顯示器（PDLC )能夠以溶解主要 雙向色性染料於具有不同特性（例如，介電値、雙折色性 以及雙重頻率）之二組液晶而製成。在Fergason之美國專 利第5 1 3 2 8 1 5號中，該技術關於具有雙重頻率液晶之使 用，以於單層中建構一彩色液晶顯示器。上述該單層顯示 器分別使用相分隔及乳劑製備方法。經由此二種方法所獲 得之染料及液晶微滴傾向於形成不同染料及液晶微滴之 混合物，而不是分離之染料及液晶微滴。單層彩色液晶顯 示器所使用待混合之個別染料及液晶微滴應爲分離之包 囊並受包囊壁之妥善保護。因此，該染料及液晶包囊能 被用於製造實用之單層彩色液晶顯示器。I ------ (Please read the notes on the back before filling out this page) 500960 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Α7 Β7 V. Description of the invention () The degree of twisted nematic liquid crystal is not beneficial (TN Liquid crystal display) need to use a backlight transmission mode. Therefore, a powerful battery is required, and the short battery life is not suitable for practical portable device applications. In order to simplify the display manufacturing process, reduce manufacturing costs, and reduce power consumption, single-layer multicolor liquid crystal displays that do not use polarizers and color filters have urgent needs. In Wu et al.'S "Small Color LCD" pages 217 to 219 (SID 1 990 Abstract), the technology is about a single-layer master-slave dispersed polymer liquid crystal display (PDLC) capable of dissolving the main bi-directional color Sex dyes are made from two sets of liquid crystals with different characteristics (eg, dielectric chirp, birefringence, and dual frequency). In Fergason's U.S. Patent No. 5 1 2 8 15, this technology relates to the use of dual-frequency liquid crystals to construct a color liquid crystal display in a single layer. The single-layer display described above uses phase separation and emulsion preparation methods, respectively. The dyes and liquid crystal droplets obtained by these two methods tend to form a mixture of different dyes and liquid crystal droplets, rather than separated dyes and liquid crystal droplets. The individual dyes and liquid crystal droplets to be mixed used in the single-layer color liquid crystal display should be separated capsules and properly protected by the capsule walls. Therefore, the dye and the liquid crystal capsule can be used for manufacturing a practical single-layer color liquid crystal display.
Hsu所申請之兩件美國專利申請案號爲08/827574和 09/042394在此列爲參考資料。其係關於液晶微包囊 (MLC )材料，該材料係爲包含雙向色性染料、等向性染 料或其混合物之分離液晶包囊形式。當不同的染料及液晶 包囊在黏合劑中混合時將保持穩定，而不會互相溶合。除^ 此之外’染料在包囊中的穩定性可獲得相當大的改善，並 第6頁 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公愛） (請先閱讀背面之注意事項再填寫本頁) AW.------—訂---------線· 500960 A7 五、發明說明（ 適合實際之應用。 發明目的及槪沭： 本發明一主要目的在於提供一使用染料/液晶（染料 及液所成混合體）微包囊混合物’包含或不包含等向性 染料或顏料，和散佈黏合劑的彩色液晶顯示器。該染料/ 液晶混合物可使用雙向色性染料和液晶或雙向色性染 料、等向性染料和液晶或等向性染料和液晶。 本發明之又一目的在於提供一種藉由加成性混色方 法以色彩元素之補色製成之多色顯示器。 本發明之再一目的在於提供一種製造單層多色液晶 顯示器之方法。 訂 本發明之另一目的在於提供一種用塗覆和印刷方法 製造彩色液晶顯示器之方法。 圖式簡單說明： 線 第1圖爲本發明使用分別包含兩種雙向色性染料和一種等 向丨生之紅、綠、監染料或顏料之二種黑色散佈聚合 物液晶微包囊（PDMLC )材料之一較佳彩色液晶顯 7K器實施例。該材料形成補色混合物，並塗覆於三 個次像素（subpixel)。 第2圖爲本發明使用包括一種雙向色性染料和一種分別包 含等向性紅、綠、藍染料或顏料包囊之黏合劑的三 種混合黑色散佈聚合物液晶微包囊（PDMLC )材料 之一較佳彩色液晶顯示器實施例。該黑色散佈聚合 第7頁The two US patent applications filed by Hsu as 08/827574 and 09/042394 are incorporated herein by reference. It relates to a liquid crystal microencapsulation (MLC) material, which is in the form of an isolated liquid crystal encapsulation containing a dichroic dye, an isotropic dye, or a mixture thereof. When different dyes and liquid crystal capsules are mixed in the adhesive, they will remain stable without dissolving with each other. In addition to ^, the stability of the dye in the capsule can be greatly improved, and the paper size on page 6 applies the Chinese National Standard (CNS) A4 specification (210 X 297 public love) (Please read the Note for this page, please fill in this page again) AW .------— Order --------- Line · 500960 A7 V. Description of the invention (suitable for practical applications. Purpose of the invention and: The purpose is to provide a color liquid crystal display using a dye / liquid crystal (mixture of dyes and liquids) microencapsulated mixture with or without isotropic dyes or pigments, and an adhesive. The dye / liquid crystal mixture can be used in both directions Chromatic dyes and liquid crystals or dichroic dyes, isotropic dyes and liquid crystals or isotropic dyes and liquid crystals. Another object of the present invention is to provide a multi-color process using additive color mixing methods. Color display. Another object of the present invention is to provide a method for manufacturing a single-layer multicolor liquid crystal display. Another object of the present invention is to provide a method for manufacturing a color liquid crystal display by a coating and printing method. Brief description: Line 1 is a diagram of the present invention using two kinds of black dispersing polymer liquid crystal microencapsulated (PDMLC) materials containing two dichroic dyes and one isotropic red, green, monitor dye or pigment. A preferred embodiment of a color liquid crystal display 7K device. The material forms a complementary color mixture and is applied to three subpixels. Figure 2 shows the use of the present invention including a two-way chromatic dye and an isotropic red One preferred embodiment of a color liquid crystal display of three mixed black dispersed polymer liquid crystal microencapsulated (PDMLC) materials, green, blue, or dye-encapsulated binders. The black dispersed polymer page 7
本紙張尺度適用中國國家標準(CNS)A4規袼_ (210 X 297公愛Y 經濟部智慧財產局員工消費合作社印製 500960 A7 ____B7 _ 五、發明說明（） 物液晶微包囊（PDMLC)分別塗覆於三個次像素 (subpixel ) 〇 第3圖爲本發明使用包括一種雙向色性染料和一種分別散 佈等向性紅、綠、藍染料或顏料之黏合劑的三種混 合黑色散佈聚合物液晶微包囊（PDMLC)材料之一 較佳彩色液晶顯示器實施例。該黑色散佈聚合物液 晶微包囊（PDMLC )分別塗覆於三個次像素 (subpixel ) 〇This paper size applies the Chinese National Standard (CNS) A4 regulations. (210 X 297 Public Love Y Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 500960 A7 ____B7 _ V. Description of the invention () Liquid crystal microencapsulation (PDMLC) respectively Coated on three subpixels. Figure 3 shows the use of three mixed black dispersed polymer liquid crystals including a bi-chromatic dye and an adhesive that separately disperses isotropic red, green, blue dyes or pigments. One of the preferred color liquid crystal display embodiments of microencapsulated (PDMLC) material. The black dispersed polymer liquid crystal microencapsulated (PDMLC) is coated on three subpixels, respectively.
圖號對照說明I 1 多色液晶顯示器 2 玻璃基板 3 共通銦錫氧化物（Common ITO) 4 像素銦錫氧化物（Pixel ITO ) 5 黑色主從散佈聚合物液晶微包囊材半斗 6 黏合劑 7 包囊壁 8 液晶 9 雙向色性染料 10等向性染料 11等向性染料包囊 發明詳細說明： — 液晶微包囊（MLC)之製備 第8頁 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） (請先閱讀背面之注意事項再填寫本頁) i. 訂------------線. 500960 A7 ______ B7 五、發明說明（） 本發明中包含液晶和染料之微包囊是根據美國專利 申請08/8275 74和09/0423 94所揭露之方法製成的。 (請先閱讀背面之注意事項再填寫本頁) 根據本發明該液晶微包囊（MLC )該材料可以用介面 聚合法製成，形成聚氨基甲酸酯/聚尿素 (polyurethane/polyurea )、聚尿素（polyurea )、三聚氰 胺甲醒（melamine formaldehyde )和尿素甲醛（urea formaldehyde)之包囊壁’藉以包封染料/液晶（染料及液 晶所成混合體）散佈之微滴。 經濟部智慧財產局員工消費合作社印製 首先，製備染料/液晶和poly isocyanate之均勻溶液。 將一水性乳劑注入於長頸燒杯中，並放置於攝氏50度之 水槽中。接著將該poly isocyanate/染料/液晶溶劑加入該水 性乳劑溶液中，並充分攪拌直到得到所需大小之液晶微滴 (2〜3微米）。接著降低攪拌的速度，反應在攝氏5〇度持 糸賈8〜1 0小時。在反應的時候，加入ρ 〇 1 y 〇 1和及或p 〇 1 y a m i n e 和催化劑，在聚合化程序的終了，加入氨水溶劑，藉以硬 化殘餘的活性NCO基。所產生之泥漿（slurry )經由離心 機純化，藉以去除多餘的反應物和乳化介質，如此即可獲 得純化之液晶微包囊之濕餅（wet cake)。該包囊壁由聚 氨基甲酸酯/聚尿素（P〇lyurethane/polyurea )或聚尿素 (polyurea )所製成。 另一微包囊化之方法是在次乙順丁烯二酐（EMA )共 聚合物水溶液中乳化雙向色性染料/液晶。該乳化介質是藉 由將次乙順丁烯二酐（EMA )共聚合物在微溫之溫度下^ 解於水中，且加入氫氧化鈉溶液將其酸鹼値調至4至5之 第9頁 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 500960 A7 _____B7 五、發明說明（） 間。該微包囊化之方法需於攝氏60至90度時加入3 0 %之 Cymel 372水溶液，以形成一三聚氰胺甲醛薄膜，以包覆 經濟部智慧財產局員工消費合作社印製 該液晶微滴。 所形成之液晶微包囊藉由離心機加以純化， 以形成濕餅。 第一圖所示使用於單層彩色液晶顯示器之該三種黑 色微包囊液晶 (MLC)材料具有下列之成分： 黑色雙向色性/等向性MLC ON狀態之顏色 雙向色性染料 等向性染料 綠/藍 紅 紅 紅/藍 綠 綠 紅/綠 藍 藍 單層彩色液晶顯示器亦可由黑色雙向色性液晶微包 囊（MLC)和 三等向性紅、綠、 藍之包囊依照下列三種組 合所製成。該彩色液晶顯示器5 :結構如第二圖所示。 黑色雙向色性 等向性染料 ON狀態 之顏色 MLC 紅/綠/藍 紅 紅 紅/綠/藍 綠 綠 紅/綠/藍 藍 藍 第10頁 !--------#--------^---------^0 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） 500960 A7 —--- B7 五、發明說明（） (請先閲讀背面之注咅？事項再填寫本頁) 該主要之等向性染料或顏料亦可直接溶解或散佈於 黏合劑中’接著將之與亦可由黑色主從雙向色性液晶微包 囊材料混合’形成彩色液晶顯示器印刷墨汁。該彩色液晶 顯示器之結構如第三圖所示。 散佈聚合物之液晶微包囊（MLC)之製備 純化之染料及液晶包囊餅（cake )經過與黏合劑和界 面活性劑的充分混合，能夠塗覆或印刷於鍍銦錫氧化物 (ITO )基板之上。接著，一層可經紫外線硬化之光學黏 著劑覆蓋於該主從散佈聚合物液晶微包囊（PDMLC )薄膜 之上，並接著層積另一層鍍銦錫氧化物（IT〇)基板，藉 以形成散佈聚合物液晶微包囊（PDMLC )顯示器。該彩色 液晶顯示器可由附著一濾色片於該散佈聚合物液晶微包 囊（PDMLC )薄膜之上製成。當該三種主要液晶微包囊 (MLC)材料被印刷於具有分別以；[)馬賽克（m〇saic)、 2 )條狀（stripe ) 、3 )三個一組（triad )的方式排列之 鍍銦錫氧化物（ITO )基板，一單層濾色片及主從液晶顯 示器即可製得。 經濟部智慧財產局員工消費合作社印製 接著請參考第一圖，本發明之多色液晶顯示器1基本 上由一玻璃基板2，其中共通銦錫氧化物（IT 0 ) 3、像素 銦錫氧化物（ITO ) 4和一層黑色主從（GH )散佈聚合物 液晶微包囊（PDMLC )材料5散佈於黏合劑6。該散佈聚 合物液晶微包囊（PDMLC )薄膜中之黑色微包囊由一包囊^ 壁7、液晶8、二雙向色性染料9和一等向染料1 0所組成。 第11頁 本紙張尺度適用中國國家標準（CNS)A4規袼（210 X 297公釐） 500960 A7 B7 五、發明說明（） 在OFF狀態下，該包囊中之該液晶8和該染料分子9、1 0 是散亂地指向各個方向，並散射及吸收入射光。由於並沒 有光線或色彩之輸出，該顯示器呈現黑色。在ON狀態下， 該包囊中之該液晶和雙向色性染料分子均依照外加之電 磁場平行排列’而只有等向染料顯現出顏色。當該三種次 像素都處於ON狀態時，該顯示器呈現白色。 請參考第二圖，本發明之另一多色液晶顯示器由一黑 色主從（GH )散佈聚合物液晶微包囊（pDMLC ) 5和包含 等向染料包囊1 1之黏合劑6所組成。在OFF狀態下，該 顯示器呈現黑色。當該紅色次像素之一當該三種次像素都 處於ON狀態時，該液晶8和該雙向色性染料9均依照外 加之電磁場平行排列，而只有等向性染料1 0顯現出對應 之紅色。 同樣地，於第三圖中，當紅綠次像素處於ON狀態時， 綠色染料1 〇或顏料1 0散佈於該黏合劑6中，致使該顯示 器呈現綠色。 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 第12頁 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐）Drawing number contrast description I 1 Multi-color LCD 2 Glass substrate 3 Common ITO 4 Pixel ITO 5 Black master-slave polymer liquid crystal micro-encapsulated half-bucket 6 Adhesive 7 Encapsulation wall 8 Liquid crystal 9 Bi-chromatic dye 10 Isotropic dye 11 Isotropic dye capsule Detailed description of the invention: — Preparation of liquid crystal microencapsulation (MLC) Page 8 This paper applies Chinese national standard (CNS) A4 specifications (210 X 297 mm) (Please read the notes on the back before filling in this page) i. Order ------------ line. 500960 A7 ______ B7 V. Description of the invention () This The microcapsules containing liquid crystals and dyes in the invention are made according to the methods disclosed in U.S. Patent Applications 08/8275 74 and 09/0423 94. (Please read the precautions on the back before filling this page) According to the present invention, the liquid crystal microencapsulation (MLC) material can be made by an interface polymerization method to form polyurethane / polyurea, polyurea The envelope wall of urea, polyurea, melamine formaldehyde and urea formaldehyde is used to encapsulate the droplets dispersed by the dye / liquid crystal (mixture of dye and liquid crystal). Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs First, prepare a homogeneous solution of dye / liquid crystal and poly isocyanate. An aqueous emulsion was poured into a long-necked beaker and placed in a water tank at 50 ° C. Then add the poly isocyanate / dye / liquid crystal solvent to the aqueous emulsion solution, and stir well until liquid crystal droplets (2 ~ 3 microns) of the required size are obtained. Then reduce the speed of stirring, the reaction is held at 50 degrees Celsius for 8 to 10 hours. At the time of the reaction, ρ 〇 1 y 〇 1 and / or p 〇 1 y a m i n e and a catalyst were added. At the end of the polymerization process, an aqueous ammonia solvent was added to harden the remaining active NCO groups. The produced slurries are purified by a centrifuge to remove excess reactants and emulsifying media, so that a purified liquid crystal microencapsulated wet cake can be obtained. The capsule wall is made of polyurethane / polyurea or polyurea. Another method of microencapsulation is to emulsify the dichroic dye / liquid crystal in an aqueous solution of ethylene glycol maleic anhydride (EMA) copolymer. The emulsification medium is obtained by dissolving ethylene maleic anhydride (EMA) copolymer in water at a mild temperature, and adding sodium hydroxide solution to adjust its acid-base ratio to 9th from 4 to 5. The paper size of this page applies to China National Standard (CNS) A4 (210 X 297 mm) 500960 A7 _____B7 V. Description of the invention (). The microencapsulation method requires adding 30% Cymel 372 aqueous solution at 60 to 90 degrees Celsius to form a melamine formaldehyde film to cover the liquid crystal droplets printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The formed liquid crystal microcapsules are purified by a centrifuge to form a wet cake. The three black microencapsulated liquid crystal (MLC) materials used in the single-layer color liquid crystal display shown in the first figure have the following components: black bidirectional chromaticity / isotropic MLC ON color bidirectional dichroic dye isotropic dye The green / blue-red-red-red / blue-green-green-red / green-blue single-layer color liquid crystal display can also be composed of black bi-directional chroma liquid crystal microcapsules (MLC) and tri-isotropic red, green, and blue capsules according to the following three combinations production. The color liquid crystal display 5 has a structure as shown in the second figure. Black bidirectional chromatic isotropic dye ON state color MLC Red / Green / Blue Red Red / Green / Blue Green Green Red / Green / Blue Blue Page 10! -------- # ---- ---- ^ --------- ^ 0 (Please read the precautions on the back before filling in this page) The paper size is applicable to China National Standard (CNS) A4 (210 X 297 mm) 500960 A7 ———- B7 V. Description of the invention () (Please read the note on the back? Matters before filling out this page) The main isotropic dye or pigment can also be directly dissolved or dispersed in the adhesive 'and then mixed with It can also be mixed with black master-slave bi-directional chromatic liquid crystal microencapsulation materials to form a color liquid crystal display printing ink. The structure of the color liquid crystal display is shown in the third figure. Preparation of Liquid Crystal Microencapsulated (MLC) Dispersing Polymer Purified dye and liquid crystal encapsulated cake can be coated or printed on indium tin oxide (ITO) after thorough mixing with binder and surfactant. On the substrate. Next, a layer of UV-curable optical adhesive covers the master-slave dispersed polymer liquid crystal microencapsulated (PDMLC) film, and then another layer of indium tin oxide (IT0) substrate is laminated to form a dispersion. Polymer liquid crystal microencapsulated (PDMLC) display. The color liquid crystal display can be made by attaching a color filter on the interspersed polymer liquid crystal microcapsule (PDMLC) film. When the three main liquid crystal microencapsulated (MLC) materials are printed on a plate having a pattern of [] mosaic (mosaic), 2) stripe (3), and 3) (triad) An indium tin oxide (ITO) substrate, a single-layer color filter and a master-slave liquid crystal display can be prepared. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Please refer to the first figure. The multi-color liquid crystal display 1 of the present invention is basically composed of a glass substrate 2 in which common indium tin oxide (IT 0) 3 and pixel indium tin oxide are used. (ITO) 4 and a layer of black master-slave (GH) dispersed polymer liquid crystal microencapsulated (PDMLC) material 5 are dispersed in the adhesive 6. The black microcapsules in the dispersed polymer liquid crystal microencapsulation (PDMLC) film are composed of a capsule 7, a liquid crystal 8, a dichroic dye 9, and an isotropic dye 10. Page 11 This paper size applies the Chinese National Standard (CNS) A4 regulations (210 X 297 mm) 500960 A7 B7 V. Description of the invention () In the OFF state, the liquid crystal 8 and the dye molecule 9 in the capsule , 1 0 are scattered in various directions, and scatter and absorb incident light. Since there is no light or color output, the display appears black. In the ON state, the liquid crystal and dichroic dye molecules in the capsule are arranged in parallel according to the applied electromagnetic field ', and only the isotropic dye develops color. When all three sub-pixels are ON, the display appears white. Referring to the second figure, another multi-color liquid crystal display of the present invention is composed of a black master-slave (GH) dispersed polymer liquid crystal microencapsulation (pDMLC) 5 and an adhesive 6 containing an isotropic dye capsule 11. In the OFF state, the display appears black. When one of the red sub-pixels is in the ON state, the liquid crystal 8 and the bi-chromatic dye 9 are arranged in parallel according to the applied electromagnetic field, and only the isotropic dye 10 shows a corresponding red color. Similarly, in the third figure, when the red and green sub-pixels are in the ON state, a green dye 10 or a pigment 10 is dispersed in the adhesive 6 to cause the display to appear green. (Please read the notes on the back before filling out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Page 12 This paper size applies to China National Standard (CNS) A4 (210 X 297 mm)