JPH03168613A - Production of transfer sheet and liquid crystal display element - Google Patents
Production of transfer sheet and liquid crystal display elementInfo
- Publication number
- JPH03168613A JPH03168613A JP30743889A JP30743889A JPH03168613A JP H03168613 A JPH03168613 A JP H03168613A JP 30743889 A JP30743889 A JP 30743889A JP 30743889 A JP30743889 A JP 30743889A JP H03168613 A JPH03168613 A JP H03168613A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- layer
- crystal display
- display element
- transfer sheet
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 33
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000010410 layer Substances 0.000 claims abstract description 45
- 239000012790 adhesive layer Substances 0.000 claims abstract description 23
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 230000001070 adhesive effect Effects 0.000 claims description 27
- 239000000853 adhesive Substances 0.000 claims description 26
- 229920000106 Liquid crystal polymer Polymers 0.000 claims description 17
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims description 6
- 239000002985 plastic film Substances 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 abstract description 2
- 239000013078 crystal Substances 0.000 abstract 5
- 238000010030 laminating Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- -1 color filters Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000976 ink Substances 0.000 description 3
- 230000005865 ionizing radiation Effects 0.000 description 3
- 238000001259 photo etching Methods 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 229910001887 tin oxide Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003849 aromatic solvent Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000005453 ketone based solvent Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000008096 xylene Substances 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）
本発明は転写シート及び液晶表示素子の製造方法に関し
，更に詳しくは、液晶表示素子を高精度及び大画面に、
容易に且つ経済的に提供可能な転写シート及び該転写シ
ートを用いる液晶表示素子の製造方法に関する．
（従来の技術及びその問題点）
従来、液晶を使用したモノカラー及びマルチカラーの液
晶表示素子は、例えば、時計、計算機、ワープロ、パソ
コン、テレビ等のデジタル表示や画像表示に広く使用さ
れている。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a method for manufacturing a transfer sheet and a liquid crystal display element, and more particularly, to a method for producing a liquid crystal display element with high precision and a large screen.
This invention relates to a transfer sheet that can be provided easily and economically, and a method for manufacturing a liquid crystal display element using the transfer sheet. (Prior art and its problems) Conventionally, monocolor and multicolor liquid crystal display elements using liquid crystals have been widely used for digital displays and image displays in, for example, watches, calculators, word processors, personal computers, televisions, etc. .
上記液晶表示素子は、少なくとも一方が透明である一対
のガラス基板の間に、少なくとも一方が透明である一対
の電極を形戊し、更に必要に応じてカラーフィルターを
介在させて、上記一対の電極間に液晶を封止した構成を
有している。The above-mentioned liquid crystal display element has a pair of electrodes, at least one of which is transparent, formed between a pair of glass substrates, at least one of which is transparent. It has a structure in which liquid crystal is sealed in between.
上記液晶表示素子の製造に際しては、基板であるガラス
に、該基板毎に、電極層、カラーフィルター及び液晶を
、フォトエッチング法、コーティング法又は印刷方法等
によって形成しているが、これらの各層の形或には高精
度が要求される為、不良品が発生し易く、又、生産性が
低いという問題がある．
又、液晶表示素子が大画面になる程、それだけ高い精度
が要求される結果、大画面液晶表示素子の提供は技術的
に非常に困難である．
又、歩留まりが良くない結果、不良品の発生は高価なガ
ラス基板を浪費することになり、結果としてコスト高に
なっている．
更に基板としてガラスを使用する結果、複雑な曲面形状
を有する液晶表示素子を形成することが非常に困難であ
るという問題がある。In manufacturing the above-mentioned liquid crystal display elements, electrode layers, color filters, and liquid crystals are formed on the glass substrate by photo-etching, coating, printing, etc. for each substrate. Since high precision is required in terms of shape, there are problems in that defective products are likely to occur and productivity is low. Furthermore, the larger the screen of a liquid crystal display element, the higher the precision required, making it technically very difficult to provide a large-screen liquid crystal display element. In addition, as a result of poor yields, the production of defective products results in wasted expensive glass substrates, resulting in high costs. Furthermore, as a result of using glass as a substrate, there is a problem in that it is very difficult to form a liquid crystal display element having a complicated curved shape.
従って、本発明の目的は、上記従来技術の問題点を解決
し、液晶表示素子を高精度及び大画面に、容易に且つ経
済的に提供可能な転写シート及び液晶表示素子の製造方
法を提供することである。Therefore, an object of the present invention is to provide a transfer sheet and a method for manufacturing a liquid crystal display element that can solve the problems of the prior art and easily and economically provide a liquid crystal display element with high precision and a large screen. That's true.
（問題点を解決する為の手段） 上記目的は以下の本発明によって達成される。(Means for solving problems) The above objects are achieved by the present invention as described below.
即ち、本発明は、剥離性基材シート、電極層、液晶ポリ
マー層、電極層及び接着剤層がこの記載の順序に積層さ
れていることを特徴とする転写シート、及び該転写シー
トを、液晶表示素子用基板に接着し、しかる後に基材シ
ートを剥離することを特徴とする液晶表示素子の製造方
法である．
（作 用）
剥離性基材シート、電極層、液晶ポリマー層、電極層及
び接着剤層がこの記載の順序に積層されてなる転写シー
トを、液晶表示素子用基板に接着し、しかる後に基材シ
ートを剥離することによって、液晶表示素子を高精度及
び大画面に、容易に且つ経済的に提供することが出来る
．
（好ましい実施態様）
次に好ましい実施態様を挙げて本発明を更に具体的に説
明する．
本発明の転写シートは，第１図にその断面を図解的に示
す様に、剥離性基材シートｌ、電極層２、液晶ポリマー
層３、電極層４及び接着剤層５がこの記載の順序に積層
されていることを特徴としている．
基材シート１としては、紙、加工紙、合成紙等の紙、ポ
リエチレンテレフタレート、ポリブチレンテレフタレー
ト、ポリエチレンテレフタレート／イソフタレート共重
合体等のポリエステル、ポリエチレン、ポリブロビレン
、ポリメチルベンテン等のポリオレフィン、ポリ塩化ビ
ニル、ポリカーボネート、ポリイミド、ポリアセクール
、ポリアリレート等の如きプラスチックシート或いはこ
れらの積層物等が任意に使用されるが、好ましいものは
熱や湿度の変化に対しても寸法精度に優れ、且つ安価で
あるポリエチレンテレフタレートフィルムである．
これらの基材シートｌは任意の厚みでよいが、好ましい
厚みは５乃至ｌＯＯμｍの範囲である。That is, the present invention provides a transfer sheet characterized in that a releasable base sheet, an electrode layer, a liquid crystal polymer layer, an electrode layer, and an adhesive layer are laminated in the order described above, and the transfer sheet is also provided with a liquid crystal layer. This is a method for manufacturing a liquid crystal display element, which is characterized by adhering to a display element substrate and then peeling off the base material sheet. (Function) A transfer sheet in which a releasable base sheet, an electrode layer, a liquid crystal polymer layer, an electrode layer, and an adhesive layer are laminated in the order described above is adhered to a substrate for a liquid crystal display element, and then the base material By peeling off the sheet, a liquid crystal display element with high precision and a large screen can be provided easily and economically. (Preferred Embodiments) Next, the present invention will be explained in more detail by citing preferred embodiments. In the transfer sheet of the present invention, as its cross section is diagrammatically shown in FIG. It is characterized by being laminated into layers. As the base sheet 1, paper such as paper, processed paper, synthetic paper, polyester such as polyethylene terephthalate, polybutylene terephthalate, polyethylene terephthalate/isophthalate copolymer, polyolefin such as polyethylene, polybrobylene, polymethylbentene, polychloride, etc. Plastic sheets such as vinyl, polycarbonate, polyimide, polyacecool, polyarylate, etc. or laminates thereof can be used as desired, but preferred ones have excellent dimensional accuracy against changes in heat and humidity and are inexpensive. It is a polyethylene terephthalate film. These base sheets 1 may have any thickness, but the preferred thickness is in the range of 5 to 100 μm.
又、これらの基材シート１はその表面が剥離処理されて
いるのが好ましく、例えば、ワックス、シリコーンオイ
ル、シリコーン樹脂、メラミン樹脂、弗素樹脂、ポリオ
レフィン樹脂等の剥離剤によって、その表面に薄い剥離
層６が形成されていることが好ましい。Further, the surface of these base sheets 1 is preferably subjected to a release treatment, for example, a thin release treatment is applied to the surface using a release agent such as wax, silicone oil, silicone resin, melamine resin, fluororesin, polyolefin resin, etc. Preferably, layer 6 is formed.
基材表面に形成する電極層２は、アルミニウム、銀、金
、酸化錫、酸化インジウム、ＩＴＯ等の如き導電性材料
からなり、公知のフォトエッチング法、印刷方法等によ
ってマトリックス状に形成される．特に好ましい電極層
２は透明な酸化錫やＩＴＯから０．２乃至０．３μｍの
厚みに形成される．
本発明の転写シートが，カラーディスプレイ用転写シー
トである場合には、上記電極Ｈ２の表面にＲ，Ｇ．Ｂか
らなるカラーフィルター７を形成する．該カラーフィル
ター７も公知のフォトエッチング法、染色法、印刷方法
等によって形成され、好ましい厚みはＯ．ｌ乃至１０Ｌ
Ｌｍである。The electrode layer 2 formed on the surface of the base material is made of a conductive material such as aluminum, silver, gold, tin oxide, indium oxide, ITO, etc., and is formed in a matrix shape by a known photoetching method, printing method, etc. A particularly preferable electrode layer 2 is formed from transparent tin oxide or ITO to a thickness of 0.2 to 0.3 μm. When the transfer sheet of the present invention is a transfer sheet for a color display, R, G. A color filter 7 consisting of B is formed. The color filter 7 is also formed by a known photo-etching method, dyeing method, printing method, etc., and the preferred thickness is O. l to 10L
It is Lm.
モノカラー用の場合には該カラーフィルター７の形成は
必須ではない。In the case of monochrome use, the formation of the color filter 7 is not essential.
上記電極層２又はカラーフィルター７上に形成する液晶
ポリマーＭ３は、液晶表示素子用として従来公知である
液晶ポリマーから形成する。これらの液晶ポリマーは、
従来に液晶分子をアクリル系やシロキサン系の高分子の
側鎖として結合させたものであり、例えば、下記の如き
構造式で示される．
以上の例は１例であり、その他公知のいずれの液晶ポリ
マーも本発明で使用することが出来る．これらの液晶ポ
リマーは加熱により液状化したり，適当な溶剤、例えば
、イソブロパノール等のアルコール系溶剤、アセトン、
メチルエチルケトン等のケトン系溶剤、トルエン、キシ
レン等の芳香族系溶剤、酢酸エチル、酢酸ブチル等のエ
ステル系溶剤等によりインキ化又が塗料化したものにス
ペーサー用の一定球径のガラスビーズ８やガラス繊維を
混合分散し、これをコーティング法や印刷方法等により
５乃至１０ｕｍの厚みに形成する．印刷する形状は、数
字、文字、図形等の模様状の他、べ夕であってもよい．
勿論、これらの液晶ポリマーを含むインキは印刷時にお
いてはある程度の流動性を有する為に、予め電極層２又
はカラーフィルター７上に適当なインキにより枠取りの
印刷（図示なし）を施しておくことが出来る。The liquid crystal polymer M3 formed on the electrode layer 2 or the color filter 7 is formed from a conventionally known liquid crystal polymer for use in liquid crystal display elements. These liquid crystal polymers are
Conventionally, liquid crystal molecules are bonded as side chains of acrylic or siloxane polymers, and are represented by the following structural formula, for example. The above example is just one example, and any other known liquid crystal polymers can be used in the present invention. These liquid crystal polymers can be liquefied by heating or treated with a suitable solvent, such as alcoholic solvents such as isopropanol, acetone,
Glass beads 8 of a fixed spherical diameter for spacers or glass are made into ink or paint using ketone solvents such as methyl ethyl ketone, aromatic solvents such as toluene and xylene, and ester solvents such as ethyl acetate and butyl acetate. The fibers are mixed and dispersed and formed into a thickness of 5 to 10 um by a coating method, printing method, etc. The shapes to be printed may be patterns such as numbers, letters, and figures, as well as solid shapes. Of course, since inks containing these liquid crystal polymers have a certain degree of fluidity during printing, it is necessary to print a frame (not shown) on the electrode layer 2 or the color filter 7 with an appropriate ink in advance. I can do it.
又，液晶ボリマ一層の形成に際しては、液晶ポリマーの
液晶基の初期配内方向を揃える為に、酸化硅素の斜方蒸
着や配向ポリイミド膜を施し、等方相転移温度付近で数
時間アニールすることが好ましい．
又、該液晶ポリマー層３には、液晶ポリマーとホストー
ゲスト関係にある二色性色素（図示なし）を配合してカ
ラー表示用液晶ポリマー層３とすることが出来る．
又、上記液晶ポリマー層３は、高粘度である為、応答速
度が室温付近では遅い場合があるので、この場合には、
使用時に等方相転移温度付近まで温度バイアスをかけて
電場を印加することが好ましい．
上記液晶ポリマー層３上に形成する電極層４は、前記電
極層２と同一でよいが、電極層２及び４の少なくとも一
方は透明電極とすることが必要である．
上記電極層４上に形成する接着剤層５は、種々の材料か
ら形成することが出来、接着剤層５の例としては、周知
の粘着シート等に使用されている様な粘着剤、感熱接着
剤、電離放射線硬化性接着剤等が挙げられる．粘着剤は
操作が簡便であるが接着強度等の安定性が十分でなく、
又、感熱接着剤は転写時に加熱が要求される結果、熱に
よる各層の伸縮による精度の不安がある為、最も好まし
い接着剤は電離放射線硬化性接着剤である。In addition, when forming a single layer of liquid crystal polymer, in order to align the initial alignment direction of the liquid crystal groups of the liquid crystal polymer, it is necessary to perform oblique vapor deposition of silicon oxide or apply an oriented polyimide film, and then anneal it for several hours at around the isotropic phase transition temperature. is preferable. Further, the liquid crystal polymer layer 3 can be blended with a dichroic dye (not shown) which has a host-guest relationship with the liquid crystal polymer to form the liquid crystal polymer layer 3 for color display. Furthermore, since the liquid crystal polymer layer 3 has a high viscosity, the response speed may be slow near room temperature.
During use, it is preferable to apply an electric field with a temperature bias close to the isotropic phase transition temperature. The electrode layer 4 formed on the liquid crystal polymer layer 3 may be the same as the electrode layer 2, but at least one of the electrode layers 2 and 4 must be a transparent electrode. The adhesive layer 5 formed on the electrode layer 4 can be formed from various materials. Examples of the adhesive layer 5 include adhesives such as those used in well-known adhesive sheets, heat-sensitive adhesives, etc. and ionizing radiation-curable adhesives. Adhesives are easy to operate, but they do not have sufficient stability such as adhesive strength.
Furthermore, since heat-sensitive adhesives require heating during transfer, there is concern about accuracy due to expansion and contraction of each layer due to heat, so the most preferred adhesive is an ionizing radiation-curable adhesive.
電離放射線硬化性接着剤とは、接着剤中に重合性二重結
合を有する成分、例えば、各種アクリレート等のモノマ
ーやオリゴマーを含み、必要に応じて光重合開始剤を含
むものであり、例えば、紫外線や電子線の照射によって
重合硬化して接着性を発揮するものである。An ionizing radiation curable adhesive is one that contains a component having a polymerizable double bond in the adhesive, such as monomers and oligomers such as various acrylates, and optionally contains a photopolymerization initiator, such as: It exhibits adhesive properties by polymerizing and curing by irradiation with ultraviolet rays or electron beams.
これらの電離放射線硬化性接着剤自体は種々公知であり
、例ば、硬化前はモノマーや溶剤によって液状であるも
のや、塗布後の溶剤の蒸発によって常温で固体の被膜を
形成する固体接着剤等、公知のものはいずれも本発明で
使用することが出来る。There are various types of ionizing radiation-curable adhesives that are known, such as those that are liquid due to monomers and solvents before curing, and solid adhesives that form a solid film at room temperature by evaporation of the solvent after application. Any known material can be used in the present invention.
本発明においては、使用時には溶剤を含むことによって
液状であり、塗布後には溶剤の蒸発によって実質的に固
体である層を形成する電離放射線硬化性接着剤が特に好
ましい．即ち、該接着剤を使用することにより、接着剤
の塗布時には加熱が不要であり、又、乾燥時にも低温乾
燥が可能で且つ巻き取り可能であり、更に転写時にも加
熱が不要である為、加熱一冷却による各層の伸縮による
見当ずれが発生しない．
又、この様な接着剤を用いることにより、液晶表示素子
用基板である被転写材はガラスに限定されず、耐熱性の
低いプラスチックシートやフィルムも使用出来るという
顕著な効果がある．但し，係る接着剤を使用する場合に
は、前記基材シート１は電離放射線に対して透過性であ
るのが好ましい．もっとも．電離放射線照射を基板であ
る被転写材側から行う場合には、基材シートは透過性で
あることは必須ではない．
以上の如く構或される転写シートの接着剤層５が粘着剤
からなる場合には、該粘着剤層５に離型紙９を接着して
おくことが好ましい．
本発明の液晶表示素子の製造方法は、上記の本発明の転
写シートを使用することを内容としており、第２図に図
解的に示す様に、上記の転写シートを基板２０に対して
接着剤層５を対向させて接看し、しかる後に基材シート
１を剥離することを特徴としている．
本発明で使用する基板２０の例としては，従来の液晶表
示素子に広く使用されているガラス基板がそのまま使用
出来ると共に、ポリアクリレート，ポリエステル、ボリ
スチレン、ポリカーボネート等の透明性に優れたシート
又はフィルムも使用出来，特にこれらのプラスチック基
板はその表面が更に複雑な形状であってもよい．以上の
如き基板の厚みは５０乃至１ ０００μｍ程度が好まし
い範囲である．
接着剤層５が粘着剤からなる場合には、必要に応じて離
型紙９を剥離し、接着剤層５を基板２０に粘着させ、基
材シートｌを剥離することによって転写が完了する。又
、接着剤層５が感熱接着剤からなる場合には、接着剤層
５を基板２０に対向させて重ねた後、必要な圧力と熱を
加えることによって接着剤層５を活性化させ，しかる後
に基材シートｌを剥離することによって転写が完了する
．又、接着剤層５が電離放射線硬化性接着剤からなる場
合には、同様に基板２０に対向させて重ねた後、基板２
０側又は基材シート１側から紫外線又は電子Ｉｔ！ （
矢印）を照射させ、接着剤層５を活性化し、しかる後に
基材シート１を剥離することによって転写が完了し、所
望の液晶表示素子が提供される．
（効 果）
以上の如き本発明によれば，従来技術の種々の問題点が
解決され、液晶表示素子を高精度及び大画面に，容易に
且つ経済的に提供することが出来る．In the present invention, ionizing radiation-curable adhesives are particularly preferred, which are liquid when used due to the inclusion of a solvent, and which form a substantially solid layer upon evaporation of the solvent after application. That is, by using the adhesive, heating is not required when applying the adhesive, and it is possible to dry at a low temperature and can be rolled up, and furthermore, heating is not required during transfer. Misregistration does not occur due to expansion and contraction of each layer during heating and cooling. Furthermore, by using such an adhesive, the material to be transferred, which is the substrate for a liquid crystal display element, is not limited to glass, but has the remarkable effect that plastic sheets and films with low heat resistance can also be used. However, when such an adhesive is used, the base sheet 1 is preferably transparent to ionizing radiation. Of course. When irradiating ionizing radiation from the side of the transfer material, which is the substrate, it is not essential that the base sheet be transparent. When the adhesive layer 5 of the transfer sheet constructed as described above is made of an adhesive, it is preferable to adhere a release paper 9 to the adhesive layer 5. The method for manufacturing a liquid crystal display element of the present invention includes using the transfer sheet of the present invention described above, and as schematically shown in FIG. The method is characterized in that the layers 5 are brought into contact with each other facing each other, and then the base sheet 1 is peeled off. As examples of the substrate 20 used in the present invention, glass substrates widely used in conventional liquid crystal display devices can be used as they are, and sheets or films with excellent transparency such as polyacrylate, polyester, polystyrene, and polycarbonate can also be used. In particular, these plastic substrates may have more complex shapes on their surfaces. The preferred thickness of the substrate as described above is about 50 to 1000 μm. When the adhesive layer 5 is made of an adhesive, the release paper 9 is peeled off as necessary, the adhesive layer 5 is made to adhere to the substrate 20, and the base sheet 1 is peeled off to complete the transfer. In addition, when the adhesive layer 5 is made of a heat-sensitive adhesive, after the adhesive layer 5 is stacked facing the substrate 20, the adhesive layer 5 is activated by applying necessary pressure and heat, and then the adhesive layer 5 is activated. The transfer is then completed by peeling off the base sheet l. In addition, when the adhesive layer 5 is made of an ionizing radiation-curable adhesive, the substrate 20 is similarly stacked facing the substrate 20, and then the substrate 2
Ultraviolet rays or electronic It! from the 0 side or the base sheet 1 side! (
The transfer is completed by irradiating the adhesive layer 5 with an arrow (arrow) to activate the adhesive layer 5 and then peeling off the base sheet 1, and a desired liquid crystal display element is provided. (Effects) According to the present invention as described above, various problems of the prior art are solved, and a liquid crystal display element with high precision and a large screen can be provided easily and economically.
第１図及び第２図は本発明の転写シート及び方法を図解
的に説明する図である．
ｌ二基材シート ２：電極層
３：液晶層 ４：電極層
５：接着剤層 ６：剥離層
７：カラーフィルター ８：スベーサ−９＝離型紙
２０：基板FIGS. 1 and 2 are diagrams illustrating the transfer sheet and method of the present invention. 12 base material sheet 2: electrode layer 3: liquid crystal layer 4: electrode layer 5: adhesive layer 6: release layer 7: color filter 8: substrate 9 = release paper
20: Substrate
Claims (9)
極層及び接着剤層がこの記載の順序に積層されているこ
とを特徴とする転写シート。(1) A transfer sheet characterized in that a releasable base sheet, an electrode layer, a liquid crystal polymer layer, an electrode layer, and an adhesive layer are laminated in this order.
）に記載の転写シート。(2) Claim (1) wherein at least one of the electrode layers is transparent.
) transfer sheet.
写シート。(3) The transfer sheet according to claim (1), containing a color filter.
項（１）に記載の転写シート。(4) The transfer sheet according to claim (1), wherein the adhesive layer comprises an ionizing radiation-curable adhesive.
項（４）に記載の転写シート。(5) The transfer sheet according to claim (4), wherein the ionizing radiation-curable adhesive is solid at room temperature.
極層及び接着剤層がこの記載の順序に積層されている転
写シートを、液晶表示素子用基板に接着し、しかる後に
基材シートを剥離することを特徴とする液晶表示素子の
製造方法。(6) A transfer sheet in which a releasable base sheet, an electrode layer, a liquid crystal polymer layer, an electrode layer, and an adhesive layer are laminated in the order described above is adhered to a substrate for a liquid crystal display element, and then the base sheet 1. A method for manufacturing a liquid crystal display element, which comprises peeling off.
項（６）に記載の液晶表示素子の製造方法。(7) The method for manufacturing a liquid crystal display element according to claim (6), wherein the adhesive layer is made of an ionizing radiation-curable adhesive.
項（７）に記載の液晶表示素子の製造方法。(8) The method for manufacturing a liquid crystal display element according to claim (7), wherein the ionizing radiation-curable adhesive is solid at room temperature.
求項（６）に記載の液晶表示素子の製造方法。(9) The method for manufacturing a liquid crystal display element according to claim (6), wherein the substrate is a plastic sheet or film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30743889A JP2807510B2 (en) | 1989-11-29 | 1989-11-29 | Method for manufacturing transfer sheet and liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30743889A JP2807510B2 (en) | 1989-11-29 | 1989-11-29 | Method for manufacturing transfer sheet and liquid crystal display element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03168613A true JPH03168613A (en) | 1991-07-22 |
| JP2807510B2 JP2807510B2 (en) | 1998-10-08 |
Family
ID=17969077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30743889A Expired - Fee Related JP2807510B2 (en) | 1989-11-29 | 1989-11-29 | Method for manufacturing transfer sheet and liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2807510B2 (en) |
Cited By (19)
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|---|---|---|---|---|
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| US5193021A (en) * | 1990-12-22 | 1993-03-09 | Samsung Electron Device Co., Ltd. | Film spacer and method for fabricating liquid crystal cell using the same |
| JPH08254690A (en) * | 1995-03-16 | 1996-10-01 | Oike Ind Co Ltd | Composite body for film liquid crystal display |
| WO2000033128A1 (en) * | 1998-11-27 | 2000-06-08 | Hitachi Maxell, Ltd. | Liquid crystal display device and liquid crystal production method |
| US6151153A (en) * | 1998-06-16 | 2000-11-21 | Photon Dynamics, Inc. | Modulator transfer process and assembly |
| JP2003525468A (en) * | 2000-03-02 | 2003-08-26 | リサーチ フロンティアーズ インコーポレイテッド | Method and material for enhancing adhesion of SPD film and light valve containing same |
| EP1347313A1 (en) * | 2000-12-27 | 2003-09-24 | Dai Nippon Printing Co., Ltd. | Liquid crystal transfer body and method of transferring the liquid crystal transfer body |
| EP1367431A3 (en) * | 1996-09-19 | 2004-01-21 | Seiko Epson Corporation | Matrix type display device and manufacturing method thereof |
| US6863961B2 (en) | 1996-11-25 | 2005-03-08 | Seiko Epson Corporation | Method of manufacturing organic EL element, organic EL element, and organic EL display device |
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| US7067337B2 (en) | 1996-05-15 | 2006-06-27 | Seiko Epson Corporation | Thin film device provided with coating film, liquid crystal panel and electronic device, and method for making the thin film device |
| GB2428860A (en) * | 2004-01-28 | 2007-02-07 | Kent Displays Inc | Drapable liquid crystal transfer display films |
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1989
- 1989-11-29 JP JP30743889A patent/JP2807510B2/en not_active Expired - Fee Related
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|---|---|---|---|---|
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| US5193021A (en) * | 1990-12-22 | 1993-03-09 | Samsung Electron Device Co., Ltd. | Film spacer and method for fabricating liquid crystal cell using the same |
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| US7067337B2 (en) | 1996-05-15 | 2006-06-27 | Seiko Epson Corporation | Thin film device provided with coating film, liquid crystal panel and electronic device, and method for making the thin film device |
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| EP1365276A3 (en) * | 1996-09-19 | 2004-01-21 | Seiko Epson Corporation | Matrix type display device and manufacturing method thereof |
| US6863961B2 (en) | 1996-11-25 | 2005-03-08 | Seiko Epson Corporation | Method of manufacturing organic EL element, organic EL element, and organic EL display device |
| US6151153A (en) * | 1998-06-16 | 2000-11-21 | Photon Dynamics, Inc. | Modulator transfer process and assembly |
| WO2000033128A1 (en) * | 1998-11-27 | 2000-06-08 | Hitachi Maxell, Ltd. | Liquid crystal display device and liquid crystal production method |
| JP2003525468A (en) * | 2000-03-02 | 2003-08-26 | リサーチ フロンティアーズ インコーポレイテッド | Method and material for enhancing adhesion of SPD film and light valve containing same |
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| EP1347313A4 (en) * | 2000-12-27 | 2004-04-14 | Dainippon Printing Co Ltd | Liquid crystal transfer body and method of transferring the liquid crystal transfer body |
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| GB2428860A (en) * | 2004-01-28 | 2007-02-07 | Kent Displays Inc | Drapable liquid crystal transfer display films |
| GB2426371B (en) * | 2004-01-28 | 2007-08-08 | Kent Displays Inc | Drapable Liquid Crystal Transfer Display Films |
| GB2428860B (en) * | 2004-01-28 | 2007-08-01 | Kent Displays Inc | Drapable liquid crystal transfer display films |
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| WO2019031138A1 (en) * | 2017-08-09 | 2019-02-14 | 日東電工株式会社 | Electroconductive film for transfer |
| JP2019031040A (en) * | 2017-08-09 | 2019-02-28 | 日東電工株式会社 | Conductive film for thermal transfer |
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| JP2807510B2 (en) | 1998-10-08 |
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