JPH06337647A - Electric field light emitting lamp display plate and its production - Google Patents
Electric field light emitting lamp display plate and its productionInfo
- Publication number
- JPH06337647A JPH06337647A JP5126843A JP12684393A JPH06337647A JP H06337647 A JPH06337647 A JP H06337647A JP 5126843 A JP5126843 A JP 5126843A JP 12684393 A JP12684393 A JP 12684393A JP H06337647 A JPH06337647 A JP H06337647A
- Authority
- JP
- Japan
- Prior art keywords
- color conversion
- conversion layer
- film
- layer
- light emitting
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000005684 electric field Effects 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 claims abstract description 75
- 239000003086 colorant Substances 0.000 claims abstract description 8
- 238000007639 printing Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000010408 film Substances 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 11
- 239000010409 thin film Substances 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 239000000049 pigment Substances 0.000 abstract description 14
- 229920005992 thermoplastic resin Polymers 0.000 abstract description 7
- 238000007650 screen-printing Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000000059 patterning Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 82
- 238000010521 absorption reaction Methods 0.000 description 9
- 239000003973 paint Substances 0.000 description 6
- 239000004952 Polyamide Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 239000012790 adhesive layer Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000013039 cover film Substances 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 238000005562 fading Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は電界発光灯表示板及びそ
の製造方法に関し、特に部分多色発光表示が可能な電界
発光灯及びその製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electroluminescent display panel and a method of manufacturing the same, and more particularly to an electroluminescent lamp capable of partial multi-color light emission display and a method of manufacturing the same.
【０００２】[0002]
【従来の技術】従来の電界発光灯４０は、図５に要部拡
大断面図で示すように、後述の積層体からなる略矩形の
平面形状を有する電界発光素子４７をフッ素系樹脂等の
防湿性を有する外皮フィルム４８，４９により密閉封止
した構造を有する。2. Description of the Related Art In a conventional electroluminescent lamp 40, as shown in an enlarged sectional view of an essential part of FIG. It has a structure in which it is hermetically sealed by outer skin films 48 and 49 having properties.
【０００３】上記電界発光素子４７は、下層から順に、
背面電極４１、反射絶縁層４２、発光層４３、透明電極
４４を積層・形成したものである。尚、図中４５，４６
は上記電界発光素子４７の上下に配置されたポリアミド
等の吸湿フィルムからなる吸湿層である。ここで、電界
発光灯の発光色を部分的に変更する場合は、特開昭６０
−８４５８０号公報、実開昭６２−８３７９６号公報、
実開昭６３−１２１３９６号公報に開示されているよう
に蛍光顔料を含むカラーフィルタを発光層の前方に配設
する方法や実開平２−４９０９６号公報に開示されてい
るように発光層を分割して設ける方法、実開平３−５２
９９７号公報に開示されているように発光層を部分的に
紫外線で退色させる方法等がある。また、文字や図形を
表示する場合は実開昭６３−１７０９８号公報に開示さ
れているように背面電極上に絶縁物質からなる表示パタ
ーンを形成する方法や実開昭６３−１０１４９８号公
報、実開昭６３−１７１９９５号公報、実開平３−６９
８９４号公報に開示されているように発光層の前面に表
示パターンを配設する方法、実開平３−１０４９８号公
報に開示されているように発光層に開口部を設ける方法
等がある。The electroluminescent device 47 is arranged in order from the lower layer.
The back electrode 41, the reflective insulating layer 42, the light emitting layer 43, and the transparent electrode 44 are laminated and formed. In the figure, 45,46
Is a hygroscopic layer made of a hygroscopic film such as polyamide disposed above and below the electroluminescent element 47. Here, in the case of partially changing the emission color of the electroluminescent lamp, Japanese Patent Application Laid-Open No. Sho 60-1985
No. 84580, No. 62-83796,
As disclosed in Japanese Utility Model Application Laid-Open No. 63-121396, a method of arranging a color filter containing a fluorescent pigment in front of the light emitting layer and as disclosed in Japanese Utility Model Application Laid-Open No. 2-49096, the light emitting layer is divided. Method to install, actual Kaihei 3-52
As disclosed in Japanese Patent Publication No. 997, there is a method of partially fading the light emitting layer with ultraviolet rays. When displaying characters or figures, a method of forming a display pattern made of an insulating material on a back electrode as disclosed in Japanese Utility Model Laid-Open No. Sho 63-17098, No. Sho 63-101498, No. KAISHO 63-171995, Japanese Utility Model Publication 3-69
There is a method of disposing a display pattern on the front surface of the light emitting layer as disclosed in Japanese Patent No. 894, and a method of providing an opening portion in the light emitting layer as disclosed in Japanese Utility Model Laid-Open No. 3-10498.
【０００４】[0004]
【発明が解決しようとする課題】ところで上記の構造の
電界発光灯において、フィルタや表示パターンを発光層
前方に配設する場合、電界発光灯の膜厚が厚くなる、フ
ィルタや表示パターンの形成や配設のための多大な工数
がかかるという問題があった。また、発光層を分割して
設ける方法、発光層を部分的に紫外線で退色させる方
法、背面電極上に絶縁物質からなる表示パターンを形成
する方法、発光層に開口部を設ける方法等いずれも多大
な工数を要し、容易に製造することは困難であった。そ
こで、本発明は上記問題点を顧みて提案されたもので、
その目的は任意のパターンを任意の色で発光する安価か
つ薄型の電界発光灯表示板およびその製造方法を提供す
ることにある。By the way, in the electroluminescent lamp having the above structure, when the filter and the display pattern are arranged in front of the light emitting layer, the film thickness of the electroluminescent lamp becomes thicker, and the formation of the filter and the display pattern becomes difficult. There is a problem that a great number of man-hours are required for the arrangement. In addition, a method of dividing the light emitting layer, a method of partially fading the light emitting layer with ultraviolet rays, a method of forming a display pattern made of an insulating material on the back electrode, a method of forming an opening in the light emitting layer, and the like are all great. It takes a lot of man-hours and is difficult to manufacture easily. Therefore, the present invention was proposed in consideration of the above problems,
An object of the present invention is to provide an inexpensive and thin electroluminescent display panel that emits an arbitrary pattern in an arbitrary color, and a manufacturing method thereof.
【０００５】[0005]
【課題を解決するための手段】本発明の電界発光灯表示
板では、背面電極、反射絶縁層、発光層及び透明電極を
有する電界発光灯の発光層の前方にフィルム上に形成し
た色変換層を配設した電界発光灯において、前記フィル
ム上に形成した色変換層が二層以上の多層構造からな
り、厚膜で印刷された第一色変換層の上に薄膜選択印刷
で一層以上の第二色変換層を形成することにより膜厚が
部分的に異なるようにしたことを特徴とする。また、積
層した各色変換層が異なる発光色の蛍光材料で形成され
たことを特徴とする。In the electroluminescent lamp display plate of the present invention, a color conversion layer formed on a film in front of the luminescent layer of the electroluminescent lamp having a back electrode, a reflective insulating layer, a luminescent layer and a transparent electrode. The color conversion layer formed on the film has a multilayer structure of two or more layers, and the first color conversion layer printed with a thick film has one or more layers selected by thin film selective printing. It is characterized in that the film thickness is made partially different by forming the two-color conversion layer. Further, each of the stacked color conversion layers is formed of fluorescent materials having different emission colors.
【０００６】[0006]
【作用】フィルム上に形成した色変換層の膜厚が部分的
に異なるため、容易にハーフトーンの発光を実現でき
る。また、積層する第一色変換層と第二色変換層に異な
る色の蛍光顔料を用いることにより、容易にかつ安価に
多色発光の電界発光灯表示板を実現できる。Since the film thickness of the color conversion layer formed on the film is partially different, halftone light emission can be easily realized. Further, by using fluorescent pigments of different colors for the first color conversion layer and the second color conversion layer to be laminated, it is possible to easily and inexpensively realize a multicolor emission electroluminescent lamp display plate.
【０００７】[0007]
【実施例】本発明の第一実施例の電界発光灯表示板およ
びその製造方法について、図１〜２を参照しながら説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An electroluminescent display panel and a method of manufacturing the same according to a first embodiment of the present invention will be described with reference to FIGS.
【０００８】本発明の電界発光灯１３は図１の要部拡大
断面図に示すように、下層から順に、アルミ箔からなる
背面電極１、有機バインダ中にチタン酸バリウム等の絶
縁物を分散した反射絶縁層２、有機バインダ中に硫化亜
鉛を銅で付活した蛍光体を分散した発光層３、透明電極
４を形成した電界発光素子１２の表面側にポリアミド等
の吸湿フィルム５に色変換層６を形成したフィルム７を
貼りつけ、裏面側にポリアミド等の吸湿フィルム５に接
着層８を形成したフィルム９を貼りつけ、フッ素系樹脂
等からなる外皮フィルム１０，１１で封止した構造をし
ている。ここで、図２（ａ）のように表面側吸湿フィル
ム５の上に、蛍光顔料（例えば、シンロイヒ（株）製Ｆ
Ａ００１）を熱可塑性樹脂（例えばポリウレタン系樹脂
等）に混合した塗料を、グラビアコータやコンマコータ
等により２０〜３０μｍの厚みで連続印刷し、長尺の吸
湿フィルム５の上に第一色変換層６ａを形成する。次
に、該第一色変換層６ａ上に同色の塗料を任意の形状を
パターニングしたスクリーン印刷で約５μｍの厚みの第
二色変換層６ｂを形成する。この時、色変換層６の断面
は図２（ａ）に示すようになり、同色の色変換層が膜厚
差を有して形成されていることになる。その後、前記吸
湿フィルム５を任意の形状に切断後、色変換層６側をラ
ミネートロールや熱プレス等により透明電極４上に熱圧
着し密着させる。In the electroluminescent lamp 13 of the present invention, as shown in the enlarged cross-sectional view of the main part of FIG. 1, an insulating material such as barium titanate is dispersed in a back electrode 1 made of aluminum foil and an organic binder in order from the lower layer. A reflective insulating layer 2, a light emitting layer 3 in which a phosphor in which zinc sulfide is activated by copper is dispersed in an organic binder is dispersed, and a hygroscopic film 5 made of polyamide or the like on the surface side of an electroluminescent element 12 on which a transparent electrode 4 is formed and a color conversion layer. A film 7 having 6 formed thereon is attached, a film 9 having an adhesive layer 8 formed on a moisture absorption film 5 made of polyamide or the like is attached on the back side, and the outer films 10 and 11 made of a fluororesin or the like are sealed to form a structure. ing. Here, as shown in FIG. 2A, a fluorescent pigment (for example, F manufactured by Shin Loihi Co., Ltd.
A001) is mixed with a thermoplastic resin (for example, a polyurethane-based resin), and a paint is continuously printed with a thickness of 20 to 30 μm by a gravure coater, a comma coater, or the like, and the first color conversion layer 6a is formed on the long moisture-absorbing film 5. To form. Next, the second color conversion layer 6b having a thickness of about 5 μm is formed on the first color conversion layer 6a by screen printing in which the same color paint is patterned in an arbitrary shape. At this time, the cross section of the color conversion layer 6 is as shown in FIG. 2A, and the color conversion layers of the same color are formed with a difference in film thickness. After that, the moisture absorption film 5 is cut into an arbitrary shape, and the color conversion layer 6 side is thermocompression-bonded to the transparent electrode 4 by a lamination roll, a heat press, or the like to be in close contact.
【０００９】本発明によれば、表面側吸湿フィルム５に
形成した色変換層に任意の形状で膜厚差を設けることに
より、発光時に第一色変換層のみの部分は色度がｘ＝．
３３０，ｙ＝．４１５、第一・第二色変換層が積層され
ている部分の色度はｘ＝．３６０，ｙ＝．４０５となっ
て色の濃さが異なることになり、容易にハーフトーン発
光を実現することができる。また、第二色変換層の蛍光
顔料濃度を低くすることにより、非点灯時にはコントラ
ストが低くなり所定の形状が目立たず、点灯時は所定の
形状が浮き出るように見える電界発光灯表示板を実現す
ることもできる。また、本実施例では色変換層が二層の
例を紹介したが、三層以上形成することにより、より複
雑なパターンの多色発光と多階調のハーフトーン発光を
表示することができる。また、色変換層を形成するフィ
ルムは吸湿フィルムに限定される必要はない。According to the present invention, the color conversion layer formed on the front-side moisture absorption film 5 is provided with a film thickness difference in an arbitrary shape, so that at the time of light emission, only the first color conversion layer has a chromaticity of x =.
330, y =. 415, the chromaticity of the portion where the first and second color conversion layers are laminated is x =. 360, y =. Since the color density is changed to 405, halftone light emission can be easily realized. Further, by reducing the concentration of the fluorescent pigment in the second color conversion layer, the contrast becomes low when the lamp is not lit, and the predetermined shape is inconspicuous. When the lamp is lit, the predetermined shape appears to be embossed. You can also In addition, although an example in which the number of color conversion layers is two has been introduced in the present embodiment, by forming three or more layers, it is possible to display multicolor emission of a more complicated pattern and halftone emission of multiple gradations. Further, the film forming the color conversion layer need not be limited to the moisture absorption film.
【００１０】次に、本発明に係わる第二実施例について
説明する。第一実施例では第一・第二色変換層に同色の
蛍光顔料を用い、その膜厚差により色変換層の濃さを変
更しハーフトーン発光を実現した例を挙げたが、第一・
第二色変換層に複数の異なる蛍光顔料を用いることによ
り、容易に部分多色化を実現することができる。例え
ば、図３（ａ）（ｂ）に示すように表面側吸湿フィルム
２０の上に、Ｐｉｎｋ色の蛍光顔料（例えば、シンロイ
ヒ（株）製ＦＡ００１）を熱可塑性樹脂に混合した塗料
を、グラビアコータやコンマヒータ等により連続印刷
し、長尺の吸湿フィルム２０の上に第一色変換層２１ａ
を形成する。次に、該第一色変換層２１ａ上にＧｒｅｅ
ｎ色の蛍光顔料（例えば、シンロイヒ（株）製ＦＡ００
５）を熱可塑性樹脂に混合した塗料を、任意の形状にパ
ターニングしたスクリーン印刷で第二色変換層２１ｂを
形成する。その後、前記吸湿フィルム２０を任意の形状
に切断後、色変換層２１側をラミネートロールや熱プレ
ス等により透明電極上に熱圧着し密着させる。Next, a second embodiment according to the present invention will be described. In the first embodiment, an example in which fluorescent pigments of the same color are used for the first and second color conversion layers and the thickness of the color conversion layer is changed by the difference in film thickness to realize halftone light emission,
By using a plurality of different fluorescent pigments in the second color conversion layer, it is possible to easily realize partial multicolor. For example, as shown in FIGS. 3 (a) and 3 (b), a paint obtained by mixing a pink color fluorescent pigment (for example, FA001 manufactured by Shin Roihi Co., Ltd.) with a thermoplastic resin is coated on the surface-side moisture absorption film 20 with a gravure coater. Or continuous printing with a comma heater or the like, and the first color conversion layer 21a on the long moisture-absorbing film 20.
To form. Next, the green is formed on the first color conversion layer 21a.
n-color fluorescent pigment (for example, FA00 manufactured by Shin Loihi Co., Ltd.)
The second color conversion layer 21b is formed by screen printing in which a paint obtained by mixing 5) with a thermoplastic resin is patterned into an arbitrary shape. After that, the moisture absorbing film 20 is cut into an arbitrary shape, and then the color conversion layer 21 side is thermocompression-bonded to the transparent electrode by a lamination roll, a heat press, or the like to be in close contact.
【００１１】本発明によれば、表面側吸湿フィルム２０
に形成した色変換層２１を部分的に異なる蛍光顔料で二
層構造にすることにより、発光時第一色変換層のみの部
分は１００Ｖ−４００Ｈｚ印加時の色度がｘ＝．３３
０，ｙ＝．４１５、第一・第二色変換層が積層されてい
る部分の色度はｘ＝．４７０，ｙ＝．４８０となり、白
色と黄色の二色部分発光を容易に実現することができ
る。また、第二色変換層２１ｂの膜厚を変えることによ
り多階調のハーフトーン発光を実現できる。According to the present invention, the front moisture absorption film 20
By making the color conversion layer 21 formed in the above-mentioned two-layer structure with partially different fluorescent pigments, the chromaticity at the time of application of 100 V-400 Hz is x =. 33
0, y =. 415, the chromaticity of the portion where the first and second color conversion layers are laminated is x =. 470, y =. 480, which makes it possible to easily realize two-color partial light emission of white and yellow. In addition, multi-tone halftone light emission can be realized by changing the film thickness of the second color conversion layer 21b.
【００１２】また、上記実施例では二層二色の色変換層
を設ける場合について説明したが、三層以上形成するこ
とにより、より複雑な多色化を表示することができる。Further, in the above embodiment, the case where the color conversion layers of two layers and two colors are provided has been described. However, by forming three or more layers, it is possible to display more complicated multicolor.
【００１３】さらに、第三実施例として二層多色の色変
換層を設けた例について説明する。例えば、図４（ａ）
の断面図、図４（ｂ）の平面図に示すように表面側吸湿
フィルム３０の上に、Ｐｉｎｋ色の蛍光顔料（例えば、
シンロイヒ（株）製ＦＡ００１）を熱可塑性樹脂に混合
した塗料を、グラビアコータやコンマコータ等により厚
膜連続印刷し、長尺の吸湿フィルム３０の上に第一色変
換層３１ａを形成する。次に、該第一色変換層３１ａ上
にＧｒｅｅｎ色の蛍光顔料（例えば、シンロイヒ（株）
ＦＡ００５）を熱可塑性樹脂に混合した塗料を、任意の
形状にパターニングしたスクリーン印刷で第二色変換層
３１ｂを形成する。次に、第一色変換層３１ａの上に第
二色変換層３１ｂの形成されていない部分にＲｅｄ色の
蛍光顔料（例えば、シンロイヒ（株）ＦＡ００７）を熱
可塑性樹脂に混合した塗料を、任意の形状でパターニン
グしたスクリーン印刷で第二色変換層３１ｃを形成す
る。その後、前記吸湿フィルム３０を任意の形状に切断
後、色変換層３１側をラミネートロールや熱プレス等に
より透明電極上に熱圧着し密着させる。Furthermore, an example in which a two-layer multicolor color conversion layer is provided will be described as a third embodiment. For example, in FIG.
As shown in the cross-sectional view of FIG. 4B and the plan view of FIG. 4B, a pink color fluorescent pigment (for example,
A paint obtained by mixing Shin-Reihi Co., Ltd. FA001) with a thermoplastic resin is subjected to thick film continuous printing by a gravure coater, a comma coater or the like to form the first color conversion layer 31a on the long moisture-absorbing film 30. Next, on the first color conversion layer 31a, a green color fluorescent pigment (for example, Shin-Leuhi Co., Ltd.) is used.
The second color conversion layer 31b is formed by screen-printing a paint in which FA005) is mixed with a thermoplastic resin and patterned into an arbitrary shape. Next, a coating material obtained by mixing a red color fluorescent pigment (for example, FA007 of Shin Loihi Co., Ltd.) with a thermoplastic resin is applied to a portion where the second color conversion layer 31b is not formed on the first color conversion layer 31a. The second color conversion layer 31c is formed by screen printing patterned in the shape of. After that, the moisture absorbing film 30 is cut into an arbitrary shape, and the color conversion layer 31 side is thermocompression-bonded to the transparent electrode by a lamination roll, a heat press, or the like to be in close contact.
【００１４】第三実施例によれば、発光時に第一色変換
層３１ａのみの部分は１００Ｖ−４００Ｈｚ印加時の色
度がｘ＝．３３０，ｙ＝．４１５、第一・第二色変換層
３１ａ，３１ｂが積層されている部分の色度は、ｘ＝．
４７０，ｙ＝．４８０、第一・第二色変換層３１ａ，３
１ｃが積層されている部分の色度はｘ＝．３８０，ｙ
＝．３３０となり、青白色、黄色、赤白色の三色部分発
光を任意の形状で容易に実現することができる。この場
合も、表面側吸湿フィルム３０に形成した色変換層に任
意の形状で膜厚差を設けることにより、さらに多階調ハ
ーフトーン発光も実現できる。According to the third embodiment, the chromaticity at the time of application of 100 V-400 Hz is x =. 330, y =. 415, the chromaticity of the portion where the first and second color conversion layers 31a and 31b are laminated is x =.
470, y =. 480, first / second color conversion layers 31a, 3
1c has a chromaticity of x =. 380, y
=. Thus, the three-color partial light emission of blue-white, yellow, and red-white can be easily realized in any shape. In this case, too, multi-tone halftone light emission can be realized by providing a film thickness difference in an arbitrary shape in the color conversion layer formed on the front-side moisture absorption film 30.
【００１５】なお、前記各実施例では外皮フィルムで封
止した電界発光灯表示板を説明したが、耐湿性を改善し
た電界発光素子を使用して外皮フィルムを使用しないよ
うにしてもよい。In each of the above-mentioned embodiments, the electroluminescent lamp display plate sealed with the outer cover film has been described, but it is also possible to use an electroluminescent element having improved moisture resistance and not use the outer cover film.
【００１６】また、図４の第三実施例は色の異なる第二
変換層３１ｂ，３１ｃを離隔して選択印刷したもので、
下地の第一変換層３１ａが露出している部分があるが、
露出しないように第二色変換層３１ｂ，３１ｃの境界を
接して印刷してもよい。In the third embodiment of FIG. 4, the second conversion layers 31b and 31c of different colors are separately printed,
There is a portion where the underlying first conversion layer 31a is exposed,
You may print by contacting the boundary of 2nd color conversion layers 31b and 31c so that it may not expose.
【００１７】[0017]
【発明の効果】本発明によれば、第一色変換層の上に少
なくとも一層以上の色変換層を任意の形状・膜厚で選択
印刷することにより、任意の形状で部分多色発光、多階
調発光が可能な電界発光灯表示板を安価かつ容易に実現
することができ、様々な用途に対応できる。According to the present invention, by selectively printing at least one color conversion layer on the first color conversion layer in an arbitrary shape and film thickness, it is possible to achieve partial multicolor emission, multicolor emission in an arbitrary shape. It is possible to easily and inexpensively realize an electroluminescence display panel capable of gradation light emission, and it is possible to cope with various uses.
【図１】 本発明の第一実施例を示す電界発光灯表示板
の要部拡大断面図。FIG. 1 is an enlarged sectional view of an essential part of an electroluminescence lamp display plate showing a first embodiment of the present invention.
【図２】 本発明の第一実施例における色変換層を形成
したフィルムの断面図（ａ）と平面図（ｂ）。FIG. 2 is a sectional view (a) and a plan view (b) of a film having a color conversion layer according to the first embodiment of the present invention.
【図３】 本発明の第二実施例における色変換層を形成
したフィルムの断面図（ａ）と平面図（ｂ）。FIG. 3 is a sectional view (a) and a plan view (b) of a film having a color conversion layer according to the second embodiment of the present invention.
【図４】 本発明の第三実施例における色変換層を形成
したフィルムの断面図（ａ）と平面図（ｂ）。FIG. 4 is a sectional view (a) and a plan view (b) of a film having a color conversion layer according to a third embodiment of the present invention.
【図５】 従来の電界発光灯を示す要部拡大断面図。FIG. 5 is an enlarged sectional view of a main part of a conventional electroluminescent lamp.
１ 背面電極 ２ 絶縁層 ３ 発光層 ４ 透明電極 ５，２０，３０ 吸湿フィルム ６ 色変換層 ６ａ，２１ａ，３１ａ 第一色変換層 ６ｂ，２１ｂ，３１ｂ 第二色変換層 ７，２１，３１ 色変換層を形成したフィルム ８ 接着層 ９ 裏面側吸湿フィルム １０ 表面側外皮フィルム １１ 裏面側外皮フィルム １２ 電界発光素子 １３ 電界発光灯表示板 1 Back Electrode 2 Insulating Layer 3 Light Emitting Layer 4 Transparent Electrode 5,20,30 Moisture Absorption Film 6 Color Conversion Layers 6a, 21a, 31a First Color Conversion Layer 6b, 21b, 31b Second Color Conversion Layer 7, 21, 31 Color Conversion Layer-formed film 8 Adhesive layer 9 Back side moisture absorption film 10 Front side skin film 11 Back side skin film 12 Electroluminescent element 13 Electroluminescent lamp display plate
Claims (4)
極を有する電界発光灯の発光層の前方にフィルム上に形
成した色変換層を配設した電界発光灯において、前記フ
ィルム上に形成した色変換層が部分的に膜厚が異なるこ
とを特徴とする電界発光灯表示板。1. An electroluminescent lamp having a color conversion layer formed on a film in front of a light emitting layer of an electroluminescent lamp having a back electrode, a reflective insulating layer, a light emitting layer and a transparent electrode. The electroluminescent lamp display plate is characterized in that the color conversion layer has a partially different film thickness.
極を有する電界発光灯の発光層の前方にフィルム上に形
成した色変換層を配設した電界発光灯において、前記色
変換層が二層以上の積層された色変換層からなり、かつ
少なくとも一層の色変換層が所定の形状に選択印刷され
たことを特徴とする電界発光灯表示板。2. An electroluminescent lamp having a color conversion layer formed on a film in front of a light emitting layer of an electroluminescent lamp having a back electrode, a reflective insulating layer, a light emitting layer and a transparent electrode, wherein the color conversion layer is An electroluminescent display panel comprising two or more stacked color conversion layers, wherein at least one color conversion layer is selectively printed in a predetermined shape.
形成されたことを特徴とする請求項２記載の電界発光灯
表示板。3. The electroluminescent display panel according to claim 2, wherein the color conversion layer is formed of fluorescent materials having different emission colors.
示板を製造する方法において、長尺の前記フィルム上に
第一色変換層を厚膜で連続印刷する工程と、該第一色変
換層の上に第二色変換層を薄膜選択印刷で一層以上積層
する工程とを含むことを特徴とする電界発光灯表示板の
製造方法。4. The method for manufacturing an electroluminescent display panel according to claim 1, wherein the first color conversion layer is continuously printed as a thick film on the long film, and And a step of laminating one or more second color conversion layers on the color conversion layer by thin film selective printing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5126843A JPH06337647A (en) | 1993-05-28 | 1993-05-28 | Electric field light emitting lamp display plate and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5126843A JPH06337647A (en) | 1993-05-28 | 1993-05-28 | Electric field light emitting lamp display plate and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06337647A true JPH06337647A (en) | 1994-12-06 |
Family
ID=14945252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5126843A Pending JPH06337647A (en) | 1993-05-28 | 1993-05-28 | Electric field light emitting lamp display plate and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06337647A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2294589A (en) * | 1994-10-27 | 1996-05-01 | Seikosha Kk | Electro-luminescent display |
| WO1998044475A1 (en) * | 1997-03-31 | 1998-10-08 | Idec Izumi Corporation | Display and lighting device |
| JP2001297879A (en) * | 1999-12-22 | 2001-10-26 | General Electric Co <Ge> | Light emission display and its manufacturing method |
| WO2006025403A1 (en) * | 2004-08-31 | 2006-03-09 | Fujifilm Corporation | Dispersion type electroluminescence element |
| JP2008027864A (en) * | 2006-07-25 | 2008-02-07 | Matsushita Electric Works Ltd | Organic el element and wavelength conversion unit for organic el element |
-
1993
- 1993-05-28 JP JP5126843A patent/JPH06337647A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2294589A (en) * | 1994-10-27 | 1996-05-01 | Seikosha Kk | Electro-luminescent display |
| GB2294589B (en) * | 1994-10-27 | 1998-11-04 | Seikosha Kk | Electro-luminescent display |
| US5838644A (en) * | 1994-10-27 | 1998-11-17 | Seiko Precision Inc. | Electroluminescent display and luminous timepiece dial |
| WO1998044475A1 (en) * | 1997-03-31 | 1998-10-08 | Idec Izumi Corporation | Display and lighting device |
| US6517213B1 (en) | 1997-03-31 | 2003-02-11 | Idec Izumi Corporation | Indicator device and illumination device |
| JP2001297879A (en) * | 1999-12-22 | 2001-10-26 | General Electric Co <Ge> | Light emission display and its manufacturing method |
| WO2006025403A1 (en) * | 2004-08-31 | 2006-03-09 | Fujifilm Corporation | Dispersion type electroluminescence element |
| JP2008027864A (en) * | 2006-07-25 | 2008-02-07 | Matsushita Electric Works Ltd | Organic el element and wavelength conversion unit for organic el element |
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