JP2000030859A - Light emitting display panel and manufacturing method thereof - Google Patents
Light emitting display panel and manufacturing method thereofInfo
- Publication number
- JP2000030859A JP2000030859A JP10192587A JP19258798A JP2000030859A JP 2000030859 A JP2000030859 A JP 2000030859A JP 10192587 A JP10192587 A JP 10192587A JP 19258798 A JP19258798 A JP 19258798A JP 2000030859 A JP2000030859 A JP 2000030859A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- electrode layer
- light emitting
- transparent
- light
- 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.)
- Withdrawn
Links
Landscapes
- Electroluminescent Light Sources (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、薄型化に適する発
光表示パネルとその製造方法に関する。より具体的に
は、視認性に優れ複数のパターンを任意に切り替えて表
示できる発光パネルとその製造方法に関する。本発明の
発光表示パネルは、例えば、図形、数字、標識等のパタ
ーンを強調表示または切替表示するための発光表示体と
して好適である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting display panel suitable for thinning and a method for manufacturing the same. More specifically, the present invention relates to a light-emitting panel having excellent visibility and capable of arbitrarily switching and displaying a plurality of patterns and a method of manufacturing the same. The light-emitting display panel of the present invention is suitable as, for example, a light-emitting display for highlighting or switching and displaying patterns such as figures, numbers, and signs.
【０００２】[0002]
【従来技術】エレクトロミネセンス(ＥＬ)発光パネル
は、背面電極層と表面電極層との間に絶縁体層と発光層
を積層してなる薄型発光素子である。背面電極層と表面
電極層との間に高周波電圧を印加することにより発光層
を励起して発光させる。このＥＬ発光パネルは軽量化が
容易であり、消費電力が低く、均一な面発光が可能であ
ることから液晶ディスプレイのバックライト等に利用さ
れているが、最近では、視野角依存性が少なく安定性に
優れる点に着目してパターン表示機能を付与し、交通標
識等のサインボード等に利用する試みもなされている。2. Description of the Related Art An electroluminescent (EL) light-emitting panel is a thin light-emitting element in which an insulator layer and a light-emitting layer are laminated between a back electrode layer and a surface electrode layer. By applying a high-frequency voltage between the back electrode layer and the front electrode layer, the light emitting layer is excited to emit light. This EL light-emitting panel is used for a backlight of a liquid crystal display or the like because it can be easily reduced in weight, consumes low power, and can emit uniform surface light. Attempts have been made to provide a pattern display function by paying attention to its superiority and to use it for a sign board such as a traffic sign.
【０００３】例えば、特開平07-152334号公報には、パ
ネルの前面にマスク(遮光シート)を設け、これによって
所定のパターンを表示する装置が記載されている。しか
し、この装置は製作は容易であるが、遮光マスクで覆わ
れた部分も無駄に発光するため表示面積に対して数倍も
の消費電力を要するという問題がある。また、特開平06
-202567号公報、特開平06-231885号公報には、発光面を
所定のパターンに形成したＥＬ発光表示素子が記載され
ている。しかし、この装置はパターン全体が均一に明る
く表示されるためにコントラストが弱く、視認性が必ず
しも強くない。また、従来の表示装置は複数の異なるパ
ターンを切り替えて表示することができない。さらに、
特開平06-13180号には、電極の引き出し部分に代えてス
ルーホールを設けた例が示されているが、構造が複雑に
なり製造コストが嵩む。[0003] For example, Japanese Patent Application Laid-Open No. 07-152334 describes an apparatus in which a mask (light shielding sheet) is provided on the front surface of a panel and a predetermined pattern is displayed by using the mask. However, although this device is easy to manufacture, there is a problem in that the portion covered with the light-shielding mask emits useless light, so that the power consumption is several times as large as the display area. Also, Japanese Unexamined Patent Publication
JP-202567 and JP-A-06-231885 describe an EL light-emitting display element having a light-emitting surface formed in a predetermined pattern. However, in this device, since the entire pattern is uniformly and brightly displayed, the contrast is weak, and the visibility is not always strong. Further, the conventional display device cannot switch and display a plurality of different patterns. further,
Japanese Patent Application Laid-Open No. 06-13180 discloses an example in which a through-hole is provided in place of a lead-out portion of an electrode, but the structure becomes complicated and the manufacturing cost increases.
【０００４】[0004]
【発明の解決課題】本発明は、従来の発光表示装置の上
記問題を解決したものであり、構造が簡単で製造が容易
であり、かつ視認性が高く、複数のパターンを切り替え
表示することが可能な発光表示パネルを提供することを
目的とする。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the conventional light-emitting display device, and has a simple structure, is easy to manufacture, has high visibility, and can switch and display a plurality of patterns. It is an object of the present invention to provide a light-emitting display panel that can be used.
【０００５】[0005]
【課題を解決する手段】すなわち、本発明は、（１）背
面電極層と透明な表面電極層との間に絶縁層と発光層お
よび透明な中間電極層を積層してなる発光表示パネルで
あって、中間電極層が発光層に接触すると共に表面電極
層には透明樹脂層を介して絶縁されており、この中間電
極層の切欠部分を通じて表面電極層が発光層に接触して
おり、これらの電極と発光層との接触部分が印可電圧を
受けて発光することを特徴とする発光表示パネルに関す
る。That is, the present invention provides (1) a light emitting display panel comprising an insulating layer, a light emitting layer, and a transparent intermediate electrode layer laminated between a back electrode layer and a transparent surface electrode layer. The intermediate electrode layer is in contact with the light emitting layer and the surface electrode layer is insulated through the transparent resin layer. The surface electrode layer is in contact with the light emitting layer through a cutout portion of the intermediate electrode layer. The present invention relates to a light-emitting display panel characterized in that a contact portion between an electrode and a light-emitting layer receives an applied voltage and emits light.
【０００６】本発明の発光表示パネルは、（２）透明導
電層を担持した透明絶縁フィルムの積層体によって複数
の中間電極層が形成されており、発光層側(下側)の中間
電極層の切欠部分を通じて上側の中間電極層が発光層に
接触しており、これら複数の接触部分が選択的に印可電
圧を受けて発光する上記(1)に記載の発光表示パネル、
および（３）表面電極層および中間電極と接触する発光
層の各接触部分が互いに異なった色調に発光する上記
(1)または(2)に記載の発光表示パネルを含む。In the light emitting display panel of the present invention, (2) a plurality of intermediate electrode layers are formed by a laminate of a transparent insulating film carrying a transparent conductive layer, and the intermediate electrode layer on the light emitting layer side (lower side) is formed. The light emitting display panel according to (1), wherein the upper intermediate electrode layer is in contact with the light emitting layer through the cutout portion, and the plurality of contact portions selectively receive an applied voltage and emit light.
And (3) each of the contact portions of the light emitting layer in contact with the surface electrode layer and the intermediate electrode emits light of a different color from each other.
The light-emitting display panel according to (1) or (2) is included.
【０００７】また、本発明は、（４）背面電極層となる
導電層を有する絶縁基板に、発光材料の薄膜を有する絶
縁フィルムを重ね、更にこの上に中間電極層となる透明
導電層を有する透明絶縁フィルム、表面電極層となる透
明導電層を有する他の透明絶縁フィルムを順に積層して
上記(1)または(2)の発光表示パネルを製造する方法、
（５）絶縁基板、背面電極層となる導電層を有する絶縁
フィルム、発光材料からなる薄膜フィルム、中間電極層
となる透明導電層を有する透明絶縁フィルム、表面電極
層となる透明導電層を有する他の透明絶縁フィルムを順
に積層して上記(1)または(2)の発光表示パネルを製造す
る方法に関する。Further, according to the present invention, (4) an insulating film having a thin film of a luminescent material is laminated on an insulating substrate having a conductive layer serving as a back electrode layer, and further a transparent conductive layer serving as an intermediate electrode layer is provided thereon. Transparent insulating film, the above (1) or another method of manufacturing a light emitting display panel of (2) by laminating another transparent insulating film having a transparent conductive layer to be a surface electrode layer,
(5) An insulating substrate, an insulating film having a conductive layer serving as a back electrode layer, a thin film made of a light emitting material, a transparent insulating film having a transparent conductive layer serving as an intermediate electrode layer, and a transparent insulating layer serving as a surface electrode layer. The present invention relates to a method for producing the light emitting display panel according to the above (1) or (2) by laminating the transparent insulating films in order.
【０００８】[0008]
【発明の実施態様】以下、本発明の発光表示パネルをお
よびその製造方法を図面に示す構成例を参照して具体的
に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a light emitting display panel according to the present invention and a method for manufacturing the same will be described in detail with reference to structural examples shown in the drawings.
【０００９】(Ｉ)発光表示パネル 本発明の発光表示パネルは、背面電極層と透明な表面電
極層との間に絶縁層と発光層および透明な中間電極層を
積層してなる発光表示パネルであって、中間電極層が発
光層に接触すると共に表面電極層には透明樹脂層を介し
て絶縁されており、この中間電極層の切欠部分を通じて
表面電極層が発光層に接触しており、これらの電極と発
光層との接触部分が印可電圧を受けて発光する構造を有
するものである。 (I) Light-Emitting Display Panel The light-emitting display panel of the present invention is a light-emitting display panel comprising an insulating layer, a light-emitting layer, and a transparent intermediate electrode layer laminated between a back electrode layer and a transparent surface electrode layer. The intermediate electrode layer is in contact with the light emitting layer and the surface electrode layer is insulated via the transparent resin layer, and the surface electrode layer is in contact with the light emitting layer through a cutout portion of the intermediate electrode layer. The contact portion between the electrode and the light emitting layer has a structure that emits light upon receiving an applied voltage.
【００１０】図１に本発明の発光表示パネルの構成例を
模式的に示す。図示するように、発光表示パネルは背面
電極層１１と透明な表面電極層１５との間に絶縁層１２
と発光層１３および中間電極層１４が順に積層された構
造を有している。このように本発明の発光表示パネル
は、背面電極層１１に対して透明な表面電極層１５と中
間電極層１４とが設けられている。以下、背面電極層側
を下側、表面電極層側を上側として説明する。FIG. 1 schematically shows a configuration example of a light emitting display panel of the present invention. As shown, the light emitting display panel has an insulating layer 12 between a back electrode layer 11 and a transparent surface electrode layer 15.
And a light emitting layer 13 and an intermediate electrode layer 14 are sequentially laminated. As described above, in the light emitting display panel of the present invention, the surface electrode layer 15 and the intermediate electrode layer 14 which are transparent with respect to the back electrode layer 11 are provided. Hereinafter, the back electrode layer side will be described as the lower side, and the surface electrode layer side will be described as the upper side.
【００１１】背面電極層１１とその上側の発光層１３の
間には絶縁層１２が介在し、一方、中間電極層１４は下
側の発光層１３に接触して積層されている。さらに、中
間電極層１４は透明な絶縁層１６によって表面電極層１
５から絶縁されている。この中間電極層１４には所定の
表示パターンに対応した切欠部分１７が設けられてお
り、この切欠部分１７を通じて上側の表面電極層１５が
切欠部分１７の形状に従って発光層１３に接触してい
る。切欠部分１７より外側は、表面電極層１５の下側に
中間電極層１４が介在するので表面電極層１５は発光層
１３から絶縁されている。なお、このような積層構造
は、例えば、透明な導電膜や発光材料の薄膜を担持した
樹脂フィルムを積層することによって形成することがで
きる。An insulating layer 12 is interposed between the back electrode layer 11 and the light emitting layer 13 on the upper side, while the intermediate electrode layer 14 is stacked in contact with the lower light emitting layer 13. Further, the intermediate electrode layer 14 is formed by the transparent insulating layer 16 and the surface electrode layer 1.
5 is insulated. A cutout portion 17 corresponding to a predetermined display pattern is provided in the intermediate electrode layer 14, and the upper surface electrode layer 15 contacts the light emitting layer 13 according to the shape of the cutout portion 17 through the cutout portion 17. Outside the cutout portion 17, the intermediate electrode layer 14 is interposed below the surface electrode layer 15, so that the surface electrode layer 15 is insulated from the light emitting layer 13. Note that such a laminated structure can be formed, for example, by laminating a resin film carrying a transparent conductive film or a thin film of a light-emitting material.
【００１２】上記構成において、背面電極１１と表面電
極１５との間に電圧を印加すると、表面電極１５が接触
する切欠部分１７の形状、例えば矢印の部分が発光す
る。一方、背面電極１１と中間電極１４との間に電圧を
印加すると、中間電極１４の切欠部分１７を除いた領
域、例えば矢印の背景部分が発光層１３に接触している
ので、この背景部分が発光する。電圧の印加をこの２つ
の状態に切り替えることにより、矢印とその背景を交互
に明滅させることができる。なお、本例では、中間電極
層１４が一層のものを示したが、二層以上の中間電極層
でもよい。また、切欠部分１７の形状は任意である。In the above configuration, when a voltage is applied between the back electrode 11 and the surface electrode 15, the shape of the cutout portion 17 in contact with the surface electrode 15, for example, a portion indicated by an arrow, emits light. On the other hand, when a voltage is applied between the back electrode 11 and the intermediate electrode 14, a region excluding the cutout portion 17 of the intermediate electrode 14, for example, a background portion indicated by an arrow is in contact with the light emitting layer 13. Emits light. By switching the voltage application between these two states, the arrow and its background can be made to blink alternately. In this example, the single intermediate electrode layer 14 is shown, but two or more intermediate electrode layers may be used. Further, the shape of the cutout portion 17 is arbitrary.
【００１３】本発明の発光パネルの構成要素は通常の発
光パネルと同様の材料を用いて形成することができる。
背面電極層は典型的には金属の箔または薄板が用いられ
る。金属の例としてはアルミニウム、銅およびその合
金、ニッケル等が挙げられる。十分な導電性を有するも
のであれば他の金属でもよい。なお、表面電極層と同様
の透明導電材料を用いてもよい。発光層はＥＬ発光表示
素子に通常用いる材料であれば良く、一般には、蛍光体
に有機バインダーや必要に応じて蛍光顔料を配合したも
のである。この蛍光体粉末は母体材料に発光中心となる
付活剤や共付活剤を添加したものである。母体材料とし
てはＺｎＳ等が用いられる。付活剤、共付活剤としては
銅、塩素、ヨウ素、マンガン、アルミニウム等が例示さ
れる。また、発光層は表示パターンに従い、付活剤や共
付活剤あるいは顔料の種類を変えて異なった発光色にす
ることができる。なお、発光層の層厚は限定されない。The components of the light-emitting panel of the present invention can be formed using the same materials as those of a normal light-emitting panel.
A metal foil or a thin plate is typically used for the back electrode layer. Examples of metals include aluminum, copper and its alloys, nickel and the like. Other metals may be used as long as they have sufficient conductivity. Note that a transparent conductive material similar to the surface electrode layer may be used. The light-emitting layer may be any material that is usually used for an EL light-emitting display element. In general, the light-emitting layer is obtained by blending an organic binder or a fluorescent pigment as needed with a phosphor. This phosphor powder is obtained by adding an activator or a coactivator serving as a luminescent center to a base material. ZnS or the like is used as the base material. Examples of the activator and coactivator include copper, chlorine, iodine, manganese, and aluminum. Further, the light emitting layer can have different emission colors by changing the type of activator, coactivator or pigment according to the display pattern. Note that the thickness of the light emitting layer is not limited.
【００１４】絶縁層材料としてはチタン酸バリウム、チ
タン酸ジルコニウム、チタン酸鉛、酸化チタン等が挙げ
られる。表面電極層は透明で導電性を有するものであれ
ば良い。例えば、ＩＴＯ(Indiumu Tin Oxide)、ＩＺＯ
(Indium Zinc Oxide)、ＧａＩｎＯ3、ＳｎＯ2、Ｚｎ
Ｏ、Ｉｎ2Ｏ3等を樹脂フィルムに蒸着したもの等を用い
ることができる。なお、表面電極層や背面電極層にはＡ
ｌ箔や銅線などの電極端子を設けても良く、端子と電極
との間に集電帯を設けてもよい。また、表面電極層の表
面には透明な保護シートを設けると良い。さらに必要に
応じ、積層体全体を防湿フィルムで被覆しても良い。Examples of the material for the insulating layer include barium titanate, zirconium titanate, lead titanate, and titanium oxide. The surface electrode layer only needs to be transparent and have conductivity. For example, ITO (Indiumu Tin Oxide), IZO
(Indium Zinc Oxide), GaInO 3 , SnO 2 , Zn
O, In 2 O 3 or the like deposited on a resin film can be used. The surface electrode layer and the back electrode layer have A
An electrode terminal such as a foil or a copper wire may be provided, and a current collecting band may be provided between the terminal and the electrode. Further, a transparent protective sheet is preferably provided on the surface of the surface electrode layer. If necessary, the entire laminate may be covered with a moisture-proof film.
【００１５】(II)製造方法 本発明の発光表示パネルは、例えば、電極となる透明導
電膜や発光層となる発光材料の薄膜を担持した透明樹脂
フィルムを用いて、次のような方法により製造すること
ができる。 （イ）背面電極層となる導電層を有する絶縁基板(A1)
に、発光材料の薄膜を有する絶縁フィルム(B1)を絶縁フ
ィルムと導電層が接するように重ね、さらにこの上に、
中間電極層となる透明導電層を有する透明絶縁フィルム
(C1)と、表面電極層となる透明導電層を有する透明絶縁
フィルム(D1)とを、各々導電層を下向きにして順に積層
し、背面電極層と表面電極層および中間電極層とを選択
的に接続する電圧回路を設ける。 （ロ）絶縁基板(A2)、背面電極層となる導電層を有する
絶縁フィルム(B2)、発光材料からなる薄膜フィルム
(E)、中間電極層となる透明導電層を有する透明絶縁フ
ィルム(C2)、表面電極層となる透明導電層を有する透明
絶縁フィルム(D2)を、各々導電層を下向きにして順に積
層し、背面電極層と表面電極層および中間電極層とを選
択的に接続する電圧回路を設ける。なお、各製造方法に
おいて、中間電極層を有する透明絶縁フィルムには予め
所定形状の切欠が設けられる。各層の接合は必要に応じ
て接着剤が用いられる。また、積層体全体を包む保護シ
ートを設けても良い。 (II) Manufacturing Method The light emitting display panel of the present invention is manufactured by the following method using , for example, a transparent conductive film serving as an electrode and a transparent resin film carrying a thin film of a luminescent material serving as a luminescent layer. can do. (B) Insulating substrate (A1) having conductive layer to be back electrode layer
In addition, an insulating film (B1) having a thin film of a luminescent material is stacked so that the insulating film and the conductive layer are in contact with each other.
A transparent insulating film having a transparent conductive layer serving as an intermediate electrode layer
(C1) and a transparent insulating film (D1) having a transparent conductive layer serving as a surface electrode layer, each of which is sequentially laminated with the conductive layer facing downward, and selectively forming a back electrode layer, a surface electrode layer, and an intermediate electrode layer. Is provided with a voltage circuit. (B) Insulating substrate (A2), insulating film (B2) having conductive layer to be back electrode layer, thin film made of luminescent material
(E), a transparent insulating film having a transparent conductive layer serving as an intermediate electrode layer (C2), a transparent insulating film having a transparent conductive layer serving as a surface electrode layer (D2), each laminated sequentially with the conductive layer facing down, A voltage circuit is provided for selectively connecting the back electrode layer, the front electrode layer, and the intermediate electrode layer. In each manufacturing method, a notch of a predetermined shape is provided in advance on the transparent insulating film having the intermediate electrode layer. An adhesive is used for joining the layers as needed. Further, a protective sheet that wraps the entire laminate may be provided.
【００１６】以上のように、予め導電層ないし発光材料
薄膜を担持した樹脂フィルムを用いる方法によれば、容
易に発光表示パネルを製造することができる。なお、こ
の方法に代えて、スクリーン印刷やブレード印刷等によ
り導電層や発光層を印刷して形成しても良い。As described above, according to the method using the resin film in which the conductive layer or the luminescent material thin film is supported in advance, the light emitting display panel can be easily manufactured. Note that, instead of this method, the conductive layer or the light emitting layer may be formed by printing by screen printing, blade printing, or the like.
【００１７】[0017]
【実施例】実施例１ 図２に示すように、基板上のＡl箔からなる背面電極層
１１に、チタン酸バリウム粉末と高誘電体バインダー(シ
アノエチルフ゜ルラン)とをＤＭＦ(N,N-シ゛メチルホルムアミト゛)に溶かした
液を印刷し、乾燥して絶縁体層１２を形成した。この絶
縁体層１２の上に高絶縁体バインダーとＺｎＳ蛍光体(C
u,Clドープ)を有機溶剤に溶かした液を印刷し、乾燥し
て発光層１３を形成した。一方、図３に示すように、Ｐ
ＥＴフィルム１６ａ、１６ｂの片面にＩＴＯ膜１５a、
１６ｂを蒸着した透明な樹脂フィルムを用い、このフィ
ルムの中央を矢印形に切り抜いたものを上記発光層１３
の上に嵩ね、さらに、その上に、ＩＴＯ膜１５ｂを担持
した透明な樹脂フィルム１６ｂを積層した。背面電極層
１１と各透明樹脂フィルムのＩＴＯ膜に端子１８，１９
ａ、１９ｂを取り付けた後に、三フッ化塩化エチレン樹
脂からなる透明防湿フィルムで積層部を密封して発光表
示パネルを製造した。図４(a)に示すように、背面電極
層１１と中間電極層１３との間に交流電圧(100V,400Hz)
を印加したところ、背景部が部分的に発光した。また、
図４(b)に示すように、背面電極層１１と表面電極層１
４との間に上記交流電圧を印加したところ、矢印の箇所
が部分的に発光した。さらに、背面電極層１１と中間電
極層１３を短絡した状態で、表面電極層１４との間に上
記交流電圧を印加したところ、パネル全体が発光した。
これらの接続状態を交互に切り替えることにより、パネ
ル全体が発光して矢印が全く見えない状態から、矢印と
背景が交互に点滅する状態まで表示パターンを切り替え
ることができ、認識性の強い表示態様が得られた。 EXAMPLE 1 As shown in FIG. 2, a back electrode layer 11 made of Al foil on a substrate was coated with barium titanate powder and a high dielectric binder (cyanoethyl fururan) in DMF (N, N-dimethylformamide). ) Was printed and dried to form an insulator layer 12. On this insulator layer 12, a high insulator binder and a ZnS phosphor (C
A liquid in which (u, Cl dope) was dissolved in an organic solvent was printed and dried to form a light emitting layer 13. On the other hand, as shown in FIG.
One side of the ET films 16a and 16b has an ITO film 15a,
A transparent resin film having 16b deposited thereon was used.
And a transparent resin film 16b carrying an ITO film 15b was laminated thereon. The terminals 18 and 19 are connected to the back electrode layer 11 and the ITO film of each transparent resin film.
After attaching a and 19b, the laminated portion was sealed with a transparent moisture-proof film made of ethylene trifluoride chloride resin to produce a light emitting display panel. As shown in FIG. 4A, an AC voltage (100 V, 400 Hz) is applied between the back electrode layer 11 and the intermediate electrode layer 13.
Was applied, the background portion partially emitted light. Also,
As shown in FIG. 4B, the back electrode layer 11 and the surface electrode layer 1
When the AC voltage was applied between the sample and No. 4, the portion indicated by the arrow partially emitted light. Furthermore, when the AC voltage was applied between the back electrode layer 11 and the intermediate electrode layer 13 and the front electrode layer 14 was short-circuited, the entire panel emitted light.
By alternately switching these connection states, the display pattern can be switched from a state in which the entire panel emits light and the arrow is not visible at all, to a state in which the arrow and the background blink alternately. Obtained.
【００１８】実施例２ 実施例１と同様にして、背面電極層２１、絶縁層２２お
よび発光層２３からなる積層体を形成した。一方、図５
(a)に示すように、片面に透明電極層２５ａ、２５ｂ、
２５ｃを担持した透明樹脂フィルム２６ａ、２６ｂ、２
６ｃを用い、該フィルム２６ａ、２６ｂに切欠を設け
て、上記積層体の上に順に重ねることにより、背面電極
層２１に対して中間電極層２６ａ、２６ｂが二層に形成
され、さらに表面電極層２６ｃを有する発光表示パネル
を製造した。本パネルは、(イ)背面電極−中間電極層２
６ａ、(ロ)背面電極−中間電極層２６ｂ、(ハ)背面電極−
表面電極２６ｃの各接続状態で交流電圧を印加すると、
(イ)のときは背景、(ロ)のときは内側の輪、(ハ)のときは
上記(ロ)の輪の内円が各々発光し、接続状態を切り替え
ることにより、これらの表示パターンが交互に繰り返さ
れ、多彩な表示態様を構成できることが確認された。 Example 2 In the same manner as in Example 1, a laminate comprising the back electrode layer 21, the insulating layer 22, and the light emitting layer 23 was formed. On the other hand, FIG.
As shown in (a), transparent electrode layers 25a, 25b,
25c carrying transparent resin films 26a, 26b, 2
6c, the film 26a, 26b is provided with a notch, and the film 26a, 26b is sequentially stacked on the above-mentioned laminated body, whereby two intermediate electrode layers 26a, 26b are formed with respect to the back electrode layer 21, and the surface electrode layer is further formed. A light emitting display panel having 26c was manufactured. This panel consists of (a) back electrode-intermediate electrode layer 2
6a, (b) back electrode-intermediate electrode layer 26b, (c) back electrode-
When an AC voltage is applied in each connection state of the surface electrode 26c,
When (a) is the background, (b) is the inner ring, and (c) is the inner circle of the (b) ring, and by switching the connection state, these display patterns change. It was repeated alternately, and it was confirmed that various display modes could be configured.
【００１９】[0019]
【発明の効果】本発明の発光表示パネルは、発光箇所に
部分的に電圧を印加すればよいので消費電力を低減する
ことができる。また、多彩な発光パターンを有するの
で、看板や表示板に利用した場合に、従来のバックライ
ト方式の表示装置に比較して、印象が強く、視認性の高
い表示が可能である。さらに、構造が比較的単純である
ため、製造コストが廉価であり、故障等の問題も生じに
くい。According to the light emitting display panel of the present invention, it is only necessary to partially apply a voltage to a light emitting portion, so that power consumption can be reduced. In addition, since the display device has various light emission patterns, when used for a signboard or a display panel, a display with a strong impression and high visibility is possible as compared with a conventional backlight-type display device. Further, since the structure is relatively simple, the manufacturing cost is low, and problems such as failures are unlikely to occur.
【図１】本発明の発光表示パネルの構造を示す模式図。FIG. 1 is a schematic view showing a structure of a light emitting display panel of the present invention.
【図２】本発明の発光表示パネルの構造を示す模式図。FIG. 2 is a schematic view showing a structure of a light emitting display panel of the present invention.
【図３】本発明の発光表示パネルの製造例を示す模式
図。FIG. 3 is a schematic view showing a production example of the light emitting display panel of the present invention.
【図４】本発明の発光表示パネルの接続と発光パターン
を示す模式図。FIG. 4 is a schematic diagram showing connections and light emission patterns of the light emitting display panel of the present invention.
【図５】本発明の他の発光表示パネルの積層構造を示す
模式図。FIG. 5 is a schematic view showing a laminated structure of another light emitting display panel of the present invention.
１−背面電極層、２−絶縁体層、３−発光層、４−透明
電極層、４ａ、４ｂ、４ｃ−透明電極上の領域、５−絶
縁体、７−遮光マスク、１１−背面電極層、１２−絶縁
体層、１３−発光層、１４−制御電極層、１５ａ−透明
電極層、１６ａ−透明樹脂層、１５ｂ−透明電極層、１
６ｂ−透明樹脂層、１８−端子、１９ａ、１９ｂ−端
子、２１−背面電極層、２２−絶縁体層、２３−発光
層、２５ａ、２５ｂ、２５ｃ−透明電極層、２６ａ、２
６ｂ、２６ｃ−透明樹脂層、1-back electrode layer, 2-insulator layer, 3-light-emitting layer, 4-transparent electrode layer, 4a, 4b, 4c-area on transparent electrode, 5-insulator, 7-light shielding mask, 11-back electrode layer , 12-insulator layer, 13-light-emitting layer, 14-control electrode layer, 15a-transparent electrode layer, 16a-transparent resin layer, 15b-transparent electrode layer,
6b-transparent resin layer, 18-terminal, 19a, 19b-terminal, 21-back electrode layer, 22-insulator layer, 23-light emitting layer, 25a, 25b, 25c-transparent electrode layer, 26a, 2
6b, 26c-transparent resin layer,
───────────────────────────────────────────────────── フロントページの続き (72)発明者 辻元 俊夫 埼玉県大宮市北袋町１丁目297番地 三菱 マテリアル株式会社総合研究所内 (72)発明者 大久保 晶 埼玉県大宮市北袋町１丁目297番地 三菱 マテリアル株式会社総合研究所内 Ｆターム(参考） 3K007 AB05 AB17 AB18 CA06 CB01 DA04 DA05 DB02 DC01 DC02 EC01 FA01 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Toshio Tsujimoto 1-297 Kitabukurocho, Omiya City, Saitama Prefecture Inside Mitsubishi Materials Research Institute (72) Inventor Akira Okubo 1-297 Kitabukurocho, Omiya City, Saitama Mitsubishi Materials 3K007 AB05 AB17 AB18 CA06 CB01 DA04 DA05 DB02 DC01 DC02 EC01 FA01
Claims (5)
絶縁層と発光層および透明な中間電極層を積層してなる
発光表示パネルであって、中間電極層が発光層に接触す
ると共に表面電極層には透明樹脂層を介して絶縁されて
おり、この中間電極層の切欠部分を通じて表面電極層が
発光層に接触しており、これらの電極と発光層との接触
部分が印可電圧を受けて発光することを特徴とする発光
表示パネル。1. A light emitting display panel comprising an insulating layer, a light emitting layer, and a transparent intermediate electrode layer laminated between a back electrode layer and a transparent surface electrode layer, wherein the intermediate electrode layer contacts the light emitting layer. At the same time, the surface electrode layer is insulated via a transparent resin layer, the surface electrode layer is in contact with the light emitting layer through the cutout portion of the intermediate electrode layer, and the contact portion between these electrodes and the light emitting layer is applied voltage. A light-emitting display panel that emits light upon receiving the light.
の積層体によって複数の中間電極層が形成されており、
発光層側(下側)の中間電極層の切欠部分を通じて上側の
中間電極層が発光層に接触しており、これら複数の接触
部分が選択的に印可電圧を受けて発光する請求項１に記
載の発光表示パネル。2. A plurality of intermediate electrode layers are formed by a laminate of a transparent insulating film carrying a transparent conductive layer,
The upper intermediate electrode layer is in contact with the light emitting layer through a cutout portion of the intermediate electrode layer on the light emitting layer side (lower side), and the plurality of contact portions selectively emit light upon receiving an applied voltage. Light-emitting display panel.
光層の各接触部分が互いに異なった色調に発光する請求
項１または２に記載の発光表示パネル。3. The light emitting display panel according to claim 1, wherein each contact portion of the light emitting layer in contact with the surface electrode layer and the intermediate electrode emits light of different colors.
板に、発光材料の薄膜を有する絶縁フィルムを重ね、更
にこの上に中間電極層となる透明導電層を有する透明絶
縁フィルム、表面電極層となる透明導電層を有する他の
透明絶縁フィルムを順に積層して請求項１または２の発
光表示パネルを製造する方法。4. A transparent insulating film having a thin film of a luminescent material on an insulating substrate having a conductive layer to be a back electrode layer, a transparent insulating film having a transparent conductive layer to be an intermediate electrode layer, and a surface electrode layer The method for manufacturing a light emitting display panel according to claim 1, wherein another transparent insulating film having a transparent conductive layer is sequentially laminated.
する絶縁フィルム、発光材料からなる薄膜フィルム、中
間電極層となる透明導電層を有する透明絶縁フィルム、
表面電極層となる透明導電層を有する他の透明絶縁フィ
ルムを順に積層して請求項１または２の発光表示パネル
を製造する方法。5. An insulating substrate, an insulating film having a conductive layer serving as a back electrode layer, a thin film made of a luminescent material, a transparent insulating film having a transparent conductive layer serving as an intermediate electrode layer,
3. The method for manufacturing a light emitting display panel according to claim 1, wherein another transparent insulating film having a transparent conductive layer serving as a surface electrode layer is sequentially laminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10192587A JP2000030859A (en) | 1998-07-08 | 1998-07-08 | Light emitting display panel and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10192587A JP2000030859A (en) | 1998-07-08 | 1998-07-08 | Light emitting display panel and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000030859A true JP2000030859A (en) | 2000-01-28 |
Family
ID=16293769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10192587A Withdrawn JP2000030859A (en) | 1998-07-08 | 1998-07-08 | Light emitting display panel and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000030859A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010508620A (en) * | 2006-09-12 | 2010-03-18 | キユーデイー・ビジヨン・インコーポレーテツド | Electroluminescent display useful for displaying a predetermined pattern |
| US9054329B2 (en) | 2006-06-02 | 2015-06-09 | Qd Vision, Inc. | Light-emitting devices and displays with improved performance |
-
1998
- 1998-07-08 JP JP10192587A patent/JP2000030859A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9054329B2 (en) | 2006-06-02 | 2015-06-09 | Qd Vision, Inc. | Light-emitting devices and displays with improved performance |
| US9853184B2 (en) | 2006-06-02 | 2017-12-26 | Samsung Electronics Co., Ltd. | Light-emitting devices and displays with improved performance |
| US10297713B2 (en) | 2006-06-02 | 2019-05-21 | Samsung Electronics Co., Ltd. | Light-emitting devices and displays with improved performance |
| US10770619B2 (en) | 2006-06-02 | 2020-09-08 | Samsung Electronics Co., Ltd. | Light-emitting devices and displays with improved performance |
| JP2010508620A (en) * | 2006-09-12 | 2010-03-18 | キユーデイー・ビジヨン・インコーポレーテツド | Electroluminescent display useful for displaying a predetermined pattern |
| US9006753B2 (en) | 2006-09-12 | 2015-04-14 | Qd Vision, Inc. | Electroluminescent display useful for displaying a predetermined pattern |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2002512434A (en) | EL device | |
| EP0906714B1 (en) | Electroluminescent system in monolithic structure | |
| US4684353A (en) | Flexible electroluminescent film laminate | |
| JPH10335063A (en) | Combination of electroluminescent lamp device parts | |
| KR100308721B1 (en) | Dispersed multicolor electro-luminescent lamp and electro-luminescent lamp unit employing thereof | |
| JP4751320B2 (en) | Illuminated switch and electronic device using the same | |
| JPH1140361A (en) | EL light emitting panel and method of manufacturing the same | |
| JPH11224782A (en) | Electroluminescence | |
| JP2000030859A (en) | Light emitting display panel and manufacturing method thereof | |
| JP2003173880A (en) | EL element and illumination device using the same | |
| JPH0765950A (en) | Distributed EL light emitting device | |
| JPH08148278A (en) | El apparatus | |
| JP2000277261A (en) | Light-emitting display element | |
| JPH0831572A (en) | Electric field electroluminescent display element | |
| US7872416B2 (en) | Electroluminescent display | |
| JPH09266071A (en) | EL lamp | |
| JP4719202B2 (en) | Illuminated switch and manufacturing method thereof | |
| JP2002208490A (en) | Laminated el element display device, and manufacturing method of the same | |
| JPH05303995A (en) | Electroluminescent lamp and its manufacture | |
| JPH0135350B2 (en) | ||
| US20030030383A1 (en) | Process for the manufacture of an electroluminescent film and application of such a film | |
| KR100934451B1 (en) | EL display device and manufacturing method thereof | |
| KR100860569B1 (en) | Inorganic electro-luminescence lamp and manufacturing method thereof | |
| JP2795132B2 (en) | EL device | |
| JP2004207014A (en) | Electroluminescent lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20051004 |