201222807 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種有機el面板者。 【先前技術】 有機EL面板於基板上配置有單個或複數個有機虹元 件，作為顯示器或照明光源等各種發光裝置利用。成為有 機EL面板中的1個發光要件之有機EL元件具有於丨對電極 之間層疊包含發光層之有機層之結構，丨對電極的其中一 方成為陽極，另一方成為陰極，藉由從陽極側注入之電洞 和從陰極側注入之電子在有機層内再結合而放出光。 作為有機EL面板的驅動方式，已知有無源矩陣驅動方式 (單純矩陣驅動方式）。該方式係，與由條紋狀電極圖案形 成之陽極相對，由與此交叉之條紋狀電極圖案形成陰極， 於陽極與陰極的交又部份以矩陣狀形成複數個挾持有機層 之有機EL·元件者，係向所選擇之陰極與陽極之間外加電壓 並使藉由其陰極和陽極形成之有機EL元件發光者（參考下 述專利文獻1)。 先行技術文獻 專利文獻 專利文獻1 :曰本專利公開2003-264069號公報 發明所欲解決之問題 無源矩陣驅動的有機EL面板在有機EL元件的陰極與陽 極之間發生短路時，不僅在發生短路之有機EL元件產生發 光不良’還存在發生影響整個面板之發光不良之問題。這 158558.doc 201222807 會導致如下問題：例如若在陽極側的1支電極和與其交又 之陰極側的1支電極之間的一部份存在短路部位，則無法 對父叉之2支電極成為陽極或陰極之所有有機el元件進行 正常的發光或不發光，並且沿各電極產生線狀的異常發光 (暗線或明線）。 此外，在對發生短路之陽極與陰極之間穩定地外加逆向 偏壓之驅動方式令，還存在如下問題：大電流（洩漏電流） 穩定地流過短路部位，周邊的有機EL元件因由此產生之發 熱引起熱量損失，長期驅動時導致發光不良的範圍向短路 部位周圍擴大。 而且，在無源矩陣驅動方式的有機£1^面板中，由於在形 成陽極或陰極之1支電極的一端側連接供電部，因此產生 士下現象.藉由依據該電極的電阻之電壓下降，被外加於 遠離供電部之有機虹元件之電壓變得低於被外加於靠近供 :部之有機EL元件之電壓。藉此’在靠近供電部之一側和 遠離供電部之_側變得容易產生有機肛元件的發光亮度不 均，當電極的電阻較大時，存在無法在整個有機虹面板中 得到均勻的亮度之問題。 【發明内容】 表本發明係將解決這種問題作為課題的一例者。亦即，本 &月的目的在於’即使在有機虹元件的陽極與陰極之間產 生短路時，亦能夠抑制像影響整個有機EL面板那樣的發光 用b夠迅速抑制流向短路部位之大電流來防止發光不 义圍的擴大’能夠在整個有機EL面板中得到均勻的亮度 158558.doc 201222807 等。 解決問題之技術手段 為了實現這種目的，本發明係至少具備以下結構者。 -種於基板上配置有複數個有機紅元件之有機乩面 板，其特徵為，前述有機EL元件具備層疊^電極、有機 層及第2電極之結構’前述第}電極具有按每個前述有機肛 元件獨立之電極圖案，前述有機EL面板具備對前述第π 極^行電力供給之配線，前述^電極和前述配線藉由層 疊别述第1電極的-部份和前述配線的—部份之層疊部連 接，前述層疊部附近的前述第的一部份具有窄幅 部，前述第丨電極的比電阻大於前述配線的比電阻。 【實施方式】 以下，參考附圖對本發明的實施方式進行說明。本發明 的實施方式係包括圖示之内容但並不僅限於此者。圖】係 表不本發明的一實施方式之有機EL面板的結構之說明圖 (该圖（a)係表示平面式結構之說明圖，該圖沙）係χ_χ截面 圖）。 有機EL面板1具有於基板10上配置有複數個有機EL元件 1A之結構。有機EL元件1A具備有層疊第1電極u、有機層 12及第2電極13之結構（有機層12包含發光層12A。）。第1 電極11具有按每個有機EL元件1A獨立之電極圖案。有機 EL面板1具備有與第1電極11相鄰並對第1電極丨丨進行電力 供給之配線14。 第1電極11和配線14藉由層疊第1電極11的一部份和配線 158558.doc 201222807 14的一部份之層疊部15連接。在圖示之例子中，在第1電 極11的一部份上層疊有配線14的一部份，但亦可與此相反 地在配線14的一部份上層疊有第1電極11的—部份。 層疊部15附近的第1電極11的一部份具有因基於過剩電 流之加熱被分斷而從配線14斷開第1電極11之窄幅部丨丨a。 此處的窄幅部11A係第1電極11的一部份，係在第1電極i i 的圖案形成時’與第1電極11的主體部同時形成者，具有 窄於第1電極11的一方向的寬度之寬度。第】電極u的主體 部是指成為有機EL元件1A的陽極或陰極之部份。 並且’有機el面板1中，第1電極η的比電阻大於配線14 的比電阻。亦即’在層疊部15中，被層疊之第1電極丨〗的 一部份的比電阻大於配線14的一部份的比電阻。包括窄幅 部11A在内之第1電極丨丨由大致均勻的材料形成，在從窄幅 部11A透過層疊部15到達配線14之處，比電阻逐步降低。 配線14沿一方向具有條紋狀圖案，沿該配線抖形成複數 個第1電極11，第2電極13在與配線14交又之方向上具有條 紋狀圖案。這種有機EL面板1能夠將第2電極丨3和配線14中 的其中一方設為掃描線且將另一方設為資料線來進行無源 矩陣驅動。此時，被選擇之有機EL元件丨八中，第i電極u 與第2電極13之間被外加正向電壓（陽極側成為正、陰極側 成為負之電壓），從陽極側注入之電洞和^^ ^ ^ 電子在有機層Μ進行再結合而放出光。該有機虹面板i 係可成為使複數個有機EL元件丨八選擇性地發光來顯示情 報之顯示裝置、或使預定區域的有機EL元件丨八同時發光 158558.doc201222807 VI. Description of the Invention: [Technical Field to Which the Invention Is Ascribed] The present invention relates to an organic el panel. [Prior Art] The organic EL panel is provided with a single or a plurality of organic rainbow elements on a substrate, and is used as various light-emitting devices such as a display or an illumination source. An organic EL device which is one of the light-emitting elements in the organic EL panel has a structure in which an organic layer including a light-emitting layer is laminated between the counter electrodes, and one of the counter electrodes serves as an anode, and the other serves as a cathode, from the anode side. The injected holes and the electrons injected from the cathode side are recombined in the organic layer to emit light. As a driving method of the organic EL panel, a passive matrix driving method (simple matrix driving method) is known. In this method, a cathode is formed by a stripe-shaped electrode pattern which is formed by a stripe-shaped electrode pattern, and a plurality of organic EL elements are formed in a matrix form in a matrix form at the intersection of the anode and the cathode. A voltage is applied between the selected cathode and the anode, and the organic EL element formed by the cathode and the anode is illuminated (refer to Patent Document 1 below). CITATION LIST Patent Literature Patent Literature 1: JP-A-2003-264069 SUMMARY OF THE INVENTION Problems to be Solved by the Invention The passive matrix-driven organic EL panel is short-circuited not only when a short circuit occurs between the cathode and the anode of the organic EL element. The organic EL element generates a poor light emission. There is also a problem that the light emission of the entire panel is adversely affected. This 158558.doc 201222807 causes a problem that, for example, if there is a short-circuited portion between one electrode on the anode side and one electrode on the cathode side of the anode side, the two electrodes of the parent fork cannot be formed. All of the organic EL elements of the anode or cathode undergo normal or no luminescence, and produce linear anomalous luminescence (dark line or bright line) along each electrode. Further, in the drive mode in which the reverse bias is stably applied between the anode and the cathode which are short-circuited, there is a problem that a large current (leakage current) flows stably through the short-circuited portion, and the peripheral organic EL element is thereby generated. Heat is caused by heat loss, and the range of light-emitting failure caused by long-term driving increases toward the periphery of the short-circuited portion. Further, in the organic matrix panel of the passive matrix driving method, since the power supply portion is connected to one end side of one of the electrodes forming the anode or the cathode, a phenomenon in which the voltage is lowered by the resistance of the electrode is generated. The voltage applied to the organic rainbow element remote from the power supply portion becomes lower than the voltage applied to the organic EL element adjacent to the supply portion. Therefore, it is easy to generate uneven brightness of the organic anal element on the side close to one side of the power supply unit and away from the power supply unit, and when the resistance of the electrode is large, there is no uniform brightness in the entire organic rainbow panel. The problem. SUMMARY OF THE INVENTION The present invention is an example of solving such a problem. In other words, the purpose of this & month is to prevent the light-emitting b that affects the entire organic EL panel from quickly suppressing the large current flowing to the short-circuited portion even when a short circuit occurs between the anode and the cathode of the organic-ion element. Preventing the expansion of the illuminance of the illuminance can achieve uniform brightness throughout the organic EL panel 158558.doc 201222807 and so on. Means for Solving the Problems In order to achieve the object, the present invention has at least the following configurations. An organic tantalum panel in which a plurality of organic red elements are disposed on a substrate, wherein the organic EL element has a structure of a stacked electrode, an organic layer, and a second electrode, and the first electrode has an organic anus In the electrode pattern in which the element is independent, the organic EL panel includes a wiring for supplying electric power to the πth electrode, and the electrode and the wiring are stacked by laminating a portion of the first electrode and a portion of the wiring. The first portion of the vicinity of the laminated portion has a narrow portion, and the specific resistance of the second electrode is larger than a specific resistance of the wiring. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments of the present invention include the contents of the drawings but are not limited thereto. Fig. 1 is an explanatory view showing the structure of an organic EL panel according to an embodiment of the present invention (the figure (a) is an explanatory view showing a planar structure, and the drawing is a cross-sectional view). The organic EL panel 1 has a structure in which a plurality of organic EL elements 1A are disposed on a substrate 10. The organic EL element 1A has a structure in which the first electrode u, the organic layer 12, and the second electrode 13 are laminated (the organic layer 12 includes the light-emitting layer 12A). The first electrode 11 has an electrode pattern which is independent for each of the organic EL elements 1A. The organic EL panel 1 includes a wiring 14 that is adjacent to the first electrode 11 and supplies electric power to the first electrode 。. The first electrode 11 and the wiring 14 are connected by laminating a part of the first electrode 11 and a laminated portion 15 of a portion of the wiring 158558.doc 201222807 14. In the illustrated example, a portion of the wiring 14 is laminated on a portion of the first electrode 11, but the portion of the first electrode 11 may be laminated on a portion of the wiring 14 in contrast thereto. Share. A portion of the first electrode 11 in the vicinity of the laminated portion 15 has a narrow portion 丨丨a that is disconnected from the wiring 14 by the wiring 14 due to the heating by the excess current. Here, the narrow portion 11A is a portion of the first electrode 11 which is formed at the same time as the main portion of the first electrode 11 when the pattern of the first electrode ii is formed, and has a direction narrower than that of the first electrode 11. The width of the width. The main portion of the electrode u refers to a portion which becomes an anode or a cathode of the organic EL element 1A. Further, in the organic EL panel 1, the specific resistance of the first electrode η is larger than the specific resistance of the wiring 14. That is, the specific resistance of a portion of the laminated first electrode 在 in the laminated portion 15 is larger than the specific resistance of a portion of the wiring 14. The first electrode Φ including the narrow portion 11A is formed of a substantially uniform material, and the specific resistance gradually decreases when the narrow portion 11A passes through the laminated portion 15 to reach the wiring 14. The wiring 14 has a stripe pattern in one direction, and a plurality of first electrodes 11 are formed by shaking along the wiring, and the second electrode 13 has a stripe pattern in a direction intersecting the wiring 14. The organic EL panel 1 can perform passive matrix driving by setting one of the second electrode 丨3 and the wiring 14 as a scanning line and the other as a data line. At this time, in the selected organic EL element ,8, a forward voltage is applied between the i-th electrode u and the second electrode 13 (the anode side is positive and the cathode side is negative voltage), and the hole is injected from the anode side. And ^^ ^ ^ electrons are recombined in the organic layer to emit light. The organic rainbow panel i can be a display device that selectively emits light by a plurality of organic EL elements, or causes an organic EL element in a predetermined region to emit light at the same time. 158558.doc
201222807 之照明装置、其他各種光學設備的光源等者，其用途並未 特別限定。 圖2係表示有機EL面板1的作用之說明圖。第1電極11的 一部份與配線14的一部份連接》具體而言，第1電極^的 伤成為窄幅部11A ’被連接於作為配線14的一部份之 突出部14A。在圖示之例子中，窄幅部iiA具有窄於第1電 極11的沿配線14之寬度（縱寬L)之寬度W2 ^此外，突出部 14A沿配線14具有寬於窄幅部11A的寬度W2之寬度W1。並 且’在突出部14 A的寬度内被形成有連接第1電極〖丨和配線 14之層疊部15❶該有機EL面板1具有如下功能，亦即在特 定的有機EL元件1A中，在第1電極11與第2電極13之間發 生短路時’從配線14斷開該特定的有機el元件1A中的第1 電極11，從而將短路的影響限制在最低限度。 在此’如該圖（a)所示般，在特定之有機el元件1A令， 在第1電極11與第2電極13之間存在短路部位p時，若成為 第1電極11與第2電極13之間被外加電壓之狀態，則由於經 由短路部位P之過剩電流，無法在第1電極丨丨與第2電極13 之間保持所希望的電位差，該有機EL元件1A變成發光不 良。在S玄狀怨下經由短路部位p而流動之過剩電流朝向比 電阻低於第1電極11之配線i 4流動，但是朝向配線丨4之電 ml均穿過作為第1電極11的一部份之窄幅部11 a，因此電流 集中於此，使得在電阻值比較高之窄幅部11A中有效地產 生焦耳熱。如該圖（b)所示般’在窄幅部丨丨a中，第1電極 11和配線14因基於該焦耳熱之加熱被分斷，並且從配線^ 4 158558.doc 201222807 斷開短路部位P所存在之特定的有機EL元件1A中的第1電 極11。 此處的特徵之一在於，由與第1電極11相同之比電阻較 问之材料形成有窄幅部丨丨Α。假設，若以電阻低於第丨電極 之材料的圖案結合第1電極1 1和配線1 4 ,則由於電阻較 低之緣故無法在該結合部份得到有效的焦耳熱，過剩電流 繼續流動很長一段時間而有可能導致周邊的有機EL元件 1A的熱量損失。此外，不形成窄幅部ιΐΑ而將配線14連接 於第1電極11的一邊時，由於沒有使電流局部性集中之部 位，因此無法有效地斷開第丨電極丨丨和配線14。亦即，藉 由形成窄幅部11A作為第丨電極丨丨的一部份，能夠在有機 EL元件1A的第1電極u與第2電極13之間發生短路時迅速 分斷窄幅部11A，並從配線丨4斷開第丨電極丨！。 此外’另一其他特徵在於’直接層疊第1電極丨丨的一部 份和配線14的一部份這一點。在有機EL面板丨中，直接層 疊電阻比較咼之第1電極丨丨和電阻比較低之配線丨4，其間 不存在具有中間電阻之夾雜物。藉此，在層疊部丨5附近之 乍幅部11A中電流密度局部性變高，在此處產生積極的加 熱而窄幅部11A被分斷。藉此能夠更有效地從配線i 4斷開 已發生短路之第1電極η。 此外’圖示之形態例中，在有機EL面板1中，前述之配 線14的一部份具有從配線14的側緣向第i電極丨i側突出之 突出部14A。依此，則無論配線14的寬度如何，都能夠任 意地設定前述之層疊部15的長度。藉此，能夠依據層疊部 158558.doc 201222807 15的長度適當地調整對第1電極u的電力供給。 再者’圖示之形態例中，在有機EL面板1中，前述之配 線14的一部份的寬度W1形成為大於第1電極11的一部份的 寬度W2 °亦即，配線14上的突出部14A的寬度W1形成為 大於第1電極11的窄幅部11A的寬度W2。依此，藉由使過 剩電流集中之窄幅部11A的寬度更窄，能夠迅速地進行第1 電極11和配線14的分斷，並且當連接第1電極丨丨的圖案和 配線14的圖案時’突出部14Α的寬度W1和窄幅部11Α的寬 度W2之差容許位置偏離，無需進行高精確度的定位而能 夠將層疊部15的寬度保持為恆定，並在所有的有機el元件 1A中穩定化對第1電極丨〖的電力供給。 圖3係表示有機EL面板1的另一形態之說明圖。該形態例 中’層疊部15的面積按每個沿配線14形成之複數個第1電 極11不同，在圖示之例子中，關於層疊部丨5的面積，從使 電流流向配線14之供電部20的距離較遠之第1電極11(114) 中的面積大於從供電部20的距離較近之第1電極ιι(11_2)中 的面積。 在此’為了使層疊部15的面積不同，改變突出部μα的 長度（LI、L2)，使窄幅部ΠΑ的寬度在任一第1電極nQi-1、11-2)中均恆定。藉此’即使改變層疊部15的面積，亦 不會影響窄幅部11A的分斷性能。如此，藉由將層疊部μ 的面積設為從供電部20的距離較遠之第1電極ιι(ιυ)中的 面積大於從供電部20的距離較近之第1電極ii(u _2)中的面 積’能夠藉由層疊部15的面積差異抵消因配線14的電阻引 158558.doc 201222807 起之電壓下降，能夠消除在靠近供電部2G之—側和遠離供 電部20之一側產生有機EL元件1A的發光亮度不均之問 題，並在整個有機EL面板1中得到均勻的亮度。 如以上說明，本發明的實施方式之有機EL面板丨在無源 矩陣驅動方式中，即使在有機EL元件丨八的陰極與陽極之 間發生短路時，亦能夠從配線14迅速斷開具有短路部位之 有機EL元件1A，防止短路的影響遍及其他有機队元件 1A。因此’複數個有機EL元件ία中，雖然發生因具有短 路部位之特定有機EL元件1A的發光不良引起之點狀缺 陷’但能夠對於發生影響整個有機EL面板1之線狀的異常 發光（暗線或明線）做到防範於未然。 此外’即使是對短路之陽極與陰極之間穩定地外加逆向 偏壓之驅動方式，由於能夠在短時間内抑制大電流（洩漏 電流）穩定地流過短路部位，因此不會發生因基於該大電 流之發熱引起周邊的有機EL元件1A的熱量損失並導致發 光不良範圍擴大之類的不良情況。 並且，對於藉由依據配線14的電阻之電壓下降，被供給 至遠離供電部20之有機EL元件1A之電壓變得低於靠近供 電部20之有機EL元件之電壓之現象，能夠藉由調整前述之 層疊部15的面積，在整個有機EL面板中得到均勻的亮度。 以下，參考圖1對本發明的實施方式之有機EL面板的結 構例進行進一步具體說明。 基板10由玻璃、塑膠、在表面上被形成有絕緣材料層之 金屬等能夠支承有機EL元件1A之基材形成。形成第1電極 158558.doc •10- 201222807 11之透明導電膜層可採用IT0(Indium Tin Qxide)、 IZO(Indium Zinc Oxide)、氧化辞系透明導電膜、Sn〇2系透 明導電膜、二氧化鈦系透明導電膜等透明金屬氧化物，配 線14可採用低電阻金屬即銀（Ag)或銀合金、鋁（A1)或銘合 金等。基板10上的第1電極11或配線14的圖案形成，能夠 在藉由濺射或蒸鑛成膜後，藉由光刻钱製程等進行。 絕緣膜16為了確保被圖案形成之第1電極11及配線1 *的 絕緣性而被設置’採用聚醯亞胺樹脂、丙烯系樹脂、氧化 石夕、氮化石夕荨材料。絕緣膜16的形成係，在被形成有第1 電極11及配線14之基板10上成膜後’進行在第1電極丨丨上 形成發光部100的開口之圖案形成。具體而言，藉由旋塗 法在被形成有第1電極11及配線14之基板1〇形成成為預定 塗佈厚度之膜，藉由利用曝光掩模實施曝光處理、顯影處 理，形成具有發光部100的開口圖案形狀之絕緣膜16的 層。該絕緣膜16以覆蓋配線14，並以填充第丨電極u的圖 案之間並局部覆蓋其側端部份之方式形成，被形成為格子 狀。藉此’使發光部100於第1電極11上開口，其區域藉由 絕緣膜16被絕緣劃分。 由於省略圖示之隔壁不利用掩模等而形成第2電極13的 圖案，或者將相鄰之第2電極13完全電絕緣，因此在與配 線14父叉之方向上被形成為條紋狀。具體而言藉由旋塗 法等’將光敏性樹脂等絕緣材料以厚於形成有機El元件 1A之有機層12和第2電極13的膜厚的總和之膜厚塗佈形成 於絕緣膜16上之後，於該光敏性樹脂膜上，透過具有與第 158558.doc 201222807 1電極11交叉之條紋狀圖案之光掩模照射紫外線等，利用 由於層的厚度方向的曝光量不同而產生之顯影速度之差， 形成具有侧部朝下的錐面之隔壁。 有機層12具有包含發光層12 A之發光功能層的層疊結 構，若將第1電極11和第2電極13的其中一方設為陽極，將 另一方設為陰極，則從陽極側依次選擇性地形成電洞注入 層、電洞傳輸層、發光層、電子傳輸層、電子注入層等。 關於有機層12的成膜，採用真空蒸鍍法等作為乾式成膜， 採用塗佈或各種印刷法作為濕式成膜。 以下說明有機層12的形成例。例如，首先作為電洞傳輸 層，成膜 NPB(N，N-di(naphtalence)-N，N-diPheneyl-benzidene)。 省電源傳輸層具有將從陽極注入之電洞傳輸至發光層之功 能。該電洞傳輸層可以係僅層疊!層者，亦可係層疊2層以 上者。此外，電洞傳輸層不用藉由單一材料進行成膜，可 以藉由複數個材料形成】個層，亦可於電荷傳輸能力較高 之主體材料上摻雜電荷供給（容納）性較高之客體材料。 接著，於電洞傳輸層上成膜發光層。作為其中一例，藉 由電阻加熱蒸錄法’利用分塗用掩模，將紅色（r)、綠^ ⑹、藍色⑻發光層成膜於各個成膜區域。作為紅色⑻， 採用DCMl(4-(二氰基亞甲基） 2甲基-6-(4，-二甲基氨基苯 乙烯基）-4H- 比喃）等苯乙烯色紊 料。作為物。〆 色素尊發出紅色光之有機材 :右IS 琳紹配合物〜等發出綠色光 之有機材料。作為藍色⑻，採用二苯乙婦衍生物、三唾 衍生物等發出藍色光之有 一 寸田然’可以採用其他材 158558.doc 201222807 料，可以係主體-客體類的層結構，發光形態亦可以係可 採用螢光發光材料亦可採用磷光發光材料者。 被成膜於發光層上之電子傳輸層’藉由電阻加熱蒸鍍法 等各種成膜方法，採用例如喹啉鋁配合物（Alq3)等各種材 料進行成膜。電子傳輸層具有將從陰極注入之電子傳輸至 發光層之功能。該電子傳輸層可以係僅層疊丨層者，亦可 具有層疊2層以上之多層結構β此外，電子傳輸層不用藉 由單一材料進行成膜，可以藉由複數個材料形成〖個層， 亦可於電荷傳輸能力較高之主體材料上摻雜電荷供給（容 納）性較高之客體材料而形成。 被形成於有機層12上之第2電極13 ’當這些為陰極時， 月b夠採用功函數小於陽極（例如4 eV以下）的材料（金屬、金 屬氧化物、金屬氟化物、合金等），具體而言，能夠使用 鋁（A1)、銦（in)、鎂（Mg)等金屬膜；被摻雜之聚苯胺或被 摻雜之聚苯撐乙烯等非晶質半導體；Cr2〇3、犯〇、 等氧化物。作為結構，能夠採用基於金屬材料之單層結 構、LiOyAl等層疊結構等。 以上，參考附圖對本發明的實施方式進行了詳述，但具 體=構係並^限於這些實施方式者，即使有不脫離本發 明宗旨之範圍内的設計變更等，#包含於本發明。在上述 各圖中不出之實施方式，只要其目的及結 的矛盾或問題，即可組合相互的記載内容。此外 記載内容係能夠成為各自獨立之實施方式者，本發明的實 施方式並非係限於組合各圖之—個實施方式者。 158558.doc -13- 201222807 【圖式簡單說明】 實施方式之有機EL面板的結構之 面式結構之說明圖，該圖（b)係X- 圖1係表示本發明的一 說明圖（該圖（a)係表示平 X截面圖）； 圖2(a)、2(b)係表示本發明的實施方式之有機EL面板的 作用之說明圖；及 圖3係表示本發明的實施方式之有機el面板的另一方式 之說明圖。 【主要元件符號說明】 1 有機EL面板 1A 有機EL元件 10 基板 11 第1電極 11-1 第1電極 11-2 第1電極 11A 窄幅部 12 有機層 12A 發光層 13 第2電極 14 配線 14A 突出部 15 層疊部 16 絕緣膜 20 供電部 158558.doc 201222807 100 發光部 L 縱寬 LI 長度 L2 長度 P 短路部位 W1 寬度 W2 寬度 158558.docThe use of the illumination device of 201222807, the light source of various other optical devices, and the like is not particularly limited. FIG. 2 is an explanatory view showing the action of the organic EL panel 1. A part of the first electrode 11 is connected to a part of the wiring 14. Specifically, the damage of the first electrode ^ is such that the narrow portion 11A' is connected to the protruding portion 14A which is a part of the wiring 14. In the illustrated example, the narrow portion iiA has a width W2 that is narrower than the width (width L) of the first electrode 11 along the wiring 14. Further, the protruding portion 14A has a width wider than the narrow portion 11A along the wiring 14. W2 width W1. Further, the laminated portion 15 to which the first electrode 丨 and the wiring 14 are connected is formed in the width of the protruding portion 14A. The organic EL panel 1 has a function of, in the specific organic EL element 1A, at the first electrode. When a short circuit occurs between the 11 and the second electrode 13, the first electrode 11 of the specific organic EL element 1A is disconnected from the wiring 14, and the influence of the short circuit is minimized. Here, as shown in the figure (a), when the short-circuited portion p exists between the first electrode 11 and the second electrode 13 in the specific organic EL element 1A, the first electrode 11 and the second electrode are formed. When the voltage is applied between the 13 and the excess current passing through the short-circuit portion P, a desired potential difference cannot be maintained between the first electrode 丨丨 and the second electrode 13, and the organic EL element 1A becomes defective in light emission. The excess current flowing through the short-circuit portion p under the S-like sorrow flows toward the wiring i 4 having a lower specific resistance than the first electrode 11, but the electric droplets toward the wiring 丨 4 pass through as a part of the first electrode 11 The narrow portion 11a is thus concentrated in the current so that Joule heat is efficiently generated in the narrow portion 11A having a relatively high resistance value. As shown in the figure (b), in the narrow portion 丨丨a, the first electrode 11 and the wiring 14 are separated by heating based on the Joule heat, and the short-circuited portion is disconnected from the wiring ^ 4 158558.doc 201222807 The first electrode 11 in the specific organic EL element 1A in which P exists. One of the features here is that a material having a specific specific resistance as that of the first electrode 11 is formed with a narrow portion 丨丨Α. It is assumed that if the first electrode 11 and the wiring 14 are combined in a pattern having a lower electric resistance than the material of the second electrode, an effective Joule heat cannot be obtained in the bonded portion due to a low electric resistance, and the excess current continues to flow for a long time. There is a possibility of causing heat loss of the peripheral organic EL element 1A for a while. Further, when the wiring 14 is connected to one side of the first electrode 11 without forming the narrow portion, the second electrode 丨丨 and the wiring 14 cannot be effectively disconnected because there is no portion where the current is locally concentrated. In other words, by forming the narrow portion 11A as a part of the second electrode 丨丨, the narrow portion 11A can be quickly separated when a short circuit occurs between the first electrode u and the second electrode 13 of the organic EL element 1A. And disconnect the second electrode from the wiring 丨4! . Further, another feature is that a portion of the first electrode 和 and a portion of the wiring 14 are directly laminated. In the organic EL panel, the direct lamination resistance is compared with the first electrode 咼 and the wiring 丨 4 having a relatively low resistance, and there is no inclusion having an intermediate resistance therebetween. Thereby, the current density locally becomes higher in the swollen portion 11A in the vicinity of the lamination portion 丨5, where positive heating is generated and the narrow portion 11A is broken. Thereby, the first electrode η which has short-circuited can be disconnected more effectively from the wiring i 4 . In the embodiment of the invention, in the organic EL panel 1, a part of the wiring 14 has a protruding portion 14A that protrudes from the side edge of the wiring 14 toward the i-th electrode 丨i side. Accordingly, the length of the above-described laminated portion 15 can be arbitrarily set regardless of the width of the wiring 14. Thereby, the electric power supply to the first electrode u can be appropriately adjusted in accordance with the length of the laminated portion 158558.doc 20122280715. In the example of the illustration, in the organic EL panel 1, the width W1 of a portion of the wiring 14 is formed to be larger than the width W2 of a portion of the first electrode 11, that is, on the wiring 14. The width W1 of the protruding portion 14A is formed to be larger than the width W2 of the narrow portion 11A of the first electrode 11. With this, the width of the narrow portion 11A in which the excess current is concentrated is made narrower, so that the division of the first electrode 11 and the wiring 14 can be quickly performed, and when the pattern of the first electrode 和 and the pattern of the wiring 14 are connected The difference between the width W1 of the protruding portion 14Α and the width W2 of the narrow portion 11Α allows positional deviation, and the width of the laminated portion 15 can be kept constant without high-precision positioning, and is stabilized in all the organic EL elements 1A. The power supply to the first electrode 丨. FIG. 3 is an explanatory view showing another form of the organic EL panel 1. In the example, the area of the laminated portion 15 is different for each of the plurality of first electrodes 11 formed along the wiring 14. In the illustrated example, the area of the laminated portion 丨5 flows from the current supply unit to the power supply unit of the wiring 14. The area of the first electrode 11 (114) whose distance is 20 is larger than the area of the first electrode ι (11_2) which is closer to the distance from the power supply unit 20. Here, in order to change the area of the laminated portion 15 (LI, L2), the width of the narrow portion ΠΑ is made constant in any of the first electrodes nQi-1 and 11-2). Thereby, even if the area of the laminated portion 15 is changed, the breaking performance of the narrow portion 11A is not affected. In this manner, the area of the laminated portion μ is set to be larger in the first electrode ιι (ι) from the feeding portion 20 than in the first electrode ii(u _2) which is closer to the distance from the feeding portion 20. The area ' can be offset by the difference in area of the laminated portion 15 by the voltage drop from the resistance of the wiring 14 158558.doc 201222807, and it is possible to eliminate the generation of the organic EL element on the side close to the power supply portion 2G and away from the side of the power supply portion 20 The problem of uneven brightness of 1A is obtained, and uniform brightness is obtained in the entire organic EL panel 1. As described above, in the passive matrix driving method of the organic EL panel of the embodiment of the present invention, even when a short circuit occurs between the cathode and the anode of the organic EL element, the short-circuited portion can be quickly disconnected from the wiring 14. The organic EL element 1A prevents the influence of a short circuit from spreading over other organic group elements 1A. Therefore, in the plurality of organic EL elements ία, the dot-like defects caused by the light emission failure of the specific organic EL element 1A having the short-circuited portion are generated, but the abnormal light emission (dark line or the line which affects the entire organic EL panel 1) can be generated. Bright line) to prevent it before it happens. In addition, even in the case of a driving method in which a reverse bias is stably applied between the anode and the cathode of the short circuit, since a large current (leakage current) can be stably flowed through the short-circuited portion in a short time, it does not occur because of the large The heat generation of the current causes a loss of heat of the surrounding organic EL element 1A and causes a problem such as an increase in the range of the light emission defect. In addition, the voltage applied to the organic EL element 1A far from the power supply unit 20 becomes lower than the voltage of the organic EL element close to the power supply unit 20 by the voltage drop in accordance with the electric resistance of the wiring 14, and the above-mentioned The area of the laminated portion 15 is uniform in brightness throughout the organic EL panel. Hereinafter, a configuration example of an organic EL panel according to an embodiment of the present invention will be further specifically described with reference to Fig. 1 . The substrate 10 is formed of a base material capable of supporting the organic EL element 1A, such as glass, plastic, or a metal having an insulating material layer formed on its surface. Forming the first electrode 158558.doc •10-201222807 11 The transparent conductive film layer can be made of IT0 (Indium Tin Qxide), IZO (Indium Zinc Oxide), oxidized transparent conductive film, Sn〇2 transparent conductive film, and titanium dioxide. A transparent metal oxide such as a transparent conductive film may be used, and the wiring 14 may be a low-resistance metal such as silver (Ag) or a silver alloy, aluminum (A1) or an alloy. The pattern of the first electrode 11 or the wiring 14 on the substrate 10 can be formed by sputtering or vapor deposition, and then by a photolithography process or the like. The insulating film 16 is provided to ensure the insulating properties of the patterned first electrode 11 and the wiring 1*. The polyimine resin, the acryl resin, the oxidized stone, and the nitride nitride material are used. After the formation of the insulating film 16 is formed on the substrate 10 on which the first electrode 11 and the wiring 14 are formed, a pattern in which an opening of the light-emitting portion 100 is formed on the first electrode is formed. Specifically, a film having a predetermined coating thickness is formed on the substrate 1 on which the first electrode 11 and the wiring 14 are formed by a spin coating method, and an exposure process and a development process are performed by an exposure mask to form a light-emitting portion. A layer of the insulating film 16 of an opening pattern shape of 100. The insulating film 16 is formed so as to cover the wiring 14 and to fill the pattern of the second electrode u and partially cover the side end portions thereof, and is formed in a lattice shape. Thereby, the light-emitting portion 100 is opened to the first electrode 11, and the region thereof is partitioned by the insulating film 16. Since the partition wall (not shown) forms the pattern of the second electrode 13 without using a mask or the like, or completely electrically insulates the adjacent second electrode 13, it is formed in a stripe shape in the direction of the parent line of the wiring 14. Specifically, an insulating material such as a photosensitive resin is applied to the insulating film 16 by a film thickness thicker than the sum of the film thicknesses of the organic layer 12 and the second electrode 13 forming the organic EL element 1A by a spin coating method or the like. After that, the photosensitive resin film is irradiated with ultraviolet light or the like through a photomask having a stripe pattern intersecting with the electrode 158558.doc 201222807 1 electrode, and the development speed due to the difference in the exposure amount in the thickness direction of the layer is utilized. Poor, forming a partition wall having a tapered side with a side down. The organic layer 12 has a laminated structure including a light-emitting function layer of the light-emitting layer 12 A. When one of the first electrode 11 and the second electrode 13 is an anode and the other is a cathode, the organic layer 12 is selectively and sequentially selected from the anode side. A hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, an electron injection layer, and the like are formed. The film formation of the organic layer 12 is carried out by dry deposition using a vacuum deposition method or the like, and is applied as a wet film by coating or various printing methods. An example of formation of the organic layer 12 will be described below. For example, first, as a hole transport layer, NPB (N, N-di (naphtalence)-N, N-diPheneyl-benzidene) is formed. The power transmission layer has a function of transferring holes injected from the anode to the light-emitting layer. The hole transport layer may be a layer of only one layer or a layer of two or more layers. In addition, the hole transport layer does not need to be formed by a single material, and a plurality of layers can be formed by a plurality of materials, and a host having a higher charge supply (accommodation) can be doped on the host material having a higher charge transport capability. material. Next, a light-emitting layer is formed on the hole transport layer. As an example, a red (r), green (6), and blue (8) light-emitting layer is formed in each film formation region by a resistive heating vapor deposition method using a mask for dispensing. As the red (8), a styrene coloring matter such as DCM (4-(dicyanomethylidene) 2 methyl-6-(4,-dimethylaminophenylvinyl)-4H-pyran) was used. As a thing. 〆 Pigment is an organic material that emits red light: the right IS Lindsay complex ~ etc. emits green light organic material. As blue (8), one-inch Tianran, which emits blue light using diphenylethene derivatives, tri-saliva derivatives, etc., can be made of other materials 158558.doc 201222807, which can be a layer structure of the host-guest type, and the light-emitting form is also A fluorescent luminescent material or a phosphorescent luminescent material may be used. The electron transport layer formed on the light-emitting layer is formed by various film forming methods such as resistance heating deposition, using various materials such as an aluminum quinoline complex (Alq3). The electron transport layer has a function of transporting electrons injected from the cathode to the light-emitting layer. The electron transport layer may be a laminate of only two layers or a multilayer structure of two or more layers. Further, the electron transport layer may be formed by a single material, and a plurality of materials may be used to form a layer. The host material having a higher charge transport capability is formed by doping a guest material having a higher charge supply (accommodation). When the second electrode 13' formed on the organic layer 12 is a cathode, the material b is smaller than the anode (for example, 4 eV or less) (metal, metal oxide, metal fluoride, alloy, etc.). Specifically, a metal film such as aluminum (A1), indium (in), or magnesium (Mg); an amorphous semiconductor such as doped polyaniline or doped polyphenylene ethylene; Cr2〇3, can be used. Niobium, and other oxides. As the structure, a single layer structure based on a metal material, a laminated structure such as LiOyAl, or the like can be used. The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the invention is not limited by the scope of the invention, and the invention is included in the invention. In the embodiments which are not shown in the above figures, the contents of each other can be combined as long as the purpose and the contradiction or problem of the knot are obtained. Further, the description may be implemented as separate embodiments, and the embodiments of the present invention are not limited to the embodiments in which the figures are combined. 158558.doc -13-201222807 [Description of the drawings] FIG. 1(b) is an explanatory view showing the structure of the structure of the organic EL panel of the embodiment, and FIG. 1 is an explanatory view of the present invention. (a) is a plan view showing a plan view of an organic EL panel according to an embodiment of the present invention; and FIG. 3 is an organic view showing an embodiment of the present invention; An illustration of another way of el panel. [Description of main component symbols] 1 Organic EL panel 1A Organic EL device 10 Substrate 11 First electrode 11-1 First electrode 11-2 First electrode 11A Narrow portion 12 Organic layer 12A Light-emitting layer 13 Second electrode 14 Wiring 14A Portion 15 Laminated portion 16 Insulating film 20 Power supply unit 158558.doc 201222807 100 Light-emitting portion L Length L Length L2 Length P Short-circuit portion W1 Width W2 Width 158558.doc