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TWI283141B - Organic electroluminescent display apparatus with multi-taper electrode isolation layer and manufacturing method thereof - Google Patents

Organic electroluminescent display apparatus with multi-taper electrode isolation layer and manufacturing method thereof Download PDF

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Publication number
TWI283141B
TWI283141B TW94107496A TW94107496A TWI283141B TW I283141 B TWI283141 B TW I283141B TW 94107496 A TW94107496 A TW 94107496A TW 94107496 A TW94107496 A TW 94107496A TW I283141 B TWI283141 B TW I283141B
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Taiwan
Prior art keywords
layer
electrode
inverted
isolation
organic electroluminescent
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Application number
TW94107496A
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Chinese (zh)
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TW200633570A (en
Inventor
Wen-Jang Lan
Chien-Yuan Feng
Yuan-Chang Tseng
Chien-Chih Chiang
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Univision Technology Inc
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Priority to TW94107496A priority Critical patent/TWI283141B/en
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Publication of TWI283141B publication Critical patent/TWI283141B/en

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Abstract

An organic electroluminescent display apparatus with multi-taper electrode isolation layer and a manufacture method thereof are disclosed. The organic electroluminescent display apparatus includes a glass substrate, a first electrode layer disposed on the glass substrate, a pixel definition layer disposed at intervals on the first electrode layer, an electrode isolation layer with multi-taper structure formed on the pixel definition layer, an organic electroluminescent layer disposed on the first electrode layer, and at least one second electrode layer disposed on the organic electroluminescent layer. The pixel definition layer defines pixels and provides an isolation of the organic electroluminescent layer. The electrode isolation layer comprises many embodiments with the multi-taper structure such as stacked multi-taper part or multi-taper part with isolation groove placed mutually at intervals.

Description

1283141 九、發明說明: 【發明所屬之技術領域】 可加==關於—種有機電激發光裝置,尤其是-種 光裝i與阻隔結構上之金屬層間之絕緣的有機電激發 【先前技術】 陽極=電激發光元件之作動原理係將有機薄膜包夾於陰 機層相i社^過電流使電子、電洞兩载子(随加)在有 之二槿σ再放出光線。一般簡單的有機電激發光元件 『構&先於塑膠,域克力樹脂(Acryiic)、環氧樹脂 聚石山 、聚酿樹脂(p〇iyethyiene ter印hthiate_pET)、 广二对月曰(P〇lycarb〇nate_pc)等、或玻璃基板之表面 帝〜層透明1T0 (indi.tin 0xide,銦錫氧化膜)導 二=極作為陽極,再於該透明IT〇導電電極上鍍形成之阻 :7,(rampart)來定義畫素圖樣及其至少形成之一層電 有:雄層、至少一層依該圖樣佈設之有機構造、以及於該 八機構造上鍍製之具低功能函數(low work function)之 二電電極作為陰極;其中,該有機構造可依序包括: 餐助笔,同傳輸之電洞傳輸層(hole transport layer, )於或電洞傳輸層上形成之有機發光層吨 iayer,EL)、以及可幫助電子傳輸且於該有機發光層上形 成之電子傳輸層(electron transport layer,ETL);此 外’該電極隔離層係為一種上寬下窄、具有逆斜度之倒梯 $結構體(taper structure)的結構,其材質為絕緣材, 用以分離其在後續蒸鍍有機構造與該陰極時,產生遮蔽之1283141 IX. Description of the invention: [Technical field to which the invention pertains] Addable == related to an organic electroluminescent device, in particular, an organic electrical excitation of the insulation between the optical device i and the metal layer on the barrier structure [Prior Art] The anode = the principle of the action of the electro-excitation element is to sandwich the organic film in the negative phase of the cathode layer, so that the electrons and the hole two carriers (with the addition) emit light in the second σ. Generally simple organic electroluminescent elements "construction & prior to plastic, Acryiic, epoxy polystone, poly-resin (p〇iyethyiene ter-hthiate_pET), Guang Er to Lunar (P〇 Lycarb〇nate_pc), etc., or the surface of the glass substrate, the transparent layer 1T0 (indi.tin 0xide, indium tin oxide film) is used as the anode, and then formed on the transparent IT〇 conductive electrode: 7, (rampart) to define a pixel pattern and at least one layer of electricity: a male layer, at least one organic structure arranged according to the pattern, and a low work function plated on the eight-machine structure The second electrode serves as a cathode; wherein the organic structure may include: a meal assisting pen, an organic light emitting layer formed on the hole transport layer or the hole transport layer, iayer, EL) And an electron transport layer (ETL) capable of facilitating electron transport and formed on the organic light-emitting layer; furthermore, the electrode isolation layer is an inverted-structured structure having an upper width and a lower width and having a reverse slope (taper stru The structure of the cture) is made of an insulating material for separating it from the subsequent vapor deposition of the organic structure and the cathode.

Claims (1)

1283141 申請專利範圍: 置 1、一種具多倒梯形之電極隔離層 ,係包含: 之有機電激發光裝 玻璃基板; 第一電極層 畫素定義層 電極隔離層 有機發光層 係佈設於該玻璃基板上; 係互相間隔佈設於該第—電極層上; 係設置於該晝素定義層之上· 、^ 係佈設於該第一電極層之上;以及 第二電極層,係設置於該有機發光層之上; 及定義以晝義層係作為該有機發光層之隔絕以 括疊:::::數=隔離層卿倒一 2、如申請專利範圍第工項之有機 至少上下疊層設置之兩倒I、 〇申明專利範圍第2項之有機電激笋光妒罟豆 上==梯料具有㈣尺寸;綠下倒梯料大於該 其包括至少—呈疊二:::設置之糊梯部’ 梯部之上之兩上倒:邛、以及佈設於該下倒 有預定深度之隔絕槽σ肖梯部係互相間隔有一具 中該:上圍第4項之有機電激發光裝置,其 絕面係具有—預定ϋ有互相面對且對稱之隔絕面,該隔 95.1L2 4 1283141 中兮請專利範圍第5項之有機電激發光裝置,其 :面,為:,跑為具有銳角之逆斜度, 中兮Γ ^請專利範圍第1項之有機電激發光裝置,款 ^亥弟-$極層係選擇性地作為陰極與陽極,則略 ° S係相對於该第―電極層而選擇性地作為陽極與陰極。 8、如中料·項之錢電激發 部 隔離層進—步包括互相間隔有隔絕槽之複數倒梯 置之形之電極隔離層之有機電激發光聚 置備一玻璃基板; 佈5又第一電極層於該玻璃基板上; 於該第=!數;:間隔之晝素定義層與電極隔離層 之預定圖案微;上:;中,每一電極隔離層係依照 倒梯部,該預定圖:』’俾令母一電極隔離層形成複 、Λ了具疋Μ案包括至少一窗口; 成形有機發光層於該第一電極層上; 沉積至少一株- 、 工〇、 昂—電極層於該有機發光層之上。 製作方法,利範11第9項之有機電激發光翁置 微影餘刻2:!複數倒梯部之步驟係進一步包括 離層、俾使每iJ:—窗口之該預定圖案於每-電極 重福_ 離層成形有下倒梯部;以及 形成上倒梯部!^刻製程,進—步於該下倒梯部上遣一 16 • 1283141 之制1、如申請專利範圍第1 o項之有搪干 之表作方法,其中該上倒梯部之上有钱電激發光裝置 倒梯部之上表面。 "面係等於或小於該下 y、”請專利範圍第g 衣作方法,其令形成該複數倒梯部之^破發光裝置之 微影具有複數窗口之該預 安Λ系進—步包括: 層;以及 、Θ木於每一電極隔離 蝕刻每—電極隔離層,使之妒士曰 倒梯部。 ^成具有非連續之複數 13 如申凊專利範圍第1 9 4 之製作方法,其中形成該複數倒梯部員之之牛1機電激發光裝置 部兩兩相間有-具預定深度進—步包括: 邛,俾使該複數倒梯部呈非連續狀態。4該複數倒梯 14、如申請專利範 之製=法:其中該隔絕槽係呈正梯=:激發光裝置 裝置之製作方形之電極隔離層之有機電激發光 置備一玻璃基板; 佈設第—電極層於該玻璃基板上; 依序成長複數互相間隔之蚩莫 於該第一電極層上;其中,每疋義層與電極隔離層 之預定圖案進行微影,俾令每離層係依照-對應 部,該預定圖案係包括至少一窗=隔離層形成複數倒梯 成形有機發光層於該第1㈣上. _至少於讀有贿光層之上; 17 1283141 车B曰修(更)正替换頁; 其中’該金屬導電層呈非連續性覆蓋於該電極隔離層。 ^ 6、、如申請專利範圍帛1 5項之有機電激發光事 之衣作方法’其巾形成該複數倒梯部之步麟進—步包括· 曝光與顯影具有單一窗口之該預定圖案於每一命· 隔離層’俾使每—電極隔離層顯像出下倒梯部;以及蛋 上倒梯Ϊ複微影製程,進—步於該下倒梯部上進—步形成 之專利範圍第16項之有機電激發光裝置 倒梯部之上表面中該上倒梯部之上表面係等於或小於該下 之製作方法, -====;於二極 之製=法如專㈣18項之#機電激發光裳置 一中形成该複數倒梯部之步驟係進一I勺 部,俾=4—該:梯 181283141 Patent application scope: 1. An electrode isolation layer having an inverted inverted trapezoid includes: an organic electroluminescent light-emitting glass substrate; a first electrode layer pixel defining layer electrode isolation layer organic light emitting layer is disposed on the glass substrate The upper electrode layer is disposed on the first electrode layer; the system is disposed on the first electrode layer; and the second electrode layer is disposed on the organic light emitting layer Above the layer; and defining the isolation layer as the isolation of the organic light-emitting layer to include: :::: number = isolation layer, and the organic layer of the application of the patent scope is at least stacked Two inverted I, 〇 〇 专利 专利 专利 专利 专利 专利 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 = = = = = = = = = = = = = = = = = = = = = = = = The two parts above the ladder are: 邛, and the isolation groove σ arranged at the predetermined depth is arranged to be spaced apart from each other: the organic electroluminescent device of the fourth item of the upper circumference, The fascinating system has a predetermined And the symmetrical insulating surface, the organic electroluminescent device according to the fifth item of the patent scope of the 95.1L2 4 1283141, the surface: is:, runs as a reverse angle with an acute angle, the middle 兮Γ ^ please patent range In the organic electroluminescence device of the first aspect, the system is selectively used as the cathode and the anode, and the S system is selectively used as the anode and the cathode with respect to the first electrode layer. 8. If the middle layer of the material is electrically excited, the isolation layer comprises a plurality of organic electroluminescent light for the electrode isolation layer separated from each other by a plurality of inverted ladders, and a glass substrate is prepared; The electrode layer is on the glass substrate; at the first =! number; the predetermined pattern of the pixel definition layer and the electrode isolation layer are separated; in the upper layer; each electrode isolation layer is in accordance with the inverted step, the predetermined pattern : 』 '俾令-electrode isolation layer is formed, and the method includes at least one window; forming an organic light-emitting layer on the first electrode layer; depositing at least one - - Above the organic light-emitting layer. The manufacturing method, the organic electro-excitation of the eleventh item of the ninth item, the lithography 2:! The step of the complex stepping step further includes the separation layer, the 俾 so that each iJ: the predetermined pattern of the window is per-electrode weight福 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ There is a method of drying the surface, wherein the upper part of the stepped ladder has a surface for the upper surface of the stepped portion of the light-emitting device. "Face is equal to or less than the lower y," the patent scope of the g-coating method, the lithography of the broken light-emitting device forming the plurality of inverted steps has a plurality of windows, the pre-amplification step includes : a layer; and a coffin is etched at each electrode to etch each of the electrode isolation layers so that the gentleman collapses the ladder portion. ^ is formed into a non-continuous plural number 13 as claimed in the patent scope of the invention, wherein The plurality of electromechanical excitation device units forming the plurality of step ladder members have a predetermined depth between the two phases. The method includes: 邛, causing the plurality of inverted ladder portions to be in a discontinuous state. 4 the plurality of inverted ladders 14 Patent application method = method: wherein the isolation trench is in the form of a ladder =: the organic electroluminescent light of the electrode isolation layer of the excitation light device device is provided with a glass substrate; the first electrode layer is disposed on the glass substrate; The growth complex is spaced apart from each other by the first electrode layer; wherein each of the germane layer and the electrode isolation layer are lithographically patterned, and each of the separation layers includes at least one of the predetermined patterns according to the corresponding portion Window = The isolation layer forms a plurality of inverted ladder-shaped organic light-emitting layers on the first (fourth). _ at least on the reading brittle layer; 17 1283141 car B repair (more) is replacing the page; wherein 'the metal conductive layer is discontinuous Covering the electrode isolation layer. ^ 6. The method for making an organic electro-excited light according to the patent application 帛15, the step of forming the plurality of inverted steps, including the exposure and development The predetermined pattern of the single window is used in each of the life-insulation layers to cause each of the electrode isolation layers to be imaged to the lower step; and the egg is placed on the inverted lithography process, and the step is stepped on the lower step The surface of the upper surface of the inverted step of the organic electroluminescent device of the 16th item of the patented process is equal to or smaller than the manufacturing method of the lower step, -====; The system = the law such as the special (four) 18 items # electromechanical excitation light skirt set one of the steps to form the complex step down into the I scoop, 俾 = 4 - the: ladder 18
TW94107496A 2005-03-11 2005-03-11 Organic electroluminescent display apparatus with multi-taper electrode isolation layer and manufacturing method thereof TWI283141B (en)

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TWI283141B true TWI283141B (en) 2007-06-21

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