TWI245579B - Organic light-emitting device and fabrication method thereof - Google Patents

Organic light-emitting device and fabrication method thereof Download PDF

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TWI245579B
TWI245579B TW092126253A TW92126253A TWI245579B TW I245579 B TWI245579 B TW I245579B TW 092126253 A TW092126253 A TW 092126253A TW 92126253 A TW92126253 A TW 92126253A TW I245579 B TWI245579 B TW I245579B
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layer
upper side
host material
material layer
guest
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TW200407049A (en
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Guan-Jang Peng
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Guan-Jang Peng
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/18—Carrier blocking layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/18—Carrier blocking layers
    • H10K50/181—Electron blocking layers

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  • Electroluminescent Light Sources (AREA)

Abstract

The present invention relates to a light-emitting device, and especially relates to an organic light-emitting device with three wavelengths having white-light characteristics. The device comprises a hole transport layer, an electron blocking layer, a first host layer, a second host layer, a third host layer, a hole blocking layer and an electron transport layer between the anode and cathode sequentially. The first host layer has a first guest material mixed inside, which can project the first color light (R) under the external bias voltage. The second host layer has a second guest material mixed inside, which can project the second color light (B) relatively. The third host layer has a third guest material mixed inside, which can project the second color light (G) relatively. Therefore, by using the combination of three primaries (red, blue, green), a continuous full-band, full-color light source having three-wavelength characteristics can be obtained directly.

Description

1245579 五、發明說明（1) 【發明所屬之技術領域】 ^本發明係有關於一種發光裝置，尤指一種具有三波長 發白光特性之有機電激發光裝置及其製作方法。 、 【先前技術】 •有機電激發光裝置（Organic Light Emitting Device 〇LED)自；kl987 年由柯達公司的c.W.Tang 及 S.A.VanSlyk e利用真空蒸鍍方式，將電洞傳輸材料及電子傳輸材料， 如Alq3，分別鍍覆於透明之IT〇玻璃上，其後再蒸鍍一金 屬電極形成具有自發光性、高應答速度、重量輕了 ^度薄 、低耗電、廣視角、高亮度及可全彩化的有機電激發=元 件元件（0LED)。此後，有機電激發光元件被視為是顯示器 產業之明星產品，大家莫不希望其可早日運用於全彩化& 不器或投射出白色光源，以達到真正可兼具綠色 電功效之照明理想境界。 ^請參閱第1圖，係為習用0LED之構造剖視圖，此構造 係揭露於1 988年美國專利第4, 769, 292號，由美國柯達公1245579 V. Description of the invention (1) [Technical field to which the invention belongs] ^ The present invention relates to a light-emitting device, and more particularly to an organic electro-optical light-emitting device with three-wavelength white light emission characteristics and a method for manufacturing the same. [Previous technology] • Organic Light Emitting Device (LED); since kl987, cWTang and SAVanSlyke of Kodak Company used vacuum evaporation method to transfer hole materials and electron transmission materials, such as Alq3 is separately plated on transparent IT〇 glass, and then a metal electrode is evaporated to form a self-luminous, high response speed, light weight, thin, low power consumption, wide viewing angle, high brightness and full Colored organic electrical excitation = element element (0LED). Since then, organic electroluminescent devices have been regarded as the star products of the display industry. Everyone hopes that they can be used for full-color & no use or projection of white light sources in order to achieve the lighting ideal that can have both green electrical effects. realm. ^ Please refer to FIG. 1, which is a cross-sectional view of a conventional 0LED structure. This structure is disclosed in US Patent No. 4,769,292 of 1988, published by Kodak Corporation.

司所揭露之「ELECTROLUMINESCENT DEVICE With M0DIFIE D THIN FILM LUMINESCENT ZONE」專利中；該有機電激發 光裝置（OLED) 1 0主要係在一透光基板丨丨上蒸鍍形成一透^ 可導電性之陽極（IT0)13，並於該IT0陽極13上再依序形成 一電洞傳輸層（HTL)15、發光層（EML)17及一金屬陰極^， 另外於發光層17内摻雜（Doping) —螢光物質（未顯示），當 陽極1 3及陰極1 9受到外加偏壓作用時，電洞將可自丨τ〇陽In the patent of "ELECTROLUMINESCENT DEVICE With M0DIFIE D THIN FILM LUMINESCENT ZONE" disclosed by the company; the organic electroluminescent device (OLED) 1 0 is mainly deposited on a transparent substrate 丨 丨 to form a transparent conductive anode (IT0) 13, and a hole transport layer (HTL) 15, a light emitting layer (EML) 17, and a metal cathode ^ are sequentially formed on the IT0 anode13, and the light emitting layer 17 is doped— Fluorescent substances (not shown). When the anode 13 and cathode 19 are subjected to an external bias, the holes can be turned from

1245579 五、發明說明（4) 但，由於三原辛 ，畫素精細度之要卡★獨立各自發光，其色彩平衡性較差 色彩之有機物質猶☆ ^增加製程之困難度，而且三個不同 難易度亦各有不同，，光，其發光效率、使用壽命及控制 而偏向橘紅色，Α #列如紅色光源就難以達到純紅的境界 具使用壽命相對亦短。 【發明内容】 因此，如何斜斜 問題及缺«出1^習用#機電激發光裝置所發生之 式以達到最佳之全來#览、方法，可藉由三波長投射光源方 終極目標。爰是/先/原分佈，且輕易完成白光或全彩之 本發明之主要曰, ,i ^ . τ Ο，在於提供一種有機電激發光裝置 佈射方式以取得最佳之光色均勻分 勿運引白先或全彩之終極產品要求。 ，可右ίΖΐί要目的’在於提供-種有機電激發光裝置 '、久以來製作白色光源或全彩產品之弊端者 〇 本發明之又一目的，Α 1 Μ丄 Ί 在於k供一種有機電激發光裝置 ’可措由主體材料層盘玄恭忠 t S /、各發先體物質之搭配使用，以有效 提咼毛光效率及使用壽命者。 為達上述目的，因此在 要構造至少係包括有：一具 ;一設於第一導電層上側之 一第一客發光體物質，可於 本發明一較佳實施例中，其主 有第一型導電性之第一導電層 第一主體材料層，内混雜設有 一外加偏壓作用下投射出一第1245579 V. Description of the invention (4) However, due to Mihara Shin, the key to the fineness of the pixels ★ Independent light emission, poor color balance and organic matter with poor colors ☆ ^ Increased difficulty of the process, and three different difficulties They are also different. Light, its luminous efficiency, service life, and control are biased toward orange-red. A # column such as a red light source is difficult to reach the realm of pure red, and its service life is relatively short. [Summary of the Invention] Therefore, how to oblique the problem and lack of «出 1 ^ 习 用 # electromechanical excitation light device occurs in order to achieve the best all-in-one # overview, methods, three-wavelength projection light source can be the ultimate goal.爰 is / first / original distribution, and can easily complete the white or full color of the present invention. The main meaning of the present invention is, i ^. Τ Ο, which is to provide an organic electrical excitation light device distribution method to achieve the best uniform light and color distribution. Quote the ultimate product requirements of Baixian or Full Color. However, the main purpose of the present invention is to provide a kind of organic electro-excitation light device and disadvantages of making white light sources or full-color products for a long time. Another object of the present invention is to provide an organic electro-excitation. The light device can be used in combination with the main material layer Xuan Gongzhong t S /, and the precursor materials to effectively improve hair efficiency and service life. In order to achieve the above purpose, at least the structure includes: one; a first guest luminous substance provided on the upper side of the first conductive layer, which can be used in a preferred embodiment of the present invention. Type conductive first conductive layer and first main body material layer, which are mixed with an external bias to project a first

1245579 五、發明說明（5) 一色光源；一設於第一主體 ，内混雜設有一第二客發光 投射出一弟"一色光源，一^設 主體材料層，内混雜設有一 偏壓作用下投射出一第三色 之第二導電層，設於第三主 材料層上側之第二主體材料層 體物質，可於夕卜加偏壓作用下 於第二主體材料層上侧之第三 第三客發光體物質，可於外: 光源；及一具有第二型導電性 體材料層之上侧。 【實施方式】 茲為使貴審查委員對本發明之結構特徵及所達成之 功效有更進一步之瞭解與認識，謹佐以較佳之實施例圖及 配合詳細之說明，說明如后： 首先，請參閱第3圖，係為本發明一較佳實施例之構 造截面圖；如圖所示，本發明有機電激發光裝置3〇主要係 在一透光基板31之上側以蒸鍍或濺鍍等方式以形成一第一' 導電層33 (如陽極），而在陽極33之上側再依序形成一電 洞傳輸層35 (HTL ;第一載子傳輸層）及一具有阻隔第二載 子（電子）前進之電子阻隔層47 (electr〇n M〇cking laye r)，電子阻隔層47之上側再依序形成有一第一主體材料層 41 (H〇St υ、第二主體材料層42 (Host 2)及第三主體材 料層43 (Host 3 )，且於第三主體材料層43之上側依序形 成有一可阻隔電洞前進之電洞阻隔層45 (hole blocking layer)、電子傳輸層37 (ETL ;第二載子傳輸層）及陰極39 藉由電子阻隔層47，可將來自於陰極3 9之電子阻隔於 12455791245579 V. Description of the invention (5) One-color light source; one set on the first body, a second guest light emitting projected on the inside, a one-color light source, a main material layer, and an inner bias provided with a bias A second conductive layer of a third color is projected, and the second host material layer body material disposed on the upper side of the third main material layer can be applied to the third host material layer on the upper side of the second main material layer under a bias. The three-object luminous material can be outside: a light source; and an upper side having a second-type conductive material layer. [Embodiment] In order for your review committee to have a better understanding and understanding of the structural features and achieved effects of the present invention, I would like to refer to the preferred embodiment diagrams and detailed descriptions as follows: First, please refer to FIG. 3 is a structural cross-sectional view of a preferred embodiment of the present invention; as shown in the figure, the organic electroluminescent device 30 of the present invention is mainly formed on a transparent substrate 31 by evaporation or sputtering To form a first conductive layer 33 (such as an anode), a hole transporting layer 35 (HTL; first carrier transporting layer) and a second carrier (electron blocking) ) Advancing electron blocking layer 47 (electron 〇cking laye r), a first host material layer 41 (HoSt υ, second host material layer 42 (Host 2 ) And a third host material layer 43 (Host 3), and a hole blocking layer 45 (electron transport layer 37) (ETL) that can block the advance of the holes is formed in order on the upper side of the third host material layer 43 ; Second carrier transport layer) and cathode 39 by electronic resistance Layer 47 may be from the cathode electron barrier 39 to 1,245,579

G u e s t 2的/辰度也要相對為高，且，在η 〇 s ^ 3之電子電洞 對數里也可没计為相對於H〇Sf 1及jjost 2為大，而Host 1 Η0 s t 2及Η 〇 s t 3之位置安排全有賴於其能階之相對养 配。 ° 再者，請參閱第4圖，係為本發明又一實施例之構造 截面圖；如圖所示，在此實施例中，其主要係在一可由玻 璃、石英或塑膠製成之透光基板31上以蒸鍍或濺鍍等方式 形成一可由銦錫氧化物（IT0)、聚苯胺（PANI)、氧化鋅（ ΖηΟχ)、氧化錮（Μ〇〇χ)、氧化釩（ν〇χ)、氧化釕（Ru〇x)、Au Cul、Sn02或ZnO等具透光導電性功效之金屬、合金、化 合，或混合物所構成之陽極33。接續，IT〇 33之上表面再 依續形成一可由M-MTDATA所構成之電洞注入層（HIL)53、 由NPB所構成之電洞傳輸層（htl)35、由LiF所構成之電子 阻隔層47、由NPB所構成之第一主體材料層41、由DPVBi所 構成之第一主體材料層4 2、由A1 q 3所構成之第三主體材料 層43、由BCP所構成之電洞阻隔層45、由Alq所構成之電子 傳輸層（ETL)37、由LiF所構成之電子注入層（EIL) 57、及 一可由Au、A1、Mg、Pt、Ag、MgAg、AlLi、AlLiO、AlLiF 或Ca等具導電性材質所構成之陰極39。 其中’第一主體材料層41之NPB中混雜設有至少一可 投射出紅光之DCM2物質，第二主體材料層42之DPVBi中混 雜設有至少一可投射出藍光之DSA物質，而第三主體材料 層43之A lq3中混雜設有至少一可投射出綠光之C6物質，藉 由上述各主體材料層（Η 〇 s t s )之能階位置安排，致使因為 I ί S 1 S I I 1 1 I 1 1 _ 1245579 圖式簡單說明 第1圖：係習用有機電激發光裝置之構造剖視圖； 第2圖：係另一種習用有機電激發光裝置之各元件能階示 意圖， 第3圖：係本發明有機電激發光裝置之一較佳實施例之構 造截面圖；及 第4圖··係本發明又一實施例之構造截面圖。The degree of / centre of G uest 2 should also be relatively high, and the electron hole logarithm of η 〇s ^ 3 can also not be counted as large relative to H 0Sf 1 and jjost 2, and Host 1 Η0 st 2 And the position arrangement of Η 〇st 3 all depends on the relative support of its energy level. ° Furthermore, please refer to FIG. 4, which is a structural cross-sectional view of another embodiment of the present invention. As shown in the figure, in this embodiment, it is mainly a light-transmitting material that can be made of glass, quartz, or plastic. A substrate 31 can be formed by evaporation or sputtering, such as indium tin oxide (IT0), polyaniline (PANI), zinc oxide (ZηΟχ), hafnium oxide (MIMO), and vanadium oxide (ν〇χ). , Anode 33 composed of a metal, alloy, compound, or mixture with light-transmitting conductivity, such as ruthenium oxide (Ru0x), Au Cul, Sn02, or ZnO. Subsequently, a hole injection layer (HIL) 53 made of M-MTDATA, a hole transmission layer (htl) 35 made of NPB, and an electron barrier made of LiF were successively formed on the upper surface of IT03. Layer 47, first host material layer 41 made of NPB, first host material layer 4 made of DPVBi 4, third host material layer 43 made of A1 q 3, hole barrier made of BCP Layer 45, an electron transport layer (ETL) 37 made of Alq, an electron injection layer (EIL) 57 made of LiF, and a layer made of Au, A1, Mg, Pt, Ag, MgAg, AlLi, AlLiO, AlLiF or A cathode 39 made of a conductive material such as Ca. Among them, at least one DCM2 substance capable of projecting red light is mixed in the NPB of the first main material layer 41, and at least one DSA substance capable of projecting blue light is mixed in the DPVBi of the second main material layer 42, and the third A lq3 of the host material layer 43 is mixed with at least one C6 substance capable of projecting green light. By the arrangement of the energy level positions of the above host material layers (st 〇sts), it is because I S 1 SII 1 1 I 1 1 _ 1245579 Brief description of the drawings. Figure 1: is a sectional view of the structure of a conventional organic electroluminescent device; Figure 2: is a schematic diagram of the energy levels of components of another conventional organic electroluminescent device; Figure 3: the present invention A structural cross-sectional view of a preferred embodiment of an organic electroluminescent device; and FIG. 4 is a structural cross-sectional view of another embodiment of the present invention.

第14頁Page 14

Claims (1)

1245579 六、申請專利範® 工.一種有機電激發光裝置，其主要構造至小 一具有第二型導電性之第一導電層；乂係匕括有. 一設於該第—導電層上側之第一主 設有-第-客發光體物質，可於體：U混雜 投射出一第—色光源，· 外加偏m作用下 一設於該第一主體材料層上側之第二主體材料層，内 混雜設有一第二客發光體物質，可於該外加偏壓作 用下投射出一第二色光源； 一設於該第二主體材料層上側之第三主體材料層，内 混雜設有一第三客發光體物質，可於該外加偏壓作 用下投射出一第三色光源；及 一具有第二型導電性之第二導電層，設於該第三主體 材料層之上側。 2 一種有機電激發光裝置’其主要構造至少係包括有： 一具有第一塑導電性之第一導電層； 一設於該第一導電層上側之第二載子阻隔層； 一設於該第二載子阻隔層上侧之第一主體材料層，内 混雜設有一第一客發光體物質，可於一外加偏壓作 用下投射出一第一色光源； 一設於該第一主體材料層上側之第二主體材料層，内 混雜設有一第二客發光體物質，可於該外加偏壓作 用下投射出一第一色光源； 一設於該第二主體材料層上側之第三主體材料層，内 混雜設有一第二客發光體物質，可於該外加偏壓作 第15頁 1245579 六、申請專利範圍 * 用下投射出一第三色光源；及 · 一具有第二型導電性之第二導電層，設於該第三主體 材料層之上侧。 3 · —種有機電激發光裝置，其主要構造至少係包括有： 一具有第一型導電性之第一導電層； 一設於該第一導電層上側之第一主體材料層，内混雜 設有一第一客發光體物質，可於一外加偏壓作用下 投射出一第一色光源； 一設於該第一主體材料層上側之第二主體材料層，内 混雜設有一第二客發光體物質，可於該外加偏壓作 _ 用下投射出一第二色光源； 一設於該第二主體材料層上側之第三主體材料層，内 混雜設有一第三客發光體物質，可於該外加偏壓作 用下投射出一第三色光源； 一設於該第三主體材料層上側之第一載子阻隔層；及 … 一具有第二型導電性之第二導電層，設於該第一載子 阻隔層之上側。 4 · 一種有機電激發光裝置，其主要構造至少係包括有·· 一具有第一型導電性之第一導電層； 一設於該第一導電層上側之第二載子阻隔層； _ 一設於該第^一載子阻隔層上側之第一主體材料層，内 混雜設有一第一客發光體物質，可於一外加偏壓作 用下投射出一第一色光源； 一設於該第一主體材料層上侧之第二主體材料層，内 II 1_ 第16頁 12455791245579 VI. Apply for a patent application. An organic electro-optical light device, which is mainly constructed to a small first conductive layer with a second type of conductivity; The first main body is provided with a -th-guest luminous substance, which can project a first-color light source in the body: U, and a second main material layer provided on the upper side of the first main material layer under the action of the bias m, The inner hybrid is provided with a second guest luminous substance, which can project a second color light source under the external bias; a third host material layer is provided on the upper side of the second host material layer, and the inner hybrid is provided with a third The guest luminous material can project a third-color light source under the external bias; and a second conductive layer having a second-type conductivity is disposed on the upper side of the third host material layer. 2 An organic electro-optical light-emitting device whose main structure includes at least: a first conductive layer having a first plastic conductivity; a second carrier blocking layer provided on an upper side of the first conductive layer; A first host material layer on the upper side of the second carrier barrier layer is mixed with a first guest luminous substance, which can project a first color light source under an external bias; a first light source is provided on the first host material. A second host material layer on the upper side of the layer is mixed with a second guest luminous substance, and a first color light source can be projected under the external bias; a third body provided on the upper side of the second host material layer The material layer is mixed with a second guest luminous substance, which can be applied to the bias voltage on page 15 1245579 6. Patent application scope * A third-color light source is projected under use; and a second-type conductivity The second conductive layer is disposed on the upper side of the third host material layer. 3. An organic electro-optical light device, the main structure of which includes at least: a first conductive layer having first-type conductivity; a first main material layer provided on the upper side of the first conductive layer; There is a first guest luminous substance, which can project a first color light source under an external bias; a second host material layer disposed on the upper side of the first host material layer, and a second guest luminous object is mixedly arranged therein. A substance can project a second-color light source under the application of the bias voltage; a third host material layer provided on the upper side of the second host material layer, and a third guest light substance is mixed therein, which can be used in A third color light source is projected under the action of the applied bias; a first carrier blocking layer provided on the upper side of the third host material layer; and ... a second conductive layer having a second type of conductivity provided on the The upper side of the first carrier blocking layer. 4 · An organic electro-optical excitation device, the main structure of which comprises at least a first conductive layer with first-type conductivity; a second carrier barrier layer provided on the upper side of the first conductive layer; _ a A first host material layer provided on the upper side of the first carrier blocking layer is mixed with a first guest luminous substance, which can project a first-color light source under an external bias; A second host material layer on top of a host material layer, inner II 1_ p. 16 1245579 混雜設有一第二客發光體物質，可於該外加偏壓作 用下投射出一第二色光源； 設於該第二主體材料層上側之第三主體材料層，内 混雜設有一第三客發光體物質，可於該外加偏壓作 用下投射出一第三色光源； 一没於该第二主體材料層上側之第一載子阻隔層；及 一具有第二型導電性之第二導電層，設於該第一載子 阻隔層之上側。A second guest luminous substance is mixed, and a second light source can be projected under the external bias; a third host material layer provided on the upper side of the second host material layer, and a third guest light is mixed in A bulk material that can project a third-color light source under the applied bias; a first carrier blocking layer that is not on the upper side of the second host material layer; and a second conductive layer having a second type of conductivity Is disposed on the upper side of the first carrier blocking layer. 5 申睛專利範圍第4項所述之有機電激發光裝置，其中 該第一主體材料層係為一NPB層，而第二主體材料層 6 係為一DPVBi層，第三發光體層則為一 a lq3層。 如申請專利範圍第4項所述之有機電激發光裝置，其 中該第一主體材料層係為一NPB層，而第一客發光體 物質則為一DCM2。 •如申請專利範圍第4項所述之有機電激發光裝置，其 中該第二主體材料層係為一DPVBi層，而第二客發光 體物質則為一DSA。5 The organic electro-optical light-emitting device described in item 4 of the Shenjing patent scope, wherein the first host material layer is an NPB layer, the second host material layer 6 is a DPVBi layer, and the third emitter layer is a a lq3 layer. The organic electroluminescence device described in item 4 of the scope of the patent application, wherein the first host material layer is an NPB layer and the first guest light emitting substance is a DCM2. • The organic electroluminescent device as described in item 4 of the scope of patent application, wherein the second host material layer is a DPVBi layer and the second guest light emitting substance is a DSA. •如申請專利範圍第4項所述之有機電激發光裝置，其 中該第三主體材料層係為一 Alq3層，而第三客發光體 物質則為一C6。 9 如申請專利範圍第4項所述之有機電激發光裝置，其 中該第三客發光體之浪度係大於該一客發光體及第二 客發光體之各別濃度者。 如申請專利範圍第4項所述之有機電激發光裝置’其• The organic electroluminescence device as described in item 4 of the scope of patent application, wherein the third host material layer is an Alq3 layer, and the third guest material is a C6. 9 The organic electroluminescence device as described in item 4 of the scope of the patent application, wherein the wave length of the third guest luminous body is greater than the respective concentrations of the one guest luminous body and the second guest luminous body. The organic electroluminescence device described in item 4 of the scope of patent application ’ 1245579 六、申請專利範圍 中該第一客發光體物質係町選擇螢光物質、磷光物質 及其組合式之其中之一者。 11 ·如申請專利範圍第4項所述之有機電激發光裝置，其 中該第二客發光體物質係可選擇螢光物質、磷光物質 及其組合式之其中之一者。 1 2 ·如申請專利範圍第4項所述之有機電激發光裝置，其 中該第三客發光體物質係可選擇螢光物質、磷光物質 及其組合式之其中之一者。1245579 VI. In the scope of patent application, the first guest substance is one of fluorescent substance, phosphorescent substance and combination thereof. 11. The organic electroluminescent device according to item 4 of the scope of the patent application, wherein the second guest luminous substance is one of a fluorescent substance, a phosphorescent substance, and a combination thereof. 1 2 The organic electroluminescent device according to item 4 of the scope of patent application, wherein the third guest light emitting substance is one of a fluorescent substance, a phosphorescent substance, and a combination thereof. 1 3 · —種有機電激發光裝置，其主要構造至少係包括有： 一具有第一型導電性之第一導電層； 一設於該第一導電層上側之第一載子傳輸層； 一設於该第一載子傳輸層上侧之第二載子阻隔層； 一设於該第二載子阻隔層上侧之第一主體材料層，内 混雜設有一第一客發光體物質，可於一外加偏壓作 用下投射出一第一色光源； 一設於該第一主體材料層上側之第二主體材料層， 混雜設有一第二客發光體物質，可於該外加^壓 用下投射出一第二色光源； 一設於該第二主體材料層上側之第三主體材料芦，1 3 · An organic electro-optical light-emitting device whose main structure includes at least: a first conductive layer having first-type conductivity; a first carrier-transporting layer provided on the upper side of the first conductive layer; A second carrier blocking layer provided on the upper side of the first carrier transporting layer; a first host material layer provided on the upper side of the second carrier blocking layer; a first guest luminous substance is mixed therein; A first color light source is projected under an external bias; a second host material layer disposed on the upper side of the first host material layer is mixed with a second guest luminous substance, which can be used under the external pressure Projecting a second-color light source; a third host material reed disposed on the upper side of the second host material layer, 第i客！光體物質，可於該外加：壓 用下杈射出一第三色光源； 一設於該第三主體材料層上侧之第一載子阻隔；. -具有第二型導電性之第二導電層，設 二 阻隔層之上側。 $ 載No. i guest! A light body substance can be added to the light source: a third-color light source is emitted from the lower branch; a first carrier barrier provided on the upper side of the third body material layer;-a second conductive material having a second conductivity type Layer, the upper side of the two barrier layers. $ Load 第18頁 1245579 六、申請專利範圍 1 4 · 一種有機電激發光裝置’其主要構造至少係包括有·· /陽極； 一設於該陽極上側之電洞傳輸層； /設於該電洞傳輸層上側之電子阻隔層； 一設於該電子阻隔層上侧之第一主體材料層，内混雜 設有一第一客發光體物質，可於一外加偏壓作用下 投射出一第一色光源； 二主體材料層，内 可於該外加偏壓作 一設於a亥第一主體材料層上側之第 混雜設有一第二客發光體物質， 用下投射出一第二色光源； 一設於該第二主體材料層上侧之第三主體材料層，内 混雜設有一第三客發光體物質，可於該外加偏壓作 用下投射出一第三色光源； 設於該第三主體材料層上側之電洞阻隔層； 一設於該電洞阻隔層上側之電子傳輸層；及 一設於該電子傳輸層上侧之陰極。 1 5 ·申清專利範園第丨4項所述之有機電激發光裝置，其中 該陽極之下侧尚可設有一透光基板。 1 6 ·申請專利範圍第丨4項所述之有機電激發光裝置，其中 遠第一主體材料層係為一NPB層，而第二主體材料層 係為一DPVBi層，第三發光體層則為一 Alq3層。 1 7 ·如申請專利範圍第1 4項所述之有機電激發光裝置，其 中遠第一色先源係為紅光，第二色光源係為藍光，而 第三色光源則為綠光。Page 18 1245579 6. Application scope of patent 14 An organic electroluminescence device 'its main structure includes at least / / anode; a hole transmission layer provided on the upper side of the anode; / provided in the hole transmission An electronic barrier layer on the upper side of the layer; a first host material layer provided on the upper side of the electronic barrier layer, mixed with a first guest luminous substance, which can project a first color light source under an external bias; Two main material layers, a second guest luminous material provided on the upper side of the first main material layer of the a bias can be provided inside the external bias voltage, and a second color light source is projected under the one; A third host material layer on the upper side of the second host material layer is mixed with a third guest luminous substance, and a third color light source can be projected under the applied bias; the third host material layer is provided on the upper side A hole barrier layer; an electron transport layer provided on the upper side of the hole barrier layer; and a cathode provided on the upper side of the electron transport layer. 1 5 · The organic electroluminescent device described in item 4 of Shenqing Patent Fanyuan, wherein a light-transmitting substrate may be provided under the anode. 16 · The organic electroluminescent device described in item 4 of the patent application, wherein the far first host material layer is an NPB layer, the second host material layer is a DPVBi layer, and the third emitter layer is One Alq3 layer. 17 · According to the organic electroluminescent device described in item 14 of the scope of patent application, the first source of COSCO Group is red light, the second source of light is blue, and the third source of light is green. 第19頁Page 19
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