200919794 九、發明說明： 【發明所屬之技術領域】 本發明係關於有機功能裝置，諸如有機發光二極體 (OLED) ’以及製造該有機功能裝置的方法。 【先前技術】 為所有有機功能裝置，諸如：有機發光二極體 (〇鮮有機太陽電池、有機光電元件、有機光電二極 體、有機光感㈣等所共有的係有機,力能層夹在一對電極200919794 IX. Description of the Invention: [Technical Field] The present invention relates to an organic functional device such as an organic light emitting diode (OLED)' and a method of manufacturing the organic functional device. [Prior Art] For all organic functional devices, such as organic light-emitting diodes (organic photovoltaic cells, organic photoelectric components, organic photodiodes, organic light perception (4), etc., the organic layer is sandwiched between a pair of electrodes
層之間並且與其交互作用。在0LED中，對在電極層之間 的電壓的操作導致由有機功能層發射光，並且在有機太陽 電池中，由有機功能層吸收光導致在電極層之間電壓的產 生。 有機功能裝置-般係在基板上形成並㈣後藉由蓋板封 閉以防止周圍的物質’諸如水以及氧氣到達裝置的功能層 (電極層以及有機功能層）。 、蓋板可以安裝使得在功能層與蓋板之間存在間隔或者縫 隙。此間隔可例如以惰性氣體諸如氮氣充填。 此等封裝的-個問題是機械穩定性。在周圍環境的壓力 差可引起封裝實質上的變形。尤其在大型裝置中，壓力可 高致使得蓋板實質接觸裝置之功能層，此可造成至少裳置 的局部故障。損害可由蓋板與功能層之間的直接接職夹 在蓋板與功能層之間的粒子引起。 封裝有機功能裝置的替換方式是以以下方式將蓋板附於 基板上：在功能層與蓋板之間的間隔以膠水填充。 131980.doc 200919794 在此方法中，膠水防止蓋板接觸功能層。然而，在製造 期間很難控制膠水的厚度。毛細管的力量將設法將膠水的 厚度減到最小並且其在特殊點上仍存在蓋板與功能層之間 直接接觸的危險。 此外粒子可被夾在蓋板與功能層之間並且導致裝置的 損害。 【發明内容】Interact between and interact with layers. In the OLED, the operation of the voltage between the electrode layers causes light to be emitted by the organic functional layer, and in the organic solar cell, absorption of light by the organic functional layer causes generation of a voltage between the electrode layers. The organic functional device is generally formed on the substrate and (4) is then closed by a cover plate to prevent surrounding substances such as water and oxygen from reaching the functional layers (electrode layer and organic functional layer) of the device. The cover can be mounted such that there is a gap or gap between the functional layer and the cover. This interval can be filled, for example, with an inert gas such as nitrogen. A problem with these packages is mechanical stability. A pressure differential in the surrounding environment can cause substantial deformation of the package. Especially in large installations, the pressure can be so high that the cover substantially contacts the functional layer of the device, which can cause at least partial failure of the skirt. Damage can be caused by particles sandwiched between the cover and the functional layer by direct contact between the cover and the functional layer. An alternative to encapsulating the organic functional device is to attach the cover to the substrate in such a manner that the space between the functional layer and the cover is filled with glue. 131980.doc 200919794 In this method, the glue prevents the cover from contacting the functional layer. However, it is difficult to control the thickness of the glue during manufacturing. The force of the capillary will try to minimize the thickness of the glue and there is still a risk of direct contact between the cover and the functional layer at a particular point. In addition, the particles can be sandwiched between the cover and the functional layer and cause damage to the device. [Summary of the Invention]
鑑於先前技術之以上及其他缺點，本發明之一般目標係 提供具有特別改良之堅固度的改良有機功能裝置。 根據本兔明之第—態樣，此等及其他目標係藉由製造有 機功能裝置之方法完成，該方法包括以下步驟：提供具有 第-電極層及複數個互相間隔分離之分路結構的基板，各 結構與第—電極層直接電接觸；於每個分路結構的頂部提 供絕緣間隔件結構；於第一電極層的頂部形成有機功能 層；於有機功能層的頂部形成第二電極層；及將一蓋板附 於基板上以在該蓋板與基板之間封閉有機功能層。 有機功能裝置的實例包含有機發光二極體（咖D)、有 :光電池、有機光電元件、有機光電二極體以及有機光感 測器。 田婀電極層”應理解為 透明的或不透明的。 "有機功能層”可由許多具有不同功能(諸如電洞注 :傳輸、電洞阻礙、激發阻礙、電子阻礙、電子傳遞、電 /主入或先發射、光吸收層或其混合）的不同有機層組 131980.doc 200919794 成，但亦可包含類似金屬有機材 材料，諸如電介質、半導體或金Z I射極或無機的 ”分路結構，，係導電結構，其 “卡粒子。 、弟 電極層直接趙網& 提供，以在有機功能裝置操作期間 :直接接觸而 造更均句的電壓分佈。例如，分路2弟—電極層之間製 施用，其可形成柵格。與第-電可以金屬條的形式 有高導電性。 電極層相比’分路結構將具 該等分路結構，或”分路”，—般用於大 ， 第一電極層係由透明導電； 、 、、置及/或當 目七 柄使用。透明導電層通當 ，、有低傳導性’使得在缺少分路結構時，在有機功能層 (在第一以及第二電極層之 匕層 )之間的電壓變得依 定。相鄰分路結構的間距一般係在毫米範圍内。 本發明係基於下述而實現：藉 m & ^ 、 精由耠供間隔結構於形成在 二=上的分路結構的頂部’使得有機功能裝置可被 =地：㈣，大體上有關裝置的性能無任何犧牲。如上 斤迷’ 電極層係透明及/或用於大面積裝置 使用分路結構。因此，分路結構 番士# . 吊已存在於有機功能裝 穿置之^党益於間隔件結構’間隔件結構保護有機功能 裝置之有機功能層免遭與蓋板之機械交互作用。此外，八 路結構經常係堅固的並且不易被 刀 為間隔件結構的良好美石楚此、 ，、*分路結構成 ㈣良好基礎。此外，在發射或接收In view of the above and other shortcomings of the prior art, it is a general object of the present invention to provide improved organic functional devices having particularly improved robustness. According to the present invention, these and other objects are accomplished by a method of fabricating an organic functional device, the method comprising the steps of: providing a substrate having a first electrode layer and a plurality of mutually separated split structures; Each structure is in direct electrical contact with the first electrode layer; an insulating spacer structure is provided on top of each of the shunt structures; an organic functional layer is formed on top of the first electrode layer; and a second electrode layer is formed on top of the organic functional layer; A cover plate is attached to the substrate to enclose the organic functional layer between the cover plate and the substrate. Examples of the organic functional device include an organic light emitting diode (coffee D), a photocell, an organic photoelectric element, an organic photodiode, and an organic photo sensor. “Field electrode layer” should be understood to be transparent or opaque. “Organic functional layer” can be used by many different functions (such as hole injection: transmission, hole blocking, excitation obstruction, electron blocking, electron transfer, electric/main entry). Or a different organic layer set of the first emission, light absorbing layer or a mixture thereof, but may also comprise a metal-like organic material such as a dielectric, semiconductor or gold ZI emitter or inorganic "split structure", A conductive structure that has "card particles. The electrode layer is directly provided by Zhao Net & to provide a more uniform voltage distribution during direct operation of the organic functional device. For example, the shunt 2 is applied between the electrode layers, which can form a grid. It has high conductivity in the form of a metal strip that can be electrically charged. The electrode layer will have the same shunt structure, or "split" as the shunt structure, and is generally used for large, first electrode layers are transparently conductive; , , , and/or when used. The transparent conductive layer is versatile and has low conductivity so that in the absence of the shunt structure, the voltage between the organic functional layers (the ruthenium layers of the first and second electrode layers) becomes dependent. The spacing of adjacent shunt structures is typically in the millimeter range. The invention is based on the following: by m & ^, the fine-grained spacing structure is formed on the top of the shunt structure formed on the two = so that the organic functional device can be = ground: (d), substantially related to the device Performance without any sacrifice. As above, the electrode layer is transparent and/or used for large-area devices using a shunt structure. Therefore, the shunt structure Fanshi#. Hanging has existed in the organic function mounting. The party is beneficial to the spacer structure. The spacer structure protects the organic functional layer of the organic functional device from mechanical interaction with the cover. In addition, the eight-way structure is often strong and not easy to be used as a spacer structure, and the structure of the branch is (4) a good foundation. In addition, in transmitting or receiving
Γ功能裝置中，相當於分路結構的有機功能層之部分I ::::::促進裝置之功能，此等部分由不= 構遮蔽。所以’此等有機功能層之部分無需被保護 131980.doc 200919794 達到如位於相鄰分路結構之間的有機功能層部分之程度。 =此，根據本發明之具體實施例’有機功能層可形成：間 隔件結構的頂部，其促進有機功能裝置的生產。 =此，憑藉本發明’可實際完成想望之堅固而未增加處 理乂驟或犧牲任何有機功能裝置之性能。 間隔件結構可能提供於第二電極層的頂部，或較佳地， 在第一電極層與有機功能層之間。 當提供在第一電極層與有機功能層之間時，間隔件結構 、、較佳地具有平順的結構而沒有任何間斷或步階，以便促 進連續的有極層與第二電極層形成於其上。特別地，在第 -電極層與間隔件結構之間的接觸角可有利地小於⑼。。 以此配置，其可仍舊存在蓋板與有機功能裝置之功能層 (第一電極層與有機功能層)的機械接觸，但此接觸發生在 ^分路結構遮蔽之區域’並且因此對裝置功能無顯著影 響。 卜田置於第一與第二電極層之間時，間隔件結構防 止在此等層之間因蓋板與功能層之間機械接觸造成之電學 短路。 門隔件、’Ό構可肊使用多種技術中的一種以形成。例如， 可能使用絲網印刷$例_旦彡、，土 ^ I剩次镟衫法，其使用足夠厚的（>30 μηι)的 阻抗層。 為L擇可施用熱熔化噴墨印刷（有時亦稱為”固體喷 墨"）。 田使㈣@化噴墨印刷時’印製圖案應界限分明並且結 構將具有適當的高度，諸如在30到70 μιη之間，以及具有 13I980.doc 200919794 與表面之接觸角之平順的、淺的邊緣，在其上間隔件結構 以大約60。或更小角度印刷。 在光應由有機功能層接收及/或發射的應用中，基板與 第一電極層及/或蓋板與第二電極層應光學上透明，即至 少部分允許光的通過。In the functional device, it is equivalent to the function of the part I::::: promoting device of the organic functional layer of the shunt structure, and these parts are shielded by the non-construction. Therefore, parts of these organic functional layers need not be protected 131980.doc 200919794 to the extent that they are part of the organic functional layer between adjacent shunt structures. = Thus, in accordance with a particular embodiment of the present invention, the organic functional layer can be formed as a top portion of a spacer structure that facilitates the production of organic functional devices. = Thus, by virtue of the present invention, the desired strength can be practically achieved without adding processing steps or sacrificing the performance of any organic functional device. The spacer structure may be provided on top of the second electrode layer or, preferably, between the first electrode layer and the organic functional layer. When provided between the first electrode layer and the organic functional layer, the spacer structure, preferably has a smooth structure without any discontinuities or steps, in order to promote the formation of a continuous electrode layer and a second electrode layer thereon on. In particular, the contact angle between the first electrode layer and the spacer structure may advantageously be less than (9). . With this configuration, it is still possible to have mechanical contact between the cover layer and the functional layer of the organic functional device (the first electrode layer and the organic functional layer), but this contact occurs in the area where the shunt structure is shielded' and thus has no function to the device. Significant impact. When the pad is placed between the first and second electrode layers, the spacer structure prevents electrical shorting between the layers due to mechanical contact between the cover and the functional layer. Door spacers, 'structures can be formed using one of a variety of techniques. For example, it is possible to use screen printing, which uses a sufficiently thick (>30 μηι) impedance layer. Hot melt inkjet printing (sometimes referred to as "solid inkjet") can be applied for L. When the film is printed, the printed pattern should be clearly defined and the structure will have an appropriate height, such as Between 30 and 70 μm, and a smooth, shallow edge with a contact angle of 13I980.doc 200919794 with the surface, on which the spacer structure is printed at an angle of about 60. or less. The light should be received by the organic functional layer In the application and/or emission application, the substrate and the first electrode layer and/or the cover plate and the second electrode layer should be optically transparent, ie at least partially permit the passage of light.
在此情況下，基板及/或蓋板可由玻璃或透明聚合物製 造，並且第一及/或第二電極層（s)可例如由任何係固有導 電的並且透明的材料製造，或作為選擇，以一足夠薄的金 屬層製造，其可以透明導電的或非導電層的組合提供。 根據本發明之方法對大面積有機功能裝置的生產尤其有 效，諸如OLED-照明裝置以及有機太陽能電池等等。” 根據以上發明之第二態樣，以上及其他目標係藉由有機 功能裝置完成’其包括：具有第一電極層及複數個互相間 隔分離之分路結構的基板，各結構與第—電極層直接電接 觸；提供於第-電極層頂部的有機功能層；安裝於有機功 能層頂部的第二電極層；以及1於基板上之蓋板，以封 閉在蓋板與基板之間的有機功能層。有機功能裝置更進一 步包括複數個絕緣間隔件結構，各結構被安裝於蓋板與基 板之間的位置’與分路結構中的—個對應者一致。 本發明之此第4樣的特色與優點大體_於該等如上 所描述之與本發明之第—態樣有關的部分。 【實施方式】 在隨後之描述中，本發明主要以參考基於之發光 面板描述。吾人應注意此不限制本發明之範圍，其同樣適 I3I980.doc 200919794 0於砟多其他有機功能裝置，諸如有機太陽能電池或有機 光電二極體。 在圖1中，顯示根據先前技術之〇LED丨以例示藉由本發 明解決之堅固問題。 參考圖1，先前技術OLED 1包括具有一功能有機層疊3 形成於其上的透明基板2。功能有機層疊3包括第—透明電 極層4(陽極層），電致發光層（EL層）5，以及第二電極層（陰 極層）6以if常為幾毫米之間隔D，以金屬今丨線7a_e形成 之刀路、纟〇構提供於第一電極層4的頂部以改良整個第一電 極層4的電壓均句&，並且因此改良整個裝置電流分佈均 勾性。此處涉及之電流是流經第一與第二電極層之間之有 機功能層的電流。每個分路結構7卜卜般由薄（―般為W μηι厚）絕緣層8與EL層5電隔離。 功能有機層疊3由保護性蓋板1〇封閉’並且因此形成之 腔室U經常以惰性氣體’例如氮氣充填。當力F施加於保 護性蓋板！0時，蓋板變形並且與功能有機層疊3接觸。藉 由此接觸’有機功能層疊3可被損害，其可導致〇led ^ 性能降低或完全故障。 參考圖2，其示意顯示根據本發明之具體實施例的咖d 20，現在將描述藉由本發明獲得的增強之堅固性。 在圖2之OLED20中’每個分路結構7“由絕緣間隔件結 構21a-e覆蓋。當蓋板10因在圖2中標示之外力f而變形 時，各間隔件結構2la-e具有之高度h足以防止蓋板ι〇接觸 位於間隔件結構2_間的有機功能層疊3。為滿足此情 I31980.doc 200919794 況，間隔件結構21 a-e的高度h將有利地與在間隔件結構（在 此情況下與分路結構7a-e之間相同）之間的距離d以 h/D>30/1 〇〇〇之關係相關聯。此外，如在圖2中例示，間隔 件結構21 a-e將較佳地被形成以致在第一電極層與間隔件 結構21a-e之間的接觸角ec小於60。，因此確保連續的第二 電極層6的形成。 藉由在圖2中顯示之配置’除非發生在極端的狀況，在 蓋板1 0上的力F的施加將僅導致壓力被施用於間隔件結構 21 a-e的頂部El層5 ^在此等部分，EL層係電學上與電極層 4隔離，並且其因此非"有效（active)"。因此，當與間隔件 結構21a-e相關之EL層5的部分被損害時，〇led】的功能 將通常不被影響。 〇人應/主意，雖然在圖2中顯示的蓋板〖〇自間隔件結構 (21a-e)係間隔分離，但蓋板1〇可與間隔件結構接觸 以且放於間隔件結構（21a-e)上。 以下圖2之0LED的製造方法將參考圖3以及圖4&_3描 述。 首先參考圖3以及圖4a，具有第一電極層4以及複數個分 路線路7a_e形成於其上的基板2係提供於第―步驟”中。 在第二步驟32中’絕緣間隔件結構2U_e係提供於分路線 路7a e的頂邛。此係例示於圖仆中。如同樣例示在圖仆中 的’各絕緣間隔件結構應以該等方式形成：在間隔件結構 A以及第：電極層4之間的接觸角以系足夠小以保證隨後 施用之層u其第二電極層6)可連續地跟隨輪麼而無間斷。 131980.doc 200919794 為完成此，接觸角心應如同先前併同圖2所述者，小於6〇。 較佳。接觸角1通常由在其上施加間隔材料之表面6的性質 (例如表面能量）及間隔材料本身的性質，以及施加之方法 決定。 在圖5中，示意例示施用間隔件結構2U_b的較佳方法。 W’示施用間隔件結構21a_b的操作，其在先前藉由熱 _ ⑯化喷墨印刷形成之分路結構7a-b的頂部上。如在圖5中 、 大略地顯示，當加熱熔化之聚合物材料之液滴5 1 a-b時， 〇 f墨列印頭5G沿分路結構7b移動。當然，列印頭50亦可選 擇性地固定，而基板2則係可移動。印刷聚合物材料的性 質以及印刷參數（溫度、液滴尺寸、飛行時間等等）以及印 刷液滴5la-b的表面的性質，一起決定間隔件結構21心5的 最終尺寸。 現返回圖3及圖4c中的流程圖，方法進行至步驟33，其 中有機功能層5以及第二電極層6形成於第—電極層4以及 間隔件結構21 a-e的頂部。 有機功能層5可通常包括若干有機層。假如有機功能裝 置20係聚合物發光二極體（LED),則有機功能層5實質上包 括電洞導體層以及發光聚合物層之雙層層疊，並且可進— 步包含若干額外層，諸如在發光聚合物上的經蒸發之有機 電洞阻礙層。 假如有機功能裝置20是小分子0LED ,則有機功能層5通 常形成如更複雜之層疊，包含電洞注入層、電洞傳輸層、 電子阻礙層、發光層、電洞阻礙層以及電子傳遞層，以及 131980.doc •13· 200919794 電子阻礙層等等。 在最終步驟34中， 盖板10接著附著於基板2以保護有機 功能裝置20不接觸网阁& μ 周圍物質，諸如水以及氧氣，以及免受 機械損傷。藉由間隔件 、 j⑹仵結構2la-e，〇LED 20更不易受到機 械損傷’即如圖2中示意顯示。 在圖2中’顯不根據本發明之有機功能裝置的具體實施 /、八有保濩性蓋板10，在蓋板以及第二電極層ό之間 形成腔室11。 ( Λ ϋ 圖6係根據本發明之有機功能裝置的另—具體實施例的 剖面圖，其係呈所謂的直接密封封裝形式。 士圖6中7^忍例不’在該處例示之有機功能裝置60不同 於在圖2中例示的在於藉由膠水層62將保護性蓋板61附於 土板2上並且夕種層形成於其上（雖然在圖6中未明確顯 示，但在該處例示之有機功能裝置60具有與圖2中的裝置 20相同或一致的層）’其包含間隔件結構。藉由間隔 件結構21a-e的製備，膠水層62可保持平坦並且其最小厚 度相當於間隔件結構21a-e的高度h。 如以上併同圖2所述者，在圖6中的有機功能裝置6〇的蓋 板61可有利地放於間隔件結構21a_ei，雖然此在圖6中未 顯示。 熟習此項技術者應暸解本發明決不局限於較佳之具體實 施例。例如，分路結構不必形成如平行直線，但可具有任 意配置，諸如具有彼此交叉以及水平及垂直延伸的直線柵 格配置。此外，雖然上述描述主要係以相對剛性基板為基 J3J980.doc 14 200919794 2的有機功能性顯示器，但本發明同樣適用於撓性有機功 能裝置，其中間隔件結構藉由防止由於功能層之活動部分 (在間隔件結構之間）與蓋板的摩擦產生的損害， 功能裝置的堅固度。 【圖式簡單說明】 以上係對本發明之此等及其他態樣之詳細描述，其中參 考顯示本發明之當前較佳實施例的附圖，其中： 圖1不意顯示根據先前技術之有機功能裝置的壓力導致 之變形。 圖2示意顯示根據本發明之具體實施例之歷經與圖ι相同 情況的有機功能裝置； 圖3是-流程圖，示意例示圖2中有機功能農置之製造方 法； 圖4以示意例示依據對應之方法步驟之有機功能裝置的 情況； 圖5不意顯示在圖2中有機功能裝置中提供間隔件結構的 不範方法；以及 圖6是根據本發明之有機功能# π埤刀此裒置的另一具體實施例的 剖面圖，其中蓋板由間隔件处 1干、σ構支撐且基板與蓋板之間的 間隔係以填充物質填充。 【主要元件符號說明】In this case, the substrate and/or the cover plate may be made of glass or a transparent polymer, and the first and/or second electrode layer (s) may be made, for example, of any material that is inherently electrically conductive and transparent, or alternatively. Made of a sufficiently thin metal layer that can be provided in a combination of transparent conductive or non-conductive layers. The method according to the invention is particularly effective for the production of large-area organic functional devices, such as OLED-lighting devices and organic solar cells and the like. According to the second aspect of the invention, the above and other objects are accomplished by an organic functional device comprising: a substrate having a first electrode layer and a plurality of mutually separated split structures, each structure and a first electrode layer Direct electrical contact; an organic functional layer provided on top of the first electrode layer; a second electrode layer mounted on top of the organic functional layer; and a cover plate on the substrate to enclose an organic functional layer between the cover plate and the substrate The organic functional device further includes a plurality of insulating spacer structures, each of which is mounted at a position 'between the cover plate and the substrate' and corresponds to a corresponding one of the shunt structures. The fourth feature of the present invention is Advantages are generally as described above in relation to the first aspect of the invention. [Embodiment] In the following description, the invention is mainly described with reference to a light-emitting panel based on it. The scope of the invention is equally applicable to other organic functional devices such as organic solar cells or organic photodiodes in I3I980.doc 200919794. In Figure 1, The LEDs according to the prior art are shown to illustrate the robustness problem solved by the present invention. Referring to Figure 1, the prior art OLED 1 includes a transparent substrate 2 having a functional organic stack 3 formed thereon. The functional organic stack 3 includes a first transparent The electrode layer 4 (anode layer), the electroluminescent layer (EL layer) 5, and the second electrode layer (cathode layer) 6 are usually formed at a distance D of several millimeters, and are formed by a metal path 7a_e. A structure is provided on top of the first electrode layer 4 to improve the voltage average of the entire first electrode layer 4, and thus improve the current distribution of the entire device. The current involved here flows through the first and second The current of the organic functional layer between the electrode layers. Each of the shunt structures 7 is electrically isolated from the EL layer 5 by a thin ("Wum" thick) insulating layer 8. The functional organic laminate 3 is protected by a protective cover 1 The chamber U is closed and the chamber U thus formed is often filled with an inert gas such as nitrogen. When the force F is applied to the protective cover! 0, the cover is deformed and brought into contact with the functional organic laminate 3. By contacting the 'organic function Cascade 3 can be damaged, This results in a reduced or complete failure of the ^led ^. Referring to Figure 2, there is shown a coffee d 20 according to a specific embodiment of the present invention, and the robustness of the enhancement obtained by the present invention will now be described. In the OLED 20 of Figure 2 The shunt structures 7" are covered by insulating spacer structures 21a-e. When the cover 10 is deformed by the force f indicated in Fig. 2, each of the spacer structures 2la-e has a height h sufficient to prevent the cover ι from contacting the organic functional layer 3 located between the spacer structures 2_. In order to satisfy the situation I31980.doc 200919794, the height h of the spacer structure 21 ae will advantageously be the distance d between the spacer structure (in this case the same as between the shunt structures 7a-e) in h/ The relationship between D>30/1 is related. Furthermore, as illustrated in Figure 2, the spacer structures 21a-e will preferably be formed such that the contact angle ec between the first electrode layer and the spacer structures 21a-e is less than 60. Therefore, the formation of the continuous second electrode layer 6 is ensured. By the configuration shown in Figure 2 'unless an extreme condition occurs, the application of force F on the cover 10 will only cause pressure to be applied to the top El layer 5 of the spacer structure 21 ae ^ in these parts The EL layer is electrically isolated from the electrode layer 4, and thus it is not "active". Therefore, when the portion of the EL layer 5 associated with the spacer structures 21a-e is damaged, the function of the 〇led] will usually not be affected. The person should/who, although the cover plate shown in Fig. 2 is separated from the spacer structure (21a-e), the cover plate 1 can be in contact with the spacer structure and placed in the spacer structure (21a). -e). The manufacturing method of the OLED of Fig. 2 below will be described with reference to Fig. 3 and Figs. 4 & _3. Referring first to Figures 3 and 4a, a substrate 2 having a first electrode layer 4 and a plurality of branch lines 7a-e formed thereon is provided in a "step". In a second step 32, the insulating spacer structure 2U_e is Provided in the top of the shunt line 7a e. This is illustrated in the figure servant. As in the illustrated example, the 'insulation spacer structure should be formed in such a manner: in the spacer structure A and the: electrode layer The contact angle between 4 is sufficiently small to ensure that the subsequently applied layer u its second electrode layer 6) can follow the wheel continuously without interruption. 131980.doc 200919794 To accomplish this, the contact angle should be as before 2, less than 6 〇. Preferably, the contact angle 1 is generally determined by the nature of the surface 6 on which the spacer material is applied (e.g., surface energy) and the nature of the spacer material itself, as well as the method of application. A preferred method of applying the spacer structure 2U-b is schematically illustrated. W' illustrates the operation of applying the spacer structure 21a-b on top of the shunt structures 7a-b previously formed by thermal inkjet printing. In Figure 5, roughly displayed When the droplets 5 1 ab of the molten polymer material are heated, the 墨f ink print head 5G moves along the shunt structure 7b. Of course, the print head 50 can also be selectively fixed while the substrate 2 is movable. The nature of the printed polymeric material as well as the printing parameters (temperature, droplet size, time of flight, etc.) and the nature of the surface of the printed droplets 5la-b together determine the final dimensions of the core structure 5 of the spacer structure 21. 4c, the method proceeds to step 33, wherein the organic functional layer 5 and the second electrode layer 6 are formed on top of the first electrode layer 4 and the spacer structure 21 ae. The organic functional layer 5 may generally include a plurality of organic layers If the organic functional device 20 is a polymer light-emitting diode (LED), the organic functional layer 5 substantially comprises a two-layer stack of a hole conductor layer and a light-emitting polymer layer, and may further comprise a number of additional layers, such as The evaporated organic hole barrier layer on the luminescent polymer. If the organic functional device 20 is a small molecule OLED, the organic functional layer 5 is typically formed into a more complex stack including a hole injection layer, hole transport , an electron blocking layer, a light emitting layer, a hole blocking layer, and an electron transport layer, and an electron blocking layer, etc., in a final step 34, the cover 10 is then attached to the substrate 2 to protect the organic functional device. 20 does not touch the net cabinet & μ surrounding materials, such as water and oxygen, and from mechanical damage. With the spacer, j (6) 仵 structure 2la-e, 〇 LED 20 is less susceptible to mechanical damage 'that is shown schematically in Figure 2 In Fig. 2, a specific embodiment of the organic functional device according to the present invention is shown, and a protective cover 10 is formed, and a chamber 11 is formed between the cover and the second electrode layer. Figure 6 is a cross-sectional view showing another embodiment of the organic functional device according to the present invention in the form of a so-called direct hermetic package. In Fig. 6, 7^ is not an example of the organic function exemplified therein. The device 60 differs from that illustrated in Figure 2 in that the protective cover plate 61 is attached to the soil panel 2 by a glue layer 62 and the layer is formed thereon (although not explicitly shown in Figure 6, but there is The illustrated organic functional device 60 has the same or identical layer as the device 20 of Figure 2). It includes a spacer structure. By the preparation of the spacer structures 21a-e, the glue layer 62 can remain flat and its minimum thickness is equivalent The height h of the spacer structure 21a-e. As described above and in connection with Fig. 2, the cover 61 of the organic functional device 6A in Fig. 6 can advantageously be placed in the spacer structure 21a_ei, although this is shown in Fig. 6. It is to be understood by those skilled in the art that the present invention is by no means limited to the preferred embodiment. For example, the shunting structure does not have to be formed as a parallel straight line, but may have any configuration, such as having straight lines that intersect each other and extend horizontally and vertically. Grid configuration. In addition, although the above description is mainly based on an organic functional display based on a relatively rigid substrate, J3J980.doc 14 200919794 2, the present invention is equally applicable to a flexible organic functional device in which the spacer structure is prevented by the active portion of the functional layer. Damage caused by friction with the cover plate (between the spacer structures), the robustness of the functional device. [Simplified description of the drawings] The above is a detailed description of these and other aspects of the present invention, wherein reference is made to the present invention. The drawings of the presently preferred embodiments, wherein: Figure 1 is not intended to illustrate the deformation caused by the pressure of the prior art organic functional device. Figure 2 is a schematic illustration of an organic functional device that follows the same conditions as Figure 1 in accordance with an embodiment of the present invention. 3 is a flow chart showing a manufacturing method of the organic functional agricultural device of FIG. 2; FIG. 4 is a schematic illustration of the case of the organic functional device according to the corresponding method steps; FIG. 5 is not intended to be shown in the organic functional device of FIG. An anomalous method of providing a spacer structure; and FIG. 6 is another organic function of the organic function #ππ埤 according to the present invention A cross-sectional view of a body embodiment in which the cover is supported by the stem at a dry, σ configuration and the space between the substrate and the cover is filled with a filling material.
1 OLED 2 透明基板 3 功能有機層疊 131980.doc 200919794 4 5 6 7a 7b 7c 7d 7e 0 i〇 11 20 50 21a 21b 21c 21d C i 1 21e 51a 51b D F h s 第一透明電極層 電致發光層 第二電極層 分路結構 分路結構 分路結構 分路結構 分路結構 蓋板 腔室 OLED 喷墨列印頭 間隔件結構 間隔件結構 間隔件結構 間隔件結構 間隔件結構 液滴 液滴 距離 力 高度 第一及/或第二電極層 接觸角 131980.doc -16-1 OLED 2 transparent substrate 3 functional organic laminate 131980.doc 200919794 4 5 6 7a 7b 7c 7d 7e 0 i〇11 20 50 21a 21b 21c 21d C i 1 21e 51a 51b DF hs first transparent electrode layer electroluminescent layer second Electrode layer shunt structure shunt structure shunt structure shunt structure shunt structure cover chamber OLED inkjet print head spacer structure spacer structure spacer structure spacer structure spacer structure droplet drop distance force height One and / or second electrode layer contact angle 131980.doc -16-