1286045 九、發明說明： 【發明所屬之技術領域】 本發明係有關於一種可提高顯示色階之有機電激發 光顯示裝置，不僅可有效提高光源穿透率及顯示的色階， 又可有效提高各色光混合之均勻度。 【先前技術】 在眾多的顯示器中，如何達到具有全彩顯示效果的技 術往往是該顯示器發展成功與否的關鍵，而就有機電激發 光顯示裝置(OLED)來說，達到全彩顯示功能最常見的方 法有以下兩種： 1·二原色獨立畫素發光··係分別將可產生紅(R)、綠(G)、 藍(B)三原色之有機電激發光元件獨立設置，並將此三 種色光以適當比例混合搭配而產生全彩的顯示效果。 然而，由於該有機電激發光顯示裝置於製作時需要經 由多次的蒸鍍及遮罩對位步驟來產生不同色光的有機 發光單元，不僅在製作程序上較爲繁瑣，且在蒸鍍或 遮罩對位時對準確度的要求亦相對提高，更容易因此 而降低產品良率並相對提高製作成本。 2.彩色濾光片(Color Filter):設置有至少一可產生白色 光源之有機電激發光元件，搭配使用技術純熟之彩色 濾光片，藉由彩色濾光片的使用以達到白色光源之光 色過濾的目的，並因此產生全彩的顯示效果。 1286045 一般利用彩色瀘光片來進行光色過瀘之有機電激發 光顯示裝置，如第1圖所示，彩色濾光片10主要係於一 透明基板11上設置有一黑色矩陣13(BlackMatrix)，並於 未設有黑色矩陣13之透明基板11上表面設有一具有光色 過濾功能之彩色濾光層15，包括有第一彩色光阻151 (G)、第二彩色光阻153 (B)及第三彩色光阻155 (R)。又， 於黑色矩陣13及彩色濾光層15之上方又可選擇設有一平 坦化層17 (Over Coat)或一障蔽層，以有利於後續製程之 進行。 另外，有機電激發光(0LED)元件20之下部電極21 係直接設置於障蔽層或平坦化層17之部分上表面，並於 下部電極21之部分上表面依序設有一有機發光單元23及 一對向電極25,透過下部電極21及對向電極25之工作電 流導通，致使有機發光單元23投射出一白色光源S，該 白色光源S在穿透彩色濾光層15後，將進行一光色過濾 之動作，並成爲綠(G)、藍(B)、紅(R)三原色LI、L2、L3， 並藉此搭配組合以達到有機電激發光(0LED)顯示裝置 200全彩顯示之目的。 藉由彩色濾光片10的使用，該0LED顯示裝置200 只需要一種可產生白色光源S之有機發光單元23，因此 只需要較少之蒸鍍程序，且使用的遮罩係爲全開式遮罩， 可有效降低蒸鍍或遮罩對位時之準確對位困難度。然而白 色光源S對彩色濾光層15的光源穿透率不佳，進而影響 該0LED顯示裝置200之發光亮度及光色飽和度，也就因 4 1286045 此而無法有效提高其發光品質。 【發明内容】 爲此，如何針對上述習用技術所遭遇的問題，設計出 一種新穎之有機電激發光顯示裝置，不但可有效減少蒸鎪 及_罩對位時的困難度以有利於產品良率之提升，又兼具 有提高其光源穿透率、光色飽和度、顯示色階及光色混合 均勻度之功效，此即爲本發明之發明重點。 本發明之主要目的，在於提供一種可提高顯示色階之 有機電激發光顯示裝置，其中於單一畫素內之第一彩色光 阻、第二彩色光阻、第三彩色光阻及第四彩色光阻係以一 矩陣方式排列，將有利於各色光之間的混合並達到提高發 光顯示均勻度之目的。 本發明之次要目的，在於提供一種可提高顯示色階之 有機電激發光顯示裝置，可藉由較少之蒸鑛次數及遮罩的 使用便可以達到全彩化的顯示效果，不僅可簡化製作流 程，又可相對降低在蒸鍍或遮罩使用時之對位準確度的要 求，並因此而有效提高產品良率者。 本發明之又一目的，在於提供一種可提高顯示色階之 有機電激發光顯示裝置，其中於一單一畫素中藉由第一色 光、桌一色光、第二色光及一白光之混合，可有效提高該 有機發光顯示裝置之顯示光源的色階及色飽和度。 爲此’爲達成上述目的，本發明提供一種可提高顯示 色階之有機電激發光顯示裝置，其主要構造係包括有：一 5 1286045 彩色濾光片，主要係於一透明基板之表面設有至少一第一 彩色光阻、至少一第二彩色光阻、至少一第三彩色光阻及 至少一第四彩色光阻，其中，每一組以矩陣方式排列設置 之第一彩色光阻、第二彩色光阻、第三彩色光阻及第四彩 色光阻可形成一畫素；一下部電極，係設置於彩色濾光片 之部分表面；至少一有機發光單元，包括有一第一有機發 光單元及一第四有機發光單元，其中，第一有機發光單元 係設置於第一彩色光阻、第二彩色光阻及第四彩色光阻之 垂直延伸位置，而第四有機發光單元則設置於第二彩色光 阻、第三彩色光阻及第四彩色光阻之垂直延伸位置；及一 對向電極，設置於有機發光單元之表面。 又’爲達上述目的，本發明尙提供一種可提高顯示色 階之有機電激發光顯示裝置之製作方法，其主要係包括有 下列步驟：形成至少一第一彩色光阻、一第二彩色光阻、 一第三彩色光阻及一第四彩色光阻於一透明基板之表 面，以成爲一彩色濾光片；將一第一遮罩選擇放置於彩色 爐光片之弟二彩色光阻之垂直延伸位置；以一‘第一^蒸鑛源 對準第一彩色光阻、第二彩色光阻及第四彩色光阻之垂直 延伸位置，並進行一第一有機發光單元之蒸鍍程序；將一 第四遮罩選擇放置於彩色濾光片之第一彩色光阻之垂直 延伸位置；及以一第四蒸鍍源對準第二彩色光阻、第三彩 色光阻及第四彩色光阻之垂直延伸位置，並進行一第四有 機發光單元之蒸鍍程序。 6 1286045 【實施方式】 茲爲使貴審查委員對本發明之特徵、結構及所達成 之功效有進一步之瞭解與認識，謹佐以較佳之實施圖例及 配合詳細之說明，說明如後： 首先，請參閱第2圖、第3圖及第3 A圖，係分別爲 本發明可提高顯示色階之有機電激發光顯示裝置一較佳 實施例之立體示意圖、部分構造立體示意圖及剖面示意 圖；如圖所示，本發明有機電激發光（OLED)顯示裝置 400主要係於一彩色濾光片30之上表面設有至少一有機 電激發光（〇LE：D)元件40，該彩色濾光片30主要係於 一透明基板31之部分上表面設有至少一黑色矩陣 33(Black Matrix)，並於黑色矩陣33之部分上表面及該透 明基板31上未設有黑色矩陣33之部分上表面增設有一具 有光色過濾功能之彩色濾光層35 (或稱彩色光阻），該彩色 濾光層35主要係包括有至少一第一彩色光阻351、至少一 第二彩色光阻353、至少一第三彩色光阻355及至少一第 四彩色光阻361，其中，該第四彩色光阻361係可爲一透 光部或鏤空部。又，於黑色矩陣33及彩色濾光層35上方 可覆蓋有一平坦障蔽單元37，例如一平坦化層(Over Coat)、一障蔽層(Barrier Layer)或兩者皆是，當該第四彩 色光阻361係選擇爲一鏤空部時，則可於該第四彩色光阻 361(鏤空部)內設置有該平坦障蔽單元37 ° 該彩色濾光片30之平坦障蔽單元37的上表面部分區 域係設置有至少一0LED元件40的下部電極41 ’並於該 7 1286045 下部電極41之部分上表面依序設有一有機發光單元43及 一對向電極45，其中，該有機發光單元43係包括有至少 一第一有機發光單元431及至少一第四有機發光單元 437，當下部電極41及對向電極45之間供給有一工作電 流時，該第一有機發光單元431將可產生一第一光源S1， 而第四有機發光單元437則可產生一第四光源S4，且， 該第一光源S1及第四光源、S4係相互爲一互補光源。 又，於OLED發光顯示裝置400中，係透過一第一彩 色光阻351、一第二彩色光阻353、一第三彩色光阻355 及一第四彩色光阻361構成一畫素401(pixel)，且，該第 一彩色光阻351、第二彩色光阻353、第三彩色光阻355 及第四彩色光阻361係以一矩陣方式排列，而該第一有機 發光單元431係設置於部分下部電極41的上表面，位於 彩色濾光片30之第一彩色光阻351、第二彩色光阻353 及第四彩色光阻361的垂直延伸位置，而第四有機發光單 元437則設置於彩色濾光片30之第三彩色光阻355垂直 延伸位置之下部電極41的上表面，與第二彩色光阻353 及第四彩色光阻361之垂直延伸位置之第一有機發光單元 431上表面。 藉此，該第一有機發光單元431所產生之第一光源 S1將可穿透第一彩色光阻351，並過濾而產生一第一色光 L1，而第四有機發光單元437所產生之第四光源S4則可 在穿透第三彩色光阻355後，過濾產生一第三色光L3， 又，該第二彩色光阻353及第四彩色光阻361垂直延伸位 8 1286045 置之下部電極41上表面形成有一層疊設置之第一有機發 光單元431及第四有機發光單元437，並可產生一第五光 源S5，該第五光源S5在穿透第二彩色光阻353後將被過 濾成爲一第二色光L2，而在穿透第四彩色光阻361後， 將會依據該第四彩色光阻361的不同而過濾出不同的第五 色光L5，例如，該第四彩色光阻361係選擇爲一透光部 或鏤空部時，將使得該第五光源S5直接穿透該第四彩色 光阻361(透光部或鏤空部），並使得該第五色光L5維持該 第五光源S5原本之光色。 又，該第五光源S5之光色係依據第一有機發光單元 431及第四有機發光單元437之材料的選擇及設置而有不 同的變化，例如，當第一光源S1及第四光源S4係選擇 爲一互補光源時，將可使得該第五光源S5成爲一白色光 源。 於本發明一實施例中，該第一有機發光單元431所產 生之第一光源S1係可爲一藍色光源，而第四有機發光單 元437所產生之第四光源S4則可爲該第一光源S1之互補 色光，例如爲一橙色光源或黃色光源，而該層疊設置之第 一有機發光單元431及第四有機發光單元437所產生之第 五光源S5係可爲一白色光源，且，該第一彩色光阻351、 第二彩色光阻353、第三彩色光阻355及第四彩色光阻361 係分別爲一藍色光阻(351)B、綠色光阻(353)G、紅色光阻 (355)R及透光部(361)或鏤空部，藉此，該第一光源S1(藍 光)在穿透第一彩色光阻351 (藍色光阻)後，將過濾產生一 9 1286045 第一色光L1(藍光），第四光源S4(橙光)在穿透第三彩色光 阻355 (紅色光阻)後將過濾而成爲一第三色光L3(紅光）， 而第五光源S5(白光)在穿透第二彩色光阻353 (綠色光阻) 後將過濾而成爲一第二色光L2(綠光），又，該第五光源 S5將會直接穿透該第四彩色光阻361 (鏤空部或透光 部），並形成一第五色光L5(白光）。 又，該彩色濾光層35中之第二彩色光阻353及第四 彩色光阻361之設置位置係可加以交換，同樣可達到光色 過濾之目的。 當然，於本發明又一實施例中，該第一有機發光單元 431所產生之第一光源S1亦可爲一紅色光源或爲一綠色 光源，而該第四有機發光單元437所產生之第四光源S4 將分別爲一藍綠色光源或紫色光源，且，該第一彩色光阻 351、第二彩色光阻353、第三彩色光阻355及第四彩色光 阻361之設置位置亦隨之改變，藉此可達到OLED顯示裝 置400全彩顯示之目的。 又，當第四彩色光阻361係爲一鏤空部或透光部時， 該第五光源S5(白色光源）將會直接穿透第四彩色光阻 361，並形成一第五色光L5(白光），藉此將有利於提高該 OLED顯示裝置400在顯示時的色階。 又，該有機發光單元43內部可分別選擇包括有一電 洞注入層432(HIL)、一電洞傳輸層433(HTL)、一有機發 光層(EML)、一電子傳輸層438(ETL)、一電子注入層 439(EIL)及上述各元件組合式之其中之一。 1286045 於本發明一實施例中係可於該有機發光層設置前，於 該下部電極41之上表面依序設置有該電洞注入層432及 電洞傳輸層433，而後，再於該電洞傳輸層433之部分上 表面設置有該第一有機發光單元431之第一有機發光層 4311，並於該第一有機發光層4311及電洞傳輸層433之 部分上表面設置有該第四有機發光單元437之第四有機發 光層4371，並於該第一有機發光層4311及第四有機發光 層4371之上表面設置有該電子傳輸層438及電子注入層 439，最後，於該電子注入層439之上表面設置有該對向 電極45。 又，該第一有機發光單元431及第四有機發光單元 437係可選擇爲一單層型有機發光單元或一複數層疊設型 有機發光卓兀所構成者，例如，第一^有機發光單兀431係 可爲一單層型有機發光單元，並於其內部包含有該第一有 機發光層4311，而第四有機發光單元437係可爲一複數層 疊設型有機發光單元，並於其內部包含有一第二有機發光 層434及一第三有機發光層435之疊設。 再者，請參閱第4圖及第4 A圖，係爲本發明另一實 施例之部分構造立體示意圖及剖面示意圖；如圖所示，本 發明有機電激發光(OLED)顯示裝置之單一畫素403，係於 一基板32之上表面設有至少一有機電激發光（〇LED)元 件40，並於該基板32未設置有該OLED元件40之部分 上表面設置有一封裝蓋板39，以達到保護該OLED元件 40之目的。其中，該封裝蓋板39之部分底層係設置有至 1286045 少一黑色矩陣33，並於該黑色矩陣33之部分上表面及未 設有該黑色矩陣33之封裝蓋板39的底層設置有一具有光 色過瀘功能之彩色濾光層35 (彩色光阻），其主要係包括有 一第一彩色光阻351、第二彩色光阻353、第三彩色光阻 355及第四彩色光阻361。 該彩色濾光層35之垂直延伸位置下之基板32的上表 面設置有至少一下部電極41，並於該第二彩色光阻353、 第三彩色光阻355及第四彩色光阻361之垂直延伸位置上 設置有該第四有機發光單元437，而該第一彩色光阻351 及第四彩色光阻361之垂直延伸位置上則設置有該第一有 機發光單元431，相較於第3圖實施例而言，該第一有機 發光單元431及第四有機發光單元437之設置次序係加以 改變，又，於部分之第四有機發光單元437及第一有機發 光單元431之上表面設置有至少一對向電極45，其中，該 對向電極45係可選擇由一具透光導電特性之材質所製 成，藉此，該第一有機發光單元431所產生之第一光源 S1、第四有機發光單元437所產生之第四光源S4及兩者 層疊而產生之第五光源S5，將可依序穿透該對向電極45 及設置於該封裝蓋板39底層之彩色濾光層35，而達到該 OLED顯示裝置401頂部發光(Top-Emission)之目的。 又，該基板32亦可設定爲一彩色濾光片30(如圖2所 示），藉此，該第一光源S1、第四光源S4及第五光源S5 將可同時穿透封裝蓋板39及彩色濾光片30，而達到該 0LED顯承裝置雙面發光之目的。 1286045 接續，請參閱第5圖及第5 A圖，係爲本發明又一實 施例之部分構造立體示意圖及剖面示意圖；如圖所示，本 發明主動式(Active Matrix)有機電激發光(OLED)顯示裝置 之單一畫素601，主要係於一透明基板51之部分上表面設 置有至少一薄膜電晶體(TFT)53，並於該透明基板51及該 薄膜電晶體53之部分上表面覆蓋有至少一絕緣層54，其 中，該絕緣層54內部係設置有至少一第一彩色光阻551、 第二彩色光阻553、第三彩色光阻555及第四彩色光阻 561，又，於絕緣層54之部分上表面設置有至少一下部電 極61，且，該下部電極61係分別與相對應之薄膜電晶體 53電性相連接。 又，於第一彩色光阻551、第二彩色光阻553、第三 彩色光阻555及第四彩色光阻561之垂直延伸位置上設置 有一可產生第一光源S1之第一有機發光單元631，並於 該第二彩色光阻553、第三彩色光阻555及第四彩色光阻 561之垂直延伸位置上設置有一可產生第四光源S4之第 四有機發光單元637，其中，該第一光源S1及第四光源 S4係相互爲一互補色光，並於該第一有機發光單元631 及第四有機發光單元637之上表面設置有至少一對向電極 65 〇 又，該有機發光單元63(第一有機發光單元631及第 四有機發光單元637)亦可選擇由至少一主發光體(Host Emitter ; Η)中摻雜有至少一摻雜物(Dopant ; D)之摻雜型 有機發光單元’同樣可達到產生第一光源S1及第四光源 1286045 S4之目的。 又，請參閱第6圖及第6 A圖所示，係爲本發明又一 實施例之部分構造立體示意圖及剖面示意圖；如圖所示， 本發明主動式有機電激發光顯示裝置之單一畫素603，主 要係於一彩色濾光片50之上表面依序設置有該薄膜電晶 體53及絕緣層54,並於該絕緣層54之上表面依序設置有 該下部電極61、有機發光單元63及對向電極65。 其中，該第一有機發光單元631係設置於第一彩色光 阻551、第二彩色光阻553、第三彩色光阻555及第四彩 色光阻561之垂直延伸位置，而該第四有機發光單元637 則設置於第三彩色光阻555的第四彩色光阻561之垂直延 伸位置。且，該第一彩色光阻551、第二彩色光阻553、 第三彩色光阻555及第四彩色光阻561皆個別位於該單一 畫素603中之一次畫素(sub pixel)上，其中，各彩色光阻 之設置位置係可加以變更，又，當各彩色光阻之設置位置 有所變化時，該第一有機發光單元631及第四有機發光單 元637之設置位置亦隨之改變，例如，相較於第5圖所述 實施例而言，本發明實施例中之第四彩色光阻561及第二 彩色光阻553之設置位置係加以交換，且，該第一有機發 光單元631及第四有機發光單元637之設置亦隨之改變。 又，請參閱第7圖所示，係爲本發明又一實施例之部 分構造立體示意圖；如圖所示，本發明有機電激發光顯示 裝置之單一畫素605與第6圖所述之單一畫素603不同之 處在於，本發明實施例中係第二彩色光阻553之垂直延伸 14 1286045 位置上增設有一第五有機發光單元636，且，該第五有機 發光單元636所產生之光源的光色係與第二彩色光阻553 爲同一色系，例如，當第二彩色光阻553爲一綠色光阻時 該第五有機發光單元636則選擇爲一可產生綠色光源之有 機發光單兀。 最後，請參閱第8 A圖及第8 B圖，係分別爲本發明 有機電激發光顯示裝置於各製程步驟之立體示意圖；如圖 所示，本發明OLED顯示裝置之單一畫素401主要係於一 基板31之上表面分別設置有一第一彩色光阻351、第二彩 色光阻353、第三彩色光阻355及第四彩色光阻361，且， 該第一彩色光阻351、第二彩色光阻353、第三彩色光阻 355及第四彩色光阻361係以一矩陣方式排列，而形成一 彩色濾光片30，並於該彩色爐光片30之上表面增設有一 下部電極41，該下部電極41設置完成後，透過一蒸鍍之 方式於下部電極41之上表面設置有至少一第一有機發光 單元431之第一有機發光層4311及至少一第四有機發光 單元437之第四有機發光層4371。 首先，將一第一遮罩491放置於第三彩色光阻355之 垂直延伸位置，再以一第一蒸鍍源481進行一第一有機發 光單兀431之第一有機發光層4311的蒸鍍程序，此時， 該第一彩色光阻351、第二彩色光阻353及第四彩色光阻 361之垂直延伸位置之下部電極41的上表面將會形成有 一第一有機發光單元431之第一有機發光層4311，如第8 A圖所示。 1286045 再將一第四遮罩497放置於第一彩色光阻351之垂直 延伸位置，再以一第四蒸鍍源487進行該第四有機發光單 元437之第四有機發光層4371的蒸鍍程序，此時，該第 三彩色光阻355之垂直延伸位置之下部電極41的上表 面，及第二彩色光阻353與第四彩色光阻361之垂直延伸 位置之第一有機發光層4311的上表面將形成有該第四有 機發光單元437之第四有機發光層4371，如第8 B圖所 示0 當然，在本發明一較佳實施例中，於該第一有機發光 層4311及第四有機發光層4371之蒸銨程序進行前，在下 部電極41表面以蒸鍍之方式形成有一電洞注入層432及/ 或一電洞傳輸層434，如第3 A圖所示。之後，再於電洞 注入層432或電洞傳輸層434之部分表面形成該第一有機 發光層4311及第四有機發光層4371，又，當第一有機發 光層4311及第四有機發光層4371設置完成後，亦可再於 第一有機發光層4311及/或第四有機發光層4371之上表 面以蒸鍍之方式形成有一電子傳輸層438及/或電子注入 層 439。 又，於實際應用時，該第一有機發光層4311及第四 有機發光層4371之設置次序係可加以改變，例如，可先 進行第四有機發光層4371之設置，再進行第一有機發光 層4311的設置。 又，該彩色濾光片30之第一彩色光阻35卜第二彩色 光阻353、第三彩色光阻355及第四彩色光阻361之設置 16 1286045 位置係可加以改變，而該第一彩色光阻351、第二彩色光 阻353、第三彩色光阻355及第四彩色光阻361之位置更 改的同時，該第一有機發光層43Π及第四有機發光層 4371的設置位置亦隨之更改。 當然’上述製程步驟同樣可適用於主動式(Active Matrix)有機電激發光顯示裝置中，第一有機發光單元(631) 及第四有機發光單元(637)同樣可依序形成，在此不再贅 述。 綜±所述’當知本發明係有關於一種可提高顯示色階 之有機電:激發光顯示裝置，不僅可有效提高光源穿透率及 顯示的色階’又可有效提高各色光混合之均勻度。故本發 明實爲一富有新穎性、進步性，及可供產業利用功效者， 應符合專利申請要件無疑，爰依法提請發明專利申請，懇 請貴審查委員早日賜予本發明專利，實感德便。 以上所述者，僅爲本發明之一較佳實施例而已，並非 用來限定本發明實施之範圍，即凡依本發明申請專利範圍 所述之形狀、構造、特徵及精神所爲之均等變化與修飾， 均應包括於本發明之申請專利範圍內。 【圖式簡單說明】 第1圖：係爲習用有機電激發光顯示裝置之剖面示意圖。 第2圖：係爲本發明有機電激發光顯示裝置一較佳實施例 之立體示意圖。 第3圖：係爲本發明上述實施例之部分構造1L體不意圖。 1286045 第3 A圖：係爲本發明上述實施例之剖面示意圖。 第4圖：係爲本發明另一實施例之部分構造立體示意圖。 第4 A圖：係爲本發明上述實施例之剖面示意圖。 第5圖：係爲本發明主動式有機電激發光顯示裝置之部分 構造立體示意圖。 第5 A圖：係爲本發明上述實施例之剖面示意圖。 第6圖：係爲本發明又一實施例之部分構造立體示意圖。 第6 A圖：係爲本發明上述實施例之剖面示意圖。 > 第7圖：係爲本發明又一實施例之立體示意圖。 第8 A圖及第8 B圖：係爲本發明有機電激發光顯示裝置 於各製程步驟之立體示意圖。 【主要元件符號說明】 10 彩色濾光片 11 透明基板 13 黑色矩陣 15 彩色濾光層 151 第一彩色光阻 153 第二彩色光阻 155 第三彩色光阻 17 平坦化層 20 有機電激發光元件 21 下部電極 23 有機發光單元 25 對向電極 30 彩色濾光片 31 透明基板 32 基板 33 黑色矩陣 35 彩色濾光層 351 第一彩色光阻 353 第二彩色光阻 355 第三彩色光阻 361 第四彩色光阻 37 平坦障蔽單元 18 12860451286045 IX. Description of the Invention: [Technical Field] The present invention relates to an organic electroluminescent display device capable of improving display color gradation, which can effectively improve the light source transmittance and the displayed color gradation, and can effectively improve The uniformity of mixing of the various colors of light. [Prior Art] In many displays, how to achieve a full-color display technology is often the key to the success of the display, and the electro-optic excitation light display device (OLED) achieves the full-color display function. There are two common methods: 1. The two primary color independent pixels emit light. The organic electroluminescent elements that can generate the three primary colors of red (R), green (G), and blue (B) are separately set. The three color lights are mixed and matched in an appropriate ratio to produce a full-color display effect. However, since the organic electroluminescence display device requires an organic light-emitting unit that generates different color lights through multiple evaporation and mask alignment steps during fabrication, it is not only cumbersome in the fabrication process, but also in vapor deposition or masking. When the cover is aligned, the accuracy requirement is relatively increased, which makes it easier to reduce the yield of the product and relatively increase the production cost. 2. Color Filter: Set at least one organic electroluminescent element that can produce a white light source, and use a color filter that is skillful to use, and use the color filter to achieve the light of the white light source. The purpose of color filtering, and thus the full color display. 1286045 Generally, a color light-emitting sheet is used for performing an organic electroluminescence display device with a light color. As shown in FIG. 1, the color filter 10 is mainly provided with a black matrix 13 (BlackMatrix) on a transparent substrate 11. And a color filter layer 15 having a light color filtering function is disposed on the upper surface of the transparent substrate 11 not provided with the black matrix 13, and includes a first color photoresist 151 (G) and a second color photoresist 153 (B). The third color photoresist 155 (R). Further, a flat layer 17 (Over Coat) or a barrier layer may be optionally disposed above the black matrix 13 and the color filter layer 15 to facilitate subsequent processing. In addition, the lower electrode 21 of the organic electroluminescent (0LED) element 20 is directly disposed on a portion of the upper surface of the barrier layer or the planarization layer 17, and an organic light-emitting unit 23 and a portion are sequentially disposed on a portion of the upper surface of the lower electrode 21. The working electrode of the counter electrode 25 is transmitted through the lower electrode 21 and the counter electrode 25, so that the organic light emitting unit 23 projects a white light source S. After the white light source S penetrates the color filter layer 15, a light color is applied. The filtering action becomes green (G), blue (B), and red (R) three primary colors LI, L2, L3, and the combination thereof is used to achieve the purpose of the organic electroluminescent (0LED) display device 200 full color display. With the use of the color filter 10, the OLED display device 200 requires only one organic light-emitting unit 23 that can generate the white light source S, so that less evaporation process is required, and the mask used is a full-open mask. , can effectively reduce the difficulty of accurate alignment when vapor deposition or mask alignment. However, the light source transmittance of the white light source S to the color filter layer 15 is not good, thereby affecting the luminance and color saturation of the OLED display device 200, and the illuminating quality cannot be effectively improved due to 4 1286045. SUMMARY OF THE INVENTION To this end, how to design a novel organic electro-optic display device for the problems encountered in the above-mentioned conventional techniques, which can effectively reduce the difficulty of the distillation and the hood to facilitate the product yield. The improvement also has the effect of improving the light source transmittance, the light color saturation, the display color gradation and the light color mixing uniformity, which is the focus of the invention. The main object of the present invention is to provide an organic electroluminescent display device capable of improving display color gradation, wherein the first color photoresist, the second color photoresist, the third color photoresist, and the fourth color in a single pixel The photoresists are arranged in a matrix manner, which will facilitate the mixing between the respective color lights and achieve the purpose of improving the uniformity of the light emission display. A secondary object of the present invention is to provide an organic electroluminescence display device capable of improving display color gradation, which can achieve full color display by using less steaming times and masks, and can not only simplify The production process can relatively reduce the accuracy of the alignment accuracy when using the vapor deposition or the mask, and thus effectively improve the product yield. Another object of the present invention is to provide an organic electroluminescent display device capable of improving display color gradation, wherein a single pixel is mixed with a first color light, a table color light, a second color light, and a white light. The color gradation and color saturation of the display light source of the organic light-emitting display device can be effectively improved. To achieve the above objective, the present invention provides an organic electroluminescent display device capable of improving display color gradation, the main structure of which comprises: a 5 1286045 color filter, which is mainly provided on the surface of a transparent substrate. At least one first color photoresist, at least one second color photoresist, at least one third color photoresist, and at least one fourth color photoresist, wherein each set of first color photoresists arranged in a matrix manner, The two color photoresists, the third color photoresist, and the fourth color photoresist may form a pixel; the lower electrode is disposed on a portion of the surface of the color filter; and the at least one organic light emitting unit includes a first organic light emitting unit And a fourth organic light emitting unit, wherein the first organic light emitting unit is disposed at a vertical extending position of the first color photoresist, the second color photoresist, and the fourth color photoresist, and the fourth organic light emitting unit is disposed at the first a vertical extension position of the second color photoresist, the third color photoresist, and the fourth color photoresist; and a pair of electrodes disposed on the surface of the organic light emitting unit. In order to achieve the above object, the present invention provides a method for fabricating an organic electroluminescent display device capable of improving display gradation, which mainly comprises the steps of: forming at least a first color photoresist and a second color light a third color photoresist and a fourth color photoresist are formed on the surface of a transparent substrate to form a color filter; a first mask is selectively placed on the color light film of the color light film a vertically extending position; aligning a vertical position of the first color photoresist, the second color photoresist, and the fourth color photoresist with a first source; and performing an evaporation process of the first organic light emitting unit; And placing a fourth mask in a vertical extension position of the first color photoresist of the color filter; and aligning the second color photoresist, the third color photoresist, and the fourth color light with a fourth evaporation source The vertical extension position is blocked, and a vapor deposition process of a fourth organic light-emitting unit is performed. 6 1286045 [Embodiment] In order to give your reviewers a better understanding and understanding of the features, structure and effects of the present invention, please refer to the better implementation of the legend and the detailed description, as explained below: First, please Referring to FIG. 2, FIG. 3 and FIG. 3A, respectively, a perspective view, a partial structural schematic view and a cross-sectional view of a preferred embodiment of an organic electroluminescent display device capable of improving display gradation according to the present invention; As shown, the organic electroluminescent (OLED) display device 400 of the present invention is mainly provided with at least one organic electroluminescence (〇LE:D) element 40 on the upper surface of a color filter 30. The color filter 30 is provided. The upper surface of a transparent substrate 31 is mainly provided with at least one black matrix 33, and a part of the upper surface of the black matrix 33 and a portion of the upper surface of the transparent substrate 31 not provided with the black matrix 33 are provided with a black matrix 33. A color filter layer 35 (or a color photoresist) having a color filter function, the color filter layer 35 mainly includes at least a first color photoresist 351 and at least a second color photoresist 353 At least a third color photoresist 355 and at least a fourth color resist 361, wherein the fourth color photoresist lines 361 may be a light-transmitting portion or a hollow portion. Further, a black barrier 33 and a color filter layer 35 may be covered with a planar barrier unit 37, such as an over Coat, a barrier layer, or both, when the fourth colored light When the resistor 361 is selected as a hollow portion, the flat barrier unit 37 can be disposed in the fourth color resist 361 (hollow portion). The upper surface portion of the flat barrier unit 37 of the color filter 30 is An organic light emitting unit 43 and a pair of opposite electrodes 45 are disposed on the upper surface of the lower electrode 41 of the 7 1286045, and the organic light emitting unit 43 includes at least one of the lower electrodes 41 ′. a first organic light emitting unit 431 and at least one fourth organic light emitting unit 437, when an operating current is supplied between the lower electrode 41 and the opposite electrode 45, the first organic light emitting unit 431 can generate a first light source S1. The fourth organic light emitting unit 437 can generate a fourth light source S4, and the first light source S1 and the fourth light source and S4 are mutually complementary light sources. Moreover, in the OLED light-emitting display device 400, a pixel 401 (pixel) is formed by a first color photoresist 351, a second color photoresist 353, a third color photoresist 355, and a fourth color photoresist 361. The first color photoresist 351, the second color photoresist 353, the third color photoresist 355, and the fourth color photoresist 361 are arranged in a matrix, and the first organic light emitting unit 431 is disposed on the first color light-emitting unit 431. The upper surface of the portion of the lower electrode 41 is located at a vertical extending position of the first color photoresist 351, the second color photoresist 353, and the fourth color photoresist 361 of the color filter 30, and the fourth organic light emitting unit 437 is disposed at The upper surface of the lower electrode 111 of the third color resist 355 of the color filter 30 and the upper surface of the first organic light emitting unit 431 extending perpendicularly to the second color photoresist 353 and the fourth color photoresist 361 . Thereby, the first light source S1 generated by the first organic light emitting unit 431 can penetrate the first color photoresist 351 and be filtered to generate a first color light L1, and the fourth organic light emitting unit 437 generates the first The four light sources S4 can be filtered to generate a third color light L3 after penetrating the third color photoresist 355. Further, the second color photoresist 353 and the fourth color photoresist 361 are vertically extended at a position of 8 1286045. The first surface of the first organic light emitting unit 431 and the fourth organic light emitting unit 437 are formed on the upper surface, and a fifth light source S5 is generated. The fifth light source S5 is filtered into a first color light barrier 353. The second color light L2, after penetrating the fourth color photoresist 361, will filter different fifth color lights L5 according to the fourth color photoresist 361, for example, the fourth color photoresist 361 When the light source or the hollow portion is selected, the fifth light source S5 directly penetrates the fourth color photoresist 361 (light transmitting portion or hollow portion), and the fifth color light L5 maintains the fifth light source. S5 original light color. Moreover, the color of the fifth light source S5 varies according to the selection and setting of the materials of the first organic light emitting unit 431 and the fourth organic light emitting unit 437, for example, when the first light source S1 and the fourth light source S4 are When selected as a complementary light source, the fifth light source S5 can be made a white light source. In an embodiment of the present invention, the first light source S1 generated by the first organic light emitting unit 431 may be a blue light source, and the fourth light source S4 generated by the fourth organic light emitting unit 437 may be the first light source. The complementary color light of the light source S1 is, for example, an orange light source or a yellow light source, and the fifth light source S5 generated by the stacked first organic light emitting unit 431 and the fourth organic light emitting unit 437 can be a white light source, and the The first color photoresist 351, the second color photoresist 353, the third color photoresist 355, and the fourth color photoresist 361 are respectively a blue photoresist (351) B, a green photoresist (353) G, and a red photoresist. (355) R and the light transmitting portion (361) or the hollow portion, whereby the first light source S1 (blue light) after filtering through the first color photoresist 351 (blue light resistance), will generate a 9 1286045 first The color light L1 (blue light), the fourth light source S4 (orange light) will be filtered to become a third color light L3 (red light) after penetrating the third color photoresist 355 (red light resistance), and the fifth light source S5 ( White light) after filtering through the second color photoresist 353 (green photoresist) to become a second color light L2 (green light), again, the first A light source directly through S5 will resist the fourth color 361 (hollow portion or the light-transmitting portion), and forming a fifth color light L5 (white). Moreover, the positions of the second color photoresist 353 and the fourth color photoresist 361 in the color filter layer 35 can be exchanged, and the same purpose can be achieved for the color filter. Of course, in another embodiment of the present invention, the first light source S1 generated by the first organic light emitting unit 431 may also be a red light source or a green light source, and the fourth organic light emitting unit 437 generates the fourth The light source S4 will be a blue-green light source or a purple light source, respectively, and the positions of the first color photoresist 351, the second color photoresist 353, the third color photoresist 355, and the fourth color photoresist 361 will also change. Thereby, the purpose of the full color display of the OLED display device 400 can be achieved. Moreover, when the fourth color photoresist 361 is a hollow portion or a light transmitting portion, the fifth light source S5 (white light source) directly penetrates the fourth color photoresist 361 and forms a fifth color light L5 ( White light), thereby facilitating the improvement of the color gradation of the OLED display device 400 at the time of display. Moreover, the inside of the organic light-emitting unit 43 can be respectively selected to include a hole injection layer 432 (HIL), a hole transport layer 433 (HTL), an organic light-emitting layer (EML), an electron transport layer 438 (ETL), and a An electron injection layer 439 (EIL) and one of the above combinations of elements. 1286045 In an embodiment of the present invention, the hole injection layer 432 and the hole transport layer 433 are sequentially disposed on the upper surface of the lower electrode 41 before the organic light emitting layer is disposed, and then the hole is further formed in the hole A portion of the upper surface of the transmission layer 433 is provided with a first organic light-emitting layer 4311 of the first organic light-emitting unit 431, and a fourth organic light-emitting layer is disposed on a portion of the upper surface of the first organic light-emitting layer 4311 and the hole transport layer 433. The fourth organic light-emitting layer 4371 of the unit 437 is provided with the electron transport layer 438 and the electron injection layer 439 on the upper surface of the first organic light-emitting layer 4311 and the fourth organic light-emitting layer 4371. Finally, the electron injection layer 439 is disposed on the surface. The counter electrode 45 is provided on the upper surface. Moreover, the first organic light emitting unit 431 and the fourth organic light emitting unit 437 may be selected as a single layer type organic light emitting unit or a plurality of stacked organic light emitting elements, for example, the first organic light emitting unit. The 431 series may be a single-layer type organic light-emitting unit, and the first organic light-emitting layer 4311 is included therein, and the fourth organic light-emitting unit 437 may be a plurality of stacked organic light-emitting units, and is included in the interior thereof. There is a stack of a second organic light-emitting layer 434 and a third organic light-emitting layer 435. 4 and FIG. 4A are schematic perspective views and cross-sectional views showing another embodiment of the present invention; as shown, a single painting of the organic electroluminescent (OLED) display device of the present invention is shown. The element 403 is provided with at least one organic electroluminescence (〇LED) element 40 on the upper surface of a substrate 32, and a package cover 39 is disposed on a portion of the upper surface of the substrate 32 where the OLED element 40 is not disposed. The purpose of protecting the OLED element 40 is achieved. The bottom layer of the package cover 39 is provided with a black matrix 33 to 1286045, and a light is disposed on a portion of the upper surface of the black matrix 33 and the bottom surface of the package cover 39 not provided with the black matrix 33. The color filter layer 35 (color resist) of the color over-charging function mainly includes a first color photoresist 351, a second color photoresist 353, a third color photoresist 355, and a fourth color photoresist 361. The upper surface of the substrate 32 in the vertically extending position of the color filter layer 35 is provided with at least a lower electrode 41, and is perpendicular to the second color photoresist 353, the third color photoresist 355 and the fourth color photoresist 361. The fourth organic light emitting unit 437 is disposed at an extended position, and the first organic light emitting unit 431 is disposed at a vertical extending position of the first color photoresist 351 and the fourth color photoresist 361, compared to the third image. In an embodiment, the arrangement order of the first organic light emitting unit 431 and the fourth organic light emitting unit 437 is changed, and at least a portion of the fourth organic light emitting unit 437 and the first organic light emitting unit 431 are disposed on the upper surface. a pair of electrodes 45, wherein the counter electrode 45 is selected from a material having a light-transmitting conductive property, whereby the first light source S1 and the fourth organic light generated by the first organic light-emitting unit 431 are organic The fourth light source S4 generated by the light emitting unit 437 and the fifth light source S5 which are formed by laminating the light source unit 437 can sequentially penetrate the opposite electrode 45 and the color filter layer 35 disposed on the bottom layer of the package cover 39. Reach the OLED display 401 top emission (Top-Emission) purposes. Moreover, the substrate 32 can also be configured as a color filter 30 (as shown in FIG. 2), whereby the first source S1, the fourth source S4, and the fifth source S5 can simultaneously penetrate the package cover 39. And the color filter 30, and achieve the purpose of double-sided illumination of the OLED display device. 1286045 Continuation, please refer to FIG. 5 and FIG. 5A, which are schematic perspective views and a cross-sectional view showing a part of the structure of the present invention; as shown, the active matrix organic electroluminescence (OLED) of the present invention is shown. The single pixel 601 of the display device is mainly provided with at least one thin film transistor (TFT) 53 on the upper surface of a transparent substrate 51, and the upper surface of the transparent substrate 51 and the thin film transistor 53 are covered with At least one insulating layer 54, wherein the insulating layer 54 is internally provided with at least a first color photoresist 551, a second color photoresist 553, a third color photoresist 555, and a fourth color photoresist 561, and is further insulated A portion of the upper surface of the layer 54 is provided with at least a lower electrode 61, and the lower electrode 61 is electrically connected to the corresponding thin film transistor 53, respectively. Further, a first organic light emitting unit 631 capable of generating the first light source S1 is disposed at a vertically extending position of the first color photoresist 551, the second color photoresist 553, the third color photoresist 555, and the fourth color photoresist 561. And a fourth organic light emitting unit 637 capable of generating a fourth light source S4 is disposed at a vertical extending position of the second color photoresist 553, the third color photoresist 555, and the fourth color photoresist 561, wherein the first The light source S1 and the fourth light source S4 are mutually complementary color light, and the upper surface of the first organic light emitting unit 631 and the fourth organic light emitting unit 637 are provided with at least a pair of opposite electrodes 65, and the organic light emitting unit 63 ( The first organic light emitting unit 631 and the fourth organic light emitting unit 637) may also select a doped organic light emitting unit doped with at least one dopant (Dopant; D) in at least one main illuminator (Host Emitter; Η) 'The same can be achieved for the purpose of generating the first light source S1 and the fourth light source 1286045 S4. 6 is a perspective view and a cross-sectional view showing a part of the structure of the present invention; as shown in the drawing, the single drawing of the active organic electroluminescent display device of the present invention is shown. The 603 is mainly provided with the thin film transistor 53 and the insulating layer 54 on the surface of the color filter 50, and the lower electrode 61 and the organic light emitting unit are sequentially disposed on the upper surface of the insulating layer 54. 63 and the counter electrode 65. The first organic light emitting unit 631 is disposed at a vertical extending position of the first color photoresist 551, the second color photoresist 553, the third color photoresist 555, and the fourth color photoresist 561, and the fourth organic light emitting The unit 637 is disposed at a vertical extension position of the fourth color photoresist 561 of the third color photoresist 555. The first color photoresist 551, the second color photoresist 553, the third color photoresist 555, and the fourth color photoresist 561 are each located on a sub pixel of the single pixel 603, wherein The setting positions of the respective color photoresists can be changed, and when the setting positions of the respective color photoresists are changed, the positions of the first organic light emitting unit 631 and the fourth organic light emitting unit 637 are also changed. For example, the positions of the fourth color resist 561 and the second color resist 553 in the embodiment of the present invention are exchanged, and the first organic light emitting unit 631 is exchanged. The arrangement of the fourth organic light emitting unit 637 also changes. 7 is a perspective view showing a part of the structure of the embodiment of the present invention; as shown, the single pixel 605 of the organic electroluminescent display device of the present invention is the same as that described in FIG. The pixel 603 is different in that, in the embodiment of the present invention, a fifth organic light emitting unit 636 is added to the vertical extension 14 1286045 of the second color photoresist 553, and the light source generated by the fifth organic light emitting unit 636 is added. The light color system and the second color photoresist 553 are in the same color system. For example, when the second color photoresist 553 is a green photoresist, the fifth organic light emitting unit 636 is selected as an organic light emitting unit capable of generating a green light source. . Finally, please refer to FIG. 8A and FIG. 8B, which are respectively perspective views of the organic electroluminescent display device of the present invention in various process steps; as shown, the single pixel 401 of the OLED display device of the present invention is mainly A first color photoresist 351, a second color photoresist 353, a third color photoresist 355, and a fourth color photoresist 361 are respectively disposed on the upper surface of the substrate 31, and the first color photoresist 351 and the second color The color photoresist 353, the third color photoresist 355, and the fourth color photoresist 361 are arranged in a matrix to form a color filter 30, and a lower electrode 41 is disposed on the upper surface of the color furnace sheet 30. After the lower electrode 41 is disposed, the first organic light-emitting layer 4311 and the at least one fourth organic light-emitting unit 437 of the at least one first organic light-emitting unit 431 are disposed on the upper surface of the lower electrode 41 by evaporation. Four organic light-emitting layers 4371. First, a first mask 491 is placed at a vertical extension position of the third color photoresist 355, and then a first evaporation layer 481 is used to perform evaporation of the first organic light-emitting layer 4311 of the first organic light-emitting unit 431. a first step of forming a first organic light emitting unit 431 on the upper surface of the lower electrode 41 of the first color resist 351, the second color photoresist 353, and the fourth color photoresist 361 The organic light-emitting layer 4311 is as shown in Fig. 8A. 1286045, a fourth mask 497 is placed at a vertical extension position of the first color photoresist 351, and a vapor deposition process of the fourth organic light-emitting layer 4371 of the fourth organic light-emitting unit 437 is performed by a fourth evaporation source 487. At this time, the upper surface of the lower electrode 41 of the third color resist 355 and the first organic light-emitting layer 4311 of the second color resist 353 and the fourth color resist 361 are vertically extended. The fourth organic light-emitting layer 4371 of the fourth organic light-emitting unit 437 is formed on the surface, as shown in FIG. 8B. Of course, in a preferred embodiment of the present invention, the first organic light-emitting layer 4311 and the fourth Before the evaporation process of the organic light-emitting layer 4371 is performed, a hole injection layer 432 and/or a hole transport layer 434 are formed on the surface of the lower electrode 41 by vapor deposition, as shown in FIG. 3A. Thereafter, the first organic light-emitting layer 4311 and the fourth organic light-emitting layer 4371 are formed on a portion of the surface of the hole injection layer 432 or the hole transport layer 434. Further, when the first organic light-emitting layer 4311 and the fourth organic light-emitting layer 4371 After the setting is completed, an electron transport layer 438 and/or an electron injection layer 439 may be formed by vapor deposition on the upper surface of the first organic light-emitting layer 4311 and/or the fourth organic light-emitting layer 4371. Moreover, in actual application, the order of setting the first organic light-emitting layer 4311 and the fourth organic light-emitting layer 4371 may be changed. For example, the fourth organic light-emitting layer 4371 may be disposed first, and then the first organic light-emitting layer may be performed. 4311 settings. Moreover, the position of the first color photoresist 35, the second color photoresist 353, the third color photoresist 355, and the fourth color photoresist 361 of the color filter 30 can be changed, and the first The positions of the first organic light-emitting layer 43 and the fourth organic light-emitting layer 4371 are also changed, as the positions of the color resist 351, the second color resist 353, the third color resist 355, and the fourth color resist 361 are changed. Change. Of course, the above process steps can also be applied to an active matrix organic electroluminescent display device. The first organic light emitting unit (631) and the fourth organic light emitting unit (637) can also be formed in sequence, and no longer Narration. The invention relates to an organic electric device capable of improving display color gradation: an excitation light display device, which can not only effectively improve the light source transmittance and the displayed color gradation, but also effectively improve the uniformity of light mixing of the respective colors. degree. Therefore, the invention is truly novel, progressive, and available for industrial use. It should be consistent with the patent application requirements, and the invention patent application should be submitted according to law. Please ask the examination committee to give the invention patent as soon as possible. The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the shape, structure, features, and spirit of the invention are equally varied. And modifications are intended to be included in the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic cross-sectional view showing a conventional organic electroluminescence display device. Fig. 2 is a perspective view showing a preferred embodiment of the organic electroluminescent display device of the present invention. Fig. 3 is a view showing a part of the structure of the above embodiment of the present invention. 1286045 Figure 3A is a schematic cross-sectional view of the above embodiment of the present invention. Figure 4 is a perspective view showing a partial configuration of another embodiment of the present invention. Figure 4A is a schematic cross-sectional view of the above embodiment of the present invention. Fig. 5 is a perspective view showing a part of the structure of the active organic electroluminescence display device of the present invention. Figure 5A is a schematic cross-sectional view of the above embodiment of the present invention. Figure 6 is a perspective view showing a part of the structure of another embodiment of the present invention. Figure 6A is a schematic cross-sectional view of the above embodiment of the present invention. > Fig. 7 is a perspective view showing still another embodiment of the present invention. 8A and 8B are perspective views of the organic electroluminescent display device of the present invention in various process steps. [Main component symbol description] 10 color filter 11 transparent substrate 13 black matrix 15 color filter layer 151 first color photoresist 153 second color photoresist 155 third color photoresist 17 flattening layer 20 organic electroluminescent element 21 lower electrode 23 organic light emitting unit 25 opposite electrode 30 color filter 31 transparent substrate 32 substrate 33 black matrix 35 color filter layer 351 first color photoresist 353 second color photoresist 355 third color photoresist 361 fourth Color photoresist 37 flat barrier unit 18 1286045
39 401 41 431 432 434 437 438 45 487 497 51 54 553 561 603 61 631 637 200 封裝蓋板 40 畫素 403 下部電極 43 第一有機發光單元 4311 電洞注入層 433 第二有機發光層 435 第四有機發光單元 4371 電子傳輸層 439 對向電極 481 第四蒸鍍源 491 第四遮罩 50 透明基板 53 絕緣層 551 第二彩色光阻 555 第四彩色光阻 601 畫素 605 下部電極 63 第一有機發光單元 636 第四有機發光單元 65 有機電激發光顯示裝置 有機電激發光顯示裝置 有機電激發光元件 畫素 有機發光單元 第一有機發光層 電洞傳輸層 第三有機發光層 第四有機發光層 電子注入層 第一蒸鍍源 第一遮罩 彩色濾光片 薄膜電晶體 第一彩色光阻 第三彩色光阻 畫素 畫素 有機發光單元 第五有機發光單元 對向電極 40039 401 41 431 432 434 437 438 45 487 497 51 54 553 561 603 61 631 637 200 Package cover 40 Pixel 403 Lower electrode 43 First organic light-emitting unit 4311 Hole injection layer 433 Second organic light-emitting layer 435 Fourth organic Light-emitting unit 4371 Electron transport layer 439 Counter electrode 481 Fourth vapor deposition source 491 Fourth mask 50 Transparent substrate 53 Insulation layer 551 Second color photoresist 555 Fourth color photoresist 601 pixel 605 Lower electrode 63 First organic light Unit 636 fourth organic light emitting unit 65 organic electroluminescent display device organic electroluminescence display device organic electroluminescence element pixel organic light emitting unit first organic light emitting layer hole transport layer third organic light emitting layer fourth organic light emitting layer electron Injecting layer first vapor deposition source first mask color filter thin film transistor first color photoresist third color photoresist pixel organic light emitting unit fifth organic light emitting unit counter electrode 400