M3976U2 五、新型說明： 【新型所屬之技術領域】 尤其是關於一 本創作是一種有機發光二極體顯示器， 種具有低反射構造之有機發光二極體顯示器 【先前技術】 相較於其他平面顯示（Flat .貝丁（Flat Panel Display)技術，有機 ^ ^ ^ It M ^ H· ( Organic Light Emitting Diode Display OLED Display )在輕、薄、亮度等方面均㈣很好的優勢， 勢必在現在或未來的顯示器市場佔有—席之地。舉例而M3976U2 V. New description: [New technology field] Especially for one creation is an organic light-emitting diode display, an organic light-emitting diode display with low reflection structure [Prior Art] Compared with other flat displays (Flat. Flat Panel Display technology, organic ^ ^ ^ It M ^ H · (Organic Light Emitting Diode Display OLED Display) in the light, thin, brightness and other aspects (four) very good advantages, is bound to be in the present or the future The display market occupies a place.
s，有機發光二極體顯示器具有自發光效果，纟幅降低顯 不器之結構及所需的電力消因此，不僅具備輕薄之功 j ’且相對於其他平面顯示$ (如液晶顯示器等）更具備 高亮度、低功耗等優勢，實為未來顯示領域之明曰之星。 OLED顯示器雖然有前述諸多特點’但是在其在室外可 視通常普遍不佳，因為傳統〇LED顯示器在室外使用時’ 對比度（contrast ratio)很差，其原因包含下列： 1.0LED —玻璃基板之外表面造成之反射使〇led產 生的光輸出之對比度下降。 2.OLED形成於該玻璃基板之内表面的有機發光結構 中的一鋁陰極電極之環境反射光，也會降低〇LED之輪出 光的對比度。 【新型内容】 3 M397602 基板121、複數個發光二極體元件123、—上蓋基板125 -框膠1 26以及-四分之—波長光學膜結構2〇。s, the organic light-emitting diode display has a self-illuminating effect, the width of the display reduces the structure of the display device and the required power consumption, so that it has not only the light and thin work, but also displays $ relative to other planes (such as liquid crystal displays, etc.). With high brightness, low power consumption and other advantages, it is a clear star in the future display field. Although OLED displays have many of the aforementioned features, they are generally generally poorly visible in the outdoor, because the contrast ratio of the conventional 〇LED displays when used outdoors is poor, and the reasons include the following: 1.0LED—the outer surface of the glass substrate The resulting reflection reduces the contrast of the light output produced by the 〇led. 2. The ambient reflected light of an aluminum cathode electrode formed in the organic light-emitting structure of the OLED on the inner surface of the glass substrate also reduces the contrast of the round-out light of the 〇LED. [New content] 3 M397602 substrate 121, a plurality of light-emitting diode elements 123, a cover substrate 125 - a sealant 1 26 and a quarter-wavelength optical film structure 2 〇.
每個該發光二極體元件彳23形成於該玻璃基板1 2彳之 一内表面，其内部的構造、有機發光元件層狀組織不限定， 例如其可包含依序堆疊於該破璃基板121之一透明導電陽 極電極、-電洞注入層、—電洞傳輸層、一發光層、一電 子傳輸層以及一透明陰極電極1231。該透明導電陽極電極 可以是銦錫氧化物（丨丁〇 )或類似的導電氧化物材料。其中， 採用該透明陰極電極1231之主要原因係為減少該透明陰極 電極1 2 31之反射率’藉以降低該透明陰極電極⑵，對一 環境光的反射率，㈣提升對比度之技術功效。該透明陰 極電極1231之材料可以是透明導電氧化物、薄金屬等，其 中該透明導電氧化物可以是細錫氧化物（丨τ〇)、銦辞氧化 物（ΙΖΟ )、鋁鋅氧化物（ΑΖ〇）等。由於該透明陰極電極1 23」 ㈣於傳統的&陰極有大部分的光透過該透明陰極電極， 因此使環1兄光牙透邊玻璃基板1 2 1進入該低反射室外可 視有機發光二極體顯示器後不因該透明陰極電極彳231反射 而造成對比度下降。 封裝製造時，將該框膠126塗佈於該玻璃基板121之 内表面之周圍，並以该上盍基板125壓合於該框勝125而 與該玻璃基板121密封接合。本實施例之該上蓋基板125 為-平板體；it-步地，冑參考第四圖’ & 了避免該上蓋 基板1 25於封裝製造過程破壞製造完成之發光二極體元件 123之發光構造，可使該上蓋基板125之一内面中間區域 凹設一凹面12 5A，其中 該凹面係可利用蝕刻之方式完成。 6 M397602 升乂成該凹面1 2 5 A ’可以避免該發光二極體元件1 2 3遭到壓 合破壞之風險，因此可以大幅增加本實施例之製程良率。 而且 6玄凹面區域可以進一步放置一吸濕劑（Getter)，藉以 讓密封後之該發光二極體元件123免受濕氣威脅，提升該 發光二極體元件123之壽命。Each of the light-emitting diode elements 23 is formed on one inner surface of the glass substrate, and the internal structure thereof and the layered structure of the organic light-emitting element are not limited. For example, the light-emitting diode element 23 may be sequentially stacked on the glass substrate 121. A transparent conductive anode electrode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and a transparent cathode electrode 1231. The transparent conductive anode electrode may be indium tin oxide or the like. The reason why the transparent cathode electrode 1231 is used is to reduce the reflectance of the transparent cathode electrode 112, thereby reducing the transparency of the transparent cathode electrode (2), the reflectivity of an ambient light, and (4) the technical effect of improving contrast. The material of the transparent cathode electrode 1231 may be a transparent conductive oxide, a thin metal or the like, wherein the transparent conductive oxide may be a fine tin oxide (丨τ〇), an indium oxide (ΙΖΟ), an aluminum zinc oxide (ΑΖ). 〇) and so on. Since the transparent cathode electrode 1 23" (4) has a majority of light passing through the transparent cathode electrode in the conventional & cathode, the ring 1 is light-transmissive to the edge of the glass substrate 1 2 1 into the low-reflection outdoor visible organic light-emitting diode After the body display is not reflected by the transparent cathode electrode 231, the contrast is lowered. At the time of packaging manufacture, the sealant 126 is applied around the inner surface of the glass substrate 121, and the upper substrate 125 is pressed against the frame 125 to be sealingly bonded to the glass substrate 121. The upper cover substrate 125 of the present embodiment is a flat plate; it is step-by-step, and the fourth cover is used to prevent the upper cover substrate 165 from damaging the light-emitting structure of the completed light-emitting diode element 123 during the package manufacturing process. The inner surface of one of the upper cover substrates 125 may be recessed by a concave surface 12 5A, wherein the concave surface may be completed by etching. 6 M397602 is raised into the concave surface 1 2 5 A ′ to avoid the risk of the LED component 1 2 3 being crushed and destroyed, so that the process yield of the embodiment can be greatly increased. Moreover, a hygroscopic agent may be further disposed in the region of the semi-concave surface, so that the sealed LED element 123 is protected from moisture and the life of the LED element 123 is increased.
請參考第三圖’該四分之一波長光學膜結構20包含一 層以上疊合之四分之一波長橢圓偏振（ellipse p〇|ar丨zatj〇n) 光4·膜’其貼合於該玻璃基板ι 21之一外表面。所謂的四 分之一波長橢圓偏振光學膜係指其厚度為某一光學波長之 四分之一且具備橢圓偏振之光學膜，例如光波長為58〇门阳 之四分之一（約為145nm)之光學膜。 本實施例之該四分之一光學骐結構2〇可以初步減少— 環境入射光丨1之一外部反射光R1，R3 ;進一步地，即使該 環境入射光11穿透該玻璃基板121之後進入該發光二極體 元件1 2 3後（標示為丨2 )，由於該透明陰極電極彳2 3彳局部 光穿透，使内部之該環境入射光丨2大部分的分量形成—穿 透光T2，僅有少部分反射形成一内部反射光R2 ;因此，烏 於這兩個效應，大幅降低該内、外部反射光R彳，R2，R3之強 度，因此，讓本實施例在環境入射光丨彳之強度非常強時， 仍舊可以讓使用者清楚看到該發光二極體元件彳23產生之 輪出光E，達到室外可視之技術功效。 _進v地為了更進一步提升對比度，該四分之— 學薄膜結構20可以是包含兩層相互貼合之四分之—波長： 圓偏振(eHipse P0丨arizati〇n)光學膜，％此，更可達到二 的對比度，強化該輸出* E與各反射光R1，R2,R3之對：。 7 M397602 請參考第五圖，為了更進一步提升該色光輸出e之強 f ’以彌補增加之四分之_光學膜造成的輸出光£之強度 降低’可以透過輸入一直流電力以驅動該發光二極體元： ⑵。’如第五圖所示’該低反射室外可視有機發光二極體顯 不益12可連接複數個電壓冑流管制模组14， :::::再連接-驅動控制模…-個電壓電I: '、至）—個邊發光二極體元件123電性連接 f二極體元件123之外形、俯視面積可相同也可不同，； "亥電壓電流管制模組1 4提供之哕冑、、& Φ Λ 少-個該發光：極體⑵，Λ ^^，連接之至 ，、甲°玄電壓電流管制模組14 142…升壓單元142以及-限流單心，該升壓單元 及该限流單元144依據該發光二極體元件123 的直流電力輸出給所連接之該發光二極體 U適應性調整輸出電壓及電流之該升壓單元 及限流單元144’可使本實施例各 ^ β不同面積之發 先一極植元件123取得適合的直旨 果非常均句、高亮度。 。表取終的顯不效 -駆動=^制#組16接受—外部之顯示訊號後，轉換為 動吼唬輸出至該電壓電流管制 管制模組14得以依攄义、+. ^ , 使该電壓電流 蝴-乂“ 則述之控制方式，對不同的發光二極 &疋\ 23進行適應性之直流電力輸出。 ’r、正別述，可知本創作具備下列優點： ⑵學膜結構Μ及該相陰極電極 大幅提升二 射光強度’賦予本創作之對比度 ㈣良好的室料輕。㈣作 8 /ϋυζ 核境’仍可清楚地看清 容，因 … ' 吧有Μ疋分％尤二極體元件123之顯示内 此，本創作可以完全適用於室外環境 錶、汽機車儀表顯示面板等。 敕-各發光二極體元件123彳以是個別直流驅動，讓 :紅之有機發光二極體顯示模組12纟直流驅動、電壓控 艮机輪出等技術下，達成顯示内容更均 延長很多、更省電等諸多技術效果。 【圖式簡單說明】 第圓為本創作之較佳實施例之局部斷面示意圖。 第一圖為本創作之一發光二極體元件結構示意圖。 第三圖為本創作之較佳實施例之光學路徑示意圖。 第四圖為本創作之第二實施例之局部斷面示意圖。 第五圖為本創作之第三實施例之電路方塊示意圖。 【主要元件符號說明】 1 2低反射室外可視有機發光二極體顯示器 1 21玻璃基板 123發光二極體元件 1231透明陰極電極 1 2 5上盘基板 1 25Α凹面 1 26框膠 14電壓電流管制模組 9Please refer to the third figure 'The quarter-wavelength optical film structure 20 includes one or more layers of overlapping quarter-wavelength elliptical polarization (ellipse p〇|ar丨zatj〇n) light 4·film' which is attached thereto One of the outer surfaces of the glass substrate ι 21. The so-called quarter-wavelength elliptically polarizing optical film refers to an optical film having a thickness of one quarter of a certain optical wavelength and having an elliptically polarized light, for example, a light wavelength of 58 〇 之 之 (approximately 145 nm) ) optical film. The quarter optical 骐 structure 2 本 of the embodiment can initially reduce - the external reflected light R1, R3 of one of the ambient incident pupils 1; further, even if the ambient incident light 11 penetrates the glass substrate 121, the After the light-emitting diode element 1 2 3 (labeled as 丨2), due to the partial light penetration of the transparent cathode electrode 彳2 3 ,, most of the components of the internal environment entrance pupil 2 are formed to penetrate the light T2. Only a small part of the reflection forms an internal reflected light R2; therefore, the two effects greatly reduce the intensity of the internal and external reflected light R彳, R2, R3, and therefore, let the present embodiment enter the pupil in the environment. When the intensity is very strong, the user can clearly see the light E generated by the LED component 彳23, and achieve the technical effect of outdoor visibility. In order to further improve the contrast, the quarter-study film structure 20 may comprise four layers which are mutually bonded to each other - wavelength: circular polarization (eHipse P0丨arizati〇n) optical film, %, The contrast of the second can be achieved, and the output *E and the respective reflected light R1, R2, R3 are strengthened: 7 M397602 Please refer to the fifth figure, in order to further enhance the intensity f of the color light output e to compensate for the increase of the quarter _ the intensity of the output light caused by the optical film is reduced 'can pass the input current to drive the light two Polar body: (2). 'As shown in the fifth figure', the low-reflection outdoor visible organic light-emitting diode display 12 can be connected to a plurality of voltage turbulence control modules 14, ::::: re-connect-drive control mode...-voltage I: ', to) - one side light-emitting diode element 123 is electrically connected to the f-dipole element 123, and the top view area may be the same or different; "Hai voltage current control module 14 provides 、、& Φ Λ less-one of the illuminating: polar body (2), Λ ^^, connected to, A 玄 电压 voltage and current control module 14 142... boost unit 142 and - current limiting single core, the boost The unit and the current limiting unit 144 can adjust the output voltage and current according to the DC power output of the LED body 123 to the connected LEDs and the current limiting unit 144 ′. In the embodiment, each of the first and second implant elements 123 having different areas of β is obtained with a suitable uniformity and high brightness. . After the end of the table is inactive - = = = ^ # # 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 16 Current Butterfly - 乂 "The control method described above, the adaptive DC power output for different light-emitting diodes & 疋 \ 23. 'r, just to say, this creation has the following advantages: (2) film structure and The phase cathode electrode greatly enhances the dioptric light intensity' to give the contrast of the creation (four) good room material light. (4) 8 / ϋυζ nuclear environment 'still can clearly see the volume, because ... ' 吧 有%% especially two poles In the display of the body element 123, the creation can be completely applied to the outdoor environment table, the automobile locomotive display panel, etc. 敕 - each of the light-emitting diode elements 123 is individually DC driven, let: the red organic light-emitting diode Under the technology of display module 12 纟 DC drive, voltage control machine wheeling, etc., many technical effects such as extending the display content and increasing power consumption are achieved. [Simplified Schematic] The first embodiment of the present invention is the preferred embodiment. Partial section schematic The first figure is a schematic diagram of the structure of one of the light-emitting diode elements of the present invention. The third figure is a schematic diagram of the optical path of the preferred embodiment of the present invention. The fourth figure is a partial cross-sectional view of the second embodiment of the present invention. Figure 5 is a block diagram of the circuit of the third embodiment of the present invention. [Main component symbol description] 1 2 low reflection outdoor visible organic light emitting diode display 1 21 glass substrate 123 light emitting diode element 1231 transparent cathode electrode 1 2 5 Upper plate substrate 1 25Α concave surface 1 26 frame glue 14 voltage current control module 9