201220922 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及半導體領域，尤其涉及有機發光二極體。 [先前技術] [0002] 有機發光二極體的半導體層係N塑有機分子材料和p型有 機分子材料，在二者的接觸面會產生發光現象。有機發 光二極體通常包括一層玻璃或塑膠基板’其上設有一層 透明的陽極層，一層有機半導體材料層’上層係金屬陰 極，最頂部為透明蓋板，該蓋板和該基板之間形成收容 空間。 [0003] 惟，先前技術中的有機發光二極體的耐候性較差’對外 界環境的變化反應敏感’因此大大限制了有機發光二極 體的應用範圍，縮短了有機發光二極體的使用壽命。 【發明内容】 [0004] 有鑒於此，提供一種耐候性較好的有.機發手二極體。 [0005] 一種有機發光二極體，其包括一基底’一發光層’一透 ❹ 光的玻璃或塑料上蓋，該發光層封裝於該上蓋和該基底 之間，該有機發光二極體還包括一層抗反射層’該抗反 射層位於該上蓋和該發光層之間，且緊貼該發光層。 [0006] 相對於先前技術，本發明於發光層和上蓋之間設有一層 抗反射層，該抗反射層耐候性好，該抗反射層緊貼該發 光層可以更好地保護發光層，延長有機發光二極體的使 用壽命。 【實施方式】 099139142 表單編號A0101 第3頁/共9頁 0992068260-0 201220922 [0007] [0008] [0009] [0010] [0011] [0012] [0013] 099139142 以下將結合圖式對本發明作進一步詳細說明。 請參閱圖1 ’本發明實施例提供的有機發光二極體10包括 一基底12，一發光層14，一上蓋18，該發光層14封裝於 該上蓋18和該基底12之間。該上蓋18透光，例如可以選 擇玻璃或透光的塑料。 該發光層I4包括—陰極層141，一有機材料層142以及一 陽極層143。該陰極層141靠近該基底12，該陽極層143 靠近該抗反射層16。該陰極層141為金屬，該陽極層143 可以選擇透明導電薄臈，例如銦锡金屬氧化物薄膜（ITO， Indium Tin Oxides)。該基底12的材料為塑料或者玻 璃。 該陰極層141和陽極層143可以交換位置。 該上蓋18和該發光層14之間設有一層抗反射層16。該抗 反射層16緊貼於該發光層丨4。該抗反射層16具有非導電 性，由高低折射率材料交替堆疊而咸，例如由Ti和Si09 ...... Cl 材料交替堆疊’其對波長為420nm~640nm的光線反射率 可達99%以上，厚度在200nm〜300nm之間。 該上蓋18和該發光層14僅有該抗反射層16，當然還可以 留有空氣間隙。 該抗反射層16可在高濕度的環境下防止水汽進入該發光 層14而使發光層14失效，同時由於該抗反射層16對光線 的透射率非常高，因此既可保護該發光層14，又不會影 響該發光層14的光電轉換效率，從而增加該有機發光二 極體10的耐候性，並延長有機發光二極體10的使用壽命 表單編號A0101 第4頁/共9頁 0992068260-0 201220922 [0014] [0015] Ο [0016] [0017] 〇 [0018] [0019] [0020] 該上蓋18具有一個朝向該發光層14的下表面181，該抗反 射層16設於該下表面181，例如，可以是將該抗反射層16 鍍於該下表面181，然後與該有機發光二極體10的其他部 份封裝在一起。 在其他實施方式中，可以先將該抗反射層16鍍於該發光 層14的上表面140，然後封裝於該有機發光二極體10的内 部。 該基底12和該上蓋18之間設有封裝体20以將該發光層14 封裝在内。該封裝體20連接該基底12和該上蓋18，該封 裝體20的材料為紫外光固化膠，紫外光固化膠可以有效 地防止外部的水汽進入該有機發光二極體10的内部。 綜上所述，本發明確已符合發明專利之要件，遂依法提 出專利申請。惟，以上所述者僅為本發明之較佳實施方 式，自不能以此限制本案之申請專利範圍。舉凡熟悉本 案技藝之人士援依本發明之精神所作之等效修飾或變化 ，皆應涵蓋於以下申請專利範圍内。 【圖式簡單說明】 圖1係本發明實施例提供的有機發光二極體的結構示意圖 〇 【主要元件符號說明】 有機發光二極體：10 基底：12 099139142 表單編號Α0101 第5頁/共9頁 0992068260-0 201220922 [0021] 發光層：14 [0022] 抗反射層：16 [0023] 上蓋：18 [0024] 上表面：140 [0025] 陰極層：141 [0026] 有機材料層：142 [0027] 陽極層：143 [0028] 下表面：181 [0029] 封裝體：20 0992068260-0 099139142 表單編號A0101 第6頁/共9頁201220922 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to the field of semiconductors, and more particularly to an organic light-emitting diode. [Prior Art] [0002] The semiconductor layer of the organic light-emitting diode is an N-type organic molecular material and a p-type organic molecular material, and a light-emitting phenomenon occurs at the contact faces of the two. The organic light-emitting diode generally comprises a glass or plastic substrate having a transparent anode layer thereon, an organic semiconductor material layer 'the upper layer is a metal cathode, and the top is a transparent cover plate, and the cover plate and the substrate are formed. Containment space. [0003] However, the organic light-emitting diode of the prior art has poor weather resistance 'sensitive to changes in the external environment', thus greatly limiting the application range of the organic light-emitting diode and shortening the service life of the organic light-emitting diode. . SUMMARY OF THE INVENTION [0004] In view of the above, there is provided a machine-made hand diode having better weather resistance. [0005] An organic light-emitting diode comprising a substrate 'a light-emitting layer' and a light-transmissive glass or plastic cover, the light-emitting layer being encapsulated between the upper cover and the substrate, the organic light-emitting diode further comprising An anti-reflective layer is disposed between the upper cover and the luminescent layer and is in close contact with the luminescent layer. Compared with the prior art, the present invention provides an anti-reflection layer between the light-emitting layer and the upper cover, and the anti-reflection layer has good weather resistance, and the anti-reflection layer closely adheres to the light-emitting layer to better protect the light-emitting layer and extend The service life of organic light-emitting diodes. [Embodiment] 099139142 Form No. A0101 Page 3 / 9 Page 0992068260-0 201220922 [0007] [0009] [0010] [0013] [0013] 099139142 The following will further the present invention in conjunction with the drawings. Detailed description. Referring to FIG. 1 , an organic light emitting diode 10 according to an embodiment of the present invention includes a substrate 12 , a light emitting layer 14 , and an upper cover 18 . The light emitting layer 14 is encapsulated between the upper cover 18 and the substrate 12 . The upper cover 18 is transparent, and for example, glass or light transmissive plastic can be selected. The light-emitting layer I4 includes a cathode layer 141, an organic material layer 142, and an anode layer 143. The cathode layer 141 is adjacent to the substrate 12, and the anode layer 143 is adjacent to the anti-reflection layer 16. The cathode layer 141 is a metal, and the anode layer 143 may be selected from a transparent conductive thin layer such as an indium tin oxide film (ITO). The material of the substrate 12 is plastic or glass. The cathode layer 141 and the anode layer 143 can exchange positions. An anti-reflection layer 16 is disposed between the upper cover 18 and the luminescent layer 14. The anti-reflection layer 16 is in close contact with the luminescent layer 丨4. The anti-reflective layer 16 has non-conductivity and is alternately stacked and salted by high-low-refractive-index materials, for example, Ti and Si09 ... Cl materials are alternately stacked. The reflectance of light having a wavelength of 420 nm to 640 nm is up to 99. Above 100%, the thickness is between 200 nm and 300 nm. The upper cover 18 and the luminescent layer 14 have only the anti-reflection layer 16, and of course, an air gap can be left. The anti-reflective layer 16 can prevent moisture from entering the light-emitting layer 14 in a high-humidity environment to disable the light-emitting layer 14. At the same time, since the transmittance of the anti-reflective layer 16 to light is very high, the light-emitting layer 14 can be protected. Moreover, the photoelectric conversion efficiency of the light-emitting layer 14 is not affected, thereby increasing the weather resistance of the organic light-emitting diode 10 and prolonging the service life of the organic light-emitting diode 10. Form No. A0101 Page 4 of 9 0992068260-0 [0015] [0020] [0020] The upper cover 18 has a lower surface 181 facing the light-emitting layer 14, and the anti-reflection layer 16 is disposed on the lower surface 181. For example, the anti-reflective layer 16 may be plated on the lower surface 181 and then packaged with other portions of the organic light emitting diode 10. In other embodiments, the anti-reflective layer 16 may be first plated on the upper surface 140 of the light-emitting layer 14 and then encapsulated inside the organic light-emitting diode 10. A package body 20 is disposed between the substrate 12 and the upper cover 18 to encapsulate the light-emitting layer 14. The package body 20 is connected to the substrate 12 and the upper cover 18. The material of the package body 20 is a UV curable adhesive, and the UV curable glue can effectively prevent external moisture from entering the inside of the organic light emitting diode 10. In summary, the present invention has indeed met the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing the structure of an organic light-emitting diode according to an embodiment of the present invention. [Signaling of main components] Organic light-emitting diode: 10 Base: 12 099139142 Form No. Α0101 Page 5 of 9 Page 0992068260-0 201220922 [0021] Light-emitting layer: 14 [0022] Anti-reflection layer: 16 [0023] Upper cover: 18 [0024] Upper surface: 140 [0025] Cathode layer: 141 [0026] Organic material layer: 142 [0027] Anode layer: 143 [0028] Lower surface: 181 [0029] Package: 20 0992068260-0 099139142 Form No. A0101 Page 6 of 9