1260801 九、發明說明： 【發明所屬之技術領域】 本發明係種發光裝置，更制的是，本發明 係有關-種白光發光裝置，該白光發光裝置能發出均勾性 及演色性均佳的白光。 【先前技術】 目月ίι白光發光裝置的翻，在照明方面，主要是供應 汽糊閱讀燈、裝飾燈等使用，目前該產品主要是供小^ 寸为光源使用，就應用面來看，以彩色手機之螢幕背光源 及手機附數位相機之閃光燈最為看好。整體而言，白光發 光裝置為極具發展潛力的產t。然而，自光發光裝置要達 到白光的特性，其具有光备度不均勻且光演色性不佳的特 質，該等因素將影響發光裝置的品質。台灣發明專利公告 第383508號之發光裝置及顯示裝置、公告第％觸號之 新白光LED、公告第556365號之製作白光發光二極體光 源之方法及公告第465123號之高功率自光發光二極體等 專利案所揭露之螢光層均是由無機聚合物（例如她石權 石(YAG)黃色螢光層）所構成。但是當以塗佈方法將螢光 層塗覆於發光元件（例如LED)之表面及周圍時，其均勻 性及附著性皆無法有效地控制，故被激發出的光與原來未 文激發的光混合而成一混合光（白光），由於彼此間混合不 均勾，因此白光可能是例如中間偏藍而周圍偏黃，人眼或 許可觀察到白光，但當將該混合光投射在純白紙上時，則 呈現中間偏藍而周圍偏黃的結果。要如何消弓耳此項問題是 7 Γ260801 亟待解決的重要課題。 【發明内容】 因此，本發明的目的係在提供—種白 該白光發統置能發出均概及演紐触如光，、以解 決上述習知技藝上的課題。 為了達到上述目的，本發明提供一種白光發光裝 置，該白光發光裝置包括…發以日片，作為發光光源，1260801 IX. Description of the Invention: [Technical Field] The present invention relates to a light-emitting device, and more particularly, the present invention relates to a white light-emitting device capable of emitting uniformity and color rendering properties. White light. [Prior Art] The illuminating of the white light illuminating device is mainly used for the supply of vapor paste reading lamps, decorative lamps, etc. At present, the product is mainly used for small light sources, and in terms of application surface, The screen backlight of a color mobile phone and the flash of a mobile phone with a digital camera are most optimistic. Overall, white light emitting devices are highly promising products. However, self-light-emitting devices are required to achieve the characteristics of white light, which have the characteristics of uneven optical readiness and poor color rendering, and these factors will affect the quality of the light-emitting device. The invention discloses a light-emitting device and a display device of the invention patent No. 383508, a new white light LED which announces the first touch number, a method for producing a white light-emitting diode light source of the publication No. 556365, and a high-power self-lighting light of the 465123 The phosphor layers disclosed in the polar body and the like are all composed of an inorganic polymer such as a yellow fluorite layer of her stone (YAG). However, when the phosphor layer is applied to the surface and the periphery of the light-emitting element (for example, an LED) by a coating method, the uniformity and the adhesion thereof cannot be effectively controlled, so that the excited light and the originally unexcited light are not effectively controlled. Mixed into a mixed light (white light), because of the uneven mixing between the two, the white light may be, for example, the middle is bluish and the surroundings are yellowish, and the human eye may allow white light to be observed, but when the mixed light is projected on pure white paper, It is the result of a blueish middle and a yellowish periphery. How to eliminate the problem is an important issue to be solved in 7 Γ 260801. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a white light-emitting device capable of emitting a uniformity and a touch of light to solve the above-mentioned problems in the prior art. In order to achieve the above object, the present invention provides a white light emitting device comprising: a Japanese light source as a light emitting source,
該發光光源會發出波長介於34〇 _〜495 _之間的_第 一光；-有機螢光層，該有機螢光層係將_有機聚合物藉 由塗佈、網版印刷、平版印刷、贿、點注、洗注、貼合 或真空蒸_方法職於該發光“之表面上而製得；以 及一封裝層，内含具有均勻擴散功能之複數個奈米級晶 粒’该封裝層係將該發光4#及該有機螢光層包覆封裝， 其中’該發光晶片所發出的光能激發該有機螢光層，該有 機螢光層叉激發後發出波長介於530 雇之間的The illuminating light source emits a _first light having a wavelength between 34 〇 and 495 _; an organic fluorescent layer which is coated, screen printed, lithographically printed by the organic fluorescent layer , bribe, note, wash, fit or vacuum steam _ method is made on the surface of the luminescence; and an encapsulation layer containing a plurality of nano-sized grains with uniform diffusion function. The layer is coated with the light-emitting layer 4# and the organic phosphor layer, wherein the light emitted by the light-emitting chip excites the organic phosphor layer, and the organic phosphor layer is excited to emit a wavelength between 530 and hiring of
第一光，ό亥第一光的波長與該第一光之波長不同，該第 一光與该發光光源之未經該有機螢光層吸收的第一光在該 封裝層中進行混合，而形成一混合光，該混合光經該封裝 層中所含的该些奈米級晶粒聚光、折射後能更加均勾地混 合，進而從該封裝層向外發射出均勻性及演色性均佳的白 光，而其中又值得注意的是，作為有機螢光層材料之該有 機聚合物係： 第一類型··三聚氰胺-磺醯胺-甲醛共聚物型 (Melamine-Sulphonamide-Formaldehyde Copolymer Type)，或是 8 I26〇8〇i 第二類型·單胺基二嗪-腺-甲酸-續醯胺共縮合物型 (Aminotriazine-Urea-Formaldehyde- Sulphonamide Type) 該有機螢光層係封裝於具有聚光及折射光特性的封 裝層中，進而可使該發光裝置向外發射出色度均勻性及演 色性均佳的混合光（即，白光）。 由本發明下述之實施方式及所附之圖式，本發明的 珂述及其他目的、特徵、觀點及優點將會更加明瞭。 【實施方式】 下面將參考圖式以更加詳細的方式描述本發明的較 佳貫施例。 第一圖係本發明之白光發光裝置的截面圖。如第一 圖所不，發光晶片10作為·發光光源，受電極作用後可發 出波長為340 nm〜495 nm之間的光，其包含紫外光、紫 光、監光或監綠光。有機螢光層20係藉由塗佈、網版印 刷、平版印刷、濺鍍、點注、澆注'貼合或真空蒸鍍等方 法，將如下所示之一有機聚合物（分為第一類型及第二類 型）形成於該發光晶片1〇之發光表面12上而製得，該有 機螢光層20之厚度較佳控制在5〇〇A〜5000A之間，亦可 視設計者之需求而決定其厚薄。作為有機螢光層材料的有 機聚合物係： 第一類型··三聚氰胺-磺醯胺-甲醛共聚物型 (Melamine-Sulphonamide-Formaldehyde CopolymerThe first light, the wavelength of the first light of the όhai is different from the wavelength of the first light, and the first light and the first light of the illuminating light source not absorbed by the organic luminescent layer are mixed in the encapsulation layer, and Forming a mixed light, the mixed light is condensed and refracted by the nano-sized crystal grains contained in the encapsulating layer, and can be more uniformly mixed, thereby emitting uniformity and color rendering property from the encapsulating layer. Good white light, and it is also worth noting that the organic polymer system as the organic fluorescent layer material: the first type of melamine-Sulphonamide-formaldehyde copolymer type (Melamine-Sulphonamide-Formaldehyde Copolymer Type), Or 8 I26〇8〇i second type·monoaminodiazine-gland-formaldehyde-sulfonamide type (Aminotriazine-Urea-Formaldehyde- Sulphonamide Type) The organic fluorescent layer is encapsulated in a concentrated light In the encapsulating layer of the refracting light characteristic, the illuminating device can further emit mixed light (ie, white light) excellent in uniformity of uniformity and color rendering. The above description of the present invention and other objects, features, aspects and advantages of the present invention will become more apparent. [Embodiment] A preferred embodiment of the present invention will be described in more detail with reference to the drawings. The first figure is a cross-sectional view of a white light emitting device of the present invention. As shown in the first figure, the illuminating wafer 10 functions as an illuminating light source, and emits light having a wavelength of 340 nm to 495 nm, which includes ultraviolet light, violet light, illuminating light or green light. The organic phosphor layer 20 is one of the following organic polymers (by the first type) by coating, screen printing, lithography, sputtering, spotting, casting, lamination or vacuum evaporation. And the second type is formed on the light-emitting surface 12 of the light-emitting chip 1 , and the thickness of the organic phosphor layer 20 is preferably controlled between 5 〇〇A and 5000 A, which is also determined by the designer's needs. Its thickness. Organic polymer as organic phosphor layer material: Type 1 · Melamine-Sulphonamide-Formaldehyde Copolymer
Type)，或是 9 Γ260801 第二類型：單胺基三嗪-脲-甲醛-磺醯胺共縮合物型 (Aminotriazine-Urea-Formaldehyde- SulphonamideType), or 9 Γ 260801 Second type: monoaminotriazine-urea-formaldehyde-sulfonamide co-condensate type (Aminotriazine-Urea-Formaldehyde- Sulphonamide
Type)。 該白光發光裝置之封裝層4〇係由透明樹脂42與複數個 奈米級晶粒44彼此均勻地混合而成。該些奈米級晶粒 44係為透明或半透明體，其顆粒大小被控制在100奈米 以下，且具有聚光及折射光之物理特性。該些奈米級晶 粒44在顯微鏡下觀察係呈顆粒狀，但在人肉眼觀察下係 呈粉末狀。該發光裝置能從該封裝層4〇向外發射出均勻 性及演色性均佳的白光36。 第二圖係本發明之流程方塊圖，而第三圖係本發明 之封裝層局部放大的截面圖。如第二圖及第三圖所示， 當光源15發出340nm〜495 nm波長的第一光時，該第一 光激發有機螢光層20而使該有機螢光層發出與第一光不 同的第二光30’該第二光30的波長係介於53〇nm〜58〇nm 之間，被疋義為黃綠〜黃橙色光，其中，該有機螢光層2〇 係藉由塗佈、網版印刷、平版印刷、濺鍍、點注、澆注、 貼β或真空瘵鍵等方法將上述之有機聚合物形成於該發光 晶片10之發光表面12上而製得。由於該有機螢光層2〇 係經冷卻與定型而形成於發光晶片10之發光表面12上， 故其均祕及附著性冑極佳，因此能提高發光強度及發光 均勻性。紐該第二光3〇再與未被該有機螢光層吸收 的第-光相混合而得-混合光35，該混合物35被定義為 白光，該混合光35投射於透明封裝層4〇時，由於封裝層 4〇中均勻分佈著若干數量比率的透明奈米級晶粒糾，而該 10 1260801 m級晶粒44財聚光及·光的倾 合光35在透明封裝層4_混合Type). The encapsulating layer 4 of the white light-emitting device is formed by uniformly mixing the transparent resin 42 and a plurality of nano-sized crystal grains 44 with each other. The nano-grain 44 is a transparent or translucent body whose particle size is controlled to be less than 100 nm and has physical properties of condensing and refracting light. The nano-sized crystal grains 44 were observed to be in the form of particles under a microscope, but were powdery when observed by the human eye. The light-emitting device can emit white light 36 having uniform uniformity and color rendering properties from the package layer 4''. The second drawing is a block diagram of the present invention, and the third drawing is a partially enlarged sectional view of the encapsulating layer of the present invention. As shown in the second and third figures, when the light source 15 emits the first light having a wavelength of 340 nm to 495 nm, the first light excites the organic phosphor layer 20 to cause the organic phosphor layer to emit a different light than the first light. The second light 30' has a wavelength of between 53 〇 nm and 58 〇 nm and is yellow-green to yellow-orange light, wherein the organic fluorescent layer 2 is coated by coating. The above-mentioned organic polymer is formed on the light-emitting surface 12 of the light-emitting wafer 10 by a method such as screen printing, lithography, sputtering, spotting, casting, labeling or vacuum bonding. Since the organic fluorescent layer 2 is formed on the light-emitting surface 12 of the light-emitting wafer 10 by cooling and shaping, the uniformity and adhesion are excellent, so that the light-emitting intensity and the uniformity of light emission can be improved. The second light 3 混合 is mixed with the first light that is not absorbed by the organic phosphor layer to obtain a mixed light 35. The mixture 35 is defined as white light, and the mixed light 35 is projected on the transparent encapsulation layer 4 Because a certain number of transparent nano-scale grain corrections are evenly distributed in the encapsulation layer 4, the 10 1260801 m-level crystal grain condensing light and the light tilting light 35 are mixed in the transparent encapsulation layer 4_
透明封U 4〇外’ jg此能得到均勻性、演色性均極佳且發 光強度更強的白光36 ’其中，該封裝層㈣由透明樹脂 42及奈米級晶粒44所組成，而混合比率最佳為9〇%透 明樹脂42對10 %透明或半透明的奈米級晶粒私。該些 透明或半透_奈米級晶粒44細各獅絲現，· 呈圓形、橢圓形、多角形、或不規則形狀的微粒。 對所有4習此技^•者而言’本發明明顯地可以作出 多種修改及變化而不脫離本發明的精神和。因此， 本發明包括·修改及變化，且其諸包括在下附之申 凊專利範圍及其均等者中。 1260801 【圖式簡單說明】 第一圖係本發明之白光發光裝置的截面圖； 第二圖係本發明之流程方塊圖；以及 第三圖係本發明之封裝層局部放大的截面圖。 【主要元件符號說明】 ❿ 10 發光晶片 12 發光表面 15 光源 20 有機螢光層 30 第二光 35 混合光 36 白光 40 封裝層 42 透明樹脂 44 奈米級晶粒 12The transparent seal U 4 ' 'jg can obtain white light 36 which is excellent in uniformity and color rendering and more luminous intensity. The encapsulating layer (4) is composed of transparent resin 42 and nano-sized crystal grains 44, and is mixed. The ratio is preferably 9% by weight of the transparent resin 42 to 10% transparent or translucent nano-grain. The transparent or semi-transparent crystals of the nano-grain 44 are thin, oval, elliptical, polygonal, or irregularly shaped. It will be apparent to those skilled in the art that various modifications and changes may be made without departing from the spirit of the invention. Accordingly, the present invention includes the modifications and variations, and the invention is included in the scope of the appended claims and their equivalents. 1260801 BRIEF DESCRIPTION OF THE DRAWINGS The first drawing is a cross-sectional view of a white light emitting device of the present invention; the second drawing is a block diagram of the present invention; and the third drawing is a partially enlarged cross-sectional view of the encapsulating layer of the present invention. [Main component symbol description] ❿ 10 illuminating chip 12 illuminating surface 15 light source 20 organic luminescent layer 30 second light 35 mixed light 36 white light 40 encapsulation layer 42 transparent resin 44 nano-grain 12