1314368 九、發明說明 【發明所屬之技術領域】 本發明是有關於一種白光發朵驻里 尤％先裝置，且特別是有關於一 種可產生高亮度及高演色性之白弁 曰尤的發光二極體裝置。 【先前技術】 目前，白光發光二極體的製作方式主要有二種，其中一 種是藍光光源加上黃色螢弁輪， . 京尤如另一種則為紫外光光源加上 數種螢光粉。在採用藍光光源鱼龙 〜疋你興汽先螢光粉的方式中，以藍 光光源激發黃光螢光粉，而轳本偽〜4々 " 而ι先與所激發出之黃光混合後即 生白I目前之黃色螢光粉之材料通常係採減石權石 ( AG)。雖然」依此方式所製造之白光發光二極體所產生之白 光之效率較尚，但缺點是演色性差。 在採用紫外光光源與數種勞光粉的方式中，係以紫外光 數種榮光粉’例如藍光榮光粉、紅光榮光粉以及黃 Ϊ = Γ分別產生藍光、紅光與黃光，這些激發產生之 先經合後即可產生白 白先。雖然，依此種方式所製造之白光 毛光一極體具有較前 、 方式佳之演色性，但這些螢光粉中一 般3有硫等不穩定之元音_ — 一、>、 I ’在尚溫咼濕下極易裂解，且紫外 光之激發效率不伟，介 ^ 亦可能會破壞發光磊晶結構，因而使發 光二極體元件存在有哞夕 卉夕無法克服之劣化問題。因此，此種 方式所製造之白光發本— 赞先一極體的裴置與亮度穩定性差。 【發明内容】 5 1314368 有鑑於習知白光發光裝置之種種不足，因此本發明之目 的j疋在提供一種白光發光裝置，係以藍光光源激發由氮氧 化《物所組成之綠色螢光粉與紅色螢光粉，而藍光與經激發 而產生之綠光與黃紅光混合後即可獲得白光。由於本發明之 紅色螢光粉與綠色螢光粉均係由氮元素與氧元素所組成，因 此攻兩種螢光粉在高溫高濕下均可穩定存在，進而可有效提 问毛光攻置之穩定度，並提升裝置之亮度的安定性。 本發明之另一目的是在提供一種白光發光裝置，係利用 藍光光源激發，綠色螢光粉與紅色螢光粉，以分別激發出綠光 與黃紅光。由於所採用之綠色螢光粉與紅色螢光粉經激發後 所發之光的波長涵蓋範圍廣，因此經由混合不同色光比例所 形成之白光具有極佳之演色性。 根據本發明之上述目的，提出一種白光發光裝置，至少 包括：一發光元件，可發出具有第一放射波長之光；一第一 螢光材料’覆設在發光元件上，其卡此第—螢光材料經由發 光元件激發後發出具有第二放射波長之光，且此第一螢光^ 料係由氮氧化合物所組成；以及一第二螢光材料，覆設在發 光兀件上，其中此第二螢光材料經由發光元件激發後發出具 有第三放射波長之光，此第二螢光材料係由氮氧化合物所•且 成，且第-放射波長之光、第一放射波長之光、以及第三放 射波長之光混成白光。 依照本發明-較佳實施例’上述具有第—放射波長之光 為藍光，且第一放射波長介於約360nm至約48〇nm之間；具 有第二放射波長之光為黃紅光，且第二放射波長介於約6i〇nm 1314368 至約63〇nm之間；以及具有第三放射波長之光為綠光，且第 三放射波長介於約520nm至約540nm之間。 利用藍光光源來激發氮氧化合物所組成之綠色螢光粉與 紅色螢光粉’而使光源與激發出之光混成白光，因此可調和 各色光之比例’而獲得高演色 用之氮氧化合物螢光粉之穩定 裂解，因此白光發光裝置具有 兩0 性之白光。而且’本發明所採 性高’不會在高溫高濕下產生 極佳之安定性，使亮度穩定度 【實施方式】 本發明揭露一種白光發光裝置’係利用藍光光源來激發 至少-種II氧化合物#光粉，而使光源與激發光混成白光， 獲得高演色性之白光’並大幅改善裝置之穩定度。為 了使本發明之敘述更加詳盡輿拿供 第1圖至第4圖之圖示。、 …、、下列描述並配合 :參照第i圖’其繪示依照本發明一較佳實施例的一種 二置之剖面示意圖。本發明之白光發光裝“。主 X凡件104與包覆於其上之封裝膠冑108所構成， 其中封裝膠體108具有第一螢井於 直由,,, 螢先粉與第二螢光粉分散佈設於 其中。在本發明中，第一螢光粉金 、 a物& & ή 〃第一螢光粉均係由氮氧化 α物所組成…般而言’白光發光裝i 座102,以利發光元件1〇4進行 八、、八载 虹处 拉， 了裝封裝承載座102通常呈 杯狀，而發光元件104則係設置在封 王 底部上’且發光元# 104可依 ^ 之開口的 1千之電極導通形式而可透過 13143681314368 IX. INSTRUCTIONS OF THE INVENTION [Technical Field to Be Invented by the Invention] The present invention relates to a white light-emitting device, and particularly relates to a white light-emitting device capable of producing high brightness and high color rendering. Polar body device. [Prior Art] At present, there are two main ways of making white light-emitting diodes, one of which is a blue light source and a yellow fluorescing wheel. The other is a kind of phosphor powder added to the ultraviolet light source. In the way of using the blue light source fish dragon ~ 疋 兴 先 先 first fluorescent powder, the blue light source is used to excite the yellow light fluorescent powder, and the 轳 伪 〜 々 々 々 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而 而The material of the current yellow fluorescent powder of white I is usually a stone-reducing stone (AG). Although the white light produced by the white light-emitting diode manufactured in this manner is more efficient, the disadvantage is that the color rendering property is poor. In the way of using ultraviolet light source and several kinds of plasters, the ultraviolet light glory powders such as blue glory powder, red glory powder and jaundice = Γ produce blue light, red light and yellow light respectively. After the first combination, the white and white can be produced first. Although the white light-emitting one body manufactured in this way has better color rendering properties than the former and the mode, these fluorescent powders generally have unstable vowels such as sulfur, which are sulphur and other __, >, I' It is easy to crack under temperature and humidity, and the excitation efficiency of ultraviolet light is not good. It may also destroy the luminescent epitaxial structure, so that there is a problem that the light-emitting diode element can not be overcome by the eve. Therefore, the white light produced by this method is superior to the brightness and stability of the first pole. SUMMARY OF THE INVENTION 5 1314368 In view of the various deficiencies of the conventional white light emitting device, the object of the present invention is to provide a white light emitting device which emits a green fluorescent powder composed of nitrogen oxides and a red light source by a blue light source. Fluorescent powder, while blue light is mixed with the green light and yellow red light that is excited to obtain white light. Since the red fluorescent powder and the green fluorescent powder of the invention are composed of nitrogen element and oxygen element, the two types of fluorescent powder can be stably existed under high temperature and high humidity, and thus the problem of the hair attack can be effectively questioned. Stability and enhance the stability of the brightness of the device. Another object of the present invention is to provide a white light emitting device which utilizes a blue light source to excite green phosphor powder and red phosphor powder to excite green light and yellow red light, respectively. Since the wavelengths of light emitted by the green phosphor and the red phosphor after excitation are wide, the white light formed by mixing different color ratios has excellent color rendering. According to the above object of the present invention, a white light emitting device is provided, comprising at least: a light emitting element that emits light having a first emission wavelength; and a first fluorescent material 'overlaid on the light emitting element, the card is in the first The light material is excited by the light emitting element to emit light having a second emission wavelength, and the first fluorescent material is composed of an oxynitride; and a second fluorescent material is coated on the light emitting element, wherein The second fluorescent material is excited by the light-emitting element to emit light having a third emission wavelength, and the second fluorescent material is formed by an oxynitride, and the first-radiation wavelength light, the first emission wavelength light, And the light of the third emission wavelength is mixed into white light. According to the present invention - the preferred embodiment, the light having the first emission wavelength is blue light, and the first emission wavelength is between about 360 nm and about 48 〇 nm; the light having the second emission wavelength is yellow red light, and the second The emission wavelength is between about 6 i 〇 nm 1314368 to about 63 〇 nm; and the light having the third emission wavelength is green light, and the third emission wavelength is between about 520 nm to about 540 nm. The blue light source is used to excite the green fluorescent powder and the red fluorescent powder composed of nitrogen oxides, and the light source and the excited light are mixed into white light, so that the ratio of the respective colors of light can be adjusted to obtain the high-performance nitrogen oxide compound The light powder is stably cracked, so the white light emitting device has two white light. Moreover, 'the high purity of the present invention' does not produce excellent stability under high temperature and high humidity, and the brightness is stable. [Embodiment] The present invention discloses a white light emitting device that utilizes a blue light source to excite at least one species of oxygen. Compound #光粉, the light source and the excitation light are mixed into white light to obtain high color rendering white light' and the stability of the device is greatly improved. In order to make the description of the present invention more detailed, the illustrations of Figs. 1 to 4 are provided. The following description and cooperation: Referring to Figure i, there is shown a cross-sectional view of a two-position according to a preferred embodiment of the present invention. The white light emitting device of the present invention comprises: a main X-shaped member 104 and an encapsulating capsule 108 coated thereon, wherein the encapsulating colloid 108 has a first sintering hole, and a first fluorescent powder and a second fluorescent material The powder dispersion is disposed therein. In the present invention, the first phosphor powder, a substance &&& ή 〃 first phosphor powder is composed of nitrogen oxide alpha species... 102, taking the illuminating element 1 〇 4 for eight, eight-loaded rainbow pull, the package carrier 102 is generally in the shape of a cup, and the light-emitting element 104 is placed on the bottom of the king's and the illuminating element # 104 can be ^ The opening of the thousand electrodes is conductive and can pass through 1314368
至）一導線1 〇 6斑射1ΛL -、封裝承載座102電性連接。 則填入封裝承載座⑽之開口中並覆蓋在發光元 發光元件104較佳可為發光二極體，且此 。 係由至少一半導體材料所組成’其中此 ：件1。4 =之多元複合化合物。在本賴，第1=;:: 銪金屬活化之氮氧化合物，且此第一螢光材料之化風式：用 如為（Y，M)(m+/va| + )Si(i2 m n) Ai(m+n)QnNi6 ^ ;二例 了 ί此金屬元素M較佳可術a)或鋇㈣。第 :物:T(Ce)及/或卿土金屬活化之氮氧化 (γ，Μ *第-瑩光材料之化學式可例如為 >V/vai + )Si(12.m-n) A1(m+n)〇nNi6 n:Ces，Tbt，i 〇素：…-金屬元素，較佳例糊元素或鎖元= u<n<2.0,2.0<m+n<30,0I<s<0 5 0<t<01。 :本發明中’發光元件104所發出之光具有第一放射波 s A件104所發光之光可激發第一#光粉與第二勞光 4，而第一螢光粉與第二螢光粉經激發後會分別產生呈第二 L射f長之光以及具第三放射波長之光。在本白光發光裝置 ，發光元件104所發出之具第一放射波長的光、第二放 /長之光、以及第三放射波長之光經混合後可產生白光。 外―在本發明之一較佳實施例中，發光元件104係發出藍光， π Ψ f光柘經激發後發出黃紅光，而第二螢光粉經激發後則 、泰光。上述之第一放射波長較佳介於約360nm至約480nm 之間，& — 弟—螢光粉可文激發之光的波長則介於約360nnl至 8 1314368 約48Onm之間，第二勞光粉可受激發 又戲知^尤的波長介於約360nm 至約48Onm之間。在本實施例中’第一 弟螢先粉由藍光激發後 之光S日'如第2圖所示，且签-恶伞 _ 第一螢先如經藍光激發後之光譜如 _ 所示，其中第—螢光粉經激發後發出之光所具有的第 —放射波長介於約560nm至約640nm夕pq 吐 之間，而第二螢光粉經 激發後發出之光所且右的楚-& &e 八有的第二放射波長介於約5〇〇nm至約 570nm之間。在本發明巾， 月中第一螢先粉經激發後所產生光之 效率較佳之放射波長位f 置η於、、句600nm至約640nm之間，而 效率更佳之放射波長位置介於約61〇親至約“Ο·之間。另 :方面’第二螢光粉經激發後所產生光之效率較佳之放射波 長位置介於約5 1 〇nm 5奶ς ζ Λ Βθ 力55〇ηΠ1之間，而效率更佳之放射波 長位置介於約52〇nm至約54〇nm之間。 發光元件104所發出之g f 墙 _ , ^ 赞出之藍先、第一螢光粉經藍光光源激 發後所產生之黃紅光、 铱_ Λ及第一螢光粉經藍光光源激發後所 產生之綠光混合後可產头 生白先’此白光發光裝置之混光光譜 如第4圖所示。 在本’χ月t利用發光元件所發出之藍光來激發紅色螢 :粉與綠色營光粉後，藍光與所激發出之黃紅光與綠光所混 之白先的平均演色評價指數(R A )可達9〇以上。此外，將 之白光發光裝置應用於背光源中時，可有效改善顯示 Γ々飽和度’提向達美國國家電視系統委員會（NTSC)之規 乾值的約44%以上。, ^ 口此’本發明之白光發光裝置可產生演 色性極佳之白光。 由上述本發明較佳實施例可知，本發明之一優點就是因 1314368 為本發明之白光發光裝置係以藍光光源激發由氮氧化合物所 組成之綠色螢光粉與红色螢光粉，而藍光與經激發而產生之 綠光與黃紅光混合後即可獲得白光。由於本發明所採用之螢 光粉均係由氮元素與氧元素所組成，因此這些螢光粉在高溫 尚濕下均可穩定存在，進而可有效提高發光裝置之穩定度， 並可提升裝置之亮度的安定性。 由上述本發明較佳實施例可知，本發明之另一優點就是 因為本發明之白光發光裝置係利用藍光光源激發綠色螢光粉 與紅色螢光粉’以分別激發出綠光與黃紅光。由於所採用之 綠色螢光粉與紅色螢光粉經激發後所發之光的波長涵蓋範圍 廣口此本發明之裝置經由調合不同色光比例所產生之白光 具有相當優異之演色性。 雖然本發明已以一較佳實施例揭露如上，然其並非用以To a wire 1 〇 6 spot 1 Λ L -, the package carrier 102 is electrically connected. Then, it is filled in the opening of the package carrier (10) and covered in the light-emitting element. The light-emitting element 104 is preferably a light-emitting diode, and this is. It is composed of at least one semiconductor material, wherein: the component is 1.4. In Ben Lai, the first =;:: bismuth metal activated oxynitride, and the first fluorescent material of the genre: use (Y, M) (m + / va | + ) Si (i2 mn) Ai(m+n)QnNi6 ^ ; two cases ί This metal element M is preferably a) or 钡 (4). The first object: T (Ce) and/or the oxidizing nitrogen of the activated earth metal (γ, Μ * the chemical formula of the first-fluorescent material can be, for example, > V / vai + ) Si (12.mn) A1 (m + n) 〇nNi6 n: Ces, Tbt, i 〇:: - metal element, preferably paste element or lock element = u < n < 2.0, 2.0 < m + n < 30, 0I < s < 0 5 0< ;t<01. In the present invention, the light emitted by the light-emitting element 104 has a first radiation wave. The light emitted by the A element 104 can excite the first #光粉 and the second worklight 4, and the first phosphor powder and the second phosphor After the powder is excited, light having a second L-ray length and light having a third emission wavelength are respectively generated. In the white light emitting device, the light having the first emission wavelength, the second emitted/length light, and the third emission wavelength emitted by the light-emitting element 104 are mixed to generate white light. Further, in a preferred embodiment of the present invention, the light-emitting element 104 emits blue light, and the π Ψ f light ray emits yellow-red light after being excited, and the second fluorescent powder is excited and then illuminates. Preferably, the first radiation wavelength is between about 360 nm and about 480 nm, and the wavelength of the light excited by the phosphor powder is between about 360 nl and 8 1314368 and about 48 nm. The wavelength that can be excited and audible is between about 360 nm and about 48 Onm. In the present embodiment, 'the first light of the first fluorescent powder is excited by the blue light, the light S day' is as shown in FIG. 2, and the spectrum of the first and second fluorescent particles is excited by blue light, as shown by _, The light emitted by the first fluorescent powder has a first emission wavelength of between about 560 nm and about 640 nm, and the second fluorescent powder is excited by the light and the right is - &&e has a second emission wavelength between about 5 〇〇 nm and about 570 nm. In the towel of the present invention, the efficiency of the light generated by the first fluorescent powder in the middle of the month is preferably Δη, and the sentence is between 600 nm and about 640 nm, and the more efficient radiation wavelength position is about 61. 〇 〇 约 之间 之间 之间 另 另 另 另 另 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二 第二The more efficient radiation wavelength position is between about 52 〇 nm and about 54 〇 nm. The gf wall emitted by the illuminating element 104 _ , ^ The blue light is first, and the first fluorescent powder is excited by the blue light source. The resulting yellow-red light, 铱_Λ, and the green light produced by the first fluorescent powder after being excited by the blue light source can be mixed and produced. The mixed light spectrum of the white light emitting device is as shown in Fig. 4. 'χ月t uses the blue light emitted by the illuminating element to excite the red fluorescing: after the powder and the green camping powder, the average color rendering index (RA) of the white light mixed with the excited yellow-red and green light is up to 9 〇 Above. In addition, when the white light emitting device is applied to a backlight, there may be The improvement of the display Γ々 saturation degree is about 44% of the value of the National Television System Committee (NTSC). The white light illuminating device of the present invention can produce white light with excellent color rendering. According to a preferred embodiment of the present invention, one of the advantages of the present invention is that 1314368 is a white light emitting device of the present invention, which uses a blue light source to excite green phosphor powder and red phosphor powder composed of nitrogen oxides, and blue light and excited When the generated green light is mixed with the yellow red light, white light can be obtained. Since the phosphor powder used in the present invention is composed of nitrogen element and oxygen element, the phosphor powder can be stably existed under high temperature and humidity, and further The stability of the illuminating device can be effectively improved, and the brightness of the device can be improved. According to the preferred embodiment of the present invention, another advantage of the present invention is that the white light illuminating device of the present invention utilizes a blue light source to excite green fluorescing. Light powder and red phosphor powder' to excite green light and yellow red light respectively. The light emitted by the green fluorescent powder and red fluorescent powder after being excited The wavelength range of the device of the present invention has a relatively excellent color rendering property by white light generated by blending different color light ratios. Although the present invention has been disclosed above in a preferred embodiment, it is not used
【圖式簡單說明】[Simple description of the map]
第1圖係繪示依照本發明 裝置之剖面示意圖。 5 一較佳實施例的一種白光發光 光二極體裝置之光譜圖。 ^ 一較佳實施例的一種白光發光 二極體裝置之光譜圖。 第2圖係繪示依照本發明_ 裝置之黃紅光螢光粉封裝於發光 第3圖係繪示依照本發明. 裝置之綠光榮光粉封襄於發光二 1314368 第4圖係繪示依照本發明一較佳實施例的一種白光發光 裝置之光譜圖。 【主要元件符號說明】 1 00 :白光發光裝置 1 02 :封裝承載座 104 :發光元件 106 :導線 108 :封裝膠體BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic cross-sectional view showing a device in accordance with the present invention. A spectrogram of a white light emitting diode device of a preferred embodiment. A spectral diagram of a white light emitting diode device of a preferred embodiment. 2 is a yellow red fluorescent powder package according to the present invention. The third embodiment is shown in accordance with the present invention. The green light glory powder of the device is sealed on the light emitting diode 1314368. FIG. 4 is a diagram showing the present invention. A spectrogram of a white light emitting device of a preferred embodiment. [Description of main component symbols] 1 00 : White light emitting device 1 02 : Package carrier 104 : Light-emitting element 106 : Wire 108 : Package colloid
ππ