五、新型說明： 【新型所屬之技術領域】 本創作係關於一種發光二極體元件，特指一種具有較 佳演色性的白光二極體元件。 【先前技術】 現有技術中的白光發光二極體，皆以混光的方式來到 發出白光的目的’其方式主要有： 一.使用可發出紅、藍、綠光的發光二極體以混光的方 式來發出白光’此方法之優點在於光色為可調整，但由於 各光色的發光二極體的驅動電壓不同，因此必須使用三套 控制電路而有成本較高之缺點，且一但其中一發光二極體 壽命耗盡或故障，則剩餘兩發光二極體便無法混合出白 光。使用此類技術的有如中華民國發明專利公告第13〇948〇 號「LED封裝結構」揭露的—種提高演色性之led封裝結 構，且該結構在封裝材料中進一步混入黃色螢光粉，使LED 之白光除了以三色混光產生之外，其中部份藍光更激發黃 色螢光粉產生黃光’進而與其混合形成白光。結合此二效 應使發光二極體之發光效率更為提升、演色性更高。然而， 該案的發光單元仍是由3個發光二極體組合而成 極體成本相對較高，也因此而有較高的功率消耗 ，發光二 量’並據此有衍生的散熱問題。V. New description: [New technical field] This creation is about a light-emitting diode component, especially a white light diode component with better color rendering. [Prior Art] The white light emitting diodes of the prior art all come to the purpose of emitting white light by means of light mixing. The main methods are as follows: 1. Using a light emitting diode capable of emitting red, blue and green light to mix The light method emits white light. The advantage of this method is that the light color is adjustable. However, since the driving voltages of the light-emitting diodes of the respective light colors are different, it is necessary to use three sets of control circuits, which has the disadvantage of high cost, and However, if one of the light-emitting diodes is exhausted or faulty, the remaining two light-emitting diodes cannot be mixed with white light. Such a technology is disclosed in the "LED package structure" of the Republic of China Invention Patent Publication No. 13〇948, "LED package structure", which improves the color rendering of the LED package structure, and the structure further incorporates yellow phosphor powder in the package material to make the LED In addition to the three-color mixed light, some of the blue light excites the yellow fluorescent powder to produce yellow light, which in turn is mixed with it to form white light. In combination with these two effects, the luminous efficiency of the light-emitting diode is further improved and the color rendering property is higher. However, the light-emitting unit of the case is still composed of three light-emitting diodes, and the cost of the polar body is relatively high, and therefore, the power consumption is high, and the light-emitting quantity is deduced accordingly.
所產生 以及發熱 接不同之光源 一藍光以及二 3 M380580 的白光會有色調與亮度分散之問題，因此不易產生真正所 需要的白光。且由於此種設計必須以三組電路分別來控制 三種晶片的發光量，其整體驅動的電路設計將因此而較為 複雜。 二·使用可發出藍光之發光二極體，搭配使用一可發出 黃光之發光二極體，或者搭配使用可為該藍光發光二極體 激發而發出黃光的螢光粉，藉由藍光與黃光混合成白光， 相較於前述方式雖具有成本上的優勢，但有光譜上的涵蓋 範圍較窄、演色性低，亦即白光的光色失真之缺點。例如 美國專利第6,614，179號所揭露以發光二極體產生藍光， 該藍光會激發磷光劑而產生黃光，兩種光源混色後就形成 白光’其中藍光波長為420nm〜490nm，而構光劑係由 { [(Y，Gd)Sm](AlGa)0:Ce }所組成，但此方式所產生白光 對於物體真實色彩的表現較差，亦即色溫度（c〇1〇r temperature)較高而致使演色性（color rendering index) 不佳β 三.使用可發出紫外光的發光二極體，搭配可受該紫外 光發光二極體激發而分別發出紅、綠與藍色的三種螢光 粉，藉由紅、綠與藍色混合成白光，此方法之優點在於白 光光色均勻’演色性較前述方式為佳，但由於該紫外光二 極體晶片之成本較高，導致該方式製作之白光發光二極體 亦有成本較高之缺點。 【新型内容】 有鑑於上述現有技術的白光發光二極體，光色均勻、 4 M380580 演色性佳者製作成本較高，而製作成本較低者又難以獲得 良好的演色性，本創作期望能提供一種兼具演色性佳、製 作成本低廉、低功率消耗且驅動電路設計較簡單之優點的 白光發光二極體結構。 為達成上述創作目的，本創作所使用的技術手段在於 提供一種白光二極體元件，其包含有： 一基座’其自一側面内凹形成有一晶杯； 一藍光二極體晶片，設置於該晶杯内； 一包覆材料’其設置於所述晶杯内且包覆所述藍光二 極體晶片’包覆材料内包含有可受藍光二極體晶片之光激 發而發出綠光之綠光螢光粉； 複數紅光二極體晶片，其設置於所述晶杯内，且環繞 於所述藍光二極體晶片的周圍； 一封裝材料’其設置於所述晶杯内且包覆所述包覆材 料及紅光二極體晶片。 本創作之白光二極體元件，係藉由藍光二極體晶片之 光激發綠光螢光粉使其發出綠光，該綠光與紅光二極體晶 片所發出之紅光以及未被螢光粉吸收之藍光混合即成為白 光’由於僅使用兩種光色的發光二極體晶片，因此其製作 成本可較前述使用三種光色的發光二極體晶片所製成的白 光二極體的成本低，並且由於白光係由紅、綠及藍光混合 而成’因此相較於現有技術中僅以藍光及黃光混合為白光 的白光二極體元件，本創作可具有較佳的演色性。 【實施方式】 參見第一圖所示，本創作之白光二極體元件，於第一 5 M380580 實施例中包含有一基座（ίο)、一藍光二極體晶片（20)、一包 覆材料（30)、複數紅光二極體晶片（4〇)、一封裝材料（50)， 其中： 該基座（10)自一側面内凹形成有一晶杯（11)，晶杯（11) 的内壁面可鍍有反射層（圖中未示）以反射光線； 該藍光二極體晶片（20)設置於所述基座（10)的晶杯（11) 内；該包覆材料（30)設置於所述基座（1〇)的晶杯（11)内，且 包覆所述藍光二極體晶片（20) ’包覆材料（30)内包含有可受 鲁 藍光二極體晶片（20)之光激發而發出綠光之綠光螢光粉 (31)，該綠光螢光粉（31)之材料乃屬現有技術，其例如可為 矽酸鹽類、氧氮化合物及其衍生物或者硫化鋅及其衍生物。 該些紅光二極體晶片（40)設置於所述基座（丨0)的晶杯 (11)内，且環繞於所述藍光二極體晶片（20)的周圍； 該封裝材料（50)設置於所述基座（1〇)的晶杯（π)内且包 覆所述包覆材料（30)及紅光二極體晶片（40)。 參見第二圖所示，於本創作第二實施例中，所述包覆 材料（30 A)亦可同時包覆藍光二極體晶片（2〇)及紅光二極體 晶片（40)。 本創作之白光二極體元件運作時，由藍光二極體晶片 (20)所發出之光將會激發包覆材料中的綠光螢光粉（31)使其 發出綠光，該綠光與紅光二極體晶片（40)所發出之紅光以及 未被綠光螢光粉（3 1)吸收之藍光混合即成為白光，而由於本 創作僅使用藍光及綠光發光二極體晶片，因此其晶片成本、 消耗功率皆較現有技術中使用三種光色的發光二極體晶片 所製成的白光二極體來的低，且驅動電路設計也較簡單， 6 M380580 並且由於本創作之白光二極體元件所發出的白光係由红、 綠及藍光混合而成’因此相較於現有技術中僅以藍光及黃 光混合為白光的白光二極體元件，本創作可具有較佳的演 色性，是以本創作確實同時兼具成本低以及演色性佳之優 點0 另參見第三圖所示，於本創作第三實施例中，所述包 覆材料（30B)中係進一步包含有黃光螢光粉（32)，其在受藍 光二極體晶片（20)之光激發可發出黃光並與藍光混合成白 鲁 光，是以本實施例可具有更佳的演色性，黃光螢光粉（32) 之材料乃屬現有技術，其例如可為矽酸鹽類、氧氮化合物 及其衍生物或者硫化鋅及其衍生物。 【圖式簡單說明】 第一圖為本創作第一實施例之剖視圖。 第二圖為本創作第二實施例之剖視圖。 第三圖為本創作第三實施例之剖視圖。 •【主要元件符號說明】 (1〇)基座 （11)晶杯 (20)藍光二極體晶片 (3〇)(3〇A)(3〇B)包覆材料（31)綠光螢光粉 (32)黃光螢光粉 (40)紅光二極體晶片 (50)封裝材料 7The resulting light source and the different light sources, a blue light and the white light of the 2 3 M380580, have problems of color tone and brightness dispersion, so that it is not easy to produce the white light that is really needed. And because this design must control the amount of luminescence of the three types of wafers by three sets of circuits, the overall drive circuit design will be complicated. 2. Use a light-emitting diode that emits blue light, use a light-emitting diode that emits yellow light, or use a fluorescent powder that emits yellow light for excitation by the blue light-emitting diode, with blue light and yellow light. Mixing into white light has a cost advantage over the foregoing method, but has a narrow coverage in the spectrum and a low color rendering property, that is, a shortcoming of light color distortion of white light. For example, U.S. Patent No. 6,614,179 discloses the generation of blue light by a light-emitting diode which excites a phosphor to generate yellow light. When the two light sources are mixed, white light is formed, wherein the blue light wavelength is 420 nm to 490 nm, and the light-blocking agent It is composed of { [(Y,Gd)Sm](AlGa)0:Ce }, but the white light produced by this method has a poor performance on the true color of the object, that is, the color temperature (c〇1〇r temperature) is high. Resulting in poor color rendering index β. Using a light-emitting diode that emits ultraviolet light, with three types of phosphor powder that can be excited by the ultraviolet light-emitting diode to emit red, green and blue, respectively. The effect of this method is that the color of the white light is uniform. Diodes also have the disadvantage of higher cost. [New content] In view of the above-mentioned prior art white light emitting diodes, the light color is uniform, the color rendering of 4 M380580 is relatively high, and the production cost is low, and it is difficult to obtain good color rendering. The utility model relates to a white light emitting diode structure which has the advantages of good color rendering, low production cost, low power consumption and simple design of a driving circuit. In order to achieve the above-mentioned creative purposes, the technical means used in the present invention is to provide a white light diode element comprising: a susceptor having a crystal cup recessed from a side surface; a blue LED chip disposed on Inside the crystal cup; a cladding material disposed in the crystal cup and covering the blue diode wafer's cladding material comprises a light that is excited by the light of the blue light diode chip to emit green light a green fluorescent powder; a plurality of red photodiode wafers disposed in the crystal cup and surrounding the periphery of the blue LED wafer; a packaging material 'which is disposed in the crystal cup and packaged The cladding material and the red diode wafer are covered. The white light diode element of the present invention emits green light by exciting the green fluorescent powder by the light of the blue diode chip, and the red light emitted by the green light and the red light diode chip is not fired. The blue light mixing absorbed by the light powder becomes white light. Since only two light color LED chips are used, the manufacturing cost can be compared with the white light diode made of the above three light color LED chips. The cost is low, and since the white light is mixed by red, green and blue light, the present invention can have better color rendering than the white light diode element which is only white light mixed with blue light and yellow light in the prior art. [Embodiment] As shown in the first figure, the white light diode component of the present invention includes a susceptor ( ίο), a blue diode chip (20), and a cladding material in the first embodiment of the 5 M380580. (30), a plurality of red diode chips (4 turns), a package material (50), wherein: the base (10) is recessed from a side surface to form a crystal cup (11), the crystal cup (11) The inner wall surface may be plated with a reflective layer (not shown) to reflect light; the blue diode chip (20) is disposed in the crystal cup (11) of the base (10); the cladding material (30) Provided in the crystal cup (11) of the pedestal (1 〇), and covering the blue diode wafer (20), the covering material (30) contains a tunable blue light diode chip ( 20) The green light fluorescent powder (31) which is excited by the light and emits green light. The material of the green fluorescent powder (31) is a prior art, and may be, for example, a phthalate, an oxynitride and a derivative thereof. Or zinc sulfide and its derivatives. The red diode chips (40) are disposed in the crystal cup (11) of the susceptor (丨0) and surround the periphery of the blue diode wafer (20); the packaging material (50) Provided in the crystal cup (π) of the susceptor (1 〇) and covering the cladding material (30) and the red diode wafer (40). Referring to the second embodiment, in the second embodiment of the present invention, the cladding material (30 A) may simultaneously cover the blue diode chip (2 〇) and the red diode chip (40). When the white light diode device of the present invention operates, the light emitted by the blue diode chip (20) will excite the green phosphor (31) in the cladding material to emit green light, which is combined with green light and The red light emitted by the red diode chip (40) and the blue light not absorbed by the green phosphor powder (3 1) become white light, and since the present invention uses only blue and green light emitting diode chips, Therefore, the cost and power consumption of the wafer are lower than those of the white light diode made of the three light color LED chips in the prior art, and the driving circuit design is also relatively simple, 6 M380580 and due to the white light of the creation. The white light emitted by the diode element is a mixture of red, green and blue light. Therefore, compared with the white light diode element which is only white light mixed with blue light and yellow light in the prior art, the present invention can have better color rendering. The nature of the present invention is that the present invention has both low cost and good color rendering. Referring to the third figure, in the third embodiment of the present invention, the covering material (30B) further includes yellow fluorescent light. Powder (32), which is subject to The photoexcitation of the photodiode wafer (20) can emit yellow light and be mixed with blue light to form white Luguang. This embodiment can have better color rendering properties. The material of the yellow fluorescent powder (32) is prior art, for example, They are phthalates, oxynitrides and their derivatives or zinc sulphide and its derivatives. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a cross-sectional view of a first embodiment of the creation. The second drawing is a cross-sectional view of the second embodiment of the creation. The third figure is a cross-sectional view of the third embodiment of the creation. • [Main component symbol description] (1〇) pedestal (11) crystal cup (20) blue diode chip (3〇) (3〇A) (3〇B) cladding material (31) green fluorescent Powder (32) Yellow Phosphor (40) Red Diode Wafer (50) Packaging Material 7