M318801 八、新型說明： 【新型所屬之技術領域】 本創作屬發光元件應用之技術領域，係關於一種經由紅與綠兩色螢光 粉被藍光發光二極體激發後封裝成之金色光發光二極體之應用方法（利用 螢光粉可被激發而發光之性質，搭配藍光發光二極體，而產生高顏色穩定 性之金色光），主要係將二種以上之螢光粉均勻混合於封裝發光二極體用之 環氧樹脂中，藉由螢光粉可被可見光藍光波段激發而發綠光之性質，及此 螢光粉咼穩定性之特性，再利用紅綠藍三波段發光，可製作出高顏色穩定 性之金色光發光二極體以供各種指示燈及室内外顯示看板之應用。 【先前技術】 照明對於人類生活之重要性與日遽增，不論是單純的光線需求，亦或 是各種應用上的光線指示，對於人類的生活皆有重要影響。早期的照明設 備不外乎是日光燈，鹵素燈，白熾燈泡等，而隨著科技的進步及產業的發 展’發光二極體具有省電，且不易發熱，使用壽命長之優點，並於全球 月b源危機的影響下’各國開始在思考如何節省能源，因發光二極體省電效 率較傳統光源節省85%且壽命較一般燈泡長，因此省能源的發光二極體用 在照明市場已逐漸取代掉上述的傳統燈源。在應用光源方面，目前一般指 示燈’已逐步由傳統燈泡汰換為發光二極體，但因為發光二極體為單波段 發光’顏色純度高，因此顏色種類較為固定，除非使用兩種發光波段以上 之顏色進行混光，否則指示燈或顯示看板之顏色會較為單調。而典型的解 決方式就是利用螢光粉可被激發並發出不同顏色光線之特性，配合原本的 激發光線’製作出含有兩發光波段之發光二極體，若可搭配兩種以上之螢 光粉，例如紅綠藍三原色，變可製作出三波長發光二極體，可產生出千變 萬化之顏色。因此使用氮化鎵藍色發光二極體搭配紅綠兩色之螢光粉之技 術曰漸受到重視，但因為習知之紅色及綠色螢光粉多有發光波長穩定性不 5 M318801 佳之缺陷，因此長時間使用或以大電流驅動時將會使得此發光二極體的發 光顏色受到改變，在應用上受到許多限制。若可尋找到發光波長穩定性較 高之螢光粉，即可解決因螢光粉不穩定而造成的發光顏色偏移的問題，使 得產品應用面將大為提昇。 【新型内容】 ^ 本創作之主要目的在提供一種發光二極體，藉著其可見光發光二極體發出 之藍光(430〜480nm)激發兩種以上的螢光粉，而發射出高顏色穩定性之金色光， 加以應用於各種指示燈或是室内外顯示看板，以取代傳統使用穩定性較差之螢 光粉之發光二極體，達到高顏色穩定性及新穎色彩之考量。 基於上述目的，本創作發光二極體使用SrGa2S4:Eu之綠色螢光粉，及CaS 之紅色螢光粉’並搭配可見光藍光之光源，進行封裝。如此一來，由於SrGa2S4:Eu 及CaS螢光粉其激發光譜落於可見光之藍光波段(如圖一），故搭配目前主流之高 功率藍光發光二極體光源(430nm-480nm)進行封裝，即可產生綠光及紅光波段， 加以調整綠光及紅光螢光粉之比例，便可調整發光之色度座標，因而產生金色光M318801 VIII. New description: [New technology field] This creation belongs to the technical field of light-emitting components application. It is a kind of golden light-emitting light packaged by red and green fluorescent powders excited by blue light-emitting diodes. The application method of the polar body (using the fluorescent powder to be excited and illuminating, combined with the blue light emitting diode to produce golden light with high color stability), mainly by uniformly mixing two or more kinds of fluorescent powder in the package In the epoxy resin for the light-emitting diode, the fluorescent powder can be excited by the visible light blue light band to emit green light, and the characteristics of the fluorescent powder 咼 stability, and then the red, green and blue three-band light can be used. Produce high-color stability gold light-emitting diodes for a variety of indicators and indoor and outdoor display kanban applications. [Prior Art] The importance of lighting for human life is increasing, whether it is pure light demand or light indication in various applications, which has an important impact on human life. Early lighting equipment was nothing more than fluorescent lamps, halogen lamps, incandescent bulbs, etc. With the advancement of technology and the development of the industry, 'light-emitting diodes have the advantages of power saving, non-heating, long service life, and global moon. Under the influence of the source crisis, countries began to think about how to save energy. Because the efficiency of light-emitting diodes is 85% lower than that of traditional light sources and the life span is longer than that of ordinary light bulbs, the energy-saving LEDs have gradually been used in the lighting market. Replace the traditional light source mentioned above. In terms of the application of light source, the current general indicator 'has gradually changed from a traditional light bulb to a light-emitting diode, but because the light-emitting diode has a single-band illumination, the color purity is high, so the color type is fixed unless two light-emitting bands are used. The above colors are mixed, otherwise the color of the indicator light or display kanban will be more monotonous. The typical solution is to use the characteristics that the phosphor powder can be excited and emit different colors of light, and the original excitation light can be used to produce a light-emitting diode with two light-emitting bands. If two or more kinds of phosphor powder can be used, For example, the three primary colors of red, green and blue can be used to produce a three-wavelength light-emitting diode, which can produce ever-changing colors. Therefore, the technology of using GaN blue light-emitting diodes with red and green phosphors has been paid more and more attention, but because the known red and green phosphors have many wavelength stability, the 5 M318801 is not good. Long-term use or driving at a large current will cause the color of the light-emitting diode to be changed, which is subject to many limitations in application. If the fluorescent powder with high luminous wavelength stability can be found, the problem of the color shift of the luminescent color caused by the instability of the fluorescent powder can be solved, and the application surface of the product will be greatly improved. [New content] ^ The main purpose of this creation is to provide a light-emitting diode that emits high-color stability by exciting two or more kinds of phosphors by blue light (430~480nm) emitted by its visible light-emitting diode. The golden light is applied to various indicator lights or indoor and outdoor display kanbans to replace the traditional use of fluorescent powder phosphors with poor stability to achieve high color stability and novel color considerations. Based on the above purpose, the present LED is packaged using a green phosphor of SrGa2S4:Eu and a red phosphor of CaS and a light source of visible light and blue light. In this way, since the excitation spectrum of SrGa2S4:Eu and CaS phosphors falls in the blue light band of visible light (Fig. 1), it is packaged with the current mainstream high-power blue light emitting diode light source (430nm-480nm). It can generate green and red light bands, adjust the ratio of green light and red light fluorescent powder, and adjust the chromaticity coordinates of the light, thus producing golden light.
源。此外，根據此發光二極體之電流與波長關係圖（如圖二)，及習知三波長發 光二極體之電流與波長關係圖（如圖三），比較兩者於5毫安培及60毫安培 之峰值波長差異(如圖四），由此數值可知，本創作之金色發光二極體所使用之 紅色及綠色螢光粉之發光顏色穩定性較習知之螢光粉高，其峰值波長隨電流之 變化量較小，因此本創作所製作之金色發光二極體較習用之三波長發光二極體 有較高之發光顏色穩定性。 6 M318801 【實施方式】 請參閱第五圖，第五圖係本創作綠光發光二極體之示意圖。如第五圖所示， 本創作中金色光發光二極體主要由光源10、封裝體12所組成。光源1〇其發光 波長介於（430〜480nm)，而封裝體12則含有使用兩種以上的螢光粉。這兩種的 螢光粉之發光波段須為綠色及紅色，其中使用硫、鎵、鳃、約、鋇、銪和其他 近似元素兩種以上合成之螢光粉。以下先說明為何本創作所提出的光源1〇可發 出金色光，以及其發光顏色穩定性比習知三波長發光二極體有更好的效果，接 著再說明配合光源10之封裝體12的螢光粉。 φ 本創作提供一種可使用發光波長位於(430-480nm)發光二極體搭配螢光粉封source. In addition, according to the relationship between the current and the wavelength of the light-emitting diode (Fig. 2), and the relationship between the current and the wavelength of the conventional three-wavelength light-emitting diode (Fig. 3), comparing the two at 5 mA and 60 The peak wavelength difference of milliamperes (as shown in Fig. 4), the numerical value shows that the red and green phosphors used in the golden light-emitting diode of the present invention have higher luminous color stability than the conventional fluorescent powder, and the peak wavelength thereof The amount of change with current is small, so the golden light-emitting diode produced by the present invention has higher luminous color stability than the conventional three-wavelength light-emitting diode. 6 M318801 [Embodiment] Please refer to the fifth picture, the fifth picture is a schematic diagram of the green light emitting diode of the present invention. As shown in the fifth figure, the golden light emitting diode in the present invention is mainly composed of the light source 10 and the package 12. The light source 1 has a light emission wavelength of (430 to 480 nm), and the package 12 contains two or more types of phosphor powder. The luminescent bands of these two kinds of phosphors must be green and red, and sulfur powders of two or more kinds of sulfur, gallium, germanium, about, antimony, bismuth and other similar elements are used. The following is a description of why the light source 1〇 proposed by the present invention can emit golden light, and the color stability of the light is better than that of the conventional three-wavelength light-emitting diode, and then the firefly of the package 12 of the light source 10 is explained. Light powder. φ This creation provides a light-emitting diode with a luminous wavelength at (430-480nm) with a fluorescent powder seal
裝為金色光之方法。習知做法若要製作出金色光發光源，必須使用全光言普之鶴 絲或白熾燈泡，並在表面塗布上金色染料，此方式不僅步驟繁雜，且鎢絲燈泡 或白熾燈泡之使用竒命較短，不利於長時間之指示燈或顯示看板使用。本創作 使用發光波長位於(430-480nm)發光二極體搭配SrGaA^Eu之綠色螢光粉及CaS 紅色螢光粉，產生出紅綠藍三種發光波段加以混合，以肉眼視之其為金色之發 光二極體，色度座標為Χ = 〇·3〜〇·5與Υ=0·4〜0.45。 此種以一藍色發光源搭配紅綠兩種螢光粉之三波長發光二極體，在習知作 法中皆使用SrGaA^Eu綠色螢光粉及SrS紅色螢光粉，但由於SrS紅色螢光粉 •之發光波長穩定性不佳，易隨著驅動電流之增大所產生之熱能而改變(如圖 -四），比較5毫安培與60毫安培驅動電流其發光色度座標，X約差距〇 〇5〇8， Y約差距0.0488,因此使用習知兩種螢光粉製作出三波長發光二極體之發光顏 色穩定性較差。本創作使用CaS紅色螢光粉取代習知SrS紅色螢光粉，由第四 圖之比較可知，5毫安培與60毫安培驅動電流其發光色度座標，χ約差距 0.0288，Υ約差距〇·0025，CaS紅色螢光粉所製作出之金色發光二極體發光顏色 穩定性較習知三波長發光二極體佳，因此不論應用於各種指示燈，或是室内外 顯示看板皆可以有較佳之顯示品質。 7 M318801 本創作封裝方式闌述如下： A.金色光發光二極體： 1.取3g之裱氧樹脂’將其置於小試管中。The method of loading golden light. In order to create a golden light source, it is necessary to use a full-light plain or incandescent light bulb and apply a gold dye on the surface. This method is not only complicated, but also the use of tungsten or incandescent bulbs. Shorter, not good for long time indicators or display kanban use. This creation uses a green fluorescent powder with a wavelength of (430-480 nm) and a green fluorescent powder of SrGaA^Eu and a CaS red fluorescent powder to produce three kinds of red, green and blue light-emitting bands, which are mixed by the naked eye. For the light-emitting diode, the chromaticity coordinates are Χ = 〇·3~〇·5 and Υ=0·4~0.45. The three-wavelength light-emitting diode with a blue light source and red and green phosphor powders uses SrGaA^Eu green phosphor powder and SrS red phosphor powder in the conventional practice, but due to the SrS red firefly. Light powder • The wavelength stability of the light emission is not good, and it is easy to change with the heat energy generated by the increase of the driving current (Fig. 4). Compare the light chromaticity coordinates of 5 mA and 60 mA driving current, X. The difference 〇〇5〇8, Y is about 0.0488, so the light-emitting color stability of the three-wavelength light-emitting diode is poorly produced by using two kinds of fluorescent powders. This creation uses CaS red fluorescent powder to replace the conventional SrS red fluorescent powder. From the comparison of the fourth figure, the illuminating chromaticity coordinates of 5 mA and 60 mA driving current are different, and the gap is 0.0288. 0025, the golden light-emitting diode produced by CaS red fluorescent powder has better color stability than the conventional three-wavelength light-emitting diode, so it can be better whether it is applied to various indicator lights or indoor and outdoor display boards. Display quality. 7 M318801 This creation and packaging method is described as follows: A. Golden light emitting diode: 1. Take 3g of epoxy resin' in a small test tube.
^^^〇.27g^CaS 管中’以玻棒均⑽合，使環氧樹脂中無法以肉 3^^^〇.27g^CaS in the tube, the glass rods are all combined (10), so that the epoxy resin cannot be used.
與 =:持._棒進行搜 4·將環氧樹脂放人抽真空•進行抽真空動作，將環氧樹脂中之氣泡抽除。 畢之魏粉放置於轉機之針制，調整點職之氣體量至合 10的腳架14中，並使螢光粉均勻 以60°C烘烤45分鐘。 依一般封裝程序完成封裝， 而構 6·將螢光粉點入固有如第五圖所示之光源 充滿腳架14。 7·將灌滿螢光粉之腳架14放置入烤箱内， 8·在將烘烤完畢之腳架14插入封膠機中， 成含有螢光粉的封裒體12。 B而構成含有螢光粉的封裝體12。 【圖式簡單說明】 第一圖係本創作螢光粉之激發與發射之光譜圖。 第二圖係本創作金色光發光二極體之輸入電流與發光光譜關係圖。 第三圖係習知三波長發光二極體之輸入電流與發光光譜關係圖。 第四圖為本創作之金色光發光二極體與習知三波長發光二極體之s 宅女培 輸入電流與60毫安培輸入電流時發光色度座標差之比較。 8 M318801 第五圖係本創作金色光發光二極體之示意圖 【主要元件符號說明】 10光源 12封裝體 14腳架Search with =: Hold the ._ stick. 4. Place the epoxy resin in a vacuum. • Perform a vacuum action to remove the bubbles from the epoxy resin. Bizhiwei powder was placed in the needle of the transfer machine, and the amount of gas to be used was adjusted to the footrest 14 of the 10, and the phosphor powder was uniformly baked at 60 ° C for 45 minutes. The package is completed according to the general packaging process, and the fluorescent powder is inserted into the light source which is inherently as shown in FIG. 7. Place the flipper 14 filled with the phosphor powder into the oven. 8. Insert the baked stand 14 into the sealer to form the seal body 12 containing the phosphor powder. B constitutes a package 12 containing phosphor powder. [Simple description of the diagram] The first picture is the spectrum of the excitation and emission of the fluorifiable powder. The second picture is the relationship between the input current and the luminescence spectrum of the golden light-emitting diode of the present invention. The third figure is a diagram showing the relationship between the input current and the luminescence spectrum of a conventional three-wavelength light-emitting diode. The fourth picture is the comparison between the golden light-emitting diode of the creation and the conventional three-wavelength light-emitting diode s house-in-law. The input current and the chromaticity of the chromaticity of the 60 amp input current are compared. 8 M318801 The fifth picture is a schematic diagram of the created golden light-emitting diode [Main component symbol description] 10 light source 12 package 14 tripod