一体化的白光数码管封装技术
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摘要
针对低色温白光数码管发光效率低的情况,提出了一体化的封装工艺。主体结构包括一体化技术的发光室和斜腔结构的反射盖。为验证用新工艺制备的白光数码管的光电性能,利用实验设备测试和分析了自制的两种不同工艺封装的白光数码管显色指数、发光效率以及色坐标等性能指标。实验结果表明,新工艺制备的白光数码管平均显色指数比传统点胶工艺高1.53%、平均发光效率高191%,从色坐标集中度看,新工艺制备的白光数码管出光均匀性比点胶工艺好。
In view of the situation of low luminous efficiency on low color temperature of white light digital tube,the integration of the packaging technology is put forward.The major structure is including the light emitting chamber of integration technology and the reflection of inclined cavity structure.To verify the photoelectric properties after using new process preparation of white light digital tube,the experimental instrument is adopted to test and analysis the CRI and luminous efficacy and chromaticity coordinate from two different process packaging of white light digital tube.The experimental results show that the new one is 1.53% higher than traditional dispensing technology in CRI,and 191% higher than traditional ones in luminous efficiency by average.From the concentration of color coordinates,the new process technology of white light digital tube is better than dispensing process on the light uniformity as well.
In view of the situation of low luminous efficiency on low color temperature of white light digital tube,the integration of the packaging technology is put forward.The major structure is including the light emitting chamber of integration technology and the reflection of inclined cavity structure.To verify the photoelectric properties after using new process preparation of white light digital tube,the experimental instrument is adopted to test and analysis the CRI and luminous efficacy and chromaticity coordinate from two different process packaging of white light digital tube.The experimental results show that the new one is 1.53% higher than traditional dispensing technology in CRI,and 191% higher than traditional ones in luminous efficiency by average.From the concentration of color coordinates,the new process technology of white light digital tube is better than dispensing process on the light uniformity as well.
引文
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[2]Cui D S,Guo W L,Cui B F,et al.Effects of injection current on otpical characteristics of GaN-based power LED[J].Journal of Optoelectronice·Laser,2011,22(9):1309—1312.
[3]Wu F T,Huang Q L.A precise model of LED lighting and its application on uniform illumination system[J].Optoelectronics Letters,2011,7(5):0334—0336.
[4]Himizu Y,Sakano K,Noguchi Y,et al.Light emitting device having a nitride compound semiconductor and a phosphor containing agarnet fluorescent material:US,5998925[P].1997-7-29.
[5]Liu R H,He H Q,Huang X W,et al.New progress in study and application on phosphors for white LED[J].Semiconductor Technology,2012,37(3):221—227.
[6]Liang T J,Zhang F H,Han L.Influence of organic fluorescent material MEH-PPV on luminescent properties of white LED[J].Journal of Optoelectronice·Laser,2013,24(3):455—458.
[7]Bi C D,Zhang F H,Sun L R,et al.Influence of organic fluorescent material DCJTB on luminescent properties of white LED[J].Journal of Optoelectronice·Laser,2011,22(11):1660—1662.
[8]Hu C Q,Zhang F H,Zhang J.The spectral and junction temperature properties of new white light LED[J].Chinese Journal of Luminescence,2012,33(9):939—943.
[9]Sheng L J.Research of the white light of the digital tube technology based on the point glue[J].Optical Technique,2013,39(3):286—288.