| 盛立军,傅彬.基于梯度折射结构白光数码管光色一致性研究[J].光电子激光,2019,30(9):912~916 |
| 基于梯度折射结构白光数码管光色一致性研究 |
| Research on color consistency of white digital tube based on gradient refraction structure |
| 投稿时间：2019-02-20 |
| DOI： |
| 中文关键词: 光学器件 白光数码管 梯度折射 光色一致性 |
| 英文关键词:optical devices white light digital tube gradient refraction color uniformit y |
| 基金项目:绍兴市2020年科技计划(公益性技术应用研究计划)资助项目 (绍兴职业技术学院,浙江 绍兴 312000) |
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| 中文摘要: |
| 以黄色荧光粉和有机硅胶为原料,采用高温固相法 制备不同浓度的荧光粉混合浆料,应用热压法将一定质量比ZnO颗粒掺入AB混合胶制备成折 射胶层,于倒置蓝光芯片表面用甩胶旋涂工艺喷覆折射胶体, 利用丝网印刷法将荧光粉混合浆料旋涂于折射层四周制备成白光数码管,并对样品进行光色 性能的测量和 机理分析。研究结果表明,白光数码管色温和色坐标差值随着荧光粉浓度增加呈先降后升的 趋势。在荧光粉浓度为1.19%时,数码管色温降至最低值4761.13K,色坐标差值达到最小值3.5SDCM。随着印刷次数增 加,色坐标离散性先改善后增大,在荧光粉层膜厚为41μm时,色坐标差值达到最小值2.5 SDCM。结果表 征,针对梯度折射结构的白光数码管合理的荧光粉颗粒掺杂浓度和荧光粉层相对厚度对其空 间色均匀性影响显著。 |
| 英文摘要: |
| The high temperature fixation system is used to prepare the mixture of the fluorescent powder in different concentrations with the using of yellow fluorescent powder and organic silicone as raw materials.Hot pressing method was applied to a certain quality than mixed with AB mixed gel pr eparation of ZnO particles into refraction protection layer,middle in inversion are blue chip surface spray coated with sling plastic spin craft refraction colloid,silk screen printing method is used to mix fluorescent powder slurry spin around in refractor preparation into white light digital tube,and the samples are light color performance test and mechanism analysis.The research results show that,the color coordinate difference of white light digital tube color is decreasing first and then rising with the increase of phosphor concentration.When the phosphor concentration was 1.19%,the color temperature in the digital tube dropped to the lowest value of 4761.13K,and the color coordinate difference reached the minimum value of 3.5SDCM.With the increase of printing times,the discretization of color coordinates was improved first and then increased.When the thickness of phosphor film was 41μm,the color coordinate difference reached the minimum value of 2.5SDCM. Results the reasonable doping concentration of phosphor particles and the relative thickness of phosphor layer on the gradient refraction structure had significant effect on the spatial colo r uniformity. |
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