摘要
为了进一步提高内部无电极型LCD平板背光源的发光亮度及其使用寿命,制备了一种利用固体ITO导电薄膜为导电介质的等离子体激发发光平板背光源。该电光源由两片平板玻璃中间充入纯氙气密封而成,光源内表面上各涂敷一层荧光粉,在玻璃板的外表面上用透明导电胶粘上一层ITO(氧化铟锡)导电薄膜为导电介质,以1.1mm厚的玻璃板作为介质阻挡放电层,在高频交变电压的作用下产生等离子体,激发荧光粉发光。其最大发光亮度可达4500cd/m2,可持续发光5000h,最佳激发频率10.0kHz,发光均匀度大于92%。
For the purpose of increasing the stability and the lifetime of the electrodeless flat back-light, a new flat back-light excited by plasma employing solid ITO film as the external electrode was developed. This back-light was composed of two flat glasses in which the pure Xe and a layer of phosphor was sealed, and two ITO films were added on the out surfaces by using the transparent conductive tape, where the glass with the thickness of 1.1 mm was used as the dielectric barrier discharge layer. The white light was available by exciting the phosphor layer with the plasmas introduced by high-frequency voltage, whose luminance was 4 500 cd/m^2 accompanied with the lighting homogeneity over than 92 %. The experimental results showed that the most suitable driving frequency was 10.0 kHz, and the lifetime can be 5 000 hours.
出处
《半导体光电》
CAS
CSCD
北大核心
2010年第6期854-857,共4页
Semiconductor Optoelectronics
基金
西安市应用新材料创新基金项目(XA.AM-200912)
关键词
固体膜外电极
平板背光源
等离子体
荧光灯
solid external film electrode
flat back-light
plasma
fluorescent lamp
