复合电极型LCD平板背光源

制备了一种分别利用不同导电介质为外电极的等离子体激发发光平板背光源.这种电光源由2片平板玻璃中间充入纯氙气（气压200 Torr）密封而成,光源内表面上各涂敷一层荧光粉,在上玻璃板的外表面上密封一薄层水膜为电极,在下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1.1 mm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.研究结果表明,最大发光亮度可达4 000 cd/m2,最佳激发频率9.6 kHz,发光均匀度大于92%.

A Complex Electrode Flat Back-light for LCD

A new flat back-light excited by plasma employing different conductive materials as the external electrode was developed.This back-light is composed of two sealed flat glasses in which the pure Xe（at pressure of 200 Torr） was inflated and a layer of phosphor was coated.A water film being considered as electrode was sealed on the out surface of the upper glass substrate,and an ITO film being considered as conductive medium was added on the out surfaces of the lower glass substrate by using the transparent conductive tape,where the glass with 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 4 000 cd/m2 accompanied with the lighting homogeneity over than 92%.The experimental results show that the most suitable driving frequency was 9.6 kHz.