西安交通大学电子与信息工程学院,西安,710049
网络首发:2007-10-10,
纸质出版:2007
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潘金艳, 朱长纯, 刘永相, 等. 丝网印刷碳纳米管显示器驱动电路的研制[J]. 西安交通大学学报, 2007,41(10):1197-1201.
潘金艳, 朱长纯, 刘永相, et al. Study on Driving Circuit for Complete Silk Screen-Printed Carbon Nano-Tube Field Emission Display[J]. 2007, 41(10): 1197-1201.
为解决采用丝网印刷技术制作的碳纳米管显示器件(CNT-FED)驱动电压高、亮度均匀性差的问题
设计并实现了电压控制的寻址与显示分离型的驱动电路.采用分离高压控制器件实现了行、列驱动电压波形
并利用反向高压控制暗像素点
不仅能满足丝网印刷CNT-FED 700~1 000 V的高压驱动要求
并且有效抑制了漏电流导致的串亮现象.在各行电路上设计了限流电阻
对场发射电流起到反馈作用
有效改善了亮度均匀性.该驱动电路成本低
且从电路角度提升了丝网印刷CNT-FED的亮度和发光均匀性.测试结果表明:由新电路驱动的CNT-FED可实现动画显示
峰值亮度可达到1 400 cd/m
2
.
To avoid the high driving voltage and illuminant non-uniformity of carbon nano-tube field emission display(CNT-FED)fabricated by silk screen-printed technology
a voltage controlled address display-period separation driving circuit is designed and implemented. Line and column driving wave are realized by adopting a separate high voltage controller and a reverse high voltage is applied to control turn-off pixels. The circuit not only satisfies the high driving voltage from 700 V to 1 000 V for silk screen-printed CNT-FED
and also the crosstalk caused by leakage current is restrained. Current-limit resistance is presented on every line which serves as the feedback for field emission current
and the illuminant uniformity of CNT-FED is improved effectively. The driving circu
it has low cost
and luminance and uniformity of silk screen-printed CNT-FED is advanced from the point of circuits view. Tests results show that CNT-FED with the driving circuit can displays dynamic image and the peak luminance comes to 1 400 cd/m
2
.
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