丝网印刷碳纳米管显示器灰度失真的研究

潘金艳; 朱长纯; 商世广; 于灵敏

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丝网印刷碳纳米管显示器灰度失真的研究

专题研究 | 更新时间：2025-12-08

- 丝网印刷碳纳米管显示器灰度失真的研究
- On Distortion of Greyscale Display for Silk Screen Printed Carbon Nanotube Display
- 西安交通大学学报 2008年42卷第6期页码：734-738
- 作者机构：
  
  西安交通大学电子与信息工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2007-12-19. 作者简介: 潘金艳(1978-),女,博士生;朱长纯(联系人),男,教授,博士生导师. 基金项目: 国家自然科学基金重点资助项目(60036010);国家自然科学基金资助项目(60476037)
- DOI：
  中图分类号： TN873
- 网络首发：2008-06-09，
  
  纸质出版：2008
- 稿件说明：
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潘金艳, 朱长纯, 商世广, 等. 丝网印刷碳纳米管显示器灰度失真的研究[J]. 西安交通大学学报, 2008,42(6):734-738.

潘金艳, 朱长纯, 商世广, et al. On Distortion of Greyscale Display for Silk Screen Printed Carbon Nanotube Display[J]. 2008, 42(6): 734-738.
潘金艳, 朱长纯, 商世广, 等. 丝网印刷碳纳米管显示器灰度失真的研究[J]. 西安交通大学学报, 2008,42(6):734-738. DOI：

潘金艳, 朱长纯, 商世广, et al. On Distortion of Greyscale Display for Silk Screen Printed Carbon Nanotube Display[J]. 2008, 42(6): 734-738. DOI：

摘要

通过研究两级结构丝网印刷碳纳米管显示器(CNT-FED)引线电极的线性分压问题

发现电极的线性电阻导致不同像素点间存在0.2%的电场偏差

引起8位元(256级)灰度显示中的24级灰度被湮没.为解决电极引线引起的灰度图像显示失真的问题

提出了一种CNT-FED电极的改造方法

通过改进屏内部引线电极和增加阴极反馈电阻

使像素点间的等效电阻值偏差从总电阻值的0.2%减小到0.000 3%

且抑制了发射电流的波动

增加了像素点的过流保护.计算和仿真结果显示

新电极消除了256级灰度显示的失真

有效提高了CNT-FED的发光均匀性.

Abstract

By investigating voltage division caused by linear impedance of electrode in screen printed carbon nanotube field emission display(CNT-FED)with diode structure

it was found that linear impedance of electrodes caused 0.2% variation of electrical field between different pixels

that resulted in 24 grey-scale died away in 8-bit grayscale display(256 grey scales). Therefore

a reconstruction method for electrode of CNT-FED is presented. By amending the electrode and adding a feedback impedance on cathode

the impedance variation between pixels and the total impedance are decreased from 0.2% to 0.000 3%. Field emission current variation is restrained

and the pixels are protected against over-current. Distortion of 256 grey scales display is eliminated with new electrodes

and luminance uniformity of CNT-FED is effectively improved.

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Keywords

references

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SHIROISHI T, HOSONO A, SONO A, et al. Improvement of emission characteristics uniformity of carbon nanotube field emission display by surface treatment [J]. Journal of Vacuum Science Technology:B, 2006, 24(2): 979-982.

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FOLWER R H, NORDHEIM L. Electron emission in intense electric fields [J].Proceedings of the Royal Society of London:Series A, 1928, 119(781):173-181.

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JEONG Y C, PARK C C, KIM L S. A new crosstalk compensation method in line inversion TFT-LCD's [J]. IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 1997, 44(6): 552-555.

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