On Distortion of Greyscale Display for Silk Screen Printed Carbon Nanotube Display

潘金艳; 朱长纯; 商世广; 于灵敏

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On Distortion of Greyscale Display for Silk Screen Printed Carbon Nanotube Display

更新时间：2025-12-08

- On Distortion of Greyscale Display for Silk Screen Printed Carbon Nanotube Display
- Vol. 42, Issue 6, Pages: 734-738(2008)
- 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：
- DOI：
  CLC： TN873
- Online First：09 June 2008，
  
  Published：2008
- 稿件说明：
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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：

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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references

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