LED显示屏虚拟组合像素的分析

doi:10.3969/j.issn.1001-2400.2012.04.032

Abstract

Abstract:

The combined-virtual pixels technology widely employed in outside LED displays is analyzed in detail, with its essence of low-pass filtering to images' homochromatic via reusing subpixels indicated. And its contribution to resolution of LED displays is analyzed quantitatively using the MTF(Modulation transfer function) as an image quality index. The concept-addressability of LED displays is proposed, and it is pointed out that the combined-virtual pixels technology could improve addressability of LED displays and weaken jagged edges of displaying images. Simulation results verify that the combined-virtual pixels technology fails to improve the display resolution, and even causes the obvious decline in some parts of displaying images.

Key words: LED display, subpixel algorithms, modulation transfer function, smooth filtering

CLC Number:

TP274.2

ZHAO Xiaoming;ZHOU Xiaoyuan;ZHANG Jianqi;SHAO Xiaopeng. Analysis of the combined-virtual pixels in LED displays[J].J4, 2012, 39(4): 178-183.

References

［1］ de Ryckel A. A Primer on LED Technology for Large-Display-Based Applications［J］. Information Display, 2007, 23(3): 20-24.
［2］程德诗. LED显示屏视频图像分解力提升技术综述［J］. 现代显示, 2004(2): 11-14.
Cheng Deshi. A Comprehesive Introduction of Technologies for Improving LED Video Image Resolution［J］. Advanced Display, 2004(2): 11-14.
［3］许峰, 张俊生. LED信息屏组合虚拟像素技术及其算法研究［J］. 中国图象图形学报, 2009, 14(9): 1915-1918.
Xu Feng, Zhang Junsheng. The Combined-virtual Pixels Technology for LED Display and Study of Algorithm［J］. Journal of Image and Graphics, 2009, 14(9): 1915-1918.
［4］张毅, 张保民. 基于像素重组的彩色阵列超分辨率显示技术［J］. 南京理工大学学报, 2004, 28(2): 145-148.
Zhang Yi, Zhang Baomin. Super-resolution Color Array Display Based on Pixel Reorganization［J］. Journal of Nanjing University of Science and Technology, 2004, 28(2): 145-148.
［5］刘德连, 王博, 张建奇. 期望最大化聚类的高光谱亚像素目标检测［J］. 西安电子科技大学学报, 2009, 36(3): 512-516.
Liu Delian, Wang Bo, Zhang Jianqi. Hyperspectral Subpixel Target Detection Approach Based on Expectation-maximization Cluster［J］. Journal of Xidian University, 2009, 36(3): 512-516.
［6］田玉敏, 林高全. 基于颜色特征的彩色图像检索方法［J］. 西安电子科技大学学报, 2002, 29(1): 43-46.
Tian Yumin, Lin Gaoqua. Retrieval Technique of Color Image Based on Color Features［J］. Journal of Xidian University, 2002, 29(1): 43-46.
［7］ Gibson S. Subpixel Font Rendering Technology［OL］. ［2010-06-13］. http://www.grc.com/cleartype.htm.
［8］ Blinn J F. What Is a Pixel? ［J］. SID Digest, 2000(31): 285-287.
［9］ Lin Chenwei, Chao M C T. A Novel Pixel Design for AM-OLED Displays Using Nanocrystalline Silicon TFTs［J］. IEEE Trans on Very Large Scale Integration(VLSI) Systems, 2011, 19(6): 939-952.
［10］ Lu Fang, Au O C. Min-Max Directional Error for Stripe Display［J］. IEEE Jouranl of Selected Topics in Signal Processing, 2011, 5(2): 240-251.
［11］ Berbecuel G. Digital Image Display［M］. Netherlands: John Wiley ＆ Sons, 2001: 47-65.
［12］ Wang Qiang. The Basic Principle of Modulation Transfer Function ［OL］. ［2000-04-15］. http://www. cgan.net book/books/print/scanner/7.2.htm.

Analysis of the combined-virtual pixels in LED displays

PDF (PC)

Like

Knowledge

Cited

Abstract

Cite this article

share this article

References

Related Articles 0

Metrics

Comments

Recommended 9