Achievement on White Balance for AM-OLED

YIN Sheng; CAI Dong-jing

doi:10.3788/YJYXS20132803.0382

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Achievement on White Balance for AM-OLED

Driving & Controlling | 更新时间：2020-08-12

- Achievement on White Balance for AM-OLED
- Chinese Journal of Liquid Crystals and Displays Vol. 28, Issue 3, Pages: 382-385(2013)
- 作者机构：
  
  华中科技大学光学与电子信息学院,湖北武汉,430074
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20132803.0382
  CLC： O753+.2
- Received：07 December 2012，
  
  Revised：22 March 2013，
  
  Published Online：01 April 2013，
  
  Published：15 June 2013
- 稿件说明：
移动端阅览
尹盛, 蔡东京. 用数模结合的方法实现AM-OLED的白平衡[J]. 液晶与显示, 2013,28(3): 382-385

YIN Sheng, CAI Dong-jing. Achievement on White Balance for AM-OLED[J]. , 2013,28(3): 382-385
尹盛, 蔡东京. 用数模结合的方法实现AM-OLED的白平衡[J]. 液晶与显示, 2013,28(3): 382-385 DOI： 10.3788/YJYXS20132803.0382.

YIN Sheng, CAI Dong-jing. Achievement on White Balance for AM-OLED[J]. , 2013,28(3): 382-385 DOI： 10.3788/YJYXS20132803.0382.

摘要

由于单独使用数字算法会导致灰度级降低

而单独使用模拟算法难以实现微调或者电路过于复杂

文章采用数模结合的方法实现了AM-OLED的白平衡

即通过先后进行模拟调节和数字调节

弥补了二者的不足。先根据三基色确定驱动电压

完成了模拟调节。再进行数字调节

采用了基于L-M优化法的BP学习算法

对OLED的传输特性曲线进行拟合。该算法与传统BP算法相比学习速度得到了提高

网络的收敛加快

避免了系统陷入局部极小的状况。仿真结果和显示结果表明

这种方法实现了图像的白平衡。

Abstract

As using digital algorithms alone will lead to lower gray level while the use of simu- lation algorithms alone is difficult to achieve fine-tuning or the circuit is too complex

a method of combining digital and analog is proposed to achieve AM-OLED white balance by using analog simulation and digital adjustment to make up for these shortcomings. Analog simulation is determined by the drive voltage according to the three primary colors. Digital adjustment using LM optimized BP learning algorithm fits the curve of the transmission characteristics of the OLED. Compared with traditional BP algorithms

learning speed of this algorithm is improved

the convergence of the network is accelerated

and it avoids a system into a local minimum. The simulation results and the display results show that this method achieves the white balance of the image.

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Keywords

references

Nathan A, Kumar A, Sakarya K, et al. Amorphous silicon thin film transistor circuit integration for organic LED displays on glass and Plastic [J]. Solid-State Circuits,2004,39(9):1477-1486.[2] Baek J H, Lee M H, Lee J H, et al. A current-mode display driver IC using sample-and-hold scheme for QVGA full-color AMOLED displays [J]. Solid-State Circuits, 2006,41(12):2974-2982.[3] 李红燕,张玉祥,张宏科,等. 不同主体材料对红色磷光OLED器件性能的影响 [J]. 发光学报, 2009,30(5):585-589.[4] 丁磊,张方辉,马颖,等. 一种新型双空穴注入层微腔OLED [J]. 液晶与显示, 2011,26(4):496-501.[5] 尹盛,江博,李喜峰,等. 17.8 cm彩色AMOLED驱动模块的研制 [J]. 液晶与显示 ,2012,27(3):347-352.[6] 李国强,章坚武,占志伟. AMOLED驱动电路和LINUX下驱动程序设计 [J]. 液晶与显示, 2011,26(4):527-531.[7] 李奇奋, 李妥, 陈志良. 用于AM-OLED显示屏控制的MDDI数据处理芯片设计 [J]. 液晶与显示, 2011,26(6):801-807.[8] Lukac R. New framework for automatic white balancing of digital camera images [J]. Signal Processing, 2008, 88(3): 582-593.[9] Radu Ciprian Bilcu. Multiframe auto white balance [J]. IEEE Signal Processing Letters,2011,46(3):165-168.[10] 徐艳芳,黄敏,金杨.基于色度比特性的显示器色度特性化 [J]. 液晶与显示 ,2008,12(6):771-777.[11] 李俊江, 路宏年, 李保磊. 基于BP网络的图像增强器像元通道不一致性校正研究 [J]. 光学技术, 2007,33(2):273-275.[12] Cardei V C, Funt B, Barnard K. Estimating the scene illumination chromaticity by using a neural network [J]. Opt. Soc. Am. A, 2002,19:2374-2386.

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