| AMOLED灰阶补偿算法研究 |
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| 引用本文： | 张磊,梁监天,张雷,宗艳凤,胡俊涛,吕国强.AMOLED灰阶补偿算法研究[J].电子测量技术,2015,38(9):35-39. |
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| 作者姓名： | 张磊 梁监天 张雷 宗艳凤 胡俊涛 吕国强 |
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| 作者单位： | 1.合肥工业大学 特种显示技术教育部重点实验室 特种显示技术国家工程实验室 现代显示技术 省部共建国家重点实验室合肥230009；2.合肥工业大学计算机与信息学院合肥230009,1.合肥工业大学 特种显示技术教育部重点实验室 特种显示技术国家工程实验室 现代显示技术 省部共建国家重点实验室合肥230009；3.合肥工业大学仪器科学与光电工程学院合肥230009；,1.合肥工业大学 特种显示技术教育部重点实验室 特种显示技术国家工程实验室 现代显示技术 省部共建国家重点实验室合肥230009；4.中国第一汽车股份有限公司无限油泵油嘴
研究所无锡214063；5.合肥工业大学 光电技术研究院合肥230009,1.合肥工业大学 特种显示技术教育部重点实验室 特种显示技术国家工程实验室 现代显示技术 省部共建国家重点实验室合肥230009；3.合肥工业大学仪器科学与光电工程学院合肥230009；,1.合肥工业大学 特种显示技术教育部重点实验室 特种显示技术国家工程实验室 现代显示技术 省部共建国家重点实验室合肥230009 ； 5.合肥工业大学 光电技术研究院合肥230009,1.合肥工业大学 特种显示技术教育部重点实验室 特种显示技术国家工程实验室 现代显示技术 省部共建国家重点实验室合肥230009 ； 5.合肥工业大学 光电技术研究院合肥230009 |
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| 摘 要： | 为了解决一种小型AMOLED显示屏由灰阶丢失导致的图像变形问题，提出了一种AMOLED灰阶补偿算法。首先测试不同亮度下AMOLED显示灰阶时亮度变化的数据，然后依据测试数据建立亮度变化与灰阶丢失的映射关系，最后使用非线性灰阶压缩的方法对输入图像进行变换，补偿灰阶丢失引起的图像失真。通过软件仿真和硬件测试表明，该算法可以有效地补偿由于AMOLED亮度变化而无法正常显示的灰阶的问题，使图像能够正常显示。因此该算法可以保证小型AMOLED显示屏在不同亮度下工作时能够正常显示灰阶。
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| 关 键 词： | AMOLED 补偿 灰阶 FPGA |
AMOLED gray level compensation algorithm |
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| Zhang Lei,Liang Jiantian,Zhang Lei,Zong Yanfeng,Hu Juntao and Lv Guoqiang.AMOLED gray level compensation algorithm[J].Electronic Measurement Technology,2015,38(9):35-39. |
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| Authors: | Zhang Lei Liang Jiantian Zhang Lei Zong Yanfeng Hu Juntao and Lv Guoqiang |
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| Affiliation: | 1.Key Lab of Special Display Technology, Ministry of Education, National Engineering Lab of Special Display Technology, National Key Lab of Advanced Display Technology, Academy of Opto Electronic Technology, Hefei University of Technology,
Hefei 230009,China; 2.Department of Computer and Information, Hefei University of Technology, Hefei 230009,China;,1.Key Lab of Special Display Technology, Ministry of Education, National Engineering Lab of Special Display Technology, National Key Lab of Advanced Display Technology, Academy of Opto Electronic Technology, Hefei University of Technology, Hefei 230009,China; 3.Department of Instrument Science and Opto electronic Engineering, Hefei University of Technology, Hefei 230009,China,1.Key Lab of Special Display Technology, Ministry of Education, National Engineering Lab of Special Display Technology, National Key Lab of Advanced Display Technology, Academy of Opto Electronic Technology, Hefei University of Technology, Hefei 230009,China; 4.The Frist China Infinite Nozzle Research Co.ltd.,Wuxi 214063,China,1.Key Lab of Special Display Technology, Ministry of Education, National Engineering Lab of Special Display Technology, National Key Lab of Advanced Display Technology, Academy of Opto Electronic Technology, Hefei University of Technology, Hefei 230009,China; 3.Department of Instrument Science and Opto electronic Engineering, Hefei University of Technology, Hefei 230009,China,1.Key Lab of Special Display Technology, Ministry of Education, National Engineering Lab of Special Display Technology, National Key Lab of Advanced Display Technology, Academy of Opto Electronic Technology, Hefei University of Technology, Hefei 230009,China; 5.Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009,China and 1.Key Lab of Special Display Technology, Ministry of Education, National Engineering Lab of Special Display Technology, National Key Lab of Advanced Display Technology, Academy of Opto Electronic Technology, Hefei University of Technology, Hefei 230009,China; 5.Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009,China |
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| Abstract: | To solve the problem of image deformation on the small AMOLED display, which caused by loss of gray level, a gray level compensation algorithm is proposed. First of all, test data of gray level display is acquired at different luminance. According to the test data, the mapping between brightness change and loss of gray level is established. Finally, using a nonlinear gray level compression method to process an input image, image distortion for loss of gray level is compensated. The software simulation and hardware test result show that the algorithm can effectively compensate abnormal display gray level because of AMOLED display brightness variation, and make it normal display. Therefore, the algorithm is enabling the small AMOLED display to display gray level properly at different brightness. |
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| Keywords: | AMOLED compensation gray level FPGA enabling |
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