Line of Sight Correction of High-Speed Liquid Crystal Using Overdriving Technology
文献类型:期刊论文
作者 | Guo, Hongyang2,3; Li, Qing2,3,4; Xu, Yangjie2,3; Huang, Yongmei2,3; Du, Shengping2,3 |
刊名 | ELECTRONICS |
出版日期 | 2020-09-10 |
卷号 | 9期号:9页码:9091477-1-11 |
ISSN号 | 2079-9292 |
关键词 | Liquid Crystal Overdrive Fpga Response Time Diffraction |
DOI | 10.3390/electronics9091477 |
文献子类 | 期刊论文 |
英文摘要 | In the line of sight correction system, the response time of the liquid crystal spatial light modulator under the normal driving voltage is too long to affect system performance. On the issues, an overdriving method based on a Field-Programmable Gate Array (FPGA) is established. The principle of the overdrive is to use a higher voltage difference to achieve a faster response speed of liquid crystal. In this scheme, the overdriving look-up table is used to seek the response time of the quantized phase, and the liquid crystal electrode is driven by Pulse-Width Modulation (PWM). All the processes are performed in FPGA, which releases the central processing unit (CPU) memory and responds faster. Adequate simulations and experiments are introduced to demonstrate the proposed method. The overdriving experiment shows that the rising response time is reduced from 530 ms to 34 ms, and the falling time is from 360 ms to 38 ms under the overdriving voltage. Typical light tracks are imitated to evaluate the performance of the line of sight correction platform. Results show that using the overdrive the -3 dB rejection frequency was increased from 1.1 Hz to 2.6 Hz. The suppression ability of the overdrive is about -20 dB at 0.1 Hz, however the normal-driving suppression ability is only about -13 dB. |
出版地 | BASEL |
WOS研究方向 | Engineering |
语种 | 英语 |
出版者 | MDPI |
WOS记录号 | WOS:000581206600001 |
源URL | [http://ir.ioe.ac.cn/handle/181551/10050] |
专题 | 光电技术研究所_光电工程总体研究室(一室) |
作者单位 | 1.Univ Elect Sci & Technol China, Sch Optoelect Sci & Engn, 4 Sect 2 North Jianshe Rd, Chengdu 610054, Peoples R China 2.Chinese Acad Sci, Key Lab Opt Engn, 1 Guangdian Rd, Chengdu 610209, Peoples R China 3.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Peoples R China 4.Univ Chinese Acad Sci, Sch Optoelect, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Guo, Hongyang,Li, Qing,Xu, Yangjie,et al. Line of Sight Correction of High-Speed Liquid Crystal Using Overdriving Technology[J]. ELECTRONICS,2020,9(9):9091477-1-11. |
APA | Guo, Hongyang,Li, Qing,Xu, Yangjie,Huang, Yongmei,&Du, Shengping.(2020).Line of Sight Correction of High-Speed Liquid Crystal Using Overdriving Technology.ELECTRONICS,9(9),9091477-1-11. |
MLA | Guo, Hongyang,et al."Line of Sight Correction of High-Speed Liquid Crystal Using Overdriving Technology".ELECTRONICS 9.9(2020):9091477-1-11. |
入库方式: OAI收割
来源:光电技术研究所
其他版本
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。