共查询到17条相似文献,搜索用时 156 毫秒
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面向PDP显示的数字逻辑电路及其设计 总被引:2,自引:0,他引:2
等离子体显示板(PDP)技术是一种极具前景的主动发光式平板显示技术,其驱动技术一直是研究热点之一.文中在介绍PDP驱动系统框架和PDP显示驱动系统中的数字逻辑功能的基础上,针对交流(AC)型PDP在ADS驱动方式下对图像数据的处理和对驱动状态的控制,提出一种面向PDP显示驱动的数字逻辑系统设计方案,并对方案中主要模块的功能、设计思路及存在的挑战进行了说明.最后,结合实验屏的驱动电路进行了逻辑设计仿真和系统验证.文中提出的数字逻辑设计方案对进行PDP显示驱动控制系统设计和相关专用集成电路设计具有重要的借鉴意义. 相似文献
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直线压电电机在精密仪器、生物医学和半导体封装等行业具有广阔的应用前景,其定子结构特性直接影响了电机运行的稳定性和输出性能。以一种直线压电电机定子驱动足的位移输出特性为优化目标,研究该类电机驱动足结构优化设计方法,提高该类电机的综合输出性能。通过分析驱动足的微观几何位移特性,理论研究了驱动足结构参数对输出端宏观运动特性的影响。研究了不同结构下驱动足的输出特性,确定驱动足的结构参数及最优值。最后对优化后的驱动足位移输出性能和力学性能进行仿真分析。加工优化样机,并测试电机的机械输出性能。实验结果表明,电机的输出力为0.64 N,比优化前增大了52.4%。 相似文献
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等离子体显示屏(Plasma Display Panel,PDP)发光在时间上的非线性和人眼平滑跟踪运动目标的自然倾向产生的灰度失调是彩色PDP产生动态假轮廓(Dynamic False Contour,DFC)的主要原因,详细介绍了目前改善DFC的主要方法和基本原理,并对各种方法的优缺点作了分析和评价,提出了一种优化... 相似文献
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针对等离子显示器中运动图像产生的动态伪轮廓现象,提出了一种基于图像运动检测的子场编码优化算法。该算法在分析常用动态伪轮廓和运动补偿算法的基础上,通过检测图像数据的变化差值判断图像的运动状态,并通过图像运动状态选择不同的显示灰度构成方式:静态图像选择全灰度级编码,动态图像选择较少灰度级编码,通过优化编码方式消除图像的动态伪轮廓。实验表明,算法减少了不同运动速度的图像因算法引起的人工纹理,保证了静态图像的显示细节,达到改善显示图像画质的目的。此外,该算法还具有处理速度快,易于硬件实现等优点。 相似文献
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Joon-Young Choi Dong-Hyun Kim Ho-Jun Lee Lee H.J. Chung-Hoo Park 《Electron Devices, IEEE Transactions on》2005,52(9):1988-1992
A possible method to control luminance of a whole panel in an ac plasma display panel (PDP) is to control a total number of sustain pulses which is called as gray level control. However, this method leads to rough step-like luminance control especially in the low gray level. In this paper, a simple and robust luminance control method of whole panel is proposed. The key feature of the proposed driving technique is application of asymmetric amplitude modulation of sustain pulses in the display period of the address, display-period separation (ADS) driving scheme. As a result, the range of luminance control by the proposed method is about 50% of the luminance for a given gray level. Moreover, it is experimentally verified that the proposed method has similar dynamic margin performances compared with the conventional method. 相似文献
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Chung-Hoo Park Dong-Hyun Kim Sung-Hyun Lee Jae-Hwa Ryu Jung-Soo Cho 《Electron Devices, IEEE Transactions on》2001,48(6):1082-1086
To replace the dual scan system by single scan in large ac plasma display panel (PDP), the addressing time should be reduced by modifying cell structure and/or driving circuits. Moreover, the luminance of the PDP can also be increased with the decrease in the addressing time. In this paper, we suggest the bus and address electrodes with triangular protruding tips in order to reduce the addressing time. Moreover, the addressing time of the ac PDP with these electrodes was investigated experimentally with address and display period separated (ADS) driving method. The experimental results show that the addressing time can be reduced more than 30% compared with the conventional type by modifying the electrodes without reducing the luminance of the PDP 相似文献