
浏览全部资源
扫码关注微信
天马微电子股份有限公司 研发中心,广东 深圳,518118
收稿日期:2013-04-01,
修回日期:2013-04-08,
纸质出版日期:2014-03-05
移动端阅览
刘杰, 程松华, 张永栋, 李曙新. 基于Mini-LVDS技术的TFT-LCD时序控制器的设计[J]. 液晶与显示, 2014,29(2): 238-244
LIU Jie, CHENG Song-hua, ZHANG Yong-dong, LI Shu-xin. Design of TFT-LCD timing controller based on mini-LVDS technology[J]. , 2014,29(2): 238-244
刘杰, 程松华, 张永栋, 李曙新. 基于Mini-LVDS技术的TFT-LCD时序控制器的设计[J]. 液晶与显示, 2014,29(2): 238-244 DOI: 10.3788/YJYXS20142902.0238.
LIU Jie, CHENG Song-hua, ZHANG Yong-dong, LI Shu-xin. Design of TFT-LCD timing controller based on mini-LVDS technology[J]. , 2014,29(2): 238-244 DOI: 10.3788/YJYXS20142902.0238.
为了实现基于FPGA的具有Mini-LVDS接口的TFT-LCD时序控制器,对TFT-LCD的时序控制器、Mini-LVDS技术的数据排列方式和FPGA的功能进行了研究。通过对Mini-LVDS的数据排列方式的研究,提出了独特的数据处理方法。利用FPGA内嵌的SRAM,设计了一种并行转串行的转换器,把一行的数据分成前半部分和后半部分并同时向外输出;利用D触发器、延时的方法实现了相邻二点的数据串并转换;综合利用移位寄存器、串行加法器和DDR技术,设计了一种8:1的并串转换电路,实现了子像素内数据的并串转换。利用Xilinx公司的FPGA的输出宏单元,设计了把CMOS逻辑电平信号转换为Mini-LVDS逻辑电平信号的数据发送器。利用Xilinx公司的FPGA的时钟宏单元块,探讨并解决了多时钟的问题。通过研究Mini-LVDS和时序控制器的特性,提出了复位信号的产生方法和相对应的数据处理方法。利用此方法设计出的具有Mini-LVDS接口的时序控制器已应用于本公司的分辨率为1 2801 024的产品中,数据的传输频率达108 MHz,颜色深度为24 bit。这个产品的显示画面清晰,过渡自然。利用此方法设计的TFT-LCD的时序控制器基本符合稳定可靠、抗干扰能力强等要求。
In order to realize the Timing Controller of TFT-LCD with Mini-LVDS interface based on FPGA
data arrangement of technology of Mini-LVDS and the timing controller of TFT-LCD
the function of FPGA are investigated.By studying data arrangement of Mini-LVDS
a special method of data processing was proposed. A parallel to serial converter was designed by using SRAM embedded in FPGA
the data in a row was divided into a front half part and a latter half part and the two parts of data were put out at the same time.The data of two adjacent points was turned from serial to parallel by using D trigger and the method of delay. By using shift register
serial adder and DDR technology
an 8:1 converter was designed and the data in a sub-pixel was turned from parallel to serial. Output Logic Macro cell in FPGA of Xilinx was used in the design of a data transmitter that turned the CMOS logic level signal into Mini-LVDS logic level signal. The problems of multiple clocks were discussed and solved by using clock macro blocks in FPGA of Xilinx. By studying the characteristics of Mini-LVDS and Timing Controller
the method of generating reset signal and the corresponding method of the data processing were presented.The timing controller of TFT-LCD with Mini-LVDS interface has been applied to products of our company with resolution of 1 2801 024
the frequency of its data is 108 MHz
and its color depth is 24 bit. The picture of the product is clear and natural.The timing controller of TFT-LCD can satisfy the system requirements of strong anti-jamming and stabilization.
罗菊华, 杨传仁, 张继华, 等. 基于FPGA的平板显示器件驱动电路的设计[J]. 液晶与显示, 2006, 21(6):680-685. Lou J H, Yang C R, Zhang J H, et al.Design of driving circuit for flat panel display based on FPGA[J].Chinese Journal of Liquid Crystals and Displays, 2006, 21(6):680-685. (in Chinese)[2] 程明, 肖祖胜. 基于FPGA的TFT-LCD显示驱动设计[J]. 液晶与显示, 2009, 24(2): 228-231. Cheng M, Xiao Z S.Design of display driving for TFT-LCD based on FPGA[J].Chinese Journal of Liquid Crystals and Displays, 2009, 24(2): 228-231. (in Chinese)[3] 潘子升, 苗绘玲. 时序控制器TCON的研究与设计[J]. 电子设计工程, 2011, 19(3): 67-70. Pan Z S, Miao H L.Research and design of timing controller[J].Electronic Design Engineering, 2011, 19(3): 67-70. (in Chinese)[4] 金强宁, 洪乙又, 李慧芝, 等. 基于Mini-LVDS技术的TFT-LCD彩色液晶显示屏的驱动研究及应用[J]. 光电子技术, 2009, 29(3): 196-200. Jin Q N, Hong Y Y, Li H Z, et al.The application and study of color TFT-LCD panel driver based on Mini-LVDS technology[J].OptoElectronic Technology, 2009, 29(3): 196-200. (in Chinese)[5] Online Texas Instruments. SLDA007A.2001-08[EB/OL]. http://www.ti.com/[6] Online Novatek Microelectronics Corp. NT39815.2011-08[EB/OL]. http://www.novatek.com.tw/[7] 孙航, 胡灵博.Xilinx可编程逻辑器件应用与系统设计[M].北京:电子工业出版社, 2008:230-240. Sun H, Hu L B.System Design and Application of Xilinx Programmable Logic Device[M].Beijing:Electronic Industry Press, 2008:230-240. (in Chinese)
0
浏览量
49
下载量
2
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621