一种多模式工作的TFT LCD栅驱动芯片设计

针对不同场合的TFT LCD显示屏，设计了一种工作模式可选的栅驱动芯片。芯片具有输出左移／右移控制、输入输出端口选择、输出模式选择、整体和分段清零等功能，并且各个功能之间可相互配合。通过VSEL1，VSEL2，VOE，R／L四个控制信号的配合使用，实现了一组简单高效的控制电路，完成上述的全部功能。最后给出整体控制电路和芯片工作时序。

Design of a TFT LCD Gate Driver Circuit Satisfied with Different Occasion

Depending on the different application of TFTLCD, a gate drive IC with flexible operation mode is designed. Various functions, such as left/right shift, input/output exchange, selection of output mode and partially/fully clear are presented. Furthermore, through the four controlling signal Vsell , Vsel2 , VOE and R/L, a simple and highly efficient control circuit is achieved. The complete schematic and the timing diagram are given at the end of this paper.