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MSP430F449: 液晶驱动电平异常征询

Part Number: MSP430F449

HI TI Team,

当前水表上的液晶出现 了残影的现象,如图1所示。

1 液晶残影图

关于液晶驱动方面的,客户看了液晶的规格书,理想的驱动的电平如图2所示,而客户实际测得的液晶驱动,com口和seg口的电平如下面波形所示。

请问驱动波形异常了会导致出现液晶残影的现象吗?要如何解决?请支持,谢谢。

2 液晶厂提供的规格书液驱动波形、电压和桢频

seg脚电平

COM口电平