Patent ID: 9495933
Filing Date: 2016-11-15
CPC Classification: G09G

Claim Text:
1. An analog data transmitter, applied in a liquid crystal display (LCD) apparatus, the analog data transmitter comprising: an output pad, for outputting an output data signal; a channel operational amplifier, comprising a first input terminal, a second input terminal, and an output stage, wherein the output stage comprises a plurality of transistors and the first input terminal is used to receive an input data signal; an initial switch, coupled to the output stage; an auxiliary switch module, coupled between the initial switch and the output pad, the auxiliary switch module comprising a first switch unit and a second switch unit, wherein the first switch unit and the second switch unit are coupled in series between an operating voltage and a ground terminal, the initial switch and the output pad are both coupled between the first switch unit and the second switch unit; and a detection unit, coupled to the second input terminal, the output pad, and the auxiliary switch module, for selectively starting the first switch unit or the second switch unit of the auxiliary switch module according to a pulse width modulation corresponding to a data conversion amplitude of the output data signal outputted from the output pad; wherein during a period from a first time T