Abstract: A temperature sensor is provided. The temperature sensor includes: a temperature sensing unit for sensing a temperature and outputting a temperature sensing signal; an analog-to-digital converter (ADC), coupled to the temperature sensing unit, for converting the temperature sensing signal to a digital value, having an ADC output range; a calibration unit, coupled to the ADC, for correlating the ADC output range with at least one temperature range; a memory unit, coupled to the calibration unit, recording the ADC output range, and the at least one temperature range, and the correlation therebetween.

Abstract: A switch device for source drivers of liquid crystal displays includes a first switch module; a first switch; a second switch; a second switch module; a third switch module; a fourth switch module; a third switch; and a fourth switch; wherein when a first driving signal with a voltage level between a first voltage level and a second voltage level through the second switch module is sent to a second output terminal and a second driving signal with a voltage level between a third voltage level and a fourth voltage level through the third switch module is sent to a first output terminal, the first switch is turned on such that a first node is connected to a first voltage source with the first voltage level and the fourth switch is turned on such that a second node is connected to a fourth voltage source with the fourth voltage level.

Abstract: A level shifter for a source driver of a liquid crystal display is provided. The level shifter includes: an input stage for generating a signal with a voltage of between a positive input source voltage and a negative input source voltage according to an input logic; a middle stage for generating a first logic signal and a second logic signal according to the signal; and an output stage, for generating a first output signal with a voltage of between a first positive output source voltage and a first negative output source voltage at a first output terminal or a second output signal with a voltage of between a second positive output source voltage and a second negative output source voltage at a second output terminal according to the first logic signal and the second logic signal.

Abstract: A device for driving data used for a liquid crystal display includes: a first latch circuit and a second latch circuit for forming first latched data and second latched data; a first regulating circuit and a second regulating circuit for regulating the first latched data or the second latched data; a first switch, a second switch, a third switch and a fourth switch respectively coupled between the first latch circuit or the second circuit and the first regulating circuit or the second regulating circuit. The first and the second latched data become a first pair of differential signals when the first switch and the fourth switch are turned on. The first and the second latched data become a second pair of differential signals which are opposite to the first pair of differential signals when the second switch and the third switch are turned on.