Abstract:
A liquid crystal display and a driving method of the same are provided, and which drive scanning lines and data lines by a timing controller. When writing data signals to a liquid crystal capacitor, the timing controller controls a source driving circuit to provide the data signals to each data line, and control a gate driving circuit to generate a high-voltage signal to each scanning line in sequence. The high-voltage signals of two adjacent scanning lines overlap. When the high-voltage signals overlap, the timing controller transmits the data signal to each liquid crystal capacitor sequentially. After finishing writing data signals to the liquid crystal capacitor, the timing controller controls the gate driving circuit to generate a pulse signal to each scanning line continuously. The pulse signals generated by the scanning lines do not overlap. Accordingly, it can avoid the leakage of data signal stored in the liquid crystal capacitors.
Abstract:
A bandgap reference voltage circuit comprises a current mirror unit, an operation amplifier (OP), a first resistor, a second resistor, an auxiliary unit, and a voltage generation circuit. An output end of the OP is coupled to a feedback end of the current mirror unit. An end of the first resistor and an end of the second resistor are coupled to a positive input end of the OP. Another end of the first resistor is coupled to a second end of the current mirror unit. A second end of the voltage generation circuit is coupled to another end of the second resistor. An end of the auxiliary unit is coupled to a negative input end of the OP and a first end of the voltage generation circuit, and another end of the auxiliary unit is coupled to the first end of the current mirror unit.