Patent ID: 9159289
Filing Date: 2015-10-13
Classification: G09G

Abstract:
1. A liquid crystal display, comprising: a plurality of pixels comprising thin film transistors (TFTs) and pixel electrodes, each TFT comprises a gate, a source and a drain, and the pixel electrode connects to the drain; a scanning driver for generating scanning driving signals; a waveform shaping circuit for connecting with the scanning driver, the waveform shaping circuit shapes waveforms of the scanning driving signal along a rising edge; a plurality of scanning lines connecting to the gate for transmitting the shaped scanning driving signal to the gate to turn on the TFTs; a plurality of data lines connecting to the source so as to transmit data driving signals to the pixel electrodes via the source when the TFTs are turn on; wherein the rising edge of the shaped scanning driving signal comprises at least a first tilted portion; and wherein the waveform shaping circuit comprises a first N-type MOS transistor, a second N-type MOS transistor, a P-type MOS transistor, a first resistor, a second resistor, a third resistor, a RC circuit, and a first capacitor, first ends of the RC circuit and the first capacitor connect between a connecting point of the drain of the P-type MOS transistor and the third resistor and the scanning line, and second ends of the RC circuit and the first capacitor are grounded, the RC circuit comprises a second capacitor and a fourth resistor that are serially connected, a voltage range of the first tilted portion is controlled b the resistance of the fourth resistor, and a time range of the first tilted portion is controlled by the capacitance of the second capacitor.