Patent ID: 9135879
Filing Date: 2015-09-15
Classification: G09G

Abstract:
1. A chamfer circuit in a driving system of a liquid crystal display (LCD) panel, comprising: a discharging resistor, wherein the discharging resistor is an adjustable resistor, and a resistance of the adjustable resistor is adjustable, the adjustable resistor is connected with a main function switch in series, and the adjustable resistor comprises a plurality of sub-resistors are connected in parallel, each sub-resistor is connected with a resistance regulating switch in series, and the resistance of the adjustable resistor is obtained by selecting the resistance regulating switch according to a digital control signal, wherein the adjustable resistor is a digital resistor, a resistance control signal corresponding to a value of the brightness difference between all areas of the LCD panel is saved in a memory module, and when the chamfer circuit is started, the chamfer circuit reads the resistance control signal in the memory module.