Driving circuit and liquid crystal display device thereof

A driving circuit, comprising:

• a power management chip, configured to generate data control voltages;
• a timing control chip, configured to provide a first timing control signal and a video signal;
• and
• a source driving chip, configured to convert the video signal into a plurality of gray scale voltages and to pre-acquire a relationship between a brightness and gray scales of a display panel and a relationship between the brightness and voltages of the display panel in a predetermined gamma curve, wherein the source driving chip acquires a relationship between the gray scales and the voltages after a voltage division is generated based on a relationship between the brightness and the gray scales and based on the relationship between the brightness and the voltages, and the source driving chip obtains the string of resistance values based on relationship between the brightness and the gray scales after the voltage division is generated, and wherein the data signal is generated according to the data control voltages, the first timing control signal, the video signal and the string of resistance values so that a display effect of the display panel meets a predetermined requirement.

A liquid crystal display device comprising a liquid crystal display panel and a driving circuit, the driving circuit comprising:

• a power management chip, configured to generate data control voltages;
• a timing control chip, configured to provide a first timing control signal and a video signal;
• and
• a source driving chip, configured to convert the video signal into a plurality of gray scale voltages and to pre-acquire a relationship between a brightness and gray scales of a display panel and a relationship between the brightness and voltages of the display panel in a predetermined gamma curve, wherein the source driving chip acquires a relationship between the gray scales and the voltages after a voltage division is generated based on a relationship between the brightness and the gray scales and based on the relationship between the brightness and the voltages, and the source driving chip obtains the string of resistance values based on relationship between the brightness and the gray scales after the voltage division is generated, and wherein the data signal is generated according to the data control voltages, the first timing control signal, the video signal and the string of resistance values so that a display effect of the display panel meets a predetermined requirement.