Patent ID: 10878738

Abstract:
A display product and a drive chip for driving a display panel are provided. The drive chip includes a gamma voltage divider circuit, which includes a voltage-dividing resistor string, consisting of resistors connected in series, configured to generate binding-point grayscale voltages; OPs, each of which is disposed at an output channel of the binding-point grayscale voltage, each OP having a positive power end receiving a first voltage and a negative power end receiving a second voltage, the first voltage greater than the second voltage; a low-voltage stabilized supply, providing the fixed second voltage to the negative power end; and a DAC, providing the first voltage to the positive power end. The first voltage provided by the DAC is dynamically adjusted based on grayscale or data voltages that are to be inputted to the display panel. By this way, the power loss of the drive chip is reduced.