Display driver chip, display driver chip module and display device

The present invention relates to the technical field of displays. Provided are a display driver chip (1), display driver chip module and display device capable of solving the improper display problem in existing display devices due to impedance mismatch. The display driver chip (1) comprises: a plurality of output ports for outputting a drive signal; a drive circuit (11) used to generate a drive signal and connected to the plurality of output ports; and a chip impedance matching unit (21) of a definite impedance value disposed between at least one output port and the drive circuit (11). The display driver chip (1) can be used for a display device having an active drive array, such as a liquid crystal display device, an organic light emitting diode (OLED), etc., and is particularly suitable for a display device employing narrow-frame, double-grid, triple-grid and high-frequency drive technologies.