Display driving circuit built in Half VDD power supply circuitand display driving system comprising the same

The present invention relates to and a display driving system as a display drive circuit, and more particularly, a top-level voltage (VDD) terminal, and the lowest voltage (VSS) terminal thereof intermediate voltage (H-VDD) terminal in addition to the driving circuit to the display driver circuit the present invention relates to a display driving system comprising top voltage and not received an intermediate voltage of the lowest-voltage supply from the external power supply to a display driving circuit is an intermediate voltage power supply circuit for supplying to internally generated internal to the display driving circuit, and this by having.