Control chip, control method, display device and control host machine

The invention discloses a control chip, a control method, a display device and a control host machine. The control chip comprises a use time acquisition module for obtaining the current use time of an OLED display panel, a data table reading module used for reading a brightness compensation data table matched with the current use time, a processing module used for obtaining the data information after the brightness compensation of a target gray coordinate according to a first standard gray coordinate and corresponding color doped voltage drop information, and a driving module which is used for driving the OLED display panel to carry out image display according to the data information after the brightness compensation of the target gray coordinate, wherein the brightness compensation data table has multiple first standard gray coordinates and corresponding data information after brightness compensation. According to the technical scheme of the invention, the problems of white balance offset of the OLED display panel and a yellow display image are solved, and the display effect of the image is good.