The invention discloses a data transmission method and a component, and a display device and belongs to the display manufacturing field. The method is used for a time schedule controller. The method comprises the following steps of after a clock is calibrated, sending preset link stability verification data to a source driving chip; receiving feedback information sent by the source driving chip, wherein the feedback information is generated by the source driving chip when determining that the received link stability verification data is correct; and based on the feedback information, sending target data to the source driving chip. In the invention, problems that the reliability and the stability of data transmission are poor are solved, the effects of increasing the reliability and the stability of data transmission are realized and the method and the component are used for the display device.