Patent ID: 9329829
Filing Date: 2016-05-03
CPC Classification: G06F,G06T,G09G

Claim Text:
1. A synchronous display method of a spliced display screen which comprises at least two spliced display units and at least two timing controllers respectively corresponding to the spliced display units, the method comprising steps of: receiving, by each timing controller, a timing control signal for a current frame of a spliced display unit corresponding to the timing controller, feedback from the corresponding spliced display unit; determining, by each timing controller, a phase difference between the timing control signal for the current frame of the corresponding spliced display unit and a reference timing control signal received by the timing controller; judging, by each timing controller, whether or not the phase difference goes beyond a predetermined threshold range; if it is judged that the phase difference goes beyond the predetermined threshold range, generating a phase adjustment value by the timing controller based on the phase difference, wherein the phase adjustment value is less than the phase difference; generating, by each timing controller, a next timing control signal for a next frame of the corresponding spliced display unit based on the phase adjustment value, so that a next phase difference between the next timing control signal for the next frame and the reference timing control signal is equal to the phase adjustment value; and outputting the generated next timing control signal for the next frame to the corresponding spliced display unit.