The invention relates to the technical field of fault diagnosis, in particular to a
big data-based display fault
prediction system, which comprises a gray-scale synchronization module, a fluctuation identification module, a stage judgment module, a trajectory comparison module and a trend early warning module, analyzes gray-scale
time sequence data output by a gray-scale optical acquisition instrument based on a
display device, and determines whether a fault occurs or not by checking
data integrity. And comparing the gray scale content of each frame with a driving
chip synchronizing signal. According to the invention, by checking the
synchronism and sequence integrity of the collected data, accurate arrangement of information on a multi-
time sequence level, continuity analysis based on a change track and feature node extraction are realized, the difference expression of a key moment and a turning point of a focusing stage in a display process is clarified, and the brightness and a gray scale correlation trend are subjected to multi-dimensional comparison, so that the accuracy of the display process is improved. The dynamic state of the
risk area is comprehensively assessed in combination with the trend continuity between the nodes, the capability of capturing display abnormal symptoms is improved, early sensing and timely early warning are realized, and the stability and
risk prevention capability of fault prediction of the
display device are effectively enhanced.