The invention provides a novel display panel surface defect detection
system. A defect identification subsystem comprises an
image acquisition device, a main optical unit, an auxiliary optical unit and an
image processing unit. The
image acquisition device is connected with the
image processing unit; and the display panel surface defect detection
system further comprises a reversible double-sidedadsorption device and a
light source brightness self-adaptive adjustment
system. The display panel surface defect detection system has the advantages that: (1) in the bad identification subsystem, theimage
processing unit can simply and quickly distinguish real bad defects and surface foreign matters in a picture, and the system has the advantages of the simple
image processing process, the highspeed and the high efficiency; (2) in the reversible double-sided adsorption device, a panel is adsorbed from a bottom surface, the adsorption is stable and reliable, and the
machine vision photographing is not influenced; and the double-sided adsorption structure can rotate the panel by 180 degrees and can stably adsorb the panel again; and (3) the
light source brightness self-adaptive adjustmentsystem can greatly prolong the service life of the
light source, can improve the activation rate of the device and can effectively reduce the maintenance cost of the device.