A method for inspecting a display panel includes capturing images of a
portion of a plurality of display panels having display elements with an
image acquisition device having sensor elements, each image comprising an
image of approximately a first number of display elements captured with
approximately a second number of sensor elements, the first number
different from the second number, each image including a Moire artifact
pattern, combining the images of the portion of the plurality of display
panels to form a reference image including a Moire artifact pattern
reference, capturing a sample image of a portion of a sample display
panel having display elements with the image acquisition device, the
sample image comprising an image of approximately the first number of
display elements on the sample display captured with approximately the
second number of sensor elements, the sample image including a sample
Moire artifact pattern, combining the sample image with the reference
image to inhibit the sample Moire artifact pattern from the sample image,
and to form a test image, determining defects in display elements in the
portion of the sample display panel by inspecting the test image, and
determining whether to reject the sample display panel in response to the
defects in the display elements.