Patent ID: 7024338

Claim:
A method of improving defect detection accuracy of an electrode array testing system, wherein the electrode array defines a plurality of pixels and wherein the electrode array testing system determines if a pixel is defective based on at least one thresholding parameter that controls a pass/fail criteria of each pixel during testing of the TFT panel, comprising: defining a critical number of defects; comparing a number of defects reported by the electrode array testing system “reported defects” to the critical number of defects; adjusting the at least one thresholding parameter if the number of reported defects is greater than the critical number of defects, until the number of reported defects is less than or equal to the critical number of defects, wherein the adjusting comprises, incrementally adjusting the at least one thresholding parameter by a first increment value until the number of reported defects is less than the critical number of defects to yield a first thresholding parameter value, subtracting one increment value from the first thresholding parameter value to yield a second thresholding parameter value, and incrementally adjusting the second thresholding parameter value by a second increment value until the number of reported defects is less than the critical number of defects to yield a final thresholding parameter value, wherein the second increment value is smaller than the first increment value.