Patent ID: 7358757

Claim:
An inspection method for inspecting a display apparatus, said apparatus comprising: a substrate carrying a plurality of pixel cells arranged to form a matrix, each having a pixel switch and a pixel capacitance connected to the pixel switch and adapted to hold the pixel data written by way of a data line; a gate line drive circuit for sequentially driving a plurality of gate lines connected to the pixel switches; and a data line drive circuit for sequentially driving a plurality of data lines; the method comprising: detecting short-circuiting in each of the data lines by inputting to a corresponding comparator circuit selected from a first set of comparator circuits a corresponding input electric potential of the data line, wherein, the data line is connected to a corresponding resistor, said corresponding resistor being one of a first set of high ON resistance short-circuit-detecting resistors, the resistor connecting a predetermined electric potential and the data line; and comparing the input electric potential of the data line to at least one of a reference potential and an expected value of the input potential of the data line, so as to binarize and output the outcome of the comparison; and detecting short-circuiting in each of the gate lines by inputting to a corresponding comparator circuit selected from a second set of comparator circuits a corresponding input electric potential of the gate line, wherein, the gate line is connected to a corresponding resistor, said corresponding resistor being one of a second set of high ON resistance short-circuit-detecting resistors, the resistor connecting a predetermined electric potential and the gate line; and comparing the input electric potential of the gate line to at least one of a reference potential and an expected value of the input potential of the gate line, so as to binarize and output the outcome of the comparison.