| Abstract: | Abstract— Test equipment for reflective LCD devices must use a calibration target to mimic a known state of the intended display devices under test (DUTs). This target must also mimic the polarization effects of the DUTs. Traditionally, a mirror and quarter‐wave plate (MQWP) assembly is used for this function. By accounting for the reflectivity of the mirror and the transmission of the QWP, a reference target can be generated. The effects of the use of a QWP in this role will be examined and additional effects for which compensation must be performed in order to achieve accurate test results will be discussed. |
