Controller with an Area Compensated Look-Up-Table for Improving the Luminance Uniformity on Lighting Passive Matrix Organic Light Emitting Diode Panels

A driving system is presented for generating a uniform luminance picture on passive matrix organic light emitting diode (PMOLED) panels in this paper. Especially, the controller overcomes the problem of luminance non-uniformity on displaying pictures. Because the controller is a voltage type driver, the output impedance of the driver is much less than that of the current-type driver. Hence, the controller provides a better electron-optical response than those of traditional current drivers. According to the linear interpolation theorem, we designed an area compensated look up table (ACLUT) with compensation data to improve the luminance uniformity on lighting a PMOLED panel. By applying the proposed driver to light PMOLED panels, the luminance uniformity of the PMOLED panel is improved from 88% to 98%