42.2: Time Division Analog Driving Method to Display High Gray‐scale of OLED Display

Abstract

To raise gray‐scale, the size of DAC should be increased on driver ICs at LCD or OLED display using an analog driving method. This factor makes problems such as size and costs of a driver IC. To overcome these obstacles, this paper proposes method to display high gray‐scale without changing driver IC size. This method has a feature which is combined a digital driving technique and an analog driving technique. To implement this method, a frame should be divided into two sub‐frames which have different roles. The first sub‐frame displays an image and the second one displays additional gray‐scale which can not be displayed on the first sub‐frame. Also each sub‐frame has different gamma voltages to implement high gray‐scale.

50.3: A Novel Power Saving Technology for OLED TV with External TFT Compensation

“…It can be a marked result to reduce power consumption and increase gray scale in a display [3]. And it can make more perfection large sized OLED display using 'external compensation technology'.…”