As we know, OLED has a short lifetime compared with LCD, due to its material characteristic[1], which leads to a fact that improved performance of lifetime in OLED display , especially vehicle OLED products is one of the most important factors in display market development of OLED. In this paper, a novel algorithm for luminance attenuation in OLED was proposed, using the method of statistical regularity.

In this paper, a method of reducing the influence of IR‐drop in OLED display for color gamut mapping (CGM) is described. Due to the IR‐drop, the parameters can be hardly calculated only by formulas, which make the inaccuracy of CGM. This algorithm uses the IR‐drop data of specific gray scale data to find out the IR‐drop rule of arbitrary gray scale. The method is easy and accurate to reduce the influence of IR‐drop, making the CGM better applied to OLED displays.

This paper presented a new design of boost circuit in pixel, which could meet the demand for high driving voltage in some special applications and avoid the increasing cost caused by using chips with high‐voltage output. The main circuit of pixel unit contained 3 TFTs and 3 capacitors. Compared with conventional TFT‐LCD, 2 new kinds of signals were added. 1 clock signal was shared by all pixels and 1 additional scanning signal was designed for each row. Through reasonable circuit parameters and timing design, the circuit scheme proposed in this paper could achieve effective boost. The simulation showed the pixel voltage was increased by 60%, compared with the voltage provided by the data line. In the actual sample verification, the voltage was increased by 50%. Therefore, the feasibility of circuit function was verified. Details of design, simulation and verification would be introduced in the text.