公开(公告)号：US12073797B1

公开(公告)日：2024-08-27

申请号：US18468747

申请日：2023-09-18

Applicant: NOVATEK Microelectronics Corp.

Inventor： Ching-Hua Liu ,  Yen-Tao Liao

IPC: G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/2003 ,  G09G2300/0452 ,  G09G2310/08 ,  G09G2320/045 ,  G09G2360/16

Abstract: A driving method, for driving an organic light emitting diode (OLED) display panel, includes following steps. Input gray levels are received corresponding to red, green and blue subpixels on the OLED display panel. The input gray levels are mapped into current indices. A representative current index is calculated according to the current indices. The representative current index is compared with a current index threshold. In response to the representative current index being lower than the current index threshold, a voltage compensation value is generated according to the representative current index for shifting an initial voltage level utilized in an initial phase of the OLED display panel, and gray level compensation values are generated according to the current indices for adjusting the input gray levels into adjusted gray levels corresponding to the red, green and blue subpixels.