569173 is referenced by 57 patents.

The present invention provides a driver for controlling display cycle of OLED and its method. The driver includes: a current buffer, a switch unit and PWM gray-level control unit. The current buffer is connected to a current source providing a constant current. The switch unit is connected to a precharge voltage source, the current buffer and an analog ground, and has an output terminal connected to the OLED. The PWM gray-level control unit is connected to a memory and the switch unit for receiving a start signal and then performing gray-level display control based on an image data transmitted from the memory. The gray-level control method performs rational partition on gray-level display time based on the display level in the display cycle, and respectively corresponds to a ratio based on the gray-level value corresponding to the image data. After receiving the image data, the driver performs conducting time control for the current buffer and OLED based on the corresponding gray-level display time, thereby achieving the purpose of gray-level display control.

Title
Driver for controlling display cycle of oled and its method
Application Number
091118049
Publication Number
569173
Application Date
August 5, 2002
Publication Date
January 1, 2004
Inventor
Peng Jen Chun
Assignee
Etoms Electronics
IPC
G09G 003/20