Patent ID: 8760458
Filing Date: 2014-06-24
Classification: G09G,Y02B

Abstract:
1. A scan-type display device control circuit, suitable for receiving a plurality of successive frame data and driving a light-emitting diode (LED) display device accordingly, comprising: a ping-pong buffer, comprising a first storage area and a second storage area; a data storage controller, for receiving the frame data in sequence and storing the frame data in the first storage area or the second storage area alternately; a line scan controller, logically connected to the ping-pong buffer, for capturing a plurality of line data of the frame data from the first storage area or the second storage area alternately; a display buffer, logically connected to the line scan controller, for temporarily storing the line data; and a scrambled pulse width modulation (PWM) signal generating device, logically connected to the display buffer or the line scan controller, wherein the scrambled PWM signal generating device captures the line data and generates a scrambled PWM signal according to the line data; wherein for each frame,