Power reduction technique for digital display panel with point to point intra panel interface

摘要

A system and method are disclosed to control the power consumption of column drivers in a display system. A video input signal is received which has an active video period and a vertical blanking period between frames. A timing controller transmits a first video frame to a column driver. The timing controller transmits a column driver disable command during a vertical blanking period. Prior to the subsequent active video period, the timing controller transmits a column driver enable command. The timing controller proceeds to transmit a second video frame to the column driver. In one embodiment, the timing controller determines whether to disable and enable the column driver based on a refresh rate, the refresh rate calculated by the timing controller from the video input signal.

主权项

1. A method for controlling plurality of column drivers of a display panel, the method comprising:
receiving a video input signal comprising video frames; determining a refresh rate from the video input signal; transmitting a first video frame to a column driver of the plurality of column drivers, the first video frame calculated based on the video input signal; transmitting a column driver disable command to the column driver responsive to the determined refresh rate being below a refresh rate threshold; transmitting a column driver enable command to the column driver after a predetermined time period; and transmitting a second video frame to the column driver after transmitting the column driver enable command, the second video frame calculated based on the video input signal.