LCD BACKLIGHT MODULE AND METHOD FOR CONTROLLING THE SAME

摘要

The present invention discloses an LCD backlight module, which includes a backlight source and a backlight source control device, the backlight source control device comprising: a first switch; a boost module; a control module, utilized to control the first switch, so that the backlight source is switched on off under the control of the control module, and utilized to control the boost module, so that the boost module keeps outputting the voltage after the backlight source is turned off by the first switch.

主权项

1. An LCD backlight module, comprising:
a backlight source; and a backlight source control device; the backlight source control device comprising:
a first switch, utilized to control the backlight source on and off;a boost module, utilized to output a voltage to the backlight source; anda control module, electrically coupled to the first switch and the boost module, utilized to control the first switch, so that the backlight source is switched on and off under the control of the control module, and utilized to control the boost module, so that the boost module keeps outputting the voltage after the backlight source is turned off by the first switch;wherein the control module is further utilized to receive a backlight ON signal, and to control the boost module according to a high or low level of the backlight ON signal;wherein the control module is further utilized to control the boost module to output the voltage to the backlight source while the backlight ON signal is in the low level;wherein the control module is further utilized to control the boost module to keep outputting the voltage to the backlight source in a predetermined time after the backlight source is turned off by the first switch.