Power supply control device and display device
A technology of power supply control and gating control, applied in the field of signal processing, can solve the problems of high power consumption and high power consumption of display devices
Active Publication Date: 2019-03-01
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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Problems solved by technology
[0004] The existing power supply control device has a problem of high power consumption under low load conditions, which in turn leads to high power consumption of the display device
Method used
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[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0044] The terms "first", "second", "third" and "fourth" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily to describe a specific order or sequentially. It is to be understood that the data so used are interchangeable under appropriate circumstances such...
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The invention provides a power supply control device and a display device. For the power supply control device, through the real-time detection for screen load, when the detection shows that the screen load is relatively low, a first power supply drive module is adopted as a power supply driver of a screen, when the detection shows that the screen load is relatively high, a second power supply drive module is adopted as a power supply driver of the screen through switchover, wherein for the first power supply drive module, when the load is smaller than the preset load threshold value, the conversion efficiency is higher than that of the second power supply drive module, for the first power supply drive module, when the load is greater than or equal to the preset load threshold value, the conversion efficiency is lower than that of the second power supply drive module, therefore, along with the change of the screen load, the corresponding power supply drive module is enabled to work through switchover, then the high conversion efficiency and low power consumption under various loads are maintained, and finally, the lower-power-consumption work under various display conditions of thedisplay device is realized.
Description
technical field [0001] The invention relates to signal processing technology, in particular to a power supply control device and a display device. Background technique [0002] With the advancement of display technology, display devices have more and more functions, and the requirements for power consumption are getting higher and higher. The display device displays different contents according to the input data signal, and the power supply control device connected to the screen body provides the screen body with electric energy meeting its lighting requirements. [0003] The power supply control device of the existing display device usually uses pulse width modulation PWM information to control the buck-boost circuit (also known as: buck-boost chopper) to supply power to the display screen, and the load of the display device changes dynamically with the change of the display content. Change, the PWM signal controls the buck-boost circuit to perform corresponding step-up or...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G09G3/20
CPCG09G3/20G09G2330/021
Inventor 韦凡刘欢
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD