LED energy-saving display method, LED display screen system, and LCD display device

Abstract

The invention provides an LED energy-saving display method, an LED display screen system, and an LCD display device. The method comprises the following steps: acquiring multiple boundaries of an original image with the brightness change gradients greater than a certain threshold according to the dynamic range of a display device; segmenting the multiple boundaries in a non-overlapping way to form multiple image brightness intervals; keeping the edge brightness gradient in the multiple image brightness intervals unchanged, and attenuating the high-brightness part in the image brightness intervals to form a corrected image; and sending the corrected image to the display device for display. By making use of the illusion effect of human eyes' focus on the sharp edge and using a Countershading method, the purpose of LED energy saving is achieved under the condition of keeping the global perception contrast unchanged.

Description

technical field [0001] The invention relates to image processing technology, in particular to an LED energy-saving display technology, an LED display screen system and an LCD display device. Background technique [0002] Large-scale full-color LED displays are widely used outdoors or indoors, such as shopping malls, road traffic, bulletin boards, etc., are widely using LEDs. With the development of modernization, the continuous consumption of energy, the continuous shortage of resources, and the continuous expansion of production scale, the further energy saving of LED display screens is a hot spot in the current LED full-color display industry. At present, the energy-saving solutions proposed by the LED industry include: [0003] 1) Start with the power supply. Directly adopt half-bridge or full-bridge high-efficiency switching power supply on the existing LED display, coupled with synchronous rectification, the energy-saving effect is remarkable. In the state of constan...

AI Technical Summary

Problems solved by technology

[0004] 2) Reduce the brightness of the display

The smaller the maximum contrast, the image will appear gray and lack sufficient layering and contrast, which directly affects the perception of the human eye

Adjusting the brightness of the display should be based on the human visual system, and should minimize the loss of perception to the human eye. Therefore, reducing the brightness of the display is not a good solution

[0005] For the above two solutions, the former increases the operating cost, and the energy saving effect is not obvious from the screen driver IC; while the latter reduces the brightness, the image contrast decreases and the display quality deteriorates

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