Patent ID: 11967608
Assignee: DONGBANG DATA TECHNOLOGY CO., LTD
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A pixel integrate scanning (PIS) distributed type automatic power-saving electronic display board comprising: an image signal source configured to supply an image signal to be displayed on an LED electronic display board module; a main control unit (MCU) configured to allow a PIS power-saving controller to histogram-equalize the image signal inputted from the image signal source to set a value of a current flowing through an LED, and allow a gain controller to compare the set current value with a difference between an image reference value of a gamma controller and a correction value of the histogram-equalized image and determine a change in a subtraction loss value based on a power consumption difference of a display image in consideration of image quality change, brightness, and image size to designate a current value for display on the electronic display board and transmit corresponding image information so that a power-saving operation is performed; a sub-control unit (SCU) configured to transmit, as a signal with a PIS DATA value, a difference between pre-correction and post-correction images, to the LED electronic display board module to be displayed on the LED electronic display board module, based on a value determined by allowing the gain controller to compare the current value set by allowing the PIS power-saving controller of the MCU to histogram-equalize the image signal with the difference between the image reference value of the gamma controller and the correction value of the histogram-equalized image; an LED electronic display board module configured to form a screen by arranging, in a matrix form, a unit display module in which a plurality of LEDs are arranged for each of n×m Dot RGB pixels in the form of a module array, and receive and display image information according to the correction value of the image histogram-equalized by the PIS power-saving controller and the change in the subtraction loss value compared and distributed by the gain controller based on the image reference value of the gamma controller in response to the image signal inputted through an image input device.