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Calibration method, device and system for color and brightness of LED spherical display screen

A technology for displaying screens and calibration methods, applied to static indicators, instruments, etc., can solve problems such as high error rate, low calibration accuracy, and low efficiency, and achieve the effect of reducing calibration error rate and improving calibration accuracy and efficiency

Inactive Publication Date: 2019-07-30
WANDA CULTURAL TOURISM PLANNING & RES INST
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  • Application Information

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Problems solved by technology

However, the way of manual calibration has low calibration accuracy, high error rate and low efficiency

Method used

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  • Calibration method, device and system for color and brightness of LED spherical display screen
  • Calibration method, device and system for color and brightness of LED spherical display screen
  • Calibration method, device and system for color and brightness of LED spherical display screen

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Embodiment Construction

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0052] The method for calibrating the color and brightness of the LED spherical display screen provided in this embodiment divides the LED spherical display screen into multiple detection areas. For each detection area, a detection device is used to detect color and brightness. Specifically, how many detection areas the LED spherical display screen is divided into is determined according to the size of the LED spherical display screen, so as to ensure that eac...

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Abstract

The invention provides a calibration method, device and system for color and brightness of a LED spherical display screen. The method comprises: sending a calibration instruction to a controller of the LED spherical display screen, and the calibration instruction comprising a target color and target brightness, so that the controller controls each LED module of the LED spherical display screen towork according to the target color and the target brightness; comparing the actual color and the actual brightness of each detection area with the target color and the target brightness respectively,calculating to obtain a color adjustment value and a brightness adjustment value of each detection area, and sending the color adjustment value and the brightness adjustment value to a controller of the LED spherical display screen to adjust the color and the brightness of an LED module of each detection area. The automatic calibration of the color and the brightness of the LED spherical display screen are realized. Compared with a manual correction mode, the calibration error rate is reduced, and the calibration precision and the calibration efficiency are improved.

Description

technical field [0001] The present invention relates to the field of LED spherical display screens, more specifically, to a method, device and system for calibrating the color and brightness of LED spherical display screens. Background technique [0002] LED (light emitting diode, light emitting diode) is made of compounds containing gallium (Ga), arsenic (As), phosphorus (P) or nitrogen (N). Gallium arsenide phosphide diodes emit red light, gallium phosphide diodes emit green light, and indium gallium nitride diodes emit blue light. Three kinds of LEDs that emit red light, green light and blue light are packaged together as an LED module of the LED spherical display screen. LED spherical display screens such as dome screens and dome screens are composed of small LED modules to display images, which can enhance the sense of immersion in watching movies. [0003] Due to the differences in the manufacture of various LEDs, the differences in the lighting angles of LEDs and ot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/00
CPCG09G3/006G09G3/32G09G2320/0626G09G2320/0666
Inventor 李峻王丹陈德润
Owner WANDA CULTURAL TOURISM PLANNING & RES INST
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