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Method, device and system for correcting LED lamp panel

A technology of LED light boards and calibration methods, which is applied to static indicators, instruments, etc., can solve problems such as inaccurate point positioning, affect color correction efficiency, and increase the difficulty of point positioning, and achieve the effect of improving calibration efficiency

Pending Publication Date: 2021-11-12
XIAN NOVASTAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small spacing between the dots on the LED light board, the LED light points in the full-brightness correction image of the same color LED light points collected when performing color correction on the LED light board, such as brightness correction or brightness chromaticity correction, are relatively dense, resulting in subsequent The difficulty of point positioning in the image processing process increases, and in severe cases, point positioning will be inaccurate, which will affect the efficiency of color correction

Method used

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  • Method, device and system for correcting LED lamp panel
  • Method, device and system for correcting LED lamp panel
  • Method, device and system for correcting LED lamp panel

Examples

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no. 1 example

[0031] The first embodiment of the present invention provides a method for calibrating LED lamp panels, which is suitable, for example, to adopt figure 1 A calibration system 10 for an LED lamp panel is shown. Such as figure 1 As shown, the correction system 10 includes: a host computer 11 with correction software installed, a sending card 13, a receiving card 15 and an image acquisition device 17, which can be used to perform color correction such as brightness correction or bright color for the LED lamp panel 100 to be corrected. degree correction. In this embodiment, the host computer 11 is, for example, a PC (Personal Computer) with calibration software installed, and the installed calibration software is, for example, NovaCLB software developed by Xi'an Nova Nebula Technology Co., Ltd. or other similar software. Furthermore, the host computer 11 can send an image display signal to the LED light board 100 through the sequentially connected sending card 13 and the receivi...

no. 2 example

[0050] see Figure 8 An embodiment of the present invention provides a calibration device 80 for an LED lamp board, the LED lamp board includes a circuit board and a plurality of COB-type LED modules welded on the circuit board (such as figure 2 shown), each of the COB-type LED modules includes a plurality of LED pixels controlled independently of each other, and each of the LED pixels includes a plurality of LEDs of different colors; the correction device 80 includes: including: a display control module 81, Acquisition control module 83 and coefficient generation module 85 .

[0051] Wherein, the display control module 81 is, for example, used to control the plurality of chip-on-board LED modules to display a plurality of correction images in a target lighting manner, wherein the target lighting manner includes: for the plurality of correction images Any correction image of the plurality of chip-on-board LED modules is controlled to turn on each LED of the same color in the...

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Abstract

The embodiment of the invention relates to a method, a device and a system for correcting an LED (light-emitting diode) lamp panel, which adopt a specific lightening control mode for the LED lamp panel using a COB (chip on board) type LED module as a light-emitting unit. In other words, LEDs with the same color in a plurality of LED pixels in the COB type LED modules at the designated positions in the plurality of COB type LED modules on the LED lamp panel are controlled to be lightened every time, but a plurality of LED pixels of the COB type LED modules at the peripheral positions adjacent to the COB type LED modules at the designated positions in the plurality of COB type LED modules are not controlled to be lightened; therefore, as the pixel point spacing of the LED lamp panel becomes smaller and smaller, a more accurate point positioning result can still be obtained, and the correction efficiency can be further improved.

Description

technical field [0001] The invention relates to the technical field of display calibration, in particular to a calibration method for an LED lamp panel, a calibration device for an LED lamp panel, and a calibration system for an LED lamp panel. Background technique [0002] With the rapid development of the LED industry, LED displays, as a flat panel display device, are widely used in various occasions of daily life. The reason why LED display is widely used and developed rapidly is inseparable from its own advantages. These advantages include: high brightness, low working voltage, low power consumption, free assembly, large screen, long life , low failure rate, impact resistance, stable performance, high visibility, and easy matching with integrated circuits. Based on semiconductor technology that has been booming for decades, LED display has a series of advantages such as adjustable brightness range, safety and environmental protection, energy saving, bright color, large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/32G09G2320/0271G09G2320/0626
Inventor 杨城来浩坤殷雷刘宝华樊兴旺
Owner XIAN NOVASTAR TECH