Application of machine vision in COB LED display module ink collection, classification and sorting

Bai-song LI; Hui CAO; Zi-cheng XU; Hong-bin CHENG; Yang WANG; Xi-feng ZHENG

doi:10.37188/CJLCD.2021-0020

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Application of machine vision in COB LED display module ink collection, classification and sorting

Device Physics and Device Preparation | 更新时间：2021-07-13

- Application of machine vision in COB LED display module ink collection, classification and sorting
- Chinese Journal of Liquid Crystals and Displays Vol. 36, Issue 7, Pages: 964-972(2021)
- 作者机构：
  
  1.长春希达电子技术有限公司, 吉林长春 130103
  2.中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
- 基金信息：
  
  High Tech Industrialization Project of Science and Technology Cooperation between Jilin Province and Chinese Academy of Sciences(2020SYHZ0006)
- DOI：10.37188/CJLCD.2021-0020
  CLC： TP273;TN27
- Received：21 January 2021，
  
  Revised：15 March 2021，
  
  Published：2021-07
- 稿件说明：
移动端阅览
Bai-song LI, Hui CAO, Zi-cheng XU, et al. Application of machine vision in COB LED display module ink collection, classification and sorting[J]. Chinese journal of liquid crystals and displays, 2021, 36(7): 964-972.
DOI：

Bai-song LI, Hui CAO, Zi-cheng XU, et al. Application of machine vision in COB LED display module ink collection, classification and sorting[J]. Chinese journal of liquid crystals and displays, 2021, 36(7): 964-972. DOI： 10.37188/CJLCD.2021-0020.

摘要

在COB LED显示屏黑场时可能会出现肉眼可见的COB LED模组间的墨色差异性。为了保证同一面COB LED显示屏的墨色一致性，本文对COB LED显示模组的墨色采集、分类、排序算法进行了研究。首先介绍了基于机器视觉COB LED显示模组的墨色采集方法，然后针对视觉观看COB LED显示屏墨色最优效果进行墨色采集装置的研制，接着采用基于机器视觉的墨色分类、排序算法，完成了COB LED显示模组墨色采集和自动排序软件平台。最后通过工程案例实验，验证了基于机器视觉的COB LED显示模组墨色采集、分类、排序方案的可实施性，满足了人眼视觉在观察一面COB LED显示屏时的墨色一致性感受。

Abstract

When the COB LED display screen is black

the ink color difference between COB LED modules may appear. In order to ensure the consistency of ink color on the same side of COB LED display

this paper studies the ink color collection

classification and sorting algorithm of COB LED display module. Firstly

the ink color acquisition method based on machine vision COB LED display module is introduced

and then

the ink color acquisition device aiming at the optimal effect of viewing COB LED display screen ink color by vision is developed. The COB LED display is completed by using the ink color classification and sorting algorithm based on machine vision. Finally

through the engineering case experiment

the feasibility of COB LED display module ink color collection

classification and sorting scheme based on machine vision is verified

which meets the consistent feeling of human vision as observing a COB LED display.

关键词

Keywords

references

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Related Institution

Changchun Institute of Optics， Fine Mechanics and Physics， Chinese Academy of Sciences

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