Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method, device and system for correcting LED display device

A technology of a display device and a correction method, 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 correction efficiency

Pending Publication Date: 2021-11-12
XIAN NOVASTAR TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the small dot pitch on the LED unit board, it makes the color correction of the LED display screen or LED display box spliced ​​by the LED unit board, such as brightness correction or brightness chromaticity correction. The LED light points in the bright correction image are relatively dense, which increases the difficulty of point positioning in the subsequent image processing process. In severe cases, it will cause inaccurate point positioning, which will affect the efficiency of color correction.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method, device and system for correcting LED display device
  • Method, device and system for correcting LED display device
  • Method, device and system for correcting LED display device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0030] A calibration method for an LED display device provided by the first embodiment of the present invention, for example, is suitable for using figure 1 A calibration system 10 for an LED display device is shown. Such as figure 1 As shown, the correction system 10 includes: a host computer 11 installed with correction software, a system controller 13 and an image acquisition device 17, which can be used to perform color correction such as brightness correction or brightness chromaticity correction on the LED display device 100 to be corrected. Furthermore, if Figure 2A As shown, the LED display device 100 is an LED display box, which includes a plurality of LED unit boards 101 spliced ​​together and a module controller 103 electrically connected to the plurality of LED unit boards 101; but the present invention The embodiment is not limited thereto, and the LED display device 100 may also be composed of multiple Figure 2A The shown LED display cabinets are spliced ​​t...

no. 2 example

[0046] see Figure 7 An embodiment of the present invention provides a calibration device 70 for an LED display device. The LED display device includes a plurality of LED unit boards spliced ​​together and a module controller electrically connected to the plurality of LED unit boards (such as Figure 2A and Figure 2B shown), each of the LED unit boards includes a circuit board and a plurality of COB-type LED modules arranged on the circuit board so that the plurality of COB-type LED modules of the plurality of LED unit boards together form a COB type LED module array, each of the COB type LED modules includes N×M LED pixels that are independently controlled and arranged in rows and columns, N and M are positive integers greater than or equal to 2, and the N×M LED pixels They respectively correspond to N×M pixel positions, and each LED pixel includes a plurality of LEDs of different colors. The correction device 70 includes: a display control module 71 , an acquisition contr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention relates to a method, a device and a system for correcting an LED (Light Emitting Diode) display device, which adopt a specific lightening control mode for the LED display device using a COB (Chip On Board) type LED module as a light emitting unit. In other words, the same-color LEDs of the LED pixels, located at the same pixel position in the N * M pixel positions, of the chip-on-board LED modules in the chip-on-board LED module array are controlled to be lightened every time so as to display a corrected image; a plurality of LED pixels, which are respectively positioned at the N * M pixel positions, of each chip-on-board LED template are sequentially controlled to be lightened so as to display a plurality of corrected images; therefore, as the pixel point spacing of the LED display device, such as an LED display screen or an LED display box body, 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 display device, a calibration device for an LED display device, and a calibration system for an LED display device. 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 c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com