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

Display calibrating method

A calibration method and display technology, applied to static indicators, cathode ray tube indicators, instruments, etc., can solve the problems of uniformity deterioration, color deviation, display characteristic deviation, etc., and achieve the effect of simple structure and easy embedding

Active Publication Date: 2015-02-18
NANJING PANDA ELECTRONICS MFG
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The M value can reflect the luminous characteristics of the primary color in a relatively simple way, but for different screens, since the luminous characteristics of the primary color cannot be guaranteed to be completely consistent, the tristimulus value of the color corresponding to the driving signal of the primary color cannot be guaranteed to be consistent, resulting in color deviation or uniformity Sexual variation
Due to the manufacturing process, the same driving signal of the same batch of products will have different display characteristics, which will be particularly serious in the uniformity of the splicing screen
At the same time, due to the life of the display device, long-term use will also change the photoelectric characteristics of the display screen, resulting in deviations in display characteristics.

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
  • Display calibrating method
  • Display calibrating method
  • Display calibrating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] The hardware structure of the present invention is as figure 1 As shown, the system comprises a display 1, a signal processing device 2, a measuring device 3 including a light sensor.

[0031] The display 1 generally uses more than three primary colors to achieve the target color by using the principle of linear color mixing. As most common, use red (R) green (G) blue (B) three primary colors to achieve the target color X Y Z t . According to the principle of color mixing, driving the brightness of the primary color of the display 1 can realize display effects of different brightness and different colors.

[0032] The signal processing...

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 invention discloses a display calibrating method and device. A measuring device comprising a photo sensor measures screen performance parameters including primary color coordinates, tristimulus values obtained when displaying is the maximum brightness white, tristimulus values obtained when displaying is the minimum brightness black, and photoelectricity tuning curves of primary colors. The measured parameters are transmitted to a signal processing device, and the signal processing device generates calibration data according to obtained data and the specific calibration algorithm and stores the calibration data in a nonvolatile storage. After that, external video signals are calibrated in real time based on calibration data. The display calibrating method can be used for calibrating uniformity, colors and brightness of single screens or spliced screens in the production process or the using process.

Description

technical field [0001] The invention relates to a screen calibration method and device, which can be used for screen uniformity, color and brightness correction during production and use. Background technique [0002] With the development of technology, display devices are widely used on various carriers, and people's requirements for display devices are also getting higher and higher. However, due to the limitations of the current production process and other restrictions, the performance level and production consistency of the display need to be improved. At the same time, due to the characteristics of the service life of the display device, there will be changes in the photoelectric properties after a period of use, resulting in changes in uniformity, color, and brightness. At this time, it is necessary to perform a series of calibrations on the display to make it reach or approach the desired display characteristics. [0003] Display calibration is through the combinat...

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): G09G5/00
Inventor 翁一士刘奡张宇宁李晓华
Owner NANJING PANDA ELECTRONICS MFG
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