Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for adjusting gamma curve

A gamma curve and adjusted technology, applied in the field of gamma curve adjustment, can solve problems such as time-consuming and repetitive work, and achieve the effects of ensuring accuracy, meeting mass production requirements, and improving work efficiency

Active Publication Date: 2019-01-22
BOE TECH GRP CO LTD +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current automatic gamma adjustment equipment will adjust the gray scale binding point according to the characteristics of the corresponding driver IC when debugging each module, so that there will be a lot of repetitive work during mass production, because in the actual debugging process There will be many gray-scale binding points where the gray-scale brightness values ​​meet the requirements, but during mass production, as product differences gradually decrease, this adjustment method will further increase the repetitive work and consume a lot of time

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 and device for adjusting gamma curve
  • Method and device for adjusting gamma curve
  • Method and device for adjusting gamma curve

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0051] see figure 1 , the figure shows a method of adjusting the gamma curve, the specific steps are as follows:

[0052] Step S101, obtaining the gamma curve of the debugging module.

[0053] The above gamma curve represents the non-linear relationship between the display brightness of the debugging module and the input voltage.

[0054] Optionally, the above-mentioned gamma curves include an R component gamma curve, a G component gamma curve, and a B component gamma curve. In step S101, white balance adjustment is performed on the debugging module, for example, L255 is performed through an existing algorithm. Adjust the white balance, and then read the RGB components of the adjusted module to obtain the gamma curve of the debugged module.

[0055] Specifically, adjust the white balance of the debugging module, then determine the picture according to the characteristic data of the driver IC of the debugging module, and read the grayscale brightness value of the R component,...

no. 2 example

[0073] see figure 2 , the figure shows a method of adjusting the gamma curve, the specific steps are as follows:

[0074] Step S201, building a standard gamma curve library.

[0075] Specifically, the characteristic data of the driver IC of the debugging module is collected, and a standard gamma curve library is established according to the collected characteristic data of the driver IC.

[0076] In this embodiment, since the standard gamma curve library is established according to the collected characteristic data of the driver IC of the debugging module, each standard gamma curve in the standard gamma curve library (for example, including the standard R component gamma Curve, standard G component gamma curve, standard B component gamma curve) can better reflect the characteristics of the driver IC of the debugging module, thereby improving the accuracy of gamma adjustment.

[0077] The following takes the gamma 2.2 standard library as an example, first collect the charact...

no. 3 example

[0095] see Figure 8 , the figure shows a device for adjusting the gamma curve, including:

[0096] Obtaining module 801, used to obtain the gamma curve of the debugging module;

[0097] A comparison module 802, configured to compare the gamma curve of the debugging module with a standard gamma curve, the standard gamma curve is a gamma curve constructed based on the characteristic data of the driver IC of the debugging module ;

[0098] A determining module 803, configured to determine a grayscale binding point to be adjusted on the gamma curve of the debugging module when the gamma curve of the debugging module is inconsistent with the standard gamma curve;

[0099] An adjustment module 804, configured to adjust the gray-scale brightness value corresponding to the gray-scale binding point to be adjusted according to the gray-scale binding point corresponding to the target gray-scale brightness value on the standard gamma curve, so that the gray-scale binding point The gra...

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

Embodiments of the present invention provide a method and device for adjusting a gamma curve, the method comprising: obtaining a gamma curve of a debugging module; comparing the gamma curve of the debugging module with a standard gamma curve, The standard gamma curve is a gamma curve constructed based on the characteristic data of the driver IC of the debugging module; when the gamma curve of the debugging module is inconsistent with the standard gamma curve, determine the The gray-scale binding point on the gamma curve that needs to be adjusted; according to the gray-scale binding point corresponding to the target gray-scale brightness value on the standard gamma curve, perform the gray-scale brightness value corresponding to the gray-scale binding point that needs to be adjusted Adjust, so that the gray-scale brightness value of the gray-scale binding point to be adjusted reaches the target gray-scale brightness value.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a method and device for adjusting a gamma curve. Background technique [0002] Currently AMOLED (Active-Matrix Organic Light Emitting Diode, Active-Matrix Organic Light Emitting Diode or Active-Matrix Organic Light Emitting Diode) product modules have obvious differences between end screens, so it is necessary to carry out a For gamma adjustment, it is no longer realistic to consider manual methods in the mass production process. [0003] For this reason, the major panel manufacturers are actively seeking an automatic gamma adjustment method. The current automatic gamma adjustment equipment will adjust the gray scale binding point according to the characteristics of the corresponding driver IC when debugging each module, so that there will be a lot of repetitive work during mass production, because in the actual debugging process There will be many gray-scale binding p...

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 Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G2320/0626G09G2320/0276H04N5/202G09G2320/0693G09G2320/0666G09G2320/0673H04N9/69H04N1/60
Inventor 张昌张光均刘静张志广杨华玲
Owner BOE TECH GRP CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com