Display White Point Adjustment Using Stored Correction Data

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Solution Overview

Problem

Current light source displays require cumbersome and time-consuming manual measurements to adjust white point and color settings, with stored calibration values lacking real measurements, necessitating a simpler and quicker method for altering light output and white point.

Innovation Solution

A system and method using correction data and mathematical calculations to adjust light output and white point without requiring additional physical measurements, employing a processor to calculate new correction parameters based on target light output and previous calibration data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual measurements and adaptations are performed to adjust white point and color settings, then measurement precision is improved, but time consumption and operational complexity increase

Engineering Contradiction:

Improvewhite point measurement precisionVSAvoidtime consumption for measurements

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The system performs preliminary measurements during manufacturing and stores correction data in advance. This allows the display to be pre-calibrated with correction parameters that compensate for manufacturing variations, eliminating the need for time-consuming on-site measurements while maintaining measurement precision.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Instead of performing physical measurements at the user site, the system uses stored correction data that replicates the effect of measurements. The correction parameters are calculated in advance and applied to adjust the light output, providing the same precision benefit without the time cost of actual measurements.

Inventive Principle:

Principle #26Copying

2Measurement precision

If manual measurements and adaptations are performed to adjust white point and color settings, then measurement precision is improved, but operational complexity increases

Engineering Contradiction:

Improvewhite point measurement precisionVSAvoidoperational simplicity

Core Design Contradiction:

Measurement precisionVSEase of operation

Solution Approach 1:

The display system automatically applies correction data stored in its memory to adjust its light output characteristics. This self-service mechanism eliminates the need for users to perform manual measurements or complex adaptations, maintaining measurement precision while greatly simplifying operation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system replaces manual measurement procedures with an automated electronic correction process. Stored correction data is processed by a controller that automatically adjusts the light output, substituting complex manual operations with simple automated electronic control.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If correction data and mathematical calculations are used to adjust light output, then operational simplicity is improved, but manufacturing precision requirements increase

Engineering Contradiction:

Improveadjustment simplicityVSAvoidcorrection data accuracy

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

Detailed measurements and correction calculations are performed during manufacturing with high precision. The correction data generated in this preliminary stage compensates for manufacturing variations, allowing simple operation at the user site while maintaining the required manufacturing precision in the correction data generation process.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS20260073857A1Systems and methods for altering light output and white point of a light source or light source display

Publication Date: 2026.03.12 STEREYO BVBA

AI summary

A method and related system are disclosed for altering the light output of a light source, or for altering the light output and/or white point of a light source display, such as an RGB LED or OLED display, herewith using only correction data, which could be brightness correction data, and amongst which for example calibration data could be used. Hence, the need to perform cumbersome measurements and/or adaptations is herewith limited or avoided.