LED Module Joint Luminance Correction for Tiled Displays

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Solution Overview

Problem

Conventional adjustment of LED modules in tiling type large displays is time-consuming and varies in quality based on worker skill, leading to inconsistent image quality.

Innovation Solution

An information processing system that measures contrast between LED module joints and background areas, calculating and applying joint correction values to adjust luminance automatically.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual visual adjustment is performed by workers, then image quality can be improved, but work time becomes long and finishing varies depending on worker skill

Engineering Contradiction:
Improveimage qualityVSAvoidwork time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent replaces manual visual adjustment with an automated imaging system that captures images of the LED display and uses image processing to detect joint areas and calculate correction values. This substitution of mechanical/manual operations with automated optical and computational systems resolves the contradiction by providing both high precision and time efficiency.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-adjustment by automatically analyzing the displayed image, detecting joint areas, calculating luminance correction values, and applying corrections without human intervention. The LED display adjusts itself based on automated feedback from the imaging system, eliminating dependency on worker skill and reducing adjustment time.

Inventive Principle:
Principle #25Self-service

2Manufacturing precision

If manual visual adjustment is performed by workers, then image quality can be improved, but finishing varies depending on worker skill

Engineering Contradiction:
Improveimage qualityVSAvoidconsistency of finish
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The patent replaces variable human judgment with standardized image processing algorithms that objectively detect joint areas and calculate correction values. This automated approach eliminates variations in finishing quality caused by different worker skills, ensuring consistent results across all adjustments.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system implements a feedback loop where the imaging system captures the displayed image, the processing unit analyzes it to detect joint areas and calculate correction values, and the correction values are applied to adjust luminance. This closed-loop feedback ensures consistent and reliable finishing by continuously monitoring and adjusting based on actual display conditions.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS12573353B2Information processing system and adjusting method
Publication Date: 2026.03.10 SONY GROUP CORP
  • US12573353B2 patent drawing
  • US12573353B2 patent drawing
  • US12573353B2 patent drawing

AI summary

The present disclosure relates to an information processing device, an adjusting method, and a program that can display a higher-quality image.On the basis of an image obtained by imaging an LED display device configured by arranging a plurality of LED modules in a shape of tiles, a contrast measurement unit measures brightness of a joint area including a boundary between adjacent LED modules in the LED display device and a background area outside the joint area, and measures a contrast of the joint area to the background area. A joint correction value calculation unit calculates a joint correction value for adjusting luminance at the boundary between the LED modules on the basis of a measurement result of the contrast. The present technology can be applied to, for example, a direct view type tiling type large display using an LED.