Spot Compensation Data Generator Using Variable Precision Units

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Solution Overview

Problem

Display panels often exhibit spots that degrade image quality, and existing solutions fail to precisely compensate for these spots while efficiently managing compensation data size.

Innovation Solution

A spot compensating apparatus that generates compensation data using different precision units for areas with and without spots on the display panel, employing a seed data extraction method based on interpolation, to produce accurate and reduced-size compensation data.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If uniform precision units are used for spot compensation across the entire display panel, then compensation precision is maintained, but compensation data size increases unnecessarily

Engineering Contradiction:
Improvespot compensation precisionVSAvoidcompensation data size
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent divides the display panel into multiple block areas and applies different precision units (N*N pixel units vs. M*M pixel units) to different regions. Specifically, areas with spots use higher precision (N*N where N is smaller) while areas without spots use lower precision (M*M where M is larger), optimizing the balance between compensation accuracy and data size reduction.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent segments the display panel into multiple block areas based on spot detection results. Each block area is independently processed with appropriate precision units, allowing the system to avoid applying high precision uniformly across the entire panel while maintaining accuracy where needed.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If high precision units are applied throughout the display panel, then spot compensation accuracy is maximized, but the complexity of processing increases

Engineering Contradiction:
Improvespot compensation accuracyVSAvoidprocessing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system applies high precision processing only to block areas containing spots while using lower precision for areas without spots. This localized approach reduces overall processing complexity compared to applying high precision uniformly, while maintaining maximum accuracy where spots are present.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent dynamically determines the appropriate precision unit for each block area based on spot detection results. The processing complexity is adjusted adaptively according to the actual content of each region, rather than using a fixed high precision approach throughout.

Inventive Principle:
Principle #15Dynamics

3Quantity of substance

If the display panel is divided into more block areas with different precision units, then data size is reduced, but the complexity of managing multiple precision levels increases

Engineering Contradiction:
Improvecompensation data sizeVSAvoidprecision unit management complexity
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent changes the precision parameter (pixel unit size) based on the detected presence of spots in each block area. By using N*N units where N is small for spot-containing areas and M*M units where M is large for spot-free areas, the system reduces data size while managing complexity through clear parameter differentiation.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10937372B2Spot compensating apparatus, method of compensating spot using the same, and display system having the same
Publication Date: 2021.03.02 SAMSUNG DISPLAY CO LTD
  • US10937372B2 patent drawing
  • US10937372B2 patent drawing
  • US10937372B2 patent drawing

AI summary

A spot compensating apparatus including a spot compensation data generator configured to generate spot compensation data based on a first precision unit in a first block area having a spot, and based on a second precision unit in a second block area not having the spot, the spot compensation data being for compensating the spot displayed on a display panel configured to display an image based on first image data, the second precision unit having less precision than the first precision unit, and a spot compensator configured to perform a spot compensation on the first image data using the spot compensation data to output second image data.