Display Color Compensation for Boundary Continuity

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Solution Overview

Problem

Large-sized display systems face issues with uniform color expression across the entire screen due to differences in brightness and discontinuous colors at the boundaries of combined display devices, leading to unsatisfactory visual experiences.

Innovation Solution

An electronic device and method for color compensation that calculates an average compensation value for each region of a display based on received measurement information, adjusts pixel compensation values to decrease towards boundaries for continuous color transitions, and maintains compensation values for discontinuous boundaries, considering external environment factors like light source position and brightness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If color compensation is applied uniformly across the entire display screen, then color uniformity is improved, but boundary discontinuity between adjacent regions worsens

Engineering Contradiction:
Improvecolor uniformityVSAvoidboundary continuity
Core Design Contradiction:
Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The patent applies different compensation strategies to different regions: interior pixels receive uniform compensation values while boundary pixels receive adjusted compensation values that decrease towards the boundary. This local differentiation resolves the contradiction by maintaining color uniformity in interior regions while preventing boundary discontinuity through gradual compensation transitions.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The display screen is segmented into interior regions and boundary regions, with each region receiving appropriate compensation treatment. This segmentation allows the system to optimize for color uniformity in interior areas while separately managing boundary continuity through reduced compensation amounts near edges.

Inventive Principle:
Principle #1Segmentation

2Stability of the object's composition

If compensation amount decreases towards the boundary, then boundary continuity is improved, but color uniformity in interior regions worsens

Engineering Contradiction:
Improveboundary continuityVSAvoidcolor uniformity
Core Design Contradiction:
Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

The patent applies different compensation strategies to different regions: interior pixels receive uniform compensation values while boundary pixels receive adjusted compensation values that decrease towards the boundary. This local differentiation resolves the contradiction by maintaining color uniformity in interior regions while preventing boundary discontinuity through gradual compensation transitions.

Inventive Principle:
Principle #3Local quality

3Manufacturing precision

If color compensation is applied to all regions, then overall color uniformity is improved, but device complexity increases

Engineering Contradiction:
Improvecolor uniformityVSAvoidcompensation calculation complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The display screen is segmented into interior regions and boundary regions, with each region receiving appropriate compensation treatment. This segmentation allows the system to optimize for color uniformity in interior areas while separately managing boundary continuity through reduced compensation amounts near edges.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11232739B2Electronic device, color adjustment method, and computer-readable recording medium
Publication Date: 2022.01.25 SAMSUNG ELECTRONICS CO LTD
  • US11232739B2 patent drawing
  • US11232739B2 patent drawing
  • US11232739B2 patent drawing

AI summary

An electronic device is disclosed. The electronic device of the present disclosure comprises a communication unit, and a processor for: when receiving measurement information including color coordinate values of a display through the communication unit, calculating an average adjustment value for color coordinate values of a first region among multiple regions constituting the display by using the received measurement information; if color coordinate values at a boundary between the first region and a second region adjacent to the first region are continuous, adjusting, for each pixel, an adjustment value so that an adjustment amount of color coordinate values of the first region decreases as the adjustment amount gets closer to the boundary with reference to the average adjustment value; and if color coordinate values at the boundary between the first region and the second region are discontinuous, maintaining the adjustment amount at the average adjustment value.