Multi-Screen Chromatic Aberration Adjustment via Color Offset Levels

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Solution Overview

Problem

Conventional display devices with multiple screens suffer from chromatic aberrations, leading to inconsistent display pictures and requiring time-consuming manual adjustments of red, blue, and green default values, especially when replacing screens, which increases maintenance costs.

Innovation Solution

A method and display device that define a tolerance scope and varying scope of chromatic aberration, set adjusting levels, and input corresponding color offset values to each screen to adjust chromaticity, allowing for automatic alignment and minimizing maintenance costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If manual adjustment of white balance is performed to coordinate display pictures, then chromatic aberration is reduced, but time consumption increases and professional operation is required

Engineering Contradiction:

Improvechromatic aberration adjustment precisionVSAvoidadjustment time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The system automatically detects chromatic aberration parameters and performs white balance adjustment without human intervention. The processing unit automatically compares chromaticity data from multiple display screens, determines adjustment levels, and applies color offset values, enabling the system to self-adjust and eliminate the need for manual professional operation.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The manual mechanical adjustment process is replaced by an automated electronic system. The processing unit uses image processing and color space conversion algorithms to automatically calculate and apply chromatic aberration corrections, substituting the manual mechanical white balance adjustment with an automated digital processing system.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Manufacturing precision

If manual adjustment of white balance is performed to coordinate display pictures, then chromatic aberration is reduced, but operation complexity increases

Engineering Contradiction:

Improvechromatic aberration adjustment precisionVSAvoidadjustment operation ease

Core Design Contradiction:

Manufacturing precisionVSEase of operation

Solution Approach 1:

Inventive Principle:

Principle #25Self-service

3Stability of the object's composition

If all display screens are re-adjusted when one screen is replaced, then chromatic consistency is maintained, but maintenance costs increase

Engineering Contradiction:

Improvechromatic consistencyVSAvoidmaintenance cost

Core Design Contradiction:

Stability of the object's compositionVSEase of repair

Solution Approach 1:

The system applies different adjustment strategies to different display screens based on their individual chromatic aberration characteristics. When a screen is replaced, only the local chromatic parameters of affected screens are adjusted rather than requiring global re-adjustment of all screens, reducing maintenance complexity and cost.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system pre-establishes multiple adjustment levels corresponding to different chromatic aberration varying scopes. When a screen is replaced, the system can quickly apply pre-defined adjustment levels to maintain chromatic consistency without requiring complex real-time calculations, thereby reducing maintenance costs and time.

Inventive Principle:

Principle #10Preliminary action

4Area of stationary object

If multiple display screens are spliced together to form a display device, then display area is increased, but chromatic aberration inconsistency increases

Engineering Contradiction:

Improvedisplay areaVSAvoidchromatic aberration consistency

Core Design Contradiction:

Area of stationary objectVSManufacturing precision

Solution Approach 1:

The system applies different adjustment strategies to different display screens based on their individual chromatic aberration characteristics. Each display screen is independently analyzed and adjusted according to its specific chromatic parameters, allowing large-area multi-screen displays to maintain uniform chromaticity across all screens.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system changes chromaticity parameters (red, green, blue default values) of individual display screens based on their measured chromatic aberrations. By adjusting these parameters within defined tolerance scopes and varying scopes, the system achieves chromatic consistency across multiple spliced screens while maintaining the expanded display area.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS11314080B2Display device and computer-implemented method of adjusting chromatic aberration of display device

Publication Date: 2022.04.26 HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD

AI summary

A method of adjusting a chromatic aberration of a display device includes defining a tolerance scope of chromatic aberration; determining a varying scope of chromatic aberration of the display device according to chromatic aberrations of the plurality of display screens; defining a plurality of adjusting levels of chromatic aberration according to the tolerance scope of chromatic aberration and the varying scope of chromatic aberration; setting a color offset value corresponding to each of the plurality of adjusting levels of chromatic aberration; and for each of the plurality of display screens, selecting a corresponding adjusting level of chromatic aberration in comparison to one of the plurality of display screens, and inputting a corresponding color offset value of the selected adjusting level of chromatic aberration to each of the plurality of display screens.