3D Display Apparatus Blur Correction for Vergence-Accommodation Conflict

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Solution Overview

Problem

Existing 3D display technologies face challenges in reducing vergence-accommodation conflict while preventing the apparatus from becoming larger in size.

Innovation Solution

A display apparatus and method that corrects original images to suppress blur when viewed at different positions, using a correction system to generate multiple corrected images for chronological display in at least one display plane, thereby reducing vergence-accommodation conflict without increasing the apparatus' size.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If multiple display planes are arranged to reduce vergence-accommodation conflict, then viewing comfort is improved, but the apparatus size increases

Engineering Contradiction:
Improveviewing comfortVSAvoidapparatus size
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The patent applies preliminary action by pre-calculating and correcting blur for multiple viewing positions in advance. The correction system computes corrected images for each position before display, allowing the system to address vergence-accommodation conflict without adding physical display planes. This resolves the contradiction by preparing compensation data beforehand rather than adding hardware volume.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses copying by generating corrected image copies for different viewing positions. Instead of creating multiple physical display planes, the system creates digital copies of the image with position-specific blur corrections applied. These corrected image copies are then displayed on a single display plane, reducing apparatus size while maintaining viewing comfort across multiple positions.

Inventive Principle:
Principle #26Copying

2Measurement precision

If image correction is applied for multiple positions, then viewing precision is improved, but processing complexity increases

Engineering Contradiction:
Improveviewing precisionVSAvoidprocessing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the viewing space into discrete positions and calculating blur corrections for each segment independently. The correction system segments the continuous viewing environment into specific positions (first position, second position, etc.), allowing precision improvement at each position while managing complexity through systematic division rather than holistic processing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses parameter changes by adjusting blur parameters for different viewing positions. The correction system modifies image parameters (blur amount, focus) based on the viewing position parameter. This allows viewing precision to be improved at multiple positions through parameter adjustment rather than fundamental system redesign, controlling processing complexity through parameter-based adaptation.

Inventive Principle:
Principle #35Parameter changes

3Manufacturing precision

If corrected images are generated for multiple positions, then image quality is improved, but data volume increases

Engineering Contradiction:
Improveimage qualityVSAvoiddata volume
Core Design Contradiction:
Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The patent applies partial action by generating corrected images for specific, discrete viewing positions rather than continuously for all possible positions. The correction system focuses computational resources on key positions (first position, second position, third position) where viewing occurs, improving image quality at these points while avoiding the excessive data generation that would result from continuous position coverage.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The patent uses periodic action by displaying corrected images in a time-sequential manner corresponding to different viewing positions. Instead of simultaneously displaying all corrected images (which would triple data volume), the system displays corrected images periodically - first corrected image, then second corrected image, then third corrected image - reducing instantaneous data requirements while maintaining quality at each position.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS12315120B2Display apparatus and display method
Publication Date: 2025.05.27 SONY GROUP CORP
  • US12315120B2 patent drawing
  • US12315120B2 patent drawing
  • US12315120B2 patent drawing

AI summary

Provided is a display apparatus that displays, in at least one display plane, a stereo image based on an original image to cause a three-dimensional image to be viewed, the display apparatus including a correction system that corrects the original image such that a blur caused when the three-dimensional image is caused to be viewed at at least one position is suppressed, and a display system that displays, in the at least one display plane, a stereo image based on the original image after the correction.