Head-Mounted Display Resolution Zoning for Lower Processing Load

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Solution Overview

Problem

Existing head-mounted displays face challenges in displaying high-definition content while minimizing the processing load, particularly in virtual reality applications that require high-resolution displays across a wide field of view, leading to impractical system costs and resource demands.

Innovation Solution

A display control apparatus and method that switches between different display modes in specific regions of the screen, allowing high-resolution display in the central view-field region and lower-resolution display in the peripheral view-field region, using a signal processing unit to manage pixel sizes and reduce overall processing load.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If high-definition content is displayed in the entire screen, then image quality is improved, but processing load increases

Engineering Contradiction:
Improveimage qualityVSAvoidprocessing load
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent applies different display resolutions to different regions of the screen: high resolution in the first region (central view-field) and low resolution in the second region (peripheral view-field). This local differentiation maintains high image quality where the user focuses attention while reducing processing load in peripheral areas where detailed resolution is less critical.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If high resolution is maintained across the entire display, then display quality is improved, but system cost increases

Engineering Contradiction:
Improvedisplay qualityVSAvoidsystem cost
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The display system implements high resolution only in the central region where visual acuity is highest, and low resolution in peripheral regions. This approach maintains acceptable display quality overall while significantly reducing the total number of pixels and associated system costs compared to full high-definition display.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent provides more resolution than necessary for the entire screen by concentrating high resolution only in the central region where the human eye has highest acuity. This partial high-resolution approach avoids the excessive cost of full high-definition display while maintaining perceived quality in the most critical viewing area.

Inventive Principle:
Principle #16Partial or excessive action

3Measurement precision

If high resolution is used throughout the screen, then image detail is improved, but processing time increases

Engineering Contradiction:
Improveimage detailVSAvoidprocessing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system processes high-resolution image data only for the central region and low-resolution data for peripheral regions. This selective processing approach maintains detailed image representation where needed while reducing overall processing time by minimizing the total pixel count that requires high-detail computation.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12631876B2Display control apparatus, head mounted display, and display control method
Publication Date: 2026.05.19 SONY GROUP CORP
  • US12631876B2 patent drawing
  • US12631876B2 patent drawing
  • US12631876B2 patent drawing

AI summary

There is provided a display control apparatus capable of displaying a high-quality image while inhibiting a load at the time of displaying the image in front of a user. There is provided a display control apparatus including a signal processing unit that performs signal processing in which a first mode and a second mode are switchable at a first region in a screen and a region other than the first region in the screen, display being performed at a first resolution in the first mode, display being performed at a second resolution in the second mode, in which the signal processing unit performs display while reducing a resolution in the second mode toward an outer periphery of the screen.