Head Mounted Display Dual Resolution Central Peripheral

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Solution Overview

Problem

Existing light field displays, particularly lens array types, face challenges in improving resolution, which affects user image experience.

Innovation Solution

A head-mounted display device comprising a first display for the peripheral area and a second display with higher resolution for the central area, where the second display image is projected with a resolution greater than the first display image, effectively enhancing display quality by concentrating high resolution in the area where the user's attention is focused.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a single display is used for the entire target zone, then the device complexity is reduced, but the resolution in the central area where user attention is concentrated remains insufficient

Engineering Contradiction:
Improvedisplay resolutionVSAvoiddisplay system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The display system is divided into multiple independent display units (first display for peripheral area, second display for central area), each optimized for its specific region. This segmentation allows the central display to provide high resolution for user attention areas while peripheral displays handle less critical regions, resolving the contradiction between overall resolution and system complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the display target zone are assigned different display qualities according to local requirements. The central area receives high-resolution display output since that's where user attention is concentrated, while peripheral areas use lower-resolution displays. This local quality differentiation optimizes the resolution-complexity tradeoff by allocating resources based on actual usage needs.

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If high resolution is provided across the entire target zone, then the display quality is improved, but the device complexity and cost increase

Engineering Contradiction:
Improvedisplay resolutionVSAvoiddisplay configuration complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Instead of providing high resolution uniformly across the entire display zone (excessive action), the system applies high resolution only to the central area where it is most needed (partial action). This selective approach optimizes the balance between display quality improvement and device complexity reduction, avoiding unnecessary high-resolution components in peripheral regions.

Inventive Principle:
Principle #16Partial or excessive action

3Manufacturing precision

If multiple displays are used to cover different areas, then the display quality in the central area is improved, but the device complexity increases

Engineering Contradiction:
Improvecentral area resolutionVSAvoidnumber of display components
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The display system is segmented into functionally independent units with the second display dedicated to central area high-resolution output and the first display handling peripheral areas. This segmentation enables the central display to be optimized specifically for resolution without burdening the entire system with high-resolution requirements, thus managing complexity through functional separation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system changes the resolution parameter dynamically across different spatial regions. The central area operates at high resolution while peripheral areas operate at lower resolution, allowing the system to manage complexity by varying key parameters (resolution) based on spatial location rather than maintaining uniform high specifications throughout.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11899215B1Head mounted display, display device and image display method thereof
Publication Date: 2024.02.13 HTC CORP
  • US11899215B1 patent drawing
  • US11899215B1 patent drawing
  • US11899215B1 patent drawing

AI summary

A head mounted display, a display device and an image display method thereof are provided. The display device includes a first display and a second display. The first display is configured to provide a first display image to a peripheral area of a target zone. The second display is configured to provide a second display image to a central area of the target zone. A resolution of the second display image is higher than a resolution of the first display image.