Multi-Resolution Display Screen With Zoned Pixel Density

Solution Overview

Problem

Current display screens for virtual reality and augmented reality applications face challenges in achieving high resolution without excessive complexity and cost, particularly in managing pixel density to prevent pixelization and reducing digital data transmission requirements, while maintaining an immersive visual field for users.

Innovation Solution

A display screen with multiple pixel density zones, where a first zone has a lower resolution for a broader area and a second zone with a higher resolution, typically greater than 2000 ppi, is integrated into a single screen, allowing for adaptive image projection based on eye movement monitoring to optimize data transmission and reduce manufacturing complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a single high-resolution screen (≥2000 ppi) is used to prevent pixelization under close observation conditions, then the pixelization phenomenon is avoided, but the manufacturing cost and device complexity become too high for mass-market applications

Engineering Contradiction:

Improvepixel separation distanceVSAvoidpixel control circuit technology

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies local quality by dividing the display screen into multiple zones with different pixel densities. The first zone has a first pixel density suitable for distant observation, while the second zone has a second pixel density (higher than the first) suitable for close observation. This allows each zone to have the appropriate resolution for its intended viewing distance, avoiding the need for the entire screen to use expensive high-resolution technology.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The display screen is segmented into at least two distinct zones with different pixel densities. This segmentation allows the system to use lower-resolution (and thus less complex and cheaper to manufacture) technology for the majority of the screen area, while reserving high-resolution technology only for the specific zone where it is needed for close observation.

Inventive Principle:

Principle #1Segmentation

2Manufacturing precision

If a screen with resolution ≥2000 ppi is used to prevent pixelization under close observation conditions, then the pixelization phenomenon is avoided, but the manufacturing cost becomes too high for mass-market applications

Engineering Contradiction:

Improvepixel separation distanceVSAvoidmanufacturing cost

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent applies local quality by dividing the display screen into multiple zones with different pixel densities. The first zone has a first pixel density suitable for distant observation, while the second zone has a second pixel density (higher than the first) suitable for close observation. This allows each zone to have the appropriate resolution for its intended viewing distance, avoiding the need for the entire screen to use expensive high-resolution technology.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The display screen is segmented into at least two distinct zones with different pixel densities. This segmentation allows the system to use lower-resolution (and thus less complex and cheaper to manufacture) technology for the majority of the screen area, while reserving high-resolution technology only for the specific zone where it is needed for close observation.

Inventive Principle:

Principle #1Segmentation

3Area of stationary object

If a large quantity of pixels (>12 MPix) is used to maintain wide visual field and high resolution in virtual reality headsets, then the visual field coverage is improved, but the digital data transmission requirements become excessively high

Engineering Contradiction:

Improvevisual field coverageVSAvoiddigital data transmission volume

Core Design Contradiction:

Area of stationary objectVSQuantity of substance

Solution Approach 1:

The patent applies local quality by dividing the display screen into multiple zones with different pixel densities. The first zone has a first pixel density suitable for distant observation, while the second zone has a second pixel density (higher than the first) suitable for close observation. This allows each zone to have the appropriate resolution for its intended viewing distance, avoiding the need for the entire screen to use expensive high-resolution technology.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The display screen is segmented into at least two distinct zones with different pixel densities. This segmentation allows the system to use lower-resolution (and thus less complex and cheaper to manufacture) technology for the majority of the screen area, while reserving high-resolution technology only for the specific zone where it is needed for close observation.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12094377B2Multiple resolution display screen and production method

Publication Date: 2024.09.17 ALEDIA INC

AI summary

A display screen intended to display a multiple-resolution image and including a plurality of pixels distributed on a support, the screen including a first zone of a face of the support having a first density of pixels, enabling to display a first part of the image at a first resolution, and a second zone of the face of the support having a second density of pixels, strictly greater than said first density, enabling to display a second part of the image at a second resolution. The disclosure also relates to a display system including such a screen and a method for producing the screen.