Dual-Panel Display With Eye-Tracked Light Steering for Wide FOV

Solution Overview

Problem

Existing display devices for wearable applications, such as head-mounted displays, struggle to provide high-resolution images over a wide field of view while maintaining portability and user accessibility.

Innovation Solution

A display device comprising a first high-resolution display panel with a small area and a second low-resolution display panel with a large area, along with multi-channel lenses and an eye tracking unit to control the direction of light emitted from the second display panel based on the user's gaze direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a high-resolution display panel with a small area is used, then image resolution is improved, but field of view is reduced

Engineering Contradiction:

Improveimage resolutionVSAvoidfield of view

Core Design Contradiction:

Measurement precisionVSArea of stationary object

Solution Approach 1:

The display system is divided into multiple display panels with different resolutions and viewing angles. A first display panel provides a wide field of view with lower resolution, while a second display panel provides high resolution with a narrower field of view. This segmentation allows each panel to optimize for its specific function, resolving the contradiction between resolution and field of view.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the display system are assigned different quality characteristics. The first display panel uses lower resolution suitable for peripheral viewing, while the second display panel uses high resolution for the central foveal vision region. This local quality differentiation allows the system to provide high resolution where needed without sacrificing overall field of view.

Inventive Principle:

Principle #3Local quality

2Area of stationary object

If a low-resolution display panel with a large area is used, then field of view is improved, but image resolution is reduced

Engineering Contradiction:

Improvefield of viewVSAvoidimage resolution

Core Design Contradiction:

Area of stationary objectVSMeasurement precision

Solution Approach 1:

The display system is divided into multiple display panels with different resolutions and viewing angles. A first display panel provides a wide field of view with lower resolution, while a second display panel provides high resolution with a narrower field of view. This segmentation allows each panel to optimize for its specific function, resolving the contradiction between resolution and field of view.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the display system are assigned different quality characteristics. The first display panel uses lower resolution suitable for peripheral viewing, while the second display panel uses high resolution for the central foveal vision region. This local quality differentiation allows the system to provide high resolution where needed without sacrificing overall field of view.

Inventive Principle:

Principle #3Local quality

3Measurement precision

If multiple display panels with different resolutions are combined, then both high resolution and wide field of view are achieved, but device complexity increases

Engineering Contradiction:

Improveimage resolutionVSAvoiddevice complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

Multiple display panels with different resolutions and viewing characteristics are merged into a single integrated display system. The first display panel and second display panel are positioned to overlap, with the high-resolution panel centered in the lower-resolution panel's field of view. This combining approach achieves both wide field of view and high resolution while managing complexity through integrated optical design.

Inventive Principle:

Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables users to recognize high-resolution images by effectively combining the high-resolution display panel with a small area and the low-resolution display panel with a large area, while maintaining a wide field of view and improving user experience.

Implementation Method 1

a first multi-channel lens and a second multi-channel lens disposed on one surface of the first display panel and one surface of the second display panel and including a plurality of channels through which light emitted from the one surface of the first display panel and the one surface of the second display panel passes

Methodology Applied

Scientific EffectRefraction: Refraction

Implementation Method 2

a light steerer configured to control a direction of light emitted from the second display panel based on the gaze direction

Methodology Applied

Scientific EffectLight steering:

Data Source

PatentUS12295242B2Display device and method of controlling the same

Publication Date: 2025.05.06 SAMSUNG DISPLAY CO LTD

AI summary

A display device includes: a first display panel having a first resolution; a second display panel having a second resolution; and a first multi-channel lens and a second multi-channel lens disposed on one surface of the first display panel and including a plurality of channels through which light emitted from the one surface of the first display panel passes, where the second resolution is higher than the first resolution.