Stereoscopic Display With Directional Sub-Pixels to Reduce Crosstalk

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Solution Overview

Problem

Current stereoscopic displays suffer from stereoscopic image crosstalk and incoherent images at tiling parts, affecting the viewing experience.

Innovation Solution

A stereoscopic display device with a sensing device to track user position and viewing angle, and a display device with sub-pixels having different light-emitting directions, controlled to minimize crosstalk by adjusting pixel activation based on user position and angle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional planar stereoscopic display devices are used, then the display structure is simple, but stereoscopic image crosstalk occurs affecting image quality

Engineering Contradiction:

Improvestereoscopic image qualityVSAvoidcrosstalk interference

Core Design Contradiction:

Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

Each pixel is divided into three sub-pixels (first, second, and third sub-pixels) with different light-emitting directions. This segmentation allows independent control of light emission angles for left and right eyes, eliminating crosstalk by directing light precisely to the intended eye without interference from the other eye's image

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different sub-pixels within the same pixel have different local light-emitting properties (different main light-emitting directions). The first sub-pixel emits light at a first angle, the second at a second angle, and the third at a third angle, allowing each sub-pixel to serve a specific viewing direction and reduce crosstalk interference

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If tri-plane tiling surround-view display is used, then the viewing angle is expanded, but stereoscopic images become incoherent at tiling parts

Engineering Contradiction:

Improveviewing angle coverageVSAvoidimage coherence at tiling parts

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The display device dynamically adjusts which sub-pixels are activated based on the user's position and viewing angle information obtained from the sensing device. This dynamic adaptation ensures that the correct sub-pixels emit light in the correct directions regardless of the user's position, maintaining image coherence even across tiling parts of surround-view displays

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The sensing device provides feedback about user position and viewing angle to the display device, which then adjusts sub-pixel activation accordingly. This feedback mechanism ensures that stereoscopic images remain coherent and consistent across all display surfaces including tiling parts, as the system continuously adapts to the user's actual viewing conditions

Inventive Principle:

Principle #23Feedback

3Object-affected harmful factors

If sub-pixels with different light-emitting directions are used, then crosstalk is reduced, but device complexity increases

Engineering Contradiction:

Improvecrosstalk interferenceVSAvoidpixel structure complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

Multiple sub-pixels with different light-emitting directions are merged within a single pixel structure. The first, second, and third sub-pixels are integrated into one pixel, sharing common control circuitry and substrate infrastructure, which reduces overall device complexity compared to having separate display units for different viewing directions

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

Reduces stereoscopic image crosstalk and enhances viewing quality by providing clear, independent image information to each eye, optimizing the stereoscopic display effect.

Implementation Method 1

a sensing device and a display device. The sensing device is suitable for sensing position information and viewing angle information of a user

Methodology Applied

Scientific EffectSensing:

Implementation Method 2

each of the plurality of pixels includes a first sub-pixel, a second sub-pixel, and a third sub-pixel having main light-emitting directions different from each other. The main light-emitting direction of each of the sub-pixels of the invention has at least two or more tilt angles with respect to the plane of the substrate

Methodology Applied

Scientific EffectLight emission: Light Emitting Diode

Data Source

PatentUS12439018B2Stereoscopic display device for reducing interference of stereoscopic image crosstalk

Publication Date: 2025.10.07 ACER INC

AI summary

A stereoscopic display device includes a sensing device and a display device. The sensing device is suitable for sensing position information and viewing angle information of a user. The display device is connected to the sensing device and suitable for receiving the position information and the viewing angle information. The display device includes a substrate and a plurality of pixels, wherein each of the plurality of pixels includes a first sub-pixel, a second sub-pixel, and a third sub-pixel having main light-emitting directions different from each other. The display device correspondingly turns on at least one of the first sub-pixel, the second sub-pixel, and the third sub-pixel and turns off at least another of the first sub-pixel, the second sub-pixel, and the third sub-pixel based on the position information and the viewing angle information.