Autostereoscopic Display Lightguide Focal Point Control
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Solution Overview
Problem
Current autostereoscopic display systems face challenges in effectively directing light from multiple sources to distinct focal points for the simultaneous display of stereoscopic images, leading to inefficiencies in image rendering and viewer experience.
Innovation Solution
The system employs a transmissive display device and a lightguide, dynamically configured by a controller to redirect light from multiple sources to specific focal points, using MEMS switches or electrowetting media to alternate between left and right-channel images, with optical shutters and a light absorbing layer to manage light transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light sources are used to illuminate different focal points for stereoscopic images, then the autostereoscopic display capability is improved, but the light directionality and focal point precision deteriorate
Solution Approach 1:
A light guide is introduced as an intermediary component between the light sources and the display device. The light guide receives light from multiple light sources and directs it to specific focal points with precision, solving the problem of poor light directionality when multiple light sources are used for autostereoscopic display.
2Productivity
If light from multiple sources is directed to distinct focal points, then stereoscopic image rendering is improved, but light transmission efficiency deteriorates
Solution Approach 1:
The light guide acts as an intermediary that efficiently transmits light from multiple sources to distinct focal points, minimizing light loss. It ensures that light energy is effectively delivered to the required locations for stereoscopic image rendering at different depths.
Solution Approach 2:
The light guide is divided into multiple light transmitting portions, each corresponding to a different focal point. This segmentation allows independent optimization of light transmission paths for different depth planes, improving overall light transmission efficiency while supporting multi-focal-point stereoscopic display.
3Adaptability or versatility
If dynamic light direction control is implemented for alternating left and right-channel images, then autostereoscopic viewing experience is improved, but device complexity increases
Solution Approach 1:
The light guide configuration system is designed to be dynamically adjustable, allowing the light transmitting portions to be selectively activated or deactivated based on the required stereoscopic image display. This dynamic control enables alternating between left and right-channel images while managing device complexity through programmable control rather than complex mechanical structures.
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
This configuration enables efficient and effective display of stereoscopic images by ensuring that each eye sees the correct channel image, enhancing the autostereoscopic viewing experience with improved image clarity and reduced misdirection of light.
Implementation Method 1
a lightguide; configuring a lightguide to direct light from at least one light source to a first focal point
Implementation Method 2
configuring a transmissive optical display according to a first stereoscopic image of a stereoscopic image pair
Implementation Method 3
using MEMS switches or electrowetting media to alternate between left and right-channel images
Data Source
AI summary
A method and system for autostereoscopic display of stereoscopic images may include: illuminating at least one light source; configuring a lightguide to direct light from at least one light source to a first focal point; configuring a transmissive optical display according to a first stereoscopic image of a stereoscopic image pair; configuring the lightguide to direct light from at least one light source to a second focal point; and configuring the transmissive optical display according to a second stereoscopic image of the stereoscopic image pair.