Stereoscopic LED Module Layout for Optical Isolation and Low Crosstalk
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Solution Overview
Problem
Existing stereoscopic display systems face challenges in providing a wide-ranging 3D viewing experience outside traditional environments, such as movie theaters, due to issues like headaches from color-coded segregation of views and limited advancements in devices like billboards and LED displays, which affect image resolution and optical isolation.
Innovation Solution
The use of high opacity fillers extending over the top edges of polarizers in LED display modules, combined with low opacity coatings, to optically isolate light emitters and improve optical isolation and image fidelity, along with sloped polarizers to enhance light absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high opacity filler is extended over the top edges of polarizers to improve optical isolation, then image resolution and stereo contrast ratio are improved, but the total amount of light exiting the polarizers is reduced
Solution Approach 1:
The patent segments the optical path by introducing high opacity filler material between adjacent light emitter sets, creating distinct optical zones. This segmentation prevents light from adjacent emitters from interfering with each other's polarized beams, thereby improving image resolution and stereo contrast ratio while managing the trade-off with total light output
Solution Approach 2:
The high opacity filler is strategically positioned only at critical locations where optical isolation is needed - specifically extending over the top edges of polarizers and filling spaces between adjacent light emitter sets. This localized application provides maximum optical isolation benefit with minimal impact on overall light transmission
2Reliability
If high opacity filler is used to optically isolate light emitters, then cross-talk between adjacent emitters is reduced, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into the high opacity filler material: it serves as both the structural support matrix and the optical isolation medium. By integrating these functions into a single component rather than separate elements, the patent reduces overall device complexity while maintaining effective optical isolation between adjacent light emitter sets
Solution Approach 2:
The high opacity filler acts as an intermediary material between adjacent light emitter sets, mediating the optical interaction by absorbing and blocking stray light. This intermediary layer simplifies the overall structure compared to using complex mechanical barriers or additional optical components
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 significantly enhances stereo contrast ratios, improving image resolution and reducing cross-talk between adjacent light emitters, resulting in a more effective stereoscopic display experience.
Implementation Method 1
light emitters and the attached polarizers to the light emitters are optically isolated from each other by a high opacity filler
Implementation Method 2
polarizers that present different views to each eye of a viewer
Data Source
AI summary
The inventive subject matter provides apparatus and methods in which light emitters/light emitter packages are optically isolated from each other by a high opacity filler, which extends up above the tops of the polarizers, and in some cases covering portions of the top surfaces of the polarizers.