3D Display Segmentation for High-Angular-Resolution Viewing
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Solution Overview
Problem
Existing light field displays face significant complexity and resolution limitations due to the need to emit light in multiple angles, leading to inefficiencies and artifacts such as abrupt perspective changes and blurred boundaries, while also requiring high bandwidth connectors and complex optical systems, which hinder widespread adoption.
Innovation Solution
The display is designed with segments of pixels that emit light in specific angles based on observer position, using a microlens array to refract light from subpixels, allowing for reduced data processing and transmission requirements by grouping subpixels within segments and using a control system to synchronize image rendering with observer position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a light field display emits light in multiple angles from each pixel, then the viewing experience and look-around capability are improved, but the device complexity and data processing requirements increase dramatically
Solution Approach 1:
The display is divided into multiple segments, where each segment contains a subset of subpixels that emit light in specific angles. This segmentation allows the system to reduce the number of subpixels needed per pixel while maintaining multiple viewing angles, thereby reducing overall device complexity and data processing requirements
Solution Approach 2:
The patent introduces a temporal dimension by time-multiplexing the emission of different angular views. Instead of emitting all angular views simultaneously requiring all subpixels to be active at once, the system sequentially emits different angular views over time, reducing the number of subpixels needed at any given moment
2Manufacturing precision
If the angular resolution of the display is increased to reduce perspective changes and blurring, then the viewing quality is improved, but the number of subpixels per pixel increases dramatically
Solution Approach 1:
The system uses periodic time-multiplexed emission of different angular views to achieve high angular resolution. Instead of requiring all angular views to be simultaneously available through numerous subpixels, the system sequentially presents different angular views in rapid succession, creating the perception of high angular resolution while using far fewer subpixels
Solution Approach 2:
The patent changes the temporal parameter of light emission by controlling the timing and duration of subpixel activation. By carefully controlling the temporal sequence in which different angular views are emitted, the system achieves high angular resolution without requiring a proportional increase in the number of subpixels
3Measurement precision
If a high resolution light field display is constructed with many subpixels per pixel, then the stereoscopic effect and field of view are improved, but the bandwidth requirements and manufacturing complexity increase
Solution Approach 1:
The system dynamically controls which subpixels are activated at different time periods to emit different angular views. This dynamic temporal control allows the display to provide high-resolution stereoscopic effects to multiple observers simultaneously by directing different angular sequences to different spatial positions, reducing the total bandwidth requirements compared to static high-resolution displays
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 approach reduces complexity and data requirements, enabling high angular resolution with fewer transistors and seamless viewing experiences, allowing multiple observers to perceive individual perspectives without the need for headgear and minimizing distracting artifacts.
Implementation Method 1
using a microlens array to refract light from subpixels
Data Source
AI summary
A display for directional control of an image to an observer includes a plurality of pixels with a first pixel constituting an image pixel. The pixels are arranged in a plane and in a first segment covering a display segment area. Each pixel defines a pixel area having a plurality of subpixels, and the first pixel has a first plurality of subpixels including a first subpixel. Each subpixel pixel defines a direction from the display to a viewpoint, or an angle between the normal to said display and a viewpoint. A front optical arrangement has at least one optical element with an optical power and a first focal point at the plane, and a second focal point between the front optical arrangement and a point in front of and infinitely far away from the front optical arrangement. An electric circuit is implemented in a first thin film.