Light-field Display Segmentation for View Zone Expansion
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Solution Overview
Problem
Light-field displays face challenges in increasing the number of pixels due to fabrication process limitations, resulting in insufficient data for displaying images across a large range of view zones and depths of field, leading to a limited practicality and poor display effect.
Innovation Solution
The method involves using a same driving circuit for light-emitting points across non-overlapping view zones, dividing the display screen into regions with multiple light-emitting points, and employing lenses to form corresponding view zones, allowing for increased visible range without additional driving circuits, and utilizing switches for controlling light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of pixels in a display is increased to provide sufficient data for light-field display across multiple view zones and depths of field, then the display quality and view zone coverage improve, but the fabrication process complexity and manufacturing difficulty increase significantly
Solution Approach 1:
The display screen is divided into multiple display regions, where each region corresponds to a specific view zone. Each display region contains a subset of light-emitting points that are controlled by dedicated driving circuits. This segmentation allows the system to achieve light-field display across multiple view zones without requiring a single massive array of pixels, thereby reducing fabrication complexity while maintaining display quality.
Solution Approach 2:
The patent introduces a spatial dimension by arranging light-emitting points in three-dimensional space rather than just on a two-dimensional plane. By controlling light emission from different depths and positions, the system creates multiple view zones and depth of field effects without proportionally increasing the number of pixels required, thus overcoming fabrication limitations.
2Device complexity
If traditional displayers with limited pixels are used for light-field display, then device complexity remains manageable, but the range of view zones and depth of field representation become insufficient
Solution Approach 1:
The display system is segmented into multiple independent display regions, each corresponding to a specific view zone. Each region has its own driving circuits that can be controlled independently. This allows the system to manage device complexity by dividing the control architecture into smaller, manageable units while simultaneously expanding the adaptability to cover multiple view zones and depth of field ranges.
Solution Approach 2:
The patent employs switches that can dynamically connect or disconnect display regions from driving circuits based on operational requirements. This dynamic configuration allows the system to adapt the number of active view zones and depth of field levels according to实际需求, providing versatility without permanently increasing device complexity.
3Manufacturing precision
If the number of light-emitting points is increased to improve image detail and depth of field information, then display quality improves, but the amount of driving circuitry required increases proportionally
Solution Approach 1:
Light-emitting points are grouped into display regions, where each region contains multiple light-emitting points controlled by a shared set of driving circuits. This segmentation allows the system to achieve high image detail within each region while reducing the overall number of driving circuits required, as circuits can serve multiple points within their designated region.
Solution Approach 2:
Driving circuits are designed to be multi-functional, capable of controlling multiple light-emitting points across different display regions and view zones. By making the driving circuits universal rather than dedicated to single pixels, the system achieves high manufacturing precision for image detail while minimizing the total quantity of driving circuitry required.
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 enhances the light-field display's practicality by increasing the number of view zones and visible range, improving image detail and depth of field representation, while maintaining the same number of driving circuits.
Implementation Method 1
a lens group including at least one lens, the light-emitting points in the N display regions forming view zones corresponding one by one to the N display regions by the lens group
Data Source
AI summary
The present application provides a light-field display apparatus. The apparatus includes: a display screen, the display screen including N display regions, each display region of the N display regions including M light-emitting points, and light-emitting points at a corresponding position of the N display regions being a light-emitting point group; driving circuits, configured to drive the light-emitting points to emit light; a lens group including at least one lens, the light-emitting points in the N display regions forming view zones corresponding one by one to the N display regions by the lens group, wherein light-emitting points belonging to a same light-emitting point group in the N display regions are driven by a same driving circuit, the N view zones are not overlapped with each other, and both N and M are positive integers greater than 1.