Reflective Pixel Array for Naked-Eye 3D Display
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Solution Overview
Problem
The existing naked-eye stereoscopic image displaying systems, such as lenticular screen and parallax barrier systems, face challenges in manufacturing complexity and increased costs due to the need for precise alignment and processing of fine lenses and barriers, which limits their practical use and increases production costs.
Innovation Solution
A display device with a pixel array and reflectors on the front surface of each pixel, where the reflectors guide light towards specific viewing positions, allowing for stereoscopic image display without the need for precise alignment of lenses or barriers, thus simplifying the manufacturing process and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If lenticular lenses or parallax barriers are used to separate optical paths for left and right eyes, then stereoscopic image display is achieved, but manufacturing complexity and cost increase due to precise alignment requirements
Solution Approach 1:
The patent extracts the complex lenticular lenses or parallax barriers from the display structure and replaces them with a simpler reflective structure integrated directly into the pixel array. Each pixel's reflective structure directs light to specific viewing angles, achieving optical path separation without requiring separate lens or barrier components that need precise alignment.
Solution Approach 2:
The patent merges the light-guiding function previously performed by separate lenticular lenses or parallax barriers with the pixel structure itself. The reflective structures are integrated into the pixel array, combining the display function with the optical direction function, thereby eliminating the need for separate alignment components.
2Manufacturing precision
If lenticular lenses or parallax barriers are precisely aligned with display surface, then optical path separation is achieved, but manufacturing cost increases due to additional accurate processing
Solution Approach 1:
The patent incorporates the light-directing function directly into the pixel structure during the initial manufacturing process. The reflective structures are formed as part of the pixel array fabrication, so the optical alignment is built-in from the start rather than requiring subsequent precise alignment steps between separate components.
Solution Approach 2:
The patent uses the pixel structure itself to create the optical direction function, copying the light-guiding capability from separate lens/barrier systems into the pixel design. This eliminates the need for separate physical components that would require precise alignment and copying between different manufacturing stages.
3Reliability
If pixels for left and right eyes are alternately disposed, then optical path separation is achieved, but horizontal or vertical resolution is reduced
Solution Approach 1:
The patent applies different reflective properties to different regions of each pixel structure to achieve optical path separation. Instead of alternating pixel dispositions, each pixel's reflective structure is locally configured to direct light to specific viewing angles, maintaining the full pixel array for both left and right eye images while achieving separation through local optical properties.
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
The solution enables the manufacture of a stereoscopic image displaying device that can be easily produced and used, providing high-definition three-dimensional images without reducing horizontal or vertical resolution, and allows for flexible image orientation, enhancing the practicality and cost-effectiveness of naked-eye stereoscopic displays.
Implementation Method 1
a plurality of reflectors, one of the reflectors provided on a front surface of each of the pixels. The plurality of reflectors include a first subset of reflectors that direct light emitted from the respective light emitting portions toward a first viewing position, and a second subset of reflectors that direct light emitted from the respective light emitting portions toward a second viewing position that is different from the first viewing position.
Data Source
AI summary
A reflecting apparatus comprising: an array of reflectors including a first subset of reflectors and a second subset of reflectors, wherein the first subset of reflectors guide light toward a first viewing position and the second subset of reflectors guide light toward a second viewing position that is different from the first viewing position.