Lenticular Display Ray Tracing Calibration for Stereoscopic Crosstalk
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Solution Overview
Problem
Current electronic devices with displays struggle to provide effective stereoscopic viewing for three-dimensional content, as existing technologies often result in crosstalk between viewing zones and inefficient image processing, leading to suboptimal three-dimensional image quality.
Innovation Solution
The implementation of a lenticular display with independently controllable viewing zones, combined with advanced circuitry such as display pipeline circuitry, tone mapping, and ray tracing, to generate and process multiple two-dimensional images for each zone, ensuring precise image alignment and calibration for stereoscopic viewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If lenticular lenses are used to provide three-dimensional content, then stereoscopic viewing is enabled, but crosstalk between viewing zones occurs and image quality becomes suboptimal
Solution Approach 1:
The display is divided into multiple independently controllable viewing zones, each displaying a different two-dimensional image. This segmentation allows precise control over which pixels correspond to which viewing zones, enabling accurate stereoscopic viewing while minimizing crosstalk between zones.
Solution Approach 2:
Eye and head tracking systems capture images from the viewer's eyes and head position. This feedback is used by control circuitry to determine which viewing zones are occupied and dynamically adjust the displayed content, ensuring precise image alignment and reducing crosstalk in real-time.
2Productivity
If multiple two-dimensional images are processed for each viewing zone, then image processing efficiency improves, but device complexity increases
Solution Approach 1:
Display pipeline circuitry performs multiple functions including tone mapping, ambient light adaptation, white point calibration, and dithering on the two-dimensional images. This multi-functionality consolidates processing tasks into a single circuitry block, improving processing efficiency while managing device complexity through integrated design.
Solution Approach 2:
The system performs preliminary processing steps (tone mapping, calibration, dithering) on the two-dimensional images before they are mapped to pixels. This preliminary action optimizes the images in advance, improving overall processing efficiency and reducing the computational burden during actual display operation.
3Measurement precision
If ray tracing is used to generate display calibration map, then pixel mapping accuracy improves, but processing time increases
Solution Approach 1:
Ray tracing is performed in advance to generate a display calibration map that contains pre-calculated pixel location information. This preliminary action stores the mapping relationships before actual display operation, so that during normal operation the system can quickly retrieve and apply the calibration data without performing time-consuming ray tracing calculations in real-time.
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 solution enables high-quality stereoscopic viewing by minimizing crosstalk and optimizing image processing, resulting in a more immersive and accurate three-dimensional experience for viewers.
Implementation Method 1
lenticular lenses that enable the display to provide three-dimensional content to the viewer
Data Source
AI summary
An electronic device may include a lenticular display. The lenticular display may have a lenticular lens film formed over an array of pixels. The display may include ray tracing circuitry that is configured to, using ray tracing, a three-dimensional image, and deflection measurements for the array of pixels, output a display calibration map that includes, for each pixel in the array of pixels, a corresponding location on a two-dimensional image. The display may also include pixel mapping circuitry configured to, using the display calibration map from the ray tracing circuitry, map the two-dimensional image to respective pixels on the array of pixels to obtain pixel data for the array of pixels.