3D Display Pixel Pitch Adjustment for Distance-Adaptive Viewing
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Solution Overview
Problem
Current 3D image displaying technologies, such as shutter glass and non-glass methods, have limitations like the need for auxiliary glasses or restricted viewing locations, which restrict the versatility and convenience of stereoscopic image viewing.
Innovation Solution
A stereoscopic display system that includes a camera, a stereoscopic image processing system, and a display device, which photographs the viewer, determines the viewing distance, and adjusts the stereoscopic image pixel pitch and color based on the detected location, allowing for dynamic adjustment of the image display to maintain a proper stereoscopic effect without distance limitations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If shutter glass method is used, then 3D image can be displayed, but user has to wear auxiliary polarizing glasses
Solution Approach 1:
The patent extracts and eliminates the auxiliary polarizing glasses requirement by using a non-glass 3D display method. The system displays stereoscopic images directly on the display panel without requiring users to wear additional glasses, thus removing the harmful factor (auxiliary glasses) while preserving the 3D viewing function.
2Ease of operation
If non-glass method is used, then auxiliary glasses are not needed, but user has to view 3D images only at a specific location
Solution Approach 1:
The patent applies dynamics by making the display system adaptable to different viewing distances. The controller dynamically adjusts display parameters based on the detected distance between the display panel and the viewer, allowing the system to maintain proper stereoscopic effect whether the viewer is close to or far from the display, thus eliminating fixed viewing location requirements.
Solution Approach 2:
The patent changes display parameters (such as pixel pitch and image rendering) based on the viewing distance detected by the distance detecting unit. This parameter adjustment allows the same display system to provide optimal 3D viewing experience across multiple distances, transforming a static display system into one that adapts to varying viewer positions.
3Manufacturing precision
If fixed pixel pitch is used, then display is simple, but stereoscopic effect cannot be maintained at different viewing distances
Solution Approach 1:
The patent makes the pixel pitch dynamic rather than fixed. The controller calculates and adjusts the pixel pitch based on the real-time distance detection, allowing the display to maintain accurate stereoscopic pixel spacing whether the viewer is close or far. This dynamic adjustment resolves the contradiction between manufacturing simplicity and viewing distance adaptability.
Data Source
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AI summary
A three-dimensional (3D) image display device may display a perceived 3D image. A location tracking unit may determine a viewing distance from a screen to a viewer. An image processing unit may calculate a 3D image pixel period based on the determined viewing distance, may determine a color of at least one of pixels and sub-pixels displaying the 3D image based on the calculated 3D image pixel period, and may control the 3D image to be displayed based on the determined color.