Movable Viewing Window for Stereoscopic LCD Shutter Glasses
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current stereoscopic 3D viewing technologies face challenges due to the slow response time of LCD pixels, leading to artifacts and reduced image quality as there is little time during a frame when all pixels represent only one frame's data, making it difficult to effectively use shutter glasses for 3D viewing.
Innovation Solution
An integrated circuit system and stereoscopic viewing device with a movable viewing window that advances in synchronization with the frame rate of the display, allowing only a portion of the image data to be viewed at a time, thereby improving image quality and reducing artifacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If LCD pixels are used to display stereoscopic 3D content with shutter glasses, then 3D viewing capability is enabled, but image quality deteriorates due to slow pixel response time causing artifacts and motion blur
Solution Approach 1:
The patent divides the viewing field into multiple discrete viewing windows that can be independently controlled and advanced through the frame. This segmentation allows the system to selectively display content from specific time intervals, avoiding the mixed-frame artifacts caused by slow LCD response times while maintaining 3D viewing capability through shutter glasses synchronization.
2Area of stationary object
If the entire viewing field is used for display, then maximum viewing area is achieved, but image fidelity deteriorates because pixels from multiple frames are mixed during the frame period
Solution Approach 1:
The patent implements a dynamic viewing window that can be advanced through the frame in synchronization with the display refresh rate. This dynamic approach allows the viewing window to capture only fully transitioned pixels from a single frame, ensuring high image fidelity while still providing adequate viewing area through coordinated advancement across multiple frames.
3Reliability
If shutter glasses are used to enable 3D viewing, then stereoscopic capability is achieved, but image quality worsens due to lack of time for complete pixel transition within the frame period
Solution Approach 1:
The patent advances the viewing window through the frame before the next frame's pixel transitions complete, ensuring that only fully transitioned pixels from a single frame are displayed during the shutter open period. This preliminary timing action prevents mixing of frame data and eliminates artifacts, maintaining both stereoscopic capability and high image quality.
Data Source
AI summary
Methods and systems are described for enabling the operation of a stereoscopic viewing device such that the viewing device provides a movable viewing window that enables the 3D rendering of 3D image data displayed by a backlit LCD device. In a particular implementation, the systems and methods disclosed herein are operable to control the operation of a pair of LCD shutter glasses.