Stereoscopic Display Component Backlight Grating Crosstalk Reduction
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Solution Overview
Problem
Existing stereoscopic display technologies experience resolution reduction due to the division of images into disparity images, leading to discomfort and reduced visual quality for viewers.
Innovation Solution
A stereoscopic display component comprising a backlight board with independent backlight strips and a grating array that guides light to specific viewpoints, using polarization strips to minimize overlap between the visual areas of the left and right eyes, thereby reducing crosstalk and maintaining high visual resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the same image is divided into multiple disparity images for stereoscopic display, then stereoscopic perception is achieved, but resolution is reduced
Solution Approach 1:
The backlight is divided into multiple independent backlight strips corresponding to different disparity images, allowing each strip to be controlled separately. This segmentation enables the system to display multiple disparity images simultaneously without resolving them into separate channels, thus maintaining resolution while achieving stereoscopic perception.
Solution Approach 2:
The patent introduces a temporal dimension by alternating the illumination of different backlight strips at high frequency. This temporal multiplexing allows the human visual system to integrate multiple disparity images into a single stereoscopic perception without the need to divide the spatial image, thereby preserving resolution.
2Adaptability or versatility
If multiple disparity images are displayed simultaneously, then stereoscopic display is enabled, but image crosstalk occurs between left and right eyes
Solution Approach 1:
The backlight strips are illuminated periodically at high frequency, alternating between different disparity images. This periodic illumination combined with the persistence of vision effect ensures that each eye receives the correct disparity image at the appropriate time, preventing crosstalk while enabling stereoscopic display.
Solution Approach 2:
The patent introduces a grating array as an intermediary component that works in conjunction with the polarization strips to control light distribution. This intermediary system ensures that light from different backlight strips is directed to the appropriate eyes, preventing crosstalk between left and right eye images.
3Measurement precision
If the number of backlight strips is increased to match the number of disparity images, then resolution is maintained, but device complexity increases
Solution Approach 1:
The patent employs polarization strips that serve multiple functions: they act as both light modulators and directional control elements. This multi-functionality reduces the need for separate components, thereby controlling device complexity while maintaining the ability to display multiple disparity images at high resolution.
Solution Approach 2:
The system utilizes high-frequency temporal modulation of the backlight strips, changing the illumination parameters dynamically. This approach allows a smaller number of physical backlight strips to effectively display multiple disparity images through temporal multiplexing, reducing device complexity while maintaining resolution.
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 effectively reduces resolution loss and minimizes image crosstalk, enhancing the stereoscopic display experience by ensuring that each eye receives distinct disparity images without overlap, resulting in improved visual resolution and reduced discomfort.
Implementation Method 1
each grating can be used for guiding light emitted from a backlight strip corresponding to the grating to two preset viewpoints
Implementation Method 2
the grating includes a first polarization strip and a second polarization strip, which are arranged adjacently, and a polarization direction of the first polarization strip is vertical to a polarization direction of the second polarization strip
Data Source
AI summary
The present invention provides a stereoscopic display component, a liquid crystal panel and a display device. The stereoscopic display component includes a backlight board and a grating array, wherein the backlight board includes a plurality of backlight sets, each backlight set includes a plurality of backlight strips capable of emitting light independently, the grating array includes a plurality of grating sets in one-to-one correspondence with the plurality of backlight sets, each grating set includes a plurality of gratings in one-to-one correspondence with the plurality of backlight strips in each backlight set, and each grating can be used for guiding light emitted from the backlight strip corresponding to the grating to two preset viewpoints. The present invention further provides a liquid crystal panel and a display device. The display device provided by the present invention has relatively high visual resolution.