Lenticular Lens 3D Display Active Light Splitting Resolution Loss
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Solution Overview
Problem
Current non-glasses stereoscopic 3D image display devices, such as the lenticular lens type, face issues like reduced brightness, fabrication difficulties, diffraction, and resolution reduction when displaying 3D images, particularly with LCD panels of high resolutions like FHD, resulting in 3D images being displayed at lower resolutions like VGA.
Innovation Solution
An image display device incorporating a lenticular lens array and an active light splitting element driven at a frame frequency of N×60 Hz, where N is an integer equal to or greater than 1, with a light source module that adjusts from a surface light source to multiple line light sources to maintain 2D and 3D image quality without resolution reduction, using a backlight unit and an active light splitting element with electrically controllable pixels to spatially divide light paths for the observer's left and right eyes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a lenticular lens type non-glasses stereoscopic 3D image display device uses a LCD panel with FHD resolution and multi-view technique, then 3D images can be displayed with multiple viewing angles, but the resolution is greatly reduced to VGA resolution
Solution Approach 1:
The display device segments the light source into multiple line light sources corresponding to different viewing angles. Each line light source emits light to a specific angular range, allowing multiple views to be displayed simultaneously without reducing the resolution of the underlying LCD panel. The LCD panel maintains its full resolution while the light segmentation creates multiple perceptual views.
2Measurement precision
If a parallax barrier type non-glasses stereoscopic 3D image display device is used, then right and left images can be accurately divided through slits, but brightness is reduced and fabrication is difficult
Solution Approach 1:
The patent introduces an active light splitting element as an intermediary between the light source and the lenticular lens array. This element dynamically controls light distribution to different viewing angles, replacing the static parallax barrier slits. The intermediary enables accurate image separation while maintaining brightness by actively directing light rather than passively blocking it.
3Adaptability or versatility
If the light source module irradiates light in the form of multiple line light sources, then N-view 3D format can be displayed, but the device complexity increases
Solution Approach 1:
The light source module employs dynamic control of multiple line light sources that can be independently adjusted in intensity and positioning. This dynamic system allows the device to adapt between 2D and 3D modes and between different numbers of views (N-view) by selectively activating and adjusting the line light sources, rather than requiring fixed hardware for each configuration.
4Ease of operation
If a lenticular lens type display device is used, then stereoscopic 3D images can be displayed without glasses, but fabrication difficulty and diffraction issues arise
Solution Approach 1:
The patent replaces the mechanical precision requirements of traditional lenticular lens fabrication with an active light control system. Instead of relying on precise mechanical lens positioning and alignment, the system uses electrically controllable light sources and an active light splitting element to achieve the same stereoscopic effect, significantly reducing fabrication difficulty.
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
Enables the display of 2D and 3D images without resolution loss, allowing for seamless switching between modes and enhancing the stereoscopic effect by ensuring the observer perceives different pixels with each eye, thereby maintaining image quality and depth perception.
Implementation Method 1
a lenticular lens array... the light source module irradiates light in the form of a plurality of line light sources onto the lenticular lens array
Data Source
AI summary
An image display device and a method of driving the same are provided. The image display device includes a lenticular lens array, a first backlit display element that is positioned on the lenticular lens array and is driven at a frame frequency of N×60 Hz, where N is an integer equal to or greater than 1, and a light source module under the lenticular lens array. The first backlit display element displays a video signal of a 2D format in a 2D mode and displays a video signal of an N-view 3D format in a 3D mode. The light source module irradiates light in the form of a surface light source onto the lenticular lens array in the 2D mode and irradiates light in the form of a plurality of line light sources onto the lenticular lens array in the 3D mode.