Foldable Display Sub Panel with Dual Lens Arrays for 3D Projection
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Solution Overview
Problem
Current transparent display technologies do not effectively enable floating and 3D image display on foldable user terminal devices, limiting their usability and user satisfaction in various environments.
Innovation Solution
A display apparatus comprising a main panel, a sub panel with first and second lens arrays, a hinge for displacement, sensors to sense angles, and a controller to adjust video display based on sensed angles, allowing for floating and 3D image projection on a transparent medium between the lens arrays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If transparent display technology is used in foldable devices, then transparency and visibility are improved, but floating and 3D image display capabilities are insufficient
Solution Approach 1:
The sub panel is divided into multiple lens arrays (first lens array and second lens array) that can be independently positioned and controlled. Each lens array corresponds to specific regions of the main panel, enabling different display modes (floating image, 3D image, transparent display) by selectively activating and positioning specific lens arrays relative to their corresponding main panel regions.
Solution Approach 2:
The sub panel is designed to be movable relative to the main panel through a hinge mechanism, allowing dynamic repositioning of lens arrays. The system uses angle sensors to detect the relative position and automatically adjusts which lens arrays are active, enabling transition between different display modes (floating, 3D, transparent) based on the folding angle and usage scenario.
2Adaptability or versatility
If multiple lens arrays are added to enable floating and 3D display, then display versatility is improved, but device complexity increases
Solution Approach 1:
Multiple lens arrays and their control circuits are integrated into a single sub panel that folds with the main panel. The hinge mechanism combines the movement control of all lens arrays into one unified structure, and the controller integrates the logic for selecting and positioning different lens arrays based on angle sensor input, reducing overall system complexity despite the presence of multiple optical elements.
Solution Approach 2:
The sub panel with multiple lens arrays serves multiple functions: it can display floating images, 3D images, and transparent displays, and can also be positioned in different configurations for various viewing scenarios. This multi-functional design eliminates the need for separate devices or additional components for each display mode, thereby reducing overall device complexity.
3Manufacturing precision
If the sub panel is made displaceable to enable floating images, then image projection quality is improved, but mechanical reliability decreases
Solution Approach 1:
Angle sensors continuously monitor the relative position between the main panel and sub panel, providing feedback to the controller. The controller uses this feedback to automatically adjust and position the appropriate lens arrays at the correct locations relative to the main panel, ensuring precise focus alignment for floating and 3D image display while compensating for mechanical variations in the hinge movement.
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 floating images and 3D images from both sides, enhancing user experience by adjusting display positions and brightness/color values based on sensed angles, providing overlay and bi-directional 3D image capabilities.
Implementation Method 1
a first lens array and a second lens array facing the first lens array so as to share a focus with the first lens array
Data Source
AI summary
A display apparatus includes a main panel which displays video, a sub panel which projects and provides the video displayed on the main panel by including a first lens array and a second lens array facing the first lens array so as to share a focus with the first lens array, a hinge which connects the sub panel and the main panel in a manner in which the sub panel is displaceable from the main panel according to user manipulation, a sensor which senses angles formed by the main panel and the sub panel, and a controller which controls so that the video is adjusted based on the sensed angles and displayed on the main panel.