Stereoscopic Display Spacer Unit Optimizing Central Depth Plane
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Solution Overview
Problem
Conventional stereoscopic image display devices suffer from poor image quality due to inadequate design of light-transmitting layers and lack of consideration for the object distance between the flat panel display and the lens array unit, resulting in issues like color blocking and poor resolution.
Innovation Solution
A stereoscopic image display device comprising a flat panel display unit, a lens array unit with condenser lenses, and a spacer unit with multiple light-transmitting layers, where the object distance between the display surface and the condenser lens is optimized to achieve an absolute value of the central depth plane between 1 mm and 200 mm, allowing for improved image quality by ensuring proper light convergence and image formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional light-transmitting layers are used without specific design consideration, then the device structure is simple, but the stereo image quality deteriorates with color blocking and poor resolution
Solution Approach 1:
The patent applies parameter changes by optimizing the object distance between the display surface and condenser lens to achieve a specific central depth plane range (1-200mm). This parameter optimization resolves the contradiction by improving stereo image quality through precise distance control while maintaining a relatively simple overall structure.
Solution Approach 2:
The spacer unit is segmented into multiple light-transmitting layers with different functions (protective film, diffuser film, brightness enhancement film, light guide plate). Each layer is designed and optimized independently to address specific optical requirements, thereby improving overall image quality without requiring complete structural redesign.
2Manufacturing precision
If the object distance between flat panel display and lens array unit is not optimized, then the device structure is simple, but the central depth plane position is incorrect causing poor image quality
Solution Approach 1:
The patent directly applies parameter changes by defining the object distance parameter and optimizing it to position the central depth plane within 1-200mm from the display surface. This resolves the contradiction by achieving precise depth plane positioning through parameter optimization rather than complex structural modifications.
Solution Approach 2:
The spacer unit acts as an intermediary element between the display surface and lens array unit, enabling precise control of the object distance. This intermediary structure facilitates accurate positioning of the central depth plane while maintaining a simple overall device configuration.
3Manufacturing precision
If multiple light-transmitting layers are designed and stacked, then the stereo image quality improves, but the device complexity increases
Solution Approach 1:
The patent segments the light-transmitting functionality into multiple specialized layers (protective film, diffuser film, brightness enhancement film, light guide plate), where each layer performs a specific optical function. This segmentation improves image resolution by addressing different optical requirements independently while organizing the complexity into manageable, functionally-distinct components.
Solution Approach 2:
The spacer unit serves multiple functions simultaneously: it maintains the optimized object distance, provides structural support for stacking multiple light-transmitting layers, and enables precise positioning of the lens array unit. This multi-functionality reduces overall device complexity by consolidating multiple roles into a single integrated component.
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 optimized object distance and light-transmitting layer configuration effectively improve stereo image quality by reducing color blocking and enhancing resolution, ensuring a better viewing experience with improved depth perception and clarity.
Implementation Method 1
The lens array unit includes at least one condenser lens, and the at least one condenser lens is disposed on a side of the display surface... light of the integral image is capable of sequentially passing through the spacer unit and the lens array unit, and the lens array unit is configured to enable the integral image to re-converge in a space above the stereoscopic image display device
Data Source
AI summary
A stereoscopic image display device is provided and includes a flat panel display unit, a lens array unit, and a spacer unit. The flat panel display unit has a display surface. The lens array unit includes at least one condenser lens, which is disposed on a side of the display surface. The spacer unit is disposed between the display surface and the condenser lens, such that the lens array unit and the flat panel display unit are spaced apart from each other. In a light field system of the stereoscopic image display device, an object distance between the display surface of the flat panel display unit and the condenser lens of the lens array unit is configured to enable an absolute value of a central depth plane (CDP) of the stereoscopic image display device in the light field system to be between 1 mm and 200 mm.