Reverse Prism Sheet Layout for Wider-Angle Naked-Eye 3D Displays
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Solution Overview
Problem
Current naked-eye 3D display devices suffer from inadequate 3D display effects, particularly due to limitations in light diffusion and optical simulation, which affect viewing angle and stereoscopic perception.
Innovation Solution
The display device incorporates a cover plate with recessed dot regions, a display module with a reverse prism sheet between the display panel and naked-eye 3D grating, and a backlight module with multiple light bars to enhance light diffusion and optical simulation, improving the 3D display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a naked-eye 3D grating is used without special glasses, then the ease of operation is improved, but the 3D display effect is insufficient
Solution Approach 1:
A reverse prism sheet is introduced as an intermediary optical element between the display panel and the naked-eye 3D grating. This prism sheet diverges the light emitted from the display panel before it reaches the grating, enhancing the optical simulation effect and improving the 3D display quality while maintaining the glasses-free viewing advantage
Solution Approach 2:
The patent changes the optical parameters of the light path by introducing the reverse prism sheet with specific refractive index and geometric parameters. This modifies the light divergence angle and optical path length, thereby enhancing the stereoscopic effect without requiring special glasses
2Illumination intensity
If light diffusion is enhanced to improve viewing angle, then the 3D display effect is improved, but the device complexity increases
Solution Approach 1:
The reverse prism sheet serves as a simple intermediary element that achieves enhanced light diffusion and viewing angle without requiring complex multi-component optical systems. The prism sheet is positioned between the display panel and grating, providing an effective solution with minimal structural complexity
Solution Approach 2:
The patent optimizes the parameters of the reverse prism sheet (such as refractive index, prism angle, and thickness) to achieve the desired light diffusion and viewing angle. By carefully selecting these parameters, the system achieves improved performance without excessive complexity
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 enhanced light diffusion and optical simulation significantly improve the stereoscopic display effect, increasing viewing angles and overall 3D perception without the need for special glasses.
Implementation Method 1
a reverse prism sheet disposed between the display panel and the naked-eye 3D grating, wherein the reverse prism sheet includes a substrate and a prism layer disposed on a side of the substrate, and the prism layer is disposed toward the display panel
Data Source
AI summary
A display device is provided. The display device includes a display module including a display panel, a naked-eye 3D grating, and a reverse prism sheet disposed between the display panel and the naked-eye 3D grating. The reverse prism sheet includes a substrate and a prism layer disposed on a side of the substrate, and the prism layer is disposed toward the display panel. The display device provided by the present disclosure may diverge the light emitted from the backlight through the display panel into the naked-eye 3D grating to enhance the stereoscopic optical effect.