Immersive Display With Misaligned Subpixels And Varying Film Thickness
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Solution Overview
Problem
Current personal immersive devices for virtual and augmented reality suffer from high weight due to large imaging lenses, leading to discomfort and reduced stereoscopic depth and immersion, with existing smartphone-based methods failing to provide optimal virtual reality experiences due to suboptimal display design and added weight from components like batteries.
Innovation Solution
A personal immersive device with a smaller imaging lens size than the display panel, utilizing a substrate with subpixels, planarization film, and misaligned light-emitting elements and color filters to optimize light direction, ensuring all light reaches the imaging lens without loss, thereby reducing overall weight and enhancing comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the imaging lens size is reduced to decrease device weight, then weight is reduced and comfort is improved, but light collection capability may be compromised
Solution Approach 1:
The patent applies local quality by varying the thickness of the planarization film in different regions of the display panel. The film is thicker at the edges and thinner at the center, creating different optical paths for light emitted at different positions. This local variation in film thickness compensates for the reduced light collection area of the smaller lens by optimizing light direction and intensity distribution across the panel surface.
Solution Approach 2:
The patent introduces a new dimension - the thickness dimension of the planarization film - to solve the light collection problem. By controlling light propagation in the vertical dimension through varied film thickness, the system compensates for the reduced horizontal light collection area of the smaller lens, effectively directing more light toward the lens without increasing its size.
2Ease of operation
If the imaging lens size is reduced to decrease device weight, then comfort is improved, but image quality and immersion may deteriorate
Solution Approach 1:
The patent applies local quality by varying the thickness of the planarization film in different regions of the display panel. The film is thicker at the edges and thinner at the center, creating different optical paths for light emitted at different positions. This local variation in film thickness compensates for the reduced light collection area of the smaller lens by optimizing light direction and intensity distribution across the panel surface.
Solution Approach 2:
The patent changes the physical parameter of the planarization film thickness to optimize optical performance. By adjusting the film thickness distribution across the display panel, the system modifies light emission characteristics to ensure high-quality image delivery to the reduced-size lens, maintaining image quality despite the lens size reduction.
3Illumination intensity
If light-emitting elements are misaligned with color filters in side areas, then light direction is optimized for the imaging lens, but manufacturing complexity increases
Solution Approach 1:
The patent applies local quality by making the light-emitting elements and color filters aligned in the central region but misaligned in the side areas. This local variation in alignment configuration optimizes light direction for the imaging lens while maintaining manufacturing feasibility through a structured, region-based approach rather than requiring complex individual adjustments for each element.
Solution Approach 2:
The patent introduces asymmetry in the alignment between light-emitting elements and color filters, particularly in the side areas of the display panel. This asymmetric configuration is specifically designed to direct light more effectively toward the imaging lens, improving illumination intensity and optical efficiency while maintaining a systematic manufacturing approach.
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 results in a lighter, more comfortable personal immersive device that maintains high-quality video information transmission to the imaging lens, improving user experience by minimizing weight and maximizing immersion without light loss.
Implementation Method 1
misaligned light-emitting elements and color filters to optimize light direction, ensuring all light reaches the imaging lens without loss
Data Source
AI summary
A personal immersive device for virtual reality and/or augmented reality and a display thereof are disclosed. The personal immersive device comprises a plurality of subpixels arranged in a matrix on the substrate; a planarization film applied over an entire surface of a substrate; color filters and light-emitting elements disposed in the respective subpixels, over the planarization film; and an imaging lens that is smaller in size than the substrate and spaced a given distance apart from the substrate, wherein, in the first side area and second side area, the light-emitting elements are misaligned from the color filters.