Curved Display Panel Corner Area for VR Headset Distortion Reduction
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Solution Overview
Problem
Conventional display panels in electronic apparatuses, particularly those used in head-mounted displays for augmented and virtual reality, suffer from screen distortion due to the focal distance between the display panel and optical lenses, which is exacerbated in corner areas where the panel is flat, leading to a less immersive user experience.
Innovation Solution
A display panel design featuring a substrate with a curved corner area where the corner edge approaches the center, combined with an optical unit having lenses with curved edges that coincide in curvature with the corner edges, reducing screen distortion by minimizing the total track length of light from the display to the user's eye.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the display panel is kept flat in corner areas, then the manufacturing process is simple, but screen distortion occurs due to focal distance from optical lenses
Solution Approach 1:
The display panel is designed with different curvature characteristics in different regions: the corner areas have a first curvature radius while the central area has a second curvature radius. This local differentiation allows the corner regions to be optimized for reducing screen distortion relative to optical lenses, while maintaining manufacturing feasibility through defined curvature transitions.
Solution Approach 2:
The invention applies curved surface geometry to the display panel, specifically designing the corner areas with a first curvature radius and the central area with a second curvature radius. This curvature design enables the panel to better match the focal requirements of optical lenses in VR/AR headsets, reducing screen distortion without requiring the entire panel to be uniformly curved.
2Reliability
If the display panel is curved in corner areas to reduce screen distortion, then the user experience is improved, but the structural complexity increases
Solution Approach 1:
Rather than curving the entire display panel, the invention applies curvature selectively to corner areas with a first curvature radius, while maintaining a different curvature radius in the central area. This localized approach improves user experience by reducing screen distortion in critical corner regions while minimizing the overall structural complexity of the panel.
3Area of stationary object
If the corner edge is positioned farther from the center, then the display area is maximized, but the focal distance to optical lenses increases causing more distortion
Solution Approach 1:
The invention optimizes the position of corner edges and adjusts the curvature radius of corner areas to balance display area and screen distortion. By carefully selecting the first curvature radius for corner areas and positioning corner edges at optimal locations, the design maximizes the usable display area while maintaining acceptable focal distance relationships with optical lenses.
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 effectively reduces screen distortion and allows for a more immersive experience by optimizing the display panel's curvature in corner areas and the optical unit's design, enhancing the overall usability and efficiency of the electronic apparatus.
Implementation Method 1
minimizing the total track length of light from the display to the user's eye
Data Source
AI summary
A display panel including a first edge extending in a first direction, a second edge extending in a second direction intersecting with the first direction, and a corner edge extending in a curved shape from the first edge to the second edge includes: a substrate including a front area overlapping a center of the display panel and a corner area extending from the front area to the corner edge; and a pixel arranged over the substrate, wherein the display panel is curved in the corner area in a direction in which the corner edge approaches the center of the display panel.