Curved Semiconductor Substrate Indentations for Near-Eye Display Distortion
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Solution Overview
Problem
Near-eye displays used in virtual reality and augmented reality applications face challenges in achieving high resolution and low power consumption, while also dealing with image distortions due to the close proximity to the eyeball, which conventional displays struggle to address effectively.
Innovation Solution
The development of a near-eye display device utilizing a semiconductor substrate with a curved design and strategically placed indentations on the backside surface to minimize mechanical strength loss while achieving the desired curvature, thereby reducing image distortions and enhancing display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a flat display design is used, then manufacturing is simpler, but image distortions occur due to close proximity to the eyeball in near-eye displays
Solution Approach 1:
The patent applies curvature to the display surface by forming indentations on the backside of the semiconductor substrate. This causes the front surface to curve outward, matching the curvature of the human eyeball. The curved display surface reduces image distortions in near-eye displays while maintaining compatibility with standard semiconductor manufacturing processes.
2Object-affected harmful factors
If the backside surface is highly curved, then image quality improves, but mechanical strength decreases
Solution Approach 1:
The patent applies local quality by creating discrete indentations at specific locations on the backside of the substrate rather than uniform curvature. The indentations are strategically positioned to generate the desired surface curvature where needed while leaving other areas intact to maintain structural strength. This localized approach balances optical performance with mechanical integrity.
3Manufacturing precision
If a curved display design is implemented, then image quality and resolution improve, but device complexity increases
Solution Approach 1:
The patent employs self-service by utilizing the substrate's own backside surface to generate the curvature through indentations. This eliminates the need for separate curved substrates, complex mounting structures, or additional curvature-inducing components. The curvature is inherently created by the indentation pattern itself, simplifying the overall device architecture while achieving high display resolution.
Data Source
AI summary
A near-eye display includes a semiconductor substrate that has a first curved surface and a second curved surface opposite to each other, and a plurality of luminous pixels formed over the first curved surface of the semiconductor substrate. The luminous pixels cooperatively form a display area of the near-eye display. The second curved surface of the semiconductor substrate is formed with a plurality of indentations at a portion that corresponds in position to the display area.