Light-Shielding Imaging Structure for 3D Display Eye-Strain Relief
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Solution Overview
Problem
Current 3D display technologies based on stereoscopic vision cause vergence-accommodation conflict, leading to visual fatigue and vertigo due to misalignment of monocular focusing and binocular convergence.
Innovation Solution
A display apparatus with a light-shielding layer and light-transmitting holes arranged in a specific pattern to allow light rays from multiple pixels to enter a monocular pupil simultaneously, ensuring monocular focusing and binocular convergence on the same plane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If stereoscopic vision display is used to form 3D display, then binocular convergence is achieved, but monocular focusing and binocular convergence are not on one plane causing vergence-accommodation conflict
Solution Approach 1:
The display apparatus segments the light field into multiple discrete light rays corresponding to different sight points. Each pixel group emits light rays that pass through specific light-transmitting holes to reach different locations on the user's pupil, creating segmented visual pathways that enable both focusing and convergence alignment.
Solution Approach 2:
The patent introduces a spatial dimension by positioning multiple light-transmitting holes at different locations and orientations. This allows light rays from the same pixel group to reach different parts of the pupil, creating a multi-dimensional light field distribution that resolves the vergence-accommodation conflict by aligning focal planes with convergence planes.
2Manufacturing precision
If light-transmitting holes are arranged to allow multiple light rays to enter monocular pupil, then imaging quality improves, but manufacturing precision requirements increase
Solution Approach 1:
The light-transmitting spacer layer serves multiple functions simultaneously: it provides mechanical support, defines the positions of light-transmitting holes, and acts as a template for forming the light-shielding layer. This multi-functionality reduces the need for separate precision alignment steps and simplifies the manufacturing process while maintaining high positioning accuracy.
Solution Approach 2:
The light-transmitting holes are formed in the spacer layer before the light-shielding layer is applied. This preliminary action establishes the precise geometric framework in advance, allowing subsequent layers to be formed relative to this pre-defined structure, thereby reducing cumulative alignment errors and simplifying the overall manufacturing process.
3Manufacturing precision
If light-shielding layer with light-transmitting holes is added to display panel, then imaging structure is improved, but device complexity increases
Solution Approach 1:
The light-shielding layer and the light-transmitting hole array are merged into a single integrated component. The light-transmitting spacer layer combines the functions of mechanical support, optical aperture definition, and structural alignment, eliminating the need for separate components and reducing overall device complexity while maintaining high imaging quality.
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 enables a 3D display that reduces visual fatigue and vertigo by aligning focusing and convergence, while maintaining a clear 3D image with high imaging quality and simplicity in manufacturing.
Implementation Method 1
light rays emitted by the pixels pass through the light-transmitting holes
Implementation Method 2
a thickness f of the light-transmitting spacer layer satisfies a condition as follows: f≥L×(O-D)/(n×D) where n is a refractive index of the light-transmitting spacer layer
Implementation Method 3
an imaging structure on a side of the light-transmitting spacer layer facing away from the display panel, including a light-shielding layer, where the light-shielding layer includes a plurality of light-transmitting holes
Data Source
AI summary
Provided are a display apparatus and a method for manufacturing the same. The display apparatus comprises: a display panel, which comprises a plurality of pixel groups, wherein each pixel group comprises a plurality of pixels; a light-transmitting spacer layer, which is located on a light-emitting side of the display panel; and an imaging structure, which is located on the side of the light-transmitting spacer layer facing away from the display panel, and comprises a light-shielding layer, wherein the light-shielding layer comprises a plurality of light-transmitting holes matching the pixel groups, light rays emitted by the pixels pass through the light-transmitting holes, and light rays emitted by at least two pixels pass through the light-transmitting holes so as to simultaneously enter a monocular pupil of a user.