Curved Display Substrate Frame-Free Optical Redirection
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Solution Overview
Problem
Conventional display panel manufacturing methods result in thick panels with reduced brightness and image distortions due to multiple layers of lenses, which also cause tiling seams in large-screen displays, affecting image quality.
Innovation Solution
A display panel with a curved substrate and a single optical device, such as a convex lens or prism group, installed above the frame edge regions to change light direction, reducing thickness and eliminating tiling seams while maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple layers of lenses are installed on the display substrate to achieve frame-free display, then the frame-free display effect is improved, but the overall thickness of the display panel increases significantly
Solution Approach 1:
The display substrate is designed with a curved shape at the frame edge regions, allowing the curved portion to redirect light from the frame edges toward the display region. This curvature eliminates the need for additional lens layers while achieving frame-free display, thereby reducing overall panel thickness.
Solution Approach 2:
The patent transitions from adding optical components in the vertical dimension (multiple lens layers) to utilizing the horizontal/curved dimension of the substrate itself. By curving the frame edge regions, the solution redirects light paths in a different spatial dimension, avoiding thickness increase.
2Ease of manufacture
If multiple layers of lenses are installed on the display substrate to eliminate frame edges, then the frame-free display is achieved, but light loss increases and brightness decreases
Solution Approach 1:
The curved frame edge regions act as integrated optical elements that redirect light without the additional interfaces and material layers that cause light loss in conventional lens structures. This maintains higher light transmission and brightness.
Solution Approach 2:
The patent merges the substrate structure with the optical function by making the frame edge regions themselves curved, eliminating the need for separate lens components. This integration reduces light loss by removing additional optical interfaces and materials.
3Ease of manufacture
If multiple layers of lenses are installed on the display substrate to achieve frame-free display, then the frame-free effect is improved, but image distortions increase due to light refraction
Solution Approach 1:
The curved frame edge regions redirect light through geometric shaping rather than through multiple lens interfaces. This reduces the number of refraction events, thereby minimizing image distortions while still achieving frame-free display.
Solution Approach 2:
By integrating the optical function directly into the substrate structure, the patent eliminates the need for separate lens layers that would cause multiple refractions. This single integrated approach reduces cumulative optical distortions.
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 achieves a frame-free display with improved light transmission and reduced image distortions, enabling thinner, brighter, and higher-quality large-screen displays without the need for multiple lens layers.
Implementation Method 1
light refraction caused by the two layers of lenses may also cause image distortions
Data Source
AI summary
A display panel producing frame-free image displays is provided. The display panel includes a display substrate (1) and an optical device (2) in a light illuminating side of the display substrate (1). The display substrate (1) includes frame edge regions (11) and a display region (12) abutting the frame edge regions (11). The display substrate (1) is curved at the frame edge regions (11). The optical device (2) is above the display region (12) and the frame edge regions (11), and changes a direction of light illuminated by the display substrate (1) such that images displayed through the display region produce a frame-free display.