Microstructured Diffusion Layer for Uniform Thin-Display Lighting
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Solution Overview
Problem
Existing electronic devices face issues with film grains and suboptimal visual effects, particularly as they trend towards thinness and lightweight designs, necessitating improved light uniformity and visual enhancement.
Innovation Solution
The electronic device incorporates a substrate with a light-emitting unit and a first diffusion element featuring microstructure monomers arranged in different directions, along with prism layers to enhance light uniformity and improve visual effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If electronic devices are designed to be thinner and lighter, then portability and aesthetics are improved, but light uniformity deteriorates and film grains become more noticeable
Solution Approach 1:
The patent applies local quality by introducing a diffusion element with specific microstructures (prism shapes, lens shapes, or rough surfaces) at the light-emitting region. These microstructures are locally concentrated to scatter and redirect light, creating uniform illumination despite the overall thin device design. The diffusion element is positioned only where light emission occurs, providing targeted light redistribution without adding significant weight or thickness.
2Device complexity
If traditional light-emitting structures are used, then device simplicity is maintained, but visual effects are suboptimal and film grains are noticeable
Solution Approach 1:
The patent introduces a diffusion element as an intermediary component between the light-emitting unit and the display surface. This mediator scatters and redistributes light to eliminate film grains and improve visual uniformity. The diffusion element can be integrated into existing display layers or applied as a separate coating, providing visual enhancement with minimal impact on overall device complexity.
3Length of moving object
If light-emitting units are positioned closer to the display surface, then device thickness is reduced, but light uniformity and visual quality deteriorate
Solution Approach 1:
The patent changes the optical parameters of the light-emitting region by incorporating diffusion elements with specific microstructural geometries (prism angles, lens curvatures, surface roughness). These parameter changes enable effective light scattering and redistribution even when the light-emitting unit is positioned close to the display surface, maintaining light uniformity despite reduced device thickness.
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 improves light uniformity, reducing film grains and enhancing the visual quality of electronic devices, particularly in display, communication, and vehicle applications.
Implementation Method 1
The first diffusion element is disposed on the light-emitting unit and includes a first surface. The first surface has multiple first microstructure monomers... improves light uniformity, reducing film grains and enhancing the visual quality
Data Source
AI summary
The disclosure provides an electronic device including a substrate, a light-emitting unit and a first diffusion element. The light-emitting unit is disposed on the substrate. The first diffusion element is disposed on the light-emitting unit and includes a first surface. The first surface has a plurality of first microstructure monomers. The plurality of first microstructure monomers are disposed in a first direction and a second direction, and the first direction is different from the second direction. The electronic device according to the embodiments of the disclosure is capable of improving the problem of film grains or enhancing the visual effect.