Light-Adjusting Layer Layout for Edge Shadow Reduction
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Solution Overview
Problem
Ink-printed light boards suffer from light loss and increased shadowing issues around the display panel, particularly when the distance between light sources is greater, affecting the in-plane visual effects.
Innovation Solution
An electronic device with a light-emitting module featuring a substrate divided into regions, where light-emitting units are accompanied by light-adjusting elements of different dimensions, including a first light-adjusting element in the central region and a second light-adjusting element closer to the edge, optimizing light distribution and reducing shadows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional ink-printed light boards are used, then the graininess of in-plane visual effects is optimized, but light loss occurs and shadowing issues worsen around the display panel
Solution Approach 1:
The patent applies local quality by using different types of light-adjusting elements in different regions of the light board. Specifically, the first light-adjusting elements are used in the first region while the second light-adjusting elements are used in the second region closer to the edge. This regional differentiation allows optimization of light distribution characteristics in different areas, reducing shadowing effects at edges while maintaining good in-plane visual effects in the central region, thereby resolving the contradiction between visual quality and light loss.
2Area of stationary object
If the distance between light sources is increased, then more coverage area is achieved, but shadowing around the display panel becomes more serious
Solution Approach 1:
The patent addresses the shadowing issue by implementing local quality differentiation through two types of light-adjusting elements positioned in different regions. The second light-adjusting elements in the edge region (second region) are specifically designed to compensate for shadowing effects that occur when light sources are spaced farther apart. This allows the system to maintain larger coverage areas while mitigating the harmful shadowing effects at the panel edges.
3Ease of manufacture
If uniform light-adjusting elements are used across the substrate, then manufacturing is simplified, but edge region luminance and visual effects deteriorate
Solution Approach 1:
The patent resolves the contradiction between manufacturing simplicity and edge region performance by applying local quality principles. While the patent acknowledges that uniform elements would be easier to manufacture, it implements different light-adjusting elements (first and second types) in different regions (first and second regions) to optimize edge region luminance and visual effects, accepting the increased manufacturing complexity as necessary for performance improvement.
Data Source
AI summary
An electronic device includes a light-emitting module including a substrate, a plurality of light-emitting units, and a light-adjusting layer. The substrate has a first region and a second region, the second region being closer to the edge of the substrate than the first region. The light-emitting units are disposed on the substrate, wherein the light-emitting units include a first light-emitting unit disposed in the first region and a second light-emitting unit disposed in the second region. The light-adjusting layer includes a first light-adjusting element disposed on the first light-emitting unit and a second light-adjusting element disposed on the second light-emitting unit. The first light-adjusting element and the second light-adjusting element have different dimensions.