Vehicle Lighting Device Ink Layer Segmentation
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Solution Overview
Problem
Conventional vehicle lighting devices lack aesthetic appeal and safety features, as they primarily rely on texture and color differentiation between unlit and lit states, which can confuse drivers and affect safety.
Innovation Solution
A lighting device with a substrate, light sources, a resin layer, a phosphor layer, and multiple ink layers of varying heights and patterns, where the ink layers create three-dimensional images that change with luminance levels, providing a safer and more aesthetically pleasing appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional lighting devices use simple color depth differentiation between unlit and lit states, then the device complexity is low, but the safety and aesthetics are degraded due to driver confusion
Solution Approach 1:
The ink layer is segmented into multiple layers (first ink layer and second ink layer) with different heights, allowing the device to display different patterns at different luminance levels. This segmentation enables the lighting device to provide distinct visual information for safety purposes while maintaining a relatively simple overall structure.
Solution Approach 2:
The lighting device dynamically changes its appearance based on luminance levels. The different height ink layers create different patterns that are visible at different brightness levels, allowing the device to adapt its visual output to operational conditions (unlit vs. lit states) to improve safety and aesthetics.
2Shape
If conventional lighting devices use uniform ink layer height, then the manufacturing precision is easy to maintain, but the aesthetic appeal and visual interest are reduced
Solution Approach 1:
Different regions of the ink layer are given different heights (first ink layer and second ink layer with different heights), creating local variations in the surface topology. This local quality differentiation enhances aesthetic appeal by creating three-dimensional visual interest while allowing standard manufacturing processes to be used.
Solution Approach 2:
The ink layer is extended into the vertical dimension by creating different heights (first ink layer and second ink layer with different heights), transforming a traditionally two-dimensional surface into a three-dimensional structure. This dimensional change adds aesthetic complexity without fundamentally altering the manufacturing approach.
3Illumination intensity
If conventional lighting devices lack pattern differentiation, then the device complexity is low, but the visibility and driver recognition are insufficient
Solution Approach 1:
The ink layer is divided into multiple segments (first ink layer and second ink layer) with different heights, creating distinct patterns that are visible at different luminance levels. This segmentation provides enhanced visibility and driver recognition while maintaining relatively simple device architecture.
Solution Approach 2:
The different height ink layers create different optical effects and patterns that change with luminance levels, providing dynamic visual information. This allows the lighting device to convey different visual messages (patterns) depending on whether it is in an unlit or lit state, improving visibility and driver recognition.
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 device enhances safety by providing a three-dimensional image that is not visible in stop mode, reducing driver confusion, and offers a dynamic aesthetic effect by changing the three-dimensional appearance based on luminance levels, improving visibility and design.
Implementation Method 1
a phosphor layer disposed on the resin layer
Data Source
AI summary
A lighting device disclosed in an embodiment of the invention includes a plurality of light sources disposed on a substrate; a resin layer disposed on the substrate and the plurality of light sources; a phosphor layer disposed on the resin layer, and an ink layer disposed on the phosphor layer, wherein the ink layer has a first ink layer and a second ink layer having a height greater than that of the first ink layer with respect to the upper surfaces of the phosphor layer, and it possible to provide a three-dimensional image of the surface.