Light-Emitting Assembly With Light Guide Layer for Full Icon Coverage
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Solution Overview
Problem
Light-emitting elements in existing light-emitting assemblies are suspended in air, leading to dispersed light that fails to completely cover the intended light-transmitting area, resulting in inefficient illumination.
Innovation Solution
A light-emitting assembly design that incorporates a light guide layer with light emitters embedded within, reflective layers, and optional diffusion particles and light guide dots to direct and concentrate light through a light-shielding layer, ensuring efficient illumination of a defined area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light-emitting elements are suspended in air, then the structure is simple, but the light is dispersed and lost, failing to cover the light-transmitting area completely
Solution Approach 1:
A light guide layer is introduced as an intermediary medium between the light-emitting elements and the light-transmitting area. This light guide layer receives light from the light-emitting elements and guides it to illuminate the light-transmitting area effectively, solving the light dispersion problem while maintaining structural simplicity
Solution Approach 2:
The patent transitions from a direct vertical light path to a multi-dimensional light guidance system using light guide layers with reflective layers and light guide dots, enabling light to travel through multiple paths and dimensions to achieve complete coverage of the light-transmitting area
2Use of energy by moving object
If light-emitting elements are suspended in air, then the assembly thickness is reduced, but light utilization efficiency decreases
Solution Approach 1:
The patent converts the potentially harmful light dispersion and loss into beneficial light guidance by introducing reflective layers and light guide dots within the light guide layer. These structures redirect scattered light back toward the light-transmitting area, improving light utilization efficiency
Solution Approach 2:
The light guide layer is constructed as a composite structure incorporating light-emitting elements, reflective layers, and light guide dots within a light guide material matrix, creating a multi-functional component that simultaneously guides light, reflects scattered light, and maintains structural integrity
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 enhances light utilization and coverage, allowing more light to be directed through a specific area, such as a function icon, improving the light-emitting assembly's efficiency and reducing thickness.
Implementation Method 1
a reflective layer, which has a light-emitting element reflection function
Implementation Method 2
a light guide layer with light emitters embedded within, reflective layers, and optional diffusion particles and light guide dots to direct and concentrate light
Implementation Method 3
optional diffusion particles and light guide dots to direct and concentrate light
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
A light-emitting assembly (100, 101, 102, 103, 104, 105, 106, 107, 108, 109) with improved illumination includes a first substrate (1), a light guide layer (2), light emitters (3), a touch sensor (4), a first reflective layer (8), and a second reflective layer (10). The first substrate (1) defines a light-transmitting area (TA). The light emitters (3) are in the light guide layer (2). The light emitters (3) emit light to illuminate the light-transmitting area (TA). The touch sensor (4) is opposite to the light-transmitting area (TA). The first reflective layer (8) is between the first substrate (1) and the light guide layer (2). The second reflective layer (10) is on a side of the light guide layer (2) away from the first substrate (1). An electronic device (200) and a method for making the light-emitting assembly (100, 101, 102, 103, 104, 105, 106, 107, 108, 109) are also disclosed.