Display Light Structure With Scatterers for Reflection and Emission
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Solution Overview
Problem
Existing display devices face challenges in improving external light reflection and light emission efficiency.
Innovation Solution
A display device design featuring a light structure with a light transmitting portion, a light shielding portion, and a reflective portion, where the light transmitting portion includes a base resin and scatterers, such as light scattering particles, to enhance light scattering and reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional display panel structure is used, then the device is simple to manufacture, but external light reflection and light emission efficiency are insufficient
Solution Approach 1:
The light structure is segmented into three distinct functional portions: a light transmitting portion, a light shielding portion, and a reflective portion. Each portion is disposed at different positions relative to the light emitting element to perform specific optical functions. This segmentation allows optimization of light emission efficiency through targeted light management while maintaining manufacturing feasibility by using separate formation processes for each portion.
Solution Approach 2:
Different regions of the display panel are assigned different optical properties: the light transmitting portion allows light passage, the light shielding portion blocks light, and the reflective portion reflects light. This local differentiation of optical qualities enables enhanced overall light emission efficiency by optimizing light management in specific areas without requiring the entire structure to be complex.
2Illumination intensity
If scatterers are added to the light transmitting portion, then light scattering and reflection are enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The light transmitting portion incorporates scatterers with specific refractive indices that differ from the base resin, creating controlled light scattering effects. By adjusting parameters such as scatterer concentration, size distribution, and refractive index contrast, the patent optimizes external light reflection while maintaining manufacturability through standard coating and curing processes.
Solution Approach 2:
The light transmitting portion is formulated as a composite material consisting of a base resin matrix with dispersed scatterer particles. This composite structure combines the transparency and flexibility of the resin with the light-scattering properties of the particles, achieving enhanced external light reflection without requiring precise control of individual particle positions, thus maintaining reasonable manufacturing precision requirements.
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 proposed design improves external light reflection and light emission efficiency by scattering and re-reflecting light, resulting in enhanced display performance.
Implementation Method 1
The scatterer may include light scattering particles
Data Source
AI summary
A display device comprises a first and a second electrode disposed on a base substrate and spaced apart from each other, the second electrode facing the first electrode, a light emitting elements disposed between the first electrode and the second electrode, and a light structure disposed on the light emitting elements. The light structure includes a light transmitting portion disposed on the light emitting element, and a light shielding portion including at least one opening pattern. The light shielding portion is disposed on the light transmitting portion.