Arc-Shaped Light Shielding Structure for Wide-Gamut Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in achieving high-quality luminance and wide color gamut while maintaining cost-effectiveness and simplicity in manufacturing processes.
Innovation Solution
The display device incorporates a substrate with a first and second light shielding layer, light filter layers, and light-emitting diodes. A spacer element with an arc-shaped cross-section is used between the light shielding layers to enhance light management and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional display device structures are used, then manufacturing process is relatively simple, but light-emitting efficiency and color gamut are insufficient
Solution Approach 1:
The display device is divided into multiple functional layers including substrate layer, light-emitting diode layer, first light shielding layer, spacer element layer, first light filter layer, second light shielding layer, and second light filter layer. Each layer performs a specific function to optimize light emission and color filtering independently, improving overall light-emitting efficiency while maintaining manageable complexity through modular design.
Solution Approach 2:
Multiple layers are nested within each other in a stacked configuration, with the light-emitting diode embedded in the substrate, light shielding layers positioned above and below the light filter layers, and spacer elements integrating multiple functions. This nested structure allows compact arrangement of complex functional elements without significantly increasing device footprint or manufacturing complexity.
2Illumination intensity
If high-quality luminance and wide color gamut are achieved through conventional means, then manufacturing costs increase and process complexity increases
Solution Approach 1:
Different layers are designed with specific local properties: the light shielding layers use materials optimized for light blocking, the light filter layers use materials with specific spectral transmission characteristics for color filtering, and the spacer elements use materials with appropriate mechanical and optical properties. This localized optimization of material properties achieves high luminance quality and wide color gamut without requiring expensive uniform materials throughout the entire device.
Solution Approach 2:
The invention optimizes specific parameters such as the thickness of each layer, the refractive index of materials, the spectral characteristics of light filter layers, and the geometric configuration of spacer elements. By carefully controlling these parameters, the device achieves high-quality luminance and wide color gamut while using cost-effective materials and standard manufacturing processes.
3Productivity
If light management is improved through additional layers and elements, then light-emitting efficiency increases, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The spacer elements serve multiple functions simultaneously: they maintain precise spacing between the light shielding layers and light filter layers, provide structural support, and optimize light path geometry. The light shielding layers both block unwanted light and define the optical cavity. This multi-functionality reduces the need for additional dedicated components, improving light-emitting efficiency without proportionally increasing device complexity or manufacturing difficulty.
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
This configuration improves light-emitting efficiency, reduces production costs, and simplifies the manufacturing process while achieving high luminance and wide color gamut capabilities.
Implementation Method 1
a first light filter layer disposed in one of the plurality of first openings
Implementation Method 2
a plurality of light-emitting diodes disposed on the substrate
Data Source
AI summary
A display device is provided, and includes a substrate and a first light shielding layer disposed on the substrate and defining a plurality of first openings. The display device includes a first light filter layer disposed in one of the first openings and a plurality of light-emitting diodes disposed on the substrate. The display device includes a second light shielding layer disposed between the substrate and the first light shielding layer, and having a plurality of second openings. The at least part of the light-emitting diodes are disposed in the second openings respectively. The display device also includes a spacer element disposed between the first light shielding layer and the second light shielding layer, wherein from a cross-section view, a shape of the spacer element is arc-shaped, and a shape of the second light shielding layer is arc-shaped.