Light-Shielding Structure with Windows for Display Devices
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Solution Overview
Problem
Display quality degradation caused by ambient light sources, particularly in outdoor settings, due to reflection of ambient images.
Innovation Solution
A display device incorporating a light-shielding structure with a light-shielding layer and windows, where the light-shielding layer is made of light-absorption materials and arranged on a protective layer, allowing photoelectric units to be viewed through corresponding windows, effectively absorbing ambient image light and reducing reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a light-shielding structure with light-absorption materials is added to the display device, then the reflection of ambient light is reduced and display quality is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The light-shielding structure is segmented into multiple functional layers: a light-shielding layer with light-absorption materials for absorbing ambient light, a transparent substrate for structural support and light transmission, and a protective layer for surface protection. Each layer performs a specific function, allowing the complex light-shielding requirement to be achieved through modular, manageable components that can be manufactured and assembled separately.
Solution Approach 2:
The transparent substrate acts as an intermediary between the light-shielding layer and the protective layer, as well as between the light-shielding layer and the photoelectric units. It allows light to pass through while providing structural support and positioning, mediating the interaction between the light-absorption function and the display function without compromising either.
2Object-affected harmful factors
If a light-shielding layer with light-absorption materials is arranged on the protective layer, then ambient light absorption is enhanced, but the manufacturing precision and alignment requirements increase
Solution Approach 1:
The light-shielding layer is not uniformly applied across the entire display surface but is locally positioned only in regions where ambient light absorption is needed, such as around the photoelectric units and at the edges of the display. This local application reduces material usage and simplifies alignment requirements compared to a full-coverage approach.
Solution Approach 2:
The light-shielding layer, transparent substrate, and protective layer are arranged in a planar configuration where their surfaces are substantially coplanar or closely aligned. This equipotential arrangement minimizes optical distortions and simplifies the manufacturing alignment requirements by ensuring that all layers are at similar potential positions relative to the light path.
3Illumination intensity
If windows are defined in the light-shielding layer to correspond to photoelectric units, then light transmission to photoelectric elements is maintained, but the manufacturing complexity increases
Solution Approach 1:
The light-shielding layer is segmented with windows at specific locations corresponding to the photoelectric units. These windows create a patterned structure that allows light to pass through to the photoelectric elements while maintaining the light-shielding function in other areas. The segmentation is designed to match the pixel arrangement, making the manufacturing process more straightforward.
Solution Approach 2:
The window pattern in the light-shielding layer is designed to copy or match the arrangement of photoelectric units below. By replicating the pixel grid pattern in the light-shielding structure, the manufacturing process can use the same alignment references and tools used for placing the photoelectric units, thereby simplifying the overall manufacturing complexity.
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
Improves display quality by minimizing the impact of ambient light, enhancing visibility and contrast by absorbing reflective light, thereby addressing the issue of display quality degradation.
Implementation Method 1
The light-shielding structure has a light-shielding layer including light-absorption materials
Data Source
AI summary
A display device includes a display module and a light-shielding structure. The display module has a substrate, a plurality of photoelectric units and a protective layer. The substrate defines with a first surface and a second surface. The photoelectric units are arranged on the first surface of the substrate, and each photoelectric unit has at least one photoelectric element. The protective layer is arranged on the first surface of the substrate and is filled between the photoelectric elements. The light-shielding structure is arranged on and connected to the protective layer. The light-shielding structure has a light-shielding layer including light-absorption materials and a plurality of windows defined in the light-shielding layer. The windows respectively correspond to the photoelectric units, and the photoelectric units are viewed through the corresponding windows in the direction perpendicular to the first surface of the substrate.