LED Light-Shielding Layer Layout for Display Quality Control
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Solution Overview
Problem
Existing display devices face challenges in achieving high display quality while reducing production costs, particularly in the mass production of light-emitting diode (LED) display devices.
Innovation Solution
A light-emitting device configuration that includes a substrate, a light-emitting diode, a first layer with an opening, a color filter layer, and a second layer, where the second layer shields light emitted from the diode, with the minimum width of the first layer's opening being less than that of the second layer's opening, enhancing display quality and potentially reducing production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the opening width of the first layer is reduced to improve light distribution, then display quality is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent divides the opening structure into two separate layers (first layer and second layer) with different opening widths. The first layer has a smaller opening width for precise light control, while the second layer has a larger opening width that is easier to manufacture. This segmentation allows each layer to be optimized independently, resolving the contradiction between light distribution quality and manufacturing precision requirements.
2Illumination intensity
If the second layer is added to shield light and improve display quality, then display quality is improved, but device complexity increases
Solution Approach 1:
The second layer serves multiple functions: it provides light shielding to improve display quality, acts as a structural support layer, and facilitates the overall device assembly. By making this layer multi-functional, the patent justifies the increased structural complexity with corresponding functional benefits, resolving the contradiction between display quality improvement and device 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
The configuration improves display quality by optimizing the light-emitting diode's light distribution and may lower production costs through efficient manufacturing processes.
Implementation Method 1
Light-emitting diodes (LEDs) generate electromagnetic radiation (for example, light) by applying the recombination of an electron-hole pair in a p-n junction
Implementation Method 2
The color filter layer is disposed on the light-emitting diode
Implementation Method 3
The second layer is configured to shield light emitted from the light-emitting diode
Data Source
AI summary
A light-emitting device includes a substrate, a light-emitting diode, a first layer, a color filter layer, and a second layer. The light-emitting diode is disposed on the substrate. The first layer is disposed on the substrate and has an opening. At least a portion of the light-emitting diode is disposed in the opening of the first layer. The color filter layer is disposed on the light-emitting diode. The second layer is disposed on the first layer and has an opening overlapped with the opening of the first layer. The second layer is configured to shield light emitted from the light-emitting diode. In the cross-sectional view of the light-emitting device, the minimum width of the opening of the first layer is less than the minimum width of the opening of the second layer.