Optical Layered Display Structure for Low Reflection and Visibility
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Solution Overview
Problem
Existing display apparatuses face challenges in providing high-quality images with improved light efficiency and visibility, particularly as they become thinner and more lightweight.
Innovation Solution
The display apparatus incorporates a low-reflection inorganic layer, thin-film encapsulation layer, and an optical layer with a light-shielding layer and insulating layers to enhance light emission efficiency and reduce external light reflectance, using materials like inorganic and organic encapsulation layers to protect the display elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional display structures are used, then manufacturing is simpler, but light efficiency and visibility are limited
Solution Approach 1:
The optical control layer is divided into multiple distinct layers: a light-shielding layer with light-blocking properties and an insulating layer with light-absorbing properties. Each layer performs a specific function, allowing precise control over different aspects of light interaction (reflection vs. absorption) to improve light efficiency while maintaining manageable structural complexity
Solution Approach 2:
The patent combines materials with different optical properties in the optical control layer - light-shielding materials (such as black matrix materials) and light-absorbing insulating materials (such as yellow-colored insulating materials). This composite approach enables simultaneous achievement of light blocking and light absorption functions, enhancing overall light efficiency without requiring complex external components
2Illumination intensity
If polarizing films and color filters are used to improve image quality, then visibility improves, but manufacturing complexity and costs increase
Solution Approach 1:
The patent extracts and eliminates the need for traditional polarizing films and color filters by implementing an optical control layer that directly controls light interaction at the pixel level. The light-shielding and insulating layers work together to achieve visibility enhancement through light blocking and absorption mechanisms, removing complex filtering components from the display structure
Solution Approach 2:
The optical control layer structures (light-shielding layer and insulating layer) perform multiple functions simultaneously - they control light reflection, absorb external light, and define pixel boundaries. This self-service approach allows the display structure to achieve visibility improvement through its own integrated components rather than requiring separate polarizing films and color filters
3Length of moving object
If the display apparatus is made thinner, then portability improves, but light efficiency and image quality deteriorate
Solution Approach 1:
The patent applies local quality optimization by positioning the light-shielding and insulating layers specifically at the pixel level and emission areas. The optical control layer structures are localized to where light interaction is most critical, enabling effective light management in a thin profile without requiring thick uniform layers across the entire display
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 display quality and visibility by reducing external light reflectance and enhancing light emission efficiency, ensuring high-quality image provision.
Implementation Method 1
the first insulating layer includes a material configured to absorb light in a wavelength band of about 380 nm to about 500 nm
Implementation Method 2
The second insulating layer may selectively absorb light in a first wavelength range and light in a second wavelength range of a visible light spectrum
Implementation Method 3
a low-reflection inorganic layer on the display element
Data Source
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AI summary
A display apparatus includes: a substrate; a display element arranged on the substrate; a low-reflection inorganic layer arranged on the display element; a light-shielding layer arranged on the low-reflection inorganic layer and including an opening corresponding to an emission area of the display element; a first insulating layer arranged on the light-shielding layer and including an opening corresponding to the emission area of the display element; and a second insulating layer filling the opening of the light-shielding layer and the opening of the first insulating layer, wherein the first insulating layer includes a material configured to absorb light in a wavelength band of about 380 nm to about 500 nm, and a thickness of the first insulating layer is greater than a thickness of the light-shielding layer.