Display Component-Area Lens Structures for Light Around Connection Lines
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Solution Overview
Problem
Existing display apparatuses face challenges in integrating various components while maintaining high light transmittance and reducing wiring resistance, particularly in regions where connection lines are present.
Innovation Solution
The display apparatus incorporates a design with first and second organic insulating layers, featuring lens structures with curved portions to refract light around connection lines, and a refractive index difference between the layers to enhance light transmission and reduce wiring resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connection lines are disposed in the component area to electrically connect pixel circuits to display elements, then electrical connectivity is improved, but light transmittance deteriorates
Solution Approach 1:
The patent applies curvature to the lens structures formed on the organic insulating layers. The first and second lens structures have curved surfaces that refract light around the connection lines, allowing light to bypass the metallic connection lines and reach the display elements, thus maintaining both electrical connectivity and light transmittance in the component area
Solution Approach 2:
The patent introduces lens structures as intermediary elements between the light source and the display elements. These lens structures, formed on the organic insulating layers, act as optical mediators that redirect light around the connection lines, enabling light to pass through the component area where connection lines are present
2Adaptability or versatility
If the component area is increased to integrate various functions, then functional versatility is improved, but wiring resistance increases
Solution Approach 1:
The curved lens structures refract light in a controlled manner that reduces optical interference with the connection lines. This allows for optimized routing of connection lines across the component area, reducing the overall wiring resistance while maintaining the integrated functional components
Solution Approach 2:
The patent applies different properties to different regions: the lens structures are positioned specifically where connection lines are present, and the refractive index of the second organic insulating layer is differentiated from the first to create localized optical control zones that reduce wiring resistance in critical areas
3Illumination intensity
If multiple organic insulating layers with different refractive indices are used, then light transmission is improved, but manufacturing complexity increases
Solution Approach 1:
The patent divides the organic insulating layer into two distinct layers with different refractive indices. The first organic insulating layer has a first refractive index and the second organic insulating layer has a second refractive index, creating segmented optical zones that work together to refract light around connection lines while maintaining manageable manufacturing complexity through standardized deposition processes
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 design achieves improved light transmittance and reduced wiring resistance in the component area, ensuring efficient operation of integrated components such as cameras and sensors.
Implementation Method 1
lens structures with curved portions to refract light around connection lines
Implementation Method 2
a refractive index difference between the layers to enhance light transmission
Data Source
Figure 1A
Figure 1B
Figure 2A
AI summary
A display apparatus includes connection lines connecting pixel circuits in a non-display area or intermediate area to display elements in a component area, a first organic insulating layer in the component area, and a second organic insulating layer on the first organic insulating layer, wherein the connection lines are disposed between the first organic insulating layer and the second organic insulating layer, wherein an upper surface of the first organic insulating layer includes a first lens structure, wherein the first lens structure includes a first curved portion disposed between two connection lines adjacent to each other, and an upper surface of the second organic insulating layer includes a second lens structure, wherein the second lens structure includes a second curved portion overlapping the first curved portion, and a refractive index of the second organic insulating layer is different from a refractive index of the first organic insulating layer.