Display Insulating Layer Openings for Light-Transmissive Sensing
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Solution Overview
Problem
Existing display apparatuses face challenges in efficiently integrating additional functions, such as sensing capabilities, within the display area while maintaining high light transmittance and structural integrity.
Innovation Solution
A display apparatus design featuring a substrate with defined transmission areas, insulating layers with convex and concave edges, and conductive layers with undercut structures, along with a manufacturing method that includes laser processing to form convex and concave edges, allowing for the integration of display elements and conductive layers without compromising light transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional functions (such as sensing capabilities) are integrated within the display area, then the functionality and performance of the display apparatus are enhanced, but the light transmittance and structural integrity may be compromised
Solution Approach 1:
The display area is segmented into multiple functional zones: display elements for image display, transmission areas for light passage, and sensing areas for additional functions. The insulating layer is also segmented with multiple openings (first openings for display, second openings for sensing) that are spatially separated and independently configured, allowing each zone to optimize its function without compromising others.
Solution Approach 2:
Different regions of the insulating layer are given different local qualities through varying opening configurations. The first openings in display areas have specific edge structures (convex portions) optimized for light transmission, while second openings in sensing areas have different configurations suited for sensor integration. This local differentiation allows simultaneous optimization of display quality and sensing functionality.
2Adaptability or versatility
If additional functions are integrated within the display area, then the functionality is enhanced, but the structural integrity may be compromised
Solution Approach 1:
The insulating layer is segmented into multiple functional zones with different opening configurations, allowing structural optimization for each function while maintaining overall integrity. The substrate provides a unified structural foundation that supports both display and sensing functions without compromise.
Solution Approach 2:
The insulating layer is formed with pre-configured openings and edge structures before subsequent layer deposition. The convex portions and concave portions are created in advance during insulating layer formation, establishing a stable structural framework that guides subsequent manufacturing steps and ensures structural integrity throughout the device assembly.
3Illumination intensity
If convex portions are added to the edge of the first opening in the insulating layer, then light transmittance is improved, but the manufacturing complexity increases
Solution Approach 1:
The formation of convex portions is merged with the standard insulating layer fabrication process. The insulating layer is deposited with a pattern that inherently creates convex and concave regions at opening edges, combining the light-transmission optimization with the basic layer formation step rather than requiring separate complex processing.
Solution Approach 2:
The edge structure of openings is modified by changing geometric parameters (adding convex portions with specific dimensions and spacing). These parameter changes are incorporated into the design specifications of the insulating layer, allowing standard manufacturing processes to produce the optimized structure through precise pattern definition rather than complex post-processing.
4Adaptability or versatility
If multiple openings with different configurations are formed in the insulating layer, then the integration of display and sensing functions is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The insulating layer is segmented into regions with different opening configurations (first openings for display, second openings for sensing). Each segment is designed with standardized patterns that can be manufactured using the same base process, reducing precision requirements compared to completely custom configurations.
Solution Approach 2:
The insulating layer structure serves multiple functions simultaneously: electrical insulation, mechanical support, and optical management. The same insulating layer material and base structure are used throughout, with only the opening patterns varying by region. This universal approach allows standard manufacturing processes to produce multiple functional zones with consistent quality.
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 solution enables effective integration of additional functions within the display area while maintaining high light transmittance and structural integrity, enhancing the display apparatus's functionality and performance.
Implementation Method 1
removing a portion of the organic material layer, a portion of the electrode layer, and a portion of the capping layer, the portions corresponding to the first opening, by irradiating a laser beam onto at least a portion of the conductive material layer
Data Source
AI summary
A display apparatus includes a substrate, display elements overlapping the substrate and spaced from each other, and an insulating layer arranged between the substrate and the elements. The insulating layer may include a protrusion and an opening. The opening is positioned between the display elements in a plan view of the display apparatus. An edge of the opening includes two convex portions. The protrusion is positioned between the two convex portions and protrudes toward an inner part of the opening.