High Refraction Layer Position Control in Sensor Layers
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Solution Overview
Problem
Existing electronic devices face challenges in maintaining the position and optical efficiency of high refraction layers, which affect the display quality and reliability of sensors.
Innovation Solution
The electronic device incorporates a high refraction layer on a sensor layer with a specific structure, including conductive layers, insulation layers, and openings in the organic insulation layer to control the position of the high refraction layer and prevent diffusion, while ensuring electrical connectivity through contact holes and dam parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a high diffraction layer is used to improve optical efficiency, then light path control is enhanced, but the position and refractive index stability of the layer becomes difficult to maintain
Solution Approach 1:
The patent divides the encapsulation structure into multiple functional layers: a base encapsulation layer, an organic insulation layer, and an inorganic insulation layer. The high diffraction layer is selectively positioned within the organic insulation layer, creating distinct functional zones that separate the optical enhancement function from the structural stability function, thereby maintaining both optical efficiency and position stability.
Solution Approach 2:
The organic insulation layer serves as an intermediary medium that holds the high diffraction layer in a stable position. This intermediate layer provides a matrix that anchors the high diffraction layer, preventing position drift while allowing the layer to maintain its optical properties for enhanced light path control.
2Reliability
If multiple insulation layers are added to control high diffraction layer position, then reliability is improved, but device complexity increases
Solution Approach 1:
The organic insulation layer performs multiple functions simultaneously: it provides electrical insulation, mechanical support, and positional control for the high diffraction layer. The inorganic insulation layer complements this by providing additional structural stability and protection. This multi-functionality reduces the need for separate dedicated components, thereby managing complexity while improving reliability.
Solution Approach 2:
The patent employs a composite insulation structure combining organic and inorganic materials. This composite approach leverages the advantages of both material types: the organic layer provides flexibility and adhesion for position control, while the inorganic layer provides rigidity and protection. The synergistic combination achieves reliable position control without requiring excessive individual layers.
3Reliability
If openings are defined in the organic insulation layer, then adhesion control of high refraction layer is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent introduces openings in the organic insulation layer at specific locations where the high diffraction layer needs to adhere to underlying structures. This local modification of the insulation layer's continuity provides targeted adhesion zones without compromising the overall insulation function. The openings are strategically positioned to enable controlled adhesion while maintaining manufacturing feasibility through standard patterning techniques.
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 enhances the optical efficiency and reliability of the electronic device by maintaining the position of the high refraction layer and preventing performance degradation, thereby improving sensing and display qualities.
Implementation Method 1
a high refraction layer disposed on the sensor layer
Data Source
AI summary
Provided is an electronic device including a display element layer, an encapsulation layer, a sensor layer including a sensing electrode disposed in an active area, and a sensing line disposed in the line area, electrically connected with the sensing electrode, and extending in a first direction, and a high refraction layer disposed on the sensor layer. The sensor layer further includes a first conductive layer disposed on the encapsulation layer, a second conductive layer disposed on the first conductive layer, an inorganic insulation layer disposed between the first conductive layer and the second conductive layer, and an organic insulation layer disposed between the second conductive layer and the high refraction layer. In the line area, at least one opening is defined in the organic insulation layer, the at least one opening extending in a second direction, and the inorganic insulation layer is exposed by the at least one opening.