Display Apparatus With Insulating Grooves For High Resolution
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Solution Overview
Problem
Current display panels for VR, AR, SR, and MR devices face challenges in achieving high resolution, high color reproducibility, high luminance, and reliability while maintaining low manufacturing costs, particularly due to limitations in lens focus adjustment and screen enlargement issues.
Innovation Solution
A display apparatus is designed with a specific structure including a first insulating layer, a light-emitting element, and a light-receiving element, featuring a depressed portion and multiple insulating layers with aluminum and oxygen, which enhances resolution, color reproducibility, and luminance, and allows for a cost-effective manufacturing method.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the display panel resolution is increased for VR/AR devices, then the sense of reality and immersion is improved, but the manufacturing complexity and cost increase
Solution Approach 1:
The display panel is divided into multiple sub-pixels (red, green, blue) arranged in a specific pattern, with each sub-pixel being a独立的发光单元. This segmentation allows high resolution to be achieved through precise arrangement of simple units rather than manufacturing complex high-resolution structures as a whole
Solution Approach 2:
Different regions of the display panel have different structures - the pixel electrode regions have specific patterns while the insulating layers have depressed portions. This local differentiation allows optimization of each region for its specific function while maintaining overall high resolution
2Manufacturing precision
If the display panel resolution is increased for VR/AR devices, then the sense of reality and immersion is improved, but the manufacturing cost increases
Solution Approach 1:
Multiple insulating layers (first insulating layer with depressed portion, second insulating layer, third insulating layer) are combined to form a unified sealing structure that simultaneously provides insulation, planarization, and protection functions, reducing the need for separate manufacturing processes
Solution Approach 2:
The insulating layers serve multiple functions: electrical insulation between electrodes, mechanical support, planarization of the surface, and sealing of the organic layers. This multi-functionality reduces the number of separate components needed, simplifying manufacturing
3Reliability
If multiple insulating layers are added to improve device reliability and resolution, then the display quality is improved, but the device complexity increases
Solution Approach 1:
The insulating layers are arranged in a nested configuration where the first insulating layer with depressed portion is positioned at the bottom, followed by the second insulating layer, and then the third insulating layer on top. Each layer is nested within the vertical stack, creating a compact multi-layer structure that provides enhanced reliability without excessive horizontal 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 solution provides a display apparatus with extremely high resolution, high color reproducibility, high luminance, and reliability, addressing the limitations of existing technologies while enabling low-cost manufacturing.
Implementation Method 1
By voltage application to this element, light emission can be obtained from the light-emitting organic compound
Implementation Method 2
The second organic layer includes a photoelectric conversion layer
Data Source
AI summary
A display apparatus with extremely high resolution is provided. A display apparatus with high display quality is provided. The display apparatus includes a first light-emitting element and a second light-emitting element over a first insulating layer, a second insulating layer, and a third insulating layer. The first light-emitting element includes a first pixel electrode and a first organic layer. The second light-emitting element includes a second pixel electrode and a second organic layer. The first insulating layer includes a groove-like region provided along a side of the first pixel electrode in a plan view. The groove-like region includes a first region overlapping with the first pixel electrode and a second region overlapping with the second pixel electrode. The first region and the second region each have a width greater than or equal to 20 nm and less than or equal to 500 nm. The second insulating layer includes a region in contact with a top surface of the first organic layer, a region in contact with a side surface of the first organic layer, and a region located below the first pixel electrode. The third insulating layer includes a region in contact with a top surface of the second organic layer, a region in contact with a side surface of the second organic layer, and a region located below the second pixel electrode.