Display Panel Circular Transmission Openings for Clear Under-Display Imaging
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Solution Overview
Problem
Existing display apparatuses face issues with light scattering, leading to distorted images due to the structure of light-emitting diodes and transmission areas, which affects the clarity of the images displayed.
Innovation Solution
A display apparatus design featuring a first display area with first light-emitting diodes, a second display area partially surrounded by the first, and a light-blocking insulating layer defining emission areas, along with an anti-reflection layer and color filters, including a blocking metal layer and varying horizontal wiring configurations to manage light transmission and reduce resistance deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a component is configured to scatter light that is incident thereon, then light can be distributed across the display area, but light detected by the component is not clear and distorted images may be detected
Solution Approach 1:
The display area is divided into a first display area with first light-emitting diodes and a second display area with second light-emitting diodes and transmission areas. This segmentation allows different regions to have different optical functions, with the second display area specifically designed for clear light transmission to the component while the first display area provides general illumination.
Solution Approach 2:
The second display area is configured with specific local properties including transmission areas with circular openings and a blocking metal layer that defines openings corresponding to each transmission area. This local quality optimization ensures that light reaching the component through the second display area maintains clarity while still providing sufficient illumination.
2Ease of operation
If horizontal wirings have different widths to connect pixel circuits, then electrical connection is achieved, but resistance deviations occur across the display areas
Solution Approach 1:
The width of the second horizontal wiring is varied at different positions to compensate for resistance deviations. Specifically, the width is adjusted in different regions (first, second, third, and fourth regions) to maintain substantially similar total resistance across the first and second horizontal wirings, ensuring uniform electrical characteristics despite the structural differences in wiring paths.
3Manufacturing precision
If a blocking metal layer is added to define openings for transmission areas, then light transmission control is improved, but device complexity increases
Solution Approach 1:
The blocking metal layer serves multiple functions simultaneously: it defines the openings corresponding to transmission areas for precise light transmission control, provides structural support, and can be integrated with existing manufacturing processes. This multi-functionality justifies the additional layer by delivering multiple benefits from a single structural addition.
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 enhances image clarity by minimizing light scattering and maintaining uniform resistance across the display areas, thereby improving the overall display quality and reducing the likelihood of distorted images.
Implementation Method 1
a light-blocking insulating layer defining emission areas of the first light-emitting diodes and the second light-emitting diodes
Implementation Method 2
an anti-reflection layer above the light-blocking insulating layer
Implementation Method 3
including a light-blocking layer and color filters
Data Source
AI summary
Provided is a display apparatus. The display apparatus includes a first display area in which first light-emitting diodes are arranged, a second display area at least partially surrounded by the first display area in plan view, and in which display element groups including second light-emitting diodes and transmission areas are arranged, at least one of the transmission areas having a circular shape, a light-blocking insulating layer defining emission areas of the first light-emitting diodes and the second light-emitting diodes, and an anti-reflection layer above the light-blocking insulating layer, and including a light-blocking layer and color filters, wherein one or more of the transmission areas are defined in plan view by a circular opening defined by at least one of the light-blocking layer or the light-blocking insulating layer.