Transparent Electrode Display Layout for See-Through Image Viewing
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Solution Overview
Problem
Conventional light-emitting diode display devices lack a sufficient transmission area to effectively display external images, limiting their ability to showcase external objects while maintaining image display functionality.
Innovation Solution
A light-emitting display device design incorporating a substrate with a circuit element, insulating layers, and transparent electrodes, where a transmission area is created adjacent to emission areas to allow external light to pass through, while maintaining the display of light-emitting diode images, utilizing inorganic semiconductor-based PN diodes and a vertical-type light-emitting diode configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a light-emitting diode display device is designed to display images, then image display functionality is achieved, but the transmission area is insufficient to effectively display external images
Solution Approach 1:
The display device is divided into distinct emission areas and transmission areas, with the transmission area specifically designed to allow external light passage. The transparent electrode structure is segmented to provide both emission functionality and transmission pathways, creating dedicated zones for different display modes within the overall display device.
Solution Approach 2:
Different regions of the display device are assigned different optical properties: emission areas contain light-emitting diodes for active image display, while transmission areas are optimized with transparent electrodes and minimal obstructions to maximize external light transmission. This local differentiation allows each region to perform its specific function optimally.
2Area of stationary object
If transparent electrodes and insulating layers are added to enable transmission area functionality, then external light transmission is improved, but device complexity increases
Solution Approach 1:
The transparent electrode serves multiple functions: it acts as an electrical conductor for the light-emitting diode, provides structural support, enables light transmission in the transmission areas, and serves as part of the overall device architecture. This multi-functionality reduces the need for additional separate components.
Solution Approach 2:
The transparent electrode and insulating layer structures are integrated into the existing display device architecture, combining transmission functionality with the electrical connection and structural framework. The opening in the insulating layer is merged with the transparent electrode design to create a unified transmission pathway.
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 a display device with a substantial transmission area, allowing for the simultaneous display of external images and light-emitting diode-generated images, enhancing visibility and functionality by optimizing the layout and materials used in the device.
Implementation Method 1
at least one light-emitting diode disposed on the first transparent electrode and defining the at least one emission area
Implementation Method 2
a transmission area adjacent to the at least one emission area and transmitting external light
Data Source
AI summary
A display device including at least one emission area emitting light and a transmission area adjacent to the at least one emission area and transmitting external light. The display device includes a substrate and a circuit element including at least one transistor and a storage capacitor disposed on the substrate. An insulating layer is disposed on the circuit element and includes a contact hole. A first transparent electrode is disposed on the insulating layer and is electrically connected to the circuit element through the contact hole. At least one light-emitting diode is disposed on the first transparent electrode and defines the at least one emission area. The at least one light-emitting diode comprises a PN diode including inorganic semiconductor based-materials. A portion of the first transparent electrode is located in the transmission area.