Display Panel Bus Lines Balancing Conductivity and Light Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display panels face challenges in integrating additional functions and maintaining high display area usage while ensuring thin and lightweight design, particularly in expanding the range of applications by incorporating transmission areas without compromising display quality.
Innovation Solution
A display panel design with distinct areas for different sub-pixel circuits and light-emitting diodes, utilizing conductive bus lines with varying materials and layers to enhance light transmittance and conductivity, and arranging sub-pixel circuits in peripheral areas to maintain display functionality and transmission capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If sub-pixel circuits are arranged in the display area to control light-emitting diodes, then electrical connectivity is ensured, but the display area is reduced
Solution Approach 1:
The display panel is divided into distinct display area and peripheral area, with sub-pixel circuits located in the peripheral area outside the display area. This spatial segmentation allows the display area to be fully utilized for light emission while circuit components are accommodated in the peripheral region, resolving the conflict between display area maximization and circuit functionality.
2Reliability
If conductive bus lines use highly conductive metal materials, then electrical connectivity is improved, but light transmittance is reduced
Solution Approach 1:
The conductive bus line is constructed as a composite structure with a metal layer providing high conductivity and a transparent conductive oxide layer providing light transmittance. This composite material approach combines the advantages of both materials, achieving reliable electrical connectivity while maintaining high light transmittance in the display area.
3Weight of stationary object
If display panel is made thinner and lighter to expand usage range, then portability is improved, but integration of additional functions becomes more difficult
Solution Approach 1:
The display panel employs a multi-layer vertical structure with different functional layers stacked in the thickness direction. This dimensional organization allows multiple functions (display, sensing, connectivity) to be integrated within a thin profile by utilizing the vertical space efficiently, maintaining lightweight design while enhancing versatility.
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 allows for enhanced display area utilization with integrated transmission areas, maintaining high display quality and flexibility in design, supporting various functionalities and applications.
Implementation Method 1
The first portion may include a transparent conductive oxide, and the second portion includes a metal layer. The first portion may include a higher light transmittance than the second portion
Data Source
AI summary
A display panel may include a first display area, a second display area, and a third display area. A plurality of first light-emitting diodes may be arranged in the first display area, a plurality of second light-emitting diodes and a transmission area may be arranged in the second display area, and a plurality of third light-emitting diodes may be arranged in the third display area. The display panel may include a peripheral area outside the display area, a plurality of first sub-pixel circuits respectively electrically connected to the plurality of first light-emitting diodes, a plurality of second sub-pixel circuits respectively electrically connected to the plurality of second light-emitting diodes, and a plurality of third sub-pixel circuits respectively electrically connected to the plurality of third light-emitting diodes.