Display Panel Signal Line Materials for Camera Region Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Bezel-less display devices face challenges in achieving uniform display and improved light transmittance in camera display regions due to high resistance of metal oxide signal lines, leading to non-uniform display and reduced shooting effectiveness.
Innovation Solution
Employing a combination of metal and transparent metal oxide signal lines in different display regions, with metal signal lines in the camera region to reduce resistance and ensure uniform voltage distribution, and transparent metal oxide lines elsewhere to maintain light transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If transparent metal oxide signal lines are used in the camera display region, then light transmittance is improved, but resistance increases leading to non-uniform display
Solution Approach 1:
The patent applies different signal line materials in different display regions: transparent metal oxide signal lines are used in non-camera regions where light transmittance is critical, while metal signal lines are used in the camera display region where low resistance is critical. This local differentiation resolves the contradiction by optimizing each region for its primary function.
Solution Approach 2:
The patent uses a composite approach by combining two different signal line materials (metal and transparent metal oxide) within the same display panel. Each material is deployed in specific regions based on functional requirements, creating a hybrid system that achieves both high light transmittance and uniform display performance.
2Reliability
If metal signal lines are used throughout the display, then resistance is reduced and display uniformity is improved, but light transmittance in the camera region deteriorates
Solution Approach 1:
The patent implements regional differentiation by using metal signal lines specifically in the camera display region where low resistance is essential for uniformity, while using transparent metal oxide signal lines in other regions where light transmittance is the primary concern.
Solution Approach 2:
The display panel is segmented into different functional regions (camera display region and non-camera regions), with each region having optimized signal line materials. This segmentation allows the system to simultaneously achieve low resistance where needed and high transmittance where needed.
3Illumination intensity
If transparent metal oxide signal lines are used, then light transmittance is maintained, but voltage distribution becomes non-uniform due to high resistance
Solution Approach 1:
The patent addresses voltage distribution by using metal signal lines with inherently lower resistance in the camera display region, ensuring uniform voltage delivery to pixels in that region while maintaining high light transmittance in other regions through transparent metal oxide signal lines.
Data Source
AI summary
Provided is a display panel. The display panel includes: a base substrate, including a display region and a periphery region at least partially surrounding the display region, wherein the display region includes a first display region and a second display region disposed at least on one side of the first display region, a light transmittance of the first display region being greater than a light transmittance of the second display region; a plurality of first pixel units disposed on the base substrate and in the first display region; and a plurality of signal lines disposed at least in the first display region and electrically connected to the plurality of first pixel units, wherein the plurality of signal lines include a plurality of first signal lines and a plurality of second signal lines.