Display Panel Notch Power Grid Uniformity
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Solution Overview
Problem
Notches in display panels reduce display performance due to resistance differences in the power grid, affecting uniformity of anode power signals and overall display quality.
Innovation Solution
Incorporating an anode power bus and anode power connection parts in the frame region near the notch, which connect to anode power wires in the display region, forming a parallel channel to compensate for resistance differences and ensure uniform anode power signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If notches are added to the display panel to achieve high screen ratio and meet user requirements, then the display region area is increased, but the uniformity of anode power signals deteriorates due to resistance differences in the power grid
Solution Approach 1:
The anode power wires are divided into multiple segments (first anode power wires and second anode power wires) that extend in different directions and connect to the anode power bus at different locations. This segmentation allows the power distribution network to adapt to the notch geometry, providing multiple parallel current paths that compensate for resistance variations caused by the notch structure.
Solution Approach 2:
The anode power bus is strategically positioned in the frame region adjacent to the notch, and the anode power connection parts are located at specific positions to compensate for local resistance differences. This local optimization ensures that regions affected by the notch receive appropriate power signal compensation, maintaining uniformity across the entire display panel.
2Reliability
If the anode power bus is extended into the frame region to compensate for resistance differences, then the uniformity of anode power signals is improved, but the frame region complexity increases
Solution Approach 1:
The anode power bus serves multiple functions: it distributes power to the anode power wires, compensates for resistance differences caused by the notch, and is integrated into the existing frame region structure. This multi-functionality reduces the need for additional separate compensation structures, thereby limiting the increase in overall complexity.
Solution Approach 2:
The anode power connection parts act as intermediary elements that connect the anode power bus in the frame region to the anode power wires in the display region. These connection parts facilitate power signal transmission while enabling the frame region structure to serve the dual purpose of structural support and power distribution.
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
This solution improves the uniformity of anode power signals across the display panel, enhancing display performance by reducing voltage drops and maintaining consistent light emission intensity.
Implementation Method 1
The anode power connection part at least includes a first anode power connection part to connect the anode power bus to the first anode power wires
Data Source
AI summary
Display panel and display device are provided. The display panel includes a notch region, a display region, a frame region surrounding the display region, and a first base plate. The frame region includes a first frame region and a second frame region opposite to each other. A portion of the first frame region recesses toward the display region to form the notch region. The first base plate includes an anode power bus, an anode power connection part, and anode power connection wires. The anode power wires are disposed in the display region and include first anode power wires extending along a second direction perpendicular to the first direction. At least a portion of the anode power bus is disposed in the first frame region. The anode power connection part includes a first anode power connection part to connect the anode power bus to the first anode power wires.