Display Panel Wiring Layout for Lower GDL Capacitance
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Solution Overview
Problem
In large-size Ultra High Definition (UHD) display panels, the increased size of Gate Driver Less (GDL) wires leads to higher capacitive and resistance loads, affecting display performance.
Innovation Solution
A display panel design featuring a transmission unit with a first wiring layer, a second wiring layer, and a dielectric layer, where the first wires are electrically coupled with the display unit via second wires, with specific configurations such as overlapping projections and defined spaces to reduce capacitance and resistance, enhancing signal transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the size of GDL wires is increased to support large-size UHD display panels, then the display screen size and resolution are improved, but the capacitive and resistance loads increase, degrading display performance
Solution Approach 1:
The first wires are divided into multiple segments (first parts) with spaces between them, rather than being continuous. This segmentation reduces the overlapping area with second wires, thereby reducing planar capacitance and resistance-capacitance while maintaining the electrical connection function across the large display panel
Solution Approach 2:
The patent introduces a vertical dimension by creating spaces (through holes or grooves) in the dielectric layer between the first and second wiring layers. This vertical separation reduces the capacitive coupling between adjacent wires in different layers, addressing the capacitive load issue in large-size panels
2Reliability
If the wire size is increased to maintain electrical connection in large-size panels, then the electrical connection is maintained, but the resistance load increases, affecting display performance
Solution Approach 1:
By segmenting the first wires into multiple parts with spaces between them, the patent reduces the overall resistance-capacitance product while maintaining electrical connectivity. The segmented structure reduces parasitic effects without compromising the fundamental electrical connection between the transmission unit and display unit
Solution Approach 2:
The dielectric layer with embedded spaces acts as an intermediary structure between the first and second wiring layers. This intermediary structure provides electrical isolation while allowing controlled capacitance, thereby managing the resistance and capacitive loads in the wiring system
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 configuration reduces planar capacitances and resistance-capacitance, thereby improving display performance and efficiency in large-size UHD display panels.
Implementation Method 1
a dielectric layer, wherein the dielectric layer is located between the first wiring layer and the second wiring layer
Data Source
AI summary
A display panel and a display screen are provided in the disclosure. The display panel includes a transmission unit and a display unit electrically coupled with the transmission unit. The transmission unit is configured to transmit a driving signal to the display unit. The transmission unit includes a first wiring layer, a second wiring layer, and a dielectric layer. The dielectric layer is located between the first wiring layer and the second wiring layer. The first wiring layer is provided with first wires. The second wiring layer is provided with second wires. The first wires have first parts. Projections of the first parts on the dielectric layer overlap projections of the second wires on the dielectric layer. The first wires are electrically coupled with the display unit via the second wires. The first parts define at least one first space.