Display Panel Border Width Reduction via Inter-Substrate Signal Routing
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Solution Overview
Problem
Existing display devices with narrow borders face challenges in efficiently transmitting gate drive signals across substrates, leading to wider borders and reduced display efficiency.
Innovation Solution
A display panel design featuring a first substrate with a conducting wire, a second substrate with gate lines and connecting terminals, and a connecting layer that electrically connects these terminals, allowing for effective signal transmission and reducing border width by transferring wiring from the second substrate to the first substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If gate drive signals are transmitted across substrates in existing display devices, then the display device can function, but the border width increases and display efficiency decreases
Solution Approach 1:
The patent transfers the gate line wiring from the second substrate to the first substrate through the connecting layer, changing the spatial dimension of signal transmission. This allows the gate line to be routed through the connecting layer rather than along the border of the second substrate, thereby reducing border width while maintaining signal transmission functionality.
Solution Approach 2:
The connecting layer serves as an intermediary between the first substrate and the second substrate, enabling the gate line to transmit signals through this intermediate medium. By using the connecting layer as a mediator, the patent achieves cross-substrate signal transmission without requiring the gate line to extend along the substrate borders, thus reducing border width.
2Length of moving object
If wiring is transferred from the second substrate to the first substrate, then border width is reduced, but the complexity of connecting layers increases
Solution Approach 1:
The patent segments the gate line into portions located on the first substrate and portions located on the second substrate, with the connecting layer bridging these segments. This segmentation allows the complex connecting layer to be divided into discrete connection points, making the overall structure more manageable and manufacturable while achieving border width reduction.
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 enables efficient gate drive signal transmission, narrowing the border of the display device and improving display efficiency by ensuring precise electrical connections between substrates.
Implementation Method 1
the first connecting terminal and the second connecting terminal are electrically connected to two ends of the first conducting wire via the connecting layer respectively
Data Source
AI summary
A display panel includes a first substrate including a first conducting wire disposed on an inner side of the first substrate, a second substrate disposed opposite to the first substrate, where a gate line and a first connecting terminal for transmitting a gate drive signal are disposed on a side of the second substrate facing the first substrate, the gate line includes a second connecting terminal at one end of the gate line; and a connecting layer disposed between the first substrate and the second substrate. The first connecting terminal and the second connecting terminal are electrically connected to two ends of the first conducting wire via the connecting layer respectively, and the second connecting terminal is electrically connected to the first connecting terminal via the first conducting wire, so the gate drive signal transmitted from the first connecting terminal is received by the gate line.