Tiling LCD Substrate Junction Minimization
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Solution Overview
Problem
Tiling mode LCD display devices have a significant non-display area due to the junction region between connected panels, which limits their overall display size and efficiency.
Innovation Solution
The solution involves connecting lower substrates with a first and second seal pattern at the boundary region, reducing the size of the junction region by using a single seal pattern and enhancing adhesion with a thermoplastic material like epoxy, and ensuring strong contact through etching and curing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the seal pattern is reduced in size to minimize the junction region, then the non-display area is reduced, but the adhesion between panels may be compromised
Solution Approach 1:
By separating the sealing function ( seal pattern) from the adhesion function (adhesion member), the invention allows each component to be optimized for its specific purpose. The seal pattern can be minimized to reduce the junction region, while the adhesion member is specifically designed and positioned to provide strong bonding between panels, ensuring adhesion strength is not compromised.
Solution Approach 2:
The adhesion member acts as an intermediary component between adjacent panels, providing a dedicated bonding interface. This intermediary element ensures strong adhesion between panels independent of the seal pattern's size, allowing the seal pattern to be reduced without affecting the mechanical connection strength.
2Ease of manufacture
If a single seal pattern is used at the boundary region, then the manufacturing process is simplified and non-display area is reduced, but the sealing function may be insufficient
Solution Approach 1:
The invention segments the sealing and adhesion functions into separate components. The single seal pattern is optimized for defining the liquid crystal injection region with precise geometry, while the adhesion member provides the bonding function. This segmentation allows the seal pattern to be simple and easy to manufacture while maintaining reliable sealing through its optimized geometric shape.
Solution Approach 2:
The invention changes the geometric parameters of the seal pattern to optimize its sealing function. By carefully designing the seal pattern's shape and dimensions, it can provide reliable sealing with a single pattern, simplifying the manufacturing process while maintaining sealing reliability through optimized geometric parameters.
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 approach minimizes the non-display area, increasing the effective screen size by reducing the junction region and improving adhesion between panels, thus enhancing the display device's overall performance.
Implementation Method 1
enhancing adhesion with a thermoplastic material like epoxy
Implementation Method 2
ensuring strong contact through etching and curing processes
Implementation Method 3
ensuring strong contact through etching and curing processes
Data Source
AI summary
A tiling mode display device is disclosed. The display device includes a first substrate having at least two lower substrates connected to each other at a boundary region between the lower substrates using a first adhesion member; a first seal pattern formed at peripheries of the lower substrates, and a second seal pattern formed at the boundary region between the lower substrates; and a second substrate attached to the first substrate by the first and second seal patterns.