Middle Frame Sealant Management for Narrow Border Displays
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Solution Overview
Problem
The narrow middle frame of display devices poses a challenge in sealant lamination quality due to delamination and sealant flow into the display area, affecting the reliability and yield of the lamination process.
Innovation Solution
A middle frame design featuring a lamination surface with a drainage trough, a diversion groove, and a sealant storage tank, where the sealant flows from the lamination surface into the drainage trough and then to the storage tank, ensuring it fills the gap between the display panel and the frame without entering the display area, utilizing principles of capillary phenomenon to optimize sealant distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the middle frame width is reduced to achieve ultra-narrow border display, then the display area is increased, but sealant lamination quality deteriorates due to delamination and sealant flowing into the display area
Solution Approach 1:
The middle frame is segmented into multiple functional regions: a drainage trough disposed on the lamination surface to collect excess sealant, a diversion groove to guide sealant flow, and a sealant storage tank to store additional sealant. This segmentation allows the narrow middle frame to systematically manage sealant during lamination, preventing delamination and sealant intrusion into the display area while maintaining the ultra-narrow border design.
2Shape
If the middle frame width is reduced, then the visual appearance is improved, but the sealant distribution becomes uncontrolled affecting manufacturing precision
Solution Approach 1:
The drainage trough acts as an intermediary structure between the lamination surface and the display area. It collects excess sealant that flows during lamination, preventing it from reaching the display area. The diversion groove serves as another intermediary that guides sealant flow from the lamination surface to the drainage trough and sealant storage tank, ensuring controlled sealant distribution throughout the narrow middle frame structure.
Solution Approach 2:
The sealant storage tank stores sealant in advance, and the drainage trough is pre-positioned on the lamination surface. During lamination, these pre-prepared structures immediately begin managing sealant flow, ensuring controlled distribution from the start of the process and preventing manufacturing defects in the ultra-narrow border design.
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 configuration ensures a high degree of lamination area reliability, prevents sealant from flowing into the display area, and increases the yield of the display panel by effectively managing sealant flow and distribution.
Implementation Method 1
utilizing principles of capillary phenomenon to optimize sealant distribution
Data Source
AI summary
A middle frame and a display device are provided. The middle frame includes a lamination surface, an outside face, and an inside face. A drainage trough is disposed on the lamination surface. A diversion groove and a sealant storage tank are disposed on the outside face. A width of the drainage trough is less than a width of the diversion groove. The width of the diversion groove is less than a width of the sealant storage tank. The above-described configuration can ensure a greatest degree of lamination area, ensuring reliability of lamination, preventing sealant from flowing into a display area, and increasing yield of a display panel.