LCD Panel Binding Terminal Layout for Narrow-Bezel Bonding
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Solution Overview
Problem
Existing liquid crystal display devices face low yield due to small contact areas between binding terminals and side wirings, leading to open circuits and connection failures.
Innovation Solution
A liquid crystal display panel design featuring binding terminals that extend beyond a sealant with blocking layers positioned between adjacent terminals, increasing contact areas and preventing short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If binding terminals are made narrow to reduce frame size, then frame width is reduced, but contact area between binding terminals and side wirings decreases leading to open circuits
Solution Approach 1:
The patent extends binding terminals in the vertical direction beyond the sealant surface, transforming a 2D contact problem into a 3D contact solution. This allows side wirings to contact binding terminals from multiple positions (side surface and top surface), increasing contact area without expanding horizontal frame width.
Solution Approach 2:
The patent divides the contact interface into multiple segments: side surface contact and top surface contact. By segmenting the contact areas, the total contact area increases while the binding terminal width remains narrow, resolving the contradiction between small frame size and sufficient contact area.
2Area of stationary object
If binding terminals are extended beyond sealant to increase contact area, then contact area increases, but risk of short circuits between adjacent terminals increases
Solution Approach 1:
The patent introduces blocking layers as intermediary insulating structures between adjacent binding terminals. These blocking layers prevent direct contact between terminals while allowing side wirings to maintain electrical contact with terminals, thus increasing contact area without creating short circuit paths.
Solution Approach 2:
The patent applies different properties to different parts of the binding terminal structure: the terminal portions have conductive properties for electrical contact, while the blocking layer portions have insulating properties to prevent short circuits. This local differentiation resolves the contradiction between conductivity and insulation requirements.
Data Source
AI summary
The embodiments of the present disclosure provide a liquid crystal display panel and a liquid crystal display device. In the liquid crystal display panel, at least portions of the binding terminals protrude from the sealant so that top sides of the binding terminals can be exposed, thereby contact areas between the binding terminals and the side wirings are increased. Moreover, blocking layers are disposed between portions, protruding from the sealant, of adjacent binding terminals, so that short circuits between adjacent binding terminals are avoided, and the yield of the display panel is improved.