Flexible Display Lower Bezel Linear Interface Layout
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Solution Overview
Problem
Existing flexible display panel designs with a chip on film (COF) structure face limitations in reducing the width of the lower bezel, leading to increased production costs and reduced panel utilization due to the need for a T-shaped structure and longer bezels.
Innovation Solution
A flexible display panel with a lower bezel structure featuring an input end, an output end, and a connecting portion made of flexible material, where the interface areas are arranged in a straight line, including COF and FPC interfaces, allowing for reduced bezel length and increased substrate utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the lower bezel uses a T-shaped structure to meet the curvature requirements, then the curvature of the left and right sides is satisfied, but the width of the lower bezel is narrowed and the structure becomes complex
Solution Approach 1:
The lower bezel structure is segmented into distinct functional areas: an input end with multiple interface areas (COF interface area, FPC interface area), a connecting portion, and an output end. This segmentation allows each area to be optimized independently for its specific function, simplifying the overall design while meeting curvature requirements.
Solution Approach 2:
The interface areas are arranged in a straight line along the horizontal direction (parallel to the connecting portion) rather than vertically stacked. This dimensional rearrangement reduces the vertical height requirement and simplifies the lower bezel structure while still accommodating all necessary interfaces.
2Adaptability or versatility
If the COF pin and FPC pin are placed at the same time in a T-shaped structure, then both interfaces are integrated, but the panel screen is limited and product variety is greatly limited
Solution Approach 1:
The input end is segmented into separate interface areas for COF and FPC connections. This segmentation allows different interface types to be accommodated in a linear arrangement rather than requiring a complex T-shaped structure, thereby maintaining panel screen flexibility and product variety while achieving interface integration.
Solution Approach 2:
The input end structure serves multiple functions: it accommodates both COF interface (with IC chip and alignment mark) and FPC interface in a unified linear arrangement. This multi-functional design eliminates the need for separate T-shaped structures for different interface types, reducing complexity while maintaining versatility.
3Length of moving object
If the IC and FPC are arranged vertically with narrow IC width, then the width of the lower bezel is reduced, but the length of the lower bezel increases and panel utilization decreases
Solution Approach 1:
The interface areas are rearranged from a vertical stacked layout to a horizontal linear layout along the connecting portion. This dimensional change reduces the vertical height (width of lower bezel) while the horizontal arrangement can be optimized to minimize the length, thereby improving panel utilization without increasing bezel width.
Solution Approach 2:
The arrangement parameters of the interface areas are optimized by changing from vertical stacking to horizontal linear arrangement. This parameter change allows the lower bezel width to be reduced while the length is controlled through proper positioning of the input end and connecting portion, thus improving overall panel utilization.
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 solution reduces production costs, minimizes bezel length, and enhances panel stability by using a flexible connecting portion that can bend without damaging the circuit, improving the overall design efficiency and cost-effectiveness.
Implementation Method 1
the connecting portion is made of a flexible material
Data Source
AI summary
The present disclosure provides a flexible display panel and a lower bezel structure thereof. The lower bezel structure includes a input end, a output end and a connecting portion connected between the input end and the output end, wherein the input end is used for connecting with a PCB of the flexible display panel, the output end is used for connecting with the display screen of the flexible display panel, the input end includes a plurality of interface areas, the plurality of interface areas are arranged in a straight line along a direction parallel to the connecting portion, and the plurality of interface areas include a COF interface area. By adopting the COF structure, the production cost of a single panel can be reduced, the length of the entire lower frame can be reduced, the utilization of the production substrate can be increased, and the production cost can be reduced.