Asymmetric Bending Design for Narrow Side Frame Width
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Solution Overview
Problem
Conventional flexible display panel manufacturing methods are limited in reducing the width of the side frame, as symmetric 180-degree bending designs fail to accommodate devices requiring narrower side frames.
Innovation Solution
An asymmetric and non-180-degree bending design is implemented for the display device, where the second non-bending portion is bent along a curve with increasing bending radii towards the first non-bending portion, accompanied by a composite heat dissipation material and a stiffener, and a filler that protrudes to adjust the bending radiuses, allowing for a narrower side frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If symmetric 180-degree bending design is used, then force balance is achieved, but side frame width cannot be reduced further
Solution Approach 1:
The patent applies asymmetry by changing from symmetric 180-degree bending to asymmetric non-180-degree bending. The bending portion is bent at an angle different from 180 degrees, and the bending radius varies along the bending portion, creating an asymmetric structure that enables narrower side frames while maintaining force balance through the specific asymmetric configuration
Solution Approach 2:
The patent changes the bending parameters from fixed 180-degree symmetric bending to variable non-180-degree asymmetric bending. The bending radius is changed from a constant value to a variable value that changes along the bending portion, allowing optimization of both force distribution and side frame width
2Length of stationary object
If asymmetric non-180 degree bending is implemented, then side frame width is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-forming the bending portion with a specific asymmetric shape and varying bending radius during the manufacturing process. The filler is also positioned in advance to push against the bending portion and maintain the desired asymmetric configuration, simplifying the overall manufacturing process despite the complex final shape
3Manufacturing precision
If filler is added to push against bending portion, then bending radius is controlled, but device structure becomes more complex
Solution Approach 1:
The patent uses a filler as an intermediary element that is positioned between the bending portion and the internal structure. The filler pushes against the bending portion to control and maintain the asymmetric bending radius, acting as a mediator that enables precise radius control without requiring complex active control mechanisms
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 design effectively reduces the side frame width, enabling full-screen displays in devices with narrower borders by distributing force asymmetrically and enhancing structural strength and heat dissipation.
Implementation Method 1
a heat dissipation material, fixed on a bottom surface of the first back plate
Implementation Method 2
the filler protrudes from an edge of the first back plate and pushes against the bending portion
Data Source
AI summary
A display device and a method for manufacturing a display device is provided. The display device includes a display panel. The display panel includes a bending portion, a first non-bending portion and a second non-bending portion, positioned at two opposite sides of the bending portion. The second non-bending portion is positioned by bending the bending portion in an asymmetric and non-180 degree way toward a back side of the first non-bending portion. The present disclosure solves the issues of the conventional art, which cannot narrow down the width of the side frame.