Display Panel Bending With Constant Circuit Board Tension
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Solution Overview
Problem
During the manufacturing of display devices, display panels often fail to achieve a preset radius of curvature when bent, leading to potential damage due to manufacturing errors, material properties, or environmental conditions.
Innovation Solution
An apparatus and method involving a stage, accommodation portion, interval adjustment portion, and rotation driving portion to maintain constant tension in the display circuit board while bending, using components like cylinders, linear motors, and moving blocks to control the bending process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the display panel is bent without applying constant tension to the display circuit board, then the bending process is simpler, but the display panel cannot achieve the preset radius of curvature and may be damaged
Solution Approach 1:
The display circuit board is stretched to a predetermined length before the bending process begins. This preliminary action ensures that when the board is bent, it maintains the correct tension and achieves the desired radius of curvature without damage, resolving the contradiction between manufacturing precision and device complexity.
Solution Approach 2:
The apparatus dynamically adjusts the interval between the stage and accommodation portion during the bending process, changing the physical parameters of the system to maintain constant tension on the display circuit board. This parameter change enables precise control of the bending radius while preventing damage.
2Reliability
If the display panel is bent without maintaining constant tension on the display circuit board, then the apparatus structure is simpler, but the display panel may be damaged due to incorrect curvature
Solution Approach 1:
The apparatus uses the interval adjustment portion to continuously monitor and adjust the distance between the stage and accommodation portion, maintaining constant tension on the display circuit board during bending. This feedback mechanism ensures the display panel achieves the correct curvature without damage while providing reliable control.
Solution Approach 2:
By pre-stretching the display circuit board to a predetermined length before bending, the system establishes the correct tension state in advance. This preliminary action prevents damage during the bending process and ensures the display panel achieves the desired curvature reliably.
3Manufacturing precision
If the display circuit board is not stretched to a predetermined length before bending, then the manufacturing process is faster, but the display panel cannot achieve the desired curvature and may be damaged
Solution Approach 1:
The display circuit board is stretched to a predetermined length before the bending operation. This preliminary action, while adding some time to the process, ensures that the board maintains correct tension during bending, achieving the desired curvature accuracy and preventing damage.
Solution Approach 2:
The apparatus adjusts the interval between stage and accommodation portion to maintain optimal tension on the display circuit board during bending. This parameter change enables the system to achieve precise curvature while minimizing the time required for the stretching process.
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
Prevents damage to the display panel and circuit board by ensuring they are bent to a desired curvature, maintaining tension and alignment throughout the process.
Implementation Method 1
the interval adjustment portion includes a cylinder or linear motor that is connected to the accommodation portion and linearly moves the accommodation portion
Implementation Method 2
the rotation driving portion rotates the accommodation portion
Implementation Method 3
forming an adhesive member on the display panel
Data Source
AI summary
An apparatus for manufacturing a display device includes a stage on which a display panel is placed, an accommodation portion on which a display circuit board is placed, where the display circuit board is connected to the display panel, an interval adjustment portion that adjusts an interval between the stage and the accommodation portion, and a rotation driving portion that rotates the accommodation portion. When the interval adjustment portion applies a force to the display circuit board, the rotation driving portion rotates the accommodation portion.