Display Panel Bending Support to Prevent Wiring Disconnection
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Solution Overview
Problem
The production yield of flexible display devices is hindered by the risk of wiring line disconnection during the bending process, as existing methods lack effective support mechanisms to prevent damage and disconnection of flexible wiring boards and display panels.
Innovation Solution
A processing device comprising a stage, a support member with a movable support block, and a vacuum device that holds and bends the display panel, crimps opposing regions to secure the bend area, preventing disconnection of wiring lines by using a vacuum device to adsorb and rotate the panel, and crimping the protective members to maintain curvature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the display panel is bent during the manufacturing process, then the flexible display device achieves its desired curved shape, but the wiring lines may disconnect and the panel may be damaged
Solution Approach 1:
The patent applies preliminary action by supporting the end portion area and flexible wiring board with a movable support block before the bending operation. This support is established in advance to prevent wiring line disconnection during the subsequent rotation and bending process, thereby resolving the contradiction between achieving curvature and maintaining wiring integrity.
Solution Approach 2:
The patent implements beforehand cushioning by using the movable support block to provide mechanical support and protection to the flexible wiring board and end portion area before the bending process begins. This cushioning effect prevents damage to wiring lines during the curvature formation process.
2Device complexity
If the end portion area and flexible wiring board are not supported during bending, then the processing device structure is simpler, but the wiring lines disconnect and production yield decreases
Solution Approach 1:
The patent applies dynamics by using a movable support block that can move in the radial direction of the rotating vacuum device. This dynamic support mechanism provides necessary structural complexity only when needed during the bending process, while maintaining relative simplicity during other operations, thus resolving the contradiction between device complexity and production yield.
3Device complexity
If the support block remains in place during rotation, then the support mechanism is simpler, but the support block interferes with the bending process and damages the panel
Solution Approach 1:
The movable support block moves in the radial direction under control to clear from or contact the display panel during different stages of the bending process. This dynamic positioning resolves the contradiction between maintaining a simple support mechanism and achieving high manufacturing precision in the bend area.
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 solution enhances the production yield by preventing wiring line disconnection and maintaining the desired curvature of the display panel, ensuring the integrity and functionality of the flexible display devices.
Implementation Method 1
raising the vacuum device to cause the end portion area of the display panel and the flexible wiring board to be adsorbed to the main body of the vacuum device
Data Source
AI summary
According to one embodiment, a processing device includes a stage, a support member including a movable support block, and a vacuum device including a main body and a block, and the processing moves the support block in a first direction to support an end portion region of a display panel and a flexible wiring board disposed outside the stage, causes the end portion area of the display panel and the flexible wiring board to be adsorbed to the main body of the vacuum device, and rotates the main body of the vacuum device and the block of the vacuum device by 180° to bend the display panel in a bend area of the end portion region.