Switchable Attaching Surface for Curved Display Bonding
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Solution Overview
Problem
Curved-surface display devices face challenges in bonding flexible display panels to curved-surface cover plates due to incomplete profiling, leading to issues like wrinkles, bubbles, and circuit breakage, which affect the bonding quality and reliability.
Innovation Solution
A profiling device with a switchable attaching surface, made from shape memory materials, that transforms from a planar to a profiling state, enabling precise deformation of the flexible display panel to match the curved-surface structure, using heating, electromagnetic, or light-activated jigs to control the shape change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional profiling device is used, then the flexible display panel can be profiled, but the profiling is incomplete leading to wrinkles, bubbles, and circuit breakage
Solution Approach 1:
The attaching surface is designed to be switchable between a planar state and a profiling state, allowing dynamic transformation. This enables the device to adapt its geometry from flat to curved to match the desired display panel configuration, ensuring complete and accurate profiling without defects
Solution Approach 2:
The attaching surface changes its physical state parameters (shape, curvature) through switching between planar and profiling states. This parameter transformation allows the surface to conform to different geometries, enabling precise profiling that prevents wrinkles, bubbles, and circuit breakage during bonding
2Device complexity
If the attaching surface is fixed in planar state, then the device structure is simple, but the flexible display panel cannot be accurately deformed to match curved-surface structure
Solution Approach 1:
The attaching surface transitions from a static planar configuration to a dynamic profiling state that can be switched on demand. This dynamic capability allows the simple base structure to achieve complex curved geometries when needed, maintaining overall structural simplicity while enabling precise profiling accuracy
Solution Approach 2:
The switchable attaching surface serves multiple functions: it can operate as a simple planar surface for storage and handling, and transform into a profiling surface with curved geometry for precise shaping. This multi-functionality eliminates the need for separate devices, achieving both structural simplicity and profiling accuracy
3Ease of manufacture
If the attaching surface cannot switch between states, then the device is easier to manufacture, but the intersection regions cannot fully engage with the curved-surface cover plate
Solution Approach 1:
The switchable attaching surface enables complete engagement of intersection regions by transforming to the profiling state during bonding. This dynamic adaptation ensures full contact and engagement with the curved-surface cover plate, preventing bonding defects while remaining manufacturable through integrated design
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 ensures accurate profiling of the flexible display panel, preventing defects and enhancing the bonding yield and reliability by allowing full engagement of the intersection regions with the curved-surface cover plate.
Implementation Method 1
A profiling device with a switchable attaching surface, made from shape memory materials, that transforms from a planar to a profiling state
Implementation Method 2
using heating, electromagnetic, or light-activated jigs to control the shape change
Implementation Method 3
using heating, electromagnetic, or light-activated jigs to control the shape change
Implementation Method 4
using heating, electromagnetic, or light-activated jigs to control the shape change
Data Source
AI summary
A profiling device, a profiling method, a bonding system, a bonding method, and a display device are provided. The profiling device includes a profiling jig. The profiling jig includes an attaching surface. The attaching surface is switchable between a planar state and a profiling state, and the attaching surface is a planar surface in the case that the attaching surface is in the planar state, and the attaching surface is a profiling surface in the case that the attaching surface is in the profiling state.