Multi-Point Pressurization for Uniform Display Member Attachment
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Solution Overview
Problem
Existing methods for attaching members to display devices often result in uneven pressure application, leading to potential damage or non-uniform attachment, especially when the display panel is bent.
Innovation Solution
A manufacturing apparatus and method that utilizes a pressurization portion with multiple force application units and detection units to uniformly attach a first and second member by adjusting forces at multiple positions to ensure even pressure distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single pressurization point is used to attach members to the display device, then the device complexity is reduced, but the pressure distribution becomes uneven causing potential damage or non-uniform attachment
Solution Approach 1:
The pressurization portion is divided into multiple force application units (first force application unit and second force application unit) that independently apply pressure to different regions of the member. This segmentation allows each unit to control pressure locally, achieving uniform overall pressure distribution while maintaining a relatively simple device structure.
Solution Approach 2:
Each force application unit is designed to apply force to a specific contact portion of the member. The first force application unit targets one contact portion while the second force application unit targets another contact portion, allowing localized pressure control to ensure uniform attachment across the entire member surface.
2Manufacturing precision
If multiple force application units are used to ensure uniform pressure distribution, then the attachment uniformity is improved, but the device complexity increases
Solution Approach 1:
The pressurization portion serves multiple functions: it applies pressure through multiple force application units, detects attachment status through integrated detection units, and controls the attachment process automatically. This multi-functionality reduces the need for separate devices, thereby limiting the increase in overall device complexity while achieving uniform pressure distribution.
Solution Approach 2:
Detection units are integrated into the pressurization portion to monitor the attachment process in real-time. The detection units provide feedback on whether the member is properly attached, allowing the force application units to adjust their pressure accordingly. This feedback mechanism ensures uniform attachment while automating the process, reducing the need for complex manual control systems.
3Productivity
If pressure is applied quickly to increase productivity, then the manufacturing speed is improved, but the non-uniform pressure distribution causes member damage or attachment failure
Solution Approach 1:
The force application units are designed to dynamically adjust their pressure output based on real-time feedback from the detection units. During the attachment process, the system can quickly apply initial pressure to maintain high productivity, then automatically adjust the pressure distribution to ensure uniform attachment and prevent damage, thereby maintaining both speed and reliability.
Data Source
AI summary
An apparatus for manufacturing a display device includes a stage to support first and second members, and a pressurization portion spaced apart from the stage and to press the first or second member. The pressurization portion includes: a contact portion facing the stage and to contact the first or second member; a first force application unit connected to the contact portion and to linearly move the contact portion; and a second force application unit connected to the contact portion and spaced apart from the first force application unit. The second force application unit linearly moves the contact portion in a portion of the contact portion that is different from the portion contacted by the first force application unit. At least one of the first and second force application units is configured to operate according to a force applied by the contact portion to one of the first and second members.