Optical Film Lamination System with Perpendicular Orientation Control
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Solution Overview
Problem
The existing manufacturing systems for display units require additional apparatuses and complex processes to attach optical films on both surfaces of a panel, leading to reduced spatial efficiency and productivity, especially when polarizing films with perpendicular absorption axes are involved.
Innovation Solution
A system comprising a panel transfer unit, first and second laminating units, and a reverse unit that allows for parallel and perpendicular lamination of optical films on a panel's surfaces, eliminating the need for panel rotation and optimizing spatial utilization by installing units in a linear configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a panel rotation apparatus is added to attach polarizing films with perpendicular absorption axes, then the correct orientation of optical films is achieved, but the process line becomes complicated and spatial efficiency is reduced
Solution Approach 1:
Instead of rotating the panel to achieve perpendicular orientation of optical films on both surfaces, the invention inverts the approach by keeping the panel in a fixed horizontal position and rotating the optical films themselves during the lamination process. This is accomplished by equipping the lamination apparatus with a rotation mechanism that can rotate the optical film 90 degrees between lamination steps, thereby achieving the correct perpendicular orientation without adding complex panel rotation apparatus to the production line.
2Manufacturing precision
If a panel rotation apparatus is added to attach polarizing films with perpendicular absorption axes, then the correct orientation of optical films is achieved, but productivity is reduced
Solution Approach 1:
The invention applies preliminary action by pre-positioning and pre-aligning the optical film on the lamination apparatus before the lamination process begins. The rotation mechanism is pre-configured to rotate the optical film to the correct perpendicular orientation during the lamination sequence, eliminating the need for separate panel rotation steps and additional apparatus that would slow down production.
3Reliability
If optical films are laminated on both surfaces of a panel, then display device performance is improved, but the process becomes more complex and time-consuming
Solution Approach 1:
The invention merges the lamination processes for both surfaces of the panel into a single integrated apparatus. The lamination device can simultaneously or sequentially laminate optical films on both the front and back surfaces of the panel without requiring separate production lines or multiple handling steps. This integration reduces processing time while maintaining the performance benefits of having optical films on both surfaces.
Data Source
AI summary
A system for laminating an optical film according to an exemplary embodiment of the present disclosure includes a panel transfer unit to transfer a panel, a first laminating unit installed at an area where a transfer line of the panel passes, to laminate an optical film on a first surface of the panel along a first direction parallel to a transfer direction of the panel, a reverse unit to reverse the panel having the optical film laminated on the first surface, and a second laminating unit installed at an area where the transfer line of the panel passes, to laminate an optical film on a second surface of the panel reversed by the reverse unit along a direction perpendicular to the first direction. According to the present disclosure, in the process of attaching the optical film onto both sides of the panel, process efficiency may be increased.