Laminating Device Resin Thickness Control
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Solution Overview
Problem
Existing laminating methods for display panels, such as OLED displays, face challenges in maintaining consistent resin thickness between the display panel and the window, leading to potential issues with image quality and flatness.
Innovation Solution
A laminating device and method that utilize a first plate with a displacement sensor to measure the display panel thickness, a second plate with displacement sensors to measure the window and resin thickness, and a pressurizer to ensure uniform resin application and pressurization, allowing for precise control of resin thickness and application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional laminating methods are used, then the lamination process can be completed, but the resin thickness between the display panel and window cannot be maintained consistently
Solution Approach 1:
The patent replaces conventional mechanical measurement methods with optical measurement technology. Displacement sensors emit light and detect reflected light to precisely measure the thickness of the display panel, window, and resin layers without physical contact, enabling accurate thickness control throughout the laminating process.
Solution Approach 2:
The patent implements a feedback control system where displacement sensors continuously measure the thickness of components and resin during lamination. This measurement data is fed back to the pressurizer, which automatically adjusts the pressing force to maintain consistent resin thickness, ensuring manufacturing precision.
2Manufacturing precision
If multiple sensors and pressurizers are added to control resin thickness, then manufacturing precision improves, but device complexity increases
Solution Approach 1:
The pressurizer is designed to perform multiple functions: it applies pressure for lamination, adjusts pressure based on feedback from displacement sensors, and maintains consistent resin thickness across the entire window surface. This multi-functionality reduces the need for separate dedicated components for each function.
Solution Approach 2:
The patent combines the measurement function (displacement sensors) and control function (pressurizer) into an integrated system. The sensors and pressurizer work together as a unified feedback control system, where sensor measurements directly guide pressurizer adjustments, eliminating the need for separate independent control mechanisms.
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 approach enables easy and precise lamination of the window on the display panel with consistent resin thickness across the entire surface, enhancing image quality by maintaining uniform resin layers and reducing lamination time.
Implementation Method 1
a first displacement sensor provided in the first plate main body, irradiating light to the display panel, and measuring a thickness of the display panel by using light reflected by the display panel
Implementation Method 2
a second displacement sensor provided in the second plate main body, irradiating light to the window, and measuring a thickness of the window by using light reflected by the window
Implementation Method 3
The second displacement sensor measures the thickness of the resin by using the light reflected by the resin applied to the window
Data Source
AI summary
A laminating device for laminating a window on a display panel for displaying an image includes: a first plate on which the display panel is provided; a second plate on which the window is provided and which is adjacent to the first plate; an applier provided on the second plate and applying a resin on the window; a folder for connecting the first plate and the second plate, for folding to allow the second plate to face the first plate, and for disposing the window on the display panel with the resin therebetween; and a pressurizer for pressurizing the second plate in a direction of the first plate.