Protecting Cover Shields Driving Circuit Module During Laser Release
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Solution Overview
Problem
The manufacturing yield of flexible display panels is degraded due to the inherent characteristics of energy distribution and interference of laser beams during the laser releasing process, which can damage the driving circuit module.
Innovation Solution
A carrier with a carrying plate and a protecting cover is used to shield the driving circuit module from laser irradiation, preventing damage during the laser releasing process by positioning the module in a receiving space between the carrying plate and the protecting cover, which is made of a reflective material such as metal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a laser releasing process is used to separate the flexible display panel from the glass substrate, then the manufacturing process can be similar to traditional display panels, but the laser beam may damage the driving circuit module due to energy distribution, interference and diffraction
Solution Approach 1:
A metal protecting cover is introduced as an intermediary element between the laser beam and the driving circuit module. The protecting cover is positioned at the edge of the carrying area and extends into the carrying area to physically block and shield the driving circuit module from direct laser irradiation, thereby preventing damage while maintaining the laser releasing process
Solution Approach 2:
The protecting cover is pre-positioned on the carrying plate before the laser releasing process begins. This preliminary arrangement ensures that the driving circuit module is already shielded when the laser beam is applied, preventing potential damage from the outset
2Manufacturing precision
If the optical path of the laser beam is accurately preset to avoid damage, then the driving circuit module may be protected, but the manufacturing yield is still degraded due to inherent laser characteristics
Solution Approach 1:
The metal protecting cover serves as a physical intermediary that blocks the laser beam from reaching the driving circuit module. This approach does not rely on precise optical path presetting but instead provides a robust physical barrier, thereby improving manufacturing yield by eliminating damage risks associated with laser characteristics
Solution Approach 2:
The protecting cover is a simple, inexpensive metal component that can be easily manufactured and replaced. It serves as a disposable or reusable protective element that absorbs the harmful effects of the laser beam, protecting the valuable driving circuit module without requiring complex precision control
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 method effectively improves the manufacturing yield of flexible display panels by protecting the driving circuit module from laser damage, even with less accurate optical path presetting, and allows for batch processing.
Implementation Method 1
The protecting cover is made of a reflective material such as metal
Data Source
AI summary
A carrier applicable to a laser releasing process and for carrying at least a flexible display panel is provided. The flexible display panel is formed on a transparent substrate and includes a display main body and a driving circuit module connected to an edge of the display main body. The carrier includes a carrying plate having at least a carrying area for carrying the flexible display panel and a protecting cover disposed on the carrying plate and located at an edge of the carrying area. A receiving space is formed between the protecting cover and the carrying plate for receiving the driving circuit module. The protecting cover is for shielding the driving circuit module to prevent the driving circuit module from being irradiated by a laser beam in the laser releasing process. A method for manufacturing flexible display panel also is provided.