Functional Film Adhesive Lamination via Silicone Rubber Mediator
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Solution Overview
Problem
Existing display-screen functional films face issues with property changes and curling when exposed to heat or energy rays during the crosslinking process, leading to productivity problems and potential damage to the expensive functional films.
Innovation Solution
A layered structure is formed with an adhesive layer, a base film, and a silicone rubber layer laminated on one surface of a functional film, using a silicone rubber containing an addition-type organopolysiloxane with a platinum catalyst, which allows for the production of display-screen functional films without exposing them to heat or energy rays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the functional film is exposed to heat or energy rays for crosslinking of the rubber film, then the rubber film can be crosslinked to provide self-adhesive function, but the functional film undergoes changes in properties or curling which damages the expensive functional film
Solution Approach 1:
A base film is introduced as an intermediary layer between the functional film and the rubber film. The base film serves as a sacrificial carrier that can withstand heat and energy ray exposure without damaging the functional film. The rubber film is crosslinked on the base film, and the entire assembly is then separated, leaving the crosslinked rubber film with self-adhesive function attached to the functional film without having been directly exposed to harmful heat or energy rays.
Solution Approach 2:
The structure is segmented into three distinct layers: the functional film, the base film, and the rubber film. This segmentation allows each layer to perform its specific function independently - the functional film provides display protection, the base film provides a heat-resistant substrate for crosslinking, and the rubber film provides self-adhesive bonding. This separation protects the functional film from direct exposure to damaging conditions.
2Ease of manufacture
If the functional film is exposed to heat or energy rays during crosslinking, then the rubber film achieves crosslinking, but productivity decreases due to damage or property changes in the functional film
Solution Approach 1:
The base film acts as a mediator that enables the crosslinking process to proceed without compromising the functional film. By providing a heat-resistant substrate, the base film allows standard crosslinking procedures to be used effectively, maintaining ease of manufacture while preventing productivity losses from film damage.
Solution Approach 2:
The invention changes the physical parameters of the system by introducing a base film with different thermal and radiation resistance properties. This parameter change allows the crosslinking process to be performed at standard temperatures and energy levels without damaging the functional film, thereby maintaining high production efficiency.
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 prevents damage to the functional films during production, maintaining their properties and improving productivity by avoiding exposure to heat or energy rays, while providing scratch-resistant, anti-reflection, anti-static, and anti-glare functions.
Implementation Method 1
an adhesive layer, a base film B and a silicone rubber layer are laminated in order on one surface of a functional film
Implementation Method 2
a silicone rubber containing an addition-type organopolysiloxane with a platinum catalyst
Data Source
AI summary
Display-screen functional film product containing a laminate where an adhesive layer, a base film B and a silicone rubber layer are laminated in order on one surface of the functional film including a base film A and one or more functional layers laminated on a surface of the base film A. The product of the present invention does not undergo functional damage caused by heat or energy rays during production thereof, and thus is suitable for use in a display screen of a display device such as a CRT display, a liquid crystal display, or a plasma display.