Which industries require the addition of a 3A cover plate for LCD screen applica
Date:2025-10-24
Which industries require the addition of a 3A cover plate for LCD screen applications?
We all know that the 3A features of LCD screens typically refer to anti-glare, anti-fingerprint, and anti-reflection, which are crucial in specific environments. Adding a "3A cover plate" to LCD screens is a common functional treatment, primarily aimed at enhancing screen visibility, durability, and user experience in particular conditions.
First, let's clarify that "3A" typically refers to three types of optical coating or surface treatment processes:
Anti glare: By chemical etching or coating, smooth specular reflection is transformed into diffuse reflection, thereby weakening the interference spot of ambient light on the screen and making the screen content clearer.
Anti fingerprint: an oil and water repellent coating that makes the screen surface less prone to fingerprints and oil stains, and even if it is contaminated, it is easier to wipe clean.
Anti reflection: By coating multiple layers of optical films, the reflectivity of the screen surface to ambient light is reduced, fundamentally improving the contrast and readability of the screen.
Overall, products that require the installation of 3A cover plates typically have one or more of the following characteristics:
Used in strong or complex lighting conditions
Frequent touch operation is required
High requirements for cleanliness, hygiene, and visual effects
The usage environment is harsh and requires screen protection
The main product categories for application include:
1. Industrial control and automation equipment
This is the most urgent and widely used field for 3A cover plates.
Industrial touch screen/human-machine interface: The lighting in the factory workshop is complex, and there may be direct lights or window reflections. AG and AR processing can ensure that operators can see the equipment status and parameters clearly from any angle. AF coating facilitates workers to operate and clean while wearing gloves or with oily hands.
Medical equipment display screens: such as monitors, ultrasound diagnostic equipment, anesthesia machines, etc. Doctors need to read vital sign data clearly under high brightness surgical lights, and AG/AR processing is crucial. AF coating meets the requirements of hygiene and high-frequency disinfection in medical environments.
Outdoor portable devices: such as reinforced tablets, handheld terminals, surveying equipment, etc. Directly exposed to sunlight, anti glare and anti reflection are essential, otherwise the screen will be completely white and nothing can be seen.
2. Public and commercial display equipment
This type of device has a complex user base, high usage frequency, and high requirements for durability and visibility.
Self service terminals: such as bank ATMs, self-service ticket machines, self-service ordering machines, and self-service check-in equipment. They are usually placed in brightly lit indoor or semi outdoor environments, and AG/AR processing ensures that users of different heights and perspectives can see the screen clearly. AF coating can effectively resist countless users' fingerprint residues and keep the screen clean.
Information inquiry all-in-one machine: guide machines for museums, shopping malls, and hotels.
Queuing and calling system: banks, hospitals, and other places.
3. High end or special-purpose consumer electronics
High end monitor: A monitor designed specifically for professional users in photography, design, video editing, etc., often equipped with AG coating to reduce the interference of ambient light on color accuracy and alleviate visual fatigue from long-term work.
Car display screens: central control screen, dashboard, etc. The lighting inside the car changes dramatically, from direct sunlight to tunnel darkness. AG/AR processing can significantly improve the convenience and safety of drivers in reading information under various lighting conditions. The AF coating facilitates the cleaning of fingerprints left by the passenger when eating.
Navigation/aviation electronic equipment: marine radar GPS， Aircraft cockpit display screens, etc., face strong sunlight and salt spray environments, and 3A processing is almost standard.
4. Financial and security equipment
POS card reader: Merchants and customers frequently touch it, requiring AF function.
Security monitoring center display screen: Monitoring personnel need to stare at multiple screens for a long time, and AG/AR processing can effectively reduce visual fatigue caused by reflection.
Summary: When should we consider adding 3A cover plates to LCD screen products?
You can refer to the following decision list:
Decision factors | Strongly recommend using 3A cover plate | Can be considered or not needed |
Using ambient lighting | Outdoor, strong indoor (such as workshops, hospitals), with direct sunlight | Indoor, office, and home environments with controllable lighting |
Touch frequency | High frequency, public use, user not fixed | Occasional touch, personal use |
Hygiene requirements | Medical, catering, public inquiries, etc | Personal entertainment, general office |
Product positioning | Industrial grade, professional grade, high-end commercial grade | Consumer grade, low-cost, price sensitive |
Display the importance of content | Key parameters, vital signs, financial transactions, security monitoring | Entertainment information, general content browsing |
Simply put, if your product is not meant to be comfortably stored in an office, but rather faces challenges such as complex lighting, frequent touch, or harsh environments, adding a 3A cover to the LCD screen would be a very worthwhile investment in improving product reliability and user experience.
