Screen protector
Encyclopedia
A screen protector is used to protect the LCD screens of digital, electronic devices. The personal digital assistant
(PDA) is, perhaps, the most commonly used gadget for which screen protectors are used since PDAs are operated via a stylus
. If not used carefully, the tip of the stylus can potentially mar or scratch the sensitive LCD screen surface, and so screen protectors were brought to market.
The "first generation" of screen protectors were made from very thin films based on the concept that an extra layer between the two surfaces (screen and stylus) would provide the needed protection to prolong the life of the device. These screen protectors came (and still come) in packs of 10 to 20 protectors and are hand-cut by the end consumer to fit the specific device. Such screen protectors, while offering extra protection, did not completely fill the need in the marketplace. They peeled up easily and they scratched almost as easily as the screens, causing the protector to be replaced often.
The newest generation of screen protectors are made from a much more durable film and are designed to be a more permanent part of the gadget which they protect. The material is a urethane
-based film which is a little thicker than traditional screen protectors (.008 inches compared to .005 or .003), but the film is hardly noticeable once installed. The film originated when the U.S. military was looking for a way to protect the leading edges of their military helicopter
blades from abrasive airborne particles (sand) while traveling at hundreds of miles per hour. The negative is that it is hard to remove and leaves a sticky residue. It is also made in small sizes, not recommended for bigger than four inch diagonal screens. Since the film is clear, there are problems with UV rays emanating from the display to the eyes and bounce back from the sun. It also does not provide protection from glare and hard to read outdoors.
For less permanent solutions there are screen protectors that are non-adhesive and work by sitting in the gap between the LCD screen and the case of the device. The film can be removed, cleaned and reinstalled without any problem. This new generation of film is available with anti-glare coating to help users see the screen in daylight. The non-adhesive screen protector can cover LCD screens from one inch to 50 inch diagonal and is used on digital cameras to large HDTVs.
The anti-reflective screen protector film has been introduced in 2008 and works by canceling out glare and blocking the reflection of UV rays. This allows users to see the display clearer, even outdoors and while wearing polarized sunglasses. The film has a tacky rubberized backing which adheres to the display, but can easily be removed and reinstalled when necessary. The film comes in sizes up to 50 inch diagonal and can be installed without need for water or soapy solutions. The film has been approved for use by the military, boaters, laptop manufacturers, law enforcement agencies and is recommended for everyone who likes to use their device outdoors. The film can stay in place for over 1 year and retains its glare canceling benefit.
Despite these undoubted advances the earlier technology retains a cost advantage. First-generation screen protectors are generally less expensive and can be purchased in packs, enabling the consumer to fit them to different devices themselves. Second-generation screen protectors on the other hand, although more expensive, offer better long-term protection and are generally made specifically for each individual device, providing the user with a better fitting protector.
And for the usage of the cell phone screen, there are mainly 7 kinds of screen protector: Privacy Screen Protector, Mirror Screen Protector,Matte Screen Protector, Ultra-Clear Screen Protector,Grid Screen Protector,Diamond Screen Protector and 3D Screen Protector
Personal digital assistant
A personal digital assistant , also known as a palmtop computer, or personal data assistant, is a mobile device that functions as a personal information manager. Current PDAs often have the ability to connect to the Internet...
(PDA) is, perhaps, the most commonly used gadget for which screen protectors are used since PDAs are operated via a stylus
Stylus (computing)
In computing, a stylus is a small pen-shaped instrument that is used to input commands to a computer screen, mobile device or graphics tablet...
. If not used carefully, the tip of the stylus can potentially mar or scratch the sensitive LCD screen surface, and so screen protectors were brought to market.
The "first generation" of screen protectors were made from very thin films based on the concept that an extra layer between the two surfaces (screen and stylus) would provide the needed protection to prolong the life of the device. These screen protectors came (and still come) in packs of 10 to 20 protectors and are hand-cut by the end consumer to fit the specific device. Such screen protectors, while offering extra protection, did not completely fill the need in the marketplace. They peeled up easily and they scratched almost as easily as the screens, causing the protector to be replaced often.
The newest generation of screen protectors are made from a much more durable film and are designed to be a more permanent part of the gadget which they protect. The material is a urethane
Polyurethane
A polyurethane is any polymer composed of a chain of organic units joined by carbamate links. Polyurethane polymers are formed through step-growth polymerization, by reacting a monomer with another monomer in the presence of a catalyst.Polyurethanes are...
-based film which is a little thicker than traditional screen protectors (.008 inches compared to .005 or .003), but the film is hardly noticeable once installed. The film originated when the U.S. military was looking for a way to protect the leading edges of their military helicopter
Helicopter
A helicopter is a type of rotorcraft in which lift and thrust are supplied by one or more engine-driven rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forwards, backwards, and laterally...
blades from abrasive airborne particles (sand) while traveling at hundreds of miles per hour. The negative is that it is hard to remove and leaves a sticky residue. It is also made in small sizes, not recommended for bigger than four inch diagonal screens. Since the film is clear, there are problems with UV rays emanating from the display to the eyes and bounce back from the sun. It also does not provide protection from glare and hard to read outdoors.
For less permanent solutions there are screen protectors that are non-adhesive and work by sitting in the gap between the LCD screen and the case of the device. The film can be removed, cleaned and reinstalled without any problem. This new generation of film is available with anti-glare coating to help users see the screen in daylight. The non-adhesive screen protector can cover LCD screens from one inch to 50 inch diagonal and is used on digital cameras to large HDTVs.
The anti-reflective screen protector film has been introduced in 2008 and works by canceling out glare and blocking the reflection of UV rays. This allows users to see the display clearer, even outdoors and while wearing polarized sunglasses. The film has a tacky rubberized backing which adheres to the display, but can easily be removed and reinstalled when necessary. The film comes in sizes up to 50 inch diagonal and can be installed without need for water or soapy solutions. The film has been approved for use by the military, boaters, laptop manufacturers, law enforcement agencies and is recommended for everyone who likes to use their device outdoors. The film can stay in place for over 1 year and retains its glare canceling benefit.
Despite these undoubted advances the earlier technology retains a cost advantage. First-generation screen protectors are generally less expensive and can be purchased in packs, enabling the consumer to fit them to different devices themselves. Second-generation screen protectors on the other hand, although more expensive, offer better long-term protection and are generally made specifically for each individual device, providing the user with a better fitting protector.
And for the usage of the cell phone screen, there are mainly 7 kinds of screen protector: Privacy Screen Protector, Mirror Screen Protector,Matte Screen Protector, Ultra-Clear Screen Protector,Grid Screen Protector,Diamond Screen Protector and 3D Screen Protector