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Screen protector film

a protective film and film adhesive technology, applied in the field of screen protectors, can solve the problems of affecting the viewability of the screen, prone to being scratched, and impairing or compromising viewing quality,

Inactive Publication Date: 2013-02-21
CURIO HLDG CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a screen protector film that can be quickly and easily installed on electronic touch screen displays, such as those on laptops, tablets, and cell phones. It provides strong protection against abrasion and surface damage in high-wear and uncontrolled environments, while still maintaining optical clarity for viewing the display. The screen protector film can be easily removed, replaced, or re- installed by the user in their operating environment. It is designed to provide unobstructed viewing of the display screen it is protecting.

Problems solved by technology

In many cases, the touch screens of these electronic devices come in contact with other objects and items, and may be prone to being scratched.
There are drawbacks with the prior screen protectors.
The presence of dust or other particles on the screen surface will come between the screen protector and the touch screen surface and impair or compromise the viewing quality.
This results in an occurrence of what may be referred to as “tenting” around the dust particle, creating a bubble.
The bubbles created impair the viewability of the screen, as the bubbles may be noticeable and interfere with a user's ability to view the screen in those locations where the bubbles are present.
In addition, the presence of bubbles may hamper the ability of the screen protector to remain secured to the screen surface.
Aside from being time consuming to use and apply because the display surface must be cleaned before the film is installed, in environments where dust is present, such as, on a battlefield, in a war zone, factory, or other locations where cleaning items are not readily available or practical to use, the '015 device and method are not suitable.
The presence of dust or debris generally will interfere with the smoothing device, and, in many instances, when dust is present on the screen surface, the film is required to be removed, the screen cleaned, and the film reapplied.
In many cases, the film may be compromised and cannot be reapplied due to surface dirt becoming embedded on the film surface.
Consequently, a new sheet of film is needed when the film becomes compromised.
Even fingerprints may cause problems in applying films to a display surface.
There are drawbacks with the prior devices, and none of the prior devices has been found to be completely suitable.

Method used

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Examples

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Effect test

example 1

[0037]A screen protector of the present invention was constructed from a polycaprolactone aliphatic urethane layer and a PET layer. A self-wetting adhesive consisting of an acrylic pressure sensitive adhesive was applied to the bottom surface of a 0.002″ PET layer. A release liner was applied over the adhesive layer on the bottom surface of the PET layer. A 0.006″ polycaprolactone aliphatic urethane layer was laminated to the PET layer. A roll of the multi-layer film was formed. A screen protector was cut from the roll stock using die cutters, drag knife, tangential knife, or laser cutters to provide a screen protector having mating dimensions to cover a touch screen of a cellular telephone. Mating cutouts for a home button, a speaker, microphone, and front camera were made in the screen protector.

[0038]The screen protector was subjected to an ASTM D3330 peel adhesion test, and the peel adhesion was determined to be 0.2 oz / inch. The screen protector exhibited good self-wetting prope...

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Abstract

A multi-layer screen protector for digital display screens, such as LCD's, cell phones, tablets, laptops, and pad computer devices, that may be readily applied without the need for special tools and in dusty environments, the screen protector being designed and die-cut to match the shape of the digital display screen, including cut-outs for cameras, microphones and device buttons, where the top surface is a layer of polycaprolactone aliphatic urethane that is connected to a bottom layer made from plastic such as polystyrene, acrylic and / or polyethylene terephthalate, and a self-wetting adhesive layer provided on the bottom surface of the bottom polystyrene, acrylic and / or polyethylene terephthalate layer. The screen protector provides an optically clear view of the device and is constructed with the abrasion resistant layer being provided and supported on a plastic layer and may be removed and reinstalled.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to U.S. Provisional Patent Application Ser. No. 61 / 524,931, filed on Aug. 18, 2011, the complete contents of which are herein incorporated by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to the field of screen protectors for touch screen displays, and more particularly to a removable, repositionable protective film for a touch screen display.[0004]2. Brief Description of the Related Art[0005]Touch screens are widely used, including in portable electronic devices, such as, cellular telephones and portable computing devices, including readers and tablets, such as the popular iPad®. A factor owing to the popularity of these electronic touch screen devices is their portability. The devices are generally lightweight, or compact. As a result, users often carry and use these electronic devices when traveling or when participating in daily activities. In m...

Claims

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Application Information

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IPC IPC(8): C09J7/02B32B27/40B32B7/02B32B27/08B32B7/023C09J7/29
CPCC09J7/0296Y10T428/24967C09J2203/318C09J2425/006C09J2433/00C09J2433/006C09J2467/006C09J2475/00B32B7/02B32B7/12B32B27/08B32B27/308B32B27/40B32B2457/00C09J7/0282Y10T428/2861Y10T428/2495Y10T428/2891Y10T428/28Y10T428/2848Y10T428/1471Y10T428/266Y10T428/269C09J2201/162C09J7/25C09J7/29Y10T428/31565Y10T428/31551C09J2301/162B32B7/023
Inventor O'DONNELL, DENNIS P.
Owner CURIO HLDG CO
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