Touch screen protector

• US 9,283,731 B2
• Filed: 03/15/2013
• Issued: 03/15/2016
• Est. Priority Date: 05/22/2012
• Status: Active Grant

• Current Assignee: Aevoe Corporation
• Original Assignee: Aevoe International Ltd
• Inventors: Leonhard, Michael, Lin, Jonathan, Huang, Steven
• Primary Examiner(s): Ewald, Maria Veronica
• Assistant Examiner(s): Pleszczynska, Joanna
• Application Number:
  US13/841,337
• Publication Number:
  US 20130316112A1
• Time in Patent Office: 1,096 Days
• Field of Search: 428/1.1, 428/1.3, 428/1.5, 428/40.1, 428/141, 428/143, 428/189, 428/195.1, 428/201, 428/202, 428/323, 428/343, 428/38, 428/192, 345/173, 349/56
• US Class Current: 1/1
• CPC Class Codes: B32B 2250/02 2 layers
• CPC Class Codes: B32B 2307/408 Matt, dull surface
• CPC Class Codes: B32B 2307/412 Transparent
• CPC Class Codes: B32B 2307/584 Scratch resistance
• CPC Class Codes: B32B 2457/208 Touch screens
• CPC Class Codes: B32B 2571/00 Protective equipment
• CPC Class Codes: B32B 3/08 characterised by added members at particular parts layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18
• CPC Class Codes: B32B 3/10 characterised by a discontinuous layer, i.e. formed of separate pieces of material
• CPC Class Codes: B32B 7/06 permitting easy separation
• CPC Class Codes: B32B 7/12 using interposed adhesives or interposed materials with bonding properties
• CPC Class Codes: B32B 7/14 applied in spaced arrangements, e.g. in stripes
• CPC Class Codes: C09J 2203/318 for the production of liquid crystal displays
• CPC Class Codes: C09J 2301/204 the adhesive coating being discontinuous
• CPC Class Codes: C09J 7/255 Polyesters
• CPC Class Codes: C09J 7/29 Laminated material metallised plastics C09J7/22
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 2200/1634 Integrated protective display lid, e.g. for touch-sensitive display in handheld computer
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor
• CPC Class Codes: Y10T 428/1405 Capsule or particulate matter containing [e.g., sphere, flake, microballoon, etc.]
• CPC Class Codes: Y10T 428/24322 : Composite web or sheet
• CPC Class Codes: Y10T 428/24372 : Particulate matter
• CPC Class Codes: Y10T 428/24802 : Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
• CPC Class Codes: Y10T 428/24959 : of adhesive layers
• CPC Class Codes: Y10T 428/25 : Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
• CPC Class Codes: Y10T 428/28 : Web or sheet containing structurally defined element or component and having an adhesive outermost layer
• CPC Class Codes: Y10T 428/2848 : Three or more layers

Abstract

The invention relates to a touch screen protector for a hand held electronic device having a front face that includes a touch screen portion and a non-functional band. The touch screen protector of the invention comprises a film having front and back sides, an outer perimeter that corresponds to that of the device, and a transparent window; an exposed adhesive or adhesive/spacer provided along the outer perimeter of the film surrounding the transparent window, and multiple dots arranged in a prescribed pitch and present on the back side of the film at a density which is sufficiently high to reduce interference patterns when the transparent window of the protector is pressed against the touch screen portion for operation of the electronic device.

Claims

1. A touch screen protector for a hand held electronic device having a front face that includes a touch screen portion and a non-functional band, the touch screen protector comprising:

a film having front and back sides, an outer perimeter that corresponds to that of the front face of the device, and a transparent window that corresponds in size to the touch screen portion;

an exposed adhesive or adhesive/spacer combination provided on the back side of the film along the outer perimeter of the film generally surrounding the transparent window, having a thickness sufficient to space the film near but not in contact with the touch screen portion, for removably mounting the protector upon an outer perimeter of the front face to form a space between the transparent window of the film, the adhesive or adhesive/spacer combination and the touch screen portion of the device, and

multiple dots arranged in a prescribed pitch and present on the back side of the film at a density which is sufficiently high to reduce interference patterns when the transparent window of the protector is pressed against the touch screen portion for operation of the electronic device,

wherein the dots extend from the film by a distance that is less than the thickness of the adhesive or adhesive/spacer combination, such that the dots do not contact the touch screen when the electronic device is not in use, and such that the transparent window can be pressed against the touch screen portion for operation of the electronic device while preventing direct contact of a user'"'"'s fingers with the touch screen portion and reducing visible interference patterns during use.

2. The touch screen protector of claim 1, wherein the multiple dots are each made of a transparent material and are separated from adjacent dots by a distance between 0.1 and 10 mm.

3. The touch screen protector of claim 1, wherein the film also includes micro particles adhered to the front side of the transparent window in an amount effective for providing anti-glare and anti-static effects to the window.

4. The touch screen protector of claim 1, wherein the film comprises micro-particles present on the back side of the film at a density which is sufficiently high to assist in providing an anti-static effect without adversely affecting quality of images viewed through the window.

5. The touch screen protector of claim 1, wherein the exposed adhesive or adhesive/spacer combination has a thickness of between about 0.05 and about 1 mm, and the film has a thickness of between 0.1 and 2 mm and includes an opaque band about its periphery that receives the exposed adhesive or adhesive/spacer combination.

6. The touch screen protector of claim 1, wherein the exposed adhesive or adhesive/spacer combination is present to provide coverage of at least 50% of the area of the non-functional band of the touch screen.

7. The touch screen protector of claim 1 further comprising an opaque coating of a color placed adjacent the perimeter of the protector and in line with the non-functional band of the device.

8. The touch screen protector of claim 1, which further comprises a backing member to protect the back side of the film and the exposed adhesive prior to use.

9. The touch screen protector of claim 8, wherein the backing member further includes a tab to assist in the removal of the backing member when mounting the protector on the device.

10. The touch screen protector of claim 1, which further comprises one or more alignment holes or notches that match or accommodate one or more buttons on the electronic device to facilitate mounting of the protector on the device.

11. The touch screen protector of claim 1, wherein the touch screen of the device and the film are each substantially rectangular and the touch screen is part of a telephone, reading device, music device, viewing device or navigation device.

12. The touch screen protector of claim 1, wherein the film includes at least two layers, and the transparent window is clear but includes a coating that provides a matte effect or a privacy screen feature.

13. The touch screen protector of claim 1, wherein the film is a plastic film.

14. In a hand held, touch screen electronic device having a front face that includes a touch screen portion and an outer perimeter that is non-functional, the improvement which comprises providing a touch screen protector according to one of claim 1 for attachment to the touch screen portion of the device, wherein the touch screen can be attached without causing bubble formation between the transparent window of the film and the touch screen portion of the device.

15. The touch screen protector of claim 1, wherein the exposed adhesive or adhesive/spacer combination is present to provide coverage of at least 20% of the area of the non-functional band of the touch screen.

16. A method for protecting a touch screen of a hand held electronic device having a front face that includes a touch screen portion and a non-functional outer perimeter, which method comprises:

providing a touch screen protector comprising;

a film having front and back sides, an outer perimeter that corresponds to that of the front face of the device, and a transparent window that corresponds in size to the touch screen portion;

an exposed adhesive or adhesive/spacer combination provided on the back side of the film along the outer perimeter of the film generally surrounding the transparent window, having a thickness sufficient to space the film near but not in contact with the touch screen portion, and

multiple dots arranged in a prescribed pitch and present on the back side of the film at a density which is sufficiently high to reduce interference patterns when the transparent window of the protector is pressed against the touch screen portion for operation of the electronic device,

wherein the dots extend from the film by a distance that is less than the thickness of the adhesive or adhesive/spacer combination, such that the dots do not contact the touch screen when the electronic device is not in use, and such that the transparent window can be pressed against the touch screen portion for operation of the electronic device while preventing direct contact of a user'"'"'s fingers with the touch screen portion and reducing visible interference patterns during use; and

removably mounting the touch screen protector upon the outer perimeter of the front face of the device via the exposed adhesive or adhesive/spacer combination to form a space between the transparent window of the film, the adhesive or adhesive/spacer combination and the touch screen portion of the device, wherein the touch screen is attached without causing bubble formation between the transparent window of the film and the touch screen portion of the device.