IP Library Granted Patent US 8,154,691
Granted Patent B2
US 8,154,691 · App. 12/046,265 · Granted Apr 10, 2012

Altering surfaces of display screens

Assignee: Pure Depth Limited
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Quick Facts
Patent No.
US 8,154,691
App. No.
12/046,265
Granted
Apr 10, 2012
Kind
B2
Abstract

A matte surface of a display screen is converted to an optically flat surface, for example, via an epoxy resin coating or the like which has a refractive index equal to that of the matte surface. A film with a substantially flat surface may be applied to the matte surface. Alternatively, the matte surface may be removed from the screen, and replaced with an optically smooth surface. The matte surface may be a diffusive surface formed on a birefringent film of an LCD screen. The display screen is the front screen of a multilevel three-dimensional display comprising layered screens, and altering the surface from matte to flat reduces the blurring of displayed images.

Claims (9)

1. A method of altering a matte surface, said method comprising:

removing a first component of a display device, wherein said first component comprises said matte surface, wherein said display device comprises a first display screen and a second display screen, wherein said first and second display screens overlap, wherein said first display screen is operable to display a first image using a first plurality of pixels, wherein said second display screen is operable to display a second image using a second plurality of pixels; and

replacing said first component with a second component comprising a smooth surface.

2. The method of claim 1 , wherein said second component comprises a polarizing film.

3. The method of claim 2 , wherein said polarizing film comprises a polarizer encapsulated within a protective laminate.

4. The method of claim 1 , wherein a blurriness of said first image viewed through said second component is less than a blurriness of said first image viewed through said first component.

5. The method of claim 1 , wherein said removing further comprises removing said first display screen, and wherein said replacing further comprises replacing said first display screen with a third display screen comprising said second component.

6. The method of claim 1 , wherein said first display screen comprises a liquid crystal display.

7. The method of claim 1 , wherein said second display screen comprises a liquid crystal display.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 11, 2024
From: APTIV MANUFACTURING MANAGEMENT SERVICES S.À R.L.
To: APTIV TECHNOLOGIES AG
Reel/Frame 066551/0219 →
MERGER Recorded Feb 11, 2024
From: APTIV TECHNOLOGIES (2) S.À R.L.
To: APTIV MANUFACTURING MANAGEMENT SERVICES S.À R.L.
Reel/Frame 066566/0173 →
ENTITY CONVERSION Recorded Feb 11, 2024
From: APTIV TECHNOLOGIES LIMITED
To: APTIV TECHNOLOGIES (2) S.À R.L.
Reel/Frame 066746/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 5, 2022
From: PUREDEPTH LIMITED (ALSO REFERRED TO AS PURE DEPTH LIMITED); PUREDEPTH INC. (ALSO REFERRED TO AS PURE DEPTH)
To: APTIV TECHNOLOGIES LIMITED
Reel/Frame 059596/0413 →
SECURITY INTEREST Recorded Jun 30, 2015
From: PUREDEPTH LIMITED
To: K ONE W ONE LIMITED
Reel/Frame 035997/0146 →
Priority Claims (2)
NZ 508258 · Nov 17, 2000 · national
NZ 508826 · Dec 12, 2000 · national
Continuity (2)
Continuation 10416885
Related Publication 20080152842A1 · Jun 26, 2008