IP Library Granted Patent US 7,405,779
Granted Patent B2
US 7,405,779 · App. 11/209,102 · Granted Jul 29, 2008

Super bright low reflectance liquid crystal display

Assignee: White Electronic Designs Corp.
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Quick Facts
Patent No.
US 7,405,779
App. No.
11/209,102
Granted
Jul 29, 2008
Kind
B2
Abstract

A liquid crystal display (LCD) exhibiting enhanced optical viewing performance. In a preferred embodiment, the LCD comprises a liquid crystal display panel, the liquid crystal display panel comprising a pair of transparent substrates, liquid crystal material sandwiched between the transparent substrates and transparent electrodes positioned between the liquid crystal material and the transparent substrates. The LCD also comprises a rear polarizer assembly comprising a compensation film, a polarizer mounted on the rear surface of the compensation film, and a first index-matched, pressure sensitive adhesive (PSA) mounted on the front surface of the compensation film, the PSA being adhered to the rear surface of the LCD panel. The LCD also comprises a front polarizer assembly, the front polarizer assembly comprising a front polarizer, a compensation film mounted on the rear surface of the front polarizer and an index-matched PSA mounted on the front surface of the front polarizer. The front polarizer is crossed relative to the rear polarizer. The front polarizer assembly may be adhered to the front of the LCD panel with a second index-matched, optical bonding material or may be spaced therefrom by an air gap. A transparent cover is mounted on the second index-matched PSA. The transparent cover is preferably a plastic plate. The plastic plate may be textured to reduce glare or may have an anti-reflection coating or an anti-reflection film applied to the front surface thereof. Instead of a plastic plate, the transparent cover may be a glass plate or a touch panel.

Claims (8)

1. A liquid crystal display comprising:

(a) a liquid crystal display panel;

(b) a touch panel positioned in front of said liquid crystal display panel;

(c) a rear polarizer positioned behind said liquid crystal display panel;

(d) a single front polarizer positioned in front of said liquid crystal display panel and in front of said touch panel, wherein the rear polarizer and the single front polarizer are orthogonal to one another;

(e) a backlight, said backlight being positioned behind said rear polarizer; and

(f) an anti-reflection coating positioned behind said single front polarizer and in front of said touch panel.

2. The liquid crystal display as claimed in claim 1 wherein said liquid crystal display panel comprises a first transparent substrate, a second transparent substrate, liquid crystal material positioned between said first and second transparent substrates, a first transparent electrode positioned between said liquid crystal material and said first transparent substrate, and a second transparent electrode positioned between said liquid crystal material and said second transparent substrate.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 16, 2011
From: VIA OPTRONICS, LLC
To: VIA OPTRONICS GMBH
Reel/Frame 026756/0539 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 29, 2010
From: WHITE ELECTRONIC DESIGNS CORP.
To: VIA OPTRONICS, LLC
Reel/Frame 024155/0573 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 18, 2010
From: SANELLE, JOSEPH J.; BREILING, DIGGY R.; DOYLE, DANIEL R.
To: WHITE ELECTRONIC DESIGNS CORP.
Reel/Frame 024102/0389 →
Continuity (3)
Continuation 0977219700 · Jan 29, 2001
Continuation In Part 0923558400 · Jan 22, 1999
Related Publication 20060001800A1 · Jan 5, 2006