IP Library Granted Patent US 7,280,102
Granted Patent B2
US 7,280,102 · App. 10/371,413 · Granted Oct 9, 2007

Light sensitive display

Assignee: Planar Systems, Inc.
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Quick Facts
Patent No.
US 7,280,102
App. No.
10/371,413
Granted
Oct 9, 2007
Kind
B2
Abstract

A light sensitive display.

Claims (7)

1. A liquid crystal device comprising:

(a) a front electrode layer;

(b) a rear electrode layer;

(c) a liquid crystal material located between said front electrode layer and said rear electrode layer;

(d) changing an electrical potential between said rear electrode layer and said front electrode layer to selectively modify portions of said liquid crystal material to change the polarization of the light incident thereon;

(e) a plurality of light sensitive elements located together with said rear electrode layer; and

(f) a pen that provides an optical signal of a visible color to said light sensitive elements where the intensity of said optical signal provided to said light sensitive elements of the same color is modified based upon pressure exerted by said pen against said liquid crystal device, wherein said device provides a non-binary output of the level of said optical signal detected by said light sensitive elements.

Assignments (5)
RELEASE OF SECURITY INTEREST Recorded Dec 11, 2009
From: BANK OF AMERICA, N.A.
To: PLANAR SYSTEMS, INC.
Reel/Frame 023639/0220 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2009
From: PLANAR SYSTEMS, INC.
To: APPLE INC.
Reel/Frame 022856/0450 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 16, 2009
From: ABILEAH, ADIEL; DEN BOER, WILLEM
To: PLANAR SYSTEMS, INC.
Reel/Frame 022117/0376 →
SECURITY AGREEMENT Recorded Sep 28, 2007
From: PLANAR SYSTEMS, INC.
To: BANK OF AMERICA, N.A.
Reel/Frame 019892/0957 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 28, 2003
From: ABILEAH, ADIEL; DEN BOER, WILLEN
To: PLANAR SYSTEMS, INC.
Reel/Frame 014115/0081 →
Continuity (3)
Provisional Application 6038304000 · May 23, 2002
Provisional Application 6035926300 · Feb 20, 2002
Related Publication 20030179323A1 · Sep 25, 2003