IP Library Granted Patent US 8,771,448
Granted Patent B2
US 8,771,448 · App. 13/771,454 · Granted Jul 8, 2014

Curvature reduction for switchable polymer lenticulars

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Quick Facts
Patent No.
US 8,771,448
App. No.
13/771,454
Granted
Jul 8, 2014
Kind
B2
Abstract

A method for fabricating lenticulars includes applying a rubbing layer on a lenticular structure. The rubbing layer is baked on the lenticular structure before installation of the lenticular structure on a plate. After baking, the lenticular structure is applied to the plate.

Claims (14)

1. A method for fabricating lenticulars, comprising the acts of:

applying a rubbing layer on a lenticular foil having lenticular cavities, wherein the lenticular foil is unattached to a plate having a coefficient of thermal expansion different from the lenticular foil;

baking the rubbing layer on the lenticular foil in an unconstrained condition before installation of the lenticular foil on the plate;

after baking, applying the lenticular foil to the plate;

rubbing the rubbing layer;

filling the lenticular cavities in the lenticular foil with liquid crystal material;

applying a substrate with a second rubbing layer to seal the liquid crystal in the lenticular cavities to form lenticulars;

forming electrodes adjacent to the lenticulars for altering an electric field to permit switching of the lenticulars, and

providing a display portion to illuminate the switchable lenticulars using pixels and control switching operations of the lenticulars.

2. The method as recited in claim 1 , further comprising rubbing the second rubbing layer.

3. The method as recited in claim 1 , wherein the rubbing layer includes polyimide and the act of baking includes applying a temperature of between about 120 to about 180 degrees Centigrade.

4. The method as recited in claim 1 , wherein the plate includes a glass plate and the act of applying the lenticular foil includes laminating the lenticular foil to the glass plate.

5. The method as recited in claim 1 , wherein the lenticulars include switchable lenticulars, the method further comprising the act of forming conductive electrodes to switch modes of the lenticulars.

6. The method as recited in claim 1 , wherein the act of applying a rubbing layer includes one of printing and spinning on the rubbing layer.

Assignments (3)
SECURITY INTEREST Recorded Nov 4, 2024
From: LEIA, INC.; LEIA SPV LLC; DIMENCO HOLDING B.V.
To: LELIS, INC., AS AGENT
Reel/Frame 069296/0265 →
CHANGE OF NAME Recorded Nov 15, 2023
From: KONINKLIJKE PHILIPS ELECTRONICS N.Y.
To: KONINKLIJKE PHILIPS NV.
Reel/Frame 065598/0589 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 28, 2023
From: KONINKLIJKE PHILIPS N.V.
To: LEIA INC.
Reel/Frame 065385/0825 →