IP Library Granted Patent US 9,594,277
Granted Patent B1
US 9,594,277 · App. 14/733,745 · Granted Mar 14, 2017

Multi-domain pixel array

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Quick Facts
Patent No.
US 9,594,277
App. No.
14/733,745
Granted
Mar 14, 2017
Kind
B1
Abstract

A multi-domain liquid crystal pixel array includes two substrate layers and liquid crystal disposed between the two substrate layers. The multi-domain liquid crystal pixel array also includes at least one alignment layer having four or more alignment zones across the multi-domain liquid crystal pixel array. Each alignment zone has a different pre-tilt liquid crystal orientation than the other alignment zones. The alignment zones are configured to generate divergent image light with respect to a center of the multi-domain liquid crystal pixel array.

Claims (11)

1. A multi-domain liquid crystal pixel array comprising:

two substrate layers;

liquid crystal disposed between the two substrate layers; and

at least one alignment layer having four or more alignment zones across the multi-domain liquid crystal pixel array, wherein each alignment zone has a different pre-tilt liquid crystal orientation for the liquid crystal than the other alignment zones, wherein the alignment zones are configured to generate divergent image light with respect to a center of the multi-domain liquid crystal pixel array, and wherein each of the alignment zones includes a plurality of mono-domain pixels.

2. The multi-domain liquid crystal pixel array of claim 1 , wherein at least four of the alignment zones have a same magnitude angle value of the pre-tilt liquid crystal orientation to generate the divergent image light that is symmetric about the center of the multi-domain liquid crystal pixel array.

3. The multi-domain liquid crystal pixel array of claim 1 , wherein the multi-domain liquid crystal pixel array is square.

4. The multi-domain liquid crystal pixel array of claim 1 , wherein the alignment zones include four intersecting alignment zones that intersect at the center of the multi-domain liquid crystal pixel array.

5. The multi-domain liquid crystal pixel array of claim 4 , wherein the pre-tilt liquid crystal orientation of the four intersecting alignment zones are graded according to a divergence gradient that increases an angle value of the pre-tilt liquid crystal orientation for pixels in the multi-domain liquid crystal pixel array as the pixels increase in distance from the center of the multi-domain liquid crystal pixel array.

6. The multi-domain liquid crystal pixel array of claim 4 , wherein the four intersecting alignment zones are an inner ring of four outer alignment zones, wherein the four intersecting alignment zones have a first angle value of the pre-tilt liquid crystal orientation, and wherein the four outer alignment zones have a second angle value of the pre-tilt liquid crystal orientation, the second angle value being greater than the first angle value.

7. The multi-domain liquid crystal pixel array of claim 1 , wherein the at least one alignment layer includes a polyimide layer disposed on both of the two substrate layers.

8. The multi-domain liquid crystal pixel array of claim 1 , wherein a lattice structure is formed through a bulk of the liquid crystal, the lattice structure providing additional alignment to the liquid crystal.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE THE REMOVAL OF THE INCORRECTLY RECORDED APPLICATION NUMBERS 14/149802 AND 15/419313 PREVIOUSLY RECORDED AT REEL: 44144 FRAME: 1. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Mar 4, 2024
From: GOOGLE INC.
To: GOOGLE LLC
Reel/Frame 068092/0502 →
CHANGE OF NAME Recorded Oct 6, 2017
From: GOOGLE INC.
To: GOOGLE LLC
Reel/Frame 044144/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 1, 2016
From: GOOGLE INC.
To: X DEVELOPMENT LLC
Reel/Frame 039900/0610 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 9, 2015
From: FU, PEY LUNG; JEPSEN, MARY LOU; WATSON, PHILLIP E.; BASTANI, BEHNAM; VIERI, CARLIN J.; KAZMIERSKI, ANDREI S.; NORTON, ADAM E.; LEE, YA-CHI; CHEN, EDDY GIING-LI; CHEN, HUNG-YU; TAI, SHENYI
To: GOOGLE INC.
Reel/Frame 035872/0203 →