logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11360353 B1

PDFFull Text
Date of Patent:
Jun. 14, 2022

Filed:

Apr. 08, 2020

Spatial light modulator, formation method thereof, and holographic 3d display apparatus

Applicant:

Shanghai Tianma Micro-electronics Co., Ltd., Shanghai, CN;

Inventors:

Yang Zeng, Shanghai, CN;

Xiaoyue Su, Shanghai, CN;

Shihao Tang, Shanghai, CN;

Assignee:

Shanghai Tianma Micro-Electronics Co., Ltd., Shanghai, CN;

Attorney:

Anova Law Group, PLLC

Primary Examiner:

Dung T Nguyen

Int. Cl.
CPC ...
G02F 1/13363 (2006.01); G02F 1/1335 (2006.01); G02F 1/1337 (2006.01); G02B 30/22 (2020.01); G02F 1/1333 (2006.01); G02F 1/01 (2006.01); G02F 1/1341 (2006.01); G02F 1/1343 (2006.01); G02F 1/1347 (2006.01); G02F 1/137 (2006.01); G03H 1/22 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13363 (2013.01); G02F 1/1337 (2013.01); G02F 1/133528 (2013.01); G02B 30/22 (2020.01); G02F 1/0136 (2013.01); G02F 1/137 (2013.01); G02F 1/1341 (2013.01); G02F 1/13471 (2013.01); G02F 1/133354 (2021.01); G02F 1/133512 (2013.01); G02F 1/133514 (2013.01); G02F 1/133633 (2021.01); G02F 1/133638 (2021.01); G02F 1/134309 (2013.01); G03H 1/2205 (2013.01); G03H 1/2286 (2013.01); G03H 2001/221 (2013.01); G03H 2222/13 (2013.01); G03H 2223/23 (2013.01); G03H 2225/34 (2013.01);
Abstract

A spatial light modulator (SLM) includes a first liquid crystal panel and a second liquid crystal panel that are oppositely configured, and a polarization adjustment part configured between the first liquid crystal panel and the second liquid crystal panel. An alignment direction of the first liquid crystal panel is parallel to an alignment direction of the second liquid crystal panel. The first liquid crystal panel is configured to perform a phase modulation on incident linear-polarized light. The polarization adjustment part is configured to rotate, by a preset angle, a polarization direction of linear-polarized light exited from the first liquid crystal panel. The second liquid crystal panel is configured to adjust a polarization state of linear-polarized light exited from the polarization adjustment part to adjust an amplitude of exited light.

Find Patent Forward Citations

Loading…