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.:
Date of Patent:
Jun. 24, 2025
Filed:
Sep. 19, 2023
Shanghai Tianma Microelectronics Co., Ltd., Shanghai, CN;
Shanghai Tianma Microelectronics Co., Ltd., Shanghai, CN;
Abstract
Provided are a liquid crystal grating and a stereoscopic display device. The liquid crystal grating includes at least one liquid crystal cell. A liquid crystal cell includes a first substrate, first electrodes, a first alignment layer, a liquid crystal layer and a second substrate which are disposed sequentially. In a first state, the liquid crystal cell includes multiple first grating units which are arranged along a first direction, and a first grating unit includes multiple first electrodes which are disposed at intervals from each other along the first direction. Along the first direction, a first electric field is formed between two closest first electrodes which are located in two adjacent first grating units, respectively, and in the liquid crystal cell, an alignment direction of the first alignment layer is the same as an electric field direction of the first electric field.