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:
Aug. 11, 2026
Filed:
Feb. 26, 2024
Shanghai Tianma Microelectronics Co., Ltd., Shanghai, CN;
Shanghai Tianma Microelectronics Co., Ltd., Shanghai, CN;
Abstract
Provided are a liquid crystal grating and a display device. The liquid crystal grating is configured to modulate incident light beams of multiple colors. The light beams include first color light. The liquid crystal grating includes a first substrate, a liquid crystal layer and a second substrate. The liquid crystal layer is located between the first substrate and the second substrate and includes multiple liquid crystal molecules. The liquid crystal grating satisfies that Δn×d<λ, where Δndenotes a refractive index difference of birefringence of the liquid crystal molecules corresponding to the first color light, d denotes the thickness of the liquid crystal layer along the direction perpendicular to a plane on which the first substrate is located, and λdenotes the center wavelength of the first color light.