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:
Jan. 25, 2022
Filed:
Jun. 17, 2019
Boe Technology Group Co., Ltd., Beijing, CN;
Xiaolong Li, Beijing, CN;
Wei Qin, Beijing, CN;
Kuanjun Peng, Beijing, CN;
Xueling Gao, Beijing, CN;
Fangzhen Zhang, Beijing, CN;
Jintao Peng, Beijing, CN;
Jinqian Wang, Beijing, CN;
Miaomiao Yang, Beijing, CN;
Shuang Sun, Beijing, CN;
Chunfang Zhang, Beijing, CN;
Shengnan Li, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD, Beijing, CN;
Abstract
A semi-transparent semi-retroreflective film and an air display device are provided. The air display device includes: a first polarizer and a second polarizer assembled with each other to form a cell; a semi-transparent semi-reflective structure and a semi-transparent semi-retroreflective film disposed between the first polarizer and the second polarizer; a first ¼ wave plate disposed at a side of the air display device adjacent to the first polarizer; and a second ¼ wave plate disposed between the semi-transparent semi-reflective structure and the semi-transparent semi-retroreflective film. The air display device is configured such that polarized light incident from the first polarizer, after being processed by an internal optical path of the air display device, exits from the second polarizer to form an air image at a side of the air display device away from the first polarizer.