Three-dimensional display device

US10838225B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Yanzhao Li · Beijing, CN
• Hu Meng · Beijing, CN
• Hui Tian · Cupertino, US
• Long Wang · Cupertino, US
• Chiachiang Lin · Beijing, CN
• Chiehhsing Chung · Beijing, CN

Key dates

• Filing date: Jun 2, 2016
• Grant date: Nov 17, 2020
• Expiry date: Sep 3, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B30/36
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A three-dimensional display device having an imaging space, wherein an up-conversion material is disposed inside the imaging space, a first light source that emits light toward the imaging space in a first direction, and a second light source that emits light toward the imaging space in a second direction. When the three-dimensional display device is operating, the light from the first light source and the light from the second light source intersect in the imaging space to form a convergence line or light convergence plane, such that the up-conversion material on the convergence line or in the convergence plane is excited to emit light.