Holographic display device and holographic display method

US10948738B2 · kind B2 · utility

Assignee

• BOE Technology Group Co., Ltd. · CN

Inventors

• Jifeng Tan · Beijing, CN
• Xue Dong · Beijing, CN
• Wei Wang · Beijing, CN
• Xiaochuan Chen · Beijing, CN
• Yafeng Yang · Beijing, CN
• Xin Gu · San Francisco, US
• Feng Guan · Beijing, CN
• Meili Wang · Beijing, CN

Key dates

• Filing date: Jul 25, 2017
• Grant date: Mar 16, 2021
• Expiry date: Nov 8, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G03H2240/42
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

There is provided a holographic display device, which includes a display panel including plural sub-pixels, wherein each sub-pixel includes plural subdivided pixels, and each subdivided pixel has an adjustable light transmittance; a backlight, configured to provide reference light to the display panel; a phase adjustment layer, including plural transparent phase adjustment components, wherein each phase adjustment component is configured to adjust a phase of a light ray transmitted through the phase adjustment component, and the phase adjustment components corresponding to a single sub-pixel have phase adjustment amounts different from each other; and a controller, configured to obtain a target phase of a light ray to be transmitted through each sub-pixel, and determine a target subdivided pixel, which corresponds to the target phase, in each sub-pixel, and further configured to obtain a target intensity of the light ray, and adjust a light transmittance of the target subdivided pixel.