Display device and control method thereof

US11561430B2 · kind B2 · utility

Assignee

• Xiamen Tianma Micro-Electronics Co., Ltd. · CN

Inventors

• Zhaodi Yin · 红钢城街道, CN
• Yangzhao Ma · 红钢城街道, CN
• You Gao · Shanghai, CN
• Jian Wu · Shanghai, CN
• Kaen Jiang · Shanghai, CN
• Zhenkai YANG · 红钢城街道, CN

Key dates

• Filing date: Apr 16, 2021
• Grant date: Jan 24, 2023
• Expiry date: Apr 16, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/133621
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Provided are a display device and a control method thereof. The polarizer is disposed on a light-emitting side of the display panel, and the imaging module is disposed on a non-light-emitting side of the display panel. The display panel includes a first display region, and in a direction perpendicular to the polarizer, the polarizer covers the first display region and the imaging module at least partially overlaps the first display region. The polarizer includes a polarized state and an unpolarized state, and a light transmittance of the polarizer in the unpolarized state is greater than a light transmittance in the polarized state. The first reaction light emitting unit emits a first reaction light to the first display region. The polarizer includes a light sensitive structure, and the light sensitive structure adjusts the polarizer from the polarized state to the unpolarized state under the action of the first reaction light.