Backlight modules and display devices

US11630348B2 · kind B2 · utility

Assignees

• BOE MLED Technology Co., Ltd. · CN
• BOE Technology Group Co., Ltd. · CN

Inventors

• Pei QIN · Beijing, CN
• Yutao Hao · Beijing, CN
• Donglei Li · Beijing, CN
• Hui Liu · Tianjin, CN
• Shuo-Hong Wang · Beijing, CN
• Jiaxin Li · Changsha, CN
• Ying Chen · Jinshanmian, TW
• Jie Gao · Beijing, CN
• Honghao Yu · Beijing, CN

Key dates

• Filing date: Jun 10, 2022
• Grant date: Apr 18, 2023
• Expiry date: Jun 10, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/133614
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A backlight module and a display device are disclosed. The backlight module includes: a back plate (1); a middle frame (3) disposed on the back plate (1); a light-emitting substrate (2) disposed on the back plate (1) and in the middle frame (3), the light-emitting substrate (2) including a first light-emitting area (203) and a second light-emitting area (204) surrounding the first light-emitting area (203), and the second light-emitting area (204) being close to an edge of the light-emitting substrate (2); a light compensation structure (100) close to the edge of the light-emitting substrate (2), the light compensation structure (100) including one or more light conversion materials. The backlight module and the display device can improve the display effect.