Backlight module and terminal

US10866462B2 · kind B2 · utility

Assignees

• Chongqing BOE Optoelectronics Technology Co., Ltd. · CN
• BOE Technology Group Co., Ltd. · CN

Inventors

• Xiaolong Liu · College Park, US
• Taeyup Min · Beijing, CN
• Zhi Zhang · Beijing, CN
• He Sun · Hangzhou City, CN
• Keguo Liu · Beijing, CN
• Gang Chen · Sammamish, US
• Taoliang Tang · Beijing, CN
• Changgong Zhu · Beijing, CN
• Jianghong Wen · Beijing, CN

Key dates

• Filing date: May 11, 2018
• Grant date: Dec 15, 2020
• Expiry date: Sep 15, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F1/133314
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A backlight module is provided, including: a back frame in a box shape opening at an opening side; a sealant frame within the back frame; and a light guide plate and a membrane on the light guide plate, both surrounded by the sealant frame; the sealant frame has a step structure including a base portion whose upper surface is a step surface facing towards the opening side and a surrounding wall; the sealant frame has at least one positioning notch recessed into the base portion and the surrounding wall; the membrane has at least one positioning lug at an edge thereof, below the step surface and extending into the positioning notch; and the backlight module includes at least one positioning insert within a respective positioning notch and having a plate piece whose upper surface being an auxiliary supporting surface facing towards the opening side and flush with the step surface.