Backlight module and display device
US10928581B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2019 |
| Grant date | Feb 23, 2021 |
| Priority date | — |
| Expiry date | Sep 9, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133317
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention discloses to a backlight module and a display device. A flexible printed circuit board is connected to a step of a plastic frame, so that the flexible printed circuit board can be prevented from being adhered to a light guide plate, and thus a distance between a light source and an iron frame can be reduced, and heat dissipation performance of the backlight module can be enhanced. A blocking wall is disposed on each of two side faces of a light-emitting unit perpendicular to the plastic frame, and a reflective film is disposed on a side surface of the blocking wall facing the light-emitting unit, so that light emitted from the light-emitting unit can be collected and reflected, and a greater amount of light can enter the light guide plate from the light-emitting unit, enhancing luminous efficiency of the backlight module, and reducing manufacturing costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.