Backlight module and liquid crystal display
US10261240B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2016 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Dec 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133512
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight module includes a light guide plate including a light incident surface having first and second light incident sections and a light propagation track that extends from the first light incident section into the light guide plate and delimits a light propagation path and is formed with an opening. A light bar includes first and second light sources respectively corresponding to the first and second light incident sections to allow light to enter the light propagation path to be reflected by the light propagation track for outward emission and allow light to enter the light guide plate for outward emission from the light emission surface. A control circuit is electrically connected to the first light source and the second light source for controlling ON/OFF states of the first light source and the second light source thereby allowing for displaying in a sectionized fashion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.