Backlight unit, display device having the same, and digital information display system having display devices
US10175530B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Oct 3, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/465
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A backlight unit includes a bottom cover, a light source, a middle mold, a diffusion plate and an optical sheet. The bottom cover defines a bottom portion and a sidewall portion which is protruded from the bottom portion. The light source is accommodated in the bottom cover. The middle mold is supported by the bottom cover and defines a horizontal supporting portion and a distance maintaining portion extending from a first end of the horizontal supporting portion in a direction perpendicular to the bottom portion. The diffusion plate overlaps the horizontal supporting portion. The optical sheet overlaps the distance maintaining portion and is spaced apart from the diffusion plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.