Display apparatus and light source device thereof
US11262620B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2021 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Jun 7, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/856
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a display apparatus and light source device which includes an optical dome having a specifically defined shape to be able to maintain an optical profile of a light source. A display apparatus includes a printed circuit board (PCB), a light emitting diode (LED) chip mounted on the PCB and emitting light, an optical dome formed to enclose the LED chip by being dispensed on the LED chip, a liquid crystal panel blocking or passing light output from the LED chip, and an optical film arranged between the LED chip and the liquid crystal panel, wherein a ratio of height of the optical dome to a diameter of a bottom surface of the optical dome may be 0.25 to 0.31.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.