Patent ID: 11874561
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A display apparatus comprising:
a printed circuit board (PCB);
a light emitting diode (LED) chip provided on the PCB and configured to emit light, the LED chip having an optical profile that a larger amount of light is emitted from the LED chip in a lateral direction than in a vertical direction;
an optical dome covering the LED chip; and
a liquid crystal panel configured to block or pass light output from the LED chip,
wherein the optical dome satisfies 1.70<r1/r0<1.83 to maintain the optical profile, where r0 is a straight distance for light vertically emitted from the LED chip to reach a surface of the optical dome and r1 is a straight distance for maximum output light emitted from the LED chip to reach the surface of the optical dome.