US 12,468,191 B2
Light emitting device
Yujun Chiu, Tainan (TW)
Assigned to Innolux Corporation, Miao-Li County (TW)
Filed by Innolux Corporation, Miao-Li County (TW)
Filed on Oct. 18, 2024, as Appl. No. 18/920,654.
Application 18/920,654 is a continuation of application No. 18/481,758, filed on Oct. 5, 2023, granted, now 12,153,307.
Application 18/481,758 is a continuation of application No. 17/859,842, filed on Jul. 7, 2022, granted, now 11,809,041, issued on Nov. 7, 2023.
Application 17/859,842 is a continuation of application No. 17/195,928, filed on Mar. 9, 2021, granted, now 11,415,833, issued on Aug. 16, 2022.
Prior Publication US 2025/0044639 A1, Feb. 6, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/13357 (2006.01)
CPC G02F 1/133603 (2013.01) [G02F 1/133606 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A light emitting device, comprising:
a backplate comprising a side portion and a bottom portion connecting to the side portion;
a reflection layer disposed on the side portion and the bottom portion;
a circuit board disposed on the bottom portion;
a plurality of light emitting units disposed on the circuit board; and
a film disposed on the plurality of light emitting units and comprising a plurality of protrusions,
wherein an extending direction of a lengthwise side of the circuit board is parallel to an extending direction of the plurality of protrusions,
wherein a pitch between two adjacent ones of the plurality of light emitting units is greater than an optical distance between the film and the circuit board.