US 12,328,985 B2
Light emitting device and method for driving the same, and display panel
Zhaoyang Lu, Shenzhen (CN); and Rongrong Li, Shenzhen (CN)
Assigned to HKC CORPORATION LIMITED, Shenzhen (CN)
Filed by HKC CORPORATION LIMITED, Shenzhen (CN)
Filed on Jul. 6, 2023, as Appl. No. 18/347,968.
Claims priority of application No. 202310093483.3 (CN), filed on Jan. 31, 2023.
Prior Publication US 2024/0260303 A1, Aug. 1, 2024
Int. Cl. G09G 3/32 (2016.01); H05B 45/60 (2022.01); H10K 50/19 (2023.01); H10K 59/123 (2023.01)
CPC H10K 50/19 (2023.02) [H05B 45/60 (2020.01); H10K 59/123 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A light emitting device, comprising:
a first light emitting unit comprising: a first cathode, a first electron transport layer, a first luminescent layer, a first hole transport layer, and a first anode arranged sequentially from bottom to top; and
a second light emitting unit comprising: a second anode, a second hole transport layer, a second luminescent layer, a second electron transport layer, and a second cathode arranged sequentially from bottom to top; wherein
the second light emitting unit is arranged beneath the first light emitting unit;
the first light emitting unit and the second light emitting unit are alternately conducted; and
the first cathode, the first anode, the second cathode, and the second anode are all connected to AC power supplies, respectively.