US 12,137,584 B2
Display panel having divided area sub-pixel units
Guoying Wang, Beijing (CN); and Zhen Song, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Jun. 3, 2022, as Appl. No. 17/831,557.
Application 17/831,557 is a continuation of application No. 16/454,359, filed on Jun. 27, 2019, granted, now 11,380,747.
Claims priority of application No. 201811311226.8 (CN), filed on Nov. 6, 2018.
Prior Publication US 2022/0293706 A1, Sep. 15, 2022
Int. Cl. H10K 59/12 (2023.01); H10K 59/122 (2023.01); H10K 59/124 (2023.01); H10K 59/35 (2023.01); H10K 59/38 (2023.01); H10K 71/00 (2023.01); G02F 1/1335 (2006.01); H01L 33/12 (2010.01); H01L 33/42 (2010.01); H10K 10/46 (2023.01); H10K 50/828 (2023.01); H10K 59/121 (2023.01); H10K 59/123 (2023.01)
CPC H10K 59/124 (2023.02) [H10K 59/122 (2023.02); H10K 59/35 (2023.02); H10K 59/38 (2023.02); H10K 71/00 (2023.02); G02F 1/133514 (2013.01); G02F 1/133519 (2021.01); H01L 33/12 (2013.01); H01L 33/42 (2013.01); H10K 10/464 (2023.02); H10K 50/828 (2023.02); H10K 59/12 (2023.02); H10K 59/1201 (2023.02); H10K 59/1213 (2023.02); H10K 59/123 (2023.02)] 6 Claims
OG exemplary drawing
 
1. A display panel, comprising a pixel unit, the pixel unit comprising a plurality of sub-pixel units, each of the plurality of sub-pixel units comprising at least one transparent film layer, the at least one transparent film layer comprising:
a buffer layer on a first base substrate,
an interlayer insulating layer in a thin film transistor on a side of the buffer layer facing away from the first base substrate,
a first protective layer on a side of the interlayer insulating layer facing away from the buffer layer,
a planarization layer on a side of the first protective layer facing away from the interlayer insulating layer,
a pixel defining layer on a side of the planarization layer facing away from the first protective layer, wherein the pixel defining layer defines a light-emitting area, and
a light-emitting layer and a transparent electrode of an electroluminescent device on a side of the thin film transistor facing away from the first base substrate, wherein the electroluminescent device is electrically connects to the thin film transistor and the transparent electrode is on a side of the light-emitting layer facing away from the thin film transistor,
wherein each of the plurality of sub-pixel units is divided into the light- emitting area and a light-transmitting area,
wherein at least one of the buffer layer, the interlayer insulating layer, the first protective layer, the planarization layer, the pixel defining layer and the light-emitting layer is confined to the light-emitting area and excluded from the light-transmitting area,
wherein the plurality of sub-pixel units comprises a red sub-pixel unit, a blue sub-pixel unit, and a green sub-pixel unit, the light-emitting layers of the plurality of sub-pixel units are white light-emitting layers, the red sub-pixel unit comprises a red color filter, the blue sub-pixel unit comprises a blue color filter, and the green sub-pixel unit comprises a green color filter, and
wherein the thin film transistor is a top-gate style thin film transistor.