Light-emitting device and method for manufacturing the same, and light-emitting apparatus

Patent metadata

Field	Value
Publication number	US-2024357901-A1
Application number	US-202218255238-A
Country	US
Kind code	A1
Filing date	May 31, 2022
Priority date	May 31, 2022
Publication date	Oct 24, 2024
Grant date	—

Abstract

A light-emitting device includes: a substrate, at least one induction coil located on a side of the substrate, and at least two light-emitting units. The induction coil includes turns of conductive wiring. The light-emitting units are located on a side of the induction coil away from the substrate; each light-emitting unit includes a first electrode and a second electrode, and a first electrode and a second electrode of a same light-emitting unit are electrically connected to different turns of conductive wiring of a same induction coil; the light-emitting units include at least one first-type light-emitting unit and at least one second-type light-emitting unit. An equivalent number of turns of conductive wiring between a first electrode and a second electrode of a first-type light-emitting unit is different from an equivalent number of turns of conductive wiring between a first electrode and a second electrode of a second-type light-emitting unit.

First claim

1 . A light-emitting device, comprising:
a substrate; at least one induction coil located on a side of the substrate, the induction coil including a plurality of turns of conductive wiring; and at least two light-emitting units located on a side of the induction coil away from the substrate, wherein each light-emitting unit includes a first electrode and a second electrode, and a first electrode and a second electrode of a same light-emitting unit are electrically connected to different turns of conductive wiring of a same induction coil; the at least two light-emitting units include at least one first-type light-emitting unit and at least one second-type light-emitting unit, and an equivalent number of turns of conductive wiring between a first electrode and a second electrode of a first-type light-emitting unit in the at least one first-type light-emitting unit is different from an equivalent number of turns of conductive wiring between a first electrode and a second electrode of a second-type light-emitting unit in the at least one second-type light-emitting unit.

2 . The light-emitting device according to claim 1 , wherein
the at least one induction coil includes at least one first-type induction coil; the first electrode of the first-type light-emitting unit in the at least one first-type light-emitting unit and the first electrode of the second-type light-emitting unit in the at least one second-type light-emitting unit are electrically connected to a designated end of a first-type induction coil in the at least one-first type induction coil; the second electrode of the first-type light-emitting unit in the at least one first-type light-emitting unit and the second electrode of the second-type light-emitting unit in the at least one second-type light-emitting unit are electrically connected to different turns of conductive wiring of the first-type induction coil in the at least one first-type induction coil; and the first-type induction coil is helically disposed around a first central point thereof and spreads out; the designated end of the first-type induction coil is an end of the first-type induction coil proximate to the first central point, or an end of the first-type induction coil away from the first central point.

3 . The light-emitting device according to claim 2 , wherein
a plurality of first-type induction coils are provided, and the plurality of first-type induction coils are insulated from each other.

4 . The light-emitting device according to claim 3 , wherein
regions surrounded by outermost turns of conductive wirings of at least two first-type induction coils are partially overlapped in a thickness direction of the substrate.

5 . The light-emitting device according to claim 1 , wherein
the at least one induction coil includes a second-type induction coil, and the second-type induction coil includes a plurality of sub-coils; each sub-coil is helically disposed around a respective second central point and spreads out; an end of each sub-coil proximate to the respective second central point surrounded thereby is electrically connected to one another to form a first connection end, and an end of each sub-coil away from the respective second central point surrounded thereby is electrically connected to one another to form a second connection end; the first electrode of the first-type light-emitting unit in the at least one first-type light-emitting unit and the first electrode of the second-type light-emitting unit in the at least one second-type light-emitting unit are electrically connected to a designated end of the second-type induction coil, and the second electrode of the first-type light-emitting unit in the at least one first-type light-emitting unit and the second electrode of the second-type light-emitting unit in the at least one second-type light-emitting unit are electrically connected to different turns of conductive wiring of the second-type induction coil; and the designated end of the second-type induction coil is the first connection end or the second connection end.

6 . The light-emitting device according to claim 5 , wherein
a plurality of first-type light-emitting units are provided, and second electrodes of the plurality of first-type light-emitting units are electrically connected to conductive wirings of sub-coils in the plurality of sub-coils, the conductive wirings being in a same turn; and/or a plurality of second-type light-emitting units are provided, and second electrodes of the plurality of second-type light-emitting units are electrically connected to conductive wirings of sub-coils in the plurality of sub-coils, the conductive wirings being in a same turn.

7 . The light-emitting device according to claim 5 , wherein
the plurality of sub-coils are arranged in a same layer; the light-emitting device further comprises at least one connecting wiring located on a side of the plurality of sub-coils away from the substrate; ends of the plurality of sub-coils proximate to respective second central points surrounded thereby are electrically connected through a connecting wiring; and ends of the plurality of sub-coils away from the respective second central points surrounded thereby are electrically connected through another connecting wiring; or the ends of the plurality of sub-coils away from the respective second central points surrounded thereby converge to a same position.

8 . The light-emitting device according to claim 7 , wherein
one of the first electrode and the second electrode of the light-emitting unit is closer to the substrate than another thereof; the at least one connecting wiring is arranged in a same layer as the one of the first electrode and the second electrode closer to the substrate.

9 . The light-emitting device according to claim 5 , wherein
the plurality of sub-coils are sequentially arranged in a thickness direction of the substrate and away from the substrate, and orthographic projections of the plurality of sub-coils on the substrate are at least partially overlapped.

10 . The light-emitting device according to claim 9 , wherein
in any two adjacent sub-coils, an orthographic projection, on the substrate, of at least one end of a sub-coil that is closer to the substrate is located outside of an orthographic projection, on the substrate, of a sub-coil that is farther away from the substrate.

11 . The light-emitting device according to claim 1 , wherein the light-emitting device comprises:
a first electrode layer and a second electrode layer, both of which are located on the side of the induction coil away from the substrate, wherein the first electrode layer is located on a side of the second electrode layer away from the substrate; the first electrode of each light-emitting unit is included in the first electrode layer, and the second electrode of each light-emitting unit is included in the second electrode layer; the second electrode layer further includes a bridging pattern, the first electrode of each light-emitting unit is connected to the bridging pattern through a via hole, and the bridging pattern is connected to the induction coil through another via hole; the second electrode of each light-emitting unit is electrically connected to the induction coil through yet another via hole.

12 . The light-emitting device according to claim 1 , wherein
each light-emitting unit further includes a light-emitting layer located between the first electrode and the second electrode.

13 . A light-emitting apparatus, comprising:
a first protective layer and a second protective layer; and the light-emitting device according to claim 1 , wherein the light-em

Assignees

• Boe Technology Group Co Ltd

Inventors

• Zhao Xiyu
• Wen Mengyang
• Tao Xuan
• Ping Chen
• Chen Guanqin

Classifications

• H10D86/481

  integrated with passive devices, e.g. auxiliary capacitors · CPC title

• H10K59/82 Primary

  Interconnections, e.g. terminals (H10K59/131, H10K59/179 take precedence) · CPC title

• H10K59/84

  Parallel electrical configurations of multiple OLEDs · CPC title

• H10K71/60 Primary

  Forming conductive regions or layers, e.g. electrodes · CPC title