US 12,002,916 B2
Backplane and glass-based circuit board
Wengang Su, Beijing (CN); Wei Hao, Beijing (CN); Haiwei Sun, Beijing (CN); Lingyun Shi, Beijing (CN); Feifei Wang, Beijing (CN); and Rui Shi, Beijing (CN)
Assigned to BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Sep. 8, 2022, as Appl. No. 17/930,514.
Application 17/930,514 is a continuation of application No. 16/961,439, granted, now 11,469,359, previously published as PCT/CN2019/109452, filed on Sep. 30, 2019.
Prior Publication US 2023/0006121 A1, Jan. 5, 2023
Int. Cl. H01L 33/62 (2010.01); H01L 23/48 (2006.01); H01L 25/075 (2006.01); H01L 33/60 (2010.01)
CPC H01L 33/62 (2013.01) [H01L 23/48 (2013.01); H01L 25/0753 (2013.01); H01L 33/60 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A backplane, comprising:
a base substrate;
a plurality of light-emitting units, arranged in an array on the base substrate,
wherein each of the plurality of the light-emitting units comprises at least one light-emitting sub-unit; the at least one light-emitting sub-unit comprises a connection line and a plurality of light-emitting diode chips electrically connected with the connection line; the plurality of the light-emitting diode chips are located on a side of the connection line away from the base substrate;
in each of the light-emitting sub-units, the connection line comprises a first connection portion, a second connection portion and a third connection portion; in each of the light-emitting sub-units, the third connection portion comprises a plurality of connection sub-portions, each of the connection sub-portions comprise at least one electrical contact point; the electrical contact points at adjacent ends of adjacent connection sub-portions constitute an electrical contact point pair, wherein
the plurality of the connection sub-portions comprise a first connection sub-portion and a second connection sub-portion,
the first connection sub-portion extends along a first direction parallel to the base substrate; the first connection sub-portion comprises a connection region, a part of the first sub-portion where the connection region is located forms a shape of notch, and the electrical contact point of the first connection sub-portion is located on a side of the connection region facing the notch,
the second connection sub-portion extends along the second direction parallel to the base substrate and intersecting with the first direction, the electrical contact point of the second connection sub-portion and the electrical contact point of an adjacent first connection sub-portion located in the connection region constitute the electrical contact point pair,
in each of the light-emitting sub-units, the first connection portion comprises a first input end; the second connection portion comprises a second input end; and the first connection portion and the second connection portion respectively comprise an electrical contact point,
both ends of the third connection portion respectively comprise an electrical contact point; the electrical contact point at one end of the third connection portion and the electrical contact point of the first connection portion constitute an electrical contact point pair; the electrical contact point at the other end of the third connection portion and the electrical contact point of the second connection portion constitute an electrical contact point pair,
the light-emitting sub-unit comprises a plurality of first connection sub-portion rows extending along the first direction and arranged in the second direction; each of the first connection sub-portion rows comprises at least one first connection sub-portion; two end portions of the second connection sub-portion are respectively located in notches opposite to each other at end portions of adjacent first connection sub-portion rows, so that the adjacent first connection sub-portion rows are connected with each other by the second connection sub-portion and the light-emitting diode chips, and
except the connection regions located at both ends of the first connection sub-portion row, the first connection sub-portion row has a substantially equal size in the second direction at respective positions in the first direction.