Light-emitting substrate and display apparatus

1 . A light-emitting substrate, comprising:

a base substrate;

a first wiring layer on the base substrate, wherein the first wiring layer comprises: a first signal line and a second signal line;

a first insulating layer on a side of a first wiring layer facing away from the base substrate; and

a second wiring layer on a side of the first insulating layer facing away from the base substrate, wherein the second wiring layer comprises a plurality of first connecting lines and a plurality of second connecting lines; wherein

the first signal line comprises a plurality of first sub-signal lines extending in a first direction and arranged at intervals; the second signal line is of a continuous structure extending in the first direction;

at least one first sub-signal line among the plurality of first sub-signal lines is coupled with at least one first connecting line among the plurality of first connecting lines, and the second signal line is coupled with at least one second connecting line among the plurality of second connecting lines; and

orthographic projections of the plurality of first connecting lines on the base substrate do not overlap orthographic projections of the second signal lines on the base substrate, and an orthographic projection of at least one of the plurality of first connecting lines on the base substrate has an overlapping region with an orthographic projection of at least one of the plurality of first sub-signal lines on the base substrate.

2 . The light-emitting substrate according to claim 1 , wherein the first wiring layer comprises a plurality of first signal lines and a plurality of second signal lines; wherein

the plurality of first signal lines are arranged sequentially in a second direction;

the plurality of second signal lines are arranged sequentially in the second direction; and

at least two of the plurality of first signal lines are arranged at two sides of one of the plurality of second signal lines.

3 . The light-emitting substrate according to claim 2 , wherein two first signal lines are arranged between two adjacent second signal lines.

4 . The light-emitting substrate according to claim 3 , wherein an orthographic projection of one of the plurality of first sub-signal lines on the base substrate overlaps an orthographic projection of at least one of the plurality of first connecting lines on the base substrate once.

5 . The light-emitting substrate according to claim 1 , wherein the first wiring layer further comprises a drive signal line extending in the first direction; and

a line width of the drive signal line is greater than a line width of the first signal line or a line width of the second signal line.

6 . The light-emitting substrate according to claim 5 , wherein the first wiring layer comprises a plurality of drive signal lines; and

wherein a drive signal line among the plurality of drive signal lines is arranged between the two first signal lines located between two adjacent second signal lines.

7 . The light-emitting substrate according to claim 1 , wherein the first wiring layer comprises a plurality of common voltage signal lines; and

a common voltage signal line among the plurality of common voltage signal lines is arranged between a first signal line and a nearest drive signal line.

8 . The light-emitting substrate according to claim 1 , further comprising: a plurality of light-emitting units arranged in an array, wherein each light-emitting unit comprises a drive circuit and a light-emitting group coupled with the drive circuit, and the light-emitting group comprises a plurality of light-emitting elements;

the drive circuit comprises a first input terminal and an output terminal;

the first input terminal of the drive circuit is coupled with an end of at least one first connecting line among the plurality of first connecting lines, and the other end of the at least one first connecting line is coupled with at least one first sub-signal line among the plurality of first sub-signal lines;

the output terminal of the drive circuit is coupled with an end of at least one third connecting line among a plurality of third connecting lines, and the other end of the at least one third connecting line is coupled with at least one first sub-signal line among the plurality of first sub-signal lines; and

first sub-signal lines coupled with the first input terminal and the output terminal of the same drive circuit are different.

9 . The light-emitting substrate according to claim 8 , wherein the plurality of light-emitting units are arranged into N rows and M columns and divided into a plurality of light-emitting unit groups, and each of the plurality of light-emitting unit groups comprises N rows and Y columns, with a total of N*Y light-emitting units;

in a same light-emitting unit group, the N*Y light-emitting units are sequentially numbered according to row and column distribution positions, a first input terminal of a drive circuit of a light-emitting unit with index of 1 is coupled with a first sub-signal line through the first connecting line, an output terminal of a drive circuit of a light-emitting unit with index of P is coupled with a first sub-signal line which is coupled with a first input terminal of a drive circuit of a light-emitting unit with index of (P+1) through a third connecting line, and an output terminal of the drive circuit of the light-emitting unit with index of (P+1) is coupled with another first sub-signal line through a third connecting line;

the first sub-signal line coupled with the first input terminal of the drive circuit of the light-emitting unit with index of 1 and the second sub-signal line coupled with the output terminal of the drive circuit of the light-emitting unit with index of (P+1) are coupled with drive circuits of light-emitting units with other indexes;

wherein, N is an integer greater than 0, M is an integer greater than 0, 0<Y≤M and Y is an integer, 0<P<N*Y and P is an integer.

10 . The light-emitting substrate according to claim 9 , wherein the drive circuit comprises a second input terminal; a drive circuit is coupled with at least one second connecting line; and

second input terminals of all drive circuits in each light-emitting unit group are coupled with a same second signal line through the second connecting lines.

11 . The light-emitting substrate according to claim 10 , wherein a light-emitting unit group among the plurality of light-emitting unit groups comprises two columns of light-emitting units; and

a second signal line and first signal lines at the two sides of the second signal line are arranged between the two columns of light-emitting units in the light-emitting unit group.

12 . The light-emitting substrate according to claim 11 , wherein the light-emitting group is coupled between a drive voltage terminal and the output terminal of the drive circuit; and

a drive signal line is arranged between every adjacent light-emitting unit groups; and

drive voltage terminals in the two adjacent columns of light-emitting units in different light-emitting unit groups are all coupled with a same drive signal line.

13 . The light-emitting substrate according to claim 12 , wherein an orthographic projection of the drive signal line on the base substrate covers an orthographic projection of at least one light-emitting element among the plurality of light-emitting elements coupled with the drive signal line on the base substrate.

14 . The light-emitting substrate according to claim 13 , further comprising a drive signal conducting line, wherein the drive signal conducting line extends in a second direction, and the drive signal conducting line is coupled with the plurality of drive signal lines respectively.

15 . The light-emitting substrate according to claim 8 , wherein the drive circuit comprises a common voltage terminal; a column of light-emitting units are coupled with a common voltage signal line; and

an orthographic projection of the common voltage signal line on the base substrate covers orthographic projections of a drive circuit and at least two light-emitting elements in the light-emitting unit coupled with the common voltage signal line on the base substrate.

16 . The light-emitting substrate according to claim 15 , wherein the second wiring layer further comprises auxiliary lines arranged at intervals with the first connecting lines, the second connecting lines and the third connecting lines; and

the common voltage signal lines are coupled through the auxiliary lines.

17 . A display apparatus, comprising the light-emitting substrate according to claim 1 .