Light-emitting backplane and display apparatus

Abstract

A light-emitting backplane and a display apparatus. The light-emitting backplane comprises: a substrate; a plurality of light-emitting units, the plurality of light-emitting units being arranged in a first array; and a plurality of driving members, the plurality of driving members being arranged in a second array, and the orthographic projections of the first array and the second array on the substrate not overlapping. Each driving member comprises m channels; in a first region, each driving member is electrically connected to m light-emitting units at the intersection positions of row a and column b in the first array, and each driving member is electrically connected to different light-emitting units; in a second area, the total number of rows of the first array arranged in a first direction is c, and at least some of the driving members are electrically connected to c*b light-emitting units and d light-emitting units adjacent to the c*b light-emitting units in a second direction, the c*b light-emitting units being at the intersection positions of row c successively arranged in the first direction and column b successively arranged in the second direction in the first array; 0＜c＜a, c*b＜m, and c*b+d＝m; a>1, b>0, m>1, 0<d<m, wherein a, b, c, d and m are all integers.

Description

Luminous back panel and display device Technical Field

[0001] The embodiments of the present disclosure belong to the field of display technology, and particularly relate to a light-emitting backplane and a display device. Background Art

[0002] Mini-LED (Mini Light-Emitting Diode, organic light-emitting diode) display devices can be display devices that use Mini-LED backlight technology (i.e., as the backlight source of liquid crystal display panels), or they can be display devices that directly use Mini-LED as the display unit of the display device. Mini-LED display devices can achieve better contrast and brightness performance through partitioned backlighting, resulting in better display effects.

[0003] Summary of the Invention

[0004] In a first aspect, an embodiment of the present disclosure provides a light-emitting backplane, comprising a display area and a binding side frame area, wherein the binding side frame area is located on one side of the display area, the display area includes a first area and a second area, and the first area and the second area are arranged in sequence along a first direction away from the binding side frame area;

[0005] Wherein, the light-emitting backplane includes:

[0006] base,

[0007] a plurality of light-emitting units, located on one side of the substrate, wherein the plurality of light-emitting units are arranged in a first array along the first direction and the second direction;

[0008] a plurality of driving members located on a side of the substrate where the light-emitting unit is located, the plurality of driving members being arranged in a second array along the first direction and the second direction;

[0009] The first direction and the second direction intersect;

[0010] The orthographic projections of the first array and the second array on the substrate do not overlap;

[0011] The driving element includes m channels. In the first area, each of the driving elements is electrically connected to m light-emitting units at intersections of row a arranged sequentially along the first direction and column b arranged sequentially along the second direction in the first array, and each of the driving elements is electrically connected to different light-emitting units.

[0012] In the second region, the total number of rows of the first array arranged along the first direction is c, and at least some of the driving elements are electrically connected to c*b light-emitting units at the intersection of c rows arranged sequentially along the first direction and b columns arranged sequentially along the second direction in the first array, as well as d light-emitting units adjacent to the c*b light-emitting units along the second direction;

[0013] 0<c<a, c*b<m, c*b+d=m; a>1, b>0, m>1, 0<d<m, a, b, c, d, m are all integers.

[0014] In some embodiments, the device further comprises a plurality of first wirings and a plurality of second wirings, which are located on the side of the substrate where the light emitting unit is located, and on a side of the light emitting unit and the driving element close to the substrate;

[0015] The plurality of first routing lines and the plurality of groups of second routing lines are arranged on the same layer;

[0016] The plurality of first wirings are sequentially arranged along the second direction, and the first wirings extend along the first direction;

[0017] The plurality of first wirings correspond one-to-one to and are electrically connected to the plurality of columns of light-emitting units of the first array arranged sequentially along the second direction;

[0018] The plurality of groups of second routing lines are sequentially arranged along the second direction, and each group of second routing lines extends along the first direction;

[0019] The plurality of groups of second wirings correspond one-to-one to and are electrically connected to the plurality of columns of driving elements of the second array arranged sequentially along the second direction.

[0020] In some embodiments, a=m, b=1.

[0021] In some embodiments, a>1, b>1.

[0022] In some embodiments, a first wiring electrically connected to the light-emitting units in the same column and a group of second wiring electrically connected to the driving elements in a column are respectively located on opposite sides of the light-emitting units in the column along the second direction;

[0023] The orthographic projection of the driving member on the substrate is located between the orthographic projections of two adjacent light-emitting units along the first direction on the substrate;

[0024] The m channels are electrically connected to different light-emitting units through different first connecting lines,

[0025] The first connecting line is provided on the same layer as the first routing line and the second routing line, and the orthographic projections of the first connecting line, the first routing line and the second routing line on the substrate do not overlap with each other.

[0026] In some embodiments, along the second direction, the first routing lines and the second routing lines are alternately arranged in sequence.

[0027] In some embodiments, the driving elements in any column arranged sequentially along the second direction are located between two adjacent columns of the light-emitting units arranged sequentially along the second direction;

[0028] The m channels are electrically connected to different light-emitting units through different first connecting lines,

[0029] The first connecting line is located on a side of the first routing line and the second routing line that is away from the substrate and a side of the light-emitting unit and the driving component that is close to the substrate, and the first connecting line at least partially overlaps with the orthographic projections of the first routing line and the second routing line on the substrate.

[0030] In some embodiments, along the second direction, any group of the second routing lines is located between two adjacent first routing lines;

[0031] The orthographic projections of the first wiring and the corresponding electrically connected column of the light-emitting units on the substrate at least partially overlap.

[0032] In some embodiments, in the second region, a plurality of the first connecting lines extend from each of the channels of the driving element to a side of the second region away from the first region, and extend to electrically connect to the corresponding light-emitting units;

[0033] The orthographic projections of the plurality of first connecting lines on the substrate do not overlap with each other.

[0034] In some embodiments, in the second area, an orthographic projection of the driving element on the substrate is located between orthographic projections of two adjacent light-emitting units along the second direction on the substrate.

[0035] In some embodiments, in the second area, along the arrangement direction of the m light-emitting units electrically connected to the driving element, when m is an even number, the orthographic projection of the driving element on the substrate is located between the orthographic projection of the m / 2th light-emitting unit and the orthographic projection of the m / 2+1th light-emitting unit on the substrate;

[0036] When m is an odd number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the (m-1) / 2th light emitting unit and the orthographic projections of the (m-1) / 2+1th light emitting unit on the substrate.

[0037] In some embodiments, in the second region, among the c*b light-emitting units at the intersection of row c and column b of the first array electrically connected to the driving element, when b is an even number, the orthographic projection of the driving element on the substrate is located between the orthographic projection of the light-emitting unit in the b / 2th column and the orthographic projection of the light-emitting unit in the b / 2+1th column on the substrate;

[0038] When b is an odd number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light-emitting units in the (b-1) / 2th column and the orthographic projections of the light-emitting units in the (b-1) / 2+1th column on the substrate.

[0039] In some embodiments, the driving member further comprises a body, wherein the body is electrically connected to the channel;

[0040] In the first region, the channel is located on a side of the body close to the light-emitting unit to which it is electrically connected, and the second trace is located on a side of the body away from the light-emitting unit to which it is electrically connected;

[0041] A plurality of first connecting wires extend from each of the channels of the driving component to be electrically connected to each of the light-emitting units;

[0042] The orthographic projections of the plurality of first connecting lines on the substrate do not overlap with each other.

[0043] In some embodiments, in the first region, when m is an even number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the (m / 2)th light-emitting unit and the (m / 2+1)th light-emitting unit electrically connected thereto on the substrate;

[0044] When m is an odd number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the (m-1) / 2th light-emitting unit and the (m-1) / 2+1th light-emitting unit electrically connected thereto on the substrate.

[0045] In some embodiments, in the first region, when b is an even number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light-emitting units in the b / 2th column and the light-emitting units in the b / 2+1th column electrically connected thereto on the substrate;

[0046] When b is an odd number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light-emitting units in the (b-1) / 2th column and the light-emitting units in the (b-1) / 2+1th column electrically connected thereto on the substrate.

[0047] In some embodiments, in the first region, when a is an even number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light-emitting units in the a / 2th row and the light-emitting units in the a / 2+1th row electrically connected thereto on the substrate;

[0048] When a is an odd number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light-emitting units in the (a-1) / 2th row and the (a-1) / 2+1th row electrically connected thereto on the substrate.

[0049] In some embodiments, in the second area, at least one of the driving elements is electrically connected to e light-emitting units arranged sequentially along the first direction and f light-emitting units adjacent to the e light-emitting units along the second direction;

[0050] e+f<m, and 0<e<m, 0≤f<m, e and f are both integers.

[0051] In some embodiments, in the second region, at least one of the driving elements is electrically connected to c*b light-emitting units at the intersection of c rows arranged sequentially along the first direction and b columns arranged sequentially along the second direction in the first array, and g light-emitting units adjacent to the c*b light-emitting units along the second direction;

[0052] c*b+g<m;0≤g<m;g is an integer.

[0053] In some embodiments, each group of the second traces includes a power signal line, a ground signal line, a data line, a control signal input line, and a control signal output line;

[0054] The power signal line, the data line, the control signal input line, the ground signal line and the control signal output line are arranged in sequence along the second direction;

[0055] The driving component includes m channel output terminals, two power signal terminals, two ground signal terminals, two data signal terminals, a control signal input terminal and a control signal output terminal;

[0056] The m channel output ends are electrically connected to the m first connection lines respectively in a one-to-one correspondence;

[0057] The power signal line is electrically connected to the two power signal terminals of each of the driving elements in a column of the driving elements;

[0058] The data line is electrically connected to the two data signal terminals of each of the driving elements in a column of the driving elements;

[0059] The ground signal line is electrically connected to the two ground signal terminals of each of the driving elements in a column of the driving elements;

[0060] Along the first direction, the control signal input end of the previous driving element farther away from the binding side frame area is electrically connected to the control signal output end of the next driving element adjacent to it and closer to the binding side frame area, the control signal input end of the driving element closest to the binding side frame area is electrically connected to the control signal input line, and the control signal output end of the driving element farthest from the binding side frame area is electrically connected to the control signal output line.

[0061] In some embodiments, the m channel output ends are sequentially arranged at the first end of the body;

[0062] The two power signal terminals, the two ground signal terminals and the two data signal terminals are symmetrically distributed at the second and third terminals of the body, which are opposite to each other;

[0063] The one control signal input end and the one control signal output end are respectively located at the second end and the third end of the body which are opposite to each other.

[0064] In some embodiments, each group of the second traces includes a power signal line, b ground signal lines, a data line, a control signal input line, and a control signal output line;

[0065] The b ground signal lines are located on opposite sides of a column of driving elements to which they are electrically connected along the second direction, and each ground signal line corresponds to a column of light-emitting units and at least partially overlaps with an orthographic projection of the column of light-emitting units on the substrate;

[0066] The power signal line, the data line, the control signal input line, and the control signal output line are located between two adjacent ground signal lines.

[0067] In some embodiments, the driver includes m channel output terminals, a power signal terminal, b ground signal terminals, a data signal terminal, a control signal input terminal, and a control signal output terminal;

[0068] The m channel output ends are electrically connected to the m first connection lines respectively in a one-to-one correspondence;

[0069] The power signal line is electrically connected to the power signal terminals of a column of the driving elements;

[0070] The data line is electrically connected to the data signal terminals of a column of the driving elements;

[0071] The b ground signal lines correspond one-to-one to and are electrically connected to the b ground signal terminals of each of the driving elements in the same column;

[0072] Along the first direction, the control signal input end of the previous driving element farther away from the binding side frame area is electrically connected to the control signal output end of the next driving element adjacent to it and closer to the binding side frame area, the control signal input end of the driving element closest to the binding side frame area is electrically connected to the control signal input line, and the control signal output end of the driving element farthest from the binding side frame area is electrically connected to the control signal output line.

[0073] In some embodiments, the driving member further comprises a body, wherein the body is electrically connected to the channel;

[0074] The m channel output terminals and the one power signal terminal are arranged at the first end of the body;

[0075] The two ground signal terminals, the one data signal terminal, the one control signal input terminal and the one control signal output terminal are arranged at the second end of the body;

[0076] The first end and the second end are opposite to each other.

[0077] In some embodiments, an insulating layer is provided between the first connecting line and the first routing line and the second routing line.

[0078] The first connecting line is electrically connected to the first routing line through a first via hole provided in the insulating layer;

[0079] The power signal end of each column of the driving elements is electrically connected to the power signal line via a second connecting line and a second via hole provided in the insulating layer;

[0080] The data signal terminals of the driving elements in each column are electrically connected to the data lines via a third connecting line and a third via hole provided in the insulating layer;

[0081] b=2; one of the ground signal terminals of the driving elements in each column is electrically connected to one of the ground signal lines via two fourth connecting lines, a transfer line, and a fourth via hole provided in the insulating layer;

[0082] Another ground signal terminal of each column of the driving elements is electrically connected to another ground signal line via a fifth connecting line and a fifth via hole provided in the insulating layer;

[0083] Along the first direction, the control signal input end of the previous driving element farther away from the binding side frame area and the control signal output end of the next driving element adjacent thereto and closer to the binding side frame area are respectively electrically connected to an intermediate connecting line through a sixth connecting line and a sixth via hole provided in the insulating layer, the control signal input end of the driving element closest to the binding side frame area is electrically connected to the control signal input line through a seventh connecting line and a seventh via hole provided in the insulating layer, and the control signal output end of the driving element farthest from the binding side frame area is electrically connected to the control signal output line through an eighth connecting line and an eighth via hole provided in the insulating layer;

[0084] The second connecting line, the third connecting line, the fourth connecting line, the fifth connecting line, the sixth connecting line, the seventh connecting line and the eighth connecting line are provided on the same layer as the first connecting line;

[0085] The adapter line and the intermediate connecting line are arranged on the same layer as the first routing line and the second routing line.

[0086] In some embodiments, the line widths of the ground signal line and the first routing line are both greater than the line width of the power signal line;

[0087] The line width of the power signal line is greater than the line widths of the data line, the control signal input line, and the control signal output line.

[0088] In some embodiments, the power signal line, the ground signal line, the data line, the control signal input line, and the control signal output line are respectively extended from the display area to the binding side frame area;

[0089] The first wiring extends from the display area to the binding side frame area.

[0090] In some embodiments, the light emitting unit includes at least one lamp bead, and two or more of the lamp beads in the light emitting unit are connected in series;

[0091] The lamp bead at one end of the series connection is close to the driving component and electrically connected to the channel of the driving component, and the lamp bead at the other end of the series connection is close to the first wiring and electrically connected to the first wiring.

[0092] In some embodiments, the lamp beads in the light-emitting unit are arranged in any one of the shapes of a ring, a concentric ring, a circle, an S shape, a rectangle and a polygon.

[0093] In a second aspect, an embodiment of the present disclosure further provides a display device, which includes the above-mentioned light-emitting backplane.

[0094] In some embodiments, a liquid crystal screen is further included, and the light-emitting backplane is located on the back side of the liquid crystal screen, and the light-emitting backplane is used to provide backlight for the liquid crystal screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0095] The accompanying drawings are used to provide a further understanding of the embodiments of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing the detailed exemplary embodiments with reference to the accompanying drawings, in which:

[0096] FIG1a is a schematic diagram of a routing design of a Mini-LED single copper layer backplane on the far side away from the binding side frame area in the related art.

[0097] FIG1b is an enlarged schematic diagram of portion A in FIG1a.

[0098] FIG1c is a schematic diagram of another wiring design of a Mini-LED single copper layer backplane on the far side away from the binding side frame area in the related art.

[0099] FIG1d is an enlarged schematic diagram of portion B in FIG1c.

[0100] FIG1e is an enlarged schematic diagram of portion C in FIG1c.

[0101] FIG2 is a schematic top view of the light-emitting backplane in an embodiment of the present disclosure.

[0102] FIG3 a is a schematic top view of a light-emitting backplane according to an embodiment of the present disclosure.

[0103] FIG3 b is a schematic cross-sectional view of the structure along the DD′ section line in FIG3 a .

[0104] FIG3 c is an enlarged schematic diagram of portion F in FIG3 a .

[0105] FIG3 d is an enlarged schematic diagram of portion G in FIG3 c .

[0106] FIG3e is a schematic top view of another light-emitting backplane in an embodiment of the present disclosure.

[0107] FIG3 f is an enlarged schematic diagram of portion H in FIG3 e .

[0108] FIG3g is an enlarged schematic diagram of portion I in FIG3f.

[0109] FIG3h is a schematic top view of another light-emitting backplane in an embodiment of the present disclosure.

[0110] FIG3i is an enlarged schematic diagram of portion J in FIG3h.

[0111] FIG. 3 j is a schematic diagram illustrating that a respective channel of at least one driving member in the second zone is idle in an embodiment of the present disclosure.

[0112] FIG3k is a top view schematically showing an arrangement of wiring in the light-emitting backplane according to an embodiment of the present disclosure.

[0113] FIG31 is a schematic diagram showing the distribution of multiple ports in a driver according to an embodiment of the present disclosure.

[0114] FIG4 a is a schematic top view of another light-emitting backplane in an embodiment of the present disclosure.

[0115] FIG4 b is a schematic cross-sectional view of the structure along the EE′ section line in FIG4 a .

[0116] FIG4c is an enlarged schematic diagram of portion K in FIG4a.

[0117] FIG4 d is an enlarged schematic diagram of portion M in FIG4 c .

[0118] FIG4e is another schematic diagram of the distribution of multiple ports in the driving member according to an embodiment of the present disclosure.

[0119] FIG5 is a schematic cross-sectional view of the structure of a display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0120] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, a light-emitting backplane and a display device provided by the embodiments of the present disclosure are further described in detail below with reference to the accompanying drawings and specific implementation plans.

[0121] The embodiments of the present disclosure will be described more fully below with reference to the accompanying drawings, but the illustrated embodiments may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully enable those skilled in the art to understand the scope of this disclosure.

[0122] The embodiments of the present disclosure are not limited to the embodiments shown in the drawings, but include modifications of the configurations formed based on the manufacturing process. Therefore, the regions illustrated in the drawings are schematic in nature, and the shapes of the regions shown in the drawings illustrate specific shapes of the regions, but are not intended to be limiting.

[0123] Referring to Figure 1a, a schematic diagram of the routing design for a Mini-LED single-copper backplane on the far side of the antenna, away from the binding side frame area, is shown in the related art. The Mini-LED driver chip 19 has four channels (i.e., a 4CH IC), meaning that one driver chip 19 controls four Mini-LED light zones 21. Each Mini-LED light zone 21 includes four Mini-LED lamp beads 20 connected in series, and the driver chip 19 is located in the middle of the four Mini-LED light zones 21. To achieve single-copper layer routing for the Mini-LED backplane, the four Mini-LED light zones 21 controlled by one driver chip 19 are located in the same column.

[0124] The signal lines for each column of Mini-LED light zones 21 include a first trace, a power signal line, a data line, a control signal input line, a ground signal line, and a control signal output line. Ultimately, these signal lines extend along the columns of Mini-LED light zones 21 and converge to the binding side frame area. They are then connected to the peripheral circuit board (PCBA) via a flexible printed circuit board (FPC), enabling the peripheral circuit board to input and control each signal line.

[0125] Referring to Figure 1b, which is an enlarged schematic diagram of part A in Figure 1a; the number of rows of Mini-LED light zones 21 in the Mini-LED single-copper layer backplane is exactly divisible by 4. In this way, one driver chip 19 in the display area of ​​the Mini-LED single-copper layer backplane close to the binding side frame area controls the four Mini-LED light zones 21 in the same column, and one driver chip 19 on the far side of the Mini-LED single-copper layer backplane away from the binding side frame area also controls the four Mini-LED light zones 21 in the same column; therefore, the four channels of each driver chip 19 are fully utilized.

[0126] However, for some products, referring to Figures 1c, 1d and 1e, Figure 1c is a schematic diagram of the wiring design of another Mini-LED single copper layer backplane on the far side away from the binding side frame area in the related art; Figure 1d is an enlarged schematic diagram of part B in Figure 1c; Figure 1e is an enlarged schematic diagram of part C in Figure 1c; when the number of rows of the Mini-LED light area 21 cannot be divided by 4, there will be a problem that one driver chip 19 cannot control the four Mini-LED light areas 21 in the same column on the far side of the Mini-LED single copper layer backplane away from the binding side frame area, such as when the number of rows of the Mini-LED light area 21 is divided by 4 with a remainder of 1 When there are only 1 row, 2 rows, or 3 rows remaining, a single driver chip 19 on the remote antenna side of the Mini-LED single copper backplane can only control one Mini-LED light zone 21, two Mini-LED light zones 21, or three Mini-LED light zones 21 in the same column. In this case, at least one channel of the driver chip 19 on the remote antenna side is unused, so the driver chip 19 on the remote antenna side cannot be fully utilized. In Figure 1c, the number of rows of Mini-LED light zones on the Mini-LED single copper backplane is divided by 4, leaving 1 row remaining. Therefore, each driver chip 19 on the remote antenna side only controls one Mini-LED light zone 21. In this case, three channels of each driver chip 19 are unused, and an entire row of driver chips 19 on the remote antenna side (such as the four driver chips 19 in Figure 1c) cannot be fully utilized.

[0127] The more driver chips there are in the Mini-LED single-copper backplane, the higher the cost. Some driver chips cannot be fully utilized, resulting in cost waste.

[0128] In order to solve the problem that some driving chips in the related open technology are not fully utilized, on the first hand, the embodiment of the present disclosure provides a light-emitting backplane, referring to Figure 2, which is a top view schematic diagram of the light-emitting backplane in the embodiment of the present disclosure; Figure 3a is a top view schematic diagram of a light-emitting backplane in the embodiment of the present disclosure; Figure 3b is a structural cross-sectional diagram along the DD' section line in Figure 3a; Figure 4a is a top view schematic diagram of another light-emitting backplane in the implementation of the present disclosure; Figure 4b is a structural cross-sectional diagram along the EE' section line in Figure 4a; wherein, there is a display area 100 and a binding side frame area 101, the binding side frame area 101 is located on one side of the display area 100, the display area 100 includes a first area 102 and a second area 103, the first area 102 and the second area 103 are arranged in sequence along a first direction Y away from the binding side frame area 101; the light-emitting backplane includes: a substrate 1, a plurality of light-emitting units 2, located on one side of the substrate 1, the plurality of light-emitting units 2 are arranged in a first array along the first direction Y and the second direction X; a plurality of driving members 3 are located On the side of the substrate 1 where the light-emitting unit 2 is located, multiple driving elements 3 are arranged in a second array along the first direction Y and the second direction X; the first direction Y and the second direction X intersect; the orthographic projections of the first array and the second array on the substrate 1 do not overlap; the driving element 3 includes m channels, and in the first area 102, each driving element 3 is electrically connected to m light-emitting units 2 at the intersection of row a arranged in sequence along the first direction Y and column b arranged in sequence along the second direction X in the first array, and each driving element 3 is electrically connected to different light-emitting units 2 ; In the second area 103, the total number of rows of the first array arranged along the first direction Y is c, and at least part of the driving elements 3 are electrically connected to c*b light-emitting units 2 at the intersection of c rows arranged sequentially along the first direction Y and b columns arranged sequentially along the second direction X in the first array, and d light-emitting units 2 adjacent to the c*b light-emitting units 2 along the second direction X; 0<c<a, c*b<m, c*b+d=m; a>1, b>0, m>1, 0<d<m, a, b, c, d, m are all integers.

[0129] In some embodiments, referring to FIG. 3 a and FIG. 4 a , the light emitting unit 2 includes at least one lamp bead 20 , and two or more lamp beads 20 in the light emitting unit 2 are connected in series.

[0130] In some embodiments, referring to FIG. 3 a and FIG. 4 a , the lamp beads 20 in the light-emitting unit 2 are arranged in any one of a ring shape, a concentric ring shape, a circle, an S shape, a rectangle and a polygon shape.

[0131] In some embodiments, the lamp bead 20 may be a light-emitting element such as a Mini-LED (Mini Light-Emitting Diode, organic light-emitting diode) or an LED (Light-Emitting Diode, organic light-emitting diode).

[0132] In some embodiments, the driver 3 is a driver chip, which is used to control the brightness change of each light-emitting unit 2. The driver 3 has m channels, and each channel can control the brightness change of one light-emitting unit 2.

[0133] In this embodiment, by electrically connecting each driving element 3 in the first area 102 to the m light-emitting units 2 at the intersection of the a row arranged in sequence along the first direction Y and the b column arranged in sequence along the second direction X in the first array, the m channels of the driving element 3 in the first area 102 can be fully utilized; by electrically connecting at least some of the driving elements 3 in the second area 103 to the c*b light-emitting units 2 at the intersection of the c row arranged in sequence along the first direction Y and the b column arranged in sequence along the second direction X in the first array, and the d light-emitting units 2 adjacent to the c*b light-emitting units 2 along the second direction X; 0<c<a, c*b<m, c*b+d=m; the second area After the driver 3 in 103 is electrically connected to the c*b light-emitting units 2 at the intersection of the c row and b column in the first array, the remaining (mc*b) channels are electrically connected to the d light-emitting units 2 adjacent to the c*b light-emitting units 2 along the second direction X, so that the m channels of at least some of the driver 3 in the second area 103 can be fully utilized, thereby reducing the number of driver components 3 in the second area 103 and reducing the cost of the light-emitting backplane. Moreover, the above-mentioned solution of fully utilizing all channels of at least some of the driver components 3 in the second area 103 only requires reducing the number of driver components 3, has little impact on the process of the light-emitting backplane, and does not affect the reliability of the light-emitting backplane.

[0134] In some embodiments, referring to Figures 3a and 4a, the light-emitting backplane further includes a plurality of first traces 4 and a plurality of groups of second traces 5, which are located on the side of the substrate 1 where the light-emitting units 2 are located, and on the side of the light-emitting units 2 and the driving element 3 close to the substrate 1; the plurality of first traces 4 and the plurality of groups of second traces 5 are arranged on the same layer; the plurality of first traces 4 are arranged in sequence along the second direction X, and the first traces 4 extend along the first direction Y; the plurality of first traces 4 correspond one-to-one to and are electrically connected to the plurality of columns of light-emitting units 2 of the first array arranged in sequence along the second direction X; the plurality of groups of second traces 5 are arranged in sequence along the second direction X, and each group of second traces 5 extends along the first direction Y; the plurality of groups of second traces 5 correspond one-to-one to and are electrically connected to the plurality of columns of driving elements 3 of the second array arranged in sequence along the second direction X.

[0135] In some embodiments, multiple first traces 4 and multiple groups of second traces 5 are respectively routed along the first direction Y to the binding side frame area 101, and are connected to the peripheral circuit board (PCBA) through a flexible circuit board (FPC) in the binding side frame area 101, thereby realizing signal input and control of each trace by the peripheral circuit board.

[0136] 3a and 4a , the lamp bead 20 at one end of the series connection is close to the driver 3 and electrically connected to the channel of the driver 3 , and the lamp bead 20 at the other end of the series connection is close to the first trace 4 and electrically connected to the first trace 4 .

[0137] In some embodiments, the first wiring 4 is used to provide a DC regulated power supply (such as VLED) to the light-emitting unit 2 to provide power for lighting the light-emitting unit 2, and the DC regulated power supply voltage provided by each first wiring 4 is the same. Each driver 3 is used to control the brightness change of each light-emitting unit 2 to which it is electrically connected. Each group of second wirings 5 ​​is electrically connected to a column of driver 3, which is used to provide power signals and control signals for controlling the brightness change of the light-emitting unit 2 to the driver 3 to which it is electrically connected. The driver 3 controls the conduction time of each light-emitting unit 2 to which it is electrically connected in each cycle (i.e., each frame of display). The longer the conduction time, the higher the brightness of the light-emitting unit 2; the shorter the conduction time, the lower the brightness of the light-emitting unit 2, thereby achieving control over the brightness change of the light-emitting unit 2.

[0138] 3 a , a=m, b=1. That is, in the first region 102 , the driving element 3 is electrically connected to m light-emitting units 2 sequentially arranged along the first direction Y.

[0139] In some embodiments, for example, assuming that the first array is 49 rows × 48 columns of light-emitting units 2, and one driver 3 in the first area 102 is electrically connected to four light-emitting units 2 arranged in sequence along the column direction (i.e., the first direction Y), then 49 ÷ 4 = 12, with 1 row remaining. The remaining row is located in the second area 103. The four light-emitting units 2 arranged in sequence along the second direction X in the second area 103 are electrically connected to one driver 3, and a total of 12 drivers 3 are required. Compared to the solution in the related art in which 48 drivers 3 are required for the remaining row of light-emitting units 2 in the second area 103 and a total of 48 columns, the number of drivers 3 can be reduced to 36 in this embodiment. For another example, assuming that the first array consists of 50 rows × 48 columns of light-emitting units 2, and one driver 3 in the first area 102 is electrically connected to four light-emitting units 2 arranged in sequence along the column direction (i.e., the first direction Y), then 50÷4=12, leaving 2 rows. The remaining 2 rows are located in the second area 103. Two light-emitting units 2 arranged in sequence along the first direction Y in the second area 103 and two light-emitting units 2 in the second column adjacent to the two light-emitting units 2 along the second direction X are electrically connected to one driver 3, requiring a total of 24 drivers 3. Compared to the solution in the related art in which 48 drivers 3 are required for the remaining two rows of light-emitting units 2 in the second area 103 and a total of 48 columns, the number of drivers 3 can be reduced to 24 in this embodiment. For another example, assuming that the first array consists of 51 rows and 48 columns of light-emitting units 2, and one driver 3 in the first area 102 is electrically connected to four light-emitting units 2 arranged in sequence along the column direction (i.e., the first direction Y), then 51÷4=12, leaving 3 rows. The remaining 3 rows are located in the second area 103. Three light-emitting units 2 arranged in sequence along the first direction Y in the second area 103 and one light-emitting unit 2 in the second column adjacent to the three light-emitting units 2 along the second direction X are electrically connected to one driver 3, requiring a total of 36 drivers 3. Compared to the solution in the related art in which 48 drivers 3 are required for the remaining 3 rows of light-emitting units 2 in the second area 103 and a total of 48 columns, the number of drivers 3 can be reduced to 12 in this embodiment.

[0140] In some embodiments, referring to FIG3b , a first trace 4 electrically connected to the same column of light-emitting units 2 and a set of second traces 5 electrically connected to a column of driver elements 3 are located on opposite sides of the column of light-emitting units 2 along the second direction X. The orthographic projection of the driver element 3 on the substrate 1 is located between the orthographic projections of two adjacent light-emitting units 2 along the first direction Y. The m channels are electrically connected to different light-emitting units 2 via different first connecting wires 6. The first connecting wires 6 are arranged on the same layer as the first traces 4 and the second traces 5, and their orthographic projections on the substrate 1 do not overlap. This arrangement achieves the distribution of the first traces 4, the second traces 5, and the first connecting wires 6 on a single conductive layer, thus achieving single-conductive-layer wiring for the light-emitting backplane.

[0141] In some embodiments, along the second direction X, the first traces 4 and the second traces 5 are alternately arranged in sequence.

[0142] In some embodiments, referring to Figure 3a, Figure 4a, and Figure 3c are enlarged schematic diagrams of part F in Figure 3a; Figure 3d is an enlarged schematic diagram of part G in Figure 3c; Figure 3e is a top view schematic diagram of another light-emitting backplane in the embodiment of the present disclosure; Figure 3f is an enlarged schematic diagram of part H in Figure 3e; Figure 3g is an enlarged schematic diagram of part I in Figure 3f; Figure 3h is a top view schematic diagram of another light-emitting backplane in the embodiment of the present disclosure; Figure 3i is an enlarged schematic diagram of part J in Figure 3h; in the second area 103, multiple first connecting lines 6 extend from each channel of the driving member 3 to the side of the second area 103 away from the first area 102, and extend to electrically connect to the corresponding light-emitting units 2; the orthographic projections of the multiple first connecting lines 6 on the substrate 1 do not overlap with each other. With such an arrangement, referring to Figures 3a to 3i, when the driver 3 is electrically connected to the (mc) light-emitting units 2 adjacent to the c light-emitting units 2 along the second direction X, the m first connecting wires 6 do not cross each other, and the m first connecting wires 6 have sufficient routing space to be electrically connected to each light-emitting unit 2. Similarly, with such an arrangement, referring to Figure 4a, when the driver 3 is electrically connected to the (mc*b) light-emitting units 2 adjacent to the c*b light-emitting units 2 along the second direction X, the m first connecting wires 6 do not cross each other, and the m first connecting wires 6 have sufficient routing space to be electrically connected to each light-emitting unit 2.

[0143] 3a , 3e , 3h and 4a , in the second area 103 , the orthographic projection of the driving member 3 on the substrate 1 is located between the orthographic projections of two adjacent light emitting units 2 along the second direction X on the substrate 1 .

[0144] In some embodiments, referring to Figures 3a and 4a, within the second region 103, the orthographic projection of the driver 3 on the substrate 1 is located between the first and second light-emitting units 2 adjacent to each other along the second direction X. Referring to Figure 3e, within the second region 103, the orthographic projection of the driver 3 on the substrate 1 is located between the second and third light-emitting units 2 adjacent to each other along the second direction X. In some embodiments, referring to Figures 3a and 3e, within the second region 103, the orthographic projection of the driver 3 on the substrate 1 may also be located between the third and fourth light-emitting units 2 adjacent to each other along the second direction X. Referring to Figure 3h, within the second region 103, the orthographic projection of the driver 3 on the substrate 1 is located between the first and fourth light-emitting units 2 adjacent to each other along the second direction X.

[0145] In some embodiments, referring to Figure 3e, in the second area 103, along the arrangement direction L of the m light-emitting units 2 electrically connected to the driver 3, when m is an even number, the orthographic projection of the driver 3 on the substrate 1 is located between the orthographic projection of the m / 2th light-emitting unit 2 and the m / 2+1th light-emitting unit 2 on the substrate 1; when m is an odd number, the orthographic projection of the driver 3 on the substrate 1 is located between the orthographic projection of the (m-1) / 2th light-emitting unit 2 and the (m-1) / 2+1th light-emitting unit 2 on the substrate 1.

[0146] 3e and 3a , the arrangement direction L of the m light-emitting units 2 electrically connected to the driver 3 can be a straight line; and referring to FIG3h , the arrangement direction L of the m light-emitting units 2 electrically connected to the driver 3 can also be a curved line. Positioning the driver 3 in the middle of the arrangement direction L of the even-numbered light-emitting units 2 electrically connected to it, or near the middle of the arrangement direction L of the odd-numbered light-emitting units 2 electrically connected to it, can shorten the extension length of at least some of the m first connecting lines 6, thereby reducing signal loss on the first connecting lines 6 and improving the display quality of the light-emitting backplane. This can also reduce the wiring cost of the first connecting lines 6, thereby reducing the manufacturing cost and process cost of the light-emitting backplane.

[0147] In some embodiments, referring to Figures 3d, 3g and 3i, the driver 3 also includes a body 30, which is electrically connected to the channel; in the first area 102, the channel is located on a side of the body 30 close to the light-emitting unit 2 to which it is electrically connected, and the second trace 5 is located on a side of the body 30 away from the light-emitting unit 2 to which it is electrically connected; a plurality of first connecting lines 6 extend from each channel of the driver 3 to be electrically connected to each light-emitting unit 2; and the orthographic projections of the plurality of first connecting lines 6 on the substrate 1 do not overlap with each other.

[0148] In some embodiments, referring to Figures 3a, 3e and 3h, in the first area 102, when m is an even number, the orthographic projection of the driving element 3 on the substrate 1 is located between the orthographic projections of the m / 2th light-emitting unit 2 and the m / 2+1th light-emitting unit 2 electrically connected thereto on the substrate 1; when m is an odd number, the orthographic projection of the driving element 3 on the substrate 1 is located between the orthographic projections of the (m-1) / 2th light-emitting unit 2 and the (m-1) / 2+1th light-emitting unit 2 electrically connected thereto on the substrate 1.

[0149] 3a, 3e and 3h, within the first area 102, the m light-emitting units 2 electrically connected to the same driver 3 are arranged in sequence along the first direction Y. The driver 3 is set at the middle position of the even-numbered light-emitting units 2 electrically connected to it in the first direction Y, or the driver 3 is set at a position close to the middle of the odd-numbered light-emitting units 2 electrically connected to it in the first direction Y. This can further shorten the extension length of at least part of the m first connecting lines 6, thereby further reducing the signal loss on the first connecting lines 6 and improving the display quality of the light-emitting backplane; at the same time, it can further reduce the wiring cost of the first connecting lines 6, thereby further reducing the preparation cost and process cost of the light-emitting backplane.

[0150] In some embodiments, referring to FIG. 3j , a schematic diagram illustrating an embodiment of the present disclosure in which individual channels of at least one driver 3 in the second zone are idle is shown. Within the second zone 103 , at least one driver 3 is electrically connected to e light-emitting units 2 arranged sequentially along the first direction Y and f light-emitting units 2 adjacent to the e light-emitting units 2 along the second direction X. e + f < m, 0 < e < m, 0 ≤ f < m, and e and f are integers. This means that due to the limited number of light-emitting units 2 in the first array, it is possible that the channels of the last driver 3 in the second zone 103 may not be fully utilized, such as individual channels being idle.

[0151] In some embodiments, referring to FIG3k, a top view of the arrangement of the wiring in the light-emitting backplane of the embodiment of the present disclosure is shown; FIG3l is a distribution diagram of multiple ports in the driver of the embodiment of the present disclosure; each group of second wirings 5 ​​includes a power signal line 51, a ground signal line 52, a data line 53, a control signal input line 54 and a control signal output line 55; the power signal line 51, the data line 53, the control signal input line 54, the ground signal line 52 and the control signal output line 55 are arranged in sequence along the second direction X; the driver 3 includes m channel output terminals 31, two power signal terminals 32, two ground signal terminals 33, two data signal terminals 34, a control signal input terminal 35 and a control signal output terminal 36; the m channel output terminals are electrically connected to the m first connection lines one by one. 6; the power signal line 51 is electrically connected to the two power signal terminals 32 of each driver 3 in a column of driver elements 3; the data line 53 is electrically connected to the two data signal terminals 34 of each driver 3 in a column of driver elements 3; the ground signal line 52 is electrically connected to the two ground signal terminals 33 of each driver 3 in a column of driver elements 3; along the first direction Y, the control signal input terminal 35 of the previous driver element 3 farther away from the binding side frame area 101 is electrically connected to the control signal output terminal 36 of the next driver element 3 adjacent to it and closer to the binding side frame area 101, the control signal input terminal 35 of the driver element 3 closest to the binding side frame area 101 is electrically connected to the control signal input line 54, and the control signal output terminal 36 of the driver element 3 farthest from the binding side frame area 101 is electrically connected to the control signal output line 55.

[0152] 3k , the signal lines in each group of second routing lines 5 will not cross each other, and each group of second routing lines 5 will not cross each other with the first routing lines 4 and the first connecting lines 6, so that the second routing lines 5, the first routing lines 4 and the first connecting lines 6 can be prepared and formed by the same conductive layer, that is, the light-emitting backplane can realize a single conductive layer wiring scheme.

[0153] In some embodiments, referring to FIG. 31 , m channel output terminals 31 are sequentially arranged at the first end 301 of the body 30; two power signal terminals 32, two ground signal terminals 33, and two data signal terminals 34 are symmetrically distributed at the opposite second end 302 and third end 303 of the body 30; and one control signal input terminal 35 and one control signal output terminal 36 are located at the opposite second end 302 and third end 303 of the body 30, respectively. This arrangement facilitates connecting the driver 3 to the signal lines in each set of second traces 5 and the first connecting lines 6 while preventing crossover between the signal lines and the first connecting lines 6.

[0154] In some embodiments, referring to Figures 3a, 3e, 3h, 3k, and 4a, the widths of the ground signal line 52 and the first trace 4 are both greater than the width of the power signal line 51; the width of the power signal line 51 is greater than the widths of the data line 53, the control signal input line 54, and the control signal output line 55. This arrangement reduces the trace resistance of the ground signal line 52, the first trace 4, and the power signal line 51, thereby reducing signal loss on the first trace 4 and the power signal line 51, while also enabling the ground signal to be quickly connected to ground via the ground signal line 52.

[0155] In some embodiments, the power signal line 51, ground signal line 52, data line 53, control signal input line 54, and control signal output line 55 extend from the display area 100 to the binding side frame area 101, respectively; and the first trace 4 extends from the display area 100 to the binding side frame area 101. In the binding side frame area 101, the aforementioned signal lines and the first trace 4 are connected to the peripheral circuit board (PCBA) via a flexible printed circuit board (FPC), thereby enabling the peripheral circuit board to input and control signals to the signal lines and the first trace 4.

[0156] 4 a , a>1, b>1. That is, in the first region 102 , each driver 3 is electrically connected to at least four light-emitting units 2 at the intersection of two rows and two columns in the first array.

[0157] In some embodiments, for example, assuming that the first array consists of 49 rows and 48 columns of light-emitting units 2, and a driver 3 in the first area 102 is electrically connected to four light-emitting units 2 at the intersection of two rows and two columns in the first array, then 49÷2=24, leaving 1 row. The remaining row is located in the second area 103. The two light-emitting units 2 at the intersection of the remaining row and two columns in the first array in the second area 103 and the two light-emitting units 2 adjacent to the two light-emitting units 2 along the second direction X are electrically connected to one driver 3, requiring a total of 12 drivers 3. Compared to the solution in the related art in which the remaining row of light-emitting units 2 in the second area 103 has a total of 48 columns, two columns are electrically connected to one driver 3, and a total of 24 drivers 3 are required, the number of drivers 3 in this embodiment can be reduced to 12.

[0158] In some embodiments, referring to FIG. 4a , any column of driver elements 3 arranged sequentially along the second direction X is located between two adjacent columns of light-emitting units 2 arranged sequentially along the second direction X. The m channels are electrically connected to different light-emitting units 2 via different first connecting wires 6 . The first connecting wires 6 are located on the side of the first and second traces 4 and 5 facing away from the substrate 1 and on the side of the light-emitting units 2 and driver elements 3 close to the substrate 1. The first connecting wires 6 at least partially overlap with the orthographic projections of the first and second traces 4 and 5 on the substrate 1. This arrangement ensures that the first and second traces 4 and 5 are distributed on two different conductive layers, thereby achieving wiring on two conductive layers of the light-emitting backplane.

[0159] In some embodiments, referring to FIG. 4 a , along the second direction X, any group of second traces 5 is located between two adjacent first traces 4 ; the orthographic projections of the first traces 4 and the corresponding electrically connected column of light emitting units 2 on the substrate 1 at least partially overlap.

[0160] In some embodiments, referring to Figure 4a, in the second area 103, among the c*b light-emitting units 2 at the intersection of the c row and the b column of the first array electrically connected to the driving element 3, when b is an even number, the orthographic projection of the driving element 3 on the substrate 1 is located between the orthographic projections of the light-emitting units 2 in the b / 2th column and the orthographic projections of the light-emitting units 2 in the b / 2+1th column on the substrate 1; when b is an odd number, the orthographic projection of the driving element 3 on the substrate 1 is located between the orthographic projections of the light-emitting units 2 in the (b-1) / 2th column and the orthographic projections of the light-emitting units 2 in the (b-1) / 2+1th column on the substrate 1.

[0161] 4a , within the second region 103 , the driver 3 is disposed at or near the middle of the b-column light-emitting units 2 to which it is electrically connected. This can shorten the extension length of at least some of the m first connecting lines 6 , thereby reducing signal loss on the first connecting lines 6 and improving the display quality of the light-emitting backplane. Furthermore, it can also reduce the wiring cost of the first connecting lines 6 , thereby reducing the preparation cost and process cost of the light-emitting backplane.

[0162] In some embodiments, referring to Figure 4a, in the first area 102, when b is an even number, the orthographic projection of the driving element 3 on the substrate 1 is located between the orthographic projections of the b / 2th column of light-emitting units 2 and the b / 2+1th column of light-emitting units 2 electrically connected thereto on the substrate 1; when b is an odd number, the orthographic projection of the driving element 3 on the substrate 1 is located between the orthographic projections of the (b-1) / 2th column of light-emitting units 2 and the (b-1) / 2+1th column of light-emitting units 2 electrically connected thereto on the substrate 1.

[0163] In some embodiments, referring to Figure 4a, in the first area 102, when a is an even number, the orthographic projection of the driving element 3 on the substrate 1 is located between the orthographic projections of the a / 2th row of light-emitting units 2 and the a / 2+1th row of light-emitting units 2 electrically connected thereto on the substrate 1; when a is an odd number, the orthographic projection of the driving element 3 on the substrate 1 is located between the orthographic projections of the (a-1) / 2th row of light-emitting units 2 and the (a-1) / 2+1th row of light-emitting units 2 electrically connected thereto on the substrate 1.

[0164] 4a , within the first region 102 , a driving element 3 electrically connected to m light-emitting units 2 is located in the middle or near the middle of the orthographic projection area of ​​the light-emitting units 2 in row a and column b in the first array on the substrate 1 . This can further shorten the extension length of at least some of the m first connecting lines 6 , thereby further reducing signal loss on the first connecting lines 6 and improving the display quality of the light-emitting backplane. Furthermore, it can further reduce the wiring cost of the first connecting lines 6 , thereby further reducing the preparation cost and process cost of the light-emitting backplane.

[0165] In some embodiments, within the second region 103, at least one driver 3 is electrically connected to c*b light-emitting units 2 at the intersection of c rows arranged sequentially along the first direction Y and b columns arranged sequentially along the second direction X in the first array, as well as g light-emitting units 2 adjacent to the c*b light-emitting units 2 along the second direction X; c*b+g<m; 0≤g<m; g is an integer. That is, due to the limited number of light-emitting units 2 in the first array, within the second region 103, it is possible that the channels of the last driver 3 may not be fully utilized, such as some channels being idle.

[0166] In some embodiments, referring to Figures 4a, 4c and 4d, Figure 4c is an enlarged schematic diagram of portion K in Figure 4a; Figure 4d is an enlarged schematic diagram of portion M in Figure 4c; each group of second routing lines 5 includes a power signal line 51, b ground signal lines 52, a data line 53, a control signal input line 54 and a control signal output line 55; the b ground signal lines 52 are located on opposite sides of a column of driving elements 3 to which they are electrically connected along the second direction X, and each ground signal line 52 corresponds to a column of light-emitting units 2 and at least partially overlaps with the positive projection of the column of light-emitting units 2 on the substrate 1; the power signal line 51, the data line 53, the control signal input line 54 and the control signal output line 55 are located between two adjacent ground signal lines 52.

[0167] In some embodiments, referring to FIG. 4 a , b=2, there are two ground signal lines 52 .

[0168] In some embodiments, referring to FIG4a and FIG4e, FIG4e is another distribution diagram of multiple ports in the driver of the present disclosure; the driver 3 includes m channel output terminals 31, a power signal terminal 32, b ground signal terminals 33, a data signal terminal 34, a control signal input terminal 35 and a control signal output terminal 36; the m channel output terminals 31 are electrically connected to m first connection lines 6 respectively; the power signal line 51 is electrically connected to the power signal terminal 32 of a column of the driver 3; the data line 53 is electrically connected to the data signal terminal 34 of a column of the driver 3; the b ground signal line 52 corresponds one-to-one to the b ground signal terminals 33 of each driver 3 in the same column of driver 3 and is electrically connected respectively; along the first direction Y, the control signal input terminal 35 of the previous driver 3 farther away from the binding side frame area 101 is electrically connected to the control signal output terminal 36 of the next driver 3 adjacent to it and closer to the binding side frame area 101, the control signal input terminal 35 of the driver 3 closest to the binding side frame area 101 is electrically connected to the control signal input line 54, and the control signal output terminal 36 of the driver 3 farthest from the binding side frame area 101 is electrically connected to the control signal output line 55.

[0169] In some embodiments, referring to FIG. 4 e , the driving member 3 has two ground signal terminals 33 .

[0170] In some embodiments, referring to Figure 4e , the driver 3 further includes a body 30 electrically connected to the channels; m channel output terminals 31 and a power signal terminal 32 are arranged at a first end 301 of the body 30; b ground signal terminals 33, a data signal terminal 34, a control signal input terminal 35, and a control signal output terminal 36 are arranged at a second end 302 of the body 30; the first end 301 and the second end 302 are opposite each other. This arrangement facilitates the connection of the driver 3 to each signal line in each group of second traces 5 and the first connection line 6.

[0171] In some embodiments, referring to Figures 4a, 4b, 4c and 4d, an insulating layer 7 is provided between the first connecting line 6 and the first routing line 4 and the second routing line 5, and the first connecting line 6 is electrically connected to the first routing line 4 through a first via 70 provided in the insulating layer 7; the power signal terminal 32 of each column driving element 3 is electrically connected to the power signal line 51 through a second connecting line 8 and a second via 71 provided in the insulating layer 7; the data signal terminal 34 of each column driving element 3 is electrically connected to the data line 53 through a third connecting line 9 and a third via 72 provided in the insulating layer 7; b=2; a ground signal terminal 33 of each column driving element 3 is electrically connected to a ground signal line 52 through two fourth connecting lines 10, a transfer line 11 and a fourth via 73 provided in the insulating layer 7; another ground signal terminal 33 of each column driving element 3 is electrically connected to another ground signal line 52 through a fifth connecting line 12 and a fifth via 74 provided in the insulating layer 7; along the first direction Y, farther away from the binding side frame The control signal input terminal 35 of the previous driving element 3 in area 101 and the control signal output terminal 36 of the next driving element 3 adjacent to it and closer to the binding side frame area 101 are respectively electrically connected to an intermediate connecting line 14 through a sixth connecting line 13 and a sixth via 75 opened in the insulating layer 7, the control signal input terminal 35 of the driving element 3 closest to the binding side frame area 101 is electrically connected to the control signal input line 54 through a seventh connecting line 15 and a seventh via 76 opened in the insulating layer 7, and the control signal output terminal 36 of the driving element 3 farthest from the binding side frame area 101 is electrically connected to the control signal output line 55 through an eighth connecting line 16 and an eighth via 77 opened in the insulating layer 7; the second connecting line 8, the third connecting line 9, the fourth connecting line 10, the fifth connecting line 12, the sixth connecting line 13, the seventh connecting line 15 and the eighth connecting line 16 are arranged on the same layer as the first connecting line 6; the adapter line 11 and the intermediate connecting line 14 are arranged on the same layer as the first routing line 4 and the second routing line 5.

[0172] 4a, 4b, 4c and 4d, the signal lines in each group of second traces 5 and the first traces 4 are located in the same conductive layer and can be simultaneously prepared and formed through one conductive layer; the first connecting line 6, the second connecting line 8, the third connecting line 9, the fourth connecting line 10, the fifth connecting line 12, the sixth connecting line 13, the seventh connecting line 15 and the eighth connecting line 16 are located in another conductive layer and can be simultaneously prepared and formed through another conductive layer; thereby, the light-emitting backplane can realize a two-conductive layer wiring scheme.

[0173] The light-emitting backplane provided by the embodiment of the present disclosure can fully utilize the m channels of the driver 3 in the first area 102 by electrically connecting each driver 3 in the first area 102 to m light-emitting units 2 at the intersection of row a arranged sequentially along the first direction Y and column b arranged sequentially along the second direction X in the first array; and by electrically connecting at least some of the driver 3 in the second area 103 to c*b light-emitting units 2 at the intersection of row c arranged sequentially along the first direction Y and column b arranged sequentially along the second direction X in the first array, as well as d light-emitting units 2 adjacent to the c*b light-emitting units 2 in the second direction X; 0<c<a, c*b<m, c*b+d=m; After the driver 3 in the second area 103 is electrically connected to the c*b light-emitting units 2 at the intersection of the c row and b column in the first array, the remaining (mc*b) channels are electrically connected to the d light-emitting units 2 adjacent to the c*b light-emitting units 2 along the second direction X, so that the m channels of at least some of the driver 3 in the second area 103 can be fully utilized, thereby reducing the number of driver components 3 in the second area 103 and reducing the cost of the light-emitting backplane. Moreover, the above-mentioned solution of fully utilizing all channels of at least some of the driver components 3 in the second area 103 only requires reducing the number of driver components 3, has little impact on the process of the light-emitting backplane, and does not affect the reliability of the light-emitting backplane.

[0174] In a second aspect, an embodiment of the present disclosure further provides a display device. Referring to FIG5 , it is a schematic cross-sectional view of the structure of a display device in an embodiment of the present disclosure; wherein, the display device includes the light-emitting backplane 17 in the above embodiment.

[0175] The light-emitting back panel 17 can be directly used to display images or videos.

[0176] In some embodiments, the display device further includes a liquid crystal screen 18 , and the light-emitting backplane 17 is located on the back side of the liquid crystal screen 18 . The light-emitting backplane 17 is used to provide backlight for the liquid crystal screen 18 .

[0177] The light-emitting backplane 17 can provide direct backlight for the liquid crystal screen 18 , and the liquid crystal in the liquid crystal screen 18 is deflected under the action of the electric field, thereby realizing the picture display or video display of the display device.

[0178] By adopting the light-emitting backplane in the above embodiment, the cost of the display device is reduced and the reliability of the display device is improved.

[0179] The display device provided in the embodiments of the present disclosure may be any product or component with a display function, such as a Mini-LED panel, a Mini-LED TV, a Mini-LED billboard, an LED panel, an LED TV, an LED billboard, an LCD panel, an LCD TV, an LCD billboard, a monitor, a mobile phone, a navigator, or the like.

[0180] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the present disclosure, and the present disclosure is not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and substance of the present disclosure, and such modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. A light-emitting backplane, comprising a display area and a binding side frame area, wherein the binding side frame area is located at one side of the display area, the display area comprises a first area and a second area, and the first area and the second area are arranged in sequence along a first direction away from the binding side frame area; in, The light-emitting backplane comprises: Base, A plurality of light-emitting units are located on one side of the substrate, and the plurality of light-emitting units are arranged in a first array along the first direction and the second direction; A plurality of driving members are located on a side of the substrate where the light emitting unit is located, and the plurality of driving members are arranged in a second array along the first direction and the second direction; The first direction and the second direction intersect; The orthographic projections of the first array and the second array on the substrate do not overlap; The driving element comprises m channels, and in the first area, each of the driving elements is electrically connected to m light-emitting units at intersections of a row arranged in sequence along the first direction and b columns arranged in sequence along the second direction in the first array, and each of the driving elements is electrically connected to different light-emitting units; In the second area, the total number of rows of the first array arranged along the first direction is c, and at least part of the driving elements are electrically connected to c*b light-emitting units at the intersection of c rows arranged in sequence along the first direction and b columns arranged in sequence along the second direction in the first array, and d light-emitting units adjacent to the c*b light-emitting units along the second direction; 0<c<a, c*b<m, c*b+d=m; a>1, b>0, m>1, 0<d<m, a, b, c, d, m are all integers.

2. The light-emitting backplane according to claim 1, wherein: It also includes a plurality of first wirings and a plurality of groups of second wirings, which are located on the side of the substrate where the light-emitting unit is located, and on a side of the light-emitting unit and the driving element close to the substrate; The plurality of first routing lines and the plurality of groups of second routing lines are arranged on the same layer; The plurality of first routing lines are sequentially arranged along the second direction, and the first routing lines extend along the first direction; The plurality of first wirings correspond one-to-one to and are electrically connected to the plurality of columns of light-emitting units of the first array arranged sequentially along the second direction; The plurality of groups of second routing lines are sequentially arranged along the second direction, and each group of the second routing lines extends along the first direction; The plurality of groups of second wirings correspond one-to-one to and are electrically connected to the plurality of columns of driving elements of the second array arranged sequentially along the second direction.

3. The light-emitting backplane according to claim 2, wherein: a=m,b=1.

4. The light-emitting backplane according to claim 2, wherein: a>1, b>1.

5. The light-emitting backplane according to claim 3, wherein: A first wiring electrically connected to the light-emitting units in the same column and a group of second wiring electrically connected to the driving elements in a column are respectively located at two opposite sides of the light-emitting units in the column along the second direction; The orthographic projection of the driving member on the substrate is located between the orthographic projections of two adjacent light-emitting units along the first direction on the substrate; The m channels are electrically connected to different light-emitting units through different first connecting wires, respectively. The first connecting line is arranged on the same layer as the first routing line and the second routing line, and the orthographic projections of the first connecting line, the first routing line and the second routing line on the substrate do not overlap with each other.

6. The light-emitting backplane according to claim 5, wherein: Along the second direction, the first routing lines and the second routing lines are alternately arranged in sequence.

7. The light-emitting backplane according to claim 4, wherein: The driving elements in any column arranged sequentially along the second direction are located between two adjacent columns of the light-emitting units arranged sequentially along the second direction; The m channels are electrically connected to different light-emitting units through different first connecting wires, respectively. The first connecting line is located on a side of the first and second routing lines away from the substrate and a side of the light-emitting unit and the driving element close to the substrate, and the first connecting line at least partially overlaps with the orthographic projections of the first and second routing lines on the substrate.

8. The light-emitting backplane according to claim 7, wherein: Along the second direction, any group of the second routing lines is located between two adjacent first routing lines; The orthographic projections of a column of the light-emitting units electrically connected to the first wiring and corresponding to it on the substrate at least partially overlap.

9. The light-emitting backplane according to claim 5 or 7, wherein: In the second area, a plurality of the first connecting lines respectively extend from the channels of the driving element to a side of the second area away from the first area, and extend to electrically connect to the corresponding light-emitting units; Orthographic projections of the plurality of first connection lines on the substrate do not overlap with each other.

10. The light-emitting backplane according to claim 3 or 4, wherein: In the second area, the orthographic projection of the driving element on the substrate is located between the orthographic projections of two adjacent light-emitting units along the second direction on the substrate.

11. The light-emitting backplane according to claim 3, wherein: In the second area, along the arrangement direction of the m light-emitting units electrically connected to the driving element, when m is an even number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the m / 2th light-emitting unit and the m / 2+1th light-emitting unit on the substrate; When m is an odd number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the (m-1) / 2th light emitting unit and the orthographic projections of the (m-1) / 2+1th light emitting unit on the substrate.

12. The light-emitting backplane according to claim 4, wherein: In the second area, among the c*b light-emitting units at the intersection of the c row and the b column of the first array to which the driving element is electrically connected, when b is an even number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light-emitting units in the b / 2th column and the orthographic projections of the light-emitting units in the b / 2+1th column on the substrate; When b is an odd number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light emitting units in the (b-1) / 2th column and the orthographic projections of the light emitting units in the (b-1) / 2+1th column on the substrate.

13. The light-emitting back panel according to claim 5, wherein: The driving member further comprises a body, and the body is electrically connected to the channel; In the first area, the channel is located on a side of the body close to the light-emitting unit electrically connected thereto, and the second trace is located on a side of the body away from the light-emitting unit electrically connected thereto; A plurality of the first connecting wires extend from the channels of the driving element to be electrically connected to the light emitting units; Orthographic projections of the plurality of first connection lines on the substrate do not overlap with each other.

14. The light-emitting backplane according to claim 3, wherein: In the first area, when m is an even number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the m / 2th light-emitting unit and the m / 2+1th light-emitting unit electrically connected thereto on the substrate; When m is an odd number, the positive projection of the driving member on the substrate is located at the first The (m-1) / 2th light emitting unit and the (m-1) / 2+1th light emitting unit are between their orthographic projections on the substrate.

15. The light-emitting back panel according to claim 4, wherein: In the first region, when b is an even number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light-emitting units in the b / 2th column and the light-emitting units in the b / 2+1th column electrically connected thereto on the substrate; When b is an odd number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light-emitting units in the (b-1) / 2th column and the light-emitting units in the (b-1) / 2+1th column electrically connected to the driving element on the substrate.

16. The light-emitting back panel according to claim 15, wherein: In the first area, when a is an even number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light-emitting units in the a / 2th row and the light-emitting units in the a / 2+1th row electrically connected thereto on the substrate; When a is an odd number, the orthographic projection of the driving element on the substrate is located between the orthographic projections of the light emitting units in the (a-1) / 2th row and the (a-1) / 2+1th row electrically connected thereto on the substrate.

17. The light-emitting back panel according to claim 3, wherein: In the second area, at least one of the driving elements is electrically connected to e light-emitting units arranged in sequence along the first direction and f light-emitting units adjacent to the e light-emitting units along the second direction; e+f<m, and 0<e<m, 0≤f<m, e and f are both integers.

18. The light-emitting backplane according to claim 4, wherein: In the second area, at least one of the driving elements is electrically connected to c*b light-emitting units at the intersection of c rows arranged in sequence along the first direction and b columns arranged in sequence along the second direction in the first array and g light-emitting units adjacent to the c*b light-emitting units along the second direction; c*b+g<m; 0≤g<m; g is an integer.

19. The light-emitting back panel according to claim 13, wherein: Each group of the second wirings includes a power signal line, a ground signal line, a data line, a control signal input line and a control signal output line; The power signal line, the data line, the control signal input line, the ground signal line and the control signal output line are arranged in sequence along the second direction; The driving element comprises m channel output terminals, two power signal terminals, two ground signal terminals, two data signal terminals, a control signal input terminal and a control signal output terminal; The m channel output ends are electrically connected to the m first connection lines one by one; The power signal line is electrically connected to the two power signal terminals of each of the driving elements in a column of the driving elements; The data line is electrically connected to the two data signal terminals of each of the driving elements in a column of the driving elements; The ground signal line is electrically connected to the two ground signal terminals of each of the driving elements in a column of the driving elements; Along the first direction, the control signal input end of the previous driver element farther away from the binding side frame area is electrically connected to the control signal output end of the next driver element adjacent to it and closer to the binding side frame area, the control signal input end of the driver element closest to the binding side frame area is electrically connected to the control signal input line, and the control signal output end of the driver element farthest from the binding side frame area is electrically connected to the control signal output line.

20. The light-emitting backplane according to claim 19, wherein: The m channel output ends are arranged in sequence at the first end of the body; The two power signal terminals, the two ground signal terminals and the two data signal terminals are symmetrically distributed at the second terminal and the third terminal of the body which are oppositely arranged. The one control signal input terminal and the one control signal output terminal are respectively located at the second end and the third end of the body which are opposite to each other.

21. The light-emitting backplane according to claim 8, wherein: Each group of the second wirings includes a power signal line, b ground signal lines, a data line, a control signal input line and a control signal output line; The b ground signal lines are located at two opposite sides of a column of driving elements to which they are electrically connected along the second direction, and each of the ground signal lines corresponds to a column of light-emitting units and at least partially overlaps with the orthographic projection of the column of light-emitting units on the substrate; The power signal line, the data line, the control signal input line and the control signal output line are located between two adjacent ground signal lines.

22. The light-emitting backplane according to claim 21, wherein: The driving element comprises m channel output terminals, a power signal terminal, b ground signal terminals, a data signal terminal, a control signal input terminal and a control signal output terminal; The m channel output ends are electrically connected to the m first connection lines one by one; The power signal line is electrically connected to the power signal terminals of a column of the driving elements; The data line is electrically connected to the data signal terminals of a column of the driving elements; The b ground signal lines correspond one-to-one to the b ground signal terminals of each of the driving elements in the same column and are electrically connected respectively; Along the first direction, the control signal input end of the previous driver element farther away from the binding side frame area is electrically connected to the control signal output end of the next driver element adjacent to it and closer to the binding side frame area, the control signal input end of the driver element closest to the binding side frame area is electrically connected to the control signal input line, and the control signal output end of the driver element farthest from the binding side frame area is electrically connected to the control signal output line.

23. The light-emitting backplane according to claim 22, wherein: The driving member further comprises a body, and the body is electrically connected to the channel; The m channel output terminals and the one power signal terminal are arranged at the first end of the body; The two ground signal terminals, the one data signal terminal, the one control signal input terminal and the one control signal output terminal are arranged at the second end of the body; The first end and the second end are opposite to each other.

24. The light-emitting backplane according to claim 22, wherein: An insulating layer is provided between the first connecting line and the first routing line and the second routing line. The first connecting line is electrically connected to the first routing line through a first via hole provided in the insulating layer; The power signal end of each column of the driving elements is electrically connected to the power signal line through a second connecting line and a second via hole opened in the insulating layer; The data signal end of each column of the driving elements is electrically connected to the data line through a third connecting line and a third via hole opened in the insulating layer; b=2; one of the ground signal terminals of the driving elements in each column is electrically connected to one of the ground signal lines through two fourth connecting lines, one adapter line and a fourth via hole provided in the insulating layer; Another ground signal terminal of each column of the driving elements is electrically connected to another ground signal line through a fifth connecting line and a fifth via hole opened in the insulating layer; Along the first direction, the control signal input end of the previous driving element farther away from the binding side frame area and the control signal output end of the next driving element adjacent to it and closer to the binding side frame area are respectively electrically connected to an intermediate connecting line through a sixth connecting line and a sixth via hole opened in the insulating layer, and the control signal input end of the driving element closest to the binding side frame area is electrically connected to the control signal input line through a seventh connecting line and a seventh via hole opened in the insulating layer, and the control signal output end of the driving element farthest from the binding side frame area is electrically connected to the control signal input line through a seventh connecting line and a seventh via hole opened in the insulating layer. The control signal output end of one of the driving elements is electrically connected to the control signal output line through an eighth connecting line and an eighth via hole provided in the insulating layer; The second connecting line, the third connecting line, the fourth connecting line, the fifth connecting line, the sixth connecting line, the seventh connecting line and the eighth connecting line are arranged in the same layer as the first connecting line; The adapter line and the intermediate connecting line are arranged on the same layer as the first routing line and the second routing line.

25. The light-emitting backplane according to claim 19 or 21, wherein: The line widths of the ground signal line and the first routing line are both greater than the line width of the power signal line; The line width of the power signal line is greater than the line widths of the data line, the control signal input line, and the control signal output line.

26. The light-emitting backplane according to claim 19 or 21, wherein: The power signal line, the ground signal line, the data line, the control signal input line and the control signal output line are respectively extended from the display area to the binding side frame area; The first wiring extends from the display area to the binding side frame area.

27. The light-emitting backplane according to claim 3 or 4, wherein: The light-emitting unit comprises at least one lamp bead, and two or more of the lamp beads in the light-emitting unit are connected in series; The lamp bead at one end of the series connection is close to the driving member and electrically connected to the channel of the driving member, and the lamp bead at the other end of the series connection is close to the first wiring and electrically connected to the first wiring.

28. The light-emitting backplane according to claim 27, wherein: The lamp beads in the light-emitting unit are arranged in any one of the shapes of a ring, a concentric ring, a circle, an S shape, a rectangle and a polygon.

29. A display device, wherein: A light-emitting backplane comprising any one of claims 1-28.

30. The display device according to claim 29, wherein: It also includes a liquid crystal screen, the light-emitting backplane is located on the back side of the liquid crystal screen, and the light-emitting backplane is used to provide backlight for the liquid crystal screen.

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