Lamp panel and display panel

Abstract

Provided are a lamp panel (10) and a display panel, the lamp panel (10) comprising a plurality of light-emitting units (30). The lamp panel (10) has a plurality of brightness partitions (20), each brightness partition (20) being internally provided with a fixed number of light-emitting units (30). In two brightness partitions (20) which are adjacent in a first direction, the light-emitting units (30) in one brightness partition (20) are not lightened at the same time with the light-emitting units (30) in the other brightness partition (20). In two brightness partitions (20) which are adjacent in a second direction, the light-emitting units (30) in one brightness partition (20) are not lightened at the same time with the light-emitting units(30) in the other brightness partition (20).

Description

Light board and display panel Technical Field

[0001] The present application relates to the field of display technology, and in particular to a light board and a display panel. Background Art

[0002] Mini LED (Mini Light-Emitting Diode) display technology has experienced accelerated development in the past two years and is widely used in high dynamic range (HDR) image sensors and full-screen display applications. Compared to organic light-emitting diode (OLED) displays, Mini LED displays offer advantages in cost, contrast, brightness, and appearance.

[0003] Currently, the light boards in Mini LED display panels are typically driven using the cost-effective Pulse Width Modulation (PWM) drive mode. However, in PWM drive mode, due to excessive instantaneous brightness, the phosphor layer in the Mini LEDs in the light board is prone to regular failure (such as stripe failure) due to scanning conditions. This seriously affects visual quality and reduces the display quality of the Mini LED display panel. This problem needs to be urgently addressed. SUMMARY OF THE INVENTION

[0004] The present application provides a light board and a display panel, which can effectively solve the problems of existing light boards such as excessive instantaneous brightness, easy rule failure, and poor optical effects.

[0005] In a first aspect, the present application provides a light board, which has multiple brightness partitions, each of which is provided with a fixed number of light-emitting units, and the multiple brightness partitions include multiple brightness partitions arranged in sequence in a first direction and multiple brightness partitions arranged in sequence in a second direction, and the first direction and the second direction intersect; in two adjacent brightness partitions in the first direction, the light-emitting units in one brightness partition and the light-emitting units in the other brightness partition are not lit at the same time; in two adjacent brightness partitions in the second direction, the light-emitting units in one brightness partition and the light-emitting units in the other brightness partition are not lit at the same time

[0006] In a second aspect, the present application provides a display panel, comprising the light board described in any one of the above items. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0008] FIG1 is a planar schematic diagram of a light board provided in Example 1 of the present application.

[0009] FIG. 2 is a graph showing the brightness and distance of a single bright-state brightness partition in any direction.

[0010] FIG3 a is a plan view schematically showing a light-emitting unit in each brightness partition of a first brightness partition group corresponding to a first scanning electrode provided in the first embodiment of the present application when the light-emitting unit is in a light-on state.

[0011] FIG3 b is a plan view schematically showing a light-emitting unit in each brightness partition of the second brightness partition group corresponding to the second scan electrode provided in the first embodiment of the present application when the light-emitting unit is in a light-on state.

[0012] FIG4 is a timing control diagram of the first scanning electrode and the second scanning electrode provided in the first embodiment of the present application.

[0013] FIG5 is a schematic diagram of the membrane layer structure of the scanning wiring provided in an embodiment of the present application.

[0014] FIG6 a is a plan view schematically showing a light-emitting unit in each brightness partition of a first brightness partition group corresponding to a first scanning electrode provided in the second embodiment of the present application when the light-emitting unit is in a light-on state.

[0015] FIG6 b is a plan view schematically showing a light-emitting unit in each brightness partition of the second brightness partition group corresponding to the second scan electrode provided in the second embodiment of the present application when the light-emitting unit is in a light-on state.

[0016] FIG6 c is a plan view schematically showing a light-emitting unit in each brightness subarea of ​​the third brightness subarea group corresponding to the third scan electrode provided in the second embodiment of the present application when the light-emitting unit is in a light-on state.

[0017] FIG6 d is a planar schematic diagram of a fourth brightness subarea group corresponding to a fourth scanning electrode provided in the second embodiment of the present application, in which a light-emitting unit in each brightness subarea is in a light-on state.

[0018] FIG6e is a plan view schematically showing a light-emitting unit in each brightness subarea of ​​the fifth brightness subarea group corresponding to the fifth scan electrode provided in the second embodiment of the present application when the light-emitting unit is in a light-on state.

[0019] FIG6 f is a plan view of a sixth brightness subarea group corresponding to the sixth scan electrode provided in the second embodiment of the present application, in which the light-emitting units in each brightness subarea are in a light-on state.

[0020] FIG6g is a plan view schematically showing a light-emitting unit in each brightness subarea of ​​the seventh brightness subarea group corresponding to the seventh scan electrode provided in the second embodiment of the present application when the light-emitting unit is in a light-on state.

[0021] FIG6h is a planar schematic diagram of the eighth brightness subarea group corresponding to the eighth scan electrode provided in the second embodiment of the present application, when the light-emitting units in each brightness subarea are in a lit state.

[0022] FIG. 7 is a timing control diagram of the first to eighth scan electrodes provided in the second embodiment of the present application.

[0023] FIG8 a is a plan view of a first portion of scan electrodes and scan lines provided in the second embodiment of the present application.

[0024] FIG8 b is a plan view of the second portion of the scan line provided in the second embodiment of the present application.

[0025] FIG. 9 a is a schematic diagram of light distribution of a light panel in the related art.

[0026] FIG9 b is a schematic diagram of light distribution of the light panel provided in this application.

[0027] 10a is a planar schematic diagram of the first brightness partition group in the first brightness partition block corresponding to the first scanning electrode provided in the third embodiment of the present application, when the light-emitting units in each brightness partition are in a lit state.

[0028] 10 b is a planar schematic diagram of a light-emitting unit in each brightness partition of the first brightness partition group in the second brightness partition block corresponding to the second scanning electrode provided in the third embodiment of the present application when the light-emitting unit is in a lit state.

[0029] 10c is a planar schematic diagram of the second brightness subarea group in the first brightness subarea block corresponding to the third scanning electrode provided in the third embodiment of the present application, when the light-emitting units in each brightness subarea are in a lit state.

[0030] 10 d is a planar schematic diagram of a second brightness partition group in the second brightness partition block corresponding to the fourth scanning electrode provided in the third embodiment of the present application, when the light-emitting unit in each brightness partition is in a lit state.

[0031] FIG11 is a timing control diagram of the first scanning electrode to the fourth scanning electrode provided in the third embodiment of the present application.

[0032] Figure 12a is a planar schematic diagram of the first brightness partition group corresponding to the first scanning electrode of the light board provided in Example 4 of the present application, when the light-emitting unit in each brightness partition is in the lit state.

[0033] Figure 12b is a planar schematic diagram of the second brightness partition group corresponding to the second scanning electrode of the light board provided in Example 4 of the present application, when the light-emitting unit in each brightness partition is in the lit state.

[0034] Figure 12c is a planar schematic diagram of the third brightness partition group corresponding to the third scanning electrode of the light board provided in Example 4 of the present application, when the light-emitting unit in each brightness partition is in a lit state.

[0035] Description of reference numerals:

[0036] Light board 10; brightness partition 20; light emitting unit 30; scanning electrode 40; first scanning electrode 41; second scanning electrode 42; third scanning electrode 43; fourth scanning electrode 44; fifth scanning electrode 45; sixth scanning electrode 46; seventh scanning electrode 47; eighth scanning electrode 48; scanning line 50; first part 51; second part 52; brightness partition block 60; brightness partition group 70; first brightness partition group 71; second brightness partition group 72; third brightness partition group 73; fourth brightness partition group brightness partition group 74; fifth brightness partition group 75; sixth brightness partition group 76; seventh brightness partition group 77; eighth brightness partition group 78; first brightness partition block M1; second brightness partition block M2; first brightness partition group M11 in the first brightness partition block; first brightness partition group M21 in the second brightness partition block; second brightness partition group M12 in the first brightness partition block; second brightness partition group M22 in the second brightness partition block; first direction X; second direction Y; Modes for Carrying Out the Invention

[0037] In a first aspect, the present application provides a light board, which has multiple brightness partitions, each of which is provided with a fixed number of light-emitting units, and the multiple brightness partitions include multiple brightness partitions arranged in sequence in a first direction and multiple brightness partitions arranged in sequence in a second direction, and the first direction and the second direction intersect; in two adjacent brightness partitions in the first direction, the light-emitting units in one brightness partition and the light-emitting units in the other brightness partition are not lit at the same time; in two adjacent brightness partitions in the second direction, the light-emitting units in one brightness partition and the light-emitting units in the other brightness partition are not lit at the same time

[0038] Optionally, the light board includes a plurality of scanning electrodes, which are electrically connected to the light-emitting units and are used to control the lighting state of the light-emitting units; wherein, in two adjacent brightness partitions in the first direction, the scanning electrode connected to the light-emitting units in one brightness partition is different from the scanning electrode connected to the light-emitting units in the other brightness partition; in two adjacent brightness partitions in the second direction, the scanning electrode connected to the light-emitting units in one brightness partition is different from the scanning electrode connected to the light-emitting units in the other brightness partition; and the timing of the driving signals of the scanning electrodes corresponding to the two adjacent brightness partitions in the first direction is different; the timing of the driving signals of the scanning electrodes corresponding to the two adjacent brightness partitions in the second direction is different.

[0039] Optionally, the number of the scanning electrodes is a, and the number of the brightness partitions is b, wherein each of the scanning electrodes is electrically connected to the light-emitting units in b / a brightness partitions, wherein b≥a≥2, and b / a is an integer.

[0040] Optionally, the light board includes m brightness partition blocks, m≥1, and m is an integer, each of the brightness partition blocks includes n brightness partition groups, n≥2, and n is an integer, and each of the brightness partition groups includes at least one brightness partition; wherein, the light board includes m×n scanning electrodes, and each scanning electrode is electrically connected to the light-emitting unit in each of the brightness partitions in a brightness partition group.

[0041] Optionally, each of the brightness partition blocks includes multiple brightness partition rows and multiple brightness partition columns; wherein, in each of the brightness partition blocks, the scanning electrode corresponding to each of the brightness partition groups is electrically connected to the light-emitting unit in at least one brightness partition in each brightness partition row.

[0042] Optionally, in each brightness partition block, the scanning electrode corresponding to each brightness partition group is electrically connected to a light-emitting unit in at least one brightness partition in each brightness partition column.

[0043] Optionally, m=1, n=2, the scanning electrodes corresponding to one brightness partition group are electrically connected to the light-emitting units in the brightness partitions of odd rows and odd columns and the light-emitting units in the brightness partitions of even rows and even columns, and the scanning electrodes corresponding to the other brightness partition group are electrically connected to the light-emitting units in the brightness partitions of even rows and odd columns and the light-emitting units in the brightness partitions of odd rows and even columns.

[0044] Optionally, m=1, n is an integer greater than 2, and the scanning electrode corresponding to each of the brightness partition groups is electrically connected to a brightness partition in each brightness partition row, and the scanning electrode corresponding to each of the brightness partition groups is electrically connected to a brightness partition in each brightness partition column.

[0045] Optionally, m is an integer greater than 1, and a phase period includes n cycles. In the nth cycle, the light-emitting units in each brightness partition in the nth brightness partition group in the 1st brightness partition block to each brightness partition in the nth brightness partition group in the mth brightness partition block are lit in sequence.

[0046] Optionally, m=2, n=2, the light panel includes a first brightness partition block and a second brightness partition block that are axially symmetrically arranged; wherein the brightness partitions of odd rows and odd columns and the brightness partition blocks of even rows and even columns in the first brightness partition block are the first brightness partition group in the first brightness partition block, and the brightness partitions of even rows and odd columns and the brightness partition blocks of odd rows and even columns in the first brightness partition block are the second brightness partition group in the first brightness partition block; wherein the brightness partitions of odd rows and odd columns and the brightness partition blocks of even rows and even columns in the second brightness partition block are the first brightness partition group in the second brightness partition block, The brightness partitions of even rows and odd columns and the brightness partition blocks of odd rows and even columns in the second brightness partition block are the second brightness partition group in the second brightness partition block; wherein, one phase period includes 2 cycles, in the first cycle, the light-emitting units in each brightness partition in the first brightness partition group in the first brightness partition block and each brightness partition in the first brightness partition group in the second brightness partition block are lit in sequence; thereafter, in the second cycle, the light-emitting units in each brightness partition in the second brightness partition group in the first brightness partition block and each brightness partition in the second brightness partition group in the second brightness partition block are lit in sequence.

[0047] Optionally, one of the brightness partition blocks includes three brightness partition groups, each brightness partition group includes three brightness partition blocks, the nine brightness partition blocks corresponding to the three brightness partition groups form a nine-square grid structure, and the two brightness partitions in each brightness partition group are arranged in the same row, or the two brightness partitions in each brightness partition group are arranged in the same column.

[0048] Optionally, the light board also includes a plurality of scanning lines, and the scanning electrodes are connected to the light-emitting units in the brightness partitions through the scanning lines. The plurality of scanning lines include a first part and a second part, the first part is arranged on the same layer as the scanning electrodes, and the second part is arranged on a different layer from the scanning lines.

[0049] In a second aspect, the present application provides a display panel, comprising the light board described in any one of the above items.

[0050] The present application provides a light board and a display panel, wherein the light board includes a plurality of light-emitting units, and the light board has a plurality of brightness zones, each of which is provided with a fixed number of light-emitting units, and the plurality of brightness zones include a plurality of brightness zones arranged in sequence in a first direction and a plurality of brightness zones arranged in sequence in a second direction, and the first direction and the second direction intersect; in two adjacent brightness zones in the first direction, the light-emitting units in one brightness zone and the light-emitting units in the other brightness zone are not lit at the same time; in two adjacent brightness zones in the second direction, the light-emitting units in one brightness zone and the light-emitting units in the other brightness zone are not lit at the same time. In the lamp board and display panel provided by the present application, since in the two brightness partitions adjacent in the first direction, the light-emitting units in one brightness partition and the light-emitting units in the other brightness partition are not lit at the same time, and in the two brightness partitions adjacent in the second direction, the light-emitting units in one brightness partition and the light-emitting units in the other brightness partition are not lit at the same time, the light-emitting units in the multiple brightness partitions can be lit alternately during actual use of the lamp board. On the one hand, it can improve the problem of instantaneous local energy concentration of the lamp board in the PWM driving mode and suppress the possibility of short-term failure. On the other hand, it can also effectively reduce the probability of regular failure of the lamp board when it is lit for a long time, thereby improving the optical effect of the lamp board and the display panel using the lamp board, and extending the life of the lamp board and the display panel using the lamp board.

[0051] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0052] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, examples of various specific processes and materials are provided in the present application, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials. Each of the following is described in detail. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments.

[0053] Example 1

[0054] Figure 1 is a planar schematic diagram of the lamp board provided in Example 1 of the present application; Figure 2 is a curve diagram of the brightness and distance of a single bright-state brightness partition in any direction; Figure 3a is a planar schematic diagram of the first brightness partition group corresponding to the first scanning electrode provided in Example 1 of the present application, when the light-emitting unit in each brightness partition is in the lit state; Figure 3b is a planar schematic diagram of the second brightness partition group corresponding to the second scanning electrode provided in Example 1 of the present application, when the light-emitting unit in each brightness partition is in the lit state. In combination with Figures 1, 2, 3a and 3b, in a first aspect, embodiment 1 of the present application provides a lamp board 10, wherein the lamp board 10 includes a plurality of light-emitting units 30, and the lamp board 10 has a plurality of brightness partitions 20, each of which is provided with a fixed number of light-emitting units 30, and the plurality of brightness partitions 20 include a plurality of brightness partitions 20 arranged in sequence in a first direction X and a plurality of brightness partitions 20 arranged in sequence in a second direction Y, and the first direction X and the second direction Y intersect; in two adjacent brightness partitions 20 in the first direction X, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not lit at the same time; in two adjacent brightness partitions 20 in the second direction Y, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not lit at the same time.

[0055] During the study, the applicant discovered that, in the PWM drive mode, when the light-emitting units 30 in two adjacent brightness zones 20 in the first direction X or the second direction Y are simultaneously lit, a problem of instantaneous excessive brightness will occur. The applicant further discovered that the relationship between the brightness and distance of the light-emitting units 30 (such as Mini LEDs) in each brightness zone 20 in any direction is shown in FIG2 , where r represents the distance between a light-emitting unit 30 in the central area of ​​a brightness zone 20 and the edge of the brightness zone 20. That is, assuming that the shape of the brightness zone 20 is a square, when a light-emitting unit 30 in the central area of ​​the brightness zone 20 is lit, the brightness of the midpoint of one side of the square is Q1, and the brightness of the endpoint of one side of the square is Q2, and Q2 is much lower than Q1.

[0056] In the lamp board 10 provided in the embodiment of the present application, since in the two adjacent brightness zones 20 in the first direction X, the light-emitting units 30 in one brightness zone 20 and the light-emitting units 30 in the other brightness zone 20 are not lit at the same time, and in the two adjacent brightness zones 20 in the second direction Y, the light-emitting units 30 in one brightness zone 20 and the light-emitting units 30 in the other brightness zone 20 are not lit at the same time, the light-emitting units 30 in the multiple brightness zones 20 of the lamp board 10 can be lit alternately during actual use. On the one hand, it can improve the problem of instantaneous local energy concentration of the lamp board 10 in the PWM driving mode and suppress the possibility of short-term failure. On the other hand, it can also effectively reduce the probability of regular failure of the lamp board 10 when it is lit for a long time, thereby improving the optical effect of the lamp board 10 and the display panel using the lamp board 10, and extending the life of the lamp board 10 and the display panel using the lamp board 10.

[0057] Continuing with reference to Figure 1, in some embodiments of the present application, a plurality of light-emitting units 30 are provided in each of the brightness partitions 20. Specifically, by making each of the brightness partitions 20 include a plurality of light-emitting units 30, the number of the brightness partitions 20 can be reduced, thereby reducing the difficulty of driving the light board 10. When each of the brightness partitions 20 is provided in a one-to-one correspondence with a driver chip, the number of driver chips can be effectively reduced, thereby reducing the production and manufacturing cost of the light board 10; when all of the brightness partitions 20 are provided in correspondence with a driver chip, the design difficulty of the driver chip can be reduced. Of course, the present application does not limit the number of light-emitting units 30 in the brightness partitions 20. In other embodiments of the present application, each of the brightness partitions 20 can be provided with only one light-emitting unit 30.

[0058] FIG4 is a timing control diagram of the first scan electrode and the second scan electrode provided in Example 1 of the present application. Continuing with FIG3a, FIG3b, and FIG4, in some embodiments of the present application, the light panel 10 includes a plurality of scan electrodes 40, each of which is electrically connected to the light-emitting unit 30 and configured to control the lighting state of the light-emitting unit 30. In particular, in two adjacent brightness subareas 20 in the first direction X, the light-emitting units 30 in one brightness subarea 20 are connected to different scan electrodes 40 than the light-emitting units 30 in the other brightness subarea 20. In addition, in two adjacent brightness subareas 20 in the second direction Y, the light-emitting units 30 in one brightness subarea 20 are connected to different scan electrodes 40 than the light-emitting units 30 in the other brightness subarea 20. Furthermore, the timing sequences of the drive signals for the scan electrodes 40 corresponding to the two adjacent brightness subareas 20 in the first direction X are different. Furthermore, the timing sequences of the drive signals for the scan electrodes 40 corresponding to the two adjacent brightness subareas 20 in the second direction Y are different.

[0059] In the lamp board 10 provided in the present application, the plurality of scanning electrodes 40 in the lamp board 10 are electrically connected to the light-emitting units 30 in the brightness partitions 20, and can send a driving signal to the light-emitting units 30 to control the lighting state of the light-emitting units 30. Since the timing of the driving signals of the scanning electrodes 40 corresponding to the two adjacent brightness partitions 20 in the first direction X is different, therefore, when the scanning electrode 40 connected to the light-emitting unit 30 in one of the two adjacent brightness partitions 20 in the first direction X is different from the scanning electrode 40 connected to the light-emitting unit 30 in the other brightness partition 20, it is possible to make one of the two adjacent brightness partitions 20 in the first direction X to be connected to the light-emitting unit 30. The light-emitting units 30 in the brightness partition 20 are not lit at the same time as the light-emitting units 30 in the other brightness partition 20; similarly, since the timing of the driving signals of the scanning electrodes 40 corresponding to the two adjacent brightness partitions 20 in the second direction Y is different, when the scanning electrode 40 connected to the light-emitting units 30 in one brightness partition 20 in the two adjacent brightness partitions 20 in the second direction Y is different from the scanning electrode 40 connected to the light-emitting units 30 in the other brightness partition 20, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 in the two adjacent brightness partitions 20 in the second direction Y can be lit at different times. Furthermore, the lamp board 10 provided in the present application can enable the light-emitting units 30 in two adjacent brightness zones 20 in the first direction X or the second direction Y to be staggered and lit under the control of the driving signals of multiple scanning electrodes 40, thereby improving the optical effect of the lamp board 10 and the display panel using the lamp board 10, and extending the life of the lamp board 10 and the display panel using the lamp board 10.

[0060] In some embodiments of the present application, the number of the scanning electrodes 40 is a, and the number of the brightness partitions 20 is b, wherein each of the scanning electrodes 40 is electrically connected to the light-emitting units 30 in b / a brightness partitions 20, wherein b≥a≥2, and b / a is an integer.

[0061] In the light board 10 provided in the present application, since each scanning electrode 40 is electrically connected to the light-emitting units 30 in b / a brightness subareas 20, each scanning electrode 40 corresponds to the same number of brightness subareas 20, thereby balancing the driving load of the scanning electrodes 40, reducing the design difficulty of the scanning traces 50 corresponding to the scanning electrodes 40, improving the stability of the light board 10, and extending the service life of the light board 10. Optionally, each scanning electrode 40 is electrically connected to the light-emitting units 30 in at least two brightness subareas 20, that is, b / a ≥ 2.

[0062] In some embodiments of the present application, the lamp board 10 includes m brightness partition blocks 60, m≥1, and m is an integer, each brightness partition block 60 includes n brightness partition groups 70, n≥2, and n is an integer, and each brightness partition group 70 includes at least one brightness partition 20; wherein, the lamp board 10 includes m×n scanning electrodes 40, and each scanning electrode 40 is electrically connected to the light-emitting unit 30 in each brightness partition 20 in a brightness partition group 70; wherein, two adjacent brightness partitions 20 in the first direction X belong to two different brightness partition groups 70, respectively, and two adjacent brightness partitions 20 in the second direction Y belong to two different brightness partition groups 70, respectively, one of the first direction X and the second direction Y is a row direction, and the other of the first direction X and the second direction Y is a column direction.

[0063] In the lamp board 10 provided in the present application, when the area of ​​the lamp board 10 is small or the number of the brightness partitions 20 is small or the wiring difficulty of the scanning line 50 corresponding to the scanning electrode 40 is low, the lamp board 10 may not be divided into blocks. At this time, the lamp board 10 only includes one brightness partition block 60, that is, m=1; when the area of ​​the lamp board 10 is large or the number of the brightness partitions 20 is large or the wiring difficulty of the scanning line 50 corresponding to the scanning electrode 40 is high, by dividing the lamp board 10 into blocks, the process difficulty can be effectively reduced and the production yield can be improved. At this time, the lamp board 10 can include multiple brightness partition blocks 60, that is, m is an integer greater than 1. Therefore, the lamp board 10 can be divided into multiple brightness partition blocks 60 that are repeatedly arranged by dividing the lamp board 10 equally. Of course, in other embodiments of the present application, the area, shape, and layout of the brightness partitions 20 of each brightness partition block 60 may be different.

[0064] Continuing with the example of the light panel 10 including multiple brightness partition blocks 60 arranged in a repeated pattern, as previously described, the provision of multiple brightness partition blocks 60 is intended to reduce process complexity and improve production yield, so that the scan traces 50 in each brightness partition block 60 are independent of the scan traces 50 in other brightness partition blocks 60. Accordingly, the scan electrodes 40 corresponding to each brightness partition block 60 should also be different. Based on this, since each scan electrode 40 is electrically connected to the light-emitting unit 30 in each brightness partition 20 within a brightness partition group 70, assuming the number of brightness partition blocks 60 is m, and each brightness partition block 60 includes n brightness partition groups 70 corresponding to independent scan electrodes 40, the number of scan electrodes 40 in the light panel 10 is m×n.

[0065] In addition, in order to enable the light board 10 to satisfy that, in two adjacent brightness zones 20 in the first direction X, the scanning electrode 40 connected to the light-emitting unit 30 in one brightness zone 20 is different from the scanning electrode 40 connected to the light-emitting unit 30 in the other brightness zone 20, and in two adjacent brightness zones 20 in the second direction Y, the scanning electrode 40 connected to the light-emitting unit 30 in one brightness zone 20 is different from the scanning electrode 40 connected to the light-emitting unit 30 in the other brightness zone 20, the two adjacent brightness zones 20 in the first direction X should belong to two different brightness zone groups 70, and the two adjacent brightness zones 20 in the second direction Y should belong to two different brightness zone groups 70.

[0066] In some embodiments of the present application, each of the brightness partition blocks 60 includes multiple brightness partition 20 rows and multiple brightness partition 20 columns; wherein, in each of the brightness partition blocks 60, the scanning electrode 40 corresponding to each of the brightness partition groups 70 is electrically connected to the light-emitting unit 30 in at least one brightness partition 20 in each brightness partition 20 row.

[0067] In the lamp board 10 provided in the present application, since the scanning electrode 40 corresponding to each brightness partition group 70 in each brightness partition block 60 is electrically connected to the light-emitting unit 30 in at least one brightness partition 20 in each brightness partition 20 row, the scanning line 50 corresponding to each scanning electrode 40 can be made as clear as possible in the wiring design, thereby reducing the design difficulty.

[0068] In some embodiments of the present application, the scanning electrode 40 corresponding to each brightness partition group 70 is electrically connected to the light-emitting unit 30 in at least one brightness partition 20 in each brightness partition 20 column.

[0069] In the lamp board 10 provided in the present application, since the scanning electrode 40 corresponding to each of the brightness partition groups 70 is electrically connected to the light-emitting unit 30 in at least one brightness partition 20 in each brightness partition 20 column, the scanning line 50 corresponding to each of the scanning electrodes 40 can be further made clearer in the wiring design, thereby reducing the design difficulty.

[0070] 3a and 3b , in some embodiments of the present application, m=1, n=2, that is, the lamp board 10 includes only one brightness partition block 60, and the brightness partition block 60 includes two brightness partition groups 70, namely a first brightness partition group 71 and a second brightness partition group 72; the lamp board 10 includes two scanning electrodes 40, namely a first scanning electrode 41 and a second scanning electrode 42, and the scanning electrode 40 corresponding to each brightness partition group 70 in the brightness partition block 60 is electrically connected to the light-emitting units 30 in the multiple brightness partitions 20 in each brightness partition 20 row; the scanning electrode 40 corresponding to each brightness partition group 70 in the brightness partition block 60 is electrically connected to the light-emitting units 30 in the multiple brightness partitions 20 in each brightness partition 20 column.

[0071] Continuing with reference to Figures 3a and 3b, the scanning electrodes 40 (i.e., the first scanning electrodes 41) corresponding to one brightness partition group 70 (i.e., the first brightness partition group 71) are electrically connected to the light-emitting units 30 in the brightness partitions 20 of odd rows and odd columns and the light-emitting units 30 in the brightness partitions 20 of even rows and even columns, and the scanning electrodes 40 (i.e., the second scanning electrodes 42) corresponding to the other brightness partition group 70 (i.e., the second brightness partition group 72) are electrically connected to the light-emitting units 30 in the brightness partitions 20 of even rows and odd columns and the light-emitting units 30 in the brightness partitions 20 of odd rows and even columns.

[0072] Continuing with reference to Figures 3a and 3b, the brightness partition block 60 includes 4 rows and 4 columns, totaling 16 brightness partitions 20. The first brightness partition group 71 includes the brightness partitions 20 in the 1st row and 1st column, the 1st row and 3rd column, the 2nd row and 2nd column, the 2nd row and 4th column, the 3rd row and 1st column, the 3rd row and 3rd column, the 4th row and 2nd column, and the 4th row and 4th column. The first scanning electrode 41 is electrically connected to the light-emitting units 30 in the 8 brightness partitions 20 in the first brightness partition group 71; the second brightness partition group 72 includes the brightness partitions 20 in the 1st row and 2nd column, the 1st row and 4th column, the 2nd row and 1st column, the 2nd row and 3rd column, the 3rd row and 2nd column, the 3rd row and 4th column, the 4th row and 1st column, and the 4th row and 3rd column. The second scanning electrode 42 is electrically connected to the light-emitting units 30 in the 8 brightness partitions 20 in the second brightness partition group 72.

[0073] Continuing with FIG4 , within one phase cycle, the light-emitting units 30 in all brightness partitions 20 on the light panel 10 are illuminated once. The one phase cycle includes one cycle, in which the driving signals from the first scanning electrode 41 and the second scanning electrode 42 are sequentially connected to the light-emitting units 30 in each brightness partition 20 in the corresponding first brightness partition group 71 and the light-emitting units 30 in each brightness partition 20 in the second brightness partition group 72. The timing of the driving signal from the second scanning electrode 42 is later than the timing of the driving signal from the first scanning electrode 41. That is, the first scanning electrode 41 and the second scanning electrode 42 are scanned sequentially. This scanning method enables the light-emitting units 30 in each brightness partition 20 in the first brightness partition group 71 to be illuminated before the light-emitting units 30 in each brightness partition 20 in the second brightness partition group 72 are illuminated. This achieves the goal that, in two adjacent brightness partitions 20 in the first direction X, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not illuminated at the same time. In two adjacent brightness subareas 20 in the second direction Y, the light-emitting units 30 in one brightness subarea 20 and the light-emitting units 30 in the other brightness subarea 20 are not lit at the same time.

[0074] Figure 5 is a schematic diagram of the film layer structure of the scanning line provided in an embodiment of the present application. Referring to Figures 3a, 3b and 5, in some embodiments of the present application, the light board 10 also includes a plurality of scanning lines 50, and the scanning electrode 40 is connected to the light-emitting unit 30 in the brightness partition 20 through the scanning line 50. The plurality of scanning lines 50 include a first part 51 and a second part 52. The first part 51 is arranged on the same layer as the scanning electrode 40, and the second part 52 is arranged on a different layer from the scanning line 50.

[0075] In the lamp board 10 provided in the present application, when the scanning line 50 corresponding to one of the scanning electrodes 40 intersects with the scanning line 50 corresponding to another scanning electrode 40 in the first direction X or the second direction Y, the two scanning lines 50 with different extension directions will interfere with each other, thereby increasing the difficulty of wiring design. The present application divides the multiple scanning lines 50 into a first part 51 and a second part 52, wherein the first part 51 is arranged on the same layer as the scanning electrode 40, and the second part 52 is arranged on a different layer from the scanning line 50. This can reduce the number of film layers as much as possible, and at the same time, improve the interference problem between the two scanning lines 50 with different extension directions through the double-layer design of the scanning line 50, thereby reducing the wiring difficulty of the scanning line 50 in the lamp board 10.

[0076] In a second aspect, embodiments of the present application further provide a display panel, comprising any of the above-described light panels 10. Optionally, the display panel comprises the light panel 10 and a liquid crystal cell, wherein the liquid crystal cell comprises a first substrate, a second substrate, and a liquid crystal layer disposed between the first and second substrates.

[0077] Example 2

[0078] Figure 6a is a planar schematic diagram of the first brightness partition group corresponding to the first scanning electrode provided in Example 2 of the present application, when the light-emitting unit in each brightness partition is in the illuminated state; Figure 6b is a planar schematic diagram of the second brightness partition group corresponding to the second scanning electrode provided in Example 2 of the present application, when the light-emitting unit in each brightness partition is in the illuminated state; Figure 6c is a planar schematic diagram of the third brightness partition group corresponding to the third scanning electrode provided in Example 2 of the present application, when the light-emitting unit in each brightness partition is in the illuminated state; Figure 6d is a planar schematic diagram of the fourth brightness partition group corresponding to the fourth scanning electrode provided in Example 2 of the present application, when the light-emitting unit in each brightness partition is in the illuminated state; Figure 6e is a planar schematic diagram of the fifth brightness partition group corresponding to Example 2 of the present application A planar schematic diagram of the light-emitting units in each brightness partition of the fifth brightness partition group corresponding to the scanning electrode when the light-emitting units are in the illuminated state; Figure 6f is a planar schematic diagram of the light-emitting units in each brightness partition of the sixth brightness partition group corresponding to the sixth scanning electrode provided in Example 2 of the present application when the light-emitting units are in the illuminated state; Figure 6g is a planar schematic diagram of the light-emitting units in each brightness partition of the seventh brightness partition group corresponding to the seventh scanning electrode provided in Example 2 of the present application when the light-emitting units are in the illuminated state; Figure 6h is a planar schematic diagram of the light-emitting units in each brightness partition of the eighth brightness partition group corresponding to the eighth scanning electrode provided in Example 2 of the present application when the light-emitting units are in the illuminated state; Figure 7 is a timing control diagram of the first scanning electrode to the eighth scanning electrode provided in Example 2 of the present application.

[0079] In combination with Figures 1, 6a, 6b, 6c, 6d, 6e, 6f, 6g, 6h and 7, in the first aspect, Example 2 of the present application provides a lamp board 10, wherein the lamp board 10 includes a plurality of light-emitting units 30, and the lamp board 10 has a plurality of brightness partitions 20, each of which is provided with a fixed number of light-emitting units 30, and the plurality of brightness partitions 20 include a plurality of brightness partitions 20 arranged in sequence in a first direction X and a plurality of brightness partitions 20 arranged in sequence in a second direction Y, and the first direction X and the second direction Y intersect; in two adjacent brightness partitions 20 in the first direction X, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not lit at the same time; in two adjacent brightness partitions 20 in the second direction Y, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not lit at the same time.

[0080] It should be noted that the structure of the lamp board 10 provided in the second embodiment of the present application is similar to the structure of the lamp board 10 provided in the first embodiment of the present application, and the same parts will not be repeated in the second embodiment of the present application.

[0081] In some embodiments of the present application, the light panel 10 includes a brightness partition block 60, and the brightness partition block 60 includes three or more brightness partition groups 70, that is, m=1, and n is an integer greater than 2. The scanning electrode 40 corresponding to each brightness partition group 70 is electrically connected to one brightness partition 20 in each brightness partition 20 row, and the scanning electrode 40 corresponding to each brightness partition group 70 is electrically connected to one brightness partition 20 in each brightness partition 20 column.

[0082] In the lamp board 10 provided in the embodiment of the present application, since the brightness partition block 60 includes more than three brightness partition groups 70, correspondingly, the number of scanning electrodes 40 corresponding to the brightness partition block 60 is also more than three. That is, the present application can reduce the number of brightness partitions 20 corresponding to the scanning electrodes 40 by performing more detailed group division of the multiple brightness partitions 20 in the brightness partition block 60, reduce the driving load of the scanning electrode 40, and extend the service life of the lamp board 10.

[0083] 6a to 6h, in some embodiments of the present application, the brightness partition block 60 of the light panel 10 includes 8 rows and 8 columns, totaling 64 brightness partitions 20, wherein the brightness partition block 60 includes a first brightness partition group 71, a second brightness partition group 72, a third brightness partition group 73, a fourth brightness partition group 74, a fifth brightness partition group 75, a sixth brightness partition group 76, a seventh brightness partition group 77, and an eighth brightness partition group 78, and the first brightness partition group 71 includes the first row and the first column, the second row and the third column, the third row and the fifth column, the fourth row and the fifth column, and the fifth row and the fifth column. The brightness subarea 20 of the 7th column, the 4th column of the 5th row, the 6th column of the 6th row, the 8th column of the 7th row, and the 2nd column of the 8th row; the second brightness subarea group 72 includes the brightness subarea 20 of the 3rd column of the 1st row, the 5th column of the 2nd row, the 7th column of the 3rd row, the 1st column of the 4th row, the 6th column of the 5th row, the 8th column of the 6th row, the 2nd column of the 7th row, and the 4th column of the 8th row; the third brightness subarea group 73 includes the brightness subarea 2 of the 1st row, the 2nd column, the 4th column of the 2nd row, the 3rd column of the 6th row, the 8th column of the 4th row, the 3rd column of the 5th row, the 5th column of the 6th row, the 7th column of the 7th row, and the 1st column of the 8th row 0; the fourth brightness zone group 74 includes the brightness zones 20 of the 1st row and the 4th column, the 2nd row and the 6th column, the 3rd row and the 8th column, the 4th row and the 2nd column, the 5th row and the 5th column, the 6th row and the 7th column, the 7th row and the 1st column, and the 8th row and the 3rd column; the fifth brightness zone group 75 includes the brightness zones 20 of the 1st row and the 7th column, the 2nd row and the 1st column, the 3rd row and the 3rd column, the 4th row and the 5th column, the 5th row and the 2nd column, the 6th row and the 4th column, the 7th row and the 6th column, and the 8th row and the 8th column; the sixth brightness zone group 76 includes the 1st row and the 5th column, the 2nd row and the 7th column, the 3rd row and the 1st column, the 8th row and the 8th column The brightness partitions of the 4th row and the 3rd column, the 5th row and the 8th column, the 7th row and the 4th column, and the 8th row and the 6th column; the seventh brightness partition group 77 includes the brightness partition 20 of the 1st row and the 8th column, the 2nd row and the 2nd column, the 3rd row and the 4th column, the 4th row and the 6th column, the 5th row and the 1st column, the 6th row and the 3rd column, the 7th row and the 5th column, and the 8th row and the 7th column; the eighth brightness partition group 78 includes the brightness partition 20 of the 1st row and the 6th column, the 2nd row and the 8th column, the 3rd row and the 2nd column, the 4th row and the 4th column, the 5th row and the 7th column, the 6th row and the 1st column, the 7th row and the 3rd column, and the 8th row and the 5th column.

[0084] 6a to 6h, the scanning electrodes 40 in the light panel 10 include a first scanning electrode 41, a second scanning electrode 42, a third scanning electrode 43, a fourth scanning electrode 44, a fifth scanning electrode 45, a sixth scanning electrode 46, a seventh scanning electrode 47, and an eighth scanning electrode 48. The first scanning electrode 41 is electrically connected to the light-emitting units 30 in the eight brightness partitions 20 in the first brightness partition group 71, the second scanning electrode 42 is electrically connected to the light-emitting units 30 in the eight brightness partitions 20 in the second brightness partition group 72, and the third scanning electrode 43 is electrically connected to the light-emitting units 30 in the eight brightness partitions 20 in the third brightness partition group 73. 30 is electrically connected, the fourth scanning electrode 44 is electrically connected to the light-emitting units 30 in the eight brightness partitions 20 in the fourth brightness partition group 74, the fifth scanning electrode 45 is electrically connected to the light-emitting units 30 in the eight brightness partitions 20 in the fifth brightness partition group 75, the sixth scanning electrode 46 is electrically connected to the light-emitting units 30 in the eight brightness partitions 20 in the sixth brightness partition group 76, the seventh scanning electrode 47 is electrically connected to the light-emitting units 30 in the eight brightness partitions 20 in the seventh brightness partition group 77, and the eighth scanning electrode 48 is electrically connected to the light-emitting units 30 in the eight brightness partitions 20 in the eighth brightness partition group 78.

[0085] 7 , in some embodiments of the present application, within one phase cycle, the light-emitting units 30 in all brightness zones 20 on the light board 10 are lit once. Among them, the one phase period includes one cycle, in which the driving signals in the first scanning electrode 41, the second scanning electrode 42, the third scanning electrode 43, the fourth scanning electrode 44, the fifth scanning electrode 45, the sixth scanning electrode 46, the seventh scanning electrode 47, and the eighth scanning electrode 48 are sequentially connected to the corresponding light-emitting units 30 in each brightness partition 20 in the first brightness partition group 71, the light-emitting units 30 in each brightness partition 20 in the second brightness partition group 72, the light-emitting units 30 in each brightness partition 20 in the third brightness partition group 73, the light-emitting units 30 in each brightness partition 20 in the fourth brightness partition group 74, the light-emitting units 30 in each brightness partition 20 in the fifth brightness partition group 75, the light-emitting units 30 in each brightness partition 20 in the sixth brightness partition group 76, the light-emitting units 30 in each brightness partition 20 in the seventh brightness partition group 77, and the light-emitting units 30 in each brightness partition 20 in the eighth brightness partition group 78. The first scanning electrode 41, the second scanning electrode 42, the third scanning electrode 43, the fourth scanning electrode 44, the fifth scanning electrode 45, the sixth scanning electrode 46, the seventh scanning electrode 47, and the eighth scanning electrode 48 are scanned in sequence. This scanning method can make the light-emitting unit 30 in each brightness partition 20 in the first brightness partition group 71, the light-emitting unit 30 in each brightness partition 20 in the second brightness partition group 72, the light-emitting unit 30 in each brightness partition 20 in the third brightness partition group 73, and the light-emitting unit 30 in each brightness partition 20 in the fourth brightness partition group 74 The light-emitting units 30 in the brightness partition 20, the light-emitting units 30 in each brightness partition 20 in the fifth brightness partition group 75, the light-emitting units 30 in each brightness partition 20 in the sixth brightness partition group 76, the light-emitting units 30 in each brightness partition 20 in the seventh brightness partition group 77, and the light-emitting units 30 in each brightness partition 20 in the eighth brightness partition group 78 are lit in sequence, thereby achieving that, in two brightness partitions 20 adjacent in the first direction X, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not lit at the same time; in two brightness partitions 20 adjacent in the second direction Y, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not lit at the same time.

[0086] Figure 8a is a schematic plan view of the first portion of the scan electrodes and scan traces provided in Example 2 of the present application; Figure 8b is a schematic plan view of the second portion of the scan traces provided in Example 2 of the present application. Referring to Figures 8a and 8b , the scan electrodes 40 are connected to the light-emitting units 30 in the brightness subareas 20 via the scan traces 50. The multiple scan traces 50 include a first portion 51 and a second portion 52. The first portion 51 is disposed on the same layer as the scan electrodes 40, while the second portion 52 is disposed on a different layer from the scan traces 50.

[0087] In the lamp board 10 provided in the present application, when the scanning line 50 corresponding to one of the scanning electrodes 40 intersects with the scanning line 50 corresponding to another scanning electrode 40 in the first direction X or the second direction Y, the two scanning lines 50 with different extension directions will interfere with each other, thereby increasing the difficulty of wiring design. The present application divides the multiple scanning lines 50 into a first part 51 and a second part 52, wherein the first part 51 is arranged on the same layer as the scanning electrode 40, and the second part 52 is arranged on a different layer from the scanning line 50. This can reduce the number of film layers as much as possible, and at the same time, improve the interference problem between the two scanning lines 50 with different extension directions through the double-layer design of the scanning line 50, thereby reducing the wiring difficulty of the scanning line 50 in the lamp board 10.

[0088] Figure 9a is a schematic diagram of the light distribution of a light panel in the related art; Figure 9b is a schematic diagram of the light distribution of the light panel provided by the present application. Referring to Figures 9a and 9b, when the total lighting time of the light panel 10 is the same, the light panel 10 provided by the present application has a better light distribution state and a better optical effect.

[0089] In a second aspect, embodiments of the present application further provide a display panel, comprising any of the above-described light panels 10. Optionally, the display panel comprises the light panel 10 and a liquid crystal cell, wherein the liquid crystal cell comprises a first substrate, a second substrate, and a liquid crystal layer disposed between the first and second substrates.

[0090] Example 3

[0091] Figure 10a is a planar schematic diagram of the light-emitting units in each brightness partition of the first brightness partition group in the first brightness partition block corresponding to the first scanning electrode provided in Example 3 of the present application when the light-emitting units are in the illuminated state; Figure 10b is a planar schematic diagram of the light-emitting units in each brightness partition of the first brightness partition group in the second brightness partition block corresponding to the second scanning electrode provided in Example 3 of the present application when the light-emitting units are in the illuminated state; Figure 10c is a planar schematic diagram of the light-emitting units in each brightness partition of the second brightness partition group in the first brightness partition block corresponding to the third scanning electrode provided in Example 3 of the present application when the light-emitting units are in the illuminated state; Figure 10d is a planar schematic diagram of the light-emitting units in each brightness partition of the second brightness partition group in the second brightness partition block corresponding to the fourth scanning electrode provided in Example 3 of the present application when the light-emitting units are in the illuminated state; Figure 11 is a timing control diagram of the first scanning electrode to the fourth scanning electrode provided in Example 3 of the present application.

[0092] 1 , 10a , 10b , 10c , 10d and 11 , in a first aspect, a first embodiment of the present application provides a lamp board 10 , wherein the lamp board 10 includes a plurality of light-emitting units 30 , and the lamp board 10 has a plurality of brightness partitions 20 , each of the brightness partitions 20 being provided with a fixed number of light-emitting units 30 , and the plurality of brightness partitions 20 including a plurality of brightness partitions 20 arranged in sequence in a first direction X and a plurality of brightness partitions 20 arranged in sequence in a second direction Y, wherein the first direction X and the second direction Y intersect; in two adjacent brightness partitions 20 in the first direction X, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not lit at the same time; in two adjacent brightness partitions 20 in the second direction Y, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not lit at the same time.

[0093] It should be noted that the structure of the lamp board 10 provided in the third embodiment of the present application is similar to the structure of the lamp board 10 provided in the first embodiment of the present application, and the same parts will not be repeated in the third embodiment of the present application.

[0094] In some embodiments of the present application, the lamp board 10 includes m brightness partition blocks 60, where m≥1 and m is an integer, each brightness partition block 60 includes n brightness partition groups 70, where n≥2 and n is an integer, and each brightness partition group 70 includes at least one brightness partition 20; wherein the lamp board 10 includes m×n scanning electrodes 40, and each scanning electrode 40 is electrically connected to the light-emitting unit 30 in each brightness partition 20 in a brightness partition group 70; wherein two adjacent brightness partitions 20 in the first direction X belong to two different brightness partition groups 70, and two adjacent brightness partitions 20 in the second direction Y belong to two different brightness partition groups 70, one of the first direction X and the second direction Y is a row direction, and the other of the first direction X and the second direction Y is a column direction, wherein m is an integer greater than 1, that is, in the lamp board 10 provided in the embodiment of the present application, the lamp board 10 includes multiple brightness partition blocks 60 to reduce process difficulty and improve production yield.

[0095] In some embodiments of the present application, m is an integer greater than 1, and one phase period includes n cycles. In the nth cycle, each brightness partition 20 in the nth brightness partition group 70 in the first brightness partition block M1 to each brightness partition 20 in the nth brightness partition group 70 in the mth brightness partition block 60 are lit in sequence.

[0096] The light board 10 provided in the present application can avoid as much as possible the problem of reduced optical effect of the light board 10 caused by setting multiple brightness partition groups 70 by lighting up the light-emitting units 30 in each brightness partition 20 in the n-th brightness partition group 70 in the 1st brightness partition block M1 to the light-emitting units 30 in each brightness partition 20 in the n-th brightness partition group 70 in the m-th brightness partition block 60 in sequence in the n-th cycle.

[0097] Continuing to refer to Figures 10a, 10b, 10c, 10d and 11, in some embodiments of the present application, m=2, n=2, the light panel 10 includes a first brightness partition block M1 and a second brightness partition block M2 that are axially symmetrically arranged; wherein the brightness partitions 20 of odd rows and odd columns and the brightness partition blocks 60 of even rows and even columns in the first brightness partition block M1 are the first brightness partition group M11 in the first brightness partition block M1, and the brightness partitions 20 of even rows and odd columns and the brightness partition blocks 60 of odd rows and even columns in the first brightness partition block M1 are the second brightness partition group M12 in the first brightness partition block M1; wherein the brightness partitions 20 of odd rows and odd columns and the brightness partition blocks 60 of even rows and even columns in the second brightness partition block M2 are the second brightness partition group M11 in the second brightness partition block M1. 2, the brightness partitions 20 in the even rows and odd columns and the brightness partition blocks 60 in the odd rows and even columns in the second brightness partition block M2 are the second brightness partition group 70 in the second brightness partition block M2; wherein, one phase period includes two cycles, in the first cycle, the light-emitting units 30 in each brightness partition 20 in the first brightness partition group M11 in the first brightness partition block M1 and each brightness partition 20 in the first brightness partition group M21 in the second brightness partition block M2 are sequentially illuminated; thereafter, in the second cycle, the light-emitting units 30 in each brightness partition 20 in the second brightness partition group M12 in the first brightness partition block M1 and each brightness partition 20 in the second brightness partition group M22 in the second brightness partition block M2 are sequentially illuminated. Of course, in other embodiments of the present application, m can also be 3, 4, 5, 6, etc.; n can also be 3, 4, 5, 6, 7, 8, etc.

[0098] Continuing with reference to Figures 10a, 10b, 10c, 10d and 11, in some embodiments of the present application, the light board 10 includes a plurality of scanning electrodes 40, and the plurality of scanning electrodes 40 include a first scanning electrode 41, a second scanning electrode 42, a third scanning electrode 43 and a fourth scanning electrode 44, the first scanning electrode 41 being electrically connected to the light-emitting unit 30 in each brightness partition 20 in the first brightness partition group M11 in the first brightness partition block M1; the second scanning electrode 42 being electrically connected to the light-emitting unit 30 in each brightness partition 20 in the first brightness partition group M21 in the second brightness partition block M2; the third scanning electrode 43 being electrically connected to the light-emitting unit 30 in each brightness partition 20 in the second brightness partition group M12 in the first brightness partition block M1; and the fourth scanning electrode 44 being electrically connected to the light-emitting unit 30 in each brightness partition 20 in the second brightness partition group M22 in the second brightness partition block M2.

[0099] In a second aspect, embodiments of the present application further provide a display panel, comprising any of the above-described light panels 10. Optionally, the display panel comprises the light panel 10 and a liquid crystal cell, wherein the liquid crystal cell comprises a first substrate, a second substrate, and a liquid crystal layer disposed between the first and second substrates.

[0100] Example 4

[0101] Figure 12a is a planar schematic diagram of the first brightness zone group corresponding to the first scanning electrode of the lamp board provided in Example 4 of the present application, when the light-emitting units in each brightness zone are in the illuminated state; Figure 12b is a planar schematic diagram of the second brightness zone group corresponding to the second scanning electrode of the lamp board provided in Example 4 of the present application, when the light-emitting units in each brightness zone are in the illuminated state; Figure 12c is a planar schematic diagram of the third brightness zone group corresponding to the third scanning electrode of the lamp board provided in Example 4 of the present application, when the light-emitting units in each brightness zone are in the illuminated state.

[0102] In combination with Figures 1, 12a, 12b, and 12c, in a first aspect, embodiment 1 of the present application provides a lamp board 10, wherein the lamp board 10 includes a plurality of light-emitting units 30, and the lamp board 10 has a plurality of brightness partitions 20, each of which is provided with a fixed number of light-emitting units 30, and the plurality of brightness partitions 20 include a plurality of brightness partitions 20 arranged in sequence in a first direction X and a plurality of brightness partitions 20 arranged in sequence in a second direction Y, and the first direction X and the second direction Y intersect; in two adjacent brightness partitions 20 in the first direction X, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not lit at the same time; in two adjacent brightness partitions 20 in the second direction Y, the light-emitting units 30 in one brightness partition 20 and the light-emitting units 30 in the other brightness partition 20 are not lit at the same time.

[0103] It should be noted that the structure of the lamp board 10 provided in the fourth embodiment of the present application is similar to the structure of the lamp board 10 provided in the first embodiment of the present application, and the fourth embodiment of the present application will not repeat the same parts.

[0104] In some embodiments of the present application, one of the brightness partition blocks 60 includes three brightness partition groups 70, each brightness partition group 70 includes three brightness partitions 20, and the nine brightness partition blocks 60 corresponding to the three brightness partition groups 70 form a nine-square grid structure, and the two brightness partitions 20 in each brightness partition group 70 are arranged in the same row, or the two brightness partitions 20 in each brightness partition group 70 are arranged in the same column.

[0105] In the lamp board 10 provided by the present application, when the number of the brightness zones 20 is an odd number, the present application can ensure that the two adjacent brightness zones 20 in the first direction X belong to two different brightness zone groups 70 respectively, and the two adjacent brightness zones 20 in the second direction Y belong to two different brightness zone groups 70 respectively, by adjusting the number of scanning electrodes 40 and the distribution state of the brightness zone block 60 group, so that each of the scanning electrodes 40 still corresponds to the same number of brightness zones 20, thereby ensuring the optical effect of the lamp board 10.

[0106] 12a, 12b and 12c, the first brightness partition group 71 includes brightness partitions 20 in the 1st row and 1st column, the 2nd row and 2nd column, and the 3rd row and 1st column; the second brightness partition group 72 includes brightness partitions 20 in the 1st row and 2nd column, the 2nd row and 3rd column, and the 3rd row and 2nd column; the third brightness partition group 73 includes brightness partitions 20 in the 1st row and 3rd column, the 2nd row and 1st column, and the 3rd row and 2nd column; the first scanning electrode 41 is electrically connected to the light-emitting units 30 in the three brightness partitions 20 in the first brightness partition group 71; the second scanning electrode 42 is electrically connected to the light-emitting units 30 in the three brightness partitions 20 in the second brightness partition group 72; and the third scanning electrode 43 is electrically connected to the light-emitting units 30 in the three brightness partitions 20 in the third brightness partition group 73.

[0107] It should be noted that Figures 12a, 12b, and 12c respectively illustrate the cases where two brightness sub-zones 20 in the first brightness sub-zone group 71, two brightness sub-zones 20 in the second brightness sub-zone group 72, and two brightness sub-zones 20 in the third brightness sub-zone group 73 are arranged in the same column. However, in other embodiments of the present application, the two brightness sub-zones 20 in the first brightness sub-zone group 71, the two brightness sub-zones 20 in the second brightness sub-zone group 72, and the two brightness sub-zones 20 in the third brightness sub-zone group 73 may be arranged in the same row. The principles of these arrangements are similar to those of Figures 12a, 12b, and 12c, and will not be further described herein.

[0108] In a second aspect, embodiments of the present application further provide a display panel, comprising any of the above-described light panels 10. Optionally, the display panel comprises the light panel 10 and a liquid crystal cell, wherein the liquid crystal cell comprises a first substrate, a second substrate, and a liquid crystal layer disposed between the first and second substrates.

[0109] In summary, the present application provides a light board and a display panel, the light board includes multiple light-emitting units, the light board has multiple brightness zones, a fixed number of light-emitting units are arranged in each brightness zone, the multiple brightness zones include multiple brightness zones arranged in sequence in a first direction and multiple brightness zones arranged in sequence in a second direction, the first direction and the second direction intersect; in two adjacent brightness zones in the first direction, the light-emitting units in one brightness zone and the light-emitting units in the other brightness zone are not lit at the same time; in two adjacent brightness zones in the second direction, the light-emitting units in one brightness zone and the light-emitting units in the other brightness zone are not lit at the same time. In the lamp board and display panel provided by the present application, since in two brightness partitions adjacent in the first direction, the light-emitting units in one brightness partition and the light-emitting units in the other brightness partition are not lit at the same time, and in two brightness partitions adjacent in the second direction, the light-emitting units in one brightness partition and the light-emitting units in the other brightness partition are not lit at the same time, the light-emitting units in multiple brightness partitions of the lamp board can be lit alternately during actual use. On the one hand, it can improve the problem of instantaneous local energy concentration of the lamp board in the PWM driving mode and suppress the possibility of short-term failure. On the other hand, it can also effectively reduce the probability of regular failure of the lamp board when it is lit for a long time, thereby improving the optical effect of the lamp board and the display panel using the lamp board, and extending the life of the lamp board and the display panel using the lamp board.

[0110] The above is a detailed introduction to a lamp board and display panel provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A light board, wherein, The lamp board has multiple brightness zones, and a fixed number of light-emitting units are arranged in each brightness zone. The multiple brightness zones include multiple brightness zones arranged in sequence in a first direction and multiple brightness zones arranged in sequence in a second direction, and the first direction intersects the second direction; Among two adjacent brightness zones in the first direction, the light-emitting units in one brightness zone and the light-emitting units in the other brightness zone are not lit simultaneously; Among two adjacent brightness zones in the second direction, the light-emitting units in one brightness zone and the light-emitting units in the other brightness zone are not lit simultaneously.

2. The light board according to claim 1, wherein The lamp board includes multiple scanning electrodes, and the scanning electrodes are electrically connected to the light-emitting units for controlling the lighting states of the light-emitting units; wherein, Among two adjacent brightness zones in the first direction, the scanning electrodes connected to the light-emitting units in one brightness zone are different from the scanning electrodes connected to the light-emitting units in the other brightness zone; Among two adjacent brightness zones in the second direction, the scanning electrodes connected to the light-emitting units in one brightness zone are different from the scanning electrodes connected to the light-emitting units in the other brightness zone; And the timings of the driving signals of the scanning electrodes corresponding to two adjacent brightness zones in the first direction are different; the timings of the driving signals of the scanning electrodes corresponding to two adjacent brightness zones in the second direction are different.

3. The light board according to claim 2, wherein, The number of the scanning electrodes is a, and the number of the brightness zones is b, wherein each scanning electrode is electrically connected to the light-emitting units in b / a brightness zones, where b≥a≥2 and b / a is an integer.

4. The light board according to claim 2, wherein The lamp board includes m brightness sub-blocks, m≥1 and m is an integer, each brightness sub-block includes n brightness zone groups, n≥2 and n is an integer, and each brightness zone group includes at least one brightness zone; Wherein, the lamp board includes m×n scanning electrodes, and each scanning electrode is electrically connected to the light-emitting units in each brightness zone in one brightness zone group.

5. The light board according to claim 4, wherein, Each brightness sub-block includes multiple brightness zone rows and multiple brightness zone columns; Wherein, in each brightness sub-block, the scanning electrodes corresponding to each brightness zone group are electrically connected to the light-emitting units in at least one brightness zone in each brightness zone row.

6. The light board according to claim 5, wherein, In each brightness sub-block, the scanning electrodes corresponding to each brightness zone group are electrically connected to the light-emitting units in at least one brightness zone in each brightness zone column.

7. The light board according to claim 6, wherein m = 1, n = 2. The scanning electrodes corresponding to one brightness zone group are electrically connected to the light-emitting units in the brightness zones of odd rows and odd columns and the light-emitting units in the brightness zones of even rows and even columns, and the scanning electrodes corresponding to the other brightness zone group are electrically connected to the light-emitting units in the brightness zones of even rows and odd columns and the light-emitting units in the brightness zones of odd rows and even columns.

8. The light board according to claim 6, wherein, m = 1, n is an integer greater than 2, and the scanning electrodes corresponding to each group of luminance partitions are electrically connected to the light-emitting units in one luminance partition in each row of luminance partitions, and the scanning electrodes corresponding to each group of luminance partitions are electrically connected to the light-emitting units in one luminance partition in each column of luminance partitions.

9. The light board according to claim 4, wherein, m is an integer greater than 1. One phase period includes n cycles. In the nth cycle, each luminance partition in the nth group of luminance partitions in the first luminance block is sequentially lit to each luminance partition in the nth group of luminance partitions in the mth luminance block.

10. The light board according to claim 9, wherein, m = 2, n = 2. The lamp board includes a first luminance block and a second luminance block arranged axially symmetrically. Among them, the luminance partitions in the odd rows and odd columns and the luminance partitions in the even rows and even columns in the first luminance block are the first group of luminance partitions in the first luminance block, and the luminance partitions in the even rows and odd columns and the luminance partitions in the odd rows and even columns in the first luminance block are the second group of luminance partitions in the first luminance block. Among them, the luminance partitions in the odd rows and odd columns and the luminance partitions in the even rows and even columns in the second luminance block are the first group of luminance partitions in the second luminance block, and the luminance partitions in the even rows and odd columns and the luminance partitions in the odd rows and even columns in the second luminance block are the second group of luminance partitions in the second luminance block. Among them, one phase period includes 2 cycles. In the first cycle, each luminance partition in the first group of luminance partitions in the first luminance block and each luminance partition in the first group of luminance partitions in the second luminance block are sequentially lit; then, In the second cycle, each luminance partition in the second group of luminance partitions in the first luminance block and each luminance partition in the second group of luminance partitions in the second luminance block are sequentially lit.

11. The light board according to claim 4, wherein, One of the luminance blocks includes three groups of luminance partitions. Each group of luminance partitions includes three luminance partitions. The nine luminance partitions corresponding to the three groups of luminance partitions form a nine-square grid structure, and two luminance partitions in each group of luminance partitions are arranged in the same row, or two luminance partitions in each group of luminance partitions are arranged in the same column.

12. The light board according to claim 2, wherein, The lamp board further includes a plurality of scanning traces. The scanning electrodes are connected to the light-emitting units in the luminance partitions through the scanning traces. The plurality of scanning traces include a first part and a second part. The first part is arranged on the same layer as the scanning electrodes, and the second part is arranged on a different layer from the scanning traces.

13. A display panel, wherein, The display panel includes a lamp board. The lamp board has a plurality of luminance partitions. A fixed number of light-emitting units are arranged in each luminance partition. The plurality of luminance partitions include a plurality of luminance partitions arranged in sequence in a first direction and a plurality of luminance partitions arranged in sequence in a second direction. The first direction and the second direction intersect. Among two adjacent luminance partitions in the first direction, the light-emitting units in one luminance partition and the light-emitting units in the other luminance partition are not lit simultaneously. Among two adjacent brightness partitions in the second direction, the light-emitting units in one brightness partition and the light-emitting units in the other brightness partition are not lit simultaneously.

14. The display panel according to claim 13, wherein, The lamp board includes a plurality of scan electrodes, which are electrically connected to the light-emitting units and used to control the lighting states of the light-emitting units; wherein, Among two adjacent brightness partitions in the first direction, the scan electrodes connected to the light-emitting units in one brightness partition are different from the scan electrodes connected to the light-emitting units in the other brightness partition; Among two adjacent brightness partitions in the second direction, the scan electrodes connected to the light-emitting units in one brightness partition are different from the scan electrodes connected to the light-emitting units in the other brightness partition; And the timings of the driving signals of the scan electrodes corresponding to two adjacent brightness partitions in the first direction are different; the timings of the driving signals of the scan electrodes corresponding to two adjacent brightness partitions in the second direction are different.

15. The display panel according to claim 14, wherein, The number of the scan electrodes is a, and the number of the brightness partitions is b, wherein each scan electrode is electrically connected to the light-emitting units in b / a brightness partitions, where b≥a≥2 and b / a is an integer.

16. The display panel according to claim 14, wherein, The lamp board includes m brightness sub-blocks, m≥1 and m is an integer, each brightness sub-block includes n brightness partition groups, n≥2 and n is an integer, and each brightness partition group includes at least one brightness partition; Wherein, the lamp board includes m×n scan electrodes, and each scan electrode is electrically connected to the light-emitting units in each brightness partition in one brightness partition group.

17. The display panel according to claim 16, wherein, Each brightness sub-block includes a plurality of brightness partition rows and a plurality of brightness partition columns; Wherein, in each brightness sub-block, the scan electrodes corresponding to each brightness partition group are electrically connected to the light-emitting units in at least one brightness partition in each brightness partition row; Wherein, in each brightness sub-block, the scan electrodes corresponding to each brightness partition group are electrically connected to the light-emitting units in at least one brightness partition in each brightness partition column.

18. The display panel according to claim 16, wherein, m is an integer greater than 1, one phase period includes n cycles, and in the nth cycle, each brightness partition in the nth brightness partition group in the first brightness sub-block to each brightness partition in the nth brightness partition group in the mth brightness sub-block is lit in sequence.

19. The display panel according to claim 16, wherein, One of the brightness sub-blocks includes three brightness partition groups, each brightness partition group includes three brightness partitions, and the nine brightness partitions corresponding to the three brightness partition groups form a nine-square grid structure, and two brightness partitions in each brightness partition group are arranged in the same row, or two brightness partitions in each brightness partition group are arranged in the same column.

20. The display panel according to claim 14, wherein The lamp board further includes a plurality of scan traces, the scan electrodes are connected to the light-emitting units in the brightness partitions through the scan traces, the plurality of scan traces include a first part and a second part, the first part is arranged on the same layer as the scan electrodes, and the second part is arranged on a different layer from the scan traces.

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