Light panel and display device

Abstract

Embodiments of the present application disclose a lamp plate and a display device, and relate to the technical field of display. The lamp plate comprises a substrate, a first light-emitting group, a driving chip, a power supply wiring group and a bridging structure. The first light-emitting group comprises a plurality of first light-emitting units and a plurality of second light-emitting units. The first light-emitting units are connected through the first bridging structure and the first power supply wiring group, and the second light-emitting units are connected through the second bridging structure and the second power supply wiring group. The second light-emitting units and the first light-emitting units are arranged at intervals along a second direction to form a first wiring channel. The first power supply wiring group and the second power supply wiring group are arranged at least in the first wiring channel. Along the second direction, the first bridging structure is arranged on a side of the first light-emitting unit close to the second light-emitting unit, and / or along the second direction, the second bridging structure is arranged on a side of the second light-emitting unit close to the first light-emitting unit. Embodiments of the present application can improve the convenience of connection between the bridging structure and the power supply wiring group.

Description

Technical Field

[0001] Embodiments of this application relate to the technical field of backlighting, and more particularly to a lamp panel and a display device. Background Technology

[0002] Display devices typically include display modules, which are capable of displaying image information. The display module may include a backlight panel, which serves as the light source for the display module.

[0003] The lamp board may include a substrate and multiple light-emitting units, which are disposed on the substrate. The lamp board may also include power traces and bridging structures, which are disposed on the substrate. The power traces are connected to the light-emitting units through the bridging structures, and the power traces are used to supply power to the light-emitting units.

[0004] The light-emitting unit comprises multiple light-emitting chips, at least two of which emit light of different colors, thereby improving the color gamut of the display module. However, a large number of light-emitting chips increases the number of traces on the substrate, making the substrate trace design very complex. Utility Model Content

[0005] Embodiments of this application provide a lamp board and a display device that help reduce the complexity of wiring on the substrate.

[0006] On one hand, embodiments of this application provide a light panel. The light panel includes a substrate, a first light-emitting group, a first driving chip, a second driving chip, a first power supply line group, a second power supply line group, a first bridging structure, and a second bridging structure. The first light-emitting group is disposed on the substrate and includes a plurality of first light-emitting units and a plurality of second light-emitting units. The first driving chip is disposed on the substrate and connected to the plurality of first light-emitting units, and is used to drive the plurality of first light-emitting units to emit light. The second driving chip is disposed on the substrate and connected to the plurality of second light-emitting units, and is used to drive the plurality of second light-emitting units to emit light. The first power supply line group is disposed on the substrate. The second power supply line group is disposed on the substrate. The first bridging structure is disposed on the substrate, and the plurality of first light-emitting units are connected to the first power supply line group through the first bridging structure. The second bridging structure is disposed on the substrate, and the plurality of second light-emitting units are connected to the second power supply line group through the second bridging structure. The plurality of first light-emitting units are arranged in multiple rows along a first direction and in multiple columns along a second direction, the first direction and the second direction being perpendicular. The first light-emitting unit includes a plurality of first light-emitting chips, at least two of the plurality of first light-emitting chips emitting light of different colors. Multiple second light-emitting units are spaced apart from the first light-emitting unit along a second direction to form a first wiring channel between them. The multiple second light-emitting units are arranged in multiple rows along the first direction and multiple columns along the second direction. Each second light-emitting unit includes multiple second light-emitting chips, at least two of which emit light of different colors. A first power supply wiring group and a second power supply wiring group are at least disposed within the first wiring channel. Along the second direction, a first bridging structure is disposed on the side of the first light-emitting unit closest to the second light-emitting unit, and / or, along the second direction, a second bridging structure is disposed on the side of the second light-emitting unit closest to the first light-emitting unit.

[0007] In the embodiments of this application, a plurality of second light-emitting units and a plurality of first light-emitting units are spaced apart along a second direction to form a first wiring channel, and a first power wiring group and a second power wiring group are at least disposed within the first wiring channel.

[0008] In this way, when the first bridging structure is disposed along the second direction on the side of the first light-emitting unit close to the second light-emitting unit, the distance between the first bridging structure and the first power supply trace group can be smaller, so that the first bridging structure does not need to be connected to the power supply trace in the first power supply trace group through a long trace, which improves the connection convenience between the two and helps to reduce the complexity of the traces on the substrate.

[0009] Furthermore, when the second bridging structure is disposed along the second direction on the side of the second light-emitting unit close to the first light-emitting unit, the distance between the second bridging structure and the second power supply trace group can be smaller, so that the second bridging structure does not need to be connected through long traces and power supply traces in the second power supply trace group, which improves the connection convenience between the two and helps to reduce the complexity of the traces on the substrate.

[0010] Furthermore, the first bridging structure does not require excessively long traces to connect with the first power supply trace group, thus reducing the space occupied by the connection lines between the first bridging structure and the first power supply trace group on the substrate. Similarly, the second bridging structure does not require excessively long traces to connect with the second power supply trace group, further reducing the space occupied by the connection lines between the second bridging structure and the second power supply trace group on the substrate.

[0011] In this way, there is no need to reduce the width of the power traces in the first power trace group and the second power trace group within the first trace channel. In fact, if there is enough space, the width of the power traces in the first power trace group and the second power trace group within the first trace channel can be increased. This reduces the voltage drop of the power traces in the first power trace group and the second power trace group within the first trace channel, improving the stability and reliability of the first power trace group supplying power to the multiple first light-emitting chips in the first light-emitting unit, as well as the stability and reliability of the second power trace group supplying power to the multiple second light-emitting chips in the second light-emitting unit.

[0012] In some possible implementations, the first bridging structure and the second bridging structure are spaced apart along a first direction within the first wiring channel.

[0013] The first bridging structure and the second bridging structure are disposed within the first trace channel, which can reduce the distance between the first bridging structure and the power traces in the first power trace group, as well as the distance between the second bridging structure and the power traces in the second power trace group. Along the first direction, the first bridging structure and the second bridging structure are spaced apart within the first trace channel, which can reduce the space occupied by the first bridging structure and the second bridging structure along the second direction, thereby reducing the width of the first trace channel in the second direction. This facilitates increasing the arrangement density of the light-emitting units on the substrate, thereby improving the display performance of the display module.

[0014] In some possible implementations, multiple first light-emitting units in a first light-emitting group are connected through one or more first bridging structures and a first power supply trace group. Multiple second light-emitting units in a first light-emitting group are connected through one or more second bridging structures and a second power supply trace group.

[0015] This configuration improves the connection flexibility between multiple first light-emitting units and the first bridging structure in a first light-emitting group, as well as the connection flexibility between multiple second light-emitting units and the second bridging structure in a first light-emitting group. This allows the light-emitting units to be connected to the power supply wiring group nearby through the bridging structure, which helps to reduce the complexity of the wiring on the substrate and can meet the wiring requirements under different conditions.

[0016] In some possible implementations, among a plurality of first light-emitting chips, the first light-emitting chip emitting light of a first color is designated as the first chip. Among a plurality of second light-emitting chips, the second light-emitting chip emitting light of the first color is designated as the second chip. A first power supply trace group includes first power supply traces, which are connected to the first chip. A second power supply trace group includes second power supply traces, which are connected to the second chip. The first power supply traces are multiplexed to become second power supply traces.

[0017] Understandably, light-emitting chips with the same color emit the same power supply voltage; that is, the first chip and the second chip have the same power supply voltage. The first power supply trace and the second power supply trace supply power to the first chip and the second chip respectively, allowing the first power supply trace to be reused as the second power supply trace. This reduces the number of power supply traces, allowing for wider power supply traces in the first and second power supply trace groups located within the first trace channel. This further reduces the voltage drop of the power supply traces within the first trace channel, improving the stability and reliability of the power supply to the light-emitting unit.

[0018] In some possible implementations, the lamp board further includes a first ground trace and a second ground trace. The first ground trace is disposed on the substrate and connected to the first driver chip. The second ground trace is disposed on the substrate and connected to the second driver chip. The first ground trace and the second ground trace are located outside the first trace channel.

[0019] Considering the significant voltage difference between power and ground traces when they are located in the same trace channel (e.g., the first trace channel), a larger distance is required between them to reduce the risk of short circuits. However, since the space in the trace channel is inherently limited, the additional distance between the power and ground traces further compresses the trace space, leading to insufficient space and a reduction in the trace width. This, in turn, increases the voltage drop across the power traces, resulting in decreased brightness of the LEDs connected to their ends.

[0020] Based on this, this application sets the power trace group (including the first power trace group and the second power trace group) inside the first trace channel, while the ground trace (including the first ground trace and the second ground trace) is set outside the first trace channel. This reduces the mutual influence between the power trace and the ground trace, and eliminates the need to reserve a distance, thus avoiding compressing the trace space of the power trace group.

[0021] Based on this, this application further improves the space utilization of the first wiring channel by setting two power trace groups (first power trace group and second power trace group) in the first wiring channel. Since the voltage difference between the two power trace groups is small, the distance between the two power trace groups can be set to be small or even no distance needs to be reserved, thereby improving the space utilization of the first wiring channel. Therefore, it is not necessary to reduce the width of the power traces in the first power trace group and the second power trace group in the first wiring channel. Even if there is enough space, the width of the power traces in the first power trace group and the second power trace group in the first wiring channel can be increased, thereby reducing the voltage drop of the power traces in the first power trace group and the second power trace group in the first wiring channel. This improves the stability and reliability of the first power trace group supplying power to multiple first light-emitting chips in the first light-emitting unit, as well as the stability and reliability of the second power trace group supplying power to multiple second light-emitting chips in the second light-emitting unit.

[0022] In other words, by adopting the above arrangement, the problem of large voltage drop of power supply traces can be solved without changing the arrangement density of light-emitting units on the substrate, thereby improving or ensuring the light-emitting stability of the light-emitting units. In some possible implementations, along the second direction, at least one first light-emitting unit is disposed between the first power supply trace group and the first ground trace, and at least one second light-emitting unit is disposed between the second power supply trace group and the second ground trace.

[0023] Understandably, at least one first light-emitting unit is disposed between the first power supply trace group and the first ground trace, such that the first light-emitting unit can isolate the first power supply trace group and the first ground trace, reducing the risk of short circuit between them. Correspondingly, at least one second light-emitting unit is disposed between the second power supply trace group and the second ground trace, such that the second light-emitting unit can isolate the second power supply trace group and the second ground trace, reducing the risk of short circuit between them.

[0024] In some possible implementations, there are multiple first light-emitting groups, which are arranged along a first direction and a second direction. In two adjacent first light-emitting groups arranged along the second direction, a first driving chip connected to multiple first light-emitting units in one first light-emitting group and a second driving chip connected to multiple second light-emitting units in another first light-emitting group share a grounding trace.

[0025] This configuration allows the first grounding trace and the second grounding trace to be the same grounding trace, thereby reducing the space occupied by the grounding trace on the substrate. This allows for more space to be reserved for power trace groups, enabling the width of the power traces in the first and second power trace groups to be appropriately increased. This reduces the voltage drop of the power traces and improves the stability and reliability of the power traces supplying power to the light-emitting unit.

[0026] In some possible implementations, at least two of the plurality of first light-emitting units are connected in series. Of the at least two first light-emitting units connected in series, one is connected to a first driver chip, and the other is connected to a first power supply trace group through a first bridge structure. At least two of the plurality of second light-emitting units are connected in series. Of the at least two second light-emitting units connected in series, one is connected to a second driver chip, and the other is connected to a second power supply trace group through a second bridge structure.

[0027] By connecting at least two of the multiple first light-emitting units in series with the first driver chip and the first power supply wiring group, it is possible to achieve zoned control of the multiple first light-emitting units in the first light-emitting group. Compared with connecting the multiple first light-emitting units to the first driver chip and the first power supply wiring group respectively, it can simplify the wiring structure of the substrate, reduce the number of first driver chips, and thus help reduce the cost of the lamp board.

[0028] By connecting at least two of the multiple second light-emitting units in series and then connecting them to the second driver chip and the second power supply wiring group, it is possible to achieve zoned control of the multiple second light-emitting units in the first light-emitting group. Compared with connecting the multiple second light-emitting units to the second driver chip and the second power supply wiring group separately, it can simplify the wiring structure of the substrate, reduce the number of second driver chips, and thus help reduce the cost of the lamp board.

[0029] In some possible implementations, the substrate includes a first edge and a second edge, configured as two edges of the substrate disposed opposite each other along a second direction. The lamp panel also includes a second light-emitting group and a third driving chip. The second light-emitting group is disposed on the substrate and located between the first light-emitting group and the first edge, adjacent to the first edge. There are multiple second light-emitting groups, which are spaced apart along the first direction. Each second light-emitting group includes multiple third light-emitting units, which are arranged in multiple rows along the first direction and multiple columns along the second direction. The third driving chip is disposed on the substrate and connected to the multiple third light-emitting units, and is used to drive the multiple third light-emitting units to emit light.

[0030] Understandably, the second light-emitting group is located between the first edge and the first light-emitting group and is spaced apart along the first direction, so that the second light-emitting group can fill the gap between the first edge and the first light-emitting group, effectively utilizing the space of the substrate edge area, so that more light-emitting units can be arranged on the substrate, that is, the number of light-emitting units on the lamp board can be increased, which is beneficial to improving the display performance of the display module.

[0031] On the other hand, embodiments of this application provide a display device. The display device includes a backlight module and a liquid crystal panel. The backlight module includes a lamp panel and an optical film layer, the optical film layer being disposed on the light-emitting side of the lamp panel. The liquid crystal panel is disposed on the side of the optical film layer away from the lamp panel.

[0032] The display device provided in the embodiments of this application includes the lamp panel as described above, and therefore has all the above-described beneficial effects, which will not be repeated here. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of a display device provided in some embodiments of this application;

[0034] Figure 2 This is a schematic diagram of the structure of a display module provided in some embodiments of this application;

[0035] Figure 3 Schematic block diagrams of the structure of a display device provided in some embodiments of this application;

[0036] Figure 4 Schematic block diagrams of the structure of the light panel provided in some embodiments of this application;

[0037] Figure 5 This is a schematic diagram of the structure of the first light-emitting unit and the first conductive unit provided in some embodiments of this application;

[0038] Figure 6 This application provides schematic diagrams of the structure of a second light-emitting unit and a second conductive unit according to some embodiments.

[0039] Figure 7 This is a schematic diagram of the structure of the lamp panel provided in some embodiments of this application;

[0040] Figure 8 for Figure 7 A magnified schematic diagram of the local structure of the Q11 region;

[0041] Figure 9 This is a schematic diagram of the structure of the lamp panel provided in some embodiments of this application;

[0042] Figure 10 for Figure 9 A magnified schematic diagram of the Q12 region.

[0043] Explanation of icon numbers:

[0044] 100-Lamp board, 101-Power supply circuit, 110-Substrate, 120-First light-emitting group, 121-First light-emitting unit, 1211-First light-emitting chip, 122-Second light-emitting unit, 1221-Second light-emitting chip, 123-Light-emitting unit, 123a-Light-emitting chip, 130-Driver chip, 131-First driver chip, 132-Second driver chip, 141-First power supply trace group, 141a-First part, 1411-First power supply trace, 142-Second power supply trace group, 142a-Third part, 1412-Second power supply trace, 151-First grounding trace, 152-Second grounding trace, 161-First bridging structure, 162-Second bridging structure, 171-Second light-emitting group, 172-Third light-emitting unit, 181-First conductive connection unit. 1811-First conductive connection part, 1811a-First sub-part, 1811b-Second sub-part, 182-Second conductive connection unit, 1821-Second conductive connection part, 1821a-Third sub-part, 1821b-Fourth sub-part, 200-Display device, 210-Display module, 211-Backlight module, 2111-Optical film layer, 212-Liquid crystal panel, 212a-Liquid crystal molecule, 213-Color filter, 220-Housing, 230-Bracket, 201-Main board, 202-Central control board, 203-Driver board, 204-Main chip, 205-Backlight control chip, 206-Timing control chip, L1-First edge, L2-Second edge, L3-Third edge, L4-Fourth edge, X-First direction, Y-Second direction, P1-First lamp area, P2-Second lamp area. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all possible embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0047] As used herein, terms such as “equal,” “parallel,” and “perpendicular” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equal items less than or equal to 5% of either one.

[0048] In the embodiments of this application, the directional indications used to explain the structure and movement of different components, such as up, down, left, right, front, and back, are relative. These indications are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, these directional indications will also change accordingly.

[0049] Figure 1 This is a schematic diagram of the structure of a display device provided in some embodiments of this application. For example... Figure 1 As shown, an embodiment of this application provides a display device 200, which has an image display function.

[0050] The display device 200 can be a television, laptop computer, tablet computer, in-vehicle computer, smartphone, smartwatch, projection device, head-up display (HDU), augmented reality (AR) glasses, etc. The embodiments of this application do not further limit the specific form of the display device 200.

[0051] like Figure 1 As shown, the display device 200 may include a display module 210 and a housing 220. The display module 210 is used to display image information. The display module 210 may be a light-emitting diode (LED) display module. For example, the display module 210 may be at least one of a micro light-emitting diode (Micro LED) display module and a mini light-emitting diode (Mini LED) display module.

[0052] Understandably, Mini LED display modules and Micro LED display modules have advantages such as self-illumination, high brightness, high contrast, high resolution, high color saturation, long lifespan, fast response speed, and low power consumption.

[0053] The display module 210 includes a light-emitting side and a backlight side disposed opposite to each other. A housing 220 is disposed on the backlight side and connected to the display module 210, thereby protecting the display module 210 and reducing the impact of the housing 220 on the light emitting side of the display module 210. For example, the housing 220 can be connected to the display module 210 by a snap-fit ​​connection, or it can be connected to the display module 210 by an adhesive connection; the embodiments of this application do not further limit this.

[0054] like Figure 1 As shown, the display device 200 may also include a bracket 230, which is disposed on one side of the housing 220 and connected to the housing 220, serving to support the housing 220 and the display module 210.

[0055] Figure 2 This is a schematic diagram illustrating the structure of a display module provided in some embodiments of this application. In some examples, such as... Figure 2 As shown, the display module 210 includes a backlight module 211 and a liquid crystal panel 212. That is, the display device 200 includes a backlight module 211 and a liquid crystal panel 212.

[0056] The backlight module 211 includes a lamp panel 100 and an optical film layer 2111. Understandably, the lamp panel 100 is the light source of the display module 210, and the light-emitting side of the lamp panel 100 is the light-emitting side of the display module 210.

[0057] The lamp board 100 may include a substrate 110. Figure 2 (Not shown in the image) and multiple light-emitting units 123, which are capable of emitting light, and the multiple light-emitting units 123 are disposed on the substrate 110.

[0058] The optical film layer 2111 is disposed on the light-emitting side of the lamp panel 100. The light emitted by the lamp panel 100 can pass through the optical film layer 2111, and the optical film layer 2111 can perform optical processing on the light emitted by the lamp panel 100.

[0059] For example, the number of optical film layers 2111 can be one or more. When the number of optical film layers 2111 is multiple, the multiple optical film layers 2111 can be stacked on the light-emitting side of the lamp panel 100.

[0060] The optical film layer 2111 may include at least one of a light-diffusing sheet, a prism sheet, and a diffuser sheet. Understandably, the light-diffusing sheet is used to homogenize light, the prism sheet is used to refract or reflect light to improve the brightness of the display module 210, and the diffuser sheet is used to diffuse light. Understandably, the optical film layer 2111 may also include other light-processing films besides the light-diffusing sheet, prism sheet, and diffuser sheet; the embodiments of this application do not further limit the specific form of the optical film layer 2111.

[0061] Continue to refer to Figure 2 In some examples, the liquid crystal panel 212 is disposed on the side of the optical film layer 2111 away from the lamp panel 100. For example, the liquid crystal panel 212 may include a stacked liquid crystal driving circuit (not shown) and a liquid crystal layer, the liquid crystal layer including a plurality of liquid crystal molecules 212a, the liquid crystal driving circuit being able to apply a voltage to the liquid crystal molecules 212a, causing the liquid crystal molecules 212a to deflect, so as to transmit or block the light emitted by the backlight module 211.

[0062] The display module 210 may further include a color filter 213, which is disposed on the side of the liquid crystal panel 212 away from the backlight module 211. The color filter 213 has red, green, and blue pixel blocks. The red pixel blocks transmit red light, the green pixel blocks transmit green light, and the blue pixel blocks transmit blue light. The size and shape of the red, green, and blue pixel blocks may be the same or different. The embodiments of this application do not further limit the size, shape, or arrangement of the red, green, and blue pixel blocks.

[0063] Understandably, the light passing through the color filter 213 is red, green and blue light of different intensities, enabling the display module 210 to achieve full-color display.

[0064] Figure 3 This is a schematic block diagram illustrating the structure of a display device provided in some embodiments of this application. Referring below... Figure 3 An example is given of a method for displaying images on the display device 200.

[0065] like Figure 3 As shown, the display device 200 may include a motherboard 201, a central control board 202, and a driver board 203. The motherboard 201, the central control board 202, and the driver board 203 are respectively disposed within the receiving space enclosed by the housing 220.

[0066] The motherboard 201, the central control board 202, and the driver board 203 may include at least one of a printed circuit board (PCB), a flexible printed circuit board (FPC), and a flexible printed circuit board (FPCB). The specific forms of the motherboard 201, the central control board 202, and the driver board 203 may be the same or different, and the embodiments of this application do not further limit them.

[0067] The display module 210 may also include a main chip 204, a backlight control chip (bcon chip) 205, and a timing control chip (tcon chip) 206. The main chip 204 is located on the motherboard 201, the backlight control chip 205 is located on the central control board 202, and the timing control chip 206 is located on the driver board 203.

[0068] Alternatively, the display device 200 may consist only of the motherboard 201, with the main chip 204, backlight control chip 205, and timing control chip 206 all located on the motherboard 201.

[0069] The embodiments of this application take the example of a display device 200 including a motherboard 201, a central control board 202, and a driver board 203, and will be further illustrated below.

[0070] Continue to refer to Figure 3 The motherboard 201 is connected to the central control board 202 and the driver board 203 respectively, so that the main chip 204 can transmit signals to the backlight control chip 205 and the timing control chip 206 respectively.

[0071] For example, the main chip 204 can receive video sources from external sources and decode the video sources. After decoding the video sources, the main chip 204 can send a portion of the data to the backlight control chip 205 and another portion of the data to the timing control chip 206.

[0072] The timing control chip 206 can be connected to the liquid crystal driving circuit of the liquid crystal panel 212, so that the timing control chip 206 can control the deflection of the liquid crystal molecules 212a.

[0073] The backlight control chip 205 can be connected to the driver chip 130 of the lamp board 100, and the driver chip 130 can be connected to the light-emitting unit 123 of the lamp board 100, so that the backlight control chip 205 can control the light-emitting unit 123 to emit light through the driver chip 130.

[0074] The display module 210 may further include a power supply circuit 101, which is connected to the light-emitting unit 123 and is used to supply power to the light-emitting unit 123. The driver chip 130 can receive the light-emitting state of the light-emitting unit 123 and generate a first feedback signal based on the light-emitting state of the light-emitting unit 123, and feed the first feedback signal back to the backlight control chip 205. The backlight control chip 205 can generate a second feedback signal based on the first feedback signal and feed the second feedback signal back to the power supply circuit 101. The power supply circuit 101 can supply power to the light-emitting unit 123 based on the second feedback signal to achieve closed-loop control.

[0075] For example, the light-emitting unit 123 may include a plurality of light-emitting chips 123a, and at least two of the plurality of light-emitting chips 123a are capable of emitting light of different colors. Understandably, for the sake of simplifying the structural details in the accompanying drawings... Figure 3 Only one light-emitting chip 123a in the light-emitting unit 123 is shown, and the number of light-emitting chips 123a in the light-emitting unit 123 is not limited.

[0076] For example, the light-emitting unit 123 may include three light-emitting chips 123a, which are used to emit red, green, and blue light, respectively. Alternatively, the light-emitting unit 123 may include two light-emitting chips 123a, which are used to emit green and blue light, respectively. Or, the light-emitting unit 123 may also include four light-emitting chips 123a, with two of the four chips 123a emitting red light and the other two emitting green and blue light; alternatively, two of the four chips 123a may emit green light and the other two emitting red and blue light.

[0077] The light-emitting unit 123 includes multiple light-emitting chips 123a, with at least two light-emitting chips 123a emitting light of different colors, which can improve the color gamut of the display module 210 and facilitate image display.

[0078] The power supply voltage of the light-emitting chip 123a that emits different colors of light is different. For example, the power supply voltage of the light-emitting chip 123a that emits red light can be lower than the power supply voltage of the light-emitting chip 123a that emits green light. The power supply voltage of the light-emitting chip 123a that emits green light can be lower than the power supply voltage of the light-emitting chip 123a that emits blue light.

[0079] This requires the power supply circuit 101 to be connected to the light-emitting chips 123a that emit different colors of light through multiple power supply lines, so as to provide separate power to at least two light-emitting chips 123a that emit different colors of light.

[0080] Understandably, in order to simplify the structure of the accompanying drawings, Figure 3 Only one power supply trace connecting the light-emitting unit 123 and the power supply circuit 101 is shown in the diagram, and the number of power supply traces is not limited.

[0081] Understandably, setting the light-emitting unit 123 to include multiple light-emitting chips 123a will increase the number of light-emitting chips 123a, thereby increasing the number of traces on the substrate 110, resulting in a very complex trace design on the substrate 110.

[0082] Figure 4 The following is a schematic block diagram illustrating the structure of a light panel provided in some embodiments of this application. An example of a light panel 100 provided in an embodiment of this application will be described below.

[0083] In some examples, such as Figure 4 As shown, the lamp panel 100 includes a substrate 110 and a first light-emitting group 120, the first light-emitting group 120 being disposed on the substrate 110.

[0084] For example, substrate 110 can be a single-layer aluminum substrate, or substrate 110 can be a multilayer PCB board. The embodiments of this application use a single-layer aluminum substrate as an example for further illustration.

[0085] Understandably, the first light-emitting group 120 is capable of emitting light. (Continue referring to...) Figure 4 In some examples, the first light-emitting group 120 includes a plurality of first light-emitting units 121 and a plurality of second light-emitting units 122.

[0086] For example, the number of first light-emitting units 121 can be 8, and the number of second light-emitting units 122 can also be 8. Alternatively, the number of first light-emitting units 121 and second light-emitting units 122 can also be other. The number of first light-emitting units 121 and second light-emitting units 122 can be the same or different. The embodiments of this application do not further limit the number of first light-emitting units 121 and second light-emitting units 122.

[0087] Multiple first light-emitting units 121 are arranged in multiple rows along the first direction X and in multiple columns along the second direction Y. The first direction X and the second direction Y are perpendicular.

[0088] For example, the first direction X and the second direction Y can be perpendicular or approximately perpendicular; that is, the angle between the first direction X and the second direction Y can be 90°, 88°, or 89°, etc. The first direction X can be the length direction of the substrate 110, and the second direction Y can be the width direction of the substrate 110.

[0089] For example, the plurality of first light-emitting units 121 can be arranged in 4 rows along the first direction X and in 2 columns along the second direction Y. Alternatively, the plurality of first light-emitting units 121 can also be arranged in other numbers of rows along the first direction X and in other numbers of columns along the second direction Y. The embodiments of this application do not further limit the values ​​of the number of rows arranged along the first direction X and the number of columns arranged along the second direction Y of the plurality of first light-emitting units 121.

[0090] For example, the substrate 110 may include a plurality of first conductive connection units 181, the number of first conductive connection units 181 being equal to the number of first light-emitting units 121, and the plurality of first conductive connection units 181 and the plurality of first light-emitting units 121 being connected in a one-to-one correspondence.

[0091] Figure 5 This is a schematic diagram of the structure of the first light-emitting unit and the first conductive unit provided in some embodiments of this application.

[0092] In some examples, such as Figure 5 As shown, the first light-emitting unit 121 includes a plurality of first light-emitting chips 1211, and at least two of the plurality of first light-emitting chips 1211 emit light of different colors.

[0093] The first light-emitting chip 1211 can be a mini LED chip. There can be three first light-emitting chips 1211, which can be used to emit red, green, and blue light respectively. Alternatively, there can be two first light-emitting chips 1211, which can be used to emit green and blue light respectively. Or, there can be four first light-emitting chips 1211, with two emitting red light and the other two emitting green and blue light, or two emitting green light and the other two emitting red and blue light.

[0094] Multiple first light-emitting chips 1211 can be spaced apart along the first direction X, or along the second direction Y, or along both the first direction X and the second direction Y.

[0095] For example, such as Figure 5 As shown, the first conductive connection unit 181 may include a plurality of first conductive connection portions 1811. The number of first conductive connection portions 1811 and the number of first light-emitting chips 1211 may be equal. The plurality of first conductive connection portions 1811 and the plurality of first light-emitting chips 1211 are connected in a one-to-one correspondence, so that the plurality of first light-emitting chips 1211 in the first light-emitting unit 121 can be connected to the substrate 110 respectively.

[0096] Alternatively, the number of first conductive connection portions 1811 may be less than the number of first light-emitting chips 1211, and at least two first light-emitting chips 1211 may be connected to the same first conductive connection portion 1811. For example, at least two first light-emitting chips 1211 with the same light-emitting color may be connected to the same first conductive connection portion 1811.

[0097] For example, the first conductive connection portion 1811 may include a first sub-portion 1811a and a second sub-portion 1811b, the anode pin of the first light-emitting chip 1211 is connected to the first sub-portion 1811a, and the cathode pin of the first light-emitting chip 1211 is connected to the second sub-portion 1811b.

[0098] In some examples, such as Figure 4 As shown, a plurality of second light-emitting units 122 are spaced apart from the first light-emitting unit 121 along the second direction Y to form a first trace channel M between them. Understandably, the first trace channel M extends along the first direction X.

[0099] Continue to refer to Figure 4 Multiple second light-emitting units 122 are arranged in multiple rows along the first direction X and in multiple columns along the second direction Y. The first direction X and the second direction Y are perpendicular.

[0100] For example, the plurality of second light-emitting units 122 can be arranged in 4 rows along the first direction X and in 2 columns along the second direction Y. Alternatively, the plurality of second light-emitting units 122 can also be arranged in other numbers of rows along the first direction X and in other numbers of columns along the second direction Y. The embodiments of this application do not further limit the values ​​of the number of rows arranged by the plurality of second light-emitting units 122 along the first direction X and the number of columns arranged by the plurality of second light-emitting units 122 along the second direction Y.

[0101] For example, the substrate 110 may include a plurality of second conductive connection units 182, the number of second conductive connection units 182 being equal to the number of second light-emitting units 122, and the plurality of second conductive connection units 182 and the plurality of second light-emitting units 122 being connected in a one-to-one correspondence.

[0102] Figure 6 The diagram shows the structure of the second light-emitting unit and the second conductive unit provided in some embodiments of this application.

[0103] In some examples, such as Figure 6 As shown, the second light-emitting unit 122 includes a plurality of second light-emitting chips 1221, and at least two of the plurality of second light-emitting chips 1221 emit light of different colors.

[0104] The second light-emitting chip 1221 can be a mini LED chip. There can be three second light-emitting chips 1221, which can be used to emit red, green, and blue light respectively. Alternatively, there can be two second light-emitting chips 1221, which can be used to emit green and blue light respectively. Or, there can be four second light-emitting chips 1221, with two emitting red light and the other two emitting green and blue light, or two emitting green light and the other two emitting red and blue light.

[0105] Multiple second light-emitting chips 1221 can be spaced apart along the first direction X, or along the second direction Y, or along both the first direction X and the second direction Y.

[0106] For example, such as Figure 6As shown, the second conductive connection unit 182 may include a plurality of second conductive connection portions 1821. The number of second conductive connection portions 1821 and the number of second light-emitting chips 1221 may be equal. The plurality of second conductive connection portions 1821 and the plurality of second light-emitting chips 1221 are connected in a one-to-one correspondence, so that the plurality of second light-emitting chips 1221 in the second light-emitting unit 122 can be connected to the substrate 110 respectively.

[0107] Alternatively, the number of second conductive connection portions 1821 may be less than the number of second light-emitting chips 1221, and at least two second light-emitting chips 1221 may be connected to the same second conductive connection portion 1821. For example, at least two second light-emitting chips 1221 with the same emitting color may be connected to the same second conductive connection portion 1821.

[0108] For example, the second conductive connection portion 1821 may include a third sub-portion 1821a and a fourth sub-portion 1821b, with the anode pin of the second light-emitting chip 1221 connected to the third sub-portion 1821a and the cathode pin of the second light-emitting chip 1221 connected to the fourth sub-portion 1821b.

[0109] Refer again Figure 4 In some examples, the light board 100 also includes a first driver chip 131 and a second driver chip 132.

[0110] A first driving chip 131 is disposed on the substrate 110 and connected to the first light-emitting unit 121. The first driving chip 131 is used to drive the first light-emitting unit 121 to emit light. A second driving chip 132 is disposed on the substrate 110 and connected to the second light-emitting unit 122. The second driving chip 132 is used to drive the second light-emitting unit 122 to emit light.

[0111] For example, the first driving chip 131 can be disposed on one side of the plurality of first light-emitting units 121 along the second direction Y, or the first driving chip 131 can also be disposed on one side of the plurality of first light-emitting units 121 along the first direction X. Alternatively, the first driving chip 131 can also be disposed within the arrangement range of the plurality of first light-emitting units 121 on the substrate 110.

[0112] Understandably, the arrangement range of the plurality of first light-emitting units 121 on the substrate 110 is the range of the closed pattern enclosed by the outer contours of the plurality of first light-emitting units 121 on the substrate 110.

[0113] The second driving chip 132 can be disposed on one side of the plurality of second light-emitting units 122 along the second direction Y, or the second driving chip 132 can also be disposed on one side of the plurality of second light-emitting units 122 along the first direction X. Alternatively, the second driving chip 132 can also be disposed within the arrangement range of the second light-emitting units 122 on the substrate 110.

[0114] Understandably, the arrangement range of the plurality of second light-emitting units 122 on the substrate 110 is the range of the closed pattern enclosed by the outer contours of the plurality of second light-emitting units 122 on the substrate 110.

[0115] The first driving chip 131 can be connected to multiple first light-emitting chips 1211 in the first light-emitting unit 121, so that the first driving chip 131 can drive the first light-emitting unit 121 to emit light. The second driving chip 132 can be connected to multiple second light-emitting chips 1221 in the second light-emitting unit 122, so that the second driving chip 132 can drive the second light-emitting unit 122 to emit light.

[0116] Continue to refer to Figure 4 In some examples, the lamp board 100 further includes a first power supply wiring group 141 and a second power supply wiring group 142. The first power supply wiring group 141 is disposed on the substrate 110 and connected to the first light-emitting unit 121. The second power supply wiring group 142 is disposed on the substrate 110 and connected to the second light-emitting unit 122.

[0117] Understandably, the first power supply line group 141 may include multiple power supply lines, and the multiple power supply lines in the first power supply line group 141 are respectively connected to multiple first light-emitting chips 1211 in the first light-emitting unit 121, so that the power supply circuit 101 can supply power to multiple first light-emitting chips 1211 through the first power supply line group 141, so as to realize separate power supply to the first light-emitting chips 1211 with different light-emitting colors.

[0118] The number of power lines in the first power line group 141 and the number of first light-emitting chips 1211 in the first light-emitting unit 121 can be equal, and the multiple power lines in the first power line group 141 and the multiple first light-emitting chips 1211 in the first light-emitting unit 121 are connected in a one-to-one correspondence.

[0119] Alternatively, the number of power lines in the first power line group 141 may be less than the number of first light-emitting chips 1211 in the first light-emitting unit 121, with at least two first light-emitting chips 1211 connected to the same power line in the first power line group 141. For example, at least two first light-emitting chips 1211 with the same emitting color can be connected to the power supply circuit 101 through the same power line in the first power line group 141.

[0120] Alternatively, when the number of power lines in the first power line group 141 is less than the number of first light-emitting chips 1211 in the first light-emitting unit 121, the first light-emitting chip 1211 emitting blue light and the first light-emitting chip 1211 emitting green light can also be connected to the power supply circuit 101 through the same power line in the first power line group 141.

[0121] Understandably, the second power supply wiring group 142 may include multiple power supply wirings. The multiple power supply wirings in the second power supply wiring group 142 are respectively connected to multiple second light-emitting chips 1221 in the second light-emitting unit 122, so that the power supply circuit 101 can supply power to multiple second light-emitting chips 1221 through the second power supply wiring group 142, so as to realize separate power supply to the second light-emitting chips 1221 with different light-emitting colors.

[0122] The number of power lines in the second power line group 142 and the number of second light-emitting chips 1221 in the second light-emitting unit 122 can be equal, and the multiple power lines in the second power line group 142 and the multiple second light-emitting chips 1221 in the second light-emitting unit 122 are connected in a one-to-one correspondence.

[0123] Alternatively, the number of power lines in the second power line group 142 may be less than the number of second light-emitting chips 1221 in the second light-emitting unit 122, with at least two second light-emitting chips 1221 connected to the same power line in the second power line group 142. For example, at least two second light-emitting chips 1221 with the same emitting color can be connected to the power supply circuit 101 through the same power line in the second power line group 142.

[0124] Alternatively, when the number of power lines in the second power line group 142 is less than the number of second light-emitting chips 1221 in the second light-emitting unit 122, the blue light-emitting second light-emitting chip 1221 and the green light-emitting second light-emitting chip 1221 can also be connected to the power supply circuit 101 through the same power line in the second power line group 142.

[0125] For example, the lamp board 100 may include terminals disposed on the substrate 110. The power traces in the first power trace group 141 and the second power trace group 142 may be connected to the terminals respectively, and connected to the power supply circuit 101 through the terminals.

[0126] The terminal block may include a body and multiple wiring pins. The multiple wiring pins may be arranged on both sides of the body along a first direction X and spaced apart along a second direction Y to improve the connection convenience between the power lines and the terminal blocks in the first power line group 141 and the second power line group 142.

[0127] Continue to refer to Figure 4In some examples, the lamp board 100 also includes a first bridging structure 161 and a second bridging structure 162, which are respectively disposed on the substrate 110.

[0128] Understandably, the bridging structure (including the first bridging structure 161 and the second bridging structure 162) can achieve cross-line connection. The substrate 110 is a single-layer aluminum substrate. By setting the bridging structure on the substrate, two intersecting traces on the substrate 110 can be connected through the bridging structure.

[0129] In some examples, such as Figure 4 As shown, multiple first light-emitting units 121 are connected through a first bridging structure 161 and a first power supply line group 141, and multiple second light-emitting units 122 are connected through a second bridging structure 162 and a second power supply line group 142.

[0130] Understandably, the plurality of first light-emitting chips 1211 in the first light-emitting unit 121 can be connected to the first bridging structure 161 respectively, and connected to the plurality of power lines in the first power line group 141 respectively through the first bridging structure 161. The plurality of second light-emitting chips 1221 in the second light-emitting unit 122 can be connected to the second bridging structure 162 respectively, and connected to the plurality of power lines in the second power line group 142 respectively through the second bridging structure 162.

[0131] In some examples, the first bridging structure 161 and the second bridging structure 162 can be the same bridging structure. That is, the multiple first light-emitting chips 1211 in the first light-emitting unit 121 and the multiple second light-emitting chips 1221 in the second light-emitting unit 122 can be connected to the power traces in the first power trace group 141 and the power traces in the second power trace group 142 respectively through the same bridging structure.

[0132] Continue to refer to Figure 4 In some examples, the lamp board 100 includes a first ground trace 151 and a second ground trace 152. The first ground trace 151 is disposed on the substrate 110 and connected to the first driver chip 131. The second ground trace 152 is disposed on the substrate 110 and connected to the second driver chip 132.

[0133] Understandably, the first grounding trace 151 can ground the first driver chip 131, and the second grounding trace 152 can ground the second driver chip 132.

[0134] In some examples, such as Figure 4As shown, the first power trace group 141 and the second power trace group 142 are at least disposed within the first trace channel M. For example, the first power trace group 141 and the second power trace group 142 are disposed at intervals along a first direction X within the first trace channel M.

[0135] Understandably, since the ground terminal of the substrate 110 is usually located between the edge of the substrate and the first light-emitting group 120, the power traces located in the first trace channel M do not need to avoid the ground terminal, thus eliminating the need to reduce the width of the power traces in the first power trace group 141 and the second power trace group 142 located in the first trace channel M. If there is enough space, the width of the power traces in the first power trace group 141 and the second power trace group 142 located in the first trace channel M can be increased, thereby reducing the voltage drop of the power traces in the first power trace group 141 and the second power trace group 142 located in the first trace channel M.

[0136] Along the second direction Y, the first bridging structure 161 is disposed on the side of the first light-emitting unit 121 near the second light-emitting unit 122, and / or, along the second direction Y, the second bridging structure 162 is disposed on the side of the second light-emitting unit 122 near the first light-emitting unit 121.

[0137] Understandably, the first bridging structure 161 can be disposed within the first wiring channel M1, or the first bridging structure 161 can also be disposed outside the first wiring channel M1 and located on the side of the first light-emitting unit 121 near the second light-emitting unit 122 along the second direction Y.

[0138] The second bridging structure 162 can be disposed within the first wiring channel M1, or the second bridging structure 162 can be disposed outside the first wiring channel M1 and located on the side of the second light-emitting unit 122 close to the first light-emitting unit 121 along the second direction Y.

[0139] When the first bridging structure 161 is disposed along the second direction Y on the side of the first light-emitting unit 121 near the second light-emitting unit 122, the distance between the first bridging structure 161 and the first power supply trace group 141 can be smaller, so that the first bridging structure 161 does not need to be connected to the power supply trace in the first power supply trace group 141 through a long trace, which improves the connection convenience between the two and helps to reduce the complexity of the traces on the substrate 110.

[0140] Furthermore, when the second bridging structure 162 is disposed along the second direction Y on the side of the second light-emitting unit 122 close to the first light-emitting unit 121, the distance between the second bridging structure 162 and the second power supply trace group 142 can be smaller, so that the second bridging structure 162 does not need to be connected through long traces and power supply traces in the second power supply trace group 142, which improves the connection convenience between the two and helps to reduce the complexity of the traces on the substrate 110.

[0141] Furthermore, the first bridging structure 161 does not need to be connected to the first power supply trace group 141 via an excessively long trace, which reduces the space occupied by the connection line between the first bridging structure 161 and the first power supply trace group 141 on the substrate 110. Similarly, the second bridging structure 162 does not need to be connected to the second power supply trace group 142 via an excessively long trace, which also reduces the space occupied by the connection line between the second bridging structure 162 and the second power supply trace group 142 on the substrate 110.

[0142] In this way, there is no need to reduce the width of the power traces in the first power trace group 141 and the second power trace group 142 within the first trace channel M. Even if there is enough space, the width of the power traces in the first power trace group 141 and the second power trace group 142 within the first trace channel M can be increased. This reduces the voltage drop of the power traces in the first power trace group 141 and the second power trace group 142 within the first trace channel M, improving the stability and reliability of the first power trace group 141 supplying power to the multiple first light-emitting chips 1211 in the first light-emitting unit 121, and the stability and reliability of the second power trace group 142 supplying power to the multiple second light-emitting chips 1221 in the second light-emitting unit 122.

[0143] Continue to refer to Figure 4 In some examples, the first bridging structure 161 and the second bridging structure 162 are spaced apart along the first direction X within the first wiring channel M1.

[0144] Understandably, the first bridging structure 161 and the second bridging structure 162 are disposed within the first trace channel M1, which can reduce the distance between the power traces in the first bridging structure 161 and the first power trace group 141, as well as the distance between the power traces in the second bridging structure 162 and the second power trace group 142. Along the first direction X, the first bridging structure 161 and the second bridging structure 162 are spaced apart within the first trace channel M1, which can reduce the space occupied by the first bridging structure 161 and the second bridging structure 162 along the second direction Y, thereby reducing the width of the first trace channel M1 in the second direction Y. This facilitates increasing the arrangement density of the light-emitting units on the substrate 110, thereby improving the display performance of the display module 210.

[0145] Figure 7This is a schematic diagram of the structure of a lamp panel provided in some embodiments of this application. Figure 8 for Figure 7 A magnified schematic diagram of the Q11 region.

[0146] In some examples, such as Figure 7 and Figure 8 As shown, a plurality of first light-emitting units 121 in a first light-emitting group 120 are connected through one or more first bridging structures 161 and a first power supply line group 141. A plurality of second light-emitting units 122 in a first light-emitting group 120 are connected through one or more second bridging structures 162 and a second power supply line group 142.

[0147] This configuration improves the connection flexibility between multiple first light-emitting units 121 and the first bridging structure 161 in a first light-emitting group 120, as well as the connection flexibility between multiple second light-emitting units 122 and the second bridging structure 162 in a first light-emitting group 120. This allows the light-emitting units to be connected to the power supply wiring group nearby through the bridging structure, which helps to reduce the complexity of the wiring on the substrate 110 and can meet the needs under different conditions.

[0148] For example, when multiple first light-emitting units 121 in a first light-emitting group 120 are connected by at least two first bridging structures 161 and a first power supply line group 141, the at least two first bridging structures 161 connected to the multiple first light-emitting units 121 in a first light-emitting group 120 can be spaced apart along a first direction X or spaced apart along a second direction Y.

[0149] For example, when multiple second light-emitting units 122 in a first light-emitting group 120 are connected by at least two second bridging structures 162 and a second power supply line group 142, the at least two second bridging structures 162 connected to the multiple second light-emitting units 122 in the first light-emitting group 120 can be spaced apart along the first direction X or spaced apart along the second direction Y.

[0150] Continue to refer to Figure 4 In some examples, among the plurality of first light-emitting chips 1211, the first light-emitting chip 1211 that emits light of the first color is the first chip, and among the plurality of second light-emitting chips 1221, the second light-emitting chip 1221 that emits light of the first color is the second chip. It is understood that the first color can be one of red, green, and blue, and the embodiments of this application do not further limit the first color.

[0151] The first power trace group 141 includes a first power trace 1411, which is connected to a first chip. The second power trace group 142 includes a second power trace 1412, which is connected to a second chip. The first power trace 1411 is multiplexed as the second power trace 1412.

[0152] Understandably, light-emitting chips with the same color emit the same power supply voltage; that is, the first chip and the second chip have the same power supply voltage. The first power supply trace 1411 and the second power supply trace 1412 supply power to the first chip and the second chip respectively, allowing the first power supply trace 1411 to be reused as the second power supply trace 1412. This reduces the number of power supply traces, allowing for a larger width of the power supply traces in the first power supply trace group 141 and the second power supply trace group 142 within the first trace channel M. This further reduces the voltage drop of the power supply traces within the first trace channel M, improving the stability and reliability of the power supply traces powering the light-emitting unit.

[0153] For example, in the first power trace group 141, power traces other than the first power trace 1411 (second power trace 1412) can be arranged along the second direction Y between the first power trace 1411 and the first light-emitting unit 121. In the second power trace group 142, power traces other than the second power trace 1412 (first power trace 1411) can be arranged along the second direction Y between the second power trace 1412 and the second light-emitting unit 122.

[0154] Continue to refer to Figure 4 In some examples, the first grounding trace 151 and the second grounding trace 152 are located outside the first trace channel M.

[0155] Considering that the voltage difference between the power trace group (including the first power trace group 141 and the second power trace group 142) and the ground trace (including the first ground trace 151 and the second ground trace 152) is relatively large when they are located in the same trace channel (e.g., in the first trace channel M), a larger distance needs to be set between the power trace group and the ground trace to reduce the risk of breakdown and short circuit. However, since the space of the trace channel itself is limited, a distance needs to be reserved between the power trace group and the ground trace. This will further compress the trace space of the power trace group, resulting in insufficient trace space for the power trace group. The trace width of the power trace group can only be reduced, which will lead to an increase in the voltage drop of the power trace, resulting in a decrease in the brightness of the light-emitting chip connected to the end of the power trace.

[0156] Based on this, this application sets the power trace group (including the first power trace group 141 and the second power trace group 142) inside the first trace channel M, while the ground trace (including the first ground trace 151 and the second ground trace 152) is set outside the first trace channel M. This reduces the mutual influence between the power trace and the ground trace, and eliminates the need to reserve a distance, thus avoiding compressing the trace space of the power trace group.

[0157] Based on this, this application further improves the space utilization of the first wiring channel M by setting two power supply wiring groups (first power supply wiring group 141 and second power supply wiring group 142) in the first wiring channel M. Since the voltage difference between the two power supply wiring groups is small, the distance between the two power supply wiring groups can be set to be small or even no distance needs to be reserved, thereby improving the space utilization of the first wiring channel M. Therefore, it is not necessary to reduce the width of the power supply wiring in the first power supply wiring group 141 and the second power supply wiring group 142 in the first wiring channel M. Even if there is enough space, the width of the power supply wiring in the first power supply wiring group 141 and the second power supply wiring group 142 in the first wiring channel M can be increased. This can reduce the voltage drop of the power supply wiring in the first power supply wiring group 141 and the second power supply wiring group 142 in the first wiring channel M, and improve the stability and reliability of the first power supply wiring group 141 supplying power to the multiple first light-emitting chips 1211 in the first light-emitting unit 121, and the stability and reliability of the second power supply wiring group 142 supplying power to the multiple second light-emitting chips 1221 in the second light-emitting unit 122.

[0158] In other words, by adopting the above configuration, the problem of large voltage drop of power supply lines can be solved without changing the arrangement density of light-emitting units on substrate 110, thereby improving or ensuring the light-emitting stability of the light-emitting units.

[0159] In some examples, along the second direction Y, at least one first light-emitting unit 121 is disposed between the first power supply trace group 141 and the first ground trace 151, and at least one second light-emitting unit 122 is disposed between the second power supply trace group 142 and the second ground trace 152.

[0160] The plurality of first light-emitting units 121 in the first light-emitting group 120 can all be disposed between the first power supply line group 141 and the first ground line 151. That is, the first power supply line group 141 and the first ground line 151 are located on both sides of the plurality of first light-emitting units 121 in the first light-emitting group 120 along the second direction Y. Alternatively, a portion of the first light-emitting units 121 (one, two or more) in the first light-emitting group 120 can be disposed between the first power supply line group 141 and the first ground line 151.

[0161] The plurality of second light-emitting units 122 in the first light-emitting group 120 can all be disposed between the second power supply line group 142 and the second grounding line 152. That is, the second power supply line group 142 and the second grounding line 152 are located on both sides of the plurality of second light-emitting units 122 in the first light-emitting group 120 along the second direction Y. Alternatively, a portion of the second light-emitting units 122 (one, two or more) in the first light-emitting group 120 can be disposed between the second power supply line group 142 and the second grounding line 152.

[0162] Understandably, at least one first light-emitting unit 121 is disposed between the first power supply trace group 141 and the first ground trace 151, such that the first light-emitting unit 121 can isolate the first power supply trace group 141 and the first ground trace 151, reducing the risk of short circuit between them. Correspondingly, at least one second light-emitting unit 122 is disposed between the second power supply trace group 142 and the second ground trace 152, such that the second light-emitting unit 122 can isolate the second power supply trace group 142 and the second ground trace 152, reducing the risk of short circuit between them.

[0163] In some examples, such as Figure 7 and Figure 8 As shown, there are multiple first light-emitting groups 120, which are arranged along a first direction X and a second direction Y. For example, the multiple first light-emitting groups 120 can be arranged in an array along the first direction X and the second direction Y, or the multiple first light-emitting groups 120 can be arranged along the first direction and the second direction in other ways. The embodiments of this application do not further limit this.

[0164] Understandably, the first light-emitting unit 121 in the plurality of first light-emitting groups 120 arranged adjacent to each other along the second direction Y is connected to the first power supply line group 141, and the second light-emitting unit 122 in the plurality of first light-emitting groups 120 arranged adjacent to each other along the second direction Y is connected to the second power supply line group 142.

[0165] In the two first light-emitting groups 120 arranged adjacent to each other along the second direction Y, the first driving chip 131 connected to one first light-emitting group 120 and the second driving chip 132 connected to the other first light-emitting group 120 share a grounding trace.

[0166] For example, along the second direction Y, a plurality of first light-emitting units 121 in one first light-emitting group 120 can be arranged adjacent to a plurality of second light-emitting units 122 in another first light-emitting group 120. In this way, a first driving chip 131 connected to a plurality of first light-emitting units 121 in one first light-emitting group 120 and a second driving chip 132 connected to a plurality of second light-emitting units 122 in another first light-emitting group 120 can share a ground trace.

[0167] That is, the first grounding trace 151 and the second grounding trace 152 can be the same grounding trace to reduce the space occupied by the grounding trace on the substrate 110. This allows more space to be reserved for power trace groups, so that the width of the power traces in the first power trace group 141 and the second power trace group 142 can be appropriately increased, thereby reducing the voltage drop of the power traces and improving the stability and reliability of the power traces supplying power to the light-emitting unit.

[0168] In some examples, at least two of the plurality of first light-emitting units 121 are connected in series. For example, two first light-emitting units 121 can be connected in series, or three, four or more first light-emitting units 121 can be connected in series. In the at least two first light-emitting units 121 connected in series, the number of first light-emitting chips 1211 in different first light-emitting units 121 can be equal, such that the plurality of first light-emitting chips 1211 in one first light-emitting unit 121 can be connected in series with the plurality of first light-emitting chips 1211 in another first light-emitting unit 121.

[0169] Of the at least two first light-emitting units 121 connected in series, one first light-emitting unit 121 is connected to the first driving chip 131, and the other first light-emitting unit 121 is connected to the first power supply trace group 141 through the first bridging structure 161.

[0170] Understandably, multiple first light-emitting chips 1211 in one first light-emitting unit 121 are respectively connected to the first driving chip 131, and multiple first light-emitting chips 1211 in another first light-emitting unit 121 are respectively connected through the first bridging structure 161 and multiple power lines in the first power line group 141.

[0171] For example, at least two first light-emitting units 121 connected in series can be spaced apart along a first direction X, or at least two first light-emitting units 121 connected in series can be spaced apart along a second direction Y (see [reference]). Figure 8 ).

[0172] After at least two of the multiple first light-emitting units 121 are connected in series, they are connected to the first driver chip 131 and the first power supply wiring group 141. This enables zoned control of the multiple first light-emitting units 121 in the first light-emitting group 120. Compared with the multiple first light-emitting units 121 being connected to the first driver chip 131 and the first power supply wiring group 141 respectively, this simplifies the wiring structure of the substrate 110, reduces the number of first driver chips 131, and helps to reduce the cost of the lamp board 100.

[0173] At least two first light-emitting units 121 connected in series can form a first light area P1. It can be understood that, in the embodiments of this application, the first light area P1 is the light-emitting area formed by connecting at least two first light-emitting units 121 in series.

[0174] There can be multiple first light zones P1. Multiple first light zones P1 can be set at intervals along the first direction X, or multiple first light zones P1 can be set at intervals along the second direction Y, or multiple first light zones P1 can be set at intervals along the first direction X and the second direction Y.

[0175] When multiple first light zones P1 are spaced apart along the first direction X and the second direction Y, the multiple first light zones P1 can be arranged in an array along the first direction X and the second direction Y, or the multiple first light zones P1 can be arranged in an L-shape or approximately L-shape along the first direction X and the second direction Y.

[0176] By adopting the above-mentioned arrangement, multiple first lamp areas P1 can be arranged on substrates 110 of different sizes and shapes, and the first light-emitting units 121 in multiple first light-emitting groups 120 can be arranged in odd-numbered columns or odd-numbered rows on substrates 110, thus meeting the arrangement requirements of substrates 110 under different conditions.

[0177] Understandably, in different first light-emitting groups 120, the arrangement of multiple first light areas P1 can be the same or different.

[0178] In some examples, at least two of the plurality of second light-emitting units 122 are connected in series. For example, two second light-emitting units 122 can be connected in series, or three, four, or more second light-emitting units 122 can be connected in series. In the at least two series-connected second light-emitting units 122, the number of second light-emitting chips 1221 in each second light-emitting unit 122 can be equal, such that multiple second light-emitting chips 1221 in one second light-emitting unit 122 can be connected in series with multiple second light-emitting chips 1221 in another second light-emitting unit 122.

[0179] In the at least two second light-emitting units 122 connected in series, one second light-emitting unit 122 is connected to the second driving chip 132, and the other second light-emitting unit 122 is connected through the second bridging structure 162 and the second power supply wiring group 142.

[0180] Understandably, multiple second light-emitting chips 1221 in one second light-emitting unit 122 are respectively connected to the second driving chip 132, and multiple second light-emitting chips 1221 in another second light-emitting unit 122 are respectively connected through the second bridging structure 162 and multiple power lines in the second power line group 142.

[0181] For example, at least two second light-emitting units 122 connected in series can be spaced apart along a first direction X, or at least two second light-emitting units 122 connected in series can be spaced apart along a second direction Y.

[0182] By connecting at least two of the multiple second light-emitting units 122 in series and then connecting them to the second driver chip 132 and the second power supply wiring group 142, it is possible to achieve zoned control of the multiple second light-emitting units 122 in the first light-emitting group 120. Compared with connecting the multiple second light-emitting units 122 to the second driver chip 132 and the second power supply wiring group 142 respectively, the wiring structure of the substrate 110 can be simplified, the number of second driver chips 132 can be reduced, and the cost of the lamp board 100 can be reduced.

[0183] At least two second light-emitting units 122 connected in series can form a second light area P2. It can be understood that, in the embodiments of this application, the second light area P2 is the light-emitting area formed by connecting at least two second light-emitting units 122 in series.

[0184] There can be multiple second light zones P2. Multiple second light zones P2 can be spaced apart along the first direction X, or multiple second light zones P2 can be spaced apart along the second direction Y, or multiple second light zones P2 can be spaced apart along the first direction X and the second direction Y.

[0185] When multiple second light zones P2 are spaced apart along the first direction X and the second direction Y, the multiple second light zones P2 can be arranged in an array along the first direction X and the second direction Y, or the multiple second light zones P2 can be arranged in an L-shape or approximately L-shape along the first direction X and the second direction Y.

[0186] By adopting the above configuration, multiple second lamp areas P2 can be arranged on substrates 110 of different sizes and shapes, and the second light-emitting units 122 in multiple first light-emitting groups 120 can be arranged in odd-numbered columns or odd-numbered rows on substrates 110, thus meeting the arrangement requirements of substrates 110 under different conditions.

[0187] Understandably, in different first light-emitting groups 120, the arrangement of multiple second light zones P2 can be the same or different.

[0188] Figure 9 This is a schematic diagram of the structure of a lamp panel provided in some embodiments of this application. Figure 10 for Figure 9 A magnified schematic diagram of the Q12 region.

[0189] In some examples, such as Figure 9 and Figure 10As shown, the substrate includes a first edge L1 and a second edge L2, which are configured as two edges of the substrate 110 disposed opposite to each other along the second direction Y.

[0190] For example, the substrate 110 can be a rectangular or approximately rectangular structure, such that the first edge L1 and the second edge L2 can be positioned opposite each other along the second direction Y.

[0191] like Figure 10 As shown, the lamp panel 100 also includes a second light-emitting group 171, which is disposed on the substrate 110 and located between the first light-emitting group 120 and the first edge L1. The second light-emitting group 171 is disposed adjacent to the first edge, and there are multiple second light-emitting groups 171, which are spaced apart along the first direction X.

[0192] Understandably, the second light-emitting group 171 is located between the first edge L1 and the first light-emitting group 120, and is spaced apart along the first direction X, so that the second light-emitting group 171 can fill the gap between the first edge L1 and the first light-emitting group 120, effectively utilize the space of the edge area of ​​the substrate 110, increase the number of light-emitting units on the lamp board 100, and help improve the display performance of the display module 210.

[0193] The second light-emitting group 171 includes a plurality of third light-emitting units 172. Understandably, each third light-emitting unit 172 includes a plurality of third light-emitting chips, and at least two third light-emitting chips emit light of different colors. At least two of the plurality of third light-emitting units 172 may be connected in series.

[0194] Continue to refer to Figure 10 In some examples, multiple third light-emitting units 172 are arranged in multiple rows along the first direction X and in multiple columns along the second direction Y.

[0195] Understandably, the plurality of third light-emitting units 172 in the second light-emitting group 171 can be arranged according to the size and shape of the gap between the first edge L1 and the first light-emitting group 120. For example, the plurality of third light-emitting units 172 in the second light-emitting group 171 can be arranged in multiple rows along the first direction X and in two or three columns along the second direction Y.

[0196] For example, the plurality of third light-emitting units 172 in a second light-emitting group 171 can be arranged in an L-shape or approximately L-shape, or the plurality of third light-emitting units 172 in a second light-emitting group 171 can also be arranged in other regular or irregular shapes. The embodiments of this application further define the arrangement of the plurality of third light-emitting units 172 in a second light-emitting group 171.

[0197] Continue to refer to Figure 10In some examples, the third driving chip 133 is disposed on the substrate 110 and is connected to a plurality of third light-emitting units 172. The third driving chip 133 is used to drive the third light-emitting units 172 to emit light.

[0198] For example, when multiple third light-emitting units 172 are arranged in multiple rows along the first direction X and multiple columns along the second direction Y, the third driving chip 133 can be disposed within the arrangement range of the multiple third light-emitting units 172 on the substrate 110.

[0199] Understandably, the arrangement range of the plurality of third light-emitting units 172 on the substrate 110 is the range of the closed pattern enclosed by the outer contours of the plurality of third light-emitting units 172 on the substrate 110.

[0200] In this way, the third driver chip 133 does not need to occupy the trace space between the second light-emitting group 171 and the first edge L1, between the second light-emitting group 171 and the first light-emitting group 120, and between two adjacent second light-emitting groups 171 arranged along the second direction Y, so that the width of the power supply trace does not need to be reduced, thereby reducing the voltage drop of the power supply trace.

[0201] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or as many of the technical features as possible; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A light panel, characterized in that, include: substrate; A first light-emitting group is disposed on the substrate, and the first light-emitting group includes a plurality of first light-emitting units and a plurality of second light-emitting units; A first driving chip is disposed on the substrate and connected to a plurality of first light-emitting units. The first driving chip is used to drive the plurality of first light-emitting units to emit light. A second driving chip is disposed on the substrate and connected to a plurality of second light-emitting units. The second driving chip is used to drive the plurality of second light-emitting units to emit light. The first power supply trace group is disposed on the substrate; A second power supply trace group is disposed on the substrate; A first bridging structure is disposed on the substrate, and a plurality of the first light-emitting units are connected through the first bridging structure and the first power supply trace group. as well as, A second bridging structure is disposed on the substrate, and multiple second light-emitting units are connected through the second bridging structure and the second power supply line group; Multiple first light-emitting units are arranged in multiple rows along a first direction and in multiple columns along a second direction, wherein the first direction and the second direction are perpendicular. Each first light-emitting unit includes: A plurality of first light-emitting chips, wherein at least two of the plurality of first light-emitting chips emit light of different colors; A plurality of second light-emitting units are spaced apart from the first light-emitting unit along the second direction to form a first wiring channel between them. The plurality of second light-emitting units are arranged in multiple rows along the first direction and in multiple columns along the second direction. The second light-emitting unit includes: Multiple second light-emitting chips, at least two of which emit light of different colors; The first power trace group and the second power trace group are at least located within the first trace channel; Along the second direction, the first bridging structure is disposed on the side of the first light-emitting unit near the second light-emitting unit, and / or, along the second direction, the second bridging structure is disposed on the side of the second light-emitting unit near the first light-emitting unit.

2. The lamp panel according to claim 1, characterized in that, The first bridging structure and the second bridging structure are spaced apart along the first direction within the first wiring channel.

3. The lamp panel according to claim 1, characterized in that, A plurality of first light-emitting units in a first light-emitting group are connected to the first power supply trace group through one or at least two first bridging structures; A plurality of second light-emitting units in a first light-emitting group are connected by one or at least two second bridging structures and the second power supply wiring group.

4. The lamp panel according to claim 1, characterized in that, Among the plurality of first light-emitting chips, the first light-emitting chip that emits light of the first color is the first chip; Among the multiple second light-emitting chips, the second light-emitting chip that emits light of the first color is the second chip; The first power supply trace group includes: The first power supply trace is connected to the first chip. The second power supply wiring group includes: The second power supply trace is connected to the second chip. The first power trace is reused as the second power trace.

5. The lamp panel according to claim 1, characterized in that, Also includes: A first grounding trace is disposed on the substrate and connected to the first driver chip; A second grounding trace is disposed on the substrate and connected to the second driving chip; The first grounding trace and the second grounding trace are located outside the first trace channel.

6. The lamp panel according to claim 5, characterized in that, Along the second direction, at least one of the first light-emitting units is disposed between the first power supply trace group and the first ground trace, and at least one of the second light-emitting units is disposed between the second power supply trace group and the second ground trace.

7. The lamp panel according to claim 6, characterized in that, The number of the first light-emitting groups is multiple, and the multiple first light-emitting groups are arranged along the first direction and the second direction; In two first light-emitting groups arranged adjacent to each other along the second direction, the first driving chip connected to a plurality of first light-emitting units in one first light-emitting group and the second driving chip connected to a plurality of second light-emitting units in the other first light-emitting group share a grounding trace.

8. The lamp panel according to any one of claims 1 to 7, characterized in that, At least two of the plurality of first light-emitting units are connected in series. Of the at least two first light-emitting units connected in series, one first light-emitting unit is connected to the first driver chip, and the other first light-emitting unit is connected to the first power supply trace group through the first bridge structure. At least two of the multiple second light-emitting units are connected in series. Of the at least two second light-emitting units connected in series, one second light-emitting unit is connected to the second driver chip, and the other second light-emitting unit is connected to the second power supply trace group through the second bridge structure.

9. The lamp panel according to any one of claims 1 to 7, characterized in that, The substrate includes: The first edge and the second edge are configured as two edges of the substrate disposed opposite to each other along the second direction; The light panel also includes: A second light-emitting group is disposed on the substrate and located between the first light-emitting group and the first edge. The second light-emitting group is disposed adjacent to the first edge. There are multiple second light-emitting groups, which are spaced apart along the second direction. Each second light-emitting group includes multiple third light-emitting units, which are spaced apart along the second direction, or the multiple third light-emitting units are arranged in multiple rows along the first direction and in multiple columns along the second direction. A third driving chip is disposed on the substrate and connected to a plurality of third light-emitting units. The third driving chip is used to drive the plurality of third light-emitting units to emit light.

10. A display device, characterized in that, include: Backlight module, the backlight module includes: The lamp panel as described in any one of claims 1 to 9; An optical film layer is disposed on the light-emitting side of the lamp panel; The liquid crystal panel is disposed on the side of the optical film layer away from the lamp panel.

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