Light panel and display device

Abstract

The application provides a lamp panel and a display device, comprising a substrate, a light emitting unit, a driving chip, a first line group and a second line group, the substrate is provided with a terminal, a plurality of driving chips are connected with at least one light emitting unit respectively and used for driving the light emitting unit to emit light, the first line group is connected with the terminal in series in turn, the first line group is configured as an address line of the driving chip, the second line group comprises a first wire and a second wire, the first wire is multiple, each first wire is connected with part of the driving chips in series, each first wire is connected in parallel through the second wire, the second line group is configured as a data line of the driving chip, the plurality of driving chips are connected in parallel through the second wire and the first wire, the number of the driving chips connected in series on each first wire is small, the signal attenuation, delay or distortion transmitted by the second line group can be reduced or even avoided, and the normal work of the display device is facilitated.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a light panel and a display device. Background Technology

[0002] As people's demands for home audio-visual entertainment experiences continue to increase, they are placing higher demands on the clarity, color, and realism of images on display devices such as televisions.

[0003] Display devices typically include an LCD panel, a backlight module for emitting light, and a processor for controlling the backlight module and the LCD panel. The backlight module includes an optical film layer and a lamp board. The lamp board has multiple light-emitting units for emitting light, and multiple driver chips for driving the light-emitting units to emit light. The driver chips are connected to the processor through multiple circuit groups.

[0004] However, the number of driver chips connected in series in the circuit group is large, and the data information transmitted by the circuit group may suffer from problems such as signal attenuation, delay or distortion, which may cause abnormal display function of the display device. Utility Model Content

[0005] This application discloses a light panel and a display device that can reduce or even avoid signal attenuation, delay or distortion transmitted by the circuit group, which is beneficial to ensuring the normal operation of the display device.

[0006] To achieve the above objectives, in a first direction, this application discloses a light panel, including a substrate, light-emitting units, driver chips, a first circuit group, and a second circuit group. The substrate has terminals for connecting to a processor to electrically connect the substrate to the processor. Multiple light-emitting units are disposed on the substrate, each unit having multiple light-emitting chips, which emit at least two different colors of light. Multiple driver chips are arranged in an array on the substrate, each connected to at least one light-emitting unit and used to drive the corresponding light-emitting unit to emit light. The first circuit group connects the terminals and the multiple driver chips, and the multiple driver chips are sequentially connected in series to the terminals via the first circuit group. The first circuit group is configured to constitute the address lines of the driver chips. The second circuit group connects the terminals and the multiple driver chips, including first traces and second traces. Multiple first traces are connected in series with a portion of the multiple driver chips, and each first trace is connected in parallel via the second trace. The second circuit group is configured to constitute the data lines of the driver chips.

[0007] With the above configuration, multiple driver chips are connected in parallel through the second trace and multiple first traces. The number of driver chips connected in series on each first trace is small, which can reduce or even avoid signal attenuation, delay or distortion transmitted by the second line group, which is conducive to ensuring the normal operation of the display device.

[0008] Optionally, the terminal block has an input port and an output port, the second wiring is connected to the output port of the terminal block, each of the first wirings is located on the same side of the second wiring, and the first line group is connected between the input port and the output port.

[0009] The above settings can simplify the wiring of the second circuit group and reduce the production difficulty of the light board.

[0010] Optionally, the substrate has a first side extending along a first direction and a second side extending along a second direction, with an angle between the first direction and the second direction, a first trace extending along the first direction and each of the first traces being spaced apart along the second direction, and at least a portion of the trace segments of the second traces extending along the second direction.

[0011] The above settings can simplify the wiring of the second circuit group and reduce the production difficulty of the light board.

[0012] Optionally, at least two of the plurality of first traces are located on the side of the terminal block closest to the first side.

[0013] Optionally, the first circuit group includes a third trace and a fourth trace. There are multiple third traces, and each third trace is connected in series to the driver chip connected in series with the first trace. There are multiple fourth traces, and each fourth trace is connected between two adjacent third traces. One end of the fourth trace is connected to the first end of one of the two adjacent third traces, and the other end of the fourth trace is connected to the second end of the other of the two adjacent third traces. The first end and the second end are located opposite each other at the two ends of the third trace.

[0014] With the above settings, the fourth trace can connect multiple third traces sequentially end to end to connect multiple driver chips on different third traces in series.

[0015] Optionally, the second line group includes a bridging structure that spans the first line group.

[0016] Optionally, the first and second line groups can be connected to the same input port of the terminal block, or the first and second line groups can be connected to different input ports of the terminal block. This configuration saves on the number of output ports of the terminal block, reducing costs.

[0017] Optionally, it also includes a third line group, which is connected between multiple driver chips and configured to constitute the power lines of the driver chips. The multiple driver chips are connected in series through the third line group and the terminal block, or the multiple driver chips are connected in parallel through the third line group and the terminal block.

[0018] With the above setup, the display device can supply power to the driver chip through the third circuit group.

[0019] Optionally, the light-emitting unit includes a first light-emitting chip, a second light-emitting chip, and a third light-emitting chip, wherein the first light-emitting chip is used to emit red light, the second light-emitting chip is used to emit blue light, and the third light-emitting chip is used to emit green light.

[0020] Secondly, this application discloses a display device, including a backlight module and a liquid crystal panel, wherein the backlight module includes an optical film layer and a lamp board as described in any of the above embodiments, the optical film layer is disposed on the light-emitting side of the lamp board, and the liquid crystal panel is disposed on the side of the optical film layer away from the lamp board.

[0021] With the above settings, the lamp board in the display device can reduce or even avoid signal attenuation, delay or distortion transmitted by the second line group, which helps to ensure the normal operation of the display device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a display device in one embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the display panel in one embodiment of this application;

[0025] Figure 3 This is a schematic block diagram of the structure of a display device in one embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the structure of the lamp board in one embodiment of this application;

[0027] Figure 5 for Figure 4 Enlarged diagram of section A in the middle;

[0028] Figure 6 This is a schematic block diagram of the structure of the light panel in one embodiment of this application;

[0029] Figure 7 This is a schematic block diagram of the structure of the lamp panel in another embodiment of this application.

[0030] Explanation of icon numbers:

[0031] 10; Display device; 10a; Housing; 10b; Display panel; 11; Backlight module; 12; Lamp board; 13; Optical film layer; 14; Liquid crystal panel; 14a; Liquid crystal molecules; 15; Color filter substrate; 16; Processor; 16a; Motherboard; 16b; Central control board; 16c; Driver board; 17; Power supply circuit;

[0032] 100; Substrate; 110; First side; 120; Second side; 130; Third side; 140; Fourth side; 200; Terminal block; 210; Output port; 220; Input port; 300; Light-emitting unit; 310; Light-emitting chip; 400; Driver chip; 500; First circuit group; 510; Third trace; 520; Fourth trace; 600; Second circuit group; 610; First trace; 620; Second trace; 630; Bridging structure; 700; Third circuit group. Detailed Implementation

[0033] 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 some embodiments of this application, and not all 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.

[0034] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0035] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0036] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0037] Furthermore, the terms "upper" and "lower," etc., are primarily used to distinguish different devices, components, or parts whose specific types and structures may be the same or different, and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "multiple" means two or more.

[0038] As mentioned in the background section, with the increasing demands for home audio-visual entertainment experiences, higher requirements are being placed on the image clarity, color, and realism of display devices such as televisions. Display devices typically consist of an LCD panel, a backlight module for emitting light, and a processor that controls the backlight module and the LCD panel. The backlight module includes an optical film layer and a lamp board. The lamp board contains multiple light-emitting units and multiple driver chips that drive these units to emit light. These driver chips are connected to the processor via multiple circuit groups. However, with a large number of driver chips connected in series in these circuit groups, the data transmitted may experience signal attenuation, delay, or distortion, leading to abnormal display functions.

[0039] To address the aforementioned issues, this application provides a light board to resolve the problem in the related art where signal attenuation, delay, or distortion transmitted to the driver chip leads to abnormal display function of the display device.

[0040] Please refer to Figures 1 to 6 The lamp board 12 of this application includes: a substrate 100, a light-emitting unit 300, a driver chip 400, a first circuit group 500, and a second circuit group 600. The substrate 100 is provided with a terminal block 200, which is used to connect to the processor 16 to electrically connect the substrate 100 and the processor 16.

[0041] The light-emitting unit 300 is disposed on the substrate 100, and there are multiple light-emitting units 300. Each light-emitting unit 300 has multiple light-emitting chips 310, and the multiple light-emitting chips 310 are used to emit light of at least two different colors.

[0042] There are multiple driving chips 400, and each driving chip 400 is arranged in an array on the substrate 100. Each driving chip 400 is connected to at least one light-emitting unit 300 and is used to drive the corresponding light-emitting unit 300 to emit light.

[0043] The first line group 500 is connected between the terminal block 200 and multiple driver chips 400, and the multiple driver chips 400 are connected in series to the terminal block 200 through the first line group 500. The first line group 500 is configured to constitute the address lines of the driver chips 400.

[0044] The second line group 600 is connected between the terminal block 200 and multiple driver chips 400. The second line group 600 includes a first trace 610 and a second trace 620. There are multiple first traces 610, and each first trace 610 is connected in series with some of the multiple driver chips 400. Each first trace 610 is connected in parallel through the second trace 620. The second line group 600 is configured to form the data lines of the driver chips 400.

[0045] With the above configuration, multiple driver chips 400 are connected in parallel through the second trace 620 and multiple first traces 610. The number of driver chips 400 connected in series on each first trace 610 is small, which can reduce or even avoid signal attenuation, delay or distortion transmitted by the second line group 600, which is conducive to ensuring the normal operation of the display device 10.

[0046] The components and technical solutions of the display device 10 and the lamp board 12 of this application will be further described below with reference to specific embodiments and accompanying drawings.

[0047] Please refer to Figure 1 The display device 10 provided in this application embodiment may include at least one of the following devices with display functions: television, computer, monitor, display screen, virtual reality (VR) device, or augmented reality (AR) device. The following embodiments of this application will use a television as an example for describing the display device 10; however, the display device 10 in this application embodiment is not limited to a television.

[0048] For ease of explanation, the width direction of the display device 10 is defined as the first direction x, and the length direction of the display device 10 is defined as the second direction y. There is an angle between the first direction x and the second direction y. The first direction x can be perpendicular or approximately perpendicular to the second direction y.

[0049] The display device 10 may include a housing 10a, which can be used to support, fix and protect other components inside the display device 10 to ensure that the display device 10 can work normally and stably.

[0050] Please combine Figure 1 and Figure 2 The display device 10 includes a display panel 10b disposed on the housing 10a and used to display an image. The display panel 10b includes a backlight module 11 for emitting light and has an emitting side and a backlight side disposed opposite to each other. Accordingly, the emitting side of the backlight module 11 is the side of the display panel 10b from which the image is displayed.

[0051] The display panel 10b also includes a liquid crystal panel 14. The liquid crystal panel 14 and the backlight module 11 are arranged in the thickness direction of the display panel 10b. The liquid crystal panel 14 is located on the light-emitting side of the backlight module 11 and is used to receive the light emitted by the backlight module 11. The liquid crystal panel 14 may include a liquid crystal driving circuit (not shown) and a plurality of liquid crystal molecules 14a. The liquid crystal driving circuit can apply a voltage to the liquid crystal molecules 14a, so that the liquid crystal molecules 14a can be deflected to adjust the transmittance of light on different pixels to control the intensity of light transmitted through each pixel, thereby adjusting the grayscale of the image displayed on the display panel 10b.

[0052] The backlight module 11 includes a lamp panel 12, which is used to emit light. Accordingly, the light-emitting side of the lamp panel 12 is the light-emitting side of the backlight module 11, and the backlight side of the lamp panel 12 is the backlight side of the backlight module 11.

[0053] The backlight module 11 also includes an optical film layer 13, which and the lamp panel 12 are arranged in the thickness direction of the display panel 10b, with the optical film layer 13 located on the light-emitting side of the lamp panel 12. The optical film layer 13 can be used to adjust the path, direction, or polarization state of the light emitted by the lamp panel 12, so that the backlight module 11 emits light with uniform brightness, controllable direction, and pure color.

[0054] For example, the number of optical film layers 13 can be one or more. When the number of optical film layers 13 is multiple, the multiple optical film layers 13 can be stacked on the light-emitting side of the lamp panel 12. The optical film layer 13 can include at least one of a light-diffusing sheet, a prism sheet, and a diffuser sheet. The light-diffusing sheet can be used to uniformly distribute light, the prism sheet can be used to refract or reflect light, and the diffuser sheet can be used to diffuse light. Of course, the optical film layer 13 can also include other light-processing film layers 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 13.

[0055] The display panel 10b may further include a color filter substrate 15, which is disposed on the side of the liquid crystal panel 14 away from the backlight module 11. The color filter substrate 15 has red pixel blocks, green pixel blocks, 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. Understandably, the light passing through the color filter substrate 15 consists of red, green, and blue light of different intensities, enabling the display panel 10b to achieve full-color display.

[0056] Therefore, in the thickness direction of the display panel 10b, the lamp plate 12, the optical film layer 13, the liquid crystal panel 14, and the color filter 15 are arranged sequentially. The optical film layer 13, the liquid crystal panel 14, and the color filter substrate 15 are all located on the light-emitting side of the lamp plate 12. The optical film layer 13 is located between the lamp plate 12 and the liquid crystal panel 14, and the liquid crystal panel 14 is located on the side of the optical film layer 13 away from the lamp plate 12. The liquid crystal panel 14 is located between the optical film layer 13 and the color filter substrate 15, and the color filter substrate 15 is located on the side of the liquid crystal panel 14 away from the lamp plate 12.

[0057] Please refer to Figure 3 The display device 10 also includes a processor 16, which is disposed within the housing 10a and may be located on the backlight side of the backlight module 11 in the display panel 10b. The processor 16 can be electrically connected to the backlight module 11 to control the backlight module 11 to emit light. The processor 16 can also be electrically connected to the liquid crystal panel 14 to control the deflection angle of the liquid crystal molecules 14a in the liquid crystal panel 14, thereby adjusting the grayscale of the image displayed on the display panel 10b.

[0058] In one example, the processor 16 may include a main chip, a timing controller (TCON) chip (hereinafter referred to as the TCON chip), and a buffer controller (BCON) chip (hereinafter referred to as the BCON chip). The TCON chip and the BCON chip are connected in parallel to the main chip. Furthermore, the TCON chip is connected to the LCD panel 14, and the BCON chip is connected to the backlight board 12.

[0059] The main chip receives video signals and decodes them into image data signals and backlight control signals. The TCON chip receives image data signals and can control the LCD panel 14 according to the image data signals. The BCON chip receives backlight control signals and can control the lamp board 12 according to the backlight control signals.

[0060] In one implementation, the processor 16 may have three circuit boards. For example, the processor 16 may include a motherboard 16a, a central control board 16b, and a driver board 16c. The main chip may be located on the motherboard 16a, the TCON chip on the driver board 16c, and the BCON chip on the central control board 16b. The central control board 16b and the driver board 16c are connected in parallel to the motherboard 16a to connect the TCON chip and the BCON chip in parallel to the main chip.

[0061] In another implementation, the processor 16 may have a circuit board on which the main chip, TCON chip, and BCON chip are all located.

[0062] The display device 10 may further include a power supply circuit 17, which supplies power to the light-emitting chip 310 in the light-emitting unit 300 on the lamp board 12 that emits at least two different colors of light. For example, the power supply circuit 17 can supply power to the light-emitting unit 300 via two power supplies. Alternatively, the power supply circuit 17 can also supply power to the light-emitting unit 300 via multiple power supplies, so that the light-emitting chip 310 emits multiple different colors of light.

[0063] The driver chip 400 is electrically connected to the light-emitting unit 300 and the BCON chip of the processor 16, and can transmit a first feedback signal to the BCON chip according to the working status of the light-emitting unit 300. The processor 16 is also electrically connected to the power supply circuit 17. The processor 16 can obtain the working status of the light-emitting unit 300 according to the first feedback signal, and transmit a second feedback signal to the power supply circuit 17 to adjust the power supply voltage of the power supply circuit 17, thereby controlling the light-emitting unit 300 to emit light.

[0064] Please refer to Figure 4 This application provides a light panel 12, which can be multiple light panels, and each light panel 12 can be sequentially arranged along the length direction of the display device 10. The length direction of each light panel 12 can be parallel or approximately parallel to the width direction of the display device 10, and the width direction of each light panel 12 can be parallel or approximately parallel to the length direction of the display device 10. That is, the width direction of the light panel 12 can be parallel or approximately parallel to the second direction y, and the length direction of the light panel 12 can be parallel or approximately parallel to the first direction x.

[0065] The lamp panel 12 includes a substrate 100, which may be made of at least one material selected from aluminum, copper, or ceramic. The substrate 100 has a first side 110, a second side 120, a third side 130, and a fourth side 140 connected sequentially. The first side 110 and the third side 130 are disposed opposite each other on both sides of the lamp panel 12 and both extend along a first direction x. The second side 120 and the fourth side 140 are disposed opposite each other on both sides of the lamp panel 12 and both extend along a second direction y. The second side 120 is adjacent to one end of the first side 110 and one end of the third side 130, and the fourth side 140 is adjacent to the other end of the first side 110 and the other end of the third side 130.

[0066] In this embodiment, the first side 110 and the third side 130 can be the long sides of the substrate 100, and the second side 120 and the fourth side 140 can be the short sides of the substrate 100. Alternatively, the first side 110 and the third side 130 can also be the short sides of the substrate 100, and the second side 120 and the fourth side 140 can also be the long sides of the substrate 100. The following embodiments of this application will be described using the first side 110 as an example of the long side of the substrate 100.

[0067] Please refer to Figure 5 The substrate 100 is provided with a terminal block 200, which may include at least one of a PH2.0 connector or an XH2.54 connector. The terminal block 200 is used to connect to the processor 16 to connect the lamp board 12 to the processor 16. For example, the processor 16 may be connected to the end of the terminal block 200 located on the backlight side of the lamp board 12.

[0068] Please combine Figure 3 and Figure 5 The lamp panel 12 also includes multiple light-emitting units 300, which can be arrayed on the substrate 100. Each light-emitting unit 300 has multiple light-emitting chips 310, which can include at least one of mini light-emitting diodes (Mini LEDs) or micro light-emitting diodes (Micro LEDs).

[0069] Each light-emitting chip 310 is used to emit light of at least two different colors. In one example, the light-emitting unit 300 may include a first light-emitting chip, a second light-emitting chip, and a third light-emitting chip. The first light-emitting chip can be used to emit red light, the second light-emitting chip can be used to emit blue light, and the third light-emitting chip can be used to emit green light. This application embodiment does not limit the number of the first, second, and third light-emitting chips in a single light-emitting unit 300; each of the first, second, and third light-emitting chips can be one, two, or more.

[0070] In another example, the light-emitting unit 300 may include a first light-emitting chip and a second light-emitting chip, which are used to emit any one of red light, blue light and green light, respectively, and the light emitted by the first light-emitting chip and the second light-emitting chip are different colors.

[0071] Please combine Figures 4 to 6 The lamp board 12 also includes a plurality of driver chips 400, which can be arrayed on the substrate 100. Each driver chip 400 is connected to at least one light-emitting unit 300 and is used to drive the corresponding light-emitting unit 300 to emit light. This embodiment does not limit the number of light-emitting units 300 connected to each driver chip 400; for example, each driver chip 400 can be connected to two, four, six, or eight light-emitting units 300. Of course, the driver chip 400 can also be connected to other numbers of light-emitting units 300.

[0072] like Figure 6As shown, the lamp board 12 also includes a first circuit group 500, which is disposed on the substrate 100 and connected between multiple driver chips 400, so as to connect multiple driver chips 400 in series between the input port 220 and the output port 210 of the terminal block 200, and then connect each driver chip 400 to the processor 16.

[0073] The first line group 500 can be configured to form the address lines of the driver chip 400. The first line group 500 can be connected to the serial data input (DIS) port and the serial data output (DOS) port of the driver chip 400. The processor 16 can transmit address information to each driver chip 400 through the first line group 500.

[0074] In one embodiment, the first line group 500 may include multiple third traces 510 extending along a first direction x. The multiple third traces 510 may be arranged sequentially along a second direction y, and each third trace 510 may be connected in series between different driver chips 400. For example, the third traces 510 may be connected in series between at least two driver chips 400 that are spaced apart in the first direction x.

[0075] The first line group 500 also includes a plurality of fourth lines 520, each fourth line 520 being connected between driver chips 400 connected in series on different third lines 510, so as to connect the plurality of driver chips 400 on different third lines 510 in series. For example, a fourth line 520 may be connected between two third lines 510 that are adjacent to each other in the second direction y.

[0076] In one example, the third trace 510 has a first end and a second end disposed opposite each other in a first direction x. In the signal transmission direction of the first line group 500, the first end is located at the beginning of the third trace 510, and the second end is located at the end of the third trace 510. Figure 6 As shown, the first end can be the end of the third trace 510 near the second side 120, and the second end can be the end of the third trace 510 near the fourth side 140.

[0077] One end of the fourth trace 520 can be connected to the first end of one of the two adjacent third traces 510, and the other end of the fourth trace 520 can be connected to the second end of the other of the two adjacent third traces 510. Accordingly, in the signal transmission direction of the first line group 500, the fourth trace 520 is connected to the driver chip 400 at the end of one third trace 510, and to the driver chip 400 at the beginning of the other third trace 510.

[0078] With the above configuration, the fourth trace 520 can connect multiple third traces 510 sequentially from end to end, so as to connect multiple driver chips 400 on different third traces 510 in series.

[0079] In the above example, the first line group 500 can be arranged in an "S" shape or approximately an "S" shape. Of course, in other examples, the first line group 500 can also connect the driver chips 400 in series through other routing methods, and the routing method of the first line group 500 is not limited to an "S" shape.

[0080] Please continue to refer to Figure 6 The lamp board 12 also includes a second circuit group 600, which is disposed on the substrate 100 and connected between multiple driver chips 400, so as to connect multiple driver chips 400 between the input port 220 and the output port 210 of the terminal block 200, and then connect each driver chip 400 to the processor 16.

[0081] The second line group 600 can be configured to form the data lines of the driver chip 400. The second line group 600 can be connected to the parallel data input (DIP) port and the parallel data output (DOP) port of the driver chip 400. The processor 16 can transmit data information to each driver chip 400 through the second line group 600.

[0082] Therefore, the processor 16 can transmit addressing information and data information to the driver chip 400 through the first line group 500 and the second line group 600 respectively, so as to control each light-emitting unit 300 to emit light in sequence and realize the display function of the display device 10.

[0083] In other embodiments, the second line group 600 may also be configured as a power line constituting the driver chip 400, and the terminal block 200 may supply power to each driver chip 400 through the second line group 600.

[0084] The second line group 600 includes a plurality of first traces 610, each first trace 610 being connected in series with a portion of the plurality of driver chips 400. For example, each first trace 610 may be connected in series with at least two driver chips 400. The second line group 600 also includes a second trace 620, which is connected in parallel with each first trace 610, so that the driver chips 400 on each first trace 610 are connected in parallel with each other.

[0085] With the above configuration, multiple driver chips 400 are connected in parallel through the second trace 620 and multiple first traces 610. The number of driver chips 400 connected in series on each first trace 610 is small, which can reduce or even avoid signal attenuation, delay or distortion transmitted by the second line group 600, which is conducive to ensuring the normal operation of the display device 10.

[0086] In one embodiment, each first trace 610 can extend along a first direction x, and the plurality of first traces 610 can be arranged at intervals along a second direction y. At least a portion of the trace segment of the second trace 620 extends along the second direction y and is connected to each of the first traces 610. The second trace 620 can be disposed close to the edge of the substrate 100. This arrangement simplifies the routing of the second circuit group 600 and reduces the manufacturing difficulty of the lamp board 12.

[0087] In some implementations, each first trace 610 and each third trace 510 can be connected in series with the same driver chip 400. In the signal transmission direction of the second line group 600, a chip located at the end of one first trace 610 can be connected to a chip located at the beginning of another first trace 610 via a fourth trace 520.

[0088] This simplifies the wiring of the first line group 500 and the second line group 600, reduces the number of intersections between the first line group 500 and the second line group 600, reduces the number of bridging structures 630, and thus reduces the cost of the lamp board 12 and the display device 10.

[0089] In one embodiment, such as Figure 6 As shown, each of the first traces 610 can be located on the same side of the second trace 620. This arrangement simplifies the wiring of the second circuit group 600 and reduces the manufacturing difficulty of the lamp board 12.

[0090] In one embodiment, in the second direction y, the terminal 200 may be disposed near the center of the first side 110 and the third side 130. Accordingly, in the second direction y, the number of first traces 610 located between the terminal 200 and the first side 110 may be equal to or approximately equal to the number of first traces 610 located between the terminal 200 and the third side 130.

[0091] In some implementations, at least two of the plurality of first traces 610 may be located on the side of the terminal 200 near the first side 110.

[0092] In the above embodiments, such as Figure 6As shown, there can be two of each of the first line group 500 and the second line group 600, and the two first line groups 500 and the two second line groups 600 can be arranged symmetrically or approximately symmetrically on both sides of the terminal 200.

[0093] In one embodiment, please refer to Figure 7 The first line group 500 and the second line group 600 are respectively connected to the same output port 210 of the terminal block 200. This configuration saves on the output port 210 of the terminal block 200, reducing costs.

[0094] Of course, in other embodiments, the first line group 500 and the second line group 600 may be connected to different output ports 210 of the terminal block 200.

[0095] In one embodiment, in the transmission direction of the second line group 600, the driver chip 400 located at the end of the second line group 600 is connected to the input port 220 of the terminal block 200 through the first line group 500. This arrangement saves the input port 220 of the terminal block 200, reducing costs.

[0096] In the above embodiments, please continue to refer to Figure 7 The second line group 600 may include a bridging structure 630, which is located at the intersection of the second line group 600 and the first line group 500. The bridging structure 630 crosses the first line group 500 and is used to bridge different routes in the second line group 600.

[0097] In some implementations, the bridging structure 630 may include a crossover that crosses the intersection of the first line group 500 and the second line group 600. In other implementations, the bridging structure 630 may include a crossover that crosses the intersection of the first line group 500 and the second line group 600.

[0098] In one embodiment, the lamp board 12 may further include a third circuit group 700, which is disposed on the substrate 100 and connected between a plurality of driver chips 400. The third circuit group 700 may be configured to form power lines for the driver chips 400, thereby supplying power to each driver chip 400 through the third circuit group 700.

[0099] The third line group 700 can connect multiple driver chips 400 in series between the input port 220 and the output port 210 of the terminal 200, or the third line group 700 can connect multiple driver chips 400 in parallel between the input port 220 and the output port 210 of the terminal 200.

[0100] 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: A substrate, wherein the substrate is provided with wiring terminals for connecting a processor; A light-emitting unit is disposed on the substrate, and there are multiple light-emitting units; each light-emitting unit has multiple light-emitting chips, and the multiple light-emitting chips are used to emit light of at least two different colors; A driving chip, wherein there are multiple driving chips arranged in an array on the substrate, and each driving chip is connected to at least one light-emitting unit and is used to drive the corresponding light-emitting unit to emit light; A first line group is connected between the terminal block and the plurality of driver chips, and the plurality of driver chips are connected in series with the terminal block through the first line group. The first line group is configured to constitute the address lines of the driver chips. The second line group is connected between the terminal block and the plurality of driver chips, and the second line group is configured to constitute the data line of the driver chip; the second line group includes a first trace and a second trace, there are multiple first traces, and each first trace is connected in series with a portion of the driver chips in the plurality of driver chips, and each first trace is connected in parallel through the second trace.

2. The lamp panel according to claim 1, characterized in that, The terminal block has an input port and an output port. The second trace is connected to the output port of the terminal block, and each of the first traces is located on the same side of the second trace. The first line group is connected between the input port and the output port.

3. The lamp panel according to claim 1, characterized in that, The substrate has a first side extending along a first direction and a second side extending along a second direction, with an included angle between the first direction and the second direction; The first trace extends along the first direction, and each of the first traces is spaced apart along the second direction, and at least a portion of the second trace extends along the second direction.

4. The lamp panel according to claim 3, characterized in that, At least two of the plurality of first traces are located on the side of the terminal block closest to the first side.

5. The lamp panel according to any one of claims 1 to 4, characterized in that, The first line group includes a third line and a fourth line. There are multiple third lines, and each of the third lines is connected in series to the driver chip connected in series with the first line. There are multiple fourth traces, each of which is connected between two adjacent third traces. One end of the fourth trace is connected to the first end of one of the two adjacent third traces, and the other end of the fourth trace is connected to the second end of the other of the two adjacent third traces. The first end and the second end are located opposite each other at the two ends of the third trace.

6. The lamp panel according to any one of claims 1 to 4, characterized in that, The second line group includes a bridging structure that spans the first line group.

7. The lamp panel according to any one of claims 1 to 4, characterized in that, The first line group and the second line group are respectively connected to the same input port of the terminal block; or, The first line group and the second line group are connected to different input ports of the terminal block.

8. The lamp panel according to any one of claims 1 to 4, characterized in that, It also includes a third line group, which is connected between the plurality of the driver chips and configured to constitute the power lines of the driver chips; The multiple driver chips are connected in series through the third circuit group and the terminal block, or the multiple driver chips are connected in parallel through the third circuit group and the terminal block.

9. The lamp panel according to any one of claims 1 to 4, characterized in that, The light-emitting unit includes a first light-emitting chip, a second light-emitting chip, and a third light-emitting chip. The first light-emitting chip is used to emit red light, the second light-emitting chip is used to emit blue light, and the third light-emitting chip is used to emit green light.

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

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