Light bar, backlight module and display

Abstract

The application provides a lamp strip, a backlight module and a display, and relates to the technical field of display. The lamp strip comprises a substrate, a physical port and a plurality of first light emitting units. The substrate has opposite front and back surfaces. The plurality of first light emitting units are arranged on the front surface of the substrate at intervals. The physical port is arranged on the back surface of the substrate. The front surface of the substrate is provided with a through hole penetrating through the back surface. The front surface of the substrate is provided with a wire. One end of the wire is electrically connected to the plurality of first light emitting units. The other end of the wire extends to the back surface of the substrate through the through hole and is electrically connected to the physical port. In this way, the physical port does not have to be spaced apart from the first light emitting units in the width direction of the substrate as in the traditional scheme in order to avoid the first light emitting units also located on the front surface of the substrate in space, thereby eliminating the lug protruding from the main body of the substrate in the width direction in the traditional scheme. The width of the substrate can be effectively reduced, the lamp strip is narrower, and the ultra-thin design of the display can be better met.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a light strip, a backlight module, and a display. Background Technology

[0002] A monitor is an output device used to convert electrical signals processed by a computer or other device into visible images or text information, thereby providing users with an intuitive visual display. Typically, a monitor includes a backlight module and a display panel. The display panel is responsible for converting the input electrical signals into visible images or text information. It is composed of numerous pixels, and a complete image is formed by controlling the color and brightness of each pixel. The backlight module mainly provides a uniform backlight for the display panel.

[0003] In related technologies, the backlight module includes a backplate and an LED strip on the backplate. The LED strip typically includes a substrate, ports, and multiple LEDs (Light Emitting Diodes). The substrate has a front and a back side. Multiple LEDs are located on the front side of the substrate and are spaced apart from each other along the length of the substrate. The substrate is often made of aluminum material and is die-cut. This means that the traces on the substrate can only be on the front side and cannot pass through to the back side. As a result, the ports can only be located on the front side of the substrate and electrically connect multiple LEDs through traces. In order to avoid multiple LEDs that are also located on the front side of the substrate, the ports need to be spaced apart from the LEDs in the width direction of the substrate. This results in the substrate being divided into a substrate body and a lug that protrudes from the substrate body in the width direction. Each LED is located on the substrate body and the ports are located on the lug, which results in the substrate being too wide, i.e., the LED strip being too wide, making it difficult to meet the ultra-thin design of the display. Utility Model Content

[0004] This application provides a light strip, a backlight module, and a display, aiming to solve the problem that the width of LED light strips in related technologies is too wide, making it impossible to meet the ultra-thin design of displays.

[0005] To address the aforementioned drawbacks in the related technologies, the first aspect of this application provides a light strip comprising a substrate, a physical port, and a plurality of first light-emitting units. The substrate has a front side and a back side opposite to each other in the thickness direction. The plurality of first light-emitting units are disposed on the front side at intervals, and the physical port is disposed on the back side. A through hole is provided on the front side extending to the back side, and a trace is provided on the front side. One end of the trace is electrically connected to the plurality of first light-emitting units, and the other end of the trace extends through the through hole to the back side and is electrically connected to the physical port.

[0006] In some implementations, the traces include a first trace and a second trace, and the vias include a first via and a second via spaced apart from each other; one end of the first trace is electrically connected to the positive electrode of a plurality of first light-emitting units, and the other end of the first trace extends through the first via to the back side and is electrically connected to the positive electrode of the physical port; one end of the second trace is electrically connected to the negative electrode of a plurality of first light-emitting units, and the other end of the second trace extends through the second via to the back side and is electrically connected to the negative electrode of the physical port.

[0007] In some implementations, the first trace includes a first upper-layer trace on the front and a first lower-layer trace on the back, and the second trace includes a second upper-layer trace on the front and a second lower-layer trace on the back. A first conductive component is provided in the first through hole, with its two ends extending to the front and back respectively. The two ends of the first conductive component are electrically connected to one end of the first upper-layer trace and the first lower-layer trace, respectively. The other end of the first upper-layer trace is electrically connected to the positive electrode of a plurality of first light-emitting units, and the other end of the first lower-layer trace is electrically connected to the positive electrode of the physical port. A second conductive component is provided in the second through hole, with its two ends extending to the front and back respectively. The two ends of the second conductive component are electrically connected to one end of the second upper-layer trace and the second lower-layer trace, respectively. The other end of the second upper-layer trace is electrically connected to the negative electrode of a plurality of second light-emitting units, and the other end of the second lower-layer trace is electrically connected to the negative electrode of the physical port.

[0008] In some implementation schemes, the first conductive component and the second conductive component have the same structure, including an insulating layer and a conductive layer. The insulating layer is disposed on the wall of the through hole, and the conductive layer is disposed on the insulating layer and seals the through hole.

[0009] In some implementations, the conductive layer includes a conductive rod coaxial with the through-hole, the outer wall of which is in contact with the insulating layer. Alternatively, the conductive layer includes a conductive material layer disposed on the insulating layer and filling the through-hole. Or, the conductive layer includes a conductive rod coaxial with the through-hole and two conductive plates, the outer walls of which are in contact with the insulating layer, and the two conductive plates are located at opposite openings of the through-hole. The two ends of the conductive rod are respectively disposed on the two conductive plates, and the rod diameter is smaller than the diameter of the through-hole. Alternatively, the conductive layer includes a conductive material layer and two conductive plates coaxial with the through-hole, the conductive material layer is disposed on the insulating layer, the outer walls of which are in contact with the conductive material layer, and the two conductive plates are located at opposite openings of the through-hole.

[0010] In some implementations, the light strip also includes multiple second light-emitting units spaced apart on the back side, with the positive and negative terminals of the second light-emitting units electrically connected to the positive and negative terminals of the physical port, respectively.

[0011] The second aspect of this application provides a backlight module, which includes a back panel and at least one light strip provided in the first aspect of this application is provided on the back panel.

[0012] A third aspect of this application provides a display, which includes a display panel and a backlight module provided in the second aspect of this application, wherein the display panel is disposed on the light-emitting side of the backlight module.

[0013] The light strip provided in the first aspect of this application is composed of a substrate, a physical port and a plurality of first light-emitting units. The substrate has a front side and a back side opposite to each other in the thickness direction. The plurality of first light-emitting units are disposed on the front side of the substrate at intervals. The physical port is disposed on the back side of the substrate. A through hole is opened on the front side of the substrate and extends to the back side. A trace is provided on the front side of the substrate. One end of the trace is electrically connected to the plurality of first light-emitting units, and the other end extends through the through hole to the back side of the substrate and is electrically connected to the physical port. Understandably, this application provides a through-hole extending from the front to the back of the substrate. Through this through-hole, traces that can only be located on the front of the substrate in conventional solutions can be guided to the back of the substrate. This allows physical ports that can only be located on the front of the substrate in conventional solutions to be moved to the back of the substrate. In this way, the physical ports do not need to be spaced apart from the first light-emitting unit, which is also located on the front of the substrate, as is the case in conventional solutions. This eliminates the tabs that protrude from the substrate body in the width direction in conventional solutions (i.e., multiple first light-emitting units are located on the front of the substrate body, and the physical ports are located on the back of the substrate body). This effectively reduces the width of the substrate, which in turn effectively reduces the width of the light strip. This allows this application to better meet the requirements of ultra-thin display designs.

[0014] The backlight module provided in the second aspect of this application has all the advantages of the light strip provided in the first aspect of this application since it includes the light strip.

[0015] The display provided in the third aspect of this application has all the advantages of the backlight module provided in the second aspect of this application because it includes the backlight module provided in the second aspect of this application. Attached Figure Description

[0016] To more clearly illustrate the related technologies or the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the related technologies or the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application, and not all embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of an LED light strip in a traditional solution;

[0018] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 3This is a top view of an LED light strip in a traditional design.

[0020] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0021] Figure 5 A top view of the light strip provided in the embodiments of this application;

[0022] Figure 6 Provided for the embodiments of this application Figure 5 A magnified view of a section at point C;

[0023] Figure 7 A bottom view of the light strip provided in an embodiment of this application;

[0024] Figure 8 Provided for the embodiments of this application Figure 7 A magnified view of a section at point D;

[0025] Figure 9 This is a schematic diagram of the structure of the conductive component provided in the embodiments of this application;

[0026] Figure 10 An exploded view of four conductive components provided in the embodiments of this application;

[0027] Figure 11 Another bottom view of the light strip provided in the embodiment of this application;

[0028] Figure 12 Provided for the embodiments of this application Figure 11 A magnified view of a section at point E in the middle.

[0029] The markings in the above figures represent:

[0030] 1-Substrate, 2-Physical port, 3-First light-emitting unit, 4-Insulating layer, 5-Conductive layer, 6-Second light-emitting unit, 11-Through hole, 111-First through hole, 112-Second through hole, 51-Conductive rod, 52-First conductive material layer, 53-Conductive rod, 54-Conductive sheet, 55-Second conductive material layer. Detailed Implementation

[0031] In related technologies, such as Figures 1-4As shown, an LED light strip includes a substrate, ports, and multiple LEDs. The substrate has a front and a back side facing each other in the thickness direction. Multiple LEDs are all located on the front side of the substrate and spaced apart from each other along the length of the substrate. The substrate is often formed by die-cutting from aluminum material, which means that the substrate's wiring can only be on the front side and cannot reach the back side. This means the ports can only be located on the front side of the substrate and electrically connected to the multiple LEDs via wiring. To avoid spatially clashing with LEDs also located on the front side of the substrate, the ports must be spaced apart from the LEDs in the width direction of the substrate. This results in the substrate being divided into a substrate body and tabs protruding from the substrate body in the width direction. Since multiple LEDs are located on the substrate body and the ports are located on the tabs, the substrate width becomes excessively wide, i.e., the LED light strip width is too wide, making it difficult to meet the ultra-thin design requirements of displays. In view of this, this application proposes a light strip, a backlight module, and a display in the embodiments below to solve the aforementioned drawbacks of the related art.

[0032] To make the objectives, technical solutions, and advantages of this application more apparent and understandable, this application will be clearly and completely described below in conjunction with its embodiments and corresponding drawings. Throughout, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. It should be understood that the embodiments of this application described below are only for explaining this application and are not intended to limit this application. That is, all other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0033] Please see Figures 5 to 8 , Figure 5 This is a top view of the light strip. Figure 6 yes Figure 5 A magnified view of a section at point C. Figure 7 This is a bottom view of the light strip. Figure 8 yes Figure 7A magnified view of a portion at point D. This embodiment provides a light strip used in a display. The display includes a display panel and a backlight module. The backlight module includes a back plate, on which at least one light strip of this embodiment is disposed. The back plate is generally a thin plate made of materials such as metal or plastic, which can provide structural support for the light strip and protect the optical components and circuits inside the light strip. It also plays a certain role in heat dissipation, helping to maintain the normal operating temperature of the light strip. In addition, it should be noted that the display panel is the core component of the display. It is located on the light-emitting side of the backlight module and is mainly responsible for converting the input electrical signals into visible images or text information. It is usually composed of numerous pixels. By controlling the color and brightness of each pixel, a complete image can be formed. The backlight module mainly provides a uniform backlight source for the display panel so that users can clearly see the images or text information. These are relatively mature technologies in the field, so this embodiment will not describe them in detail. It should also be noted that, in addition to the backplate and LED strips, the backlight module may also include other components required for operation, such as a light guide plate (which guides the light emitted by the LED strips to the display panel uniformly), a diffuser plate (which diffuses the light emitted from the light guide plate to reduce the directionality of the light and make the backlight more uniform), and a brightness enhancement film (which concentrates the light that was originally scattered in all directions to a direction perpendicular to the display panel to increase the brightness of the display panel), and a reflective sheet disposed between the LED strips and the backplate (which reflects the light emitted by the LED strips toward the backplate back to the light guide plate to reduce light loss and thus improve the light utilization efficiency of the backlight module), etc. These are all relatively mature technologies in the field, so this embodiment will not describe them in detail.

[0034] Specifically, the light strip provided in this embodiment includes a substrate 1, a physical port 2, and multiple first light-emitting units 3. The substrate 1 is equivalent to the substrate body in a conventional solution. The substrate 1 has a front and a back side opposite each other in the thickness direction. The multiple first light-emitting units 3 are disposed on the front side of the substrate 1 at intervals. The physical port 2 is located at any position on the back side of the substrate 1 and does not extend beyond the edge of the substrate 1. A through hole 11 is opened on the front side of the substrate 1, extending to the back side. A trace (not shown) is provided on the front side of the substrate 1. One end of the trace is electrically connected to the multiple first light-emitting units 3, and the other end of the trace extends through the through hole 11 to the back side of the substrate 1 and is electrically connected to the physical port 2. In addition, it should be noted that the substrate 1 is the basic support structure of the light strip, which is usually manufactured using printed circuit board (PCB) technology. It can provide electrical connections and physical support for the first light-emitting units 3, the physical port 2, the traces, etc., and also has functions such as insulation and heat dissipation. It should also be noted that the physical port 2 can be electrically connected to an external device or power supply to realize signal transmission and power supply.

[0035] In this embodiment, the plurality of first light-emitting units 3 disposed on the front side of the substrate 1 are spaced apart from each other along the length direction of the substrate 1, and these first light-emitting units 3 can be staggered in pairs or located on the same straight line. Of course, the distribution of the plurality of first light-emitting units 3 on the front side of the substrate 1 is not limited to this. In other embodiments, the plurality of first light-emitting units 3 can be divided into multiple light-emitting groups, each light-emitting group including a plurality of first light-emitting units 3, the multiple light-emitting groups being spaced apart from each other along the width direction of the substrate 1, and the plurality of first light-emitting units 3 in each light-emitting group being spaced apart from each other along the length direction of the substrate 1. It should be noted that those skilled in the art can design the distribution of the plurality of first light-emitting units 3 on the front side of the substrate 1 according to actual needs, and this embodiment does not limit this to a single form.

[0036] In this embodiment, the first light-emitting unit 3 may include a single light-emitting element or multiple light-emitting elements. When multiple light-emitting elements are included, they can be arranged in a preset pattern array, as is the case with the second light-emitting unit 6 mentioned below. The preset pattern can be any shape commonly found in the art, such as a circle, ellipse, rectangle, triangle, trapezoid, or other polygons, and can be selected according to actual needs. This embodiment does not impose a unique limitation on this. Furthermore, it should be noted that the light-emitting element can be any element commonly used in the art that has light-emitting function, such as inorganic light-emitting diodes (LEDs), sub-millimeter light-emitting diodes (Mini-LEDs), micro light-emitting diodes (Micro-LEDs), organic light-emitting diodes (OLEDs), quantum dot light-emitting diodes (QLEDs), etc., and can be selected according to actual needs. This embodiment does not impose a unique limitation on this.

[0037] In this embodiment, the traces on the front side of the substrate 1 include a first trace (not shown in the figure) and a second trace (not shown in the figure). The through holes 11 formed on the substrate 1 include a first through hole 111 and a second through hole 112. One end of the first trace is electrically connected to the positive electrode (also called the positive pin or positive input / output terminal) of a plurality of first light-emitting units 3. The other end of the first trace extends through the first through hole 111 to the back side of the substrate 1 and is electrically connected to the positive electrode of the physical port 2. One end of the second trace is electrically connected to the negative electrode (also called the negative pin or negative input / output terminal) of a plurality of first light-emitting units 3. The other end of the second trace extends through the second through hole 112 to the back side of the substrate 1 and is electrically connected to the negative electrode of the physical port 2.

[0038] It is understood that in this embodiment, a through hole 11 is opened on the front side of the substrate 1 and extends to the back side. Through this through hole 11, the traces that can only be located on the front side of the substrate 1 in the conventional solution can be guided to the back side of the substrate 1. In turn, the physical port 2 that can only be located on the front side of the substrate 1 in the conventional solution can be transferred to the back side of the substrate 1. In this way, the physical port 2 does not need to be spaced apart from the first light-emitting unit 3, which is also located on the front side of the substrate 1, in order to avoid the space. This eliminates the tabs that protrude from the substrate body in the width direction in the conventional solution (i.e., multiple first light-emitting units 3 are located on the front side of the substrate body, and the physical port 2 is located on the back side of the substrate body). The width of the substrate 1 can be effectively reduced, that is, the width of the light strip can be effectively reduced, and the light strip can be made narrower. This narrower light strip can better meet the ultra-thin design of the display.

[0039] In some embodiments, the traces can be divided into upper traces (not shown) on the front side of substrate 1 and lower traces (not shown) on the back side of substrate 1. Based on this, a conductive component (not shown) is provided within the via 11. The two ends of the conductive component are electrically connected to one end of the upper trace and one end of the lower trace, respectively. The other end of the upper trace is electrically connected to a plurality of first light-emitting units 3, and the other end of the lower trace is electrically connected to the physical port 2. Therefore, in practical applications, the method of guiding the traces on the front side of substrate 1 to the back side of substrate 1 is not limited to passing the traces on the front side of substrate 1 through the via 11 to the back side of substrate 1. The traces can also be divided into upper traces on the front side of substrate 1 and lower traces on the back side of substrate 1, and a conductive component is provided within the via 11. By electrically connecting the two ends of the conductive component to the upper trace and the lower trace, the traces on the front side of substrate 1 can be guided to the back side of substrate 1. In addition, it should be noted that the two ends of the conductive component can extend to the front and back sides of the substrate 1 respectively, that is, the end faces of the two ends of the conductive component are flush with the front and back sides of the substrate 1 respectively. In this way, whether it is an upper layer trace or a lower layer trace, they do not need to enter the through hole 11 to be electrically connected to the conductive component.

[0040] In other words, the first trace used for positive electrode connection includes a first upper layer trace (not shown) on the front side of substrate 1 and a first lower layer trace (not shown) on the back side of substrate 1, while the second trace used for negative electrode connection includes a second upper layer trace (not shown) on the front side of substrate 1 and a second lower layer trace (not shown) on the back side of substrate 1. Based on this, a first conductive component (not shown) is provided in the first through hole 111, with its two ends extending to the front and back sides of the substrate 1 respectively. The two ends of the first conductive component are electrically connected to one end of the first upper layer trace and the first lower layer trace, respectively. The other end of the first upper layer trace is electrically connected to the positive electrode of a plurality of first light-emitting units 3, and the other end of the first lower layer trace is electrically connected to the positive electrode of the physical port 2. A second conductive component (not shown) is provided in the second through hole 112, with its two ends extending to the front and back sides of the substrate 1 respectively. The two ends of the second conductive component are electrically connected to one end of the second upper layer trace and the second lower layer trace, respectively. The other end of the second upper layer trace is electrically connected to the negative electrode of a plurality of first light-emitting units 3, and the other end of the second lower layer trace is electrically connected to the negative electrode of the physical port 2. The structures of the second conductive component and the first conductive component can be the same or different.

[0041] As at least one embodiment, please refer to Figure 9 , Figure 9 The diagram shows the structure of the conductive component. The conductive component includes an insulating layer 4 and a conductive layer 5. The insulating layer 4 is disposed on the wall of the through hole 11, and the conductive layer 5 is disposed on the insulating layer 4 and seals the through hole 11.

[0042] For example, please combine Figure 10 , Figure 10 The diagram shows exploded views of four types of conductive components, where (a), (b), (c), and (d) correspond to different conductive components. Figure 10 As shown in (a), the conductive layer 5 includes a conductive rod 51 coaxial with the through hole 11. The outer wall of the conductive rod 51 is attached to the insulating layer 4. The two ends of the conductive rod 51 are electrically connected to the upper layer trace and the lower layer trace, respectively. That is, the conductive rod 51 is used to guide the traces on the front side of the substrate 1 to the back side of the substrate 1. It can be understood that the conductive rod 51 has better conductivity and the insulating layer 4 has better insulation. The purpose of setting the insulating layer 4 on the hole wall of the through hole 11 is to: prevent the conductive rod 51 from accidentally contacting other conductive lines or components around the through hole 11, thereby preventing short circuits; reduce electromagnetic interference and ensure that the electrical signals transmitted by the conductive rod 51 have good stability and accuracy; and keep the conductive rod 51 in a stable position within the through hole 11, so that it is not easy to shake or displace.

[0043] Furthermore, it should be noted that the conductive rod 51 can be made of any material with good conductivity commonly used in the art (as can the first conductive material layer 52, conductive rod 53, conductive sheet 54, and second conductive material layer 55 described below), such as copper, aluminum, copper alloys, nickel-iron alloys, conductive ceramics, etc., and can be selected according to actual needs. This application does not make a unique limitation in this regard. It should also be noted that the insulating layer 4 can be made of any material with good insulation commonly used in the art, such as epoxy resin, polyimide (PI), polytetrafluoroethylene (PTFE), ceramic matrix composites, glass fiber reinforced plastic (FR-4), silica, alumina, boron nitride, Parylene, silicone rubber, etc., and can be selected according to actual needs. This application does not make a unique limitation in this regard.

[0044] Of course, the structure of conductive layer 5 is not limited to this. In other embodiments, conductive layer 5 may also adopt a different structure. Figure 10 Other structures in (a) are acceptable as long as they enable electrical connection between upper and lower layer traces; this application does not impose a single limitation on this. For example, such as Figure 10 As shown in (b), the conductive layer 5 includes a first conductive material layer 52, which is disposed on the insulating layer 4 and fills the through-hole 11; or, as shown in (b), Figure 10 As shown in (c), the conductive layer 5 includes a conductive rod 53 coaxial with the through hole 11 and two conductive sheets 54. The outer walls of the two conductive sheets 54 are in contact with the insulating layer 4. The two conductive sheets 54 are located at two opposite openings of the through hole 11. The two ends of the conductive rod 53 are respectively disposed on the two conductive sheets 54. The diameter of the conductive rod 53 is smaller than the diameter of the through hole 11, that is, the outer wall of the conductive rod 53 is spaced apart from the hole wall of the through hole 11, which can reduce the material used of the conductive rod 53; or, as Figure 10 As shown in (d), the conductive layer 5 includes a second conductive material layer 55 and two conductive sheets 54 coaxial with the through hole 11. The second conductive material layer 55 is disposed on the insulating layer 4. The outer walls of the two conductive sheets 54 are attached to the second conductive material layer 55. The two conductive sheets 54 are respectively located at the two openings opposite to each other in the through hole 11.

[0045] In some embodiments, please combine Figure 11 and Figure 12 , Figure 11 This is another bottom view of the light strip. Figure 12 yes Figure 11A partial enlarged view at point E. The light strip provided in this application also includes multiple second light-emitting units 6, which are spaced apart on the back side of the substrate 1. Each second light-emitting unit 6 is electrically connected to a physical port 2, meaning that the positive and negative terminals of each second light-emitting unit 6 are electrically connected to the positive and negative terminals of the physical port 2, respectively. This electrical connection is also achieved through wiring. It should be noted that the distribution of the physical port 2 and the multiple second light-emitting units 6 on the back side of the substrate 1 can be designed according to actual needs, as long as it satisfies the requirement that "the physical port 2 and the second light-emitting units 6 are not spaced apart in the width direction of the substrate 1 (i.e., they do not form the lugs found in conventional solutions)". This application does not impose a unique limitation on this; for example, the physical port 2 and the multiple second light-emitting units 6 may be spaced apart in the length direction of the substrate 1. It is understood that the front side of the substrate 1 has multiple first light-emitting units 3, and the back side of the substrate 1 has multiple second light-emitting units 6. This indicates that the substrate 1 of this application is double-sided. Applying this double-sided light-emitting strip to a backlight module can provide new ideas for the structural design of subsequent displays.

[0046] The above embodiments are merely preferred implementations of this application and are not the only limitations on the light strip, backlight module, and display. Those skilled in the art can flexibly customize these embodiments based on actual application scenarios. It is understood that through the implementation of the above embodiments of this application, a light strip is constructed using a substrate 1, a physical port 2, and multiple first light-emitting units 3. The substrate 1 has a front and a back side facing each other in the thickness direction. Multiple first light-emitting units 3 are spaced apart on the front side of the substrate 1. The physical port 2 is located on the back side of the substrate 1 and does not extend beyond the edge of the substrate 1. A through-hole 11 extending from the front side of the substrate 1 to the back side is provided. A trace is provided on the front side of the substrate 1, with one end electrically connected to multiple first light-emitting units 3 and the other end extending through the through-hole 11 to the back side of the substrate 1 and electrically connected to the physical port 2. It can be seen that this application opens a through hole 11 on the front side of the substrate 1 and extends to the back side. Through this through hole 11, the traces that can only be located on the front side of the substrate 1 in the conventional solution can be guided to the back side of the substrate 1. In this way, the physical port 2 that can only be located on the front side of the substrate 1 in the conventional solution can be transferred to the back side of the substrate 1. Thus, the physical port 2 does not need to be spaced apart from the first light-emitting unit 3, which is also located on the front side of the substrate 1, in order to avoid the space in the conventional solution. This eliminates the tab that protrudes from the substrate body in the width direction in the conventional solution, which can effectively reduce the width of the substrate 1, that is, effectively reduce the width of the light strip, making the light strip narrower. This narrower light strip can better meet the ultra-thin design of the display.

[0047] It should be noted that the several embodiments shown above in this application are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. It should also be noted that in the textual description of this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply such an actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements may include not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus; and, without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] Furthermore, those skilled in the art can implement or use this application by practicing the several embodiments shown above. Various modifications to the embodiments shown above will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments not shown without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the several embodiments shown above, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A light strip, characterized in that, The device includes a substrate, a physical port, and a plurality of first light-emitting units. The substrate has a front side and a back side, the plurality of first light-emitting units are disposed on the front side at intervals, the physical port is disposed on the back side, the front side has a through hole extending through to the back side, the front side has a trace, one end of the trace is electrically connected to the plurality of first light-emitting units, and the other end of the trace extends through the through hole to the back side and is electrically connected to the physical port.

2. The light strip according to claim 1, characterized in that, The trace includes a first trace and a second trace, and the through hole includes a first through hole and a second through hole; One end of the first trace is electrically connected to the positive electrode of the plurality of first light-emitting units, and the other end extends through the first through hole to the back side and is electrically connected to the positive electrode of the physical port. One end of the second trace is electrically connected to the negative electrode of the plurality of first light-emitting units, and the other end extends through the second through hole to the back side and is electrically connected to the negative electrode of the physical port.

3. The light strip according to claim 2, characterized in that, The first trace includes a first upper layer trace located on the front side and a first lower layer trace located on the back side; the second trace includes a second upper layer trace located on the front side and a second lower layer trace located on the back side. The first through hole is provided with a first conductive component with two ends extending to the front and the back respectively. The two ends of the first conductive component are electrically connected to one end of the first upper layer trace and one end of the first lower layer trace respectively. The other end of the first upper layer trace is electrically connected to the positive electrode of the plurality of first light-emitting units, and the other end of the first lower layer trace is electrically connected to the positive electrode of the physical port. The second through hole is provided with a second conductive component with two ends extending to the front and the back respectively. The two ends of the second conductive component are electrically connected to one end of the second upper layer trace and one end of the second lower layer trace respectively. The other end of the second upper layer trace is electrically connected to the negative electrode of the plurality of first light-emitting units, and the other end of the second lower layer trace is electrically connected to the negative electrode of the physical port.

4. The light strip according to claim 3, characterized in that, The first conductive component and the second conductive component have the same structure, both including an insulating layer and a conductive layer. The insulating layer is disposed on the wall of the through hole, and the conductive layer is disposed on the insulating layer and seals the through hole.

5. The light strip according to claim 4, characterized in that, The conductive layer includes a conductive rod coaxial with the through hole, and the outer wall of the conductive rod is attached to the insulating layer.

6. The light strip according to claim 4, characterized in that, The conductive layer includes a conductive rod coaxial with the through hole and two conductive sheets. The outer walls of the two conductive sheets are in contact with the insulating layer. The two conductive sheets are located at two opposite openings of the through hole. The two ends of the conductive rod are respectively disposed on the two conductive sheets and the rod diameter is smaller than the diameter of the through hole.

7. The light strip according to claim 4, characterized in that, The conductive layer includes a conductive material layer and two conductive sheets coaxial with the through hole. The conductive material layer is disposed on the insulating layer, and the outer walls of the two conductive sheets are in contact with the conductive material layer. The two conductive sheets are respectively located at the two openings opposite to the through hole.

8. The light strip according to claim 1, characterized in that, It also includes a plurality of second light-emitting units disposed at intervals on the back side, wherein the positive and negative electrodes of each second light-emitting unit are electrically connected to the positive and negative electrodes of the physical port, respectively.

9. A backlight module, characterized in that, Includes a back panel, wherein the back panel is provided with at least one light strip as described in any one of claims 1 to 8.

10. A display, characterized in that, It includes a display panel and the backlight module as described in claim 9, wherein the display panel is disposed on the light-emitting side of the backlight module.

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