Light bar substrate, light bar, backlight module and display device

Abstract

The application relates to a lamp strip substrate, a lamp strip, a backlight module and a display device, and relates to the technical field of display devices. The application aims to solve the problems of product diversification caused by poor universality of LED lamp strips and high cost caused by the product diversification. The lamp strip substrate comprises a substrate main body, a first light-emitting area and a second light-emitting area, and the first light-emitting area and the second light-emitting area are arranged on the same side of the substrate main body. The first light-emitting area is provided with N lamp bead mounting positions, the second light-emitting area is provided with N+M lamp bead mounting positions, and at least one of the first light-emitting area and the second light-emitting area is used for mounting lamp beads. Wherein, N is a positive integer greater than 1, and M is a positive integer greater than or equal to 1.

Description

Technical Field

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

[0002] In the field of display devices, display panels, backlight modules, and LED (Light Emitting Diode) light strips form a hierarchical collaborative system of "image presentation - light supply - light source core". Among them, LED light strips are the core light source components of the backlight module. The number of LEDs on the LED light strips directly determines the light output characteristics of the backlight module, thereby affecting the image quality and scene adaptation of the display device.

[0003] Because different display device models vary in indicators such as brightness, color gamut, and uniformity, they have different requirements for the number of LED chips in LED strips to meet these varying requirements. During the production and inventory preparation stage, these differences result in LED strips having various specifications depending on the number of LED chips, meaning that LED strips have a wide variety of inventory options, or product diversification.

[0004] Product diversification has led to a decrease in the purchase volume of individual models, which in turn increases the pressure on the allocation of fixed costs such as molds and fixtures. Summary of the Invention

[0005] This application provides a light strip substrate, light strip, backlight module and display device, which aims to solve the problems of product diversification caused by the poor versatility of LED light strips, and the resulting high cost.

[0006] In a first aspect, embodiments of this application provide a light strip substrate, including a substrate body, a first light-emitting area, and a second light-emitting area, wherein the first light-emitting area and the second light-emitting area are disposed on the same side of the substrate body. The first light-emitting area has N lamp bead mounting positions, and the second light-emitting area has N+M lamp bead mounting positions, wherein at least one of the first light-emitting area and the second light-emitting area is used to mount lamp beads. Wherein, N is a positive integer greater than 1, and M is a positive integer greater than or equal to 1.

[0007] In some embodiments, the LED strip substrate includes a first preset circuit and a second preset circuit. The first preset circuit is disposed in a first light-emitting area and is used to connect LEDs in series at the LED mounting positions. The second preset circuit is disposed in a second light-emitting area and is used to connect LEDs in series at the LED mounting positions.

[0008] In some implementations, the first preset circuit and the second preset circuit are connected in parallel.

[0009] In some embodiments, the substrate body has two oppositely arranged ends along its length. At the first end of the substrate body, a lamp bead mounting position is connected to a first preset circuit and a second preset circuit, and at the second end of the substrate body, a lamp bead mounting position is connected to the first preset circuit and the second preset circuit.

[0010] In some implementations, the first preset circuit and the second preset circuit are independent circuits.

[0011] In some embodiments, along the length of the substrate body, the lamp bead mounting positions in the first light-emitting area and the second light-emitting area are alternately arranged.

[0012] In some embodiments, the LED strip substrate further includes a third light-emitting area and a fourth light-emitting area, which are disposed on the same side of the substrate body and on opposite sides of the substrate body. The third light-emitting area has A LED mounting positions, and the fourth light-emitting area has A+B LED mounting positions. A is a positive integer greater than 1, and B is a positive integer greater than or equal to 1.

[0013] In this configuration, at least one of the first and second light-emitting areas is used to install LED chips; or, at least one of the third and fourth light-emitting areas is used to install LED chips.

[0014] Secondly, this application provides a light strip, including the light strip substrate of the first aspect and at least two LEDs, with the LEDs connected to the LED mounting positions.

[0015] In some implementations, the first light-emitting area is connected to N LEDs.

[0016] In some implementations, the second light-emitting area is connected to N+M LEDs.

[0017] In some implementations, the third light-emitting area is connected to A LEDs.

[0018] In some implementations, the fourth light-emitting area is connected to A+B LEDs.

[0019] Thirdly, this application provides a backlight module including at least one light strip as described in the second aspect.

[0020] Fourthly, this application also provides a display device, including the backlight module described in the third aspect.

[0021] The technical solutions provided in this application have the following advantages compared with the prior art: The substrate body has at least two sets of light-emitting areas. N LEDs are mounted in N LED mounting positions in the first light-emitting area to achieve a light strip adaptation scheme with N LEDs. Alternatively, N+M LEDs are mounted in N+M LED mounting positions in the second light-emitting area to achieve a light strip adaptation scheme with N+M LEDs. Multiple LEDs can also be mounted simultaneously in both the first and second light-emitting areas to achieve a third type of light strip adaptation scheme. In other words, a single integrated light strip substrate can achieve two or more LED mounting adaptation schemes. Traditional solutions require designing separate PCBs for each type of LED chip, necessitating the separate design and fabrication of corresponding molds for each PCB. With a fixed total number of LED strips, the more types of PCBs there are, the fewer of each type are needed. This results in a larger amortization of fixed costs such as design and mold costs, leading to higher production and procurement costs per PCB, and also increasing warehousing and management difficulties with multiple PCB types.

[0022] In this application, a first light-emitting area, a second light-emitting area, and even more types of light-emitting areas are set on a single substrate body, so that each light-emitting area has at least two or more LED chip mounting positions for mounting different numbers of LED chips. This allows a single substrate body to meet the application range of various specifications of LED strips by mounting different numbers of LED chips. This reduces the variety of LED strip substrates in stock and increases the stock quantity of that model of LED strip substrate. Thus, it reduces the number of LED strip substrate designs and the types of molds required for production, thereby reducing the fixed and amortized costs of the LED strip substrates. This is beneficial for reducing the costs of LED strip substrates, LED strips, backlight modules, and even imaging equipment. Furthermore, the difficulty of warehousing and managing fewer or even single-type LED strip substrates is significantly reduced, further compressing costs. Attached Figure Description The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0025] Figure 1 This is a schematic diagram of the connection structure of the first type of light strip provided in the embodiments of this application; Figure 2 This is a schematic diagram of the connection structure of the second type of light strip provided in the embodiments of this application; Figure 3 for Figure 2 A front view of the light strip shown; Figure 4 for Figure 3 A partially enlarged schematic diagram of the mounting position of the first LED chip; Figure 5 for Figure 3 A partially enlarged schematic diagram of the second LED chip mounting position; Figure 6 for Figure 3 A partially enlarged schematic diagram of the eighth LED chip mounting position; Figure 7 for Figure 3 A partially enlarged schematic diagram of the mounting position of the ninth LED chip; Figure 8 This is a schematic diagram of the connection structure of the third type of light strip provided in the embodiments of this application.

[0026] Explanation of reference numerals in the attached figures: 1000, LED strips; 100. LED strip substrate; 110. Substrate body; 111. Power connection area; 120. First light-emitting area; 130. Second light-emitting area; 140. LED bead mounting position; 141. First mounting position; 142. Second mounting position; 151. First preset circuit; 152. Second preset circuit; 153. Third preset circuit; 154. Fourth preset circuit; 160. Third light-emitting area; 170. Fourth light-emitting area; 200. LED beads. Detailed Implementation

[0027] 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 some embodiments of this application, 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.

[0028] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0029] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0030] Figure 1 This is a schematic diagram of the connection structure of the first type of light strip provided in the embodiments of this application. Figure 2 This is a schematic diagram of the connection structure of the second type of light strip provided in the embodiments of this application. Figure 3 for Figure 2 A front view of the light strip shown. Figure 4 for Figure 3 A magnified view of the first LED chip mounting position. Figure 5 for Figure 3 A magnified view of the second LED mounting position. Figure 6 for Figure 3 A magnified view of the eighth LED mounting position. Figure 7 for Figure 3 A magnified view of the ninth LED mounting position. Figure 8 This is a schematic diagram of the connection structure of the third type of light strip provided in the embodiments of this application.

[0031] Please see Figures 1 to 8This application provides a light strip substrate, a light strip, a backlight module, and a display device, aiming to solve the problems of product diversification caused by the poor versatility of LED light strips, and the resulting high costs.

[0032] Firstly, such as Figure 1 and Figure 2 As shown, this application embodiment provides a light strip 1000, including a light strip substrate 100 and at least two LED beads 200.

[0033] like Figure 2 , Figure 3 and Figure 4 As shown, the LED strip substrate 100 includes a substrate body 110, a first light-emitting area 120, and a second light-emitting area 130, which are located on the same side of the substrate body 110. The first light-emitting area 120 has N LED mounting positions 140, and the second light-emitting area 130 has N+M LED mounting positions 140. At least one of the first light-emitting area 120 and the second light-emitting area 130 is used to mount LEDs 200, that is, the LEDs 200 are mounted at the corresponding LED mounting positions 140. Here, N is a positive integer greater than 1, and M is a positive integer greater than or equal to 1.

[0034] The LED strip substrate 100 refers to the printed circuit board (PCB) that carries the circuit layout and mounts the LED chips 200. The substrate body 110 refers to the insulating substrate that carries the circuit layout and LED chips 200. The substrate body 110 can be made of FR-4 epoxy resin board or aluminum substrate. The length dimension of the substrate body 110 is adapted to the backlight module installation requirements.

[0035] The first light-emitting area 120 refers to the area on the substrate body 110 used to arrange the first group of lamp beads 200. For example, a series or parallel circuit can be formed by etching copper foil. Each lamp bead mounting position 140 is provided with two solder strip positions to meet the electrical connection of the lamp beads 200.

[0036] The second light-emitting area 130 refers to the area on the substrate used for mounting the second set of lamp beads 200. For example, such as... Figure 1 As shown, on the LED strip substrate 100, the second light-emitting area 130 and the first light-emitting area 120 can be independent of each other, that is, the LED beads 200 in the two areas have LED bead mounting positions 140 with different positions and different numbers. Or, as Figure 2 As shown, the second light-emitting area 130 and the first light-emitting area 120 can also partially overlap, so that some of the lamp bead mounting positions 140 in the two areas are overlapped. That is, the lamp bead 200 installed at the overlapping position belongs to both the first light-emitting area 120 and the second light-emitting area 130.

[0037] Alternatively, the first light-emitting area 120 and the second light-emitting area 130 can be at least partially staggered, so that the lamp bead mounting positions 140 in the two areas are alternately arranged along the length direction of the substrate body 110, or they can be alternated by one, two, or three intervals as needed, so that the lamp bead mounting positions 140 are distributed sequentially along the length direction. That is, the lamp bead mounting positions 140 of the first light-emitting area 120 and the lamp bead mounting positions 140 of the second light-emitting area 130 are alternately arranged along the length direction. This is beneficial for reducing the width dimension of the substrate body 110.

[0038] The LED mounting position 140 refers to the positioning structure used for soldering LED chips 200. The LED mounting position 140 has conductive contacts to allow the LED chip 200 to be connected to the circuit and illuminated. Furthermore, by soldering the LED chip 200 to the aforementioned conductive contacts, the LED chip 200 can be fixed to the substrate body 110.

[0039] For example, the substrate body 110 is arranged with at least two sets of light-emitting areas. N LEDs 200 are mounted at N LED mounting positions 140 in the first light-emitting area 120 to achieve a light strip 1000 adaptation scheme with N LEDs 200. Alternatively, N+M LEDs are mounted at N+M LED mounting positions 140 in the second light-emitting area 130 to achieve a light strip 1000 adaptation scheme with N+M LEDs 200. Multiple LEDs 200 can also be mounted simultaneously in the first light-emitting area 120 and the second light-emitting area 130 to achieve a third type of light strip 1000 adaptation scheme. That is, through an integrated light strip substrate 100, two or more LEDs 200 mounting adaptation schemes can be achieved.

[0040] Traditional solutions require designing separate PCBs for 200 of each type of LED chip. This necessitates designing and manufacturing corresponding molds for each PCB. With a total of 1000 LED strips remaining constant, the more types of PCBs there are, the fewer of each type are needed. This results in a larger amortization of fixed costs such as design and mold costs, leading to higher production and procurement costs per PCB. Furthermore, multiple PCB types also increase warehousing and management complexity.

[0041] In this application, by providing a first light-emitting area 120, a second light-emitting area 130, or even more types of light-emitting areas on a single substrate body 110, each light-emitting area has at least two or more lamp bead mounting positions 140 for mounting different numbers of lamp beads 200. This allows a single substrate body 110 to meet the application range of various specifications of light strips 1000 by mounting different numbers of lamp beads 200. This reduces the variety of light strip substrates 100 available, increasing the stock quantity of this model of light strip substrate 100. Consequently, it reduces the number of designs for light strip substrates 100 and the types of molds required for production, thereby lowering the fixed amortized cost of light strip substrates 100. This is beneficial for reducing the cost of light strip substrates 100, light strips 1000, backlight modules, and even imaging equipment. Furthermore, the reduced variety or even single type of light strip substrates 100 significantly reduces the difficulty of warehousing and management, further compressing costs.

[0042] In some embodiments, such as Figure 1 and Figure 2 As shown, the LED strip substrate 100 includes a first preset circuit 151 and a second preset circuit 152. The first preset circuit 151 is disposed in the first light-emitting area 120, and the first preset circuit 151 has a series contact at the LED mounting position 140 for connecting LEDs 200 in series. The second preset circuit 152 is disposed in the second light-emitting area 130, and the second preset circuit 152 has a series contact at the LED mounting position 140 for connecting LEDs in series.

[0043] Taking N=8, M=2 and the length of the substrate body 110 as an example, the substrate body 110 has a length of 800mm.

[0044] In the first light-emitting area 120, eight LED beads 200 can be connected in series through the first preset circuit 151, and the center distance between two adjacent LED beads 200 is 110mm, so as to realize the first assembly scheme of the number of LED beads 200.

[0045] In the second light-emitting area 130, ten LED beads 200 can be connected in series by the second preset circuit 152, and the center distance between two adjacent LED beads 200 is 85.55mm, so as to realize the second assembly scheme of LED beads 200.

[0046] Alternatively, LED beads 200 can be installed in both the first light-emitting area 120 and the second light-emitting area 130 simultaneously. In this case, the maximum number of LED beads 200 is eighteen, thus achieving a third installation scheme for the number of LED beads 200.

[0047] Thus, by setting the first preset circuit 151 and the second preset circuit 152, the substrate 100 can flexibly adjust the installation scheme of the lamp beads 200 to meet the requirements of different specifications and quantities of lamp bars 1000, and has a wide range of applications.

[0048] Alternatively, more light-emitting areas and preset circuits can be provided on the same side of the substrate body 110, and multiple preset circuits can be connected to different numbers of lamp beads 200, so as to further improve the applicability of the substrate body 110.

[0049] In some other embodiments, the first preset circuit 151 and the second preset circuit 152 may also connect multiple LEDs 200 in parallel. For example, at least two LEDs 200 may be connected in parallel in the first preset circuit 151, and multiple LEDs 200 may be connected in parallel in the second preset circuit 152. This is not a limitation.

[0050] In some embodiments, such as Figure 1 and Figure 6 As shown, the substrate body 110 also includes a power receiving area 111, which is used to connect to a power supply line. Alternatively, the power receiving area 111 is used to fix and install a power module, so that the power module can be connected to the first preset circuit 151 and the second preset circuit 152. The first preset circuit 151 and the second preset circuit 152 are arranged in parallel, that is, the two preset circuits are arranged in parallel with the power module (or at the two power receiving contacts).

[0051] The first preset circuit 151 and the second preset circuit 152, which are configured in parallel, can share part of the power supply lines, thereby saving the application of conductive metal. This also helps to reduce the area occupied by the preset circuits on the substrate body 110, thereby reducing the width or length of the substrate body 110. This saves on substrate consumption and reduces costs.

[0052] Alternatively, the first preset circuit 151 and the second preset circuit 152 can be set as independent circuits. The structure of independent circuits facilitates flexible arrangement on the substrate body 110, and the solution is simple.

[0053] Along the length of the substrate body 110, at least two LED beads 200 are spaced apart in the first light-emitting area 120 (second light-emitting area 130).

[0054] For example, such as Figure 1 As shown, the first light-emitting area 120 and the second light-emitting area 130 are distributed at intervals along the width direction of the substrate body 110. The first light-emitting area 120 is located on the upper side of the substrate body 110, and the second light-emitting area 130 is located on the lower side of the substrate body 110. An independent first preset circuit 151 is disposed in the first light-emitting area 120, and an independent second preset circuit 152 is disposed in the second light-emitting area 130.

[0055] In this way, the corresponding number of LED beads 200 can be installed only in the first light-emitting area 120 or the second light-emitting area 130. Alternatively, all the LED beads 200 can be installed in the first light-emitting area 120 and the second light-emitting area 130, which only requires connecting the corresponding power supply to the first preset circuit 151 and the second preset circuit 152, thus having a wider range of applications.

[0056] Or, such as Figure 2 and Figure 3 As shown, along the length of the substrate body 110, the lamp bead mounting positions 140 of the first light-emitting area 120 and the lamp bead mounting positions 140 of the second light-emitting area 130 can be arranged alternately. The number of alternating lamp bead mounting positions 140 of different types can be one, two or more, depending on the actual setting of the corresponding lamp bead mounting positions 140.

[0057] For example, such as Figure 3 As shown, the substrate body 110 has two opposite ends along its length, such as an upper end and a lower end. At the first end of the substrate body 110 (such as the upper end), a lamp bead mounting position 140 is connected to a first preset circuit 151 and a second preset circuit 152, that is, the lamp bead mounting position 140 simultaneously belongs to the first light-emitting area 120 and the second light-emitting area 130. At the second end of the substrate body 110 (such as the lower end), a lamp bead mounting position 140 is connected to the first preset circuit 151 and the second preset circuit 152, that is, the lamp bead mounting position 140 simultaneously belongs to the first light-emitting area 120 and the second light-emitting area 130.

[0058] Taking N=8, M=2, and the length of the substrate body 110 as an example, the center distance between the two lamp bead mounting positions 140 at the upper and lower ends can be 770mm.

[0059] Based on this, such as Figure 3 , Figure 4 and Figure 5As shown, from top to bottom, the second LED mounting position 140 is located in the second light-emitting area 130, with a center distance of 85.55mm from the first LED mounting position 140. The third LED mounting position 140 is located in the first light-emitting area 120, with a center distance of 110mm from the first LED mounting position 140. The fourth LED mounting position 140 is located in the second light-emitting area 130, with a center distance of 171.1mm from the first LED mounting position 140. The fifth LED mounting position 140 is located in the first light-emitting area 120, with a center distance of 220mm from the first LED mounting position 140. The sixth LED mounting position 140 is located in the second light-emitting area 130, with a center distance of 256.65mm from the first LED mounting position 140. The seventh LED mounting position 140 is located in the first light-emitting area 120, with a center distance of 330mm from the first LED mounting position 140. The eighth LED mounting position 140 is located in the second light-emitting area 130, with a center-to-center distance of 342.2 mm from the first LED mounting position 140. The ninth LED mounting position 140 is located in the second light-emitting area 130, with a center-to-center distance of 427.8 mm from the first LED mounting position 140. The tenth LED mounting position 140 is located in the first light-emitting area 120, with a center-to-center distance of 440 mm from the first LED mounting position 140. The eleventh LED mounting position 140 is located in the second light-emitting area 130, with a center-to-center distance of 513.35 mm from the first LED mounting position 140. The twelfth LED mounting position 140 is located in the first light-emitting area 120, with a center-to-center distance of 550 mm from the first LED mounting position 140. The thirteenth LED mounting position 140 is located in the second light-emitting area 130, with a center-to-center distance of 598.9 mm from the first LED mounting position 140. The fourteenth LED mounting position 140 is located in the first light-emitting area 120, with a center distance of 660mm from the first LED mounting position 140. The fifteenth LED mounting position 140 is located in the second light-emitting area 130, with a center distance of 684.45mm from the first LED mounting position 140. The sixteenth (and last) LED mounting position 140 is located in both the first and second light-emitting areas 120 and 130, with a center distance of 770mm from the first LED mounting position 140.

[0060] For example, such as Figure 5 and Figure 6 As shown, a power connection area 111 is provided on the substrate body 110 between the eighth and ninth LED mounting positions 140. This power connection area 111 is used to install a power module, so that the positive terminal of the power module is connected to the ninth and tenth LED mounting positions 140, and the negative terminal of the power module is connected to the eighth and seventh LED mounting positions 140.

[0061] like Figure 3 and Figure 4 As shown, at the first LED mounting position 140, one of its contacts is simultaneously connected to the second and third LED mounting positions 140, and its other contact is connected to one of the contacts of the sixteenth LED mounting position 140. The other contact of the sixteenth LED mounting position 140 is connected to both the fifteenth LED mounting position 140 and the fourteenth LED connection position.

[0062] Thus, through the above solution, the substrate body 110 can simultaneously meet the design and arrangement of the first preset circuit 151 and the second preset circuit 152 within a narrow width range, and the lamp strip substrate 100 can meet the assembly scheme of at least two different numbers of lamp beads 200.

[0063] With the sixteen (or 2N+M-2) LED mounting positions 140 not interfering with each other, the above-mentioned LED strip substrate 100 can also realize a third (i.e., all) number of LEDs 200 assembly scheme.

[0064] The above solution applies only to the solution where a light-emitting area is set on one side of the substrate body 110.

[0065] In some other embodiments, such as Figure 8 As shown, the light strip substrate 100 also includes a third light-emitting area 160 and a fourth light-emitting area 170, which are disposed on the same side of the substrate body 110, and the third light-emitting area 160 and the first light-emitting area 120 (as shown) Figure 1 (As shown) are located on opposite sides of the substrate body 110. The third light-emitting area 160 has A lamp bead mounting positions 140, and the fourth light-emitting area 170 has A+B lamp bead mounting positions 140. Wherein, A is a positive integer greater than 1, and B is a positive integer greater than or equal to 1.

[0066] At least one of the first light-emitting area 120 and the second light-emitting area 130 is used to install LED chips. Alternatively, at least one of the third light-emitting area 160 and the fourth light-emitting area 170 is used to install LED chips.

[0067] For example, along the length of the substrate body 110, the center-to-center distance between two adjacent lamp bead mounting positions 140 in each light-emitting area is equal.

[0068] Taking N=8, M=2, A=6, B=3 as an example, on the side of the substrate body 110 where the first light-emitting area 120 and the second light-emitting area 130 are provided, the lamp strip substrate 100 can realize three installation schemes of eight, ten, and eighteen lamp beads 200. At least two installation schemes of eight and ten lamp beads 200 can also be realized.

[0069] On the side of the substrate body 110 where the third light-emitting area 160 and the fourth light-emitting area 170 are provided, the light strip substrate 100 can realize three mounting schemes for six, nine, and fifteen LED chips 200. At least two mounting schemes for six and nine LED chips 200 can also be realized. This further improves the applicability of the light strip substrate 100.

[0070] It should be noted that, in order to improve the applicability of the LED strip substrate 100, N is not equal to A and N+M is not equal to A+B. In different installation schemes with different numbers of LED beads 200, power supply modules of different specifications and types can be installed to provide power, thereby improving the operational stability of the LED strip 1000.

[0071] Among them, such as Figure 8 As shown, the substrate body 110 is provided with a third light-emitting area 160 and a fourth light-emitting area 170, and the lamp strip substrate 100 also includes a third preset circuit 153 and a fourth preset circuit 154. The third preset circuit 153 is disposed in the third light-emitting area 160, and the third preset circuit 153 is used to connect the lamp beads 200 in series at the lamp bead mounting position 140 (e.g., Figure 8 (As shown). The fourth preset circuit 154 is set in the fourth light-emitting area 170, and the fourth preset circuit 154 is used to connect the lamp beads 200 in series at the lamp bead mounting position 140.

[0072] In this embodiment, the third light-emitting area 160 and the fourth light-emitting area 170 can be set in the same manner as the first light-emitting area 120 and the second light-emitting area 130. Only the spacing and installation position between two adjacent lamp bead mounting positions 140 need to be adjusted accordingly.

[0073] Correspondingly, the third preset circuit 153 and the fourth preset circuit 154 can be set in the same way as the first preset circuit 151 and the second preset circuit 152. Only the node contacts at the corresponding lamp bead mounting positions 140 need to be adjusted accordingly, and there are no restrictions on this.

[0074] It should be noted that at the LED bead mounting position 140 of the LED strip substrate 100, the structure of the substrate body 110 is adjusted to accommodate the installation of LED beads 200 in different packaging forms, such as bracket packaging, chip-level packaging, on-board chip packaging, and near-chip-level packaging.

[0075] In particular, the lens shape of the LED lamp bead 200 can also be adjusted by adjusting the structure of the substrate body 110 to meet the compatibility of the same or different lens combinations such as refraction and reflection, thereby further improving the adaptability of the lamp strip substrate 100.

[0076] Secondly, embodiments of this application also provide a backlight module, which includes at least one light strip 1000 as described in the first aspect. Since this backlight module utilizes all the light strips 1000 from the first aspect, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0077] Thirdly, embodiments of this application also provide a display device that includes the backlight module described in the third aspect. Since this display device employs the backlight module described in the second aspect, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated further here.

[0078] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “” used herein may also indicate the inclusion of the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated, unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0079] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0080] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A light strip substrate, characterized in that, It includes a substrate body (110), a first light-emitting area (120) and a second light-emitting area (130), wherein the first light-emitting area (120) and the second light-emitting area (130) are disposed on the same side of the substrate body (110); The first light-emitting area (120) is provided with N lamp bead mounting positions (140), and the second light-emitting area (130) is provided with N+M lamp bead mounting positions (140). At least one of the first light-emitting area (120) and the second light-emitting area (130) is used to install lamp beads. Where N is a positive integer greater than 1, and M is a positive integer greater than or equal to 1.

2. The light strip substrate according to claim 1, characterized in that, The light bar substrate includes: A first preset circuit (151) is disposed in the first light-emitting area (120), and the first preset circuit (151) is used to connect the lamp beads in series at the lamp bead mounting position (140); And a second preset circuit (152) is disposed in the second light-emitting area (130), the second preset circuit (152) is used to connect the lamp beads in series at the lamp bead mounting position (140).

3. The light strip substrate according to claim 2, characterized in that, The first preset circuit (151) and the second preset circuit (152) are connected in parallel.

4. The light strip substrate according to claim 3, characterized in that, The substrate body (110) has two opposite ends along its length. At the first end of the substrate body (110), a lamp bead mounting position (140) is connected to the first preset circuit (151) and the second preset circuit (152). At the second end of the substrate body (110), a lamp bead mounting position (140) is connected to the first preset circuit (151) and the second preset circuit (152).

5. The light strip substrate according to claim 2, characterized in that, The first preset circuit (151) and the second preset circuit (152) are independent circuits.

6. The light strip substrate according to any one of claims 1-5, characterized in that, Along the length direction of the substrate body (110), the lamp bead mounting positions (140) of the first light-emitting area (120) and the lamp bead mounting positions (140) of the second light-emitting area (130) are alternately arranged.

7. The light strip substrate according to any one of claims 1-5, characterized in that, The light strip substrate further includes a third light-emitting area (160) and a fourth light-emitting area (170), the third light-emitting area (160) and the fourth light-emitting area (170) are disposed on the same side of the substrate body (110), and the third light-emitting area (160) and the fourth light-emitting area (170) are located on opposite sides of the substrate body (110). The third light-emitting area (160) is provided with A lamp bead mounting positions (140), and the fourth light-emitting area (170) is provided with A+B lamp bead mounting positions (140). At least one of the first light-emitting area (120), the second light-emitting area (130), the third light-emitting area (160) and the fourth light-emitting area (170) is used to install lamp beads. Where A is a positive integer greater than 1, and B is a positive integer greater than or equal to 1.

8. A light strip, characterized in that, It includes a light strip substrate as described in any one of claims 1-7 and at least two LED beads (200), the LED beads (200) being connected to the LED bead mounting position (140).

9. A backlight module, characterized in that, It includes at least one light strip as described in claim 8.

10. A display device, characterized in that, Includes the backlight module as described in claim 9.

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