Backlight assembly, earphone charging box and Bluetooth earphone

Abstract

The utility model discloses a backlight assembly, an earphone charging box and a Bluetooth earphone, and relates to the technical field of Bluetooth earphones, the backlight assembly is used for the earphone charging box, the earphone charging box comprises a box body, a first installation position is arranged in the box body, and a light transmission part is arranged at a position, corresponding to the first installation position, in the outer wall of the box body; the backlight assembly comprises a backlight display panel and a display control panel. The backlight display panel is arranged at the first mounting position and is provided with a light-emitting surface, and the light-emitting surface is arranged towards the light-transmitting part; a plurality of display units are arranged on the light emitting surface and are used for displaying a target pattern; the display control panel is arranged at the first installation position, the display control panel is connected with the multiple display units of the backlight display panel and used for controlling the multiple display units to display one by one, and after the backlight assembly is applied to the earphone charging box, the use interestingness of a Bluetooth earphone can be improved, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of Bluetooth headset technology, and in particular to a backlight assembly, a headset charging case, and Bluetooth headsets. Background Technology

[0002] The earphone charging case is used to charge the earphones when they are inserted into the charging slot. However, most current earphone charging cases focus on improving the performance and charging efficiency of the charging case, but there are few related designs for when they are not charging, resulting in a poor user experience of existing earphone charging cases. Utility Model Content

[0003] The main purpose of this invention is to provide a backlight assembly, an earphone charging case, and Bluetooth earphones, aiming to improve the user experience of the earphone charging case.

[0004] To achieve the above objectives, this utility model proposes a backlight assembly for an earphone charging case. The earphone charging case includes a case body, a first mounting position is provided inside the case body, and a light-transmitting part is provided on the outer wall of the case body at a position corresponding to the first mounting position.

[0005] The backlight assembly includes:

[0006] A backlight display panel is disposed at the first mounting position. The backlight display panel has a light-emitting surface, which faces the light-transmitting portion. The light-emitting surface has a plurality of display units, which are used to display a target pattern.

[0007] The display control board is located at the first mounting position and is connected to a plurality of display units of the backlight display board for controlling the plurality of display units to display.

[0008] In one embodiment, the backlight display panel is an LED dot matrix display panel, and the display unit is an LED lamp bead in the LED dot matrix display panel.

[0009] In one embodiment, the LED dot matrix display panel has N row activation terminals and M column activation terminals, which define an N×M structure LED dot matrix display panel.

[0010] When any of the row activation terminals and any of the column activation terminals are activated, the corresponding LEDs light up.

[0011] In one embodiment, the display control board has N row driving terminals and M column driving terminals, with the N row driving terminals connected one-to-one with the N row activation terminals, and the M column driving terminals connected one-to-one with the M column activation terminals.

[0012] The row driver is used to activate the row activation terminal connected to it, and the column driver is used to activate the column activation terminal connected to it.

[0013] This utility model also provides an earphone charging case, the earphone charging case comprising:

[0014] The box body has a first mounting position and a second mounting position inside;

[0015] The main control module is located at the second mounting position; and,

[0016] The backlight assembly as described in any of the above claims is disposed at the first mounting position and is electrically connected to the charging module.

[0017] The outer surface of the box is provided with a light-transmitting part corresponding to the first mounting position, and the light-emitting surface of the backlight assembly is arranged facing the light-transmitting part so as to display the target pattern through the light-transmitting part.

[0018] In one embodiment, the housing includes:

[0019] A bottom shell, on which a first groove is provided;

[0020] The cover has a second groove and is rotatably connected to the bottom shell. When the cover is rotated to the point where the bottom shell is closed, the first groove and the second groove are closed to form an earphone mounting groove.

[0021] The cover shell has a first mounting position inside, and the bottom shell has a second mounting position inside.

[0022] In one embodiment, a flexible printed circuit board is provided at the connection position between the bottom shell and the cover shell. The first end of the flexible printed circuit board is connected to the backlight assembly, and the second end of the flexible printed circuit board is connected to the main control module.

[0023] In one embodiment, the main control module includes a main control board and a battery connected to each other, the main control board being connected to a second end of the flexible printed circuit board;

[0024] The display control board of the backlight assembly is connected to the first end of the flexible printed circuit board.

[0025] In one embodiment, the light-emitting surface of the backlight assembly has multiple light-emitting areas, and the light-transmitting part has light-shielding parts that are staggered and adapted to the multiple light-emitting areas. The light-shielding parts are used to cooperate with the light-emitting areas to display a target pattern.

[0026] This utility model also provides a Bluetooth headset, which includes a headset body and a headset charging case as described in any of the above.

[0027] The backlight assembly in this invention enhances the user experience of the earphone charging case through the collaborative operation of the backlight display panel and the display control board. Multiple display units on the backlight display panel can display diverse target patterns, such as charging progress, battery status, or personalized designs. The display control board controls the display of corresponding display units on the backlight display panel to combine and display the corresponding target patterns, providing intuitive visual feedback. Thus, through engaging patterns, dynamic effects, and personalized customization options, the product's interactivity and technological appeal are increased, while the human-computer interaction experience is optimized, allowing users to experience greater convenience and enjoyment during use, comprehensively improving the overall user experience of the Bluetooth earphones. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of the backlight assembly and earphone charging case in this utility model;

[0030] Figure 2 This is a circuit diagram of one embodiment of the backlight display panel in this utility model;

[0031] Figure 3 This is a circuit diagram of one embodiment of the display control board in this utility model;

[0032] Figure 4 This is a circuit diagram of an embodiment of the flexible printed circuit board in this utility model;

[0033] Figure 5 This is a structural schematic diagram of an embodiment of the earphone charging case of this utility model.

[0034] Explanation of icon numbers:

[0035] 10. Backlight assembly; 100. Backlight display panel; 110. Light-emitting surface; 200. Display control panel;

[0036] 20. Earphone charging case; 300. Case body; 310. Bottom shell; 311. Upper bottom plate; 312. Lower bottom plate; 320. Cover shell; 321. Upper cover plate; 322. Lower cover plate; 330. Earphone mounting slot; 340. First mounting position; 350. Second mounting position; 360. Light-transmitting part; 400. Main control module; 410. Main control board; 420. Battery; 500. Flexible printed circuit board.

[0037] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0039] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0040] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0041] The earphone charging case is used to charge the earphones when they are inserted into the charging slot. However, most current earphone charging cases focus on improving the performance and charging efficiency of the charging case, resulting in a poor user experience for existing Bluetooth earphones.

[0042] To improve the user experience of Bluetooth headphones, such as Figure 1As shown, this utility model proposes a backlight assembly 10, which is used in an earphone charging case 20. The earphone charging case 20 includes a case body 300, a first mounting position 340 is provided inside the case body 300, and a light-transmitting part 360 is provided in the outer wall of the case body 300 at a position corresponding to the first mounting position 340.

[0043] Understandably, the housing 300 is the main structural part of the earphone charging case 20, used to house and protect the wireless earphones and provide power to them. Typically, the housing 300 is made of durable materials with a certain degree of impact resistance to ensure the safety of the internal earphones. The housing 300 has a first mounting position 340 and a light-transmitting portion 360. The first mounting position 340 is located inside the housing 300 and serves as the mounting point for the backlight assembly 10, ensuring that the backlight assembly 10 can be securely placed inside the charging case. The light-transmitting portion 360 is located on the outer wall of the housing 300 at a position corresponding to the first mounting position 340. This light-transmitting portion 360 allows light to pass through the internal backlight display panel 100 to the outside, allowing the user to see information or patterns on the display panel.

[0044] Optionally, the 360° light-transmitting part is made of transparent or semi-transparent material, which can clearly display the content while maintaining the overall aesthetics of the charging case.

[0045] Optionally, the light-transmitting part 360 is integrally formed with the outer surface of the box body 300, or the light-transmitting part 360 is the outer surface of the box body 300, or the outer surface of the box body 300 has a notch, and the light-transmitting part 360 can be installed at the notch.

[0046] It is understood that the light-transmitting part 360 is provided in the outer wall of the housing 300 at a position corresponding to the first mounting position 340. Optionally, the corresponding position, i.e., the light-transmitting part 360, is directly facing the backlight assembly 10 on the first mounting position 340.

[0047] In one embodiment, such as Figure 1 and Figure 5 As shown, the backlight assembly 10 includes a backlight display panel 100 and a display control panel 200. The display control panel 200 is used to control the backlight display panel 100 to display corresponding patterns in order to improve the user experience of the Bluetooth headset.

[0048] In this embodiment, a backlight display panel 100 is disposed at the first mounting position 340. The backlight display panel 100 has a light-emitting surface 110, which is disposed facing the light-transmitting portion 360. The light-emitting surface 110 has a plurality of display units, which are used to display a target pattern.

[0049] Understandably, the backlit display panel 100 has a light-emitting surface 110, which is positioned directly opposite the light-transmitting portion 360° on the outer wall of the charging case, ensuring that the information on the display panel can be clearly conveyed to the user. The light-emitting surface 110 of the backlit display panel 100 has multiple display units, which can be combined to form various target patterns, such as power indicators, charging status, and connection status. Furthermore, the display units can also be used to display interesting or personalized patterns, such as brand logos, animated icons, or user-defined patterns, thereby increasing the product's appeal and personalization.

[0050] Optionally, the light-emitting surface 110 refers to the side of the backlight display panel 100 that directly faces the user, and is used to transmit the light generated by the display unit outward so that the user can clearly see the displayed content. This light-emitting surface 110 may be specially treated to ensure that light can pass through uniformly and efficiently, and to minimize light loss and distortion. Optionally, the light-emitting surface 110 can be set with a specific output viewing angle to ensure that the user can clearly see the displayed information even when viewed from different angles.

[0051] Optionally, the display units are the basic elements that constitute the images or patterns on the illuminated surface 110. These display units can be LED beads, LCD panels, or other types of light-emitting elements. Each display unit can be controlled independently, and different display units can be programmed to display different colors or brightness levels, thereby combining to form various complex patterns, text, or animations.

[0052] In this embodiment, the display control board 200 is disposed at the first mounting position 340. The display control board 200 is connected to a plurality of display units of the backlight display board 100 and is used to control the plurality of display units to display.

[0053] It should be noted that the specific size of the backlit display panel 100 can be determined based on the size of the Bluetooth headset charging case 20, or based on the content or pattern to be displayed. The specific size is not limited here.

[0054] Understandably, the display control board 200 works in conjunction with the backlight display board 100 to manage and control the various display units on the display board. In one feasible embodiment, the display control board 200 is also positioned at the first mounting position 340 and directly connected to the backlight display board 100, used to control the illumination of each display unit according to different operating scenarios and states to display corresponding patterns or information. This not only provides rich information display methods but also enhances the user's interactive experience.

[0055] In summary, the backlight assembly 10 in this invention enhances the user experience of the earphone charging case 20 through the collaborative operation of the backlight display panel 100 and the display control board 200. The multiple display units on the backlight display panel 100 can display diverse target patterns, such as charging progress, battery status, or personalized designs. The display control board 200 controls the display of corresponding display units on the backlight display panel 100 to combine and display the corresponding target patterns, providing intuitive visual feedback. Thus, through engaging patterns, dynamic effects, and personalized customization options, the product's interactivity and technological feel are increased, while the human-computer interaction experience is optimized, allowing users to experience greater convenience and enjoyment during use, comprehensively improving the overall user experience of the Bluetooth earphones.

[0056] In one embodiment, such as Figure 2 As shown, the backlight display panel 100 is an LED dot matrix display panel, and the display unit is the LED lamp bead in the LED dot matrix display panel.

[0057] In this embodiment, the backlight display panel 100 adopts the form of an LED dot matrix display panel, which is a display device composed of multiple LED beads arranged in a matrix. Each LED bead serves as a display unit and can be independently controlled to turn on, off, or adjust its brightness.

[0058] In one feasible implementation, the combined states of these LED beads are controlled by programming, with the programming control logic integrated into the display control board 200. Thus, the display control board 200 can control the LED dot matrix display to form various patterns, text, or dynamic effects. For example, it can be used to display the battery status of the earphone charging case 20 (e.g., using different icons to indicate charging, fully charged, or low battery), Bluetooth connection status, and even some fun animations or personalized patterns. This design is not only powerful but also significantly enhances the product's technological feel and interactivity.

[0059] Understandably, compared to traditional monochrome indicator lights, LED dot matrix display panels offer advantages in terms of high flexibility and richness of information delivery. Because each LED can be individually controlled, it can display complex and diverse content, providing users with more intuitive and clearer information feedback.

[0060] In one embodiment, the LED dot matrix display panel has N row activation terminals and M column activation terminals, which define an N×M structure LED dot matrix display panel; when any of the row activation terminals and any of the column activation terminals are activated, the LED at the corresponding position lights up.

[0061] In this embodiment, the LED dot matrix display panel has N row activation terminals and M column activation terminals, corresponding to the rows and columns of the dot matrix, respectively. By activating specific rows and columns, one or more LED beads in the dot matrix can be precisely selected to light up. For example, when the row activation terminal of the i-th row and the column activation terminal of the j-th column are activated simultaneously, the LED bead located at the intersection of the i-th row and the j-th column will light up.

[0062] It is understandable that an N×M structured LED dot matrix display panel can contain a total of N×M LED beads (i.e., display units). For example, if N=8 and M=8, then the LED dot matrix display panel is an 8×8 matrix with a total of 64 LED beads. By controlling the activation state of rows and columns, any one or more LEDs can be flexibly lit to form different patterns, text, or dynamic effects.

[0063] It's also understandable that an 8x8 LED dot matrix display panel can contain fewer than 64 LEDs, such as 60. This means that LEDs aren't installed in all possible locations, thus preventing patterns from appearing in places where they shouldn't be. Alternatively, depending on the actual display requirements, LEDs in areas where lighting isn't needed can be omitted, reducing unnecessary resource waste.

[0064] In one feasible implementation, the LED dot matrix display panel operates based on row and column scanning technology. The display control board 200 sequentially and rapidly activates each row and its corresponding column, utilizing the persistence of vision effect to make the user perceive that all LEDs that need to be lit are lit simultaneously. For example, when a single LED needs to be lit, to light up the LED located in the 2nd row and 3rd column, only the row activation terminal of the 2nd row and the column activation terminal of the 3rd column need to be activated. When multiple LEDs need to be lit, the corresponding LEDs can be activated row by row and column by column through rapid scanning, ultimately presenting a complete pattern or text.

[0065] Therefore, the corresponding patterns can be directly displayed through this N×M structure LED dot matrix display panel, thereby enhancing the user's enjoyment.

[0066] In one feasible implementation, such as Figure 2 As shown, the LED dot matrix display panel is a 16×9 LED dot matrix display panel, where SEG1-SEG16 are row activation terminals and GD1-GD9 are column activation terminals. If it is necessary to display the LED beads in the second row and second column, only SEG2 and GD2 need to be activated simultaneously. It can be understood that from... Figure 2 As can be seen from this, there are several positions without LED beads, such as the first and second columns in the sixth row. This is to prevent certain positions where patterns should not be displayed from having patterns.

[0067] In one embodiment, such as Figure 3 As shown, the display control board 200 has N row driving terminals and M column driving terminals. The N row driving terminals are connected one-to-one with the N row activation terminals, and the M column driving terminals are connected one-to-one with the M column activation terminals. The row driving terminals are used to activate the row activation terminals connected to them, and the column driving terminals are used to activate the column activation terminals connected to them.

[0068] For ease of understanding, subsequent LED beads need to satisfy the requirement that the corresponding row activation end is activated, i.e., the first activation state, and also need to satisfy the requirement that the corresponding column activation end is activated, i.e., the second activation state.

[0069] In this embodiment, the row driving terminal and the row activation terminal are connected, with each row driving terminal of the display control board 200 controlling its corresponding row activation terminal. When a row driving terminal is activated, it sends a signal to the corresponding row activation terminal, causing all LED beads in that row to be in a first activated state. Subsequently, each column driving terminal of the display control board 200 is also connected to a column activation terminal one-to-one. When a column driving terminal is activated, the LED beads in that column enter a second activated state. If an LED bead is simultaneously in both the first and second activated states, it will light up.

[0070] In summary, the display control board 200 illuminates the LED beads located at the intersection of a row and a column by simultaneously activating a row driver and a column driver. For example, if the 3rd row driver and the 5th column driver are activated simultaneously, the LED beads located at the intersection of the 3rd row and the 5th column will be illuminated. Through the coordinated operation of the row and column drivers, the display control board 200 only needs N+M driver ports to control N×M LED beads, significantly reducing the number of control signals required.

[0071] In one feasible implementation, such as Figure 3 As shown, SEG1-SEG16 of the display control board 200 are row driving terminals, and GD1-GD9 are column driving terminals; among them, the SEG1 row driving terminal and the SEG1 row activation terminal are connected accordingly, and so on, without further details.

[0072] This utility model also provides an earphone charging case 20, such as Figure 5 As shown, the earphone charging case 20 includes a case body 300, a main control module 400, and a backlight assembly 10. It should be noted that the specific structure of the backlight assembly 10 is the same as described in the above embodiments. Since the earphone charging case 20 proposed in this utility model includes all solutions of all embodiments of the backlight assembly 10, it has at least the same technical effects as the backlight assembly 10, and will not be elaborated further here.

[0073] In one embodiment, such as Figure 5 As shown, the housing 300 has a first mounting position 340 and a second mounting position 350 inside; the main control module 400 is disposed in the second mounting position 350; the backlight assembly 10 is disposed in the first mounting position 340 and is electrically connected to the charging module; a light-transmitting part 360 is provided on the outer surface of the housing 300 corresponding to the position of the first mounting position 340, and the light-emitting surface 110 of the backlight assembly 10 is disposed facing the light-transmitting part 360 so as to display the target pattern through the light-transmitting part 360.

[0074] In this embodiment, the housing 300 is used to house and protect the wireless earphones and provide power to them. The housing 300 has a first mounting position 340 and a second mounting position 350 inside. The first mounting position 340 is used to house the backlight assembly 10, ensuring that the backlight assembly 10 can be securely placed inside the charging case. The second mounting position 350 is used to house the main control module 400, ensuring its normal operation without interference from other components.

[0075] In this embodiment, the main control module 400 is used to control the operation logic of the entire earphone charging case 20, such as charging control, power management, Bluetooth connection, etc.

[0076] In this embodiment, the backlight assembly 10 is used to display various patterns or status information on the earphone charging case 20 to enhance the user experience.

[0077] Understandably, a light-transmitting portion 360 is provided on the outer wall of the charging case 300 at the position corresponding to the first mounting position 340. The light-emitting surface 110 of the backlight assembly 10 is positioned directly opposite the light-transmitting portion 360 on the outer wall of the charging case to ensure that the information on the display panel can be clearly transmitted to the user. This allows the user to clearly see the displayed information even when viewed from different angles.

[0078] In summary, this utility model provides an earphone charging case 20 that integrates a backlight component 10. Through the optimization of the internal structure and component layout, as well as the 360° design of the external light-transmitting part, a more user-friendly and technologically advanced product experience is achieved, thereby providing a higher level of user experience.

[0079] In one embodiment, such as Figure 5As shown, the housing 300 includes a bottom shell 310 and a top shell 320. The bottom shell 310 has a first groove; the top shell 320 has a second groove. The top shell 320 and the bottom shell 310 are rotatably connected. When the top shell 320 is rotated to the point where the bottom shell 310 is closed, the first groove and the second groove are closed to form an earphone mounting slot 330. The top shell 320 has a first mounting position 340 inside, and the bottom shell 310 has a second mounting position 350 inside.

[0080] In this embodiment, the housing 300 adopts a split design, consisting of a bottom shell 310 and a top shell 320, which are rotatably connected to achieve the opening and closing function. When the top shell 320 rotates relative to the bottom shell 310 and is fully closed, the first groove and the second groove together form a complete earphone mounting slot 330. This not only ensures that the earphones are securely fixed in the mounting slot during charging, but also provides additional protection for the earphones through the enclosed structure.

[0081] Furthermore, the rotatable connection between the bottom shell 310 and the cover shell 320 enhances ease of use; users can easily open and close the cover shell 320 to remove or insert the earphones, making the operation simple and intuitive. Optionally, the rotatable connection between the bottom shell 310 and the cover shell 320 is achieved through one or more hinge mechanisms, thereby enabling the opening and closing of the charging case. The hinges can be made of durable materials such as metal or high-strength plastic to ensure long-term reliability.

[0082] It should be noted that the specific positions of the first mounting position 340 and the second mounting position 350 are not limited here. Both can be located on the bottom shell 310, both on the cover shell 320, or one on the cover shell 320 and the other on the bottom shell 310. Furthermore, the orientation of the light-emitting surface of the backlight assembly 10 is not limited here. It can face the outside of the earphone charging case 20 or the inside of the earphone charging case 20. Here, the outside refers to the exposed outside after the bottom shell 310 and the cover shell 320 are closed, which the user can directly see; the inside refers to the sealed inside after the bottom shell 310 and the cover shell 320 are closed, which the user can observe when the bottom shell 310 and the cover shell 320 are open.

[0083] In this embodiment, the bottom shell 310 has a first mounting position 340 inside, and the cover shell 320 has a second mounting position 350 inside.

[0084] Understandably, the first mounting position 340 and the second mounting position 350 are respectively located in the bottom shell 310 and the cover shell 320, allowing the main control module 400 and the backlight assembly 10 to be rationally distributed in two parts of the earphone charging case 20. This optimizes the use of internal space and avoids the increased thickness caused by concentrating the main control module 400 and the backlight assembly 10 in one place. If both the main control module 400 and the backlight assembly 10 were located in the bottom shell 310 or the cover shell 320, that part would be abnormally thick and heavy, affecting the overall aesthetics and portability of the product, and potentially negatively impacting the user's grip and user experience. Therefore, the first mounting position 340 and the second mounting position 350 are respectively located in the bottom shell 310 and the cover shell 320, ensuring ease of use and comfort, thereby comprehensively enhancing the user experience.

[0085] Secondly, by placing the backlight component 10 within the cover 320, the user's visual habits when using the earphone charging case 20 are utilized, greatly enhancing the intuitiveness and convenience of information delivery. Since the cover 320 is located on top of the charging case in most situations, and whether open, closed, or placed casually, it is usually facing the user or in a more easily visible position, the backlight component 10 can interact with the user more directly. For example, when the user opens the cover to take out the earphones, or simply checks the charging status without opening the cover, the backlight component 10 can use its advantageous position to display the image to the user. This helps to enhance the user experience.

[0086] Optionally, the earphone charging case 20 has a flat design, with both the bottom shell 310 and the cover shell 320 being flat. In this way, the backlight component 10 can be placed in the cover shell 320, which can have a larger display area and can display more patterns or information, thus enhancing the user experience.

[0087] In one embodiment, such as Figure 5 As shown, a flexible printed circuit board 500 is provided at the connection position between the bottom shell 310 and the cover shell 320. The first end of the flexible printed circuit board 500 is connected to the backlight assembly 10, and the second end of the flexible printed circuit board 500 is connected to the main control module 400.

[0088] In this embodiment, the flexible printed circuit board 500 establishes a bridge for signal and current transmission between the backlight assembly 10 and the main control module 400. By incorporating the flexible printed circuit board 500, its thin, light, and flexible characteristics allow it to adapt to the rotatable connection between the bottom shell 310 and the cover shell 320, effectively saving internal space and improving the overall design's compactness. Furthermore, through the connection of the flexible printed circuit board 500, the main control module 400 can precisely control the display content of the backlight assembly 10, further enhancing the functionality and user experience of the earphone charging case 20.

[0089] Optionally, the cover 320 includes an upper cover plate 321 and a lower cover plate 322, with the first mounting position 340 formed between the upper cover plate 321 and the lower cover plate 322, and the bottom cover 310 includes an upper bottom plate 311 and a lower bottom plate 312, with the second mounting position 350 formed between the upper bottom plate 311 and the lower bottom plate 312.

[0090] like Figure 3 The display control panel 200 shown and Figure 4 The flexible printed circuit board 500 shown has multiple interfaces corresponding to the display control board 200, namely: GND: Ground terminal, used to provide a reference potential in the circuit. DCLK: Data clock signal, used to synchronize data transmission. DIN: Data input terminal, used to receive data signals. OE: Output enable terminal, controls the validity of the output signal. G_CLK: Global clock signal, used to synchronize the operation of the entire system. G_DIN: Global data input terminal, used to receive global data signals. VDD: Positive power supply, providing operating voltage for the module. Thus, signal interaction between the main control module 400 and the backlight assembly 10 can be established through this flexible printed circuit board 500.

[0091] In one embodiment, such as Figure 5 As shown, the main control module 400 includes a main control board 410 and a battery 420 connected to each other. The main control board 410 is connected to the second end of the flexible printed circuit board 500; the display control board 200 of the backlight assembly 10 is connected to the first end of the flexible printed circuit board 500.

[0092] In this embodiment, the main control board 410 and the battery 420 are interconnected to achieve power supply and control functions. The main control board 410 is connected to the main control module 400 through the second end of the flexible printed circuit board 500, while the display control board 200 of the backlight assembly 10 is electrically connected to the main control module 400 through the first end of the flexible printed circuit board 500. Thus, by using the flexible printed circuit board 500 as a bridge for signal and power transmission, not only is the control of the backlight assembly 10 by the main control board 410 realized, and the transfer of power from the battery 420 to the backlight display board 100 by the main control board 410, but the internal structural layout is also optimized, improving space utilization.

[0093] In one embodiment, the light-emitting surface 110 of the backlight assembly 10 has a plurality of light-emitting areas, and the light-transmitting part 360 has light-shielding parts that are staggered and adapted to the plurality of light-emitting areas. The light-shielding parts are used to cooperate with the light-emitting areas to display a target pattern.

[0094] In this embodiment, the light-emitting surface 110 of the backlight assembly 10 includes multiple light-emitting areas, each of which can be independently controlled to emit light to display different information or patterns. To optimize the display effect, the light-transmitting part 360 of the device is designed with light-shielding parts that are staggered and adapted to these light-emitting areas. The function of the light-shielding parts is to precisely block areas that do not need to transmit light, ensuring that only specific light-emitting areas can transmit light, thereby forming clear target patterns or text. In this way, the close cooperation between the light-shielding parts and the light-emitting areas not only reduces visual interference caused by light overflow, but also improves the clarity and accuracy of the displayed content, allowing users to clearly see the required instruction information or personalized pattern display. Thus, the overall aesthetics of the product and the user experience can be further enhanced.

[0095] This utility model also provides a Bluetooth headset, which includes a headset charging case 20 as described in any of the above embodiments. It should be noted that the specific structure of the headset charging case 20 refers to the above embodiments. Since the Bluetooth headset proposed by this utility model includes all solutions of all embodiments of the above-described headset charging case 20, it has at least the same technical effects as the headset charging case 20, and will not be elaborated further here.

[0096] In one embodiment, the Bluetooth earphone includes an earphone body and an earphone charging case 20. In practical applications, the Bluetooth earphone can dynamically change the displayed content according to different states or user needs. For example, when the earphone body is playing music, specific patterns or animations can be displayed according to the user's personalized settings. When the Bluetooth earphone case is opened, specific patterns or animations can be displayed. In this way, not only is the user's convenience improved, but the interactivity and aesthetics of the product are also enhanced, providing users with a richer and more personalized user experience.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. 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 utility model, and they should all be covered within the scope of the claims and specification of this utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A backlight assembly (10) characterized by, The backlight assembly (10) is used in an earphone charging box (20), the earphone charging box (20) comprises a box body (300), the inside of the box body (300) is provided with a first mounting position (340), and the position corresponding to the first mounting position (340) in the outer wall of the box body (300) is provided with a light-transmitting part (360); The backlight assembly (10) comprises: A backlight display panel (100) is arranged in the first mounting position (340), the backlight display panel (100) has a light-emitting surface (110), and the light-emitting surface (110) is arranged towards the light-transmitting part (360); the light-emitting surface (110) has a plurality of display units, and the plurality of display units are used for displaying a target pattern; A display control panel (200) is arranged in the first mounting position (340), the display control panel (200) is connected with the plurality of display units of the backlight display panel (100), and is used for controlling the plurality of display units to display one by one.

2. The backlight assembly (10) of claim 1, wherein, The backlight display panel (100) is an LED dot matrix display panel, and the display unit is an LED lamp bead in the LED dot matrix display panel.

3. The backlight assembly (10) of claim 2, wherein, The LED dot matrix display panel has N row activation ends and M column activation ends, and the N row activation ends and the M column activation ends define an N*M structure LED dot matrix display panel; In the case that any of the row activation ends and any of the column activation ends are activated, the corresponding position LED is lighted.

4. The backlight assembly (10) of claim 3, wherein, The display control panel (200) has N row drive ends and M column drive ends, the N row drive ends are connected with the N row activation ends one by one, and the M column drive ends are connected with the M column activation ends one by one; The row drive end is used for activating the row activation end connected therewith, and the column drive end is used for activating the column activation end connected therewith.

5. An earphone charging case (20), characterized in that, The earphone charging box (20) comprises: A box body (300) has an inside with a first mounting position (340) and a second mounting position (350); A main control module (400) is arranged in the second mounting position (350); and The backlight assembly (10) of any one of claims 1 to 4 is arranged in the first mounting position (340) and is electrically connected with the charging module; The position corresponding to the first mounting position (340) on the outer surface of the box body (300) is provided with a light-transmitting part (360), and the light-emitting surface (110) of the backlight assembly (10) is arranged towards the light-transmitting part (360) to display a target pattern through the light-transmitting part (360).

6. The earphone charging case (20) of claim 5, wherein, The box body (300) comprises: A bottom shell (310) is provided with a first groove on the bottom shell (310); A cover shell (320) is provided with a second groove on the cover shell (320), and the cover shell (320) is rotatably connected with the bottom shell (310); when the cover shell (320) is rotated to be closed with the bottom shell (310), the first groove and the second groove are closed to form an earphone mounting groove (330); The first mounting position (340) is arranged in the cover shell (320), and the second mounting position (350) is arranged in the bottom shell (310).

7. The earphone charging case (20) of claim 6, wherein, The flexible printed circuit board (500) is arranged at the connecting position of the bottom shell (310) and the cover shell (320), the first end of the flexible printed circuit board (500) is connected to the backlight assembly (10), and the second end of the flexible printed circuit board (500) is connected to the main control module (400).

8. The earphone charging case (20) of claim 7, wherein, The main control module (400) comprises a main control board (410) and a battery (420) connected to each other, the main control board (410) is connected to the second end of the flexible printed circuit board (500); The display control board (200) of the backlight assembly (10) is connected to the first end of the flexible printed circuit board (500).

9. The earphone charging case (20) of claim 5, wherein, The light emitting surface (110) of the backlight assembly (10) has a plurality of light emitting areas, the light transmitting part (360) has a light shielding part adapted to the plurality of light emitting areas, and the light shielding part is used for displaying a target pattern in cooperation with the light emitting areas.

10. A Bluetooth earpiece, characterized in that, The Bluetooth earphone comprises an earphone main body and the earphone charging box (20) as claimed in any one of claims 5 to 9.

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