Display screen structure

Abstract

The utility model relates to the technical field of vehicle-mounted display screens, in particular to a display screen structure which comprises a display module, a backlight module, an NFC module, a control module and a mounting support, one side of the backlight module is connected with the display module, the other side of the backlight module is connected with the mounting support, a containing cavity is formed between the backlight module and the mounting support, and the NFC module is arranged in the containing cavity. The control module is connected with the backlight module and arranged in the containing cavity, and the NFC module is arranged between the backlight module and the control module. According to the utility model, the NFC module is embedded into the display screen structure, so that the black edge of the appearance of a product can be reduced, the production and the assembly are facilitated, and the convenience of man-machine interaction and the intelligent level of a cabin are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted display screens, and more particularly to a display screen structure. Background Art

[0002] As automotive cockpit electronics become increasingly intelligent, some features of mobile phone screens are gradually being ported to in-car displays, such as near-field communication (NFC). By adding an NFC module to the in-car display, users can quickly transfer Bluetooth, Wi-Fi, navigation, and other information simply by holding their phone close to the in-car screen. This enriches the functionality of the in-car screen, enhances the convenience of human-computer interaction, and improves the intelligence of the in-car cabin.

[0003] Prior art, such as Chinese patent CN216352244U, discloses a display structure with an antenna integrated into a touchscreen. The structure comprises a touchscreen, a TFT module, and a backlight module, arranged sequentially from top to bottom. The touchscreen includes a contact sensor (TP sensor), a glass cover (TP lens) disposed outside the TP sensor, and an antenna disposed on the TP sensor. The antenna is connected to the front PCB of the in-vehicle entertainment system via a flexible circuit board. The antenna is etched into the touchscreen, positioned in front of the screen, to enable NFC functionality between a user's mobile phone and the in-vehicle display. However, etching the NFC antenna can easily create a black border on the outside of the screen, and the production process is complex, making assembly inconvenient. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art in that black edges are easily generated when installing an NFC antenna and the production and assembly are complicated, and to provide a display screen structure that reduces the black edges of the product appearance and facilitates production and assembly while realizing the NFC function.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A display screen structure is provided, comprising a display module, a backlight module, an NFC module, a control module, and a mounting bracket. The backlight module is connected to the display module on one side and to the mounting bracket on the other side. A receiving cavity is provided between the backlight module and the mounting bracket. The control module is connected to the backlight module and disposed in the receiving cavity. The control module is electrically connected to the display module. The NFC module is disposed between the backlight module and the control module.

[0007] The display screen structure of the present invention first installs the NFC module between the backlight module and the control module, and then connects the display module, backlight module, control module and mounting bracket in sequence, and the control module is installed in the accommodation cavity between the backlight module and the mounting bracket. When the user brings a mobile phone with NFC function close to the display screen, the NFC module senses the signal sent by the mobile phone and communicates with the control module at the same time. The control module processes the relevant data and finally controls the display content on the display module to change, realizing human-computer interaction. The backlight module ensures that the display module can clearly display the image content under the lighting conditions of the vehicle, and the mounting bracket provides a stable installation position for the overall structure of the display screen. The display screen structure of the present invention realizes NFC interaction between the user's mobile phone and the vehicle-mounted display screen through the embedded NFC module, reduces the external black edges around the display screen, ensures the aesthetics of the product, and has a simple structure, which is convenient for production and assembly.

[0008] Furthermore, the NFC module includes an NFC antenna, an NFC chip, and an FPC flexible cable. The NFC antenna is mounted on the backlight module, and the NFC chip is mounted on the control module. The NFC antenna and the NFC chip are connected via the FPC flexible cable. The NFC chip is responsible for communicating with the control module, and the NFC antenna is used to sense the user's mobile phone and complete data exchange between the user's mobile phone and the NFC module. The FPC flexible cable is a flexible cable set that is suitable for connecting the NFC antenna mounted on the backlight module and the NFC chip mounted on the control module.

[0009] Furthermore, the backlight module is provided with a mounting slot, and the NFC module also includes a mounting base, which is fixed in the mounting slot, and the NFC antenna is disposed in the mounting base. The NFC antenna is fixedly mounted in the mounting slot of the backlight module via the mounting base, providing a stable and centralized mounting position for the NFC antenna, preventing the antenna position from shifting during use and affecting the sensing effect. At the same time, concentrating the NFC antenna in the mounting base simplifies the production and assembly process.

[0010] Furthermore, a first double-sided adhesive tape is provided between the backlight module and the mounting base for fixing the mounting base. The first double-sided adhesive tape connects the mounting slot and the mounting base, respectively, so that the mounting base can be stably installed in the mounting slot and is not easily loosened. The first double-sided adhesive tape occupies a small space and is suitable for use in vehicle-mounted displays with limited installation space.

[0011] Furthermore, the NFC antenna is provided with a second double-sided tape, which connects the NFC antenna to the mounting base. This second double-sided tape prevents the NFC antenna from falling out of the mounting base during use, ensuring stable NFC functionality even in a bumpy vehicle environment.

[0012] Furthermore, the display module includes a cover plate and a FOG plate. The cover plate is connected to the backlight module, and the FOG plate is disposed between the cover plate and the backlight module. The FOG plate directly bonds a flexible printed circuit (FPC) to the screen liquid crystal, providing high-quality image display effects on the in-vehicle display screen. The cover plate covers the FOG plate to protect the FOG plate structure during use.

[0013] Furthermore, OCA adhesive is applied between the cover plate and the FOG plate, with an area equal to that of the FOG plate. OCA optical adhesive is a key adhesive in touch screens. It is colorless and transparent, with a light transmittance exceeding 95% and excellent bonding strength. By bonding the cover plate and FOG plate together, the OCA adhesive completely covers the FOG plate, enabling touchscreen functionality on the in-vehicle display.

[0014] Furthermore, a structural adhesive is provided between the cover plate and the backlight module, and the structural adhesive is arranged around the edges of the FOG board. The structural adhesive surrounds the FOG board and is used to connect the cover plate and the backlight module, prevent the cover plate from loosening, stabilize the overall structure of the display module, and do not affect the display effect of the FOG board.

[0015] Furthermore, the control module includes a FOG PCB and a Main PCB. The Main PCB is connected to the mounting bracket, and the FOG PCB is connected to the backlight module and electrically connected to the FOG. The FOG PCB primarily processes touchscreen signals from the FOG board, while the Main PCB receives signals from the NFC module, processes the signals, and then communicates with the vehicle host.

[0016] Furthermore, the NFC chip is installed on the Main PCBA board and has an I2C communication interface. Adding an NFC chip to the hardware Main PCBA board and using I2C communication to communicate with the deserializer and host ensures the stability of the data transmission process and a faster response speed.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Through the embedded NFC module, the black edge of the product appearance is reduced and the aesthetics of the car display is improved;

[0019] 2. No need for complicated production process, the screen structure is simple and easy to assemble;

[0020] 3. Add an NFC chip to the PCBA board and use I2C communication to improve data transmission efficiency, enrich the functional scenarios of the in-vehicle screen, and enhance the convenience of human-computer interaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the structural explosion diagram of the display structure;

[0022] Figure 2 Schematic diagram of the structure of the display screen;

[0023] Figure 3 for Figure 2 Cross-sectional view at the AA position;

[0024] Figure 4 This is a schematic diagram of the display screen structure from another perspective;

[0025] Figure 5 Schematic diagram of the structure of the mounting base;

[0026] In the accompanying drawings: 100, display module; 101, cover plate; 102, FOG board; 103, OCA glue; 104, structural adhesive; 200, backlight module; 201, mounting slot; 300, NFC module; 301, NFC antenna; 302, NFC chip; 303, FPC flexible cable; 304, mounting seat; 305, clamping part; 306, adhesive part; 400, control module; 401, FOG PCB board; 402, Main PCBA board; 500, mounting bracket; 501, accommodating cavity. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Example 1

[0030] This embodiment is the first embodiment of a display screen structure, including a display module 100, a backlight module 200, an NFC module 300, a control module 400, and a mounting bracket 500. One side of the backlight module 200 is connected to the display module 100, and the other side is connected to the mounting bracket 500. A receiving cavity 501 is provided between the backlight module 200 and the mounting bracket 500. The control module 400 is connected to the backlight module 200 and is disposed in the receiving cavity 501. The NFC module 300 is disposed between the backlight module 200 and the control module 400.

[0031] like Figure 1 、 Figure 2 As shown, during the assembly process of the display screen structure in this embodiment, the NFC module 300 is first installed on the backlight module 200, and then one side of the backlight module 200 is connected to the display module 100 and the other side is connected to the control module 400. Finally, the connected display module 100, backlight module 200, NFC module 300, and control module 400 are installed on the mounting bracket 500. The control module 400 is located in the accommodating cavity 501 between the mounting bracket 500 and the backlight module 200. Finally, the mounting bracket 500 is tightened with screws to ensure that the internal structures of the display screen are firmly connected. The display screen structure in this embodiment occupies a small space and is suitable for use as a vehicle-mounted display screen. It communicates with the vehicle-mounted host and realizes the NFC function between the user's mobile phone and the vehicle-mounted display screen through the signal connection between the control module and the mainboard set on the vehicle-mounted host. When a user brings a mobile phone with NFC function turned on close to the car display screen, the NFC module 300 senses the connection signal sent by the mobile phone, receives the signal and transmits it to the control module 400. The control module 400 processes the relevant data and controls the display module 100 electrically connected to it to change. The backlight module 200 provides sufficient brightness and uniform light distribution, so that the image on the display module 100 can be displayed normally under various lighting conditions. Figure 3 、 Figure 4 As shown, the display screen structure in this embodiment embeds the NFC module 300 between the backlight module 200 and the control module 400, avoiding the generation of black edges on the exterior surface of the display screen, which affects the overall aesthetics. At the same time, the internal structure of the display screen is simple, assembly is convenient, production efficiency is high, and it is suitable for large-scale production.

[0032] The NFC module 300 includes an NFC antenna 301, an NFC chip 302, and an FPC flexible cable 303. The NFC antenna 301 is mounted on the backlight module 200, and the NFC chip 302 is mounted on the control module 400. The NFC antenna 301 and NFC chip 302 are connected via the FPC flexible cable 303. The NFC antenna 301 can be mounted on the backlight module 200 near the display module 100, close to the user's mobile phone. It is primarily used to sense NFC signals from the phone and transmit information such as Bluetooth, Wi-Fi, and navigation. The NFC chip 302, mounted on the control module 400, is responsible for processing the various signal data received by the NFC antenna 301 and communicating with the vehicle's host computer, ultimately controlling changes in the display content on the display module 100. The FPC cable 303 is a flexible printed circuit board made of polyimide or polyester film. It has the characteristics of high wiring density, light weight, thin thickness, and good bendability. It is suitable for connecting the NFC chip 302 and NFC antenna 301 installed in different positions on the vehicle display screen, thereby realizing complete and fast human-computer interaction and improving the intelligence level of the vehicle cabin.

[0033] The backlight module 200 in this embodiment is provided with a mounting slot 201, and the NFC module 300 further includes a mounting base 304, which is fixed in the mounting slot 201, and the NFC antenna 301 is arranged in the mounting base 304. In order to reduce the distance between the backlight module 200 and the user's mobile phone and improve the NFC response speed, the NFC antenna 301 in this embodiment is arranged on the side where the backlight module 200 is connected to the display module 100. Due to the internal space limitation of the display screen and to avoid affecting the display effect, the mounting base 304 is arranged on the side of the backlight module 200 close to the mounting bracket 500. Figure 5 As shown, mounting base 304 is provided with a snap-fit portion 305 that engages with mounting slot 201. During assembly, mounting base 304 is first snap-fitted to mounting slot 201. The NFC antenna 301 and FPC cable 303 are then threaded through the backlight module 200 and secured within mounting base 304, ultimately connecting to the NFC chip 302. Mounting base 304 centralizes the NFC antenna 301, ensuring that it is less likely to shift during use, improving sensing effectiveness and simplifying the assembly process.

[0034] A first double-sided adhesive tape is provided between the backlight module 200 and the mounting base 304 for fixing the mounting base 304. Figure 5 As shown, a gluing portion 306 is further provided on the mounting seat 304, and a first double-sided tape is provided on the gluing portion 306. The first double-sided tape is used to fix the relative position of the backlight module 200 and the mounting groove 201. The installation effect is stable and space is saved. It is suitable for use in vehicle-mounted display screens with limited installation positions. It can also reduce the use of screws and speed up assembly.

[0035] A second double-sided tape is attached to the NFC antenna 301, connecting it to the mounting base 304. This second double-sided tape prevents the NFC antenna 301 from falling out of the mounting base 304 during use, ensuring stable NFC functionality even in a bumpy vehicle environment.

[0036] The operating principle of the display screen structure with an embedded NFC module 300 in this embodiment is as follows: the display module 100, the backlight module 200, the control module 400 and the mounting bracket 500 are connected in sequence, the NFC module 300 is embedded between the backlight module 200 and the control module 400, a mounting groove 201 and an NFC antenna 301 are set on the backlight module 200, and an NFC chip 302 is set on the control module 400. Then, the mounting base 304 for fixing the position of the NFC antenna 301 is installed in the mounting groove 201, and then the NFC antenna 301 and the NFC chip 302 are connected via an FPC flexible cable 303. The mounting groove 201 and the backlight module 200, and the NFC antenna 301 and the mounting base 304 are fixed respectively using a first double-sided tape and a second double-sided tape.

[0037] Example 2

[0038] This embodiment is the second embodiment of a display screen structure with an embedded NFC module 300. This embodiment is similar to the first embodiment, except that the display module 100 includes a cover plate 101 and a FOG plate 102. The cover plate 101 is connected to the backlight module 200, and the FOG plate 102 is disposed between the cover plate 101 and the backlight module 200. The FOG plate 102 is a flexible circuit board mounted on a glass panel, which is then covered by the cover plate 101 for protection. The backlight module 200 provides a bright and uniform light source for the display module 100, ensuring the overall image display effect.

[0039] like Figure 1 As shown, OCA adhesive 103 is applied between the cover plate 101 and the FOG plate 102. The area of OCA adhesive 103 is equal to that of the FOG plate 102. OCA optical adhesive is colorless and transparent, with high light transmittance and excellent bonding strength. It is used to bond the cover plate 101 and the FOG plate 102. The area of OCA adhesive 103 must be equal to that of the FOG plate 102, that is, it must completely cover the FOG plate 102. This ensures that all positions on the display screen can be touched without any blind spots.

[0040] Structural adhesive 104 is provided between the cover plate 101 and the backlight module 200. Structural adhesive 104 is provided around the edges of the FOG plate 102. Structural adhesive 104 is a hollow quadrilateral structure that does not contact the FOG plate 102. It is connected between the cover plate 101 and the backlight module 200 to prevent the cover plate 101 from loosening, stabilize the overall structure of the display module 100, and maintain the display quality of the display module 100.

[0041] The working principle of the display screen structure with an embedded NFC module 300 in this embodiment is as follows: the display module 100 includes a cover plate 101 and a FOG plate 102. The cover plate 101 and the FOG plate 102 are connected using OCA glue 103, and the cover plate 101 and the backlight module 200 are connected using a hollow quadrilateral-shaped structural glue 104.

[0042] Example 3

[0043] This embodiment is the second embodiment of a display screen structure with an embedded NFC module 300. This embodiment is similar to the first embodiment, differing in that the control module 400 includes a FOG PCB 401 and a Main PCB 402. The Main PCB 402 is connected to the mounting bracket 500, while the FOG PCB 401 is connected to the backlight module 200 and electrically connected to the FOG board 102. The FOG PCB controls the FOG board 102, while the Main PCB 402 receives signals from the NFC module 300 and transmits data to the vehicle system host.

[0044] The NFC chip 302 is mounted on the Main PCBA board 402 and has an I2C communication interface. Adding the NFC chip 302 to the Main PCBA board 402 and using I2C to communicate with the deserializer and host ensures stable data transmission and faster response times, enriching the functional scenarios of the in-vehicle screen and enhancing the convenience of human-computer interaction.

[0045] The working principle of the display screen structure with an embedded NFC module 300 in this embodiment is as follows: the FOG board 102 is controlled by the FOG PCB board 401, the Main PCBA board 402 is connected to the vehicle system host and the FOG PCB board 401, and an NFC chip 302 is added to the Main PCBA board 402, and the I2C communication method is used to communicate with the deserializer and the host.

[0046] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A display screen structure, characterized in that: The invention comprises a display module (100), a backlight module (200), an NFC module (300), a control module (400) and a mounting bracket (500); one side of the backlight module (200) is connected to the display module (100), and the other side is connected to the mounting bracket (500); an accommodating cavity (501) is provided between the backlight module (200) and the mounting bracket (500); the control module (400) is connected to the backlight module (200) and is arranged in the accommodating cavity (501); the control module (400) is electrically connected to the display module (100); and the NFC module (300) is arranged between the backlight module (200) and the control module (400).

2. The display screen structure according to claim 1, wherein: The NFC module (300) comprises an NFC antenna (301), an NFC chip (302) and an FPC flexible flat cable (303); the NFC antenna (301) is arranged on the backlight module (200); the NFC chip (302) is arranged on the control module (400); and the NFC antenna (301) and the NFC chip (302) are connected via the FPC flexible flat cable (303).

3. The display screen structure according to claim 2, characterized in that: The backlight module (200) is provided with a mounting groove (201), and the NFC module (300) further comprises a mounting seat (304), the mounting seat (304) is fixed in the mounting groove (201), and the NFC antenna (301) is arranged in the mounting seat (304).

4. The display screen structure according to claim 3, wherein: A first double-sided adhesive tape for fixing the mounting seat (304) is provided between the backlight module (200) and the mounting seat (304).

5. The display screen structure according to claim 3, characterized in that: A second double-sided adhesive tape is provided on the NFC antenna (301), and the NFC antenna (301) and the mounting seat (304) are connected via the second double-sided adhesive tape.

6. The display screen structure according to any one of claims 1 to 5, characterized in that: The display module (100) comprises a cover plate (101) and a FOG plate (102); the cover plate (101) is connected to the backlight module (200); and the FOG plate (102) is arranged between the cover plate (101) and the backlight module (200).

7. The display screen structure according to claim 6, characterized in that: An OCA glue (103) is provided between the cover plate (101) and the FOG plate (102), and the area of the OCA glue (103) is equal to the area of the FOG plate (102).

8. The display screen structure according to claim 6, characterized in that: Structural adhesive (104) is provided between the cover plate (101) and the backlight module (200), and the structural adhesive (104) is arranged around the edges of the FOG plate (102).

9. The display screen structure according to claim 6, wherein: The control module (400) comprises a FOG PCB board (401) and a Main PCBA board (402), wherein the Main PCBA board (402) is connected to the mounting bracket (500), and the FOG PCB board (401) is connected to the backlight module (200) and electrically connected to the FOG board (102).

10. The display screen structure according to claim 9, characterized in that: The NFC chip (302) is arranged on the Main PCBA board (402), and the NFC chip (302) is provided with an I2C communication interface.

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