Structure for reducing impedance of display screen

Abstract

The utility model relates to the technical field of display equipment, in particular to a structure for reducing impedance of a display screen, which comprises a display screen frame, a liquid crystal display screen is fixedly mounted on the display screen frame, an NFC (near field communication) antenna is arranged in the display screen frame, a backlight frame is arranged in the display screen frame, and a reflector plate is fixedly connected to the inner wall of the backlight frame. The reflector plate is made of an RMF material, the reflection brightness of the reflector plate is basically consistent with that of traditional silver reflection, the highlight requirement of a display screen can be met, the impedance of the RMF material is obviously reduced compared with that of silver, the impedance of the display screen can be reduced to a certain degree, the signal transmission efficiency is improved, the energy consumption of equipment is reduced, the RMF material does not contain metal, and the cost is low. The signal transmission is not influenced, the communication distance of the NFC antenna can be improved, and the signal stability is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, specifically to a structure for reducing the impedance of a display screen. Background Technology

[0002] With the continuous development of display technology, displays are being used more and more widely in various electronic devices. When traditional displays are in operation, if the impedance is high, the signal will face greater obstacles during transmission, resulting in a significant reduction in signal transmission efficiency. The device needs to consume more energy to maintain communication, leading to a significant increase in energy consumption.

[0003] In recent years, NFC antennas have been increasingly used in products. NFC technology, as a short-range, high-frequency wireless communication technology, is widely used in mobile payments, data transmission, device pairing, and many other fields due to its convenience. To ensure communication stability and reliability, optimizing the impedance matching between the NFC antenna and the display screen is crucial. When the display screen impedance is high, it leads to severe signal reflection, resulting in a shorter NFC communication distance and poorer signal stability.

[0004] In order to reduce the impedance of the display screen to a certain extent, improve signal transmission efficiency, reduce device power consumption, increase NFC antenna communication distance, and enhance signal stability, we propose a structure to reduce the impedance of the display screen. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a structure for reducing display screen impedance, which can reduce the impedance of the display screen to a certain extent, improve signal transmission efficiency, reduce device power consumption, increase the communication distance of the NFC antenna, and enhance signal stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A structure for reducing display impedance includes a display frame, on which a liquid crystal display is fixedly mounted, an NFC antenna is disposed within the display frame, a backlight frame is disposed within the display frame, and a reflective sheet is fixedly connected to the inner wall of the backlight frame, the reflective sheet being made of RMF material.

[0008] Preferably, a light guide plate is fixedly connected to the side of the reflector near the display frame, and the light guide plate is made of optical-grade polymethyl methacrylate (PMMA).

[0009] Preferably, a diffuser sheet is fixedly connected to the side of the light guide plate near the display frame, and the diffuser sheet is composed of several groups of polyethylene terephthalate (PET) films.

[0010] Preferably, a brightness enhancement film is fixedly connected to the side of the diffuser sheet near the display frame, and a prism structure made of acrylic resin is formed on the brightness enhancement film by micro-replication technology.

[0011] Preferably, light strips are fixedly connected to the top and bottom of the backlight frame, and several sets of LED beads are fixedly connected to the side of the light strips near the backlight frame. The backlight frame has light-transmitting grooves that match the LED beads.

[0012] Preferably, the backlight frame is made of aluminum alloy.

[0013] Beneficial effects

[0014] This invention provides a structure for reducing display screen impedance. Compared with the prior art, it has the following advantages:

[0015] This structure reduces the impedance of the display screen. The reflective sheet is made of RMF material, and its reflective brightness is basically the same as that of traditional silver reflective material, which can meet the high brightness requirements of the display screen. The impedance of RMF material is significantly lower than that of silver, which can reduce the impedance of the display screen to a certain extent, improve signal transmission efficiency, reduce device power consumption, and since RMF material does not contain metal, it will not affect signal transmission, which can improve the communication distance of NFC antenna and enhance signal stability. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the main body of this utility model;

[0017] Figure 2 This is an exploded schematic diagram of the main body of this utility model;

[0018] Figure 3 This is an exploded view of the internal structure of the backlight frame of this utility model.

[0019] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Display frame; 2. LCD screen; 3. NFC antenna; 4. Backlight frame; 5. Light strip; 6. LED beads; 7. Light-transmitting groove; 8. Reflective sheet; 9. Light guide plate; 10. Diffuser sheet; 11. Brightness enhancement film. Detailed Implementation

[0021] 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 protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a structure for reducing display screen impedance, including a display screen frame 1, a liquid crystal display screen 2 fixedly mounted on the display screen frame 1, an NFC antenna 3 disposed in the display screen frame 1, a backlight frame 4 disposed in the display screen frame 1, and a reflective sheet 8 fixedly connected to the inner wall of the backlight frame 4, the reflective sheet 8 being made of RMF material.

[0023] To meet high brightness requirements, silver reflectivity is often used in display backlights. Conventional silver reflective structures have a metal coating on the surface to improve reflectivity. However, while this metal enhances reflection, it also significantly affects the display's impedance. Simultaneously, the presence of metal alters the electrical characteristics of the current transmission path, increasing resistance and exacerbating energy loss during signal transmission, further worsening the display's impedance performance. RMF material is a composite material formed by bonding a polyester-based film to a substrate through special processing. Reflective sheets 8 made of RMF material have a reflectivity essentially the same as traditional silver reflectivity, but the impedance of RMF material is significantly lower than that of silver. Furthermore, RMF material does not contain metal and therefore does not affect signal transmission. Thus, while meeting the high brightness requirements of the display, it can reduce the display's impedance to a certain extent, improve signal transmission efficiency, reduce device power consumption, increase the communication distance of the NFC antenna 3, and enhance signal stability.

[0024] A light guide plate 9 is fixedly connected to the side of the reflector 8 near the display frame 1. The light guide plate 9 is made of optical grade polymethyl methacrylate (PMMA).

[0025] PMMA features high light transmittance and low haze, effectively guiding light from the sides to the front to achieve a surface light source effect. It also boasts excellent processing properties, allowing it to be manufactured into light guide plates of various shapes and sizes through injection molding, compression molding, and other processes to meet the needs of different displays.

[0026] A diffuser sheet 10 is fixedly connected to the side of the light guide plate 9 near the display frame 1. The diffuser sheet 10 is composed of several groups of polyethylene terephthalate (PET) films.

[0027] PET has high light transmittance, good flexibility and mechanical strength, which can effectively diffuse light while ensuring light transmission.

[0028] A brightness enhancement film 11 is fixedly connected to the side of the diffuser 10 near the display frame 1. A prism structure made of acrylic resin is formed on the brightness enhancement film 11 by micro-replication technology.

[0029] The prism structure of acrylic resin can concentrate scattered light within a certain angle range, improving the brightness and contrast of the front of the display screen.

[0030] The top and bottom of the backlight frame 4 are fixedly connected with light strips 5. Several sets of LED beads 6 are fixedly connected to the side of the light strips 5 near the backlight frame 4. The backlight frame 4 has light-transmitting grooves 7 that match the LED beads 6.

[0031] Using LED beads as the light source, it has the advantages of high luminous efficiency, fast response speed and long life, which can meet the high performance requirements of the backlight panel for the light source.

[0032] The backlight frame 4 is made of aluminum alloy. It is lightweight and sturdy while ensuring good heat dissipation.

[0033] Working Principle: In the display frame 1, LED beads 6 on the light strips 5 fixedly connected to the top and bottom of the backlight frame 4 serve as the light source. LED beads 6 have advantages such as high luminous efficiency, fast response speed, and long lifespan. A light-transmitting groove 7 matching the LED beads 6 is provided on the backlight frame 4, through which light is emitted. The reflective sheet 8 fixedly connected to the inner wall of the backlight frame 4 is made of RMF material. Its reflective brightness is basically the same as that of traditional silver reflection, and the impedance of RMF material is significantly lower than that of silver. It does not contain metal and will not affect signal transmission. It can reduce the display impedance while meeting the high brightness requirements of the display, improve signal transmission efficiency, reduce device power consumption, and also improve the communication distance and signal stability of the NFC antenna 3. The light guide plate 9 connected to the side of the reflective sheet 8 near the display frame 1 is made of optical-grade polymethyl methacrylate (PMMA). Its high light transmittance and low haze characteristics can guide side light to the front, achieving a surface light source effect. Its good processing performance allows it to be made into various shapes and sizes to meet the needs of different displays. The diffuser sheet 10, connected to the side of the light guide plate 9 near the display frame 1, is composed of several groups of polyethylene terephthalate (PET) films. The high light transmittance, good flexibility, and mechanical strength of PET ensure effective light diffusion while allowing light to pass through. The brightness enhancement film 11, connected to the side of the diffuser sheet 10 near the display frame 1, uses an acrylic resin prism structure formed through micro-replication technology to concentrate scattered light within a certain angle range, improving the brightness and contrast of the display screen. The entire backlight frame 4 is made of aluminum alloy, ensuring lightweight and sturdy construction while providing excellent heat dissipation.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structure for reducing display screen impedance, comprising a display screen frame (1), characterized in that: An LCD screen (2) is fixedly installed on the display frame (1). An NFC antenna (3) is provided in the display frame (1). A backlight frame (4) is provided in the display frame (1). A reflective sheet (8) is fixedly connected to the inner wall of the backlight frame (4). The reflective sheet (8) is made of RMF material.

2. The structure for reducing display screen impedance according to claim 1, characterized in that: The reflector (8) is fixedly connected to a light guide plate (9) on the side near the display frame (1), and the light guide plate (9) is made of optical grade polymethyl methacrylate (PMMA).

3. The structure for reducing display screen impedance according to claim 2, characterized in that: The light guide plate (9) is fixedly connected to a diffuser sheet (10) on the side near the display frame (1). The diffuser sheet (10) is composed of several groups of polyethylene terephthalate (PET) films.

4. The structure for reducing display screen impedance according to claim 3, characterized in that: The diffuser (10) is fixedly connected to a brightness enhancement film (11) on the side near the display frame (1). A prism structure made of acrylic resin is formed on the brightness enhancement film (11) by micro-replication technology.

5. A structure for reducing display screen impedance according to claim 1, characterized in that: The top and bottom of the backlight frame (4) are fixedly connected with light strips (5), and a number of LED beads (6) are fixedly connected to the side of the light strips (5) near the backlight frame (4). The backlight frame (4) has a light-transmitting groove (7) that matches the LED beads (6).

6. The structure for reducing display screen impedance according to claim 1, characterized in that: The backlight frame (4) is made of aluminum alloy.

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