Display screen device and electronic equipment
By embedding the NFC antenna within the backlight frame of the POS machine, the problems of weak NFC signal and poor consistency are solved, resulting in improved signal strength and a thinner, lighter product, while reducing design and assembly complexity.
Patent Information
- Application Number
- CN202422927831.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-28
AI Technical Summary
In existing POS machines, because the NFC antenna is fixed to the middle frame along with the screen, the production tolerance distribution, assembly gaps and positions are inconsistent, resulting in weak NFC signals and poor overall machine consistency.
The NFC antenna is placed inside the backlight frame of the display screen. Specifically, the NFC antenna is integrally injection molded into the backlight frame and fixed to the display panel with adhesive to form an internal structure.
It improves NFC signal strength and product consistency, while also achieving product thinner and lighter designs and modular functionality, reducing design and assembly complexity and lowering costs.
Smart Images

Figure CN223679463U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mobile device field especially relates to a display screen device and electronic equipment. BACKGROUND
[0002] With the development of science and technology, non-contact identity recognition, data transmission mode gradually plays an important role in daily life and production, and NFC technology as a traditional near field transmission mode is widely used.
[0003] In commercial transactions, POS machines have payment, settlement and data management functions, and their design focuses more on stability and durability. POS machines usually need to be used very frequently, so the design of the detachable battery facilitates users to replace the battery at any time to ensure the continuous operation of the POS machine. The detachable battery design needs to reserve a battery compartment and a battery interface structure in the POS machine, which will occupy a certain internal space, resulting in that the POS machine cannot design NFC to the back like a mobile phone.
[0004] Please refer to Figure 1 In the prior art, the NFC antenna 1 is usually fixedly installed with the screen 2 on the middle frame shell (not shown in the figure) of the POS machine. When the NFC antenna is installed on the middle frame shell, due to the tolerance distribution of production, assembly gap and inconsistent position, there is a problem of poor consistency of the whole machine and weak NFC signal. UTILITARIAN CONTENT
[0005] The utility model aims at providing a display screen device and electronic equipment, which is beneficial to improving the consistency of products and the signal strength of NFC.
[0006] In order to achieve the above purpose, the utility model provides a display screen device, which comprises:
[0007] The display screen comprises a display panel and a backlight module, the backlight module is arranged on the back side of the display panel, and the backlight module comprises a backlight frame arranged on the side away from the display panel;
[0008] The NFC antenna is arranged in the backlight frame;
[0009] The cover plate is arranged on the side of the display panel away from the backlight module.
[0010] Optionally, the NFC antenna is fixed to the bottom wall of the backlight frame.
[0011] Optionally, when the size value of the NFC antenna is greater than the preset size value, the NFC antenna is fixed to the bottom wall of the backlight frame.
[0012] Optionally, the edge position of the NFC antenna is fixedly connected to the side edge of the backlight frame.
[0013] Optionally, when the size value of the NFC antenna is less than the preset size value, the edge position of the NFC antenna is fixedly connected to the side of the backlight frame.
[0014] Optionally, the NFC antenna is integrally injection molded in the backlight frame.
[0015] Optionally, the display panel comprises a composite film upper polarizing plate, a filter, a TFT substrate and a composite film lower polarizing plate which are sequentially stacked, and the composite film lower polarizing plate is close to the backlight module.
[0016] Optionally, the display panel is fixed to the back side of the cover plate by an adhesive.
[0017] Optionally, the backlight module further comprises a backlight multilayer film, and the backlight multilayer film is arranged between the backlight adhesive frame and the display panel.
[0018] In order to achieve the above-mentioned purpose, the utility model also provides an electronic equipment which comprises the display screen device as mentioned above.
[0019] In the embodiment of the utility model, the display screen device comprises a display screen and an NFC antenna, the display screen comprises a display panel and a backlight module, the backlight module comprises a backlight frame arranged on the side far from the display panel, and the NFC antenna is arranged in the backlight frame. The display screen device has the NFC antenna built-in the backlight frame, which is beneficial to improving the consistency of the product, improving the signal strength of the NFC, and facilitating the light and thin product and the functional modularization. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a cross-sectional view of the NFC antenna and the screen in the prior art.
[0021] Figure 2 It is a front view of the display screen with the NFC antenna larger than 4 inches in the embodiment of the utility model.
[0022] Figure 3 It is a cross-sectional view of the display screen with the NFC antenna larger than 4 inches in the embodiment of the utility model.
[0023] Figure 4 It is a front view of the display screen with the NFC antenna smaller than 4 inches in the embodiment of the utility model.
[0024] Figure 5 It is a side view of the display screen with the NFC antenna smaller than 4 inches in the embodiment of the utility model. DETAILED DESCRIPTION
[0025] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0026] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0027] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0028] Please see Figures 2 to 5 This utility model discloses a display device 1, including a display screen 10, an NFC antenna 20, and a cover plate 30. The display screen 10 includes a display panel 11 and a backlight module 12. The backlight module 12 is disposed on the back side of the display panel 11, and the backlight module 12 includes a backlight frame 121 disposed on the side away from the display panel 11. The NFC antenna 20 is disposed within the backlight frame 121. The cover plate 30 is disposed on the side of the display panel 11 away from the backlight module 12.
[0029] In this invention, the display device 1 includes a display screen 10 and an NFC antenna 20. The display screen 10 includes a display panel 11 and a backlight module 12. The backlight module 12 includes a backlight frame 121 disposed on the side away from the display panel 11, and the NFC antenna 20 is built into the backlight frame 121. By embedding the NFC antenna 20 into the backlight frame 121, the display device 1 improves product consistency and enhances NFC signal strength, and also facilitates product thinning and modularization.
[0030] Please see Figure 2 and Figure 3 In some embodiments, the NFC antenna 20 is fixed to the bottom wall of the backlight frame 121.
[0031] Specifically, when the size of the NFC antenna 20 is larger than the preset size, the NFC antenna 20 is fixed to the bottom wall of the backlight frame 121.
[0032] Referring to Figure 4 and Figure 5 In some embodiments, the edge of the NFC antenna 20 is fixedly connected to the side of the backlight frame 121.
[0033] Specifically, when the size of the NFC antenna 20 is less than a preset size, the edge of the NFC antenna 20 is fixedly connected to the side of the backlight frame 121.
[0034] More specifically, the preset size is 4 inches. Of course, the preset size of the present application is not limited to this.
[0035] Specifically, the NFC antenna 20 is integrally injection molded in the backlight frame 121. By integrally injection molding the NFC antenna 20 in the backlight frame 121, the consistency of the product and the signal strength of the NFC are effectively improved, while the complexity of product design and assembly is reduced, which is conducive to reducing product cost.
[0036] In a specific example, when the NFC antenna 20 and the backlight frame 121 are injection molded, the already formed NFC antenna 20 is supported and protected, and after checking that the impedance of the channel and the coil is normal, it is placed in the injection mold of the backlight frame 121, and is integrally injection molded with the backlight frame 121.
[0037] Specifically, the NFC antenna 20 is integrally injection molded on the bottom wall of the backlight frame 121; or the NFC antenna 20 is connected to the side of the backlight frame 121 by injection molding.
[0038] In some embodiments, the display panel 11 includes a composite film upper polarizing sheet 113, a filter 111, a TFT substrate 112, and a composite film lower polarizing sheet 114 which are sequentially stacked, wherein the composite film lower polarizing sheet 114 is close to the backlight module 12.
[0039] The composite film upper polarizing sheet 113 and the composite film lower polarizing sheet 114 are mainly composed of multiple layers of polymer materials, and their basic structure generally includes two layers of triacetate cellulose (TAC) film and one layer of stretched polyvinyl alcohol (PVA) film. Among them, the PVA film is the core film material for polarization. After dyeing, it adsorbs iodine molecules or organic dye molecules with dichroic absorption function, and through stretching, these molecules are orderly arranged on the PVA film to form a polarizing film with uniform dichroic absorption performance. The TAC film acts as a support for the PVA film to protect the PVA film from damage by external environmental factors such as water vapor and ultraviolet light. In addition, the polarizing sheet may also include protective film, increment film, pressure sensitive adhesive, phase difference film and other film materials to achieve different functional requirements.
[0040] Specifically, the TFT substrate 112 is usually composed of a glass substrate, a thin film transistor (TFT) array, a conductive circuit, and the like. The glass substrate serves as a carrier, and its surface flatness, coefficient of thermal expansion, and other characteristics have an important influence on the display effect. The thin film transistor array is the core part of driving and controlling the pixels, and each pixel is equipped with one or more TFTs to form a driving unit.
[0041] Specifically, the material of the cover plate 30 is glass.
[0042] In a specific example, the display panel 11 is an LCD display panel.
[0043] In some embodiments, the display panel 11 is fixed to the back side of the cover plate 30 by the adhesive 40.
[0044] Specifically, the material of the adhesive 40 is OCA (Optical Clear Adhesive) optical adhesive. OCA (Optical Clear Adhesive) optical adhesive is an optically transparent special double-sided adhesive tape, which is mainly prepared by one or more high molecular compounds through polymerization reaction. OCA optical adhesive is mainly applied in the field of display and touch, as an adhesive between different components. OCA optical adhesive has good heat resistance, water resistance and weather resistance, and can maintain stable performance in various harsh environments.
[0045] In some embodiments, the backlight module 12 further comprises a backlight multilayer film material 122, which is arranged between the backlight frame 121 and the display panel 11.
[0046] The backlight multilayer film material 122 is a key component for providing backlight in liquid crystal display (LCD), which usually includes a reflective film, a diffusion film and a brightness enhancement film. The reflective film is used to reflect the light emitted from the light guide plate or other light sources, the diffusion film is used to make the light relatively balanced in the whole plane, and the brightness enhancement film is used to improve the light emitting efficiency of the backlight by using the principle of light refraction and reflection.
[0047] Specifically, the display screen device 1 further comprises an FPC (Flexible Printed Circuit), which is connected to the mainboard of the electronic device.
[0048] In a specific manufacturing process, after the NFC antenna 20 is integrally injection molded in the backlight frame 121, it needs to be tested for conduction to ensure normal operation, and then connected with the NFC chip, and after matching, calibration and debugging, it is put into use.
[0049] The utility model further discloses an electronic equipment, including the display screen device 1 as mentioned previously.
[0050] Specifically, the electronic device is a POS machine.
[0051] The above disclosed is only a preferred example of the utility model, and its role is to facilitate the understanding and implementation of the skilled in the art, and of course cannot limit the scope of the utility model right, therefore, the equivalent changes made according to the utility model patent range still belong to the scope covered by the utility model.
Claims
1. A display screen device, characterized by The display screen device comprises: a display screen comprising a display panel and a backlight module, the backlight module being arranged on the back side of the display panel, the backlight module comprising a backlight frame arranged on the side away from the display panel; an NFC antenna arranged in the backlight frame; a cover plate arranged on the side of the display panel away from the backlight module.
2. The display screen device of claim 1, wherein: the NFC antenna is fixed to the bottom wall of the backlight frame.
3. The display screen apparatus of claim 1, wherein, when the size of the NFC antenna is greater than a preset size, the NFC antenna is fixed to the bottom wall of the backlight frame.
4. The display screen device of claim 1, wherein: the edge of the NFC antenna is fixedly connected to the side of the backlight frame.
5. The display screen apparatus of claim 1, wherein, when the size of the NFC antenna is less than a preset size, the edge of the NFC antenna is fixedly connected to the side of the backlight frame.
6. A display screen device as claimed in any one of claims 1 to 5, characterized in that the NFC antenna is integrally injection molded in the backlight frame.
7. The display screen apparatus of claim 1, wherein, the display panel comprises a composite film upper polarizing plate, a filter, a TFT substrate and a composite film lower polarizing plate arranged in sequence, wherein the composite film lower polarizing plate is close to the backlight module.
8. The display screen device of claim 7, wherein, the display panel is fixed to the back side of the cover plate by adhesive.
9. The display screen apparatus of claim 1, wherein, the backlight module further comprises a backlight multilayer film arranged between the backlight frame and the display panel.
10. An electronic device, comprising: The display screen device comprises any one of claims 1 to 9.