Display module integrated with NFC antenna function

Abstract

The utility model discloses a display module integrated with an NFC antenna function, which comprises a glass cover plate and a display assembly, the glass cover plate is attached to the display assembly, a transparent conductive film layer is plated on the surface, facing the display assembly, of the glass cover plate, and an NFC antenna circuit is plated on the conductive film layer. According to the utility model, the NFC antenna circuit is integrated into the cover plate structure of the display module, so that compared with the traditional mode that foam needs to be additionally pasted on the back of the display module and then the NFC antenna needs to be pasted on the back of the display module, the module structure can be greatly simplified, and the used product is thinner and lower in cost.

Description

Technical Field

[0001] This utility model relates to the technical field of display modules with integrated NFC antenna function, and in particular to a display module with integrated NFC antenna function on a cover plate. Background Technology

[0002] More and more wearable devices on the market, such as watches and wristbands, now have built-in NFC antennas for payment, electronic tickets, or data exchange and collection with smart media. The conventional design places the NFC antenna on the back of the display module. This design requires attaching a 0.13–0.2 mm thick protective foam layer between the back of the display and the NFC antenna, and then attaching the NFC antenna to the back of the protective foam. This results in a relatively complex manufacturing process, high production costs, and does not align with consumers' desire for thinner and lighter wearable products. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a display module that integrates the wiring scheme of the NFC antenna into the cover plate structure, thereby simplifying the module structure and making the product thinner and cheaper.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A display module integrating NFC antenna function includes a glass cover and a display component. The glass cover and the display component are bonded together. A transparent conductive film layer is deposited on the surface of the glass cover facing the display component, and NFC antenna lines are provided on the conductive film layer.

[0006] Furthermore, the glass cover is made of reinforced glass.

[0007] Furthermore, the conductive film layer is a transparent conductive film layer.

[0008] Furthermore, the conductive film layer is an ITO conductive film layer, which is sputtered.

[0009] Furthermore, a SiO2 barrier film is deposited between the glass cover and the ITO conductive film layer.

[0010] Furthermore, the NFC antenna circuitry is fabricated on the ITO conductive film using a photolithography etching process.

[0011] Furthermore, the NFC antenna lines are arranged in sections on the glass cover.

[0012] Furthermore, the partitions are connected by metal jumpers.

[0013] Furthermore, the display component includes a display panel and an FPC bonded to the display panel. A polarizer is attached to the upper surface of the display panel, and the surface of the glass cover plate with NFC antenna lines is attached to the polarizer.

[0014] Furthermore, the NFC antenna line is connected to the FPC.

[0015] This invention integrates the NFC antenna circuitry into the cover structure of the display module. Compared to the traditional method of adding foam to the back of the display module before attaching the NFC antenna, this significantly simplifies the module structure, allowing for thinner products and lower costs. Furthermore, this invention uses a sputtered transparent ITO conductive film layer to add the NFC antenna circuitry to the glass cover, which does not affect the display effect of the display module, and the thin ITO further reduces the module's structural thinness. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the display module integrating NFC antenna function according to this utility model. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element present. The terms "orienting," "upper," "lower," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] See Figure 1 An embodiment of a display module integrating NFC antenna function is disclosed. The display module includes a glass cover plate 1 and a display component, which are bonded together. A transparent conductive film layer 11 is deposited on the surface of the glass cover plate 1 facing the display component, and an NFC antenna line 12 is provided on the conductive film layer 11. This embodiment integrates the NFC antenna line 12 into the structure of the cover plate 1 of the display module. Compared with the traditional method of adding foam and then attaching the NFC antenna to the back of the display module, this greatly simplifies the module structure, allowing for thinner products and lower costs.

[0022] In the preferred embodiment of this first example, the glass cover 1 is made of reinforced glass to ensure that the glass cover 1 has sufficient strength and stability during subsequent processing.

[0023] In this preferred embodiment of Example 1, to avoid affecting the display effect of the display module, the conductive film layer 11 is set as a transparent conductive film layer, and the transparent conductive film layer 11 is an ITO conductive film layer, which is deposited by sputtering process. ITO is thinner. It should be noted that during the sputtering process, the thickness of ITO can be controlled by controlling the sputtering parameters, thereby controlling the resistance and conductivity to meet the product requirements.

[0024] In this preferred embodiment of Example 1, a SiO2 barrier film (not shown in the figure) is deposited between the glass cover plate 1 and the ITO conductive film layer 11. Thus, by first depositing a SiO2 barrier film and then depositing the ITO conductive film, the main function of the SiO2 barrier film is to prevent metal ions in the cover plate body from diffusing and penetrating into the ITO conductive film layer, thereby affecting the conductivity of the ITO conductive film layer.

[0025] In the preferred embodiment of this example, the NFC antenna line 12 is fabricated on the ITO conductive film 11 using a photolithography process.

[0026] In a specific implementation, after preparing an ITO conductive film 11 on the glass cover plate 1 using sputtering, a layer of photoresist is first coated on the surface of the ITO conductive film 11. The photoresist-coated ITO conductive film 11 is exposed to a mask using yellow light. The photoresist in the exposed area undergoes a chemical change and then dissolves in the developer, forming a photoresist opening corresponding to the mask pattern. The exposed ITO conductive film is then etched to remove the unwanted ITO material, leaving a conductive line pattern corresponding to the photoresist opening. Finally, the remaining photoresist is removed using an organic solvent or a photoresist remover to obtain the final ITO conductive line pattern, which is the NFC antenna line 12.

[0027] In this preferred embodiment of Example 1, the NFC antenna line 12 is partitioned on the glass cover plate 1. This partitioning optimizes the performance of the NFC antenna (e.g., in some cases, functional partitioning, signal transmission partitioning, and electromagnetic interference protection partitioning are required), improving communication reliability and stability. In cases with complex layout requirements, metal jumpers can be used to connect the partitions, improving the signal transmission path, reducing signal loss, and further enhancing the reliability and stability of NFC communication.

[0028] In a preferred embodiment of this first embodiment, the display component includes a display panel 2 and an FPC 3 bonded to the display panel 2. Polarizers 21 and 22 are attached to the upper and lower surfaces of the display panel 2. The upper surface of the glass cover plate 1, which has NFC antenna lines, is attached to the polarizer 21 on the upper surface of the display panel 2 via an OCA4.

[0029] In the preferred embodiment of this example, the NFC antenna line 12 is connected to the FPC3. The NFC antenna line 12 is connected to the main circuit of the display module through the FPC3 bound to the display panel 2, which can realize data transmission and interaction. This connection method not only simplifies the structure of the product, but also improves the stability and efficiency of data transmission.

[0030] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A display module integrating NFC antenna function, comprising a glass cover and a display component, characterized in that, The glass cover plate is attached to the display component, and the surface of the glass cover plate facing the display component is coated with a transparent conductive film layer, on which NFC antenna lines are provided.

2. The display module integrating NFC antenna function according to claim 1, characterized in that, The glass cover is made of reinforced glass.

3. The display module integrating NFC antenna function according to claim 1, characterized in that, The conductive film layer is an ITO conductive film layer.

4. The display module integrating NFC antenna function according to claim 3, characterized in that, The ITO conductive film layer is formed by sputtering.

5. The display module integrating NFC antenna function according to claim 4, characterized in that, A SiO2 barrier film is deposited between the glass cover and the ITO conductive film.

6. The display module integrating NFC antenna function according to claim 4, characterized in that, The NFC antenna lines are fabricated on the ITO conductive film using photolithography.

7. The display module integrating NFC antenna function according to claim 1, characterized in that, The NFC antenna lines are arranged in sections on the glass cover.

8. The display module integrating NFC antenna function according to claim 7, characterized in that, The partitions are connected by metal jumpers.

9. The display module integrating NFC antenna function according to claim 1, characterized in that, The display component includes a display panel and an FPC bonded to the display panel. A polarizer is attached to the upper surface of the display panel, and the surface of the glass cover plate with NFC antenna lines is attached to the polarizer.

10. The display module integrating NFC antenna function according to claim 9, characterized in that, The NFC antenna line is connected to the FPC.

Images