Display screen structure and smart watch

Abstract

The utility model discloses a display screen structure and an intelligent watch. The display screen structure comprises a chip assembly; the insulating glue wrapping layer wraps the outer side of the chip assembly; the insulating tape covering layer covers one side of the insulating tape wrapping layer; the conductive cloth shielding layer covers the insulating tape covering layer, and the conductive cloth shielding layer is located on the side, away from the insulating glue wrapping layer, of the insulating tape covering layer. According to the embodiment of the invention, the insulating glue wrapping layer, the insulating tape covering layer and the conductive cloth shielding layer are arranged on the chip assembly to form an anti-interference protection system, thereby effectively reducing the influence of the internal electromagnetic interference of the smart watch on the chip assembly, improving the display quality and stability of a display screen, and guaranteeing the normal operation of the smart watch.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment technology, and further to a display screen structure and a smartwatch. Background Technology

[0002] With the rapid development of smartwatches, the integration of their internal electronic components is becoming increasingly sophisticated, especially key components such as the display driver chip (screen IC) and touch chip (TP), which need to work together within a limited space. However, smartwatches contain various sources of electromagnetic interference, such as NFC modules, wireless charging circuits, and Bluetooth / Wi-Fi radio frequency signals. This interference can affect the normal operation of the screen IC, leading to problems such as display abnormalities, flickering, and touch malfunctions.

[0003] Therefore, it is necessary to design a display structure and a smartwatch to solve the above problems. Utility Model Content

[0004] To address the aforementioned technical problems, the purpose of this utility model is to provide a display screen structure and a smartwatch. By setting an insulating adhesive wrapping layer, an insulating tape covering layer, and a conductive cloth shielding layer on the chip component, an anti-interference protection system is formed, which effectively reduces the impact of electromagnetic interference inside the smartwatch on the chip component, improves the display quality and stability of the display screen, and ensures the normal operation of the smartwatch.

[0005] To achieve the above objectives, this utility model provides a display screen structure, comprising:

[0006] Chip components;

[0007] An insulating adhesive wrapping layer is applied to the outside of the chip assembly;

[0008] An insulating tape covering layer covers one side of the insulating adhesive wrapping layer;

[0009] A conductive cloth shielding layer covers the insulating adhesive tape covering layer, and the conductive cloth shielding layer is located on the side of the insulating adhesive tape covering layer away from the insulating adhesive wrapping layer.

[0010] In some embodiments, the insulating adhesive coating layer is used to completely encapsulate the chip assembly using a needle-spray adhesive method;

[0011] The thickness of the insulating adhesive coating layer is 0.05mm-0.2mm.

[0012] In some embodiments, the thickness of the insulating tape covering layer is 0.025mm-0.075mm;

[0013] The length of the insulating tape covering layer is at least 0.2 mm greater than the length of the chip assembly;

[0014] The width of the insulating tape covering layer is at least 0.2 mm larger than the width of the chip assembly.

[0015] In some embodiments, the conductive cloth shielding layer is a single-sided adhesive-coated conductive cloth;

[0016] The thickness of the conductive cloth shielding layer is 0.05mm-0.1mm;

[0017] The length of the conductive cloth shielding layer is at least 1 mm longer than the length of the insulating tape covering layer;

[0018] The width of the conductive cloth shielding layer is at least 1 mm larger than the width of the insulating tape covering layer;

[0019] The impedance of the conductive cloth shielding layer is ≤0.5Ω.

[0020] In some embodiments, the chip assembly includes a display driver chip and a touch chip, the display driver chip and the touch chip being spaced apart, and the display driver chip and the touch chip being respectively provided with the insulating adhesive wrapping layer, the insulating adhesive tape covering layer and the conductive cloth shielding layer from the inside to the outside.

[0021] In some implementations, it also includes:

[0022] The FPC component, wherein the chip component is disposed on the FPC component via the COF component.

[0023] In some embodiments, the FPC component includes a display FPC and a touch FPC, wherein the display FPC and the touch FPC are integrally configured;

[0024] The chip assembly includes a display driver chip and a touch chip. The COF assembly includes a first COF and a second COF. The display driver chip is disposed on the display FPC through the first COF, and the touch chip is disposed on the touch FPC through the second COF.

[0025] In some embodiments, the display driver chip is disposed on the first COF, the insulating adhesive wrapping layer is wrapped around the outside of the display driver chip, the insulating tape covering layer fixes the display driver chip to the display FPC, and the insulating tape covering layer is pasted to the adhesive side of the conductive cloth shielding layer;

[0026] The touch chip is disposed on the second COF, the insulating adhesive wrapping layer is wrapped around the outside of the touch chip, the insulating tape covering layer fixes the touch chip to the touch FPC, and the insulating tape covering layer is pasted to the adhesive side of the conductive cloth shielding layer.

[0027] In some implementations, it also includes:

[0028] A near-field communication module, which is connected to the FPC component;

[0029] An organic light-emitting diode (OLED) display screen is disposed on the side of the near-field communication module away from the FPC component;

[0030] A polarizer is disposed on the side of the organic light-emitting diode display screen away from the near-field communication module;

[0031] An optically transparent adhesive layer is disposed on the side of the polarizer away from the organic light-emitting diode display screen;

[0032] A cover glass is disposed on the side of the optically transparent adhesive layer away from the polarizer, and the polarizer is bonded to the cover glass through the optically transparent adhesive layer.

[0033] According to another aspect of the present invention, the present invention further provides a smartwatch, including the display screen structure described in any one of the above.

[0034] Compared with the prior art, the display screen structure and smartwatch provided by this utility model have at least one of the following beneficial effects:

[0035] In this invention, by setting an insulating adhesive wrapping layer, an insulating tape covering layer, and a conductive cloth shielding layer on the chip assembly, an anti-interference protection system is formed, which effectively reduces the impact of electromagnetic interference inside the smartwatch on the chip assembly, improves the display quality and stability of the display screen, and ensures the normal operation of the smartwatch. By integrating the display FPC and the touch FPC into a single design, the welding process of pressure welding or hand welding is reduced, and the integrated design makes the product highly reliable and can enhance the product's competitiveness. Attached Figure Description

[0036] The optional embodiments will be described below in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0037] Figure 1 This is an exploded structural diagram of an optional embodiment of the display screen structure of this utility model;

[0038] Figure 2 This is a front view of the display screen structure of an optional embodiment of this utility model.

[0039] Explanation of icon numbers:

[0040] Chip assembly 1, display driver chip 11, touch chip 12, conductive cloth shielding layer 2, FPC assembly 3, display FPC 31, touch FPC 32, COF assembly 4, first COF 41, near field communication module 5, organic light-emitting diode display 6, polarizer 7, optically transparent adhesive layer 8, cover glass 9. Detailed Implementation

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0042] To keep the drawings concise, each figure only schematically shows the parts relevant to the utility model, and these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0043] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0044] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] In one embodiment, refer to the appendix to the specification. Figure 1 , Figure 2The present invention provides a display screen structure comprising: a chip assembly 1, an insulating adhesive wrapping layer, an insulating tape covering layer, and a conductive cloth shielding layer 2; the insulating adhesive wrapping layer is wrapped around the outside of the chip assembly 1; the insulating tape covering layer covers one side of the insulating adhesive wrapping layer; the conductive cloth shielding layer 2 covers the insulating tape covering layer, and the conductive cloth shielding layer 2 is located on the side of the insulating tape covering layer away from the insulating adhesive wrapping layer.

[0047] In this embodiment, by setting an insulating adhesive wrapping layer, an insulating tape covering layer, and a conductive cloth shielding layer 2 on the chip component 1, an anti-interference protection system is formed, which effectively reduces the impact of electromagnetic interference inside the smartwatch on the chip component, improves the display quality and stability of the display screen, and ensures the normal operation of the smartwatch.

[0048] In one embodiment, refer to the appendix to the specification. Figure 1 , Figure 2 The insulating adhesive layer is completely wrapped around chip component 1 using a needle-spraying method. The thickness of the insulating adhesive layer is 0.05mm-0.2mm. For example, using insulating blue adhesive, the entire chip component 1 is covered, and the adhesive is sprayed using a 0.2mm needle to ensure that the adhesive layer evenly covers the surface of chip component 1 without air bubbles. The adhesive path on the surface of chip component 1 needs to be flat to avoid uneven thickness, which may cause problems in subsequent layer bonding. The insulating adhesive layer completely wraps around chip component 1, fills the gaps between chip component 1 and surrounding components, forms a basic insulating layer, isolates the metal pins of chip component 1 from external conductive materials to prevent short circuits, and seals chip component 1 to prevent moisture or particle intrusion.

[0049] The thickness of the insulating tape cover layer is 0.025mm-0.075mm, optionally 0.05mm; the length of the insulating tape cover layer is at least 0.2mm greater than the length of chip assembly 1; the width of the insulating tape cover layer is at least 0.2mm greater than the width of chip assembly 1. The insulating tape cover layer covers the outside of the insulating adhesive wrapping layer, further enhancing the insulation effect. The insulating tape cover layer can be made of high-temperature Mylar tape, providing additional insulation protection to prevent the first layer of adhesive from failing due to aging or wear; the insulating tape cover layer can also resist external stress (such as compression or friction during assembly), preventing damage to chip assembly 1; some Mylar tape has thermal conductivity, which can assist in heat dissipation.

[0050] The conductive cloth shielding layer 2 is a single-sided adhesive conductive cloth; the thickness of the conductive cloth shielding layer 2 is 0.05mm-0.1mm, optionally 0.05mm; the length of the conductive cloth shielding layer 2 is at least 1mm longer than the length of the insulating adhesive cloth covering layer; the width of the conductive cloth shielding layer 2 is at least 1mm wider than the width of the insulating adhesive cloth covering layer; the impedance of the conductive cloth shielding layer 2 is ≤0.5Ω. The conductive cloth shielding layer 2 is disposed outside the insulating adhesive cloth covering layer, completely covering the insulating cloth covering layer. Due to its good conductivity, it can effectively shield the influence of external electromagnetic interference on the chip assembly 1.

[0051] Furthermore, the aforementioned three-layer protective structure can also utilize other materials with insulating and shielding properties, such as metal foil. This three-layer protective structure is rationally designed, simple, and easy to implement. It effectively isolates the chip component 1 from external electromagnetic interference, improving the smartwatch's anti-interference capability and ensuring its normal operation.

[0052] In one embodiment, refer to the appendix to the specification. Figure 1 , Figure 2 The chip assembly 1 includes a display driver chip 11 and a touch chip 12. The display driver chip 11 and the touch chip 12 are spaced apart, and the display driver chip 11 and the touch chip 12 are respectively provided with an insulating adhesive wrapping layer, an insulating tape covering layer, and a conductive cloth shielding layer 2 from the inside to the outside.

[0053] The display driver chip 11 is typically integrated on a COF (Copper Oxide Fold) or display FPC (Flexible Printed Circuit), responsible for converting motherboard signals into screen-recognizable drive signals to control the pixel illumination and refresh of display layers such as OLED / POL. For example, the driver IC for an OLED screen may be bonded to a flexible circuit (COF) and connected to the motherboard via a display FPC. The touch chip 12 is responsible for processing touch sensor signals.

[0054] Furthermore, the display structure also includes an FPC component 3, with the chip component 1 mounted on the FPC component 3 via a COF component 4. The FPC component 3 includes a display FPC 31 and a touch FPC 32, which are integrated into one unit. The chip component 1 includes a display driver chip 11 and a touch chip 12. The COF component 4 includes a first COF 41 and a second COF. The display driver chip 11 is mounted on the display FPC 31 via the first COF 41, and the touch chip 12 is mounted on the touch FPC 32 via the second COF. By integrating the display FPC 31 and the touch FPC 32, the welding process (pressure soldering or hand soldering) is reduced, and the integrated design improves product reliability and enhances product competitiveness.

[0055] For example, the display driver chip 11 is disposed on the first COF 41, an insulating adhesive wrapping layer is wrapped around the outside of the display driver chip 1, an insulating tape covering layer fixes the display driver chip 1 to the display FPC 31, and the insulating tape covering layer is adhered to the adhesive side of the conductive cloth shielding layer 2; the conductive cloth shielding layer 2 adheres the display driver chip 11 to the display FPC 31 through the insulating tape covering layer. The touch chip 12 is disposed on the second COF, an insulating adhesive wrapping layer is wrapped around the outside of the touch chip 12, an insulating tape covering layer fixes the touch chip 12 to the touch FPC 32, and the insulating tape covering layer is adhered to the adhesive side of the conductive cloth shielding layer 2.

[0056] Furthermore, the display structure also includes: a near-field communication module 5, an organic light-emitting diode (OLED) display 6, a polarizer 7, an optically transparent adhesive layer 8, and a cover glass 9. The near-field communication module 5 is connected to the FPC component 3. The near-field communication module 5, abbreviated as NFC, is used for short-range wireless communication such as mobile payment and data transmission. The display driver chip 11, the touch chip 12, and the near-field communication module 5 share a single FPC component 3. The organic light-emitting diode (OLED) display 6 is located on the side of the near-field communication module 5 away from the FPC component 3. The polarizer 7, abbreviated as POL, is used to control the polarization direction of light, reduce screen reflection, and improve display effect. The polarizer 7 is located on the side of the organic light-emitting diode (OLED) display 6 away from the near-field communication module 5. The optically transparent adhesive layer 8, abbreviated as OCA, is used to bond different layers (such as CG and OLED) to ensure high light transmittance and no bubbles. The optically transparent adhesive layer 8 is located on the side of the polarizer 7 away from the organic light-emitting diode (OLED) display 6. Cover glass 9, abbreviated as CG, is the outermost protective glass of the screen, used to prevent scratches and impacts. Cover glass 9 is set on the side of optically transparent adhesive layer 8 away from polarizer 7. Polarizer 7 is bonded to cover glass 9 through optically transparent adhesive layer 8.

[0057] According to another aspect of this utility model, this utility model further provides a smartwatch, including the display screen structure described in any one of the above. By setting an insulating adhesive wrapping layer, an insulating tape covering layer, and a conductive cloth shielding layer on the chip component of the smartwatch, an anti-interference protection system is formed, effectively reducing the impact of internal electromagnetic interference of the smartwatch on the chip component, improving the display quality and stability of the display screen, and ensuring the normal operation of the smartwatch.

[0058] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0059] It should be noted that the above embodiments can be freely combined as needed. The above are only optional embodiments of this utility model. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A display screen structure, characterized by The display screen structure comprises: a chip assembly; an insulating adhesive wrapping layer wrapping the outer side of the chip assembly; an insulating adhesive covering layer covering one side of the insulating adhesive wrapping layer; a conductive cloth shielding layer covering the insulating adhesive covering layer, the conductive cloth shielding layer being located on the side of the insulating adhesive covering layer away from the insulating adhesive wrapping layer.

2. The display screen structure according to claim 1, wherein: the insulating adhesive wrapping layer completely wraps the chip assembly by means of needle head adhesive spraying; the thickness of the insulating adhesive wrapping layer is 0.05mm-0.2mm.

3. The display screen structure according to claim 1, wherein: the thickness of the insulating adhesive covering layer is 0.025mm-0.075mm; the length of the insulating adhesive covering layer is at least 0.2mm greater than the length of the chip assembly; the width of the insulating adhesive covering layer is at least 0.2mm greater than the width of the chip assembly.

4. The display screen structure according to claim 1, wherein: the conductive cloth shielding layer is single-sided adhesive conductive cloth; the thickness of the conductive cloth shielding layer is 0.05mm-0.1mm; the length of the conductive cloth shielding layer is at least 1mm greater than the length of the insulating adhesive covering layer; the width of the conductive cloth shielding layer is at least 1mm greater than the width of the insulating adhesive covering layer; the impedance of the conductive cloth shielding layer is ≤0.5Ω.

5. The display screen structure according to claim 1, wherein: the chip assembly comprises a display screen driving chip and a touch chip, the display screen driving chip and the touch chip are arranged in a spaced manner, and the display screen driving chip and the touch chip are sequentially provided with the insulating adhesive wrapping layer, the insulating adhesive covering layer and the conductive cloth shielding layer from inside to outside.

6. The display structure according to any one of claims 1 to 5, wherein Further comprising: an FPC assembly, the chip assembly being arranged on the FPC assembly through a COF assembly.

7. The display screen structure according to claim 6, wherein: the FPC assembly comprises a display FPC and a touch FPC, the display FPC and the touch FPC are integrally arranged; the chip assembly comprises a display screen driving chip and a touch chip, the COF assembly comprises a first COF and a second COF, the display screen driving chip is arranged on the display FPC through the first COF, and the touch chip is arranged on the touch FPC through the second COF.

8. The display screen structure according to claim 7, wherein: the display screen driving chip is arranged on the first COF, the insulating adhesive wrapping layer wraps the outer side of the display screen driving chip, the insulating adhesive covering layer fixes the display screen driving chip on the display FPC, and the insulating adhesive covering layer is pasted on the adhesive side of the conductive cloth shielding layer; the touch chip is arranged on the second COF, the insulating adhesive wrapping layer wraps the outer side of the touch chip, the insulating adhesive covering layer fixes the touch chip on the touch FPC, and the insulating adhesive covering layer is pasted on the adhesive side of the conductive cloth shielding layer.

9. The display screen structure of claim 6, wherein, Further comprising: A near field communication module connected with the FPC assembly; An organic light emitting diode display screen arranged on a side of the near field communication module away from the FPC assembly; A polarizer arranged on a side of the organic light emitting diode display screen away from the near field communication module; An optical transparent adhesive layer arranged on a side of the polarizer away from the organic light emitting diode display screen; A cover glass arranged on a side of the optical transparent adhesive layer away from the polarizer, the polarizer being adhered to the cover glass through the optical transparent adhesive layer.

10. A smart watch, characterized by The display screen structure of any one of claims 1-9.

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