Bioelectricity detection device for wearable device and wearable device

Abstract

A bioelectricity detection device for a wearable device and the wearable device, comprising: a display cover plate (1), an ITO conductive layer, which covers the front of the display cover plate (1) and continuously covers from the front of the display cover plate (1) to the back of the display cover plate (1), the ITO conductive layer on the front side serves as an electrode for detecting bioelectric signals, and the ITO conductive layer on the back side is connected to a mainboard (3) of the wearable device to transmit the bioelectric signals to the mainboard (3). The present invention performs human bioelectricity detection by coating a layer of ITO film on the display cover plate of the wearable device without affecting the display function and touch function of the display cover plate.

Description

Technical Field

[0001] The present invention relates to the technical field of wearable devices, and in particular to a bioelectric detection device for wearable devices and the wearable device. Background Art

[0002] More and more wearable products will add detection of human bioelectricity to realize functions such as electrocardiogram (ECG) detection.

[0003] The current detection methods for human bioelectricity in wearable products are as follows:

[0004] Figure 1 This is a schematic diagram of the structure of a bioelectric detection device for wearable devices in the prior art. Please refer to Figure 1 The outer periphery of the display screen 9 of the wearable device is covered with a metal shell 10, and the shell 10 is connected to the mainboard of the wearable device. The user detects his own bioelectricity by touching the shell 10, and finally transmits the bioelectric signal to the mainboard, thereby realizing the detection of human bioelectricity.

[0005] In the existing solution, a metal cover must be covered on the wearable device, which will affect the integrity of the appearance of the wearable device. At the same time, since the wearable device itself is small, in order not to affect the appearance, the added metal cover will be smaller, resulting in a smaller area touched by the user, which can easily cause inaccurate detection. Summary of the invention

[0006] (I) Purpose of the invention

[0007] The purpose of the present invention is to provide a bioelectric detection device for a wearable device, which performs human bioelectric detection by coating a layer of ITO (Indium Tin Oxides) film on a display cover plate of the wearable device without affecting the display and touch functions of the display cover plate.

[0008] (II) Technical solution

[0009] To solve the above problems, according to one aspect of the present invention, an embodiment of the present invention provides a bioelectric detection device for a wearable device, comprising: a display cover; an ITO conductive layer, which covers the front side of the display cover and continuously covers from the front side of the display cover to the back side of the display cover; the ITO conductive layer on the front side serves as an electrode for detecting bioelectric signals, and the ITO conductive layer on the back side is connected to the mainboard of the wearable device to transmit the bioelectric signals to the mainboard.

[0010] Furthermore, the ITO conductive layer continuously covers from the front side of the display cover plate to the back side of the display cover plate via the side wall of the display cover plate.

[0011] Furthermore, the back of the display cover is coated with a black ink coating and an ITO conductive layer in sequence, and the black ink coating is used to shield the non-display area inside the wearable device.

[0012] Furthermore, it also includes: a signal connection component; the ITO conductive layer plated on the back is connected to the main board through the signal connection component to transmit the bioelectric signal to the main board.

[0013] Furthermore, it also includes: a bottom shell; a groove is formed at one end of the bottom shell, and an end of the display cover plate close to the back is arranged in the groove to connect the display cover plate and the bottom shell.

[0014] Furthermore, it also includes: a fastening component; the fastening component is arranged on the groove wall or the groove bottom of the groove to fasten the display cover.

[0015] Furthermore, the fastening component is a sealant or an adhesive.

[0016] Furthermore, it also includes: a display device; the display device is arranged at the lower back of the display cover and is electrically connected to the main board to display information of the wearable device through the display cover.

[0017] Furthermore, a circuit board provided on the display device is buckled onto the surface of the mainboard so that the display device is electrically connected to the mainboard.

[0018] According to another aspect of the present invention, an embodiment of the present invention provides a wearable device, including the bioelectric detection device of the wearable device described in any item of the first aspect.

[0019] (III) Beneficial effects

[0020] The above technical solution of the present invention has the following beneficial technical effects:

[0021] The ITO film has excellent conductivity. The ITO film continuously covers the front of the wearable device display cover to the back of the display panel, making the ITO film continuous from the outside to the inside of the display cover. Users can perform bioelectric detection by touching the ITO film on the outside of the display cover. The external ITO film transmits the detected information to the internal ITO film. Finally, the detection of human bioelectricity can be completed through a simple structural design.

[0022] Using ITO film as an electrode for detecting bioelectric signals means that the display cover of the wearable device does not need to be covered with any other structure that affects the appearance. The ITO film has good transparency, and the presence of the conductive coating cannot be seen from the front of the display cover, which can achieve consistency in appearance.

[0023] At the same time, the bioelectric detection device of the present application can coat the ITO film on the display cover of the wearable device to the maximum extent without affecting the display and touch functions of the display cover of the wearable device, thereby increasing the user detection area and avoiding incorrect detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a bioelectric detection device for wearable devices in the prior art;

[0025] Figure 2 It is a structural schematic diagram of the bioelectric detection device of the wearable device provided by the present invention;

[0026] Figure 3 It is a front schematic diagram of the display cover plate of the bioelectric detection device provided by the present invention;

[0027] Figure 4 It is a schematic diagram of the back side of the display cover plate of the bioelectric detection device provided by the present invention;

[0028] Figure 5 It is a schematic diagram of the back coating of the display cover plate of the bioelectric detection device provided by the present invention.

[0029] Reference numerals:

[0030] 1-display cover; 11-front; 12-back; 111-display area; 112-detection area; 121-transmission area; 122-coating area;

[0031] 2-display device; 3-mainboard; 4-signal connection component; 5-fastening component; 6-bottom shell; 7-black ink coating; 8-ITO conductive layer; 9-display screen; 10-face shell. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0033] The accompanying drawings show schematic diagrams of layer structures according to embodiments of the present invention. These figures are not drawn to scale and some details may be omitted. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may additionally design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0034] Obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] The present invention will be described in more detail below with reference to the accompanying drawings. In each of the accompanying drawings, the same elements are represented by similar reference numerals. For the sake of clarity, the various parts in the accompanying drawings are not drawn to scale.

[0037] Figure 2 is a schematic diagram of the structure of the bioelectric detection device of the wearable device provided by the present invention, Figure 3 is a front schematic diagram of a display cover plate of a bioelectric detection device provided by the present invention, Figure 4 This is a schematic diagram of the back side of the display cover of the bioelectric detection device provided by the present invention. Figure 2 , Figure 3 and Figure 4 .

[0038] In one embodiment, the present invention provides a bioelectricity detection device for a wearable device, the device comprising:

[0039] Display cover plate 1, the ITO conductive layer covers the front side of the display cover plate 1, and continuously covers from the front side of the display cover plate 1 to the back side of the display cover plate 1; the ITO conductive layer on the front side can be used as an electrode for detecting bioelectric signals, and the ITO conductive layer on the back side is connected to the main board 3 of the wearable device to transmit the bioelectric signals to the main board 3 to complete the bioelectric detection.

[0040] It can be understood that the ITO conductive layer continuously covers from the front side of the display cover plate 1 to the back side of the display cover plate 1, and can be continuously covered to the back side of the display cover plate 1 through the side wall of the display cover plate 1, or it can be other ways, such as punching holes in the display cover plate 1, and the inner wall of the hole is covered with the ITO conductive layer, and continuously covers to the back side of the display cover plate 1 through the small holes.

[0041] ITO is an N-type oxide semiconductor - indium tin oxide. The ITO film is an indium tin oxide semiconductor transparent conductive film, which has good conductivity and transparency. Applying it on the display cover plate 1 of the wearable device will not affect the display function and touch function of the wearable device.

[0042] Optionally, the display cover plate 1 is a glass cover plate.

[0043] Preferably, the ITO conductive layer completely covers the front of the display cover plate 1, or only covers the four sides of the front of the display cover plate 1, or covers the front of the display cover plate 1 in the form of dots. The ITO conductive layer completely covers the side wall of the display cover plate 1, or the ITO conductive layer covering the side wall of the display cover plate 1 is in the form of strips, which can be used to connect the coating on the front and back. The ITO conductive layer completely covers the back of the display cover plate 1, or only covers the four sides of the back of the display cover plate 1, or covers the back of the display cover plate 1 in the form of dots, which can be connected to the coating on the front.

[0044] In one embodiment, the display cover plate 1 includes a front surface 11 , side walls and a back surface 12 .

[0045] Please check Figure 3 In one embodiment, ITO is applied around the front side of the display cover plate 1 as an electrode. The front side 11 of the display cover plate 1 includes a display area 111 and a detection area 112 (ITO area). The display area 111 is located in the middle of the front side 11 to display wearable device information; the detection area 112 surrounds the outside of the display area 111 and is used to coat the ITO conductive layer.

[0046] Optionally, the area of ​​the display area 111 is greater than or equal to the area of ​​the detection area 112 .

[0047] Please check Figure 4 In one embodiment, ITO is applied to the four sides of the back side of the display cover plate 1 for connection with the main board. The back side 12 of the display cover plate 1 includes a transparent area 121 and a coating area 122. To achieve a better display effect, the transparent area 121 corresponds to the display area 111, or the transparent area 121 is larger than the display area 111, so that the information of the wearable device can be displayed on the display area 111 through the transparent area 121. The coating area 122 is used to coat the ITO conductive layer and connect with the main board.

[0048] Optionally, the area of ​​the transmission area 121 is greater than or equal to the area of ​​the coating area 122 .

[0049] The coating area 122 may correspond to the detection area 112 or may not correspond to the detection area 112 , and those skilled in the art may design the area according to the specific conditions of the product.

[0050] The detection area 112 on the front side 11 of the display cover 1, the coating area 122 on the back side 12, and the side walls are all coated with a continuous ITO conductive layer. The ITO conductive layer in the detection area 112 serves as an electrode to detect bioelectric signals. The ITO conductive layer in the coating area 122 is connected to the mainboard 3 of the wearable device. The ITO conductive layer in the detection area 112 transmits the detected bioelectric signals to the mainboard 3 through the continuous ITO conductive layer.

[0051] Specifically, the ITO conductive layer on the front surface 11 of the display cover plate 1 is continuous to the ITO conductive layer on the back surface 12, and at this time, the side wall of the display cover plate 1 is inevitably plated with an ITO conductive layer. The area of ​​the ITO conductive layer plated on the side wall of the display cover plate 1 can be designed according to actual conditions.

[0052] In a preferred embodiment, Figure 5 This is a schematic diagram of the back coating of the display cover of the bioelectric detection device provided by the present invention. In order to ensure that the non-display area inside the wearable device will not be presented to the user through the display cover 1, before the ITO conductive layer 8 is plated on the coating area 122, a layer of black ink coating 7 is first plated. The black ink has a certain covering power and low transparency, and will cover the base color to a certain extent.

[0053] The bioelectric detection device of a wearable device provided by the present invention further includes a bottom shell 6, which is used to fix the display cover 1. Figure 2 A groove is formed at one end of the bottom shell 6 , and one end of the display cover plate 1 close to the back surface 12 is assembled in the groove, so that the display cover plate 1 is connected to the bottom shell 6 .

[0054] A fastening component 5 is also provided in the groove wall or groove bottom of the groove, and the fastening component 5 makes the back side 12 of the display cover plate 1 tightly connected with the groove. Optionally, the fastening component 5 is a sealant or an adhesive, and the sealant or adhesive can be directly applied to the groove wall or groove bottom of the groove, and then the bottom shell 6 is installed, which can not only achieve the purpose of connecting the bottom shell 6 and the display cover plate 1, but also play a role in sealing and waterproofing.

[0055] In one embodiment, the mainboard 3 of the wearable device is disposed in the bottom shell 6 , and the ITO conductive layer coated on the coating area 122 of the back side 12 of the display cover 1 is connected to the mainboard 3 to transmit the bioelectric signal to the mainboard 3 .

[0056] Optionally, the ITO conductive layer plated on the plated area 122 is connected to the main board 3 through the signal connection component 4 to transmit the bioelectric signal to the main board 3 to ensure the stability of the signal connection.

[0057] Preferably, the signal connection component 4 may be a spring or a Pogo Pin.

[0058] Please check Figure 2 A bioelectric detection device for a wearable device provided by the present invention also includes a display device 2, which is arranged at the lower back of the display cover plate 1, so that the display cover plate 1 and the display device 2 together constitute a display module of the wearable device, and the display device 2 displays information of the wearable device through the display cover plate 1.

[0059] The circuit board provided on the display device 2 is buckled onto the surface of the main board 3 , so that the display device 2 is electrically connected to the main board 3 .

[0060] Optionally, the circuit board is a flexible printed circuit (FPC), which is a printed circuit board made of polyimide or polyester film as a substrate and has high reliability and excellent flexibility.

[0061] The present invention aims to protect a bioelectric detection device for a wearable device, comprising: a display cover plate 1, an ITO conductive layer covering the front of the display cover plate 1, and continuously covering from the front of the display cover plate 1 to the back of the display cover plate 1; the ITO conductive layer on the front can be used as an electrode for detecting bioelectric signals, and the ITO conductive layer on the back is connected to the main board 3 of the wearable device to transmit the bioelectric signal to the main board 3 to complete the bioelectric detection. A wearable device is also protected, including the above-mentioned bioelectric detection device. Therefore, the wearable device of the present invention is to coat a layer of ITO film on the display cover plate, and perform human bioelectric detection without affecting the display and touch functions of the display cover plate. The ITO film has good conductivity. The ITO film is continuously coated on the front, side and back of the display cover plate of the wearable device, so that the conductive layer is continuous from the outside to the inside of the display cover plate, and finally the detection of human bioelectricity can be completed through a simple structural design. The ITO film also has good transparency, so the display cover of the wearable device does not need to be covered with any other structure that affects the appearance. The ITO film is only plated around the display cover, and the conductive coating is almost invisible from the front of the display cover, which can achieve consistency in appearance. And the bioelectric detection device of the present application can plate the ITO film on the display cover of the wearable device to the maximum extent without affecting the touch function of the display cover of the wearable device, so as to increase the area detected by the user and avoid the occurrence of incorrect detection.

[0062] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A bioelectric detection device for a wearable device, characterized in that: include: A display cover plate (1), wherein the display cover plate (1) is a glass cover plate; An ITO conductive layer, which covers the front side of the display cover plate (1) and continuously covers from the front side of the display cover plate (1) to the back side of the display cover plate (1); The front ITO conductive layer serves as an electrode for detecting bioelectric signals, and the back ITO conductive layer is connected to a mainboard (3) of a wearable device to transmit the bioelectric signals to the mainboard (3).

2. The device according to claim 1, characterized in that The ITO conductive layer continuously covers from the front side of the display cover plate (1) to the back side of the display cover plate (1) via the side wall of the display cover plate (1).

3. The device according to claim 1, characterized in that The back side of the display cover plate (1) is coated with a black ink coating and the ITO conductive layer in sequence, and the black ink coating is used to cover the non-display area inside the wearable device.

4. The device according to claim 1, characterized in that Also includes: Signal connection component (4); The ITO conductive layer plated on the back is connected to the main board (3) via the signal connection component (4) so ​​as to transmit the bioelectric signal to the main board (3).

5. The device according to claim 1, characterized in that Also includes: Bottom shell (6); A groove is formed at one end of the bottom shell (6), and an end of the display cover plate (1) close to the back surface is arranged in the groove to connect the display cover plate (1) and the bottom shell (6).

6. The device according to claim 5, characterized in that Also includes: Fastening member (5); The fastening component (5) is arranged on the groove wall or the groove bottom of the groove to fasten the display cover plate (1).

7. The device according to claim 6, characterized in that The fastening component (5) is a sealant or an adhesive.

8. The device according to claim 1, characterized in that Also includes: Display device (2); The display device (2) is arranged below the back side of the display cover plate (1) and is electrically connected to the main board (3) so as to display information of the wearable device through the display cover plate (1).

9. The device according to claim 8, characterized in that The circuit board provided on the display device (2) is buckled onto the surface of the main board (3) so that the display device (2) is electrically connected to the main board (3).

10. A wearable device, characterized in that: A bioelectric detection device comprising the wearable device according to any one of claims 1 to 9.

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