KR20210000699A - Detachable function module for biometric data acquisition and head mounted display apparatus comprising the same - Google Patents

Abstract

A detachable function module for acquiring biometric data according to an embodiment of the present invention is a detachable function module for acquiring biometric data, which can be mounted on a head mounted display device. The detachable function module comprises: a first biometric data acquisition module capable of acquiring first biometric data by being in contact with user skin; a second biometric data acquisition module capable of acquiring second biometric data by photographing a face of the user accommodated in the first biometric data acquisition module; and a connection module electrically connected to the first biometric data acquisition module and the second biometric data acquisition module to pre-process the first biometric data and the second biometric data, and transmitting the pre-processed data to an external device. The first biometric data acquisition module is detachable from the second biometric data acquisition module and the connection module. According to an embodiment of the present invention, a plurality of selectively detachable biometric data acquisition modules are provided in a head mounted display device, so as to check user cognitive and emotional states in real time by detecting and analyzing the specificity of brain waves or gaze movement of the user who is checking a virtual reality image, and to control the function of the head mounted display device using the user gaze position information and EEG information.

Description

Detachable function module for acquiring biometric data and a head mounted display device including the same {DETACHABLE FUNCTION MODULE FOR BIOMETRIC DATA ACQUISITION AND HEAD MOUNTED DISPLAY APPARATUS COMPRISING THE SAME}

The present invention relates to a detachable function module for acquiring biometric data and a head mounted display device including the same, and more particularly, to a detachable function module for acquiring biometric data capable of obtaining biometric data of a user and detachable to the head mounted display device, and It relates to a head mounted display device including this.

In general, a head-mounted display (HMD) is formed in a structure that can be worn on the user's head, so that the user can experience a spatial and temporal similar to the real one, giving the user a virtual reality (VR) image. It is a display device that provides.

Such a head mounted display device is composed of a body formed in a goggle shape to be worn on the user's eyes, and a wearing part formed in a band shape to be connected to the body to fix the body to the user's head. . Here, as a means for outputting a virtual reality image on the main body, a portable terminal device such as a smartphone or the like is installed, or a display device connected to a PC such as a monitor is installed.

However, since the conventional head mounted display device is manufactured so that the user can only visually check the image output from the image output means installed in the portable terminal device, the utilization is low, and the type of content provided to the image output means is low. There was a very limited problem.

In addition, in order to add additional functions to the head mounted display device in addition to the function of outputting images to the head mounted display device, it is necessary to newly manufacture a head mounted display device to which the additional functions are added. In addition, even in the event of a malfunction of the functional unit that implements a specific function, replacement or repair for each part is not possible, and as the entire hardware or software connected to the functional unit must be replaced, maintenance is not easy and the cost increases. there was.

Korean Patent Application Publication No. 10-2017-0094883

The present invention was devised to solve the above problems, and an object of the present invention is to be selectively detachable to a head mounted display device, and to detect changes in the user's physical, cognitive and emotional by measuring the user's biometric data. It is to provide a removable functional module for acquiring biometric data and a head mounted display device including the same.

The subject of the present invention is not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

The detachable function module for obtaining biometric data according to an embodiment of the present invention for solving the above problems is a detachable function module for obtaining biometric data that can be mounted on a head mounted display device, and is capable of obtaining first biometric data by contacting the user's skin. A first biometric data acquisition module; A second biometric data acquisition module capable of obtaining second biometric data by photographing a user's face accommodated in the first biometric data acquisition module; And a connection module electrically connected to the first biometric data acquisition module and the second biometric data acquisition module to preprocess the first biometric data and the second biometric data and transmit the preprocessed to an external device. Including, the first biometric data acquisition module is detachable to the second biometric data acquisition module and the connection module.

The first biometric data acquisition module includes a connector mountable to the head mounted display device and electrically connectable to the connection module, and at least one detachable means detachable to the second biometric data acquisition module and the connection module. A facial support mask; And a biometric signal detection sensor installed on the face support mask, electrically connected to the connector, and capable of acquiring the first biometric data when contacting the user's skin.

The bio-signal detection sensor may be in contact with a user's forehead to detect a user's brainwave signal.

The biosignal detection sensor may further detect at least one of a user's heartbeat signal, an electrocardiogram signal, an EMG signal, and a skin temperature signal by contacting the user's temporal and cheekbones.

The biosignal detection sensor may be formed of a rigid material or a flexible material.

The second biometric data acquisition module is mounted on the head mounted display device and disposed on one side of the lens, and includes at least one detachable means detachable to the first biometric data acquisition module on one side, and the inside of the second biometric data acquisition module A cover body including a cover body in which a lens through hole is formed in which one surface of the lens is exposed, and a holder protruding obliquely at a predetermined angle from the cover body toward the side of the first biometric data acquisition module, and having an accommodation space formed therein part; A photographing unit mounted on the holder and capable of capturing at least a part of a user's face accommodated in the first biometric data acquisition module; And a light source unit installed in the holder to emit light toward a photographing direction of the photographing unit.

The connection module includes: a housing having at least one detachable means detachable from the first biometric data acquisition module and forming an accommodation space therein; After pre-processing the first biometric data and the second biometric data, which are installed inside the housing and disposed in the accommodation space, and obtained from the first biometric data acquisition module and the second biometric data acquisition module, A control board capable of transmitting to the external device through wired or wireless communication; It is installed in the housing and connected to the control panel, and is electrically connected to the first biometric information acquisition module and the second biometric information acquisition module to transmit the first biometric data and the second biometric data to the control panel. Socket part; And an external input terminal installed in the housing and connected to the control plate and electrically connectable to the external device.

The first biometric data acquisition module may be detachable from each of the second biometric data acquisition module and the connection module through magnetic force.

Meanwhile, a head mounted display device according to an embodiment of the present invention includes a detachable functional module for acquiring biometric data according to an embodiment of the present invention.

According to an embodiment of the present invention, by providing a plurality of biometric data acquisition modules selectively detachable to the head mounted display device, the specificity of the brain wave or gaze movement of the user who is checking the virtual reality image is detected and analyzed to recognize the user. And, as well as being able to check the emotional state in real time, it is possible to control the function of the head mounted display device using the user's gaze position information and brain wave information.

In addition, by detecting the specificity of the user's brain waves or gaze movements who are checking the virtual reality image and analyzing it to check the user's cognitive and emotional state in real time, content that meets the user's current state or user's intention is provided to the user. It can be provided in real time, and furthermore, content can be developed using information on physical changes of the user.

In addition, as it is possible to provide a user with content that meets the user's current state or the user's intention in real time, various content may be provided to the user to improve the user's experience satisfaction.

In addition, as it is formed in the form of a detachable module, it can be applied to various types of head-mounted display devices, so that the usability of the product is increased, and even if any one of the plurality of function modules is damaged or deformed, only the corresponding function module is It can be replaced or repaired, so maintenance can be easy.

1 is a perspective view showing a head mounted display device equipped with a removable functional module for acquiring biometric data according to an embodiment of the present invention.
2 is a front view showing a frame portion of the face support mask shown in FIG. 1.
3 is a longitudinal cross-sectional view of a face support mask.
4 is a diagram schematically showing a process of wearing a face support mask.
5 is a front view showing a state in which a buffer part is installed in the frame part of FIG. 2.
6 is a schematic cross-sectional view showing a modified embodiment of a bio-signal detection sensor.
7 is a front view of a face support mask.
8 is a diagram schematically showing another modified embodiment of a bio-signal detection sensor.
9 is a schematic cross-sectional view of a connector.
10 is a rear view of the face support mask.
11 is a front view showing another embodiment of a biometric signal detection sensor.
12 and 13 are cross-sectional views schematically illustrating a state in which the bio-signal detection sensor of FIG. 11 is installed in the face support mask.
14 is an exploded perspective view showing a detachable functional module for acquiring biometric data according to an embodiment of the present invention.
15 is a perspective view illustrating a second biometric data acquisition module.
16 is a schematic cross-sectional view illustrating a state in which a first biometric data acquisition module and a connection module are coupled.

Hereinafter, various embodiments will be described in more detail with reference to the accompanying drawings. The embodiments described in this specification may be variously modified. Certain embodiments may be depicted in the drawings and described in detail in the detailed description. However, specific embodiments disclosed in the accompanying drawings are only intended to facilitate understanding of various embodiments. Therefore, the technical idea is not limited by the specific embodiments disclosed in the accompanying drawings, and it should be understood to include all equivalents or substitutes included in the spirit and scope of the invention.

Terms including ordinal numbers such as first and second may be used to describe various elements, but these elements are not limited by the above-described terms. The above-described terms are used only for the purpose of distinguishing one component from other components.

In the present specification, terms such as "comprises" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance. When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

Meanwhile, a "module" or "unit" for a component used in the present specification performs at least one function or operation. And, the "module" or "unit" may perform a function or operation by hardware, software, or a combination of hardware and software. In addition, a plurality of "modules" or a plurality of "units" excluding "module" or "unit" to be performed in specific hardware or performed by at least one processor may be integrated into at least one module. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In addition, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be abbreviated or omitted.

1 is a perspective view showing a head mounted display device 200 equipped with a removable functional module 100 for acquiring biometric data according to an embodiment of the present invention.

Referring to FIG. 1, a removable functional module 100 for obtaining biometric data according to an embodiment of the present invention (hereinafter referred to as'removable functional module 100 for obtaining biometric data') is selectively applied to the head mounted display device 200. It is detachable and can acquire biometric data of a user wearing the head mounted display device 200.

Here, the head-mounted display device 200 in which the detachable functional module 100 for acquiring biometric data is detachable is formed in a structure that can be worn on the user's head, so that the user can experience a spatial and temporal experience similar to the real one. As a display device that provides a virtual reality (VR) image, it may include a wearer and a display body.

The wearing part is formed in the form of a wearable band around the user's head, and may include an inner diameter adjusting means on one side to adjust the size of the inner diameter.

The display main body is supported by the wearing unit and can be in close contact with the user's face, and is connected to a PC inside to provide an experience image to the user (not shown) and a plurality of images that are output from the image output unit to the user. It may be provided with the lenses (200a). In addition, the display body may further include a processor, a memory for storing and executing program data, a storage, a communication port for communicating with an external device, a touch panel, a user interface device such as a key, and a button. have.

For example, the detachable functional module 100 for acquiring biometric data may be applicable to all head mounted display devices including the above-described configuration, and may preferably be applied to currently commercially available head mounted display devices such as HTC's VIVE model. have.

In addition, the detachable functional module 100 for obtaining biometric data includes a first biometric data obtaining module 110.

The first biometric data acquisition module 110 is formed in a form capable of acquiring first biometric data by contacting the user's skin and detachable to the second biometric data acquisition module 120 and the connection module 130 to be described later. .

Hereinafter, the first biometric data acquisition module 110 will be described in more detail with reference to FIGS. 1 to 13.

2 is a front view showing the frame portion 1111a of the face support mask 111 shown in FIG. 1, FIG. 3 is a longitudinal sectional view of the face support mask 111, and FIG. 4 is a wearing of the face support mask 111 It is a diagram schematically showing the process. In addition, FIG. 5 is a front view showing a state in which the buffer part 1111b is installed in the frame part 1111a of FIG. 2, and FIG. 6 is a schematic cross-sectional view showing a modified embodiment of the biometric signal detection sensor 112, and FIG. 7 is a front view of the face support mask 111. In addition, FIG. 8 is a diagram schematically showing another modified embodiment of the biometric signal detection sensor 112, FIG. 9 is a schematic cross-sectional view of the connector 113, and FIG. 10 is a view of the face support mask 111 It is a rear view.

1 and 4, the first biometric data acquisition module 110 may include a face support mask 111 that can be mounted on the head mounted display device 200.

The face support mask 111 is installed on the head mounted display device 200 that provides a virtual reality image to the user, and when the user wears it, it comes into contact with the user's face to support the head mounted display device 200 on the user's face. can do.

In addition, the face support mask 111 may include a mask body 1111.

1 to 3, the mask body 1111 is formed in a curved structure along the width direction (Y-axis direction) and height direction (Z-axis direction) of the mask body 1111, and A see-through hole 1111aa for communicating the user's eyes with the lens 200a provided in the head mounted display device 200 may be formed.

In addition, the mask body 1111 may be formed in a structure that is detachable to the head mounted display device 200.

1 and 10, the mask body 1111 may be provided with a coupling means 114 installed in the mask body 1111 to fix the mask body 1111 to the head mounted display device 200.

The coupling means 114 is installed on the other surface of the mask body 1111 facing one surface of the mask body 1111 on which the bio-signal detection sensor 112, which will be described later, is installed, and is provided along the edge portion of the mask body 1111. Can be installed in the area. For example, the coupling means 114 may be formed in a Velcro shape. However, the coupling means 114 is not limited thereto, and may be changed and applied in various forms within a range capable of performing the same function. For reference, the head mounted display device 200 may be provided with another coupling means (not shown) that can be coupled to the coupling means 114 provided in the face support mask 111.

In addition, the mask body 1111 may include a frame portion 1111a.

2 and 4, the frame portion 1111a is disposed opposite to the user's forehead area and the user's eye area when the user wears it, and may be formed in a structure surrounding the user's forehead area and the user's eye area. have. Further, a see-through hole 1111aa in which the user's eyes and the user's nose may be positioned may be formed inside the frame portion 1111a.

The frame portion 1111a will be described in more detail.

2 and 4, the frame part 1111a may include a first support part 1111a1 and a second support part 1111a2.

The first support part 1111a1 may be disposed opposite to the user's forehead when worn by the user. In addition, a mounting groove recessed in a predetermined depth along one direction (X-axis direction in FIG. 4) may be formed in the inner center of the first support part 1111a1 so that the connector 113 to be described later can be installed. Here, a through hole may be formed in the mounting groove so that a part of the connector 113 installed in the mounting groove may be exposed to the outside of the frame portion 1111a, as shown in FIG. 9. For example, a fastening hole into which a fastening means (not shown) for fixing the connector 113 to the first support part 1111a1 may be further formed in the mounting groove.

Referring back to FIGS. 2 and 4, the second support part 1111a2 is a mask from one side and the other end of the first support part 1111a1 along the width direction of the mask body 1111 (Y-axis direction in FIG. 2). It may extend to be curved downward of the body 1111. Here, extending to the lower side of the mask body 1111 means extending from the end of the mask body 1111 in a downward direction along the height direction of the mask body 1111 (Z-axis direction in FIG. can do. In addition, the second support part 1111a2 is a first extension section extending vertically from the end of the first support part 1111a1 based on FIG. 2 so that the second support part 1111a2 can be disposed opposite to the temporal and cheekbones of the user's face when worn by the user. And, it may include a second extension section extending in the horizontal direction from the end of the first extension section. Accordingly, a see-through hole 1111aa capable of accommodating the user's eyes and the user's nose may be formed inside the first support part 1111a1 and the second support part 1111a2. Meanwhile, although not shown in the drawings, the second support portion 1111a2 may be formed in a structure capable of adjusting the length along the height direction of the mask body 1111 (Z-axis direction in FIG. 2 ). At this time, a length adjustment member (not shown) guides the movement of the second support part 1111a2 on the inside of the first support part 1111a1 and the second support part 1111a2 and fixes the second support part 1111a2 moved to a predetermined position (not shown). ) May be provided. Accordingly, a user who uses the face support mask 111 can stably support the head mounted display apparatus 200 by adjusting the length of the second support portion 1111a2 to suit the positions of his/her eyes and nose.

For example, the frame part 1111a may be formed of a plastic material or a carbon material having a predetermined strength against bending. Further, the frame portion 1111a may be formed with a plurality of through-holes penetrating the frame portion 1111a so as to reduce the weight of the frame portion 1111a. However, the frame portion 1111a is not limited thereto, and may be applied to various materials.

In addition, the mask body 1111 may include a buffer portion 1111b.

3 and 4, the buffer part 1111b is installed on one surface of the frame part 1111a facing the user's face, and is supported by the user's face when worn by the user, so that the head mounted display device 200 The load can be evenly distributed across the user's face. For example, the buffer part 1111b may be formed in the form of a foam (FOAM) made of PE material having a predetermined thickness. However, the buffer part 1111b is not limited thereto, and may be changed and applied to a material such as sponge, gel, latex, air foam, etc. to perform the same function. In addition, the buffer portion 1111b may be installed on one surface of the frame portion 1111a as shown in FIG. 5 and may be disposed along an edge region of the frame portion 1111a.

In addition, the mask body 1111 may further include an elastic member 1111c.

3 and 4, the elastic member 1111c is formed of an elastic fabric material having an elasticity to surround the frame part 1111a and the buffer part 1111b, and a bio-signal detection sensor 112 to be described later. ) Can be elastically supported. Here, a buffer space 1111ca may be formed between the buffer portion 1111b and the frame portion 1111a disposed in the edge region of the frame portion 1111a. Therefore, when the user wears, the elastic member 1111c is pressed against the user's forehead and is pushed toward the buffer space 1111ca and is stretched outward and elastically deformed into a shape corresponding to the user's forehead, whereby the elastic member 1111c The bio-signal detection sensor 112 installed on the inside of) may be completely in close contact with the user's forehead. For example, the elastic member 1111c may be formed of a material having a higher elastic modulus than that of the buffer portion 1111b. In addition, the surface of the elastic member 1111c may be formed of nylon or suede material to minimize friction when contacting the skin.

That is, the face support mask 111 is supported by the user's face on one side of the mask body 1111 to distribute the load of the head mounted display device 200 to the user's face, and an elastic fabric When formed of a material and pressurized on the user's forehead, by providing an elastic member (1111c) that extends outward and adheres to the user's forehead, it is possible to stably secure the surface where the biometric signal sensor 112 contacts the skin. . In addition, by stably supporting the head mounted display device 200 on the user's face, it is possible to prevent the head mounted display device 200 from being separated from the user's face due to the user's movement. In addition, the biosignal detection sensor 112 is completely in close contact with the user's forehead to prevent the formation of a gap between the user's skin and the biosignal detection sensor 112, and thereby the separation of the biosignal detection sensor 112 Can be prevented. In addition, it is possible to elastically support the bio-signal detection sensor 112, thereby minimizing the pressure applied to the user's forehead, thereby minimizing the occurrence of marks or pain on the user's skin.

In addition, the face support mask 111 may include a connector 113 that can be electrically connected to a connection module 130 to be described later.

3 and 9, the connector 113 is installed in the mask body 1111 to be electrically connected to the biosignal detection sensor 112, and the socket portion 133 provided in the connection module 130 to be described later. Can be connected to Here, the connector 113 may be coupled to the socket portion 133 provided in the connection module 130 using magnetic force. For example, the connector 113 is electrically connected to the connector housing 1131 installed on the mask body 1111 and the biosignal detection sensor 112, and the pin portion 1132 disposed in the inner central portion of the connector housing 1131, And a magnet 1133 disposed around the pin portion 1132. For reference, the socket unit 133 provided in the connection module 130 has a signal transmission means (not shown) and a pin unit 1132 connected to the pin unit 1132 to transmit a signal from the pin unit 1132 to the controller board 132. Magnetic means (not shown) coupled to the magnet 1133 of the connector 113 may be provided only when) coincides with the center of the signal transmission means.

In addition, the face support mask 111 may include a second biometric data acquisition module 120 and at least one detachable means 115 detachable from the connection module 130 to be described later.

In more detail, the first support part 1111a1 and the second support part 1111a2 of the face support mask 111 include at least one detachable detachable means 115 with the second biometric data acquisition module 120 and the connection module 130. ) May be provided.

Here, the first biometric data acquisition module 110 may be detachable from the second biometric data acquisition module 120 and the connection module 130 respectively through magnetic force.

That is, at least one detachment means 115 provided in the face support mask 111 of the first biometric data acquisition module 110 is formed of a magnetic material having a magnetic force, through which the first biometric data acquisition module 110 The face support mask 111 may be detachably coupled to the second biometric data acquisition module 120 and the connection module 130. For example, the second biometric data acquisition module 120 and the connection module 130 include at least one detachment unit 115 provided in the face support mask 111 and another detachment unit made of a magnetic material that can be coupled through magnetic force ( 1211a and 131a) may be provided, respectively.

In addition, the first biometric data acquisition module 110 may include a biometric signal detection sensor 112.

3 and 4, the bio-signal detection sensor 112 is installed on the face support mask 111 to be electrically connected to the connector 113, and can obtain first biometric data when it contacts the user's skin. have.

In more detail, the bio-signal detection sensor 112 is installed on one side of the mask body 1111 facing the user's face when the user wears it, and is attached to the elastic member 1111c of the mask body 1111 when the user wears it. It is elastically supported and comes into contact with the user's skin. Accordingly, when the power is applied by being connected to the head mounted display device 200, the biosignal detection sensor 112 detects the user's biosignal and transmits the detected biosignal to the electrically connected connection module 130. do. Here, an EMI shield (Electro Magnetic Interference Shield) process for shielding electromagnetic waves may be additionally performed on the biosignal detection sensor 112.

In addition, the biosignal detection sensor 112 may be formed of a rigid material.

In more detail, the bio-signal detection sensor 112 may be formed of a metal material and formed in the form of a disk installed through the elastic member 1111c.

Referring to FIG. 6, the biosignal detection sensor 112 may be formed in a structure capable of being in close contact with the user's forehead by using an elastic force of the electrode itself in the form of a disk.

In more detail, the bio-signal detection sensor 112 is installed in the mask body 1111 so that when an external force is applied from the outside, it is linearly moved in one direction and compressed, and when the external force is released, it is linearly moved in the other direction by the elastic force. It may be formed with an elastic support structure that is restored to the state of.

The biosignal detection sensor 112 formed of an elastic support structure will be described in more detail.

The biosignal detection sensor 112 may include a support ring 1121, a guide housing 1122, an electrode unit 1123, and an elastic support member 1124. The support ring 1121 may be formed in a circular ring shape in which a press-fit groove is formed toward the inner center along the circumference, and may be installed on the mask body 1111. For example, the support ring 1121 may be installed in the form of being pressed into the mask body 1111. The guide housing 1122 may be fastened to the inside of the support ring 1121, and a guide hole 1122a may be formed therein along the central axis direction. In addition, a stepped jaw that restricts movement of the electrode unit 1123 may be formed inside the guide housing 1122. For example, threads that can be fastened to each other may be formed on the outer peripheral surface of the guide housing 1122 and the inner peripheral surface of the support ring 1121. The electrode unit 1123 may be installed inside the guide housing 1122 and disposed in a state capable of linear movement along the guide hole 1122a. In addition, one side and the other side of the electrode unit 1123 may protrude outside the guide housing 1122, respectively. Here, on one side of the electrode unit 1123, a protruding piece that is supported by a stepped jaw formed in the guide housing 1122 may be formed. The elastic support member 1124 is installed inside the guide housing 1122 and is formed in the form of a coil spring to elastically support the electrode unit 1123.

Meanwhile, the bio-signal detection sensor 112 formed in an elastic support structure may be installed on the elastic member 1111c of the mask body 1111 or may be installed on the buffer part 1111b installed on one surface of the frame part 1111a. For reference, when the biometric signal detection sensor 112 is installed in the buffer unit 1111b, the buffer unit 1111b corresponds to one surface of the frame unit 1111a so that it can directly contact the user's skin when the user wears it. It can be formed in a shape that is. In this case, the mask body 1111 may be formed in a structure in which the elastic member 1111c is not installed.

In addition, the biosignal detection sensor 112 may be formed of a flexible material.

In more detail, the biosignal detection sensor 112 may be formed in a form that is detachable on one surface of the elastic member 1111c by plating an electrode portion in the form of a thin film on a flexible substrate.

11 is a front view showing another embodiment of the bio-signal detecting sensor 112, and FIGS. 12 and 13 are cross-sectional views schematically showing a state in which the bio-signal detecting sensor 112 according to FIG. 11 is installed in a face support mask.

Referring to FIG. 11A, the biosignal detection sensor 112 includes a flexible substrate 1126 installed on the mask body 1111 and an electrode part 1123 formed on one surface of the flexible substrate 1126 with a preset thickness. ) Can be included.

The flexible substrate 1126 is manufactured in the form of a flexible FPCB (FLEXIBLE PRINTED CIRCUITS BOARD) having a flexibility, and from the first region 1126a and the first region 1126a in which a plurality of electrode portions 1123 are formed on one side. It may be configured as a second region 1126b extending and electrically connectable to the connector 113. For example, the first region 1126a is formed in a radial structure in which a plurality of linear substrates 11262 extend in different directions from the center substrate 11261, and the plurality of linear substrates 11262 has a thin-film electrode portion ( 1123) may be formed. In addition, the second region 1126b may be formed in a linear structure extending from the first region 1126a to a predetermined length along one direction.

11A and 12, the electrode unit 1123 is formed on a plurality of linear substrates 11262 extending radially from the center substrate 11261, respectively, and methods such as plating, deposition, and printing are used. Through it, each linear substrate may be formed with a preset thickness. For example, the electrode unit 1123 is applied with gold (Au) to accurately detect a bio-signal, and may be formed to a thickness of less than 1 mm.

In addition, the biosignal detection sensor 112 may further include a conductive elastic support 1127.

Referring to FIG. 13, the conductive elastic support 1127 may be attached to one surface of the electrode unit 1123 and supported by the user's skin when worn by the user. For example, the conductive elastic support 1127 may have an adhesive layer (not shown) formed on one surface thereof, and may be formed of a protruding hydrogel having a predetermined thickness. Accordingly, even when sweat or other secretion occurs in the process of measuring the user's biosignal due to the biosignal detection sensor 112 being in contact with the user's skin, it is possible to accurately measure the biosignal by preventing the impedance change due to the secretion. have.

In addition, the biosignal detection sensor 112 may further include a protective sheet 1128 supporting the flexible substrate 1126.

Referring to (b) of FIG. 11, the protective sheet 1128 is made of plastic or carbon material, is formed in a shape corresponding to the flexible substrate 1126, is attached to one side of the flexible substrate 1126, and is attached to the flexible substrate ( 1126) can be supported. In addition, a plurality of through holes 1128a may be formed inside the protective sheet 1128 so that one surface of the electrode unit 1123 may be exposed to an external space.

Meanwhile, a conductive elastic support 1127 may be additionally attached to the protective sheet 1126 if necessary.

In addition, the bio-signal detection sensor 112 may be disposed opposite to the frontal lobe portion when the user wears it to detect the user's EEG signal.

2 and 4, the bio-signal detection sensor 112 may be disposed at a position facing the user's forehead when the user wears it. That is, the biosignal detection sensor 112 may be disposed at a position opposite to one surface of the first support part 1111a1 positioned on the user's forehead when the user wears it. Here, the biosignal detection sensor 112 may be provided in plural. Referring to FIG. 7, a plurality of bio-signal detection sensors 112 may include a ground part, a reference part, and a measurement part channel1 and channel2. For example, the ground and the reference are disposed at positions corresponding to the center of the first support 1111a1 and are spaced apart by a predetermined distance along the height direction (Z-axis direction) of the mask body 1111 Can be. In addition, the measurement units (channel1, channel2) are measured along the width direction (Y-axis direction) of the mask body 1111 based on the center of the first support unit 1111a1 in which the ground and the reference are located. 1 It may be disposed opposite to each other on one side and the other side of the support (1111a1). For example, a plurality of measuring units (channel1, channel2) disposed opposite to each other may be provided.

In addition, the biosignal detection sensor 112 may be disposed opposite to the temporal and cheekbones when the user is wearing it, so that the biosignal of the user may be further detected.

Referring to FIGS. 2 and 7, the bio-signal detection sensor 112 may be disposed at a position facing the user's temporal and cheekbones when the user wears it. That is, the biosignal detection sensor 112 may be disposed at a position opposite to one surface of the second support part 1111a2 located on the temporal and cheekbones of the user when the user wears it. Accordingly, the bio-signal detection sensor 112 in contact with the user's temporal and cheekbones includes a user's heart rate signal (PPG: Photoplethysmogram), an electrocardiogram signal (ECG), an electromyography signal (EMG: Electromyography), and a skin temperature signal (Skin). temperature) can be further detected.

Meanwhile, although not shown in the drawings, the biometric signal detection sensor 112 may be electrically connected to other detection means in contact with body parts other than the user's face. Accordingly, it is possible to additionally detect bio-signals other than the bio-signals described above. For example, the bio-signal detection sensor 112 connected to the other detection means may additionally detect a bioelectrical impedance analysis (BIA), a galvanic skin response (GSR), and the like.

In addition, the bio-signal detection sensor 112 may be installed in a structure capable of adjusting its position within the mask body 1111.

Referring to FIG. 8, a movement control member 1125 may be installed in the mask body 1111 to guide the movement of the biosignal detection sensor 112 according to a user's manipulation. The movement control member 1125 is formed in a ring shape, and a guide hole 1125a for guiding the movement of the biosignal detection sensor 112 may be formed inside the movement control member 1125. For reference, in FIG. 8, the guide hole 1125a is illustrated in a curved arc shape along the horizontal direction, but the shape of the guide hole 1125a is not limited thereto, and a biosignal detection sensor ( 112) can be changed and applied to various shapes that can guide the movement.

In addition, the detachable functional module 100 for obtaining biometric data includes a second biometric data obtaining module 120.

14 is an exploded perspective view showing the present biometric data acquisition detachable functional module 100, and FIG. 15 is a perspective view showing a second biometric data acquisition module 120. Referring to FIG.

1, 14, and 15, the second biometric data acquisition module 120 is formed in a form capable of obtaining second biometric data by photographing a user's face accommodated in the first biometric data acquisition module 110. .

In more detail, the second biometric data acquisition module 120 photographs the user's face accommodated in the first biometric data acquisition module 110 and moves the gaze from the captured image, identification information through the iris area around the pupil, and eyes. It is possible to obtain biometric data regarding changes in facial expressions through movement of surrounding muscles, and heart rate information due to changes in blood flow in the bloodstream around the eyes.

In addition, the second biometric data acquisition module 120 may include a plurality of cover parts 121, a photographing part 122, and a light source part 123.

Each of the plurality of cover parts 121 may include a cover body 1211 and a holder 1212.

The cover body 1211 may be mounted on the head mounted display device 200 and disposed on one side of the lens 200a. In addition, at one side of the cover body 1211 may be provided with at least one detachable means 1211a detachable from the first biometric data acquisition module 110. For example, the detachment means 1211a may be formed of a magnetic material, and may be coupled to the detachment unit 115 provided in the first biometric data acquisition module 110 to be detachable through magnetic force. Further, a lens through hole 1211b may be formed inside the cover body 1211 so that one surface of the lens 200a can be exposed.

In addition, the cover body 1211 accommodates a hook-shaped coupling means on the inner side for binding with other structures, and a cable that is connected to the photographing unit 122 and the light source unit 123 to be described later and wired to the connection module 130 A possible wiring path can be formed.

The holder 1212 protrudes obliquely at a preset angle from the cover body 1211 toward the first biometric data acquisition module 110, and a predetermined accommodation space is formed inside so that the photographing unit 122 can be accommodated. I can.

In addition, the holder 1212 is formed in a detachable structure to the cover body 1211, and may be coupled to one surface of the cover body 1211 through a fastening means (not shown).

The photographing unit 122 is mounted on the holder 1212 and disposed in the accommodation space of the holder 1212, and is disposed in a state inclined by a predetermined angle with respect to the central axis of the lens 200a, and the first biometric data acquisition module At least a part of the user's face accommodated in 110 may be photographed. For example, the photographing unit 122 may include a camera body including at least one lens (not shown) therein, and an image sensor (not shown) connected to the camera body. Here, the photographing unit 122 may be applied as an infrared camera.

The light source unit 123 is installed on one surface of the holder 1212 and is disposed in a state that is inclined by a predetermined angle with respect to the central axis of the lens 200a, and may emit light toward the photographing direction of the photographing unit 122. . For example, the light source unit 123 may be applied as an infrared LED or an infrared lamp.

In addition, the second biometric data acquisition module 120 may further include an infrared ray (IR) filter (not shown) installed in the cover unit 121 and disposed in front of the photographing unit 122. For example, the IR filter may be formed of a plate-shaped structure having a predetermined thickness, and may be formed of a transparent material through which infrared rays can be transmitted.

In addition, the second biometric data acquisition module 120 is an angle adjustment means capable of adjusting the photographing direction of the photographing unit 122 and the light irradiation direction of the light source unit by rotating the holder 1212 at a preset angle through user manipulation. It may further include (not shown).

Accordingly, it is possible to check the user's cognitive and emotional state in real time by detecting the specificity of the user's EEG or gaze movement while checking the virtual reality image, as well as using the user's gaze location information and EEG information to display the head mounted display. The function of the device 200 can be controlled.

In addition, by detecting the specificity of the user's brain waves or gaze movements who are checking the virtual reality image and analyzing it to check the user's cognitive and emotional state in real time, content that meets the user's current state or user's intention is provided to the user. It can be provided in real time, and furthermore, content can be developed using information on physical changes of the user.

In addition, as it is possible to provide the user with content that matches the user's current state or the user's intention in real time, it is possible to improve the user's experience satisfaction by providing various contents to the user.

In addition, the detachable functional module 100 for obtaining biometric data includes a connection module 130.

16 is a schematic cross-sectional view illustrating a state in which the first biometric data acquisition module 110 and the connection module 130 are coupled.

14 and 16, the connection module 130 is electrically connected to the first biometric data acquisition module 110 and the second biometric data acquisition module 120, so that the first biometric data acquisition module 110 and the second 2 The first biometric data and the second biometric data acquired from the biometric data acquisition module 120 can be pre-processed and transmitted to an external device (not shown) or a head mounted display device 200, and can be transmitted to an external device or a head mounted display device ( A control command may be received from 200) and transmitted to the first biometric data acquisition module 110 and the second biometric data acquisition module 120. For example, the external device may include a processor, a memory for storing and executing program data, a storage, a communication port for communicating with an external device, a user interface device such as a touch panel, a key, and a button. .

In more detail, the connection module 130 may include a housing 131, a control plate 132, a socket unit 133, and an external input terminal 134.

The housing 131 includes at least one detachable means 131a detachable from the first biometric data acquisition module 110, and forms a storage space of a predetermined size so that the controller plate 132 to be described later can be accommodated. can do. For example, the detachment means 131a may be formed of a magnetic material, and may be coupled to the detachment unit 115 provided in the first biometric data acquisition module 110 to be detachable through magnetic force.

In addition, one surface of the housing 131 in contact with the first biometric data acquisition module 110 may be formed in a shape corresponding to the outer surface of the first biometric data acquisition module 110. For example, one surface of the housing 131 may be formed in a curved shape corresponding to an outer surface of one side of the face support mask 111 on which the user's forehead is located.

The control board 132 is installed inside the housing 131 and disposed in the accommodation space, and the first and second biometric data obtained from the first biometric data acquisition module 110 and the second biometric data acquisition module 120 After pre-processing the biometric data, it can be transmitted to an external device through wired or wireless communication. For example, the control panel 132 includes a signal detection unit (not shown) that detects signals transmitted from the first biometric data acquisition module 110 and the second biometric data acquisition module 120, amplifies a signal from the signal detection unit, and reduces noise. Filter to remove (not shown), A/D converter (not shown) to convert the filtered analog signal to digital signal, power supply unit (not shown) to provide a predetermined driving voltage, and use wired or wireless communication for the measured signal Thus, it may include a communication unit (not shown) and the like for transmitting to an external device. However, the control panel 132 is not necessarily limited thereto, and may be changed and applied in various structures and forms within a range capable of performing the same function.

The socket unit 133 is installed in the housing 131 and is connected to the control panel 132, and is electrically connected to the first biometric information acquisition module 110 and the second biometric information acquisition module 120, so that the control panel 132 ), the first biometric data and the second biometric data may be delivered.

The external input terminal 134 is installed in the housing 131 and is connected to the control panel 132 and is electrically connected to an external device to receive the first biometric data and the second biometric data from the control panel 132, or Control commands can be transmitted to the control panel 132.

That is, as the first biometric data acquisition module 110, the second biometric data acquisition module 120, and the connection module 130 are formed in the form of a module detachable to the head mounted display device 200, various types of head mounted Not only is it applicable to a display device to increase the usability of the product, but also when any one of a plurality of functional modules is damaged or deformed, only the corresponding functional module can be replaced or repaired, thereby facilitating maintenance.

In addition, the detachable function module 100 for acquiring biometric data may control a function of the head mounted display device 200 by using at least one biometric signal sensed by a user.

For example, the detachable function module 100 for acquiring biometric data detects whether the user is wearing or not, based on the user's brainwave information or the user's gaze information, and controls the power, or turns on/off the speaker or adjusts the volume, On/off or vibration intensity control, display control, and user authentication can be performed.

Hereinafter, a description will be given of the head mounted display device 200 (hereinafter referred to as “head mounted display device 200”) according to an embodiment of the present invention.

For reference, for each component for describing the head mounted display device 200, for convenience of description, the same reference numerals used in the description of the removable functional module 100 for acquiring biometric data are used, and the same or duplicate description Is omitted.

Referring to Figure 1, the head mounted display device 200 is formed in a structure that can be worn on the user's head, so that the user can experience a spatial and temporal similar to the real one, so that a virtual reality (VR) image is displayed to the user. As a display device to be provided, it includes a wearable part worn on the user's head, and a display body supported on the wearable part and having an image output means (not shown) and a plurality of lenses 200a inside. For example, the wearing unit may be formed in the form of a wearable band around the user's head, and may have an inner diameter adjusting means on one side to adjust the size of the inner diameter. In addition, the display body may be rotatably coupled to the wearing part and may be rotated at a preset angle according to a user's manipulation.

In addition, the head mounted display device 200 includes a detachable functional module 100 for acquiring biometric data.

The detachable function module 100 for obtaining biometric data photographs a user's face accommodated in the first biometric data acquisition module 110 and the first biometric data acquisition module 110 capable of obtaining first biometric data by contacting the user's skin The first biometric data and the second biometric data are electrically connected to the second biometric data acquisition module 120 and the first biometric data acquisition module 110 and the second biometric data acquisition module 120. It includes a connection module 130 capable of preprocessing biometric data and transmitting it to an external device.

Here, the first biometric data acquisition module 110 may be detachably coupled to the second biometric data acquisition module 120 and the connection module 130.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and is generally used in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Various modifications are possible by those skilled in the art of course, and these modifications should not be understood individually from the technical idea or perspective of the present invention.

100. Removable function module for biometric data acquisition
110. The first biometric data acquisition module
111. Face Support Mask
112. Bio-signal detection sensor
113. Connector
114. Combining means
115. Desorption means
120. Second Biometric Data Acquisition Module
121. Cover
1211. Cover body
1211a. Desorption means
1211b. Lens through hole
1212. Holder
122. Filming Department
123. Light source
130. Connection module
131. Housing
131a. Desorption means
132. Control panel
133. Socket
134. External input terminal
200. Head Mount Display Unit
200a. lens

Claims (4)

A bio-signal sensing unit detachably coupled to a head mounted display device configured to provide a virtual reality image to a user, and sensing at least one bio-signal by contacting the user's skin; Wow
A connector unit configured to electrically connect the biosignal detection unit and the head mounted display device; Including,
The bio-signal detection unit,
A plurality of electrodes that are in contact with the user's skin to sense the at least one bio-signal;
A flexible substrate electrically connected to the plurality of electrodes and configured to be deformed corresponding to the shape of a portion in contact with the user; Bio-signal sensing device comprising a. The method of claim 1,
The bio-signal detecting unit is detachably coupled to the head mounted display device through the connector unit. The method of claim 1,
The plurality of electrodes are arranged in a vertical direction. The method of claim 1,
The bio-signal detection unit comprises a protective sheet attached to one surface of the flexible substrate and configured to support the flexible substrate.

Images