Wearable device including structure including marker for providing spatial information of wearable device

Abstract

According to an embodiment, a wearable device may comprise: a cover glass for defining a front surface of the wearable device; and a housing assembly including a bracket at least partially covered by the cover glass. The wearable device may comprise a camera supported by the bracket and disposed toward the front surface of the wearable device so as to receive light through the cover glass. The cover glass may include at least one air gap disposed in an optical path of light transmitted to the camera so as to form a marker detectable by the camera.

Description

A wearable device comprising a structure including a marker for providing spatial information of the wearable device.

[0001] The present disclosure relates to a wearable device including a structure including a marker for providing spatial information of the wearable device.

[0002] To provide an enhanced user experience, wearable devices can provide various services. Wearable devices can be worn on a part of the user's body and operate. For example, wearable devices can be AR glasses and / or head-mounted devices (HMDs). Wearable devices can identify spatial information of the wearable device using a camera to provide various services to the user. To enhance user convenience, wearable devices can include a structure that includes markers for providing or calibrating spatial information of the wearable device.

[0003] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0004] A wearable device is disclosed. The wearable device may include a housing assembly including a cover glass defining a front surface of the wearable device, and a bracket at least partially covered by the cover glass. The wearable device may include a camera supported by the bracket and positioned toward the front surface of the wearable device to receive light through the cover glass. The cover glass may include at least one aperture positioned in an optical path of light transmitted to the camera to form a marker detectable by the camera.

[0005] A wearable device is disclosed. The wearable device may include a housing assembly comprising a cover glass defining a front surface of the wearable device and including at least one aperture. The wearable device may include a camera within the housing assembly, the camera being positioned toward the front surface of the wearable device and aligned with the at least one aperture. The wearable device may include a display within the housing assembly, at least one processor within the housing assembly, and a memory within the housing assembly comprising one or more storage media storing instructions. The instructions, when individually or collectively executed by the at least one processor, may cause the wearable device to acquire an image using the camera. The instructions, when individually or collectively executed by the at least one processor, may cause the wearable device to identify a location of a marker formed through the at least one aperture on the display using light received by the camera through the at least one aperture. The instructions, when individually or collectively executed by the at least one processor, may cause the wearable device to obtain spatial information of the wearable device using the image based on the location of the marker.

[0006] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0007] Figures 2a and 2b illustrate the appearance of an exemplary wearable device.

[0008] Figure 3 is a partially exploded perspective view of an exemplary wearable device.

[0009] Figure 4 illustrates a block diagram of an exemplary wearable device.

[0010] Figure 5a illustrates the operation of an exemplary wearable device.

[0011] Figures 5b and 5c illustrate portions of an exemplary wearable device.

[0012] Figure 6a is a partially exploded perspective view of an exemplary wearable device.

[0013] Figure 6b illustrates a portion of an exemplary wearable device.

[0014] FIG. 6c is a cross-sectional view of an exemplary wearable device taken along line A-A' of FIG. 6b.

[0015] FIGS. 7A, 7B, 7C, and 7D illustrate portions of exemplary wearable devices.

[0016] Figure 8 is a graph showing the stress applied to the cover glass according to the thickness of the cover glass of an exemplary wearable device.

[0017] Figures 9a and 9b illustrate a portion of an exemplary wearable device.

[0018] Figure 10 illustrates a manufacturing process of a cover glass of an exemplary wearable device.

[0019] Figure 11 illustrates a portion of an exemplary wearable device.

[0020] FIG. 1 is a block diagram of an electronic device within a network environment according to various embodiments.

[0021] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0022] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (121). For example, when the electronic device (101) includes the main processor (121) and the auxiliary processor (123), the auxiliary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a given function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0023] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0024] The memory (130) can store various data used by at least one component (e.g., processor (120) or sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., program (140)) and input data or output data for commands related thereto. The memory (130) can include volatile memory (132) or non-volatile memory (134).

[0025] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0026] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0027] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0028] The display module (160) can visually provide information to an external party (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0029] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0030] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0031] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0032] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0033] The haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0034] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0035] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0036] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0037] The communication module (190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (194) (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0038] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0039] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas, for example, by the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device via the at least one selected antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0040] According to various embodiments, the antenna module (197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0041] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0042] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0043] Figures 2a and 2b illustrate the appearance of an exemplary wearable device.

[0044] The wearable device (200) of FIGS. 2A and 2B may be an example of the electronic device (101) of FIG. 1. According to one embodiment, the wearable device (200) may include a housing assembly (210) defining at least a portion of an exterior of the wearable device (200), at least one lens (250), and a plurality of cameras (260). A portion of a front side (200a) and a lateral side (200c) of the wearable device (200) defined by the housing assembly (210) may be illustrated in FIG. 2A, and a rear side (200b) and a portion of the lateral side (200c) of the wearable device (200) may be illustrated in FIG. 2B. According to one embodiment, the housing assembly (210) may include a first cover plate (211) defining the front surface (200a) and a portion of the side surface (200c) of the wearable device (200), and a second cover plate (212) defining the back surface (200b) and a portion of the remaining side surface (200c).

[0045] Referring to FIG. 2a, a camera (e.g., cameras 261a, 261b, 261c, 261d, 262a, 262b)) and / or a sensor (e.g., a depth sensor (230)) may be positioned on the front surface (200a) of the wearable device (200) to obtain information related to the external environment of the wearable device (200). For example, the cameras (261a, 261b, 261c, 261d) may be positioned on the front surface (200a) to recognize external objects. The cameras (261a, 261b, 261c, 261d) may be referred to as a motion recognition camera (261).

[0046] For example, using cameras (262a, 262b), the wearable device (200) can obtain images and / or videos to be transmitted to each of the user's eyes. The camera (262a) can be positioned on the front (200a) of the wearable device (200) to obtain an image to be displayed through the second lens (252) (or the second display (352) of FIG. 3) corresponding to the right eye among the two eyes. The camera (262b) can be positioned on the front (200a) of the wearable device (200) to obtain an image to be displayed through the first lens (251) (or the first display (351) of FIG. 3) corresponding to the left eye among the two eyes. The cameras (262a, 262b) can be referred to as a shooting camera (262).

[0047] According to one embodiment, the wearable device (200) may include a depth sensor (230) positioned on the front surface (200a) to identify a distance between the wearable device (200) and an external object. Using the depth sensor (230), the wearable device (200) may obtain spatial information (e.g., a depth map) for at least a portion of the FoV of a user wearing the wearable device (200).

[0048] Referring to FIG. 2b, according to one embodiment, the back surface (200b) of the wearable device (200) may have a shape corresponding to a body part of the user (e.g., the face of the user) so as to be wearable or removable thereon. Although not shown, the wearable device (200) may further include a strap for fixing on a body part of the user, and / or one or more temples. A first lens (251) for outputting an image to the left eye among the user's two eyes, and a second lens (252) for outputting an image to the right eye among the user's two eyes may be disposed on the back surface (200b). The wearable device (200) may further include a rubber or silicone packing formed on the back surface (200b) to prevent or reduce interference by light (e.g., ambient light) different from the light radiated from the first lens (251) and the second lens (252).

[0049] According to one embodiment, the wearable device (200) may include cameras (263a, 263b) for photographing and / or tracking the user's two eyes adjacent to the first lens (251) and the second lens (252), respectively. The cameras (263a, 263b) may be referred to as gaze tracking cameras (263). According to one embodiment, the wearable device (200) may include cameras (264a, 264b) for photographing and / or recognizing the user's face. The cameras (264a, 264b) may be referred to as FT cameras (264). The wearable device (200) may control an avatar representing the user in a virtual space based on the motion of the user's face identified using the cameras (264a, 264b). For example, the wearable device (200) may change the texture and / or shape of a portion of an avatar (e.g., a portion of the avatar representing a human face) using information obtained by the FT camera (264) and representing the facial expression of a user wearing the wearable device (200).

[0050] Figure 3 is a partially exploded perspective view of an exemplary wearable device.

[0051] Referring to FIG. 3, the wearable device (200) may include a housing assembly (210), a first lens assembly (341), a second lens assembly (342), a printed circuit board (360), and a battery module (370). The housing assembly (210) may include a cover glass (310) (e.g., the first cover plate (211) of FIG. 2A), a bracket (320), and a rear cover (330) (e.g., the second cover plate (212) of FIG. 2A).

[0052] According to one embodiment, the housing assembly (210) may define at least a portion of the exterior surface and / or the exterior of the wearable device (200). For example, the wearable device (200) may include an internal space for electronic components for driving the wearable device (200) (e.g., the camera (415) of FIG. 4) and / or structures for supporting and mounting the electronic components (e.g., the bracket (320)). The space of the wearable device (200) may be surrounded by a front surface (200a), a back surface (e.g., the back surface (200b) of FIG. 2b), and a side surface (e.g., the side surface (200c) of FIG. 2a) defined by the housing assembly (210).

[0053] According to one embodiment, the cover glass (310) may define a front surface (200a) of the wearable device (200). The front surface (200a) may be a surface formed in a direction in which a camera (425) of the wearable device (200) faces so as to acquire an image through the camera (e.g., cameras (261, 262) of FIG. 2A, camera (425) of FIG. 4). For example, the cover glass (310) may be positioned in front of the wearable device (200) (e.g., in the +y direction) of the wearable device (200). For example, the cover glass (310) may be formed of a material that is transparent or configured to transmit light so that the camera (425) positioned toward the front surface (200a) acquires information about the external environment. For example, the cover glass (310) may be positioned so that at least some of the electronic components within the wearable device (200) and / or at least some of the internal structures of the wearable device (200) are visually visible through the front surface (200a) of the wearable device (200).

[0054] In one embodiment, the bracket (320) may be at least partially covered by the cover glass (310). For example, the bracket (320) may be coupled with the cover glass (310). The bracket (320) may be attached to an edge of the cover glass (310) to provide a space for electronic components (e.g., a camera (425)) between the bracket (320) and the cover glass (310). For example, the cover glass (310) may include a first bracket (321) positioned toward the cover glass (310) and a second bracket (322) coupled with the first bracket (321). The second bracket (322) may be, for example, at least partially exposed to the outside of the wearable device (200) to form a part of a side surface (200c) of the wearable device (200). For example, the first bracket (321) may define one side (320a) of the bracket (320) that is at least partially covered by the cover glass (310). A camera (425) configured to receive light through the cover glass (310) may be disposed on the side (320a). For example, the second bracket (322) may include a support portion (322a) for supporting and mounting electronic components (e.g., a printed circuit board, a processor (410) of FIG. 4) for driving the wearable device (200). While the wearable device (200) is driven, at least some of the electronic components may be configured to dissipate heat by performing calculations. The second bracket (322) may include a heat dissipation portion (322b) extending from the support portion (322a) for dissipating the heat. The heat dissipation portion (322b) of the second bracket (322) may be, for example, at least partially exposed to the outside of the wearable device (200) to dissipate heat transferred from at least some of the electronic components to the outside of the wearable device (200), but is not limited thereto.

[0055] In one embodiment, the rear cover (330) may define a rear surface (200b) of the wearable device (200) together with the first lens assembly (341) and the second lens assembly (342). For example, the rear surface (200b) of the wearable device (200) may be a surface that faces and / or comes into contact with a part of the user's body while the user wears the wearable device (200). For example, the rear cover (330) may be positioned toward the rear (e.g., in the -y direction) of the wearable device (200) with respect to the wearable device (200). For example, the wearable device (200) may be a device that can be worn on a user's head. The rear cover (330) may include a structure for accommodating or settling both eyes and / or nose of the user so that the wearable device (200) can be worn on the user's head.

[0056] For example, the rear cover (330) may include a first opening (331) for at least partially accommodating a first lens assembly (341), and a second opening (332) for at least partially accommodating a second lens assembly (342). The rear cover (330) may be configured to be coupled with the first lens assembly (341) through the first opening (331) such that the first lens assembly (341) is positioned toward the user's left eye while the user wears the wearable device (200). The rear cover (330) may be configured to be coupled with the second lens assembly (342) through the second opening (332) such that the second lens assembly (342) is positioned toward the user's right eye while the user wears the wearable device (200).

[0057] According to one embodiment, a wearable device (200) may include at least one lens (250) and at least one display (350) configured to provide visual information through the at least one lens (250). The at least one lens (250) and the at least one display (350) may be disposed on a back surface (200b) of the wearable device (200) and / or form at least a portion of the back surface (200b) to provide visual information to a user while the wearable device (200) is worn by the user.

[0058] According to one embodiment, the first lens assembly (341) may include a first lens (251), a first display (351), and a first support member (361) that couples the first lens (251) and the first display (351). The first support member (361) may be configured to be coupled to the rear cover (330) through a first opening (331) of the rear cover (330). The first display (351) may be configured to provide visual information to the user's left eye through the first lens (251) based on information acquired by a camera (425) positioned toward the front (200a) while the wearable device (200) is worn by the user. The second lens assembly (342) may include a second lens (252), a second display (352), and a second support member (362) that couples the second lens (252) and the second display (352). The second support member (362) may be configured to be coupled to the rear cover (330) through the second opening (332) of the rear cover (330). The second display (352) may be configured to provide visual information to the user's right eye through the second lens (252) based on information acquired by the camera (425) positioned toward the front (200a) while the wearable device (200) is worn by the user.

[0059] According to one embodiment, a printed circuit board (360) may be coupled to a bracket (320). Electronic components for driving a wearable device (200) may be mounted on the printed circuit board (360). For example, the printed circuit board (360) may be disposed between a first bracket (321) and a second bracket (322). A processor of the wearable device (200) (e.g., the processor (410) of FIG. 4) may be disposed on one side of the printed circuit board (360) facing the second bracket (322). For example, the printed circuit board (360) may be electrically connected to electronic components (e.g., a motion recognition camera (261) and a photographing camera (262) of FIG. 2A) disposed on the first bracket (321). However, the present invention is not limited thereto.

[0060] According to one embodiment, the battery module (370) may be mounted on the second bracket (322). The battery module (370) may be positioned toward the printed circuit board (360). For example, the battery module (370) may be positioned between the printed circuit board (360) and the second bracket (322). The battery module (370) may be configured to be electrically connected to the printed circuit board (360) to supply power to electronic components coupled on the printed circuit board (360). For example, the battery module (370) may include a first battery (371) and a second battery (372) spaced apart from the first battery (371). For example, the first battery (371) may be positioned in the wearable device (200) to overlap the first lens assembly (341). The second battery (372) may be positioned in a position overlapping the second lens assembly (342) within the wearable device (200). However, the present invention is not limited thereto, and the battery module (370) may include a plurality of batteries for supplying power to the electronic device (200).

[0061] Figure 4 illustrates a block diagram of an exemplary wearable device.

[0062] Referring to FIG. 4, a wearable device (200) according to one embodiment may include at least one of a processor (410), a memory (415), a display (420), a camera (425), a sensor (430), or a communication circuit (435). The processor (410), the memory (415), the display (420), the camera (425), the sensor (430), and the communication circuit (435) may be electrically and / or operably coupled with each other by an electronic component such as a communication bus (402). The type and / or number of hardware components included in the wearable device (200) is not limited to those illustrated in FIG. 4. For example, the wearable device (200) may include only some of the hardware components illustrated in FIG. 4. The elements within the memory described below (e.g., layers and / or modules) may be logically distinct, but are not limited thereto.

[0063] According to one embodiment, the processor (410) of the wearable device (200) may include a hardware component for processing data based on one or more instructions. The hardware component for processing data may include, for example, an arithmetic and logic unit (ALU), a field programmable gate array (FPGA), and / or a central processing unit (CPU). The number of processors (410) may be one or more. For example, the processor (410) may have a multi-core processor structure such as a dual core, a quad core, or a hexa core.

[0064] The memory (415) of the wearable device (200) according to one embodiment may include a hardware component for storing data and / or instructions input and / or output to the processor (410). The memory (415) may include, for example, a volatile memory such as a random-access memory (RAM) and / or a non-volatile memory such as a read-only memory (ROM). The volatile memory may include, for example, at least one of a dynamic RAM (DRAM), a static RAM (SRAM), a cache RAM, and a pseudo SRAM (PSRAM). The non-volatile memory may include, for example, at least one of a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), a flash memory, a hard disk, a compact disc, and an embedded multi media card (eMMC).

[0065] In one embodiment, the display (420) of the wearable device (200) can output visualized information to a user of the wearable device (200). For example, the display (420) can be controlled by a processor (410) including a circuit such as a graphic processing unit (GPU) to output visualized information to the user. The display (420) can include a flat panel display (FPD) and / or electronic paper. The FPD can include a liquid crystal display (LCD), a plasma display panel (PDP), and / or one or more light emitting diodes (LEDs). The LEDs can include organic LEDs (OLEDs).

[0066] In one embodiment, the camera (425) of the wearable device (200) may include one or more optical sensors (e.g., a charged coupled device (CCD) sensor, a complementary metal oxide semiconductor (CMOS) sensor) that generate electrical signals representing the color and / or brightness of light. The plurality of optical sensors included in the camera (425) may be arranged in the form of a two-dimensional array. The camera (425) may acquire electrical signals of each of the plurality of optical sensors substantially simultaneously to generate two-dimensional frame data corresponding to light reaching the optical sensors of the two-dimensional array. For example, photographic data captured using the camera (425) may mean one (a) two-dimensional frame data acquired from the camera (425). For example, video data captured using the camera (425) may mean a sequence of a plurality of two-dimensional frame data acquired from the camera (425) according to a frame rate. The camera (425) may further include a flash light that is positioned toward the direction in which the camera (425) receives light and outputs light toward the direction.

[0067] According to one embodiment, the wearable device (200) may include a plurality of cameras, for example, cameras (425), arranged in different directions. A first camera among the plurality of cameras may be referred to as a motion recognition camera (e.g., motion recognition camera (261) of FIG. 2A), and a second camera may be referred to as a gaze tracking camera (e.g., gaze tracking camera (263) of FIG. 2A). The wearable device (200) may identify a position, shape, and / or gesture of a hand using an image acquired using the first camera. The wearable device (200) may identify a direction of a gaze of a user wearing the wearable device (200) using an image acquired using the second camera. For example, the direction in which the first camera faces may be opposite to the direction in which the second camera faces.

[0068] According to one embodiment, a sensor (430) of a wearable device (200) may generate electrical information that may be processed by a processor (410) and / or a memory (415) of the wearable device (200) from non-electronic information related to the wearable device (200). The information may be referred to as sensor data. The sensor (430) may include a global positioning system (GPS) sensor, an image sensor, an ambient light sensor, and / or a time-of-flight (ToF) sensor for detecting a geographic location of the wearable device (200), and an inertial measurement unit (IMU) for detecting a physical motion of the wearable device (200).

[0069] In one embodiment, the communication circuit (435) of the wearable device (200) may include hardware components for supporting transmission and / or reception of electrical signals between the wearable device (200) and an external electronic device. The communication circuit (435) may include, for example, at least one of a modem (MODEM), an antenna, and an optical / electronic (O / E) converter. The communication circuit (435) may support transmission and / or reception of electrical signals based on various types of protocols, such as Ethernet, a local area network (LAN), a wide area network (WAN), wireless fidelity (WiFi), Bluetooth, Bluetooth low energy (BLE), ZigBee, long term evolution (LTE), 5G NR (new radio), and / or 6G.

[0070] According to one embodiment, one or more instructions (or commands) representing operations and / or actions to be performed on data by the processor (410) of the wearable device (200) may be stored in the memory (415) of the wearable device (200). A set of one or more instructions may be referred to as firmware, an operating system, a process, a routine, a sub-routine, and / or an application. For example, the wearable device (200) and / or the processor (410) may perform at least one of the operations according to the embodiments described below when a set of a plurality of instructions distributed in the form of an operating system, firmware, a driver, and / or an application is executed. Hereinafter, the fact that an application is installed in a wearable device (200) may mean that one or more instructions provided in the form of an application are stored in a memory (415), and that the one or more applications are stored in a format executable by the processor (410) (e.g., a file having an extension specified by the operating system of the wearable device (200)). As an example, an application may include a program and / or a library related to a service provided to a user.

[0071] Referring to FIG. 4, programs installed in the wearable device (200) may be classified into one of different layers, including an application layer (440), a framework layer (450), and / or a hardware abstraction layer (HAL) (480), based on the target. For example, programs (e.g., modules or drivers) designed to target the hardware of the wearable device (200) (e.g., the display (420), the camera (425), and / or the sensor (430)) may be classified within the hardware abstraction layer (480). The framework layer (450) may be referred to as an XR framework layer in that it includes one or more programs for providing an XR (extended reality) service. For example, FIG. 4 illustrates layers being divided within the memory (415), the layers may be logically divided. However, the present invention is not limited thereto. Depending on the embodiment, the layers may be stored in a designated area within the memory (415).

[0072] For example, within the framework layer (450), programs designed to target at least one of the hardware abstraction layer (480) and / or the application layer (440) (e.g., a position tracker (471), a space recognizer (472), a gesture tracker (473), and / or an eye tracker (474), a face tracker (475)) may be classified. Programs classified within the framework layer (450) may provide an executable API (application programming interface) based on other programs.

[0073] For example, within the application layer (440), programs designed to target users controlling wearable devices (200) may be classified. Examples of programs classified into the application layer (440) include, but are not limited to, an XR (extended reality) system UI (user interface) and / or an XR application (442). For example, programs (e.g., software applications) classified into the application layer (440) may call an API (application programming interface) to cause execution of functions supported by programs classified into the framework layer (450).

[0074] For example, the wearable device (200) may display one or more visual objects on the display (420) for performing interaction with a user for using a virtual space based on the execution of the XR system UI (441). A visual object may refer to an object that can be deployed within a screen for transmitting and / or interacting with information, such as text, an image, an icon, a video, a button, a checkbox, a radio button, a text box, a slider, and / or a table. A visual object may be referred to as a visual guide, a virtual object, a visual element, a UI element, a view object, and / or a view element. The wearable device (200) may provide a service for controlling functions available within a virtual space to the user based on the execution of the XR system UI (441).

[0075] Referring to FIG. 4, a lightweight renderer (443) and / or an XR plug-in (444) are illustrated as being included within the XR system UI (441), but are not limited thereto. For example, the XR system UI (441) may cause execution of functions supported by the lightweight renderer (443) and / or the XR plug-in (444) included within the framework layer (450).

[0076] For example, the wearable device (200) may obtain resources (e.g., APIs, system processes, and / or libraries) used to define, create, and / or execute a rendering pipeline that allows partial changes based on the execution of a lightweight renderer (443). The lightweight renderer (443) may be referred to as a lightweight render pipeline in terms of defining a rendering pipeline that allows partial changes. The lightweight renderer (443) may include a renderer built prior to the execution of a software application (e.g., a prebuilt renderer). For example, the wearable device (200) may obtain resources (e.g., APIs, system processes, and / or libraries) used to define, create, and / or execute an entire rendering pipeline based on the execution of an XR plug-in (444). The XR plugin (444) may be referred to as an open XR native client from the perspective of defining (or configuring) the entire rendering pipeline.

[0077] For example, the wearable device (200) may display a screen representing at least a portion of a virtual space on the display (420) based on the execution of the XR application (442). The XR plug-in (444-1) included in the XR application (442) may be referenced by the XR plug-in (444) of the XR system UI (441). Descriptions of the XR plug-in (444-1) that overlap with the description of the XR plug-in (444) may be omitted. The wearable device (200) may cause the execution of the virtual space manager (451) based on the execution of the XR application (442).

[0078] According to one embodiment, the wearable device (200) may provide a virtual space service based on the execution of the virtual space manager (451). For example, the virtual space manager (451) may include a platform (e.g., an Android platform) for supporting the virtual space service. The wearable device (200) may display the posture of a virtual object representing the user's posture rendered using data acquired through the sensor (430) based on the execution of the virtual space manager (451) on the display. The virtual space manager (451) may be referred to as a composition presentation manager (CPM).

[0079] For example, the virtual space manager (451) may include a runtime service (452). As an example, the runtime service (452) may be referred to as an OpenXR runtime module. The wearable device (200) may be used to provide at least one of a pose prediction function, a frame timing function, and / or a spatial input function to a user through the wearable device (200) based on the execution of the runtime service (452). As an example, the wearable device (200) may be used to perform rendering for a virtual space service to a user based on the execution of the runtime service (452). For example, an application (e.g., unity or an OpenXR native application) may be implemented based on the execution of the runtime service (452).

[0080] For example, the virtual space manager (451) may include a pass-through manager (453). Based on the execution of the pass-through manager (453), the wearable device (200) may display a screen representing a virtual space on the display (420), while another screen representing an actual space acquired through the camera (425) may be superimposed on at least a portion of the screen.

[0081] For example, the virtual space manager (451) may include an input manager (454). Based on the execution of the input manager (454), the wearable device (200) may identify data (e.g., sensor data) acquired by executing one or more programs included in the recognition service layer (470). The wearable device (200) may initiate execution of at least one of the functions of the wearable device (200) using the acquired data.

[0082] For example, the perception abstract layer (460) can be used for data exchange between the virtual space manager (451) and the perception service layer (470). From the perspective of being used for data exchange between the virtual space manager (451) and the perception service layer (470), the perception abstract layer (460) can be referred to as an interface. For example, the perception abstract layer (460) can be referenced as OpenPX. The perception abstract layer (460) can be used for a perception client and a perception service.

[0083] According to one embodiment, the recognition service layer (470) may include one or more programs for processing data acquired from a sensor (430) (or a camera (425)). The one or more programs may include at least one of a position tracker (471), a space recognizer (472), a gesture tracker (473), an eye tracker (474), and / or a face tracker (475). The type and / or number of the one or more programs included in the recognition service layer (470) are not limited to those illustrated in FIG. 4.

[0084] For example, the wearable device (200) can identify the pose of the wearable device (200) using the sensor (430) based on the execution of the position tracker (471). The wearable device (200) can identify the 6 degrees of freedom pose (6 dof pose) of the wearable device (200) using data acquired using the camera (425) and the IMU based on the execution of the position tracker (471). The position tracker (471) can be referred to as a head tracking (HeT) module.

[0085] For example, the wearable device (200) may be used to construct a three-dimensional virtual space around the wearable device (200) (or a user of the wearable device (200)) based on the execution of the space recognizer (472). The wearable device (200) may reconstruct the three-dimensional surroundings of the wearable device (200) using data acquired using the camera (425) based on the execution of the space recognizer (472). The wearable device (200) may identify at least one of a plane, a slope, and stairs based on the three-dimensionally reconstructed surroundings of the wearable device (200) based on the execution of the space recognizer (472). The space recognizer (472) may be referred to as a scene understanding (SU) module.

[0086] For example, the wearable device (200) may be used to identify (or recognize) a pose and / or gesture of a hand of a user of the wearable device (200) based on the execution of the gesture tracker (473). As an example, the wearable device (200) may identify a pose and / or gesture of a hand of a user using data acquired from a sensor (430) based on the execution of the gesture tracker (473). As an example, the wearable device (200) may identify a pose and / or gesture of a hand of a user based on data (or images) acquired using a camera based on the execution of the gesture tracker (473). The gesture tracker (473) may be referred to as a hand tracking (HaT) module and / or a gesture tracking module.

[0087] For example, the wearable device (200) may identify (or track) eye movements of a user of the wearable device (200) based on the execution of the gaze tracker (474). As an example, the wearable device (200) may identify eye movements of the user using data acquired from at least one sensor based on the execution of the gaze tracker (474). As an example, the wearable device (200) may identify eye movements of the user based on data acquired using a camera (e.g., the gaze tracking camera (263) of FIGS. 2A and 2B) and / or an infrared light emitting diode (IR LED) based on the execution of the gaze tracker (474). The gaze tracker (474) may be referred to as an eye tracking (ET) module and / or a gaze tracking module.

[0088] For example, the recognition service layer (470) of the wearable device (200) may further include a face tracker (475) for tracking the user's face. For example, the wearable device (200) may identify (or track) the movement of the user's face and / or the user's expression based on the execution of the face tracker (475). The wearable device (200) may estimate the user's expression based on the movement of the user's face based on the execution of the face tracker (475). As an example, the wearable device (200) may identify the movement of the user's face and / or the user's expression based on data (e.g., an image) acquired using a camera based on the execution of the face tracker (475).

[0089] For the embodiments described below, the wearable device (200) of FIG. 4 may be referred to. For example, the operations of the wearable device (200) described in the embodiments below may be performed by the processor (410) of the wearable device (200) of FIG. 4.

[0090] Figure 5a illustrates the operation of an exemplary wearable device. Figures 5b and 5c illustrate portions of the exemplary wearable device.

[0091] Referring to FIG. 5a, an exemplary screen (501) provided to a user (50) wearing the wearable device (200) through a display of the exemplary wearable device (200) (e.g., at least one display (350) of FIG. 3, display (420) of FIG. 4) is illustrated. Referring to FIGS. 5b and 5c, the wearable device (200) may include a housing assembly (e.g., the housing assembly (210) of FIG. 2a) including a cover glass (310) and a bracket (e.g., the bracket (320) of FIG. 3), and a camera (425). The cover glass (310) may define a front surface (200a) of the wearable device (200). The bracket (320) may be at least partially covered by the cover glass (310). According to one embodiment, the wearable device (200) may be referred to as a head mounted display device (HMD) that can be worn on the head (51) of a user (50), and a detachable head strap (205) may be provided on the wearable device (200) to be worn on the head (51) of the user (50), but the embodiment is not limited thereto.

[0092] In one embodiment, the camera (425) may be supported by the bracket (320) of the housing assembly (210). The camera (425) may be positioned toward the front (200a) of the wearable device (200) to receive light through the cover glass (310) of the housing assembly (210). For example, the camera (425) may be positioned between the cover glass (310) of the housing assembly (210) and the bracket (320). The camera (425) may be positioned toward the cover glass (310) by being coupled to the bracket (320). For example, the camera (425) may face the cover glass (310) and be spaced apart from the cover glass (310). For example, the camera (425) may be configured to obtain information about the front (e.g., +y direction) environment of the wearable device (200) using light received by the camera (425) through the cover glass (310). The display (420) may be configured to provide visual information and / or graphical output to a user (50) wearing the wearable device (200) based on the information obtained by the camera (425). The camera (425) may include, for example, one or more image sensors configured to detect the external environment of the wearable device (200) through the cover glass (310). The cover glass (310) may be referred to as an optical window of the camera (425) arranged toward the front (200a) of the wearable device (200), but the embodiment is not limited thereto.

[0093] According to one embodiment, the cover glass (310) may include an outer surface (315) defining a first surface (315a) corresponding to the front surface (200a) of the wearable device (200), and a second surface (315b) opposite to the first surface (315a). The outer surface (315) may form an outer appearance of the cover glass (310). The first surface (315a) may be a surface that is exposed to the outside of the wearable device (200) and forms a part of the outer appearance of the wearable device (200). The second surface (315b) may be a surface formed toward the inside of the wearable device (200). The second surface (315b) may be, for example, a surface facing the bracket (320) and / or the camera (425) on the bracket (320).

[0094] According to one embodiment, a marker (500) may be formed on a portion of the cover glass (310) facing the camera (425). The marker (500) may be configured to be detectable by the camera (425) by being formed on the camera (425). For example, the marker (500) may be positioned on an optical path of light received by the camera (425) through the cover glass (310) from the outside of the wearable device (200). For example, the marker (500) may be formed to overlap the camera (425) (or the lens of the camera) when viewed from above the front (200a) of the wearable device (200).

[0095] For example, the marker (500) may be formed through a coating layer (510) attached to the cover glass (310) as shown in FIG. 5B. The coating layer (510) may include a substantially opaque material. For example, the coating layer (510) may be attached on the second surface (315b) formed toward the inside of the wearable device (200) among the first surface (315a) and the second surface (315b) of the cover glass (310) so that the coating layer (510) is not visible from the outside of the wearable device (200). The processor (410) of the wearable device (200) may be configured to obtain spatial information of the marker (500) through the coating layer (510) placed on the optical path of light received by the camera (425) through the cover glass (310) from the outside of the wearable device (200).

[0096] For example, the marker (500) may be formed through a recess (520) formed in the cover glass (310) as shown in FIG. 5C. The recess (520) may be formed on a second surface (315b) formed toward the inside of the wearable device (200) among the first surface (315a) and the second surface (315b) of the cover glass (310) so that the recess (520) is not visible from the outside of the wearable device (200). The recess (520) may be recessed from the second surface (315b) toward the first surface (315a), for example. The processor (410) of the wearable device (200) may be configured to obtain spatial information of the marker (500) through the recess (520) positioned on the optical path of light received by the camera (425) through the cover glass (310) from the outside of the wearable device (200). However, the above-described embodiments are exemplary and are not limited thereto, and the wearable device (200) may include various types of markers (500) formed on the outer surface (315) of the cover glass (310) and detectable by the camera (425).

[0097] According to one embodiment, a processor of a wearable device (200) (e.g., processor (410) of FIG. 4) may be configured to acquire an image using a camera (425). The processor (410) may be configured to identify a location of a marker (500) on a display (420) using light received by the camera (425) through a marker (500). The processor (410) may be configured to acquire spatial information of the wearable device (200) using the image acquired by the camera (425) based on the location of the marker (500) on the display (420).

[0098] For example, the processor (410) may be configured to acquire an image related to the front environment of the wearable device (200) based on information about the front environment acquired through the camera (425). The processor (410) may control the display (420) to display a screen (501) including a plurality of visual objects related to the front environment based on the acquired image. For example, the processor (410) may be configured to identify, through the camera (425), a marker (500) positioned on an optical path of light received by the camera (425) through the front (200a) of the wearable device (200) defined by the cover glass (310). The processor (410) may obtain an image related to the front environment of the wearable device (200) through the camera (425) and spatial information about the marker (500) on the display (420) for the image. The processor (410) may be configured to obtain spatial information of the wearable device (200) using the image based on the spatial information of the marker (500). For example, the processor (410) may be configured to perform calibration of spatial information of the wearable device (200) worn by the user (50) and / or gaze information related to gaze tracking of the user based on the spatial information of the marker (500) obtained through the camera (425). The marker (500) may include, for example, markers (500a, 500b) that serve as reference points for tracking the spatial information of the wearable device (200) and / or the gaze of the user (50). The marker (500) may be referred to as a fiducial marker in terms of providing the spatial information of the wearable device (200) and / or the fiducial point for tracking the gaze of the user (50), but is not limited thereto.

[0099] According to one embodiment, since the marker (500) is formed on the outer surface (315) of the cover glass (310), the shape of the marker (500) may be irregularly formed depending on the shape of the cover glass (310), or the marker (500) may cause damage to the cover glass (310). For example, as illustrated in FIG. 5b, when a coating layer (510) is deposited on the cover glass (310), the shape of the marker (500) formed by the coating layer (510) may be irregularly formed depending on the curvature of the cover glass (310). For example, as illustrated in FIG. 5c, when a recess (520) is formed in the cover glass (310), a crack may occur in the cover glass (310) based on the recess (520) due to an external impact applied to the cover glass (310). The wearable device (200) may require a structure that provides uniformity in the appearance of the marker (500) and reduces damage to the cover glass (310) caused by the marker (500). A structure that provides uniformity in the appearance of the marker (500) and reduces damage to the cover glass (310) caused by the marker (500) is described and illustrated in FIGS. 6A to 6C.

[0100] Fig. 6a is a partially exploded perspective view of an exemplary wearable device. Fig. 6b illustrates a portion of the exemplary wearable device. Fig. 6c is a cross-sectional view of the exemplary wearable device taken along line A-A' of Fig. 6b.

[0101] Referring to FIGS. 6A, 6B, and 6C, a wearable device (200) may include a housing assembly (210) including a cover glass (310) defining a front surface (200a) of the wearable device (200) and a bracket (320) at least partially covered by the cover glass (310). The wearable device (200) may include a camera (425) supported by the bracket (320) and positioned toward the front surface (200a) of the wearable device (200) to receive light through the cover glass (310). According to one embodiment, the cover glass (310) may include an outer surface (315) defining a first surface (315a) corresponding to the front surface (200a) of the wearable device (200), a second surface (315b) opposite the first surface (315a), and a third surface (315c) extending from the first surface (315a) to the second surface (315b).

[0102] According to one embodiment, the cover glass (310) may include at least one aperture (610) positioned in the optical path of light transmitted to the camera (425) to form a marker (500) detectable by the camera (425).

[0103] For example, at least one void (610) may be positioned between the first side (315a) and the second side (315b) so as to be formed inside the cover glass (310). The at least one void (610) may overlap the camera (425) when looking at the front side (200a) of the wearable device (200) from above. For example, the at least one void (610) may be surrounded by the outer surface (315) of the cover glass (310). For example, the at least one void (610) may be referred to as, but is not limited to, at least one pore within the cover glass (310) that is formed in the cover glass (310) and positioned over the camera (425). For example, since at least one void (610) is formed inside the cover glass (310), the cover glass (310) can have a continuous outer surface (315). By having the continuous outer surface (315), the cover glass (310) can improve the aesthetics of the cover glass (310) and reduce damage to the cover glass (310) due to external impact. The location inside the cover glass (310) where the at least one void (610) is formed to reduce damage to the cover glass (310) due to the external impact will be described below with reference to FIGS. 7A to 7D.

[0104] For example, at least one gap (610) can be arranged to be aligned with the camera (425) so as to be positioned on the path of light received by the camera (425) through the cover glass (310). For example, the camera (425) can be fixed on the bracket (320) so as to be aligned with at least one gap (610) of the cover glass (310). The at least one gap (610), for example, can be configured to refract or reflect at least a portion of light transmitted toward the camera (425) through the cover glass (310) by being arranged on the path of light received by the camera (425) through the cover glass (310). For example, at least one void (610) may be formed within the cover glass (310) to define a space formed within the cover glass (310) on the camera (425). For example, at least one void (610) may include an empty space. For example, at least one void (610) may be positioned toward the camera (425) to form a marker (500) detectable by the camera (425).

[0105] According to one embodiment, the wearable device (200) may include a plurality of cameras (260) supported by a bracket (320) and positioned toward the front (200a) of the wearable device (200). The plurality of cameras (260) may be referred to as front cameras, for example, but are not limited thereto, from the side facing the front (200a) of the wearable device (200). For example, the plurality of cameras (260) may include cameras (261a, 261b, 261c, 261d) that may be referred to as motion recognition cameras (261) and cameras (262a, 262b) that may be referred to as photographing cameras (262). The cameras (261a, 261b, 261c, 261d, 262a, 262b) may be mounted on one side (320a) of the bracket (320) facing the cover glass (310) (or the front side (200a) of the wearable device (200)), respectively. For example, at least one air gap (610) may be formed inside the cover glass (310) so as to be positioned above the cameras (261a, 261b, 261c, 261d, 262a, 262b), respectively. The at least one gap (610) may include, for example, a plurality of gaps forming markers each positioned on a path of light received from the outside of the wearable device (200) by each of the cameras (261a, 261b, 261c, 261d, 262a, 262b). However, the above-described embodiment is illustrative and is not limited thereto.

[0106] In one embodiment, the bracket (320) may include a support portion (620) that is positioned below the cover glass (310) and coupled with the camera (425) to fix the camera (425) toward at least one gap (610). For example, the support portion (620) may be positioned toward at least one gap (610). For example, the bracket (320) may include a first bracket (321) and a second bracket (322) coupled with the first bracket (321). The support portion (620) may include a fastening hole (621) formed by the first bracket (321) and the second bracket (322) and coupled with the camera (425) to fix the camera (425) toward at least one gap (610). The above fastening hole (621) can be penetrated by the camera (425). For example, the wearable device (200) can include a printed circuit board (630) disposed under the bracket (320). The camera (425) can include a first region (425a) for receiving light from the outside of the wearable device (200) (e.g., a region including a lens of the camera (425)), and a second region (425b) for electrical connection with the printed circuit board (630) (e.g., a region including a sensor of the camera (425)). The first region (425a) can face at least one cavity (610) of the cover glass (310) through the fastening hole (621) of the support portion (620). The second region (425b) can be coupled to the printed circuit board (630) through the fastening hole (621). However, the above-described embodiment is exemplary and is not limited thereto.

[0107] According to one embodiment, a processor (e.g., processor (410) of FIG. 4) of a wearable device (200) may be configured to acquire an image using a camera (425). The processor (410) may be configured to identify a position of a marker (500) formed by the at least one gap (610) on a display (e.g., at least one display (350) of FIG. 3, display (420) of FIG. 4) using light received by the camera (425) through at least one gap (610). The processor (410) may be configured to acquire spatial information of the wearable device (200) using the image based on the position of the identified marker (500).

[0108] For example, at least one void (610) may include a plurality of voids (611, 612, 613, 614, 615) having and / or forming a pattern. The marker (500) may have a shape corresponding to the pattern formed by the plurality of voids (611, 612, 613, 614, 615). The processor (410) of the wearable device (200) may identify the marker (500) having the pattern through the camera (425). Based on the identification of the marker (500) having the pattern, the processor (410) may obtain spatial information of the wearable device (200) using an image obtained through the camera (425).

[0109] For example, at least one void (610) may have a shape including a plurality of concentric circles (610a, 610b, 610c, 610d) when the front surface (200a) of the wearable device (200) is viewed from above. For example, at least one void (610) may be formed through a laser irradiation process (e.g., process (1000b) of FIG. 10). Each of the plurality of concentric circles (610a, 610b, 610c, 610d) may be formed by adjusting the intensity of the laser at a specified time interval. However, the above-described embodiment is exemplary and is not limited thereto. For example, although not illustrated, at least one void (610) may have a one-dimensional point shape when the front surface (200a) of the wearable device (200) is viewed from above. For example, although not shown, at least one void (610) may have a two-dimensional linear shape, a polygonal shape, and / or a circle shape when viewed from above from the front (200a) of the wearable device (200). For example, at least one void (610) may include various shapes such as a three-dimensional spherical shape, an ellipsoid shape, a cylinder shape, a cube shape, and / or a polyhedron shape.

[0110] According to the above-described embodiment, the cover glass (310) of the wearable device (200) may be configured to include at least one void (610) forming a marker (500) detectable by the camera (425) of the wearable device (200), thereby allowing the wearable device (200) (or the processor (410)) to obtain spatial information of the wearable device (200) and / or guide the location of the wearable device (200) through the camera (425). The at least one void (610) may be formed on the inside of the cover glass (310), thereby providing a continuous outer surface (315) to the cover glass (310) and reducing the cover glass (310) from being damaged by external impact.

[0111] FIGS. 7A, 7B, 7C, and 7D illustrate portions of exemplary wearable devices.

[0112] Referring to FIGS. 7a, 7b, 7c, and 7d, a wearable device (200) may include a housing assembly (210) including a cover glass (310) defining a front surface (200a) of the wearable device (200), and a bracket (320) at least partially covered by the cover glass (310). The wearable device (200) may include a camera (425) supported by the bracket (320) and positioned toward the front surface (200a) of the wearable device (200) to receive light through the cover glass (310). The cover glass (310) may include at least one gap (610) positioned in an optical path of light transmitted to the camera (425) to form a marker (500) detectable by the camera (425). According to one embodiment, the cover glass (310) may include an outer surface (315) defining a first side (315a) corresponding to the front side (200a) of the wearable device (200) and a second side (315b) opposite the first side (315a). According to one embodiment, the at least one void (610) may include voids (611, 612, 613) each having a pattern for forming the marker (500).

[0113] Hereinafter, redundant descriptions of configurations having the same reference numerals as those described in FIGS. 6a, 6b, and 6c are omitted.

[0114] According to one embodiment, the cover glass (310) may include a first portion (311) defining a continuous outer surface (315) and to which a compressive stress is applied, and a second portion (312) surrounded by the first portion (311) and to which a tensile stress is applied. For example, the first portion (311) may form the outer appearance of the cover glass (310). The first portion (311) may be a portion to which a compressive stress is applied between molecules constituting a material forming the cover glass (310). By applying a compressive stress to the first portion (311), the cover glass (310) may reduce damage to the outer surface (315) defined by the first portion (311) when an external impact is applied to the cover glass (310). For example, the second portion (312) may be connected to the first portion (311) of the cover glass (310). The second portion (312) may be covered by the first portion (311). For example, the second portion (312) may be a portion where tensile stress is applied between molecules constituting the material forming the cover glass (310). The second portion (312) may be configured so that at least one void (610) is easily formed within the second portion (312) by applying tensile stress.

[0115] Referring to 7a, at least one void (610) may be located within the second portion (312) among the first portion (311) and the second portion (312). For example, the at least one void (610) may be located within the second portion (312) and thus may be surrounded by the first portion (311). For example, the at least one void (610) may be positioned between a portion of the first portion (311) that forms the first side (315a) of the cover glass (310) and a portion that forms the second side (315b) opposite to the first side (315a). The at least one void (610) is formed within the second portion (312) surrounded by the first portion (311) to which compressive stress is applied, thereby reducing the breakage of the cover glass (310) from the at least one void (610) due to external impact.

[0116] For example, at least one void (610) may include voids (611, 612, 613) arranged along an imaginary plane (700) between a first surface (315a) and a second surface (315b) of the cover glass (310). A distance (d1) between the first surface (315a) and the imaginary plane (700) may correspond to a distance (d2) between the second surface (315b) and the imaginary plane (700). For example, the imaginary plane (700) may be a plane penetrating the at least one void (610). The at least one void (610) may be formed on the imaginary plane (700). For example, at least one void (610) may be formed in the center portion of the cover glass (310) by being aligned along the virtual plane (700). For example, at least one void (610) may be positioned at a midpoint between the first side (315a) and the second side (315b) by being arranged along the virtual plane (700). The at least one void (610) may be formed to be positioned at a midpoint between the first side (315a) and the second side (315b), thereby reducing the cover glass (310) from being damaged by an external impact from the at least one void (610). However, the present invention is not limited thereto.

[0117] Although not shown, the distances between the first surface (315a) of the cover glass (310) and at least some of the gaps (611, 612, 613) may be different from each other. For example, the gap (611) may be formed such that the distance from the first surface (315a) to the gap (611) (e.g., the first gap) is the same as the distance from the second surface (315b) opposite to the first surface (315a) to the gap (611). The gap (612) (e.g., the second gap) different from the gap (611) may be formed such that the distance from the first surface (315a) to the other gap (612) is different from the distance from the second surface (315b) opposite to the first surface (315a) to the other gap (612). However, the embodiment is not limited thereto, and at least one void (610) may include a plurality of voids each having a different distance from the outer surface (315) of the cover glass (310).

[0118] Referring to FIGS. 7b and 7c, at least one void (610) may be at least partially positioned within the first portion (311) of the first portion (311) and the second portion (312). The housing assembly (210) may include at least one anti-slip layer (710) attached to the first portion (311).

[0119] For example, referring to FIG. 7b, at least one void (610) may be formed adjacent to the first side (315a) of the cover glass (310) among the first side (315a) and the second side (315b). The housing assembly (210) may include a first anti-shatter layer (711) attached on the first side (315a) so as to be visible from the outside of the wearable device (200). For example, at least one void (610) may be formed within the cover glass (310) so as to be adjacent to the first side (315a) opposite the second side (315b) rather than the second side (315b). The at least one void (610) may be formed at least partially within a portion of the first portion (311) to which compressive stress is applied, which forms the first side (315a). The first anti-shatter layer (711) can be positioned so as to be visible from the outside of the wearable device (200) by being attached on the first surface (315a) corresponding to the front surface (200a) of the wearable device (200). The anti-shatter layer (711) can be positioned so as to be visible from the outside of the wearable device (200) by being attached on the first surface (315a) adjacent to the at least one gap (610), thereby reducing the breakage of the cover glass (310) from the at least one gap (610) due to an external impact.

[0120] For example, referring to FIG. 7c, at least one void (610) may be formed adjacent to the second side (315b) of the first side (315a) and the second side (315b) of the cover glass (310). The housing assembly (210) may include a second anti-shatter layer (712) attached on the second side (315b) so as to be positioned toward the camera (425). For example, at least one void (610) may be formed within the cover glass (310) adjacent to the second side (315b) opposite the first side (315a) rather than the first side (315a). The at least one void (610) may be formed at least partially within a portion of the first portion (311) to which compressive stress is applied, which forms the second side (315b). The second anti-shatter layer (712) is attached to the second surface (315b) that is positioned toward the camera (425) of the wearable device (200), so that it can at least partially face the camera (425). The anti-shatter layer (711) is attached to the second surface (315b) that is positioned adjacent to the at least one gap (610), so that the cover glass (310) and / or the camera (425) can be reduced from being damaged by an external impact from the at least one gap (610).

[0121] Referring to FIG. 7d, at least one of the first side (315a) and the second side (315b) of the cover glass (310) may have a curvature so as to be bent. For example, a portion of the cover glass (310) where at least one void (610) is formed may be at least partially bent. The at least one void (610) may be positioned within a portion of the cover glass (310) having a curvature. For example, the at least one void (610) may be formed within a second portion (312) that is surrounded by a first portion (311) that defines the bent first side (315a) and the second side (315b) and to which a compressive stress is applied. The second portion (312) may be at least partially bent. However, the embodiment is not limited thereto, and for example, as shown in FIGS. 6b and 6c, at least one anti-scattering layer (710) may be attached to at least one of the first side (315a) and the second side (315b) having a curvature to reduce breakage of the cover glass (310) due to external impact.

[0122] According to the above-described embodiment, the cover glass (310) of the wearable device (200) can reduce damage to the cover glass (310) due to external impact by including a first portion (311) defining an outer surface (315) of the cover glass (310) and to which compressive stress is applied. The cover glass (310) is configured such that at least one void (610) is formed within a second portion (312) surrounded by the first portion (311) and to which tensile stress is applied, thereby reducing damage to the cover glass (310) from the at least one void (610) due to external impact. The housing assembly (210) of the wearable device (200) including the cover glass (310) can reduce the damage of the cover glass (310) due to external impact by including at least one anti-shatter layer (710) attached to the first part (311).

[0123] Figure 8 is a graph showing the stress applied to the cover glass according to the thickness of the cover glass of an exemplary wearable device.

[0124] The horizontal axis of the graph (800) of FIG. 8 represents a stress applied to a cover glass (e.g., a cover glass (310) of FIG. 3) of a wearable device (e.g., a wearable device (200) of FIG. 2a). The vertical axis of the graph (800) represents a thickness of the cover glass (310) from a second side (e.g., a second side (315b) of FIG. 5b) of the cover glass (310) toward a first side (e.g., a first side (315a) of FIG. 5b) opposite the second side (315b).

[0125] Within the region (800a) and the region (800b) of the graph (800), a compressive stress may be applied by a first portion (e.g., a first portion (311) of FIG. 7a) defining an outer surface (e.g., an outer surface (315) of FIG. 5b) of the cover glass (310). For example, the cover glass (310) may have a stress (s1) which is a compressive stress at a first surface (315a) and a second surface (315b) opposite to the first surface (315a). For example, a compressive stress may be applied to a region (800b) corresponding to a thickness (t1) from the second surface (315b) where the first portion (311) is formed, and a region (800a) between a thickness (t2) and a thickness (t3).

[0126] Within the region (800c) of the graph (800), a tensile stress may be applied by the second portion (312) surrounded by the first portion (311) of the cover glass (310). For example, the cover glass (310) may have a stress (s2), which is a tensile stress, within the region (800c) corresponding to the second portion (312). For example, a tensile stress may be applied to the region (800c) between the thickness (t2) and the thickness (t3) where the second portion (312) is formed. At a position corresponding to the region (800c), at least one void (e.g., at least one void (610) of FIG. 6b) for forming a marker (e.g., the marker (500) of FIG. 5a) may be formed. The cover glass (310) can reduce damage to the cover glass (310) due to external impact through stress balance between the first part (311) and the second part (312).

[0127] Figures 9a and 9b illustrate a portion of an exemplary wearable device.

[0128] Referring to FIGS. 9A and 9B, a wearable device (200) may include a housing assembly (210) including a cover glass (310) defining a front surface (200a) of the wearable device (200), and a bracket (320) at least partially covered by the cover glass (310). The wearable device (200) may include a camera (425) supported by the bracket (320) and positioned toward the front surface (200a) of the wearable device (200) to receive light through the cover glass (310). The cover glass (310) may include at least one gap (610) positioned in an optical path of light transmitted to the camera (425) to form a marker (500) detectable by the camera (425). According to one embodiment, the cover glass (310) may include an outer surface (315) defining a first side (315a) corresponding to the front side (200a) of the wearable device (200) and a second side (315b) opposite the first side (315a). According to one embodiment, the at least one void (610) may include voids (611, 612, 613) each having a pattern for forming the marker (500).

[0129] In one embodiment, the cover glass (310) may include a first layer (910) forming a portion of at least one void (610) and a second layer (920) forming a remaining portion of the at least one void (610) and attached to the first layer (910). For example, the first layer (910) may form a first side (315a) of the cover glass (310). The second layer (920) attached to the first layer (910) may form a second side (315b) of the cover glass (310) that is arranged toward the camera (425). For example, a portion of the at least one void (610) may be formed on one side (910a) of the first layer (910) that is attached to the second layer (920). The remaining portion of at least one of the voids (610) may be formed on one side (920a) of the second layer (920) attached to the first layer (910). However, the embodiment is not limited thereto, and for example, the cover glass (310) may include a laminated structure of a plurality of layers each forming a portion of at least one void (610). The cover glass (310) may include, for example, an adhesive material that attaches the plurality of layers to each other, but the embodiment is not limited thereto.

[0130] Referring to FIG. 9B, the housing assembly (210) may include a filler (930) that fills at least one void (610) and is transparent to light transmitted to the camera (425). For example, the filler (930) may be interposed between the first layer (910) and the second layer (920). For example, the filler (930) may be positioned within a space formed by the at least one void (610). The filler (930) may be, for example, a material having a refractive index substantially the same as or similar to a material forming the cover glass (310). For example, the filler (930) may include glass, a liquid, and / or a polymeric material. The filler (930) can reduce the light received from the outside of the wearable device (200) to the camera (425) from being refracted by the at least one void (610) by filling the at least one void (610). According to one embodiment, the filler (930) can include an opaque and / or translucent material. For example, the filler (930) can be configured to identify a marker (500) placed on an optical path of light received by the camera (425) through the front (200a) of the wearable device (200) defined by the cover glass (310) by filling the at least one void (610) by the camera (425).

[0131] According to the above-described embodiment, the cover glass (310) of the wearable device (200) may be configured such that the gap (610) is easily formed inside the cover glass (310) by including layers (910, 920) each forming at least one void (610). The wearable device (200) may include a filler (930) filling the at least one void (610), thereby reducing light received by the camera (425) from the outside of the wearable device (200) from being refracted by the at least one void (610).

[0132] Figure 10 illustrates a manufacturing process of a cover glass of an exemplary wearable device.

[0133] Referring to FIG. 10, in process (1000a), an original fabric (1010) of a cover glass (310) can be prepared. From the fabric (1010), an original plate (1020) of the cover glass (310) for manufacturing the cover glass (310) can be obtained. For example, the original plate (1020) of the cover glass (310) can be obtained by cutting the fabric (1010) to a specified size.

[0134] In the process (1000b), at least one void (610) may be formed in the original plate (1020) of the cover glass (310). For example, the at least one void (610) may be formed by a laser irradiated from a laser irradiation device (10). The at least one void (610) may be formed, for example, by controlling the laser irradiation device (10) so that the laser is irradiated to a position where the at least one void (610) is formed in the original plate (1020) of the cover glass (310). The at least one void (610), by being formed in the original plate (1020), may form a marker (500) used to provide spatial information of the wearable device (200).

[0135] In the process (1000c), the original plate (1020) of the cover glass (310) can be deformed by heat treatment. For example, the original plate (1020) can be processed to have a shape corresponding to the curvature of the first mold (1031) and the second mold (1032) by being pressurized and heated by a first mold (1031) and a second mold (1032) having curvatures.

[0136] In the process (1000d), the original plate (1020) of the thermoformed cover glass (310) can be cooled by a fluid (1040). The rigidity of the original plate (1020) can be improved by being cooled by the fluid (1040). For example, by cooling the original plate (1020) by the fluid (1040), an outer surface of the cover glass (310) (e.g., the outer surface (315) of FIG. 5b) can be formed, and a first portion (311) having compressive stress can be formed. The process (1000d) may be referred to as an annealing process, but is not limited thereto.

[0137] In process (1000e), a cover glass (310) can be provided by separating the cooled plate (1020) from the fluid (1040) of process (1000d). The cover glass (310) can have improved rigidity against external impact by including a first portion (311) formed from process (1000d). The cover glass (310) can provide a marker (500) for providing spatial information of a wearable device (200) by including at least one void (610) located within a second portion (312) surrounded by the first portion (311) from process (1000b).

[0138] Figure 11 illustrates a portion of an exemplary wearable device.

[0139] Referring to FIG. 11, a wearable device (200) may include a housing assembly (210) including a cover glass (310) defining a front surface (200a) of the wearable device (200), and a bracket (320) at least partially covered by the cover glass (310). The wearable device (200) may include a camera (425) supported by the bracket (320) and positioned toward the front surface (200a) of the wearable device (200) to receive light through the cover glass (310).

[0140] According to one embodiment, unlike that illustrated in FIGS. 6A to 10, the housing assembly (210) may include a printed layer (1100) attached to an outer surface (315) of the cover glass (310). The printed layer (1100) may include at least one through hole (1110) positioned above the camera (425). The at least one through hole (1110) may include, for example, through holes (1111, 1112, 1113) that form a marker (500) positioned on an optical path of light received through the cover glass (310) so as to be detectable by the camera (425). For example, the print layer (1100) may be attached to at least one of the first side (315a) and the second side (315b) of the cover glass (310), thereby providing a marker (500) detectable by the camera (425) through the at least one through hole (1110). However, the above-mentioned embodiment is illustrative and not limited thereto.

[0141] According to the above-described embodiment, a wearable device (e.g., a wearable device (200) of FIG. 2A) may include a housing assembly (e.g., a housing assembly (210) of FIG. 2A) including a cover glass (e.g., a cover glass (310) of FIG. 3) defining a front side (e.g., a front side (200a) of FIG. 2A) of the wearable device, and a bracket (e.g., a bracket (320) of FIG. 3) at least partially covered by the cover glass. The wearable device may include a camera (e.g., a plurality of cameras (260) of FIG. 2A, a camera (425) of FIG. 4) supported by the bracket and positioned toward the front side of the wearable device to receive light through the cover glass. The cover glass may include at least one gap (e.g., at least one gap (610) in FIG. 6b) positioned in the optical path of light transmitted to the camera to form a marker detectable by the camera (e.g., marker (500) in FIG. 5a).

[0142] For example, the cover glass may include a first portion defining a continuous outer surface of the cover glass and to which a compressive stress is applied (e.g., the first portion (311) of FIG. 7A), and a second portion within the cover glass surrounded by the first portion and to which a tensile stress is applied (e.g., the second portion (312) of FIG. 7A). The at least one void may be located within the second portion of the first portion and the second portion.

[0143] For example, the cover glass may include a first side corresponding to the front side of the wearable device (e.g., the first side (315a) of FIG. 5B) and a second side opposite to the first side (e.g., the second side (315b) of FIG. 5B). The at least one gap may be disposed between the first side and the second side so as to be formed inside the cover glass, and may overlap the camera when the front side of the wearable device is viewed from above.

[0144] For example, the at least one void may be formed adjacent to the first surface among the first surface and the second surface. The housing assembly may include a first anti-slip layer (e.g., the first anti-slip layer (711) of FIG. 7B) attached on the first surface so as to be visible from the outside.

[0145] For example, the at least one void may be formed adjacent to the second surface among the first surface and the second surface. The housing assembly may include a second anti-slip layer (e.g., the second anti-slip layer (712) of FIG. 7C) attached on the second surface so as to be positioned toward the camera.

[0146] For example, at least one of the first side and the second side may have a curvature so as to be bent.

[0147] For example, the housing assembly may further include a filler (e.g., filler (930) of FIG. 9B) that fills the at least one void and is transparent to light transmitted to the camera.

[0148] For example, the cover glass may include a first layer (e.g., the first layer (910) of FIG. 9A) forming a portion of the at least one void, and a second layer (e.g., the second layer (920) of FIG. 9A) forming a remaining portion of the at least one void and attached to the first layer.

[0149] For example, the wearable device may include a display (e.g., at least one display (350) of FIG. 3, a display (420) of FIG. 4), at least one processor (e.g., the processor (410) of FIG. 4), and a memory (e.g., the memory (415) of FIG. 4) including one or more storage media storing instructions. The instructions, when individually or collectively executed by the at least one processor, may cause the wearable device to acquire an image using the camera. The instructions, when individually or collectively executed by the at least one processor, may cause the wearable device to identify a location of the marker on the display using light received by the camera through the at least one aperture. The instructions, when individually or collectively executed by the at least one processor, may cause the wearable device to acquire spatial information of the wearable device using the image based on the location of the marker.

[0150] For example, the at least one pore may include a plurality of pores having a pattern. The marker may have a shape corresponding to the pattern.

[0151] For example, the at least one void may have a shape including a plurality of concentric circles (e.g., a plurality of concentric circles (610a, 610b, 610c, 610d) of FIG. 6B) when the front of the wearable device is viewed from above.

[0152] For example, the cover glass may include a first side corresponding to the front side of the wearable device, and a second side opposite the first side. The at least one gap may include a plurality of gaps (e.g., a plurality of gaps (611, 612, 613, 614, 615) of FIG. 6B) arranged in a row along a virtual side (e.g., a virtual side (700) of FIG. 7A) between the first side and the second side. A distance between the first side and the virtual side may correspond to a distance between the second side and the virtual side.

[0153] For example, each distance between the first surface and at least some of the plurality of gaps may be different from each other.

[0154] For example, the bracket may include a support portion (e.g., support portion (620) of FIG. 6B) that is positioned under the cover glass and is coupled to the camera to fix the camera toward the at least one gap.

[0155] For example, the cover glass may include a first portion defining a continuous outer surface of the cover glass and to which a compressive stress is applied, and a second portion within the cover glass, surrounded by the first portion and to which a tensile stress is applied. The at least one void may be at least partially located within the first portion of the first portion and the second portion. The housing assembly may include at least one anti-shatter layer (e.g., at least one anti-shatter layer (710) of FIG. 7A) attached to the first portion.

[0156] In one embodiment, a wearable device may include a housing assembly comprising a cover glass defining a front surface of the wearable device and including at least one aperture. The wearable device may include a camera within the housing assembly, the camera being positioned toward the front surface of the wearable device and aligned with the at least one aperture. The wearable device may include a display within the housing assembly, at least one processor within the housing assembly, and a memory within the housing assembly, the memory comprising one or more storage media storing instructions. The instructions, when individually or collectively executed by the at least one processor, may cause the wearable device to acquire an image using the camera. The instructions, when individually or collectively executed by the at least one processor, may cause the wearable device to identify a location of a marker formed through the at least one aperture on the display using light received by the camera through the at least one aperture. The instructions, when individually or collectively executed by the at least one processor, may cause the wearable device to obtain spatial information of the wearable device using the image based on the location of the marker.

[0157] For example, the cover glass may include a first portion defining a continuous outer surface of the cover glass and to which a compressive stress is applied, and a second portion within the cover glass, surrounded by the first portion and to which a tensile stress is applied. The at least one void may be located within the second portion of the first portion and the second portion.

[0158] For example, the cover glass may include a first side corresponding to the front surface of the wearable device, and a second side opposite the first side. The at least one gap may include a plurality of gaps arranged along a virtual surface between the first side and the second side. A distance between the first side and the virtual surface may correspond to a distance between the second side and the virtual surface.

[0159] For example, the housing assembly may further include at least one anti-shatter layer attached to at least one of the first side and the second side and overlapping the at least one air gap when the front surface of the wearable device is viewed from above.

[0160] For example, the housing assembly may further include a filler that fills the at least one void and is transparent to light transmitted to the camera.

[0161] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, electronic devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0162] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0163] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0164] Various embodiments of the present document may be implemented as software (e.g., a program (140)) including one or more instructions stored in a storage medium (e.g., an internal memory (136) or an external memory (138)) readable by a machine (e.g., an electronic device (101)). For example, a processor (e.g., a processor (120)) of the machine (e.g., an electronic device (101)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0165] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0166] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In wearable devices, A housing assembly comprising a cover glass defining a front surface of the wearable device, and a bracket at least partially covered by the cover glass; and A camera supported by the bracket and positioned toward the front of the wearable device to receive light through the cover glass, The above cover glass, comprising at least one gap disposed in the optical path of light transmitted to the camera so as to form a marker detectable by the camera; Wearable devices.

2. In paragraph 1, The above cover glass, A first portion defining a continuous outer surface of the cover glass and to which a compressive stress is applied; and A second portion inside the cover glass, surrounded by the first portion and to which tensile stress is applied, At least one of the above voids, Located within the second part among the first part and the second part, Wearable devices.

3. In paragraph 1 or 2, The above cover glass, A first side corresponding to the front surface of the wearable device; and comprising a second side opposite to the first side, At least one of the above voids, It is arranged between the first side and the second side so as to be formed inside the cover glass, and overlaps with the camera when the front of the wearable device is viewed from above. Wearable devices.

4. In paragraph 3, At least one of the above voids, Among the first and second surfaces, it is formed adjacent to the first surface, The above housing assembly, Further comprising a first anti-slip layer attached on the first surface so as to be visible from the outside of the wearable device; Wearable devices.

5. In paragraph 3, At least one of the above voids, It is formed adjacent to the second surface among the first surface and the second surface, The above housing assembly, Further comprising a second anti-slip layer attached on the second surface so as to be positioned toward the camera; Wearable devices.

6. In paragraph 3, At least one of the first side and the second side, Having a curvature that allows it to bend, Wearable devices.

7. In any one of paragraphs 1 to 6, The above housing assembly, Further comprising a filler that fills at least one of the voids and is transparent to light transmitted to the camera. Wearable devices.

8. In any one of paragraphs 1 to 7, The above cover glass, a first layer forming a portion of at least one of the above voids; and a second layer forming a remaining portion of at least one of the voids and attached to the first layer; Wearable devices.

9. In any one of paragraphs 1 to 8, display; at least one processor; and A memory comprising one or more storage media storing instructions, wherein the instructions, when individually or collectively executed by the at least one processor, cause the wearable device to: Acquire an image using the above camera; Identifying the position of the marker on the display using light received by the camera through at least one of the gaps; and Based on the position of the marker, using the image, causing spatial information of the wearable device to be acquired. Wearable devices.

10. In paragraph 9, At least one of the above voids, Contains multiple voids having a pattern, The above marker is, Having a shape corresponding to the above pattern, Wearable devices.

11. In any one of paragraphs 1 to 10, At least one of the above voids, When the front of the wearable device is viewed from above, it has a shape including a plurality of concentric circles. Wearable devices.

12. In any one of paragraphs 1 to 11, The above cover glass, A first side corresponding to the front surface of the wearable device; and comprising a second side opposite to the first side, At least one of the above voids, comprising a plurality of gaps arranged so as to be arranged along an imaginary surface between the first surface and the second surface; The distance between the first surface and the virtual surface is Corresponding to the distance between the second surface and the virtual surface, Wearable devices.

13. In paragraph 12, Each distance between the first surface and at least some of the plurality of gaps is Different from each other, Wearable devices.

14. In any one of paragraphs 1 to 13, The above brackets are, A support portion disposed under the cover glass and coupled to the camera to fix the camera toward the at least one gap, Wearable devices.

15. In any one of paragraphs 1 to 14, The above cover glass, A first portion defining a continuous outer surface of the cover glass and to which a compressive stress is applied; and A second portion inside the cover glass, surrounded by the first portion and to which tensile stress is applied, At least one of the above voids, At least partially located within the first part among the first part and the second part, The above housing assembly, further comprising at least one anti-slip layer attached to the first portion; Wearable devices.

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