Wearable electronic device comprising light output module

Abstract

The present disclosure relates to a wearable electronic device. According to one embodiment of the present disclosure, a wearable electronic device may be provided which comprises: a light output module configured to output light; a waveguide that is an image combiner and includes a first diffractive element, which includes a first area configured to guide the light to be transmitted to an eye in an inner space of the waveguide and a second area excluding the first area in the inner space of the waveguide and is configured to transmit the light in a first direction or a second direction, a third diffractive element, and a first inclined surface configured to be inclined with respect to the first direction at a position corresponding to the second area; a sensor disposed on the first inclined surface and configured to detect light diffracted in the second direction from the first diffraction element; at least one processor operatively connected to the light output module and / or the sensor; and a memory, wherein the memory stores instructions that, by means of the at least one processor, cause the wearable electronic device to identify information related to the light detected by the sensor, and control the light output from the light output module on the basis of the information related to the light detected by the sensor.

Description

Wearable electronic device including an optical output module

[0001] The embodiments of the present disclosure relate to wearable electronic devices, for example, wearable electronic devices including a light output module.

[0002] With the development of electronic, information, and communication technologies, various functions are being integrated into a single electronic device. For example, an electronic device (e.g., a smartphone) includes communication functions as well as functions such as an audio player, an imaging device, or an electronic notebook, and even more diverse functions can be implemented on the smartphone through the additional installation of applications. In addition to executing installed applications or stored functions, the electronic device can receive various information in real time by connecting to a server or other electronic device via wired or wireless means.

[0003] As the use of electronic devices becomes commonplace, user demand for the portability and usability of such devices may increase. In response to these user demands, electronic devices that can be carried and used while worn on the body, similar to wristwatches or glasses (hereinafter referred to as "wearable electronic devices") have been commercialized. Among wearable electronic devices, those that can be worn on the face can be effectively utilized for implementing virtual reality or augmented reality. For example, wearable electronic devices can implement virtual reality by providing three-dimensional images of a virtual space within a game enjoyed on a television or computer monitor, while blocking images of the actual space where the user is located. Other types of wearable electronic devices can implement augmented reality by providing an environment where the user can visually perceive actual images of the space they are in, while simultaneously displaying virtual images to provide the user with various visual information. The "actual images of the space" may include, for example, images captured by a camera or images transmitted through see-through optics. 'Virtual images' may include information about the space where the user is staying, and / or information about various objects within the space.

[0004] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art in relation to the present disclosure.

[0005] The present disclosure relates to a wearable electronic device. According to one embodiment of the present disclosure, a wearable electronic device comprises: a light output module configured to output light; an image combiner configured to transmit light output from the light output module to the user's eyes when the user wears the wearable electronic device, wherein the image combiner includes a first region configured to guide the light to be transmitted to the eyes within the internal space of the image combiner, a second region excluding the first region within the internal space of the image combiner, and a first diffraction element configured to receive the light output from the light output module and transmit it in a first direction which is a direction toward the first region or a second direction which is opposite to the first direction and is a direction toward the second region, a third diffraction element formed spaced apart from the first diffraction element in the first direction and configured to transmit the light to the user's eyes, and a first inclined surface configured to be inclined with respect to the first direction at a position corresponding to the second region, wherein the image combiner is disposed on the first inclined surface and the first A wearable electronic device may be provided comprising a sensor configured to detect light diffracted in a second direction from a diffraction element, the light output module and / or at least one processor operatively connected to the sensor and a memory, wherein the memory stores instructions that, when executed individually or collectively by the at least one processor, cause the wearable electronic device to identify information related to the light detected by the sensor and, based on the information related to the light detected by the sensor, to control the light output from the light output module in order to compensate for the difference between information regarding the light output from the light output module and information related to the light detected by the sensor.

[0006] The present disclosure relates to a wearable electronic device.According to one embodiment of the present disclosure, a wearable electronic device comprises: a light output module configured to output light; an image combiner configured to transmit light output from the light output module to the user's eyes when the user wears the wearable electronic device, wherein the image combiner includes a first region within the internal space of the image combiner that guides the light to be transmitted to the eyes, a second region within the internal space of the image combiner excluding the first region, a first diffraction element configured to receive the light output from the light output module and transmit it in a first direction that is directed toward the first region and substantially parallel to the image combiner, or in a second direction that is opposite to the first direction and directed toward the second region, a third diffraction element formed spaced apart from the first diffraction element in the first direction and configured to transmit the light to the user's eyes, and a second diffraction element disposed between the first diffraction element and the third diffraction element, and corresponding to the second region A wearable electronic device may be provided comprising: an image combiner including an inclined surface configured to be inclined with a first direction at a position; a sensor disposed on the inclined surface and configured to detect light diffracted from a first diffraction element in a second direction; at least one processor and memory operatively connected to the light output module and / or the sensor, wherein the memory stores instructions that, when executed individually or collectively by the at least one processor, cause the wearable electronic device to: identify information related to the light detected by the sensor; and, based on the information related to the light detected by the sensor, control the light output from the light output module to compensate for the difference between information regarding the light output from the light output module and information related to the light detected by the sensor.

[0007] The present disclosure relates to a wearable electronic device. According to one embodiment of the present disclosure, a wearable electronic device comprises: a light output module configured to output light; an image combiner configured to transmit light output from the light output module to the user's eyes when the user wears the wearable electronic device, the image combiner comprising: a first region within the internal space of the image combiner that guides the light to be transmitted to the eyes; a second region within the internal space of the image combiner excluding the first region; a first diffraction element configured to receive the light output from the light output module and transmit it in a first direction which is a direction toward the first region or a second direction which is opposite to the first direction and is a direction toward the second region; a third diffraction element formed spaced apart from the first diffraction element in the first direction and configured to transmit the light to the user's eyes; and an inclined surface configured to be inclined with respect to the first direction at a position corresponding to the second region, the image combiner comprising: a first diffraction element disposed on the inclined surface and extending from the first diffraction element in the second direction A wearable electronic device may be provided that includes a sensor configured to detect diffracted light.

[0008] The aspects, configurations, and / or advantages described above regarding one embodiment of the present disclosure may become more apparent from the following detailed description with reference to the accompanying drawings.

[0009] The aspects, configurations, and / or advantages described above regarding one embodiment of the present disclosure may become more apparent from the following detailed description with reference to the accompanying drawings.

[0010] FIG. 1 is a block diagram of an electronic device in a network environment according to one embodiment.

[0011] FIG. 2 is a schematic diagram illustrating the usage state of an augmented reality device according to one embodiment of the present disclosure.

[0012] FIG. 3 is a schematic diagram illustrating a visual image provided to a user according to one embodiment of the present disclosure.

[0013] FIG. 4 is a perspective view for explaining the internal configuration of a wearable electronic device according to one embodiment of the present disclosure.

[0014] FIG. 5 is a conceptual drawing showing a part of a wearable electronic device according to one embodiment of the present disclosure.

[0015] FIG. 6 is a conceptual diagram illustrating the propagation of light through a wave guide according to one embodiment of the present disclosure.

[0016] FIG. 7 is a conceptual diagram illustrating the propagation of light through an image combiner according to one embodiment of the present disclosure.

[0017] FIG. 8 is a part of an image combiner according to one embodiment of the present disclosure.

[0018] FIG. 9 is a drawing showing an image combiner according to one embodiment of the present disclosure.

[0019] FIG. 10 is a part of an image combiner according to one embodiment of the present disclosure.

[0020] FIG. 11 is a part of an image combiner according to one embodiment of the present disclosure.

[0021] FIG. 12 is a part of an image combiner according to one embodiment of the present disclosure.

[0022] FIG. 13 is a drawing showing an image combiner according to one embodiment of the present disclosure.

[0023] FIG. 14 is a drawing showing an image combiner according to one embodiment of the present disclosure.

[0024] FIG. 15 is a drawing showing an image combiner according to one embodiment of the present disclosure.

[0025] FIG. 16 is a drawing showing an image combiner according to one embodiment of the present disclosure.

[0026] Throughout the attached drawings, similar parts, configurations, and / or structures may be assigned similar reference numbers.

[0027] A wearable electronic device is an electronic device capable of replacing conventional glasses, and may have a structure in which a micro-light output module is placed and / or positioned in at least one part (e.g., the temple part of the wearable electronic device (101)) to display images or videos required by the user in real space. Light output from the light output module to transmit images or videos may be delivered to the user through an optical component called an image combiner. For example, the light output from the light output module that generates images or videos of the wearable electronic device may be light output from an LED light source placed inside the light output module, and the wavelength of the light output from the LED light source may change according to changes in ambient temperature.

[0028] Generally, wearable electronic devices can monitor temperature changes in real time by equipping a temperature sensor inside the light output module. Due to this monitoring, the wearable electronic device can provide a function to correct and / or compensate for wavelength characteristics. For example, in the case of a wearable electronic device, light output from the light output module to generate images and videos is transmitted to a first diffraction element of an image combiner, and the light diffracted from the first diffraction element toward the eye is transmitted to the user. Therefore, even if wavelength characteristics according to temperature are corrected inside the light output module, changes in light intensity when transmitted to the eye through the image combiner cannot be compensated, which may result in a problem where the degradation of image quality perceived by the user cannot be completely prevented.

[0029] One embodiment of the present disclosure is intended to at least resolve the problems and / or disadvantages described above and at least provide the advantages described below, and can provide a wearable electronic device that provides an improved usage environment.

[0030] According to one embodiment of the present disclosure, the wearable electronic device of the present disclosure may provide a wearable electronic device having a light sensor capable of monitoring the intensity of a beam traveling in the opposite direction of the eye among light output from a light output module, incident on an image combiner, and diffracted by a first diffraction element. As a result, even when an optical axis alignment error is caused by external impact or the like, the user may be provided with a video and / or image of corrected quality.

[0031] The technical problems to be solved in this document are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art to which this disclosure belongs from the description below.

[0032] The following description relating to the attached drawings may provide an understanding of various exemplary embodiments of the present disclosure, including the claims and their corresponding contents. While the exemplary embodiments disclosed in the following description include various specific details to aid understanding, they are to be considered as one of various exemplary embodiments. Accordingly, those skilled in the art will understand that various changes and modifications to the various embodiments described in the present disclosure may be made without departing from the scope and technical spirit of the disclosure. Additionally, for clarity and brevity, descriptions of well-known functions and configurations may be omitted.

[0033] The terms and words used in the following description and claims are not limited to their literal meanings but may be used to clearly and consistently describe an embodiment of the present disclosure. Accordingly, it will be apparent to a person skilled in the art that the following description of various embodiments of the disclosure is provided for illustrative purposes, not for the purpose of limiting the scope of the rights or the disclosure defined as equivalent thereto.

[0034] Unless the context clearly indicates otherwise, it should be understood that the singular forms of "a," "an," and "the" include a plural meaning. Thus, for example, "component surface" can be understood to include one or more of the component surfaces.

[0035] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to one embodiment.

[0036] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or with at least one of an electronic device (104) or a server (108) through 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) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In some embodiments, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In some embodiments, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0037] The processor (120) can control at least one other component (e.g., hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., program (140)), for example, and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., sensor module (176) or communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., central processing unit or application processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., graphics processing unit, neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0038] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) 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. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or through a separate server (e.g., server (108)). The learning algorithm may 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 may include a plurality of artificial neural network layers.An artificial neural network may be 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 the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0039] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0040] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0041] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0042] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0043] The display module (160) can visually provide information to an external (e.g., user) of the electronic device (101). The display module (160) may include, for example, a light output module, a holographic device, or a projector and a control circuit for controlling said 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 the force generated by said touch.

[0044] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) connected directly or wirelessly to the electronic device (101).

[0045] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0046] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to 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.

[0047] The connection terminal (178) may include a connector through which the electronic device (101) can 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).

[0048] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0049] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0050] The power management module (188) can manage the power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least part of a power management integrated circuit (PMIC).

[0051] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0052] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an 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 include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and 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., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device (104) through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., 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 may 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 identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0053] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), 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), external electronic device (e.g., electronic device (104)), or network system (e.g., 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 realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mMTC, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for realizing URLLC.

[0054] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). According to one embodiment, the antenna module (197) may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to 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 a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).

[0055] According to one embodiment, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0056] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0057] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through a server (108) connected to a second network (199). Each of the external electronic devices (102, or 104) may be the same or different type of device as the electronic device (101). According to one embodiment, all or part of the operations performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104, or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or 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 provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In one embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within a 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.

[0058] An electronic device according to one embodiment disclosed in this document may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiment of this document is not limited to the aforementioned devices.

[0059] The embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said 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 said items unless the relevant context clearly indicates otherwise. In this document, phrases such as "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" may each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as “coupled” or “connected” to another (e.g., 2nd) component, with or without the terms “functionally” or “communicationly,” it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0060] According to one embodiment of this document, the term “module” used 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, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof 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).

[0061] One embodiment of the present document may be implemented as software (e.g., program (140)) comprising one or more instructions stored in a storage medium (e.g., internal memory (136) or external memory (138)) readable by a machine (e.g., electronic device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., electronic device (101)) may call at least one of the one or more instructions stored in the storage medium and execute it. This enables the machine to be operated 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 that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0062] According to one embodiment, the method according to one embodiment disclosed herein may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)) or an application store (e.g., Play Store). TM It can be distributed online (e.g., downloaded or uploaded) through ) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0063] According to one embodiment, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to one embodiment, one or more of the components or operations among the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to one embodiment, operations performed by the module, program, or other components 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.

[0064] FIG. 2 is a schematic diagram illustrating the usage state of an augmented reality device according to one embodiment of the present disclosure. FIG. 3 is a schematic diagram illustrating a visual image provided to a user according to one embodiment of the present disclosure.

[0065] The embodiments of FIGS. 2 and 3 can be combined with the embodiments of FIGS. 4 to 16.

[0066] Referring to FIGS. 2 and 3, the wearable electronic device (101) may be a glasses-type device configured to be worn by a user. The wearable electronic device (101) is not limited thereto and may be provided as various types of devices that are wearable by a user and capable of providing augmented reality to the user.

[0067] According to one embodiment, the wearable electronic device (101) may include a light output module (1011) for generating a virtual image formed by light generated from a light source.

[0068] According to one embodiment, a wearable electronic device (101) may include a wave guide (1012) (image combiner) configured to guide a virtual image generated by a light output module (1011) to the user's eye (10). The wave guide (1012) may be formed of a material that is transparent to the visible light band so that a scene of the real world can be seen together with the virtual image, but is not limited thereto.

[0069] According to one embodiment, the light output module (1011) may be configured to generate light of a virtual image. The light output module (1011) may be a projector including an image panel, an illumination optical system, or a projection optical system. For example, the light output module (1011) is a device that emits light for outputting a virtual object at a predetermined viewing angle. For example, the light output module (1011) may be a projector that projects light generated by an image panel or a projector that scans modulated light, but is not limited thereto.

[0070] According to one embodiment, the light output module (1011) may include a light output module engine for the left eye and a light output module engine for the right eye, corresponding to the user's left eye and right eye, respectively, but is not limited thereto. The light output module (1011) may be placed and / or positioned on the temple of the wearable electronic device (101), but is not limited thereto.

[0071] According to one embodiment, the light output module (1011) may be a device in which an image-video generating device that generates visual content such as images and videos and a lighting light source that generates light are used together.

[0072] According to one embodiment, the light output module (1011) may be configured to output polarized light or unpolarized light according to the method of an image panel or lighting optical system in order to generate visual content such as images and videos. The light output module (1011) may include, but is not limited to, an LCoS (Liquid Crystal on Silicon) panel, an LEDoS (LED on Silicon) panel, a DMD (Digital Micromirror Device) panel, or a laser scanner.

[0073] According to one embodiment, the light output module (1011) may use an LED light source to generate light. For example, a Red, Green, or Blue LED, or a Laser and White LED may be used as the LED light source. Although the use of an LED light source is described as an example in the present disclosure and the embodiments below, it is not limited thereto.

[0074] For example, the light output module (1011) may further include a temperature sensor for sensing the ambient temperature inside. For example, if the temperature sensor detects a change in the temperature around the light output module (1011), the wearable electronic device (101) may provide compensation for the change in the wavelength of light output from the light output module (1011).

[0075] According to one embodiment, light output from a light output module (1011) may be configured to be incident on one surface of a wave guide (1012). The light output module (1011) may be disposed on or coupled to one surface of the wave guide (1012). According to an embodiment, a filter (not shown) that passes only the wavelength band and / or polarization of the light output from the light output module (1011) may be disposed between the light output module (1011) and one surface of the wave guide (1012).

[0076] According to one embodiment, the wave guide (1012) can receive light of a virtual image output from a light output module engine. The light input to the wave guide (1012) can be diffracted in or within the wave guide (1012) and output to the user's eye (10).

[0077] According to one embodiment, the wave guide (1012) is an optical component that receives images and videos generated by the light output module (1011) and transmits them to the eye, and may be made of glass or plastic material.

[0078] According to one embodiment, the scene (20) seen by the eyes (10) of a user wearing a wearable electronic device (101) may include a real object (21) and a virtual object (22) (or a virtual image). For example, a wave guide (1012) may enable a real object (21) located outside the wearable electronic device (101) to be visually visible. Additionally, the wave guide (1012) may enable a virtual object (22) output from a light output module (1011) to be visually visible.

[0079] According to one embodiment, a wearable electronic device (101) and / or a wave guide (1012) can cause a virtual scene (e.g., 20b of FIG. 3) to appear superimposed on a real scene (e.g., 20a of FIG. 3) by overlaying a real object (21) and a virtual object (22) in a scene (20) seen by the user's eye (10). For example, the wearable electronic device (101) and / or the wave guide (1012) can cause a real object (21) and a virtual object (22) to appear superimposed. The wave guide (1012) may be defined and / or referred to as an image combiner that overlays a real object (21) and a virtual object (22).

[0080] According to one embodiment, the user's eye (10) may be separated from the wave guide (1012) by a first distance (L1), but the virtual object (22) output from the wave guide (1012) may be perceived as being located outside the wearable electronic device (101) by a second distance (L2) greater than the first distance (L1) from the wave guide (1012).

[0081] FIG. 4 is a perspective view for explaining the internal configuration of a wearable electronic device (101) according to one embodiment of the present disclosure.

[0082] The components described with reference to FIG. 4 may be partially or entirely identical to the components described with reference to FIG. 1 to 3. The components described with reference to FIG. 4 may be partially or entirely identical to the components described with reference to FIG. 5 to 16.

[0083] In the following detailed description, the length direction, width direction, and / or thickness direction (or height direction) of the electronic device may be mentioned, and the length direction may be defined as the 'Z-axis direction', the width direction as the 'X-axis direction', and / or the thickness direction as the 'Y-axis direction'. According to one embodiment, regarding the direction in which the component is oriented, the Cartesian coordinate system illustrated in the drawings and, for example, 'negative / positive (- / +)' may be mentioned together. For example, the front of the electronic device and / or housing may be defined as the 'face facing the -Y direction', and the rear may be defined as the 'face facing the +Y direction'. According to one embodiment, the side of the electronic device and / or housing may include an area facing the +X direction, an area facing the +Y direction, an area facing the -X direction, and / or an area facing the -Y direction. According to one embodiment, the 'X-axis direction' may mean both the '-X direction' and the '+X direction'. In the following description of the electronic device (101), the ‘first direction’ may mean the ‘+X-axis direction’ (or a direction parallel to the +X-axis), and the ‘second direction’ may mean the ‘-X-axis direction’ (or a direction parallel to the -X-axis). In the following description of the electronic device (101), the statement that a certain component is ‘disposed on’ another component may mean that the said certain component is placed in the -Z direction relative to the said other component. This is based on the orthogonal coordinate system described in the drawings for the sake of brevity of explanation, and it should be noted that the description of these directions or components does not limit the embodiment(s) of the present disclosure. For example, the orthogonal coordinate system may be defined differently from the present disclosure depending on the design specifications of the electronic device or the user's usage habits.

[0084] Referring to FIG. 4, a wearable electronic device (200) according to one embodiment of the present disclosure may include at least one of a light output module (211) (e.g., the light output module (1011) of FIG. 2), a display member (201), and a camera module (250).

[0085] According to one embodiment, the wearable electronic device (200) may be a body-worn device. For example, the wearable electronic device (200) may be a head mounting device (HMD), smart glasses, or a video see-through (VST) device capable of providing images directly in front of the user's eyes. In the illustrated embodiment, the wearable electronic device (200) is illustrated as having the appearance of goggles, but the wearable electronic device (200) of the present disclosure is not limited thereto and may have various types of appearances. The wearable electronic device (200) may provide a pass-through function. The wearable electronic device (200) may be named a pass-through device.

[0086] According to one embodiment of the present disclosure, the light output module (211) may include a light source capable of outputting an image and a lens that guides the image to a display member (201). According to one embodiment of the present disclosure, the light output module (211) may include at least one of a liquid crystal light output module (LCD), a digital mirror device (DMD), a liquid crystal on silicon (LCoS), a light emitting diode (LED) on silicon (LEDoS), an organic light emitting diode (OLED), or a micro light emitting diode (micro LED). The light output module (211) may be named a "display".

[0087] According to one embodiment of the present disclosure, the display member (201) may include an optical waveguide (e.g., a waveguide). The display member (201) may be named "display". According to one embodiment of the present disclosure, an output image of an optical output module (211) incident on one end of the optical waveguide may be propagated within the optical waveguide and provided to a user. According to one embodiment of the present disclosure, the optical waveguide may include at least one of a diffractive optical element (DOE), a holographic optical element (HOE), or a reflective element (e.g., a reflective mirror). For example, the optical waveguide may guide the output image of the optical output module (211) to the user's eye by including at least one of a diffractive optical element, a holographic optical element, or a reflective element (e.g., a reflective mirror).

[0088] According to one embodiment of the present disclosure, the camera module (250) can capture still images and / or video. According to one embodiment, the camera module (250) may be placed within a lens frame and around a display member (201).

[0089] According to one embodiment of the present disclosure, a first camera module (251) can capture and / or recognize the trajectory of a user's eye (e.g., pupil, or iris) or gaze. According to one embodiment of the present disclosure, the first camera module (251) can periodically or non-periodically transmit information related to the trajectory of the user's eye or gaze (e.g., trajectory information) to a processor (e.g., processor (120) of FIG. 1). The first camera module (251) can receive light that is irradiated from a lamp and reflected into the user's eye.

[0090] According to one embodiment of the present disclosure, the second camera module (253) can capture an external image.

[0091] According to one embodiment of the present disclosure, a third camera module (255) may be used for tracking and recognizing user gestures (e.g., hand movements). According to one embodiment of the present disclosure, a third camera module (255) may be used for 3 degrees of freedom (3DoF) and 6DoF head tracking, location (space, environment) recognition, and / or movement recognition. According to one embodiment of the present disclosure, a second camera module (253) may be used for hand detection and tracking and user gesture recognition. According to one embodiment of the present disclosure, at least one of the first camera module (251) to the third camera module (255) may be replaced with a sensor module (e.g., a LiDAR sensor). For example, the sensor module may include at least one of a vertical cavity surface emitting laser (VCSEL), an infrared sensor, and / or a photodiode.

[0092] FIG. 5 is a conceptual diagram showing a part of a wearable electronic device (101). FIG. 6 is a conceptual diagram showing the propagation of light through an image combiner (410). FIG. 7 is a diagram explaining the light paths (P1, P2, P3, P4) through the image combiner (410). FIG. 8 is a diagram explaining the propagation of light through a first wave guide (411) and guides (412, 413).

[0093] The components described with reference to FIGS. 5 through 8 may be partially or entirely identical to the components described with reference to FIGS. 1 through 4. The components described with reference to FIGS. 5 through 8 may be partially or entirely identical to the components described with reference to FIGS. 9 through 16.

[0094] According to one embodiment, a wearable electronic device (101) (e.g., the wearable electronic device (200) of FIG. 4) may include a housing (401). The housing (401) may have a space inside. The housing (401) may form the outer shape of the wearable electronic device (101).

[0095] According to one embodiment, the wearable electronic device (101) may include a light output module (402). The light output module (402) may be placed inside a housing (401). The light output module (402) may output light. The description of the light output module (402) may be substantially the same as the description of the light output module (211) described with reference to FIG. 4.

[0096] According to one embodiment, a wearable electronic device (101) may include an image combiner (410). The image combiner (410) may reflect, refract, and diffract light. Light output from a light output module (402) may proceed through the image combiner (410). The image combiner (410) may include a transparent material. At least a portion of the image combiner (410) may be banded. The image combiner (410) may guide at least a portion of the light output from the light output module (402) to the user's eye (E). Light output from the light output module (402) may proceed toward the eye (E) through the image combiner (410). The image combiner (410) may be named a "light guide." The image combiner (410) may be named a "wave guide."

[0097] According to one embodiment, the image combiner (410) may include a first waveguide (411) and a second waveguide (412). The first waveguide (411) may reflect, refract, and diffract light. The first waveguide (411) may face a light output module (402). Light output from the light output module (402) may be irradiated onto the first waveguide (411). Light output from the light output module (402) may travel along the first waveguide (411). Light output from the light output module (402) may be reflected inside the first waveguide (411). The first waveguide (411) may be named an "incoupler." The first waveguide (411) may be named a "first passage."

[0098] According to one embodiment, the image combiner (410) may include a second wave guide (412, 413). The second wave guide (412, 413) may reflect, refract, and diffract light. The second wave guide (412, 413) may be connected to the first wave guide (411). Light traveling inside the first wave guide (411) may travel toward the second wave guide (412, 413). The second wave guide (412, 413) may guide the direction of travel of light passing through the first wave guide (411). The second wave guide (412, 413) may refract light passing through the first wave guide (411). The second wave guide (412, 413) may diffract a portion of the light passing through the first wave guide (411).

[0099] According to one embodiment, the second wave guide (412, 413) may include the first guide (412) and the second guide (413). The first guide (412) and the second guide (413) may be substantially orthogonal. The first guide (412) may be connected to the first wave guide (411). The first guide (412) may be bent and extended from the first wave guide (411). Light passing through the first wave guide (411) may be directed to the first guide (412). The second guide (413) may be connected to the first guide (412). The second guide (413) may be bent and extended from the first guide (412). Light passing through the first guide (412) may be directed to the second guide (413). The first guide (412) may be named an "expansion portion." The first guide (412) may be named a "second passage." The second guide (413) may be named an "outcoupler." The second guide (413) may be named a "third passage." Referring to FIGS. 7 and 8, light output from the light output module (402) may travel along light paths (P1, P2, P3, P4). The light paths (P1, P2, P3, P4) may be formed inside the image combiner (410).

[0100] According to one embodiment, the optical paths (P1, P2, P3, P4) may include a first optical path (P1). The first optical path (P1) may be formed from an optical output module (402) toward a first wave guide (411). Light output from the optical output module (402) may proceed along the first optical path (P1) toward the first wave guide (411).

[0101] According to one embodiment, the optical paths (P1, P2, P3, P4) may include a second optical path (P2). The second optical path (P2) may be formed from the first wave guide (411) toward the first guide (412). Light traveling inside the first wave guide (411) may travel to the first guide (412) along the second optical path (P2). The second optical path (P2) may be formed by light traveling along the first optical path (P1) being reflected inside the first wave guide (411).

[0102] According to one embodiment, the optical paths (P1, P2, P3, P4) may include a third optical path (P3). The third optical path (P3) may be formed from the first guide (412) toward the second guide (413). Light traveling inside the first guide (412) may travel to the second guide (413) along the third optical path (P3). The third optical path (P3) may be formed by light traveling along the second optical path (P2) being refracted inside the first guide (412). A portion of the light traveling along the second optical path (P2) may be diffracted inside the first guide (412).

[0103] According to one embodiment, the light paths (P1, P2, P3, P4) may include a fourth light path (P4). The fourth light path (P4) may extend from the second guide (413) toward the display area (414). Light traveling inside the second guide (413) may travel to the display area (414) along the fourth light path (P4). The fourth light path (P4) may be formed by light traveling along the third light path (P3) being refracted inside the second guide (413). A portion of the light traveling along the third light path (P3) may be diffracted inside the second guide (413).

[0104] FIG. 9 is a drawing showing a wave guide according to one embodiment of the present disclosure. FIG. 10 is a part of a wave guide according to one embodiment of the present disclosure. FIG. 11 is a part of a wave guide according to one embodiment of the present disclosure. FIG. 12 is a part of a wave guide according to one embodiment of the present disclosure.

[0105] The components described with reference to FIGS. 9 through 12 may be partially or entirely identical to the components described with reference to FIGS. 1 through 8. The components described with reference to FIGS. 9 through 12 may be partially or entirely identical to the components described with reference to FIGS. 13 through 16.

[0106] Diffraction refers to the phenomenon where waves, such as light or sound, are refracted and spread out despite the obstacles when passing through them. Generally, diffraction plays an important role in optical devices or acoustic equipment, and in wearable electronic devices (101), it may be a phenomenon that occurs when light passes through lenses and / or filters. At this time, the diffraction phenomenon may affect the clarity or resolution of the image.

[0107] According to one embodiment, in order to transmit an image and / or video from a wearable electronic device (101) to an eye (E), light transmitted from a light output module (402) may be diffracted within an image combiner (410), and the diffracted light may be transmitted to the eye (E). At this time, changes in the wavelength and / or intensity of the light transmitted in the direction of the eye (E) through the image combiner (410) may be monitored in real time and compensated for. In order to monitor changes in the wavelength and / or intensity of the light transmitted in the direction of the eye (E) in real time, the wavelength and / or intensity of the light transmitted in the direction opposite to the direction of the eye may be monitored in real time.

[0108] A wearable electronic device (101) is a device that transmits light output from a light output module (402) to the eye (E) via an image combiner (410), and the image quality may degrade due to user use. According to one embodiment, the image quality of the wearable electronic device (101) may also degrade due to the surrounding environment (e.g., ambient light, temperature and humidity, or magnetic field, etc.). In this case, to compensate for the image quality degrade, a temperature sensor inside the aforementioned light output module (402) may be included, but it may be difficult to monitor in real time the change in wavelength and / or intensity of the light output from the light output module (420) using only the temperature sensor. For example, it may be difficult to detect changes in the wavelength and / or intensity of the light related to damage to the internal components of the image combiner (410), which may occur due to the accumulation of micro-impacts or changes in the optical axis alignment state caused by instantaneous impacts as the wearable electronic device (101) is used for an increased amount of time.

[0109] According to one embodiment, the image combiner (410) may be formed to extend in a first direction (e.g., +X-axis direction) (D1) and a second direction (e.g., -X-axis direction) (D2). In the present disclosure and the embodiments below, the image combiner (410) is described as being formed to extend in a single straight direction, but is not limited thereto. The image combiner (410) may be formed to extend in a plurality of non-parallel straight directions, for example, as the image combiner (410) of FIGS. 6 to 8, provided that light output from the light output module (402) can be transmitted to the eye (E). For example, the image combiner (410) may be formed to extend in a curved shape.

[0110] According to one embodiment, the first direction (D1) may mean a direction substantially parallel to the average direction of the directions of light that are diffracted and propagated from the first diffraction element (4102) and / or the aforementioned first wave guide (e.g., the first wave guide (411) of FIG. 7) above, so that light output from the light output module (402) is transmitted to the eye (E). According to one embodiment, the first direction (D1) may mean the direction in which light output from the light output module (402) is diffracted from the first diffraction element (4102) and directed toward the eye (E) after being input to the image combiner (410). According to one embodiment, the first direction (D1) may be a direction substantially parallel to the length direction of the image combiner (410) among the directions of light diffracted from the first diffraction element (4102) and / or the aforementioned first wave guide (e.g., the first wave guide (411) of FIG. 7) so that light output from the light output module (402) is transmitted to the eye (E). According to one embodiment, the first direction (D1) may mean a direction from the first diffraction element (4102) toward the second diffraction element (4103) and a direction from the second diffraction element (4103) toward the third diffraction element (4104).

[0111] According to one embodiment, the second direction (D2) may mean a direction opposite to the first direction (D1). According to one embodiment, the second direction (D2) may mean a direction from the third diffraction element (4104) toward the second diffraction element (4103), or a direction from the second diffraction element (4103) toward the first diffraction element (4102). According to one embodiment, the second direction (D2) may mean a direction other than the first direction (D1) in which the field of view is not obstructed when the eye (E) recognizes a real object (e.g., the real object (21) of FIG. 1 described above) even if a sensor (420) and / or an optical member (430), etc., are additionally placed in the second direction (D2). For example, the second direction (D2) may mean a direction that forms an angle of about 90 degrees to about 270 degrees with the first direction (D1).

[0112] In the present disclosure and the embodiments below, the first direction (D1) and the second direction (D2) are described as directions substantially parallel to the X-axis direction, but are not limited thereto. For example, as described above, the image combiner (410) may be formed to extend in a plurality of non-parallel straight directions or to extend in a curved shape, and in such cases, depending on the shape of the image combiner (410), the first direction (D1) and the second direction (D2) may mean various directions.

[0113] According to one embodiment, the area within the internal space of the image combiner (410) that guides light output from the light output module (402) to be transmitted to the eye may be referred to as the first area (A1). According to one embodiment, the first area (A1) may refer to the space where light diffracted from the first diffraction element (4102) is guided to be transmitted to the eye. According to one embodiment, the first area (A1) may refer to the area within the internal space of the image combiner (410) that extends from the first diffraction element (4102) toward the first direction (D1). According to one embodiment, the first area (A1) may refer to the space within the internal space of the image combiner (410) that comes into the field of view when the eye (E) recognizes a real object (e.g., the real object (21) of FIG. 1 described above). According to one embodiment, the first region (A1) may be a region corresponding to the internal space of the aforementioned first wave guide (411), second wave guide (412, 413) and display region (414). According to one embodiment, the first region (A1) may be a region where the first optical path (P1), second optical path (P2), third optical path (P3) and fourth optical path (P4) are formed.

[0114] According to one embodiment, when a sensor (420) and / or an optical member (430), etc. are additionally placed in the first area (A1), the field of view may be obstructed when the eye (E) recognizes a real object (e.g., the real object (21) of FIG. 1 described above).

[0115] According to one embodiment, the first region (A1) is configured such that light output from the light output module (402) is reflected inside the image combiner (410), and the first-third region (A13) is configured such that light diffracted from the third diffraction element (4104) is transmitted to the eye (E). It may include a first-second region (A12) disposed between the first-first region (A11) and the first-third region (A13) and transmitting light to the first-third region (A13).

[0116] According to one embodiment, in the 1-1 region (A11), the critical angle (θ c Because light is incident beyond ) total reflection, total reflection can occur in which all of the light is reflected inside the image combiner (410). For example, because light is totally reflected in the first-1 region (A11), light diffracted from the first diffraction element (4102) can be transmitted to the first-2 region (A12) with substantially no loss. According to one embodiment, the first-1 region (A11) may be named the 'total reflection region'.

[0117] According to one embodiment, a second diffraction element (4103) may be further disposed in the first-2 region (A12). The first-2 region (A12) may guide light transmitted from the first-1 region (A11) to the first-3 region (A13). According to one embodiment, the first-2 region (A12) may be named an 'extended region'.

[0118] According to one embodiment, a third diffraction element (4104) may be further disposed in the first-third region (A13). According to one embodiment, the first-third region (A13) may be named an 'output region'.

[0119] According to one embodiment, the area within the internal space of the image combiner (410) excluding the first area (A1) may be referred to as the second area (A2). According to one embodiment, the second area (A2) may refer to the area within the internal space of the image combiner (410) where light output from the light output module (402) is input into the image combiner (410) and the area formed to extend so that light diffracted from the first diffraction element (4102) is diffracted in the second direction (D2). According to one embodiment, the second area (A2) may refer to the area within the internal space of the image combiner (410) that does not enter the field of view when the eye (E) recognizes a real object (e.g., the real object (21) of FIG. 1 described above). According to one embodiment, the second area (A2) may be the area where the fifth light path (P5) is formed. According to one embodiment, the second region (A2) may be located at a position corresponding to the temple of the wearable electronic device (101).

[0120] According to one embodiment, the second region (A2) may include a second-1 region (A21), which is a region where light output from the light output module (402) is input to the image combiner (410), and a second-2 region (A22) that is extended to allow light diffracted from the first diffraction element (4102) to proceed toward the second direction (D2).

[0121] According to one embodiment, a first diffraction element (4102) may be disposed in the second-1 region (A21). For example, the second-1 region (A21) may be named an 'input region'.

[0122] According to one embodiment, the sensor (420) may be placed in a space corresponding to the second area (A2). According to one embodiment, even if the sensor (420) and / or optical member (430), etc. are additionally placed in the second area (A2), the field of view may not be obstructed when the eye (E) recognizes a real object (e.g., the real object (21) of FIG. 1 described above).

[0123] In the present disclosure and the embodiments below, the first region (A1) and the second region (A2) are described as being formed by extending in the X-axis direction substantially parallel to the image combiner direction, but they may have various shapes as described above in the description regarding the first direction (D1) and the second direction (D2).

[0124] According to one embodiment, a surface on the outer surface of the image combiner (410) that is formed extending in the longitudinal direction of the image combiner (410) and positioned adjacent to the light output module (402) and / or eye (E) may be referred to as a first surface (4101a). For example, a surface on the outer surface of the image combiner (410) that is formed extending in the longitudinal direction of the image combiner and facing the first surface (4101a) may be referred to as a second surface (4101b). According to one embodiment, the second surface (4101b) may be formed further apart from the light output module (402) and / or eye (E) than the first surface (4101a).

[0125] According to one embodiment, the image combiner (410) may include a first diffraction element (4102), a second diffraction element (4103), and / or a third diffraction element (4104). For example, the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) may be formed in a grating-shaped pattern. For example, the length of one of the grating-shaped patterns of the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) may be shorter than the wavelength of the light output from the light output module (402). For example, depending on the characteristics of the grid shape, such as the length of one of the grid patterns, the diffraction angle of the light diffracted by the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) may be changed.

[0126] According to one embodiment, the first diffraction element (4102) can diffract light output from the light output module (402). Since the first diffraction element (4102) includes a grating-shaped pattern, after the light output from the light output module (402) travels to the first diffraction element (4102), it can be diffracted by the first diffraction element (4102). According to one embodiment, the light diffracted from the first diffraction element (4102) can travel in a first direction (D1) and / or a second direction (D2). According to one embodiment, the first diffraction element (4102) can receive light output from the light output module (420) as input and transmit the light to a first region (A1) and / or a second region (A22). According to one embodiment, the first diffraction element (4102) may be configured to receive light output from the light output module (420) and allow the light to travel along the second and third light paths (P2, P3) and / or the fifth light path (P5). However, the more light traveling in the first direction (D1) among the light diffracted by the first diffraction element (4102), the more efficient the wearable electronic device (101) may be.

[0127] According to one embodiment, the second diffraction element (4103) can transmit light transmitted from the first diffraction element (4102) to the third diffraction element (4104). According to one embodiment, the second diffraction element (4103) can transmit light transmitted from the first-1 region (A11) to the first-3 region (A13) by total reflection.

[0128] According to one embodiment, the second diffraction element (4103) may be formed spaced apart from the first diffraction element (4102) in a first direction (D1) and spaced apart from the third diffraction element (4104) in a second direction (D2).

[0129] According to one embodiment, the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) may be positioned in contact with the second surface (4101b) of the inner surface of the image combiner (410). In the illustration and the following embodiments, the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) are described as being positioned in contact with the second surface (4101b), but are not limited thereto. For example, the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) may be positioned in the internal space of the image combiner (410) and may be positioned in various locations as long as they can diffract light and guide it to the eye (E).

[0130] According to one embodiment, an inclined surface (S) may be formed at a position corresponding to the second-2 region (A22) of the image combiner (410). According to one embodiment, an inclined surface (S) may be formed on the first surface (4101a). For example, the inclined surface (S) may include a first inclined surface (S1) and a second inclined surface (S2), and the first inclined surface (S1) and the second inclined surface (S2) may be formed to form a V-shaped groove.

[0131] In FIGS. 9 to 12, the first inclined surface (S1) and the second inclined surface (S2) are shown as forming a V-shaped groove and are formed at a position corresponding to the second-2 region (A22), but this is not limited thereto. As shown in FIG. 13, which will be described later, they may be formed as a single inclined surface (S) without forming a V-shaped groove. For example, as shown in FIG. 14, which will be described later, they may be formed at a position corresponding to the second-3 region (A23). Additionally, the inclined surface (S) may be formed as three or more inclined surfaces (S).

[0132] In this description, an inclined surface (S) is formed on the first surface (4101a) of the image combiner (410) as an example, but is not limited thereto, and the inclined surface (S) may be formed on at least a part of the second surface (4101b) or on one end of the image combiner (410) as shown in FIG. 13, which will be described later. According to one embodiment, if a sensor (420) positioned corresponding to the inclined surface (S) can monitor the intensity and / or wavelength of light diffracted from the first diffraction element (4102), the inclined surface (S) may be formed in various shapes.

[0133] According to one embodiment, the wearable electronic device (101) may include a sensor (420). According to one embodiment, the sensor (420) may be a sensor (420) for monitoring in real time the intensity and / or wavelength of light diffracted in a second direction (D2) among the light diffracted from the first diffracting element (4102). According to one embodiment, the sensor (420) may be a sensor (420) for monitoring in real time the intensity and / or wavelength of light diffracted into a second region (A2) among the light diffracted from the first diffracting element (4102). According to one embodiment, the sensor (420) may be a sensor (420) for monitoring in real time the intensity and / or wavelength of light transmitted along a fifth light path (P5) among the light diffracted from the first diffracting element (4102).

[0134] In this city, the sensor (420) is exemplified as being placed at a position corresponding to the inclined surface (S), but is not limited thereto. For example, the sensor (420) may be placed on the second surface (4101b), such as the sensor described later (e.g., sensor (420b) of FIG. 14), or may not be placed on the inclined surface (S). The sensor (420) may be formed at various locations as long as it does not obstruct the user's view while monitoring in real time the intensity and / or wavelength of light diffracted from the first diffraction element (4102) in the second direction (D2).

[0135] The sensor (420) can receive different signals depending on the intensity of light. Accordingly, the sensor can convert the input signal into an electrical signal corresponding to the input signal in order to transmit the input signal, which is input differently depending on the change in light intensity, to the processor (120). The sensor (420) can sense in real time the intensity and / or wavelength of light diffracted in the second direction (D2) by the first diffraction element (4102) in the image combiner (410). The processor (120) can check the current value corresponding to the light detected by the sensor (420) and, based on the checked current value, determine an error value for the intensity and / or wavelength of light output from the light output module (402). For example, the error value calculated by the processor (120) can be stored in memory (130) in real time.

[0136] According to one embodiment, instructions may be stored in a memory (130), and instructions stored in the memory (130) may be executed individually or collectively by at least one processor (120). At this time, the instructions may be configured to identify information related to light detected by a sensor (420), and based on the identified information, to change the light output from the light output module (402) in order to compensate for the difference between the information regarding the light output from the light output module (402) and the identified information.

[0137] According to one embodiment, the instruction can determine a current value corresponding to the light detected by the sensor (420) and, based on the determined current value, determine an error value for the intensity and / or wavelength of the light output from the light output module (402). For example, the instruction can be configured to output compensated light through the light output module (402) based on the determined error value. In one embodiment, the user can choose, depending on the input, to output the compensated light according to the compensation result, or to output the light output through the light output module (402) before the compensation is performed.

[0138] In the present disclosure and the embodiments below, the sensor (420) is described as being connected to the processor (120) to change information regarding light output from the light output module (402), but a control unit may be formed inside the light output module (402), and the sensor (402) may be directly connected to the control unit inside the light output module (402) to change the light output from the light output module (402).

[0139] The sensor (420) may be, for example, a photodetector, a CMOS sensor, or a camera sensor. A photodetector is a sensor that detects light used in an optical system and can generally detect infrared, ultraviolet, or visible light. A photodetector can be used to detect signals in, for example, optical communication or laser systems. A CMOS sensor is an image sensor that is mainly used in digital cameras and smartphones, and is an abbreviation for "Complementary Metal-Oxide-Semiconductor." Because CMOS sensors have low power consumption, provide fast read speeds, and have high compatibility with integrated circuits, they can be used in many mobile devices. For example, a camera sensor may be a sensor that refers to a CMOS sensor and a CCD sensor (Charge-Coupled Device).

[0140] Referring to FIG. 12, light diffracted from the first diffraction element (4102) can be transmitted to the aforementioned first-1 region (e.g., the first-1 region (A11) in FIG. 9). At this time, in order for the light diffracted from the first diffraction element (4102) to be transmitted to the eye (E) within the image combiner (410) with substantially no loss, it may be desirable for total internal reflection to occur in the first-1 region (A11). For total internal reflection to occur in the first-1 region (A11), when light travels in the first-1 region (A11), the angle between the direction perpendicular to the first direction (D1) and the direction of light travel is a critical angle (critical angle, C It must be greater than )

[0141] At this time, the critical angle can be determined by the refractive index of the image combiner (410) and the refractive index of air. The refractive index of the image combiner (410) is n waveguide , the refractive index of air is n air , critical angle C When referred to as such, the critical angle is

[0142] C = (n air / n waveguide )

[0143] It can be calculated as shown in the above formula.

[0144] For example, n air When is assumed to be 1.0, which is the refractive index of air in a vacuum, the various refractive indices n of the image combiner (410) waveguide Critical angle according to ( C The size of ) is as shown in the following table.

[0145] n air n waveguide C (degree)1.01.541.81.638.61.7361.833.71.931.72.030

[0146] Referring to this table, the critical angle ( C ) decreases as the refractive index of the image combiner (410) increases. For example, based on the refractive index of the image combiner (410) being 2.0, the critical angle (θ c The angle may be 30 degrees, and total internal reflection may occur in the first-1 region (a11) when the angle between the direction of light propagation and the direction perpendicular to the first direction is 30 degrees or more. Referring to FIG. 12, light diffracted in the second direction from the first diffraction member (4102) may proceed to the first inclined surface (S1). At this time, in order to detect light at the sensor (420) formed at a position corresponding to the first inclined surface (S1), at least a portion of the light diffracted toward the first inclined surface (S1) must not be total internally reflected at the first inclined surface (S1).

[0147] For example, based on the refractive index of the image combiner (410) being 2.0, the angle between the direction of propagation of at least a portion of the light diffracted from the first diffraction member (4102) in the second direction and the inclined surface (S1) must be 30 degrees or less. At this time, the inclination angle of the first inclined surface (S1) s ) can be configured such that the angle between the direction of travel of at least one part of the light diffracted from the first diffraction member (4102) in the second direction and the first inclined surface (S1) is formed to be 30 degrees or less.

[0148] FIG. 13 is a drawing showing an image combiner according to one embodiment of the present disclosure. FIG. 14 is a drawing showing an image combiner according to one embodiment of the present disclosure. FIG. 15 is a drawing showing an image combiner according to one embodiment of the present disclosure.

[0149] The components described with reference to FIGS. 13 to 15 may be partially or entirely identical to the components described with reference to FIGS. 1 to 12. The components described with reference to FIGS. 13 to 15 may be partially or entirely identical to the components described with reference to FIG. 16.

[0150] Referring to FIG. 13, one end of the image combiner (410) toward the second direction (D2) may be configured to be inclined toward the second direction (D2). For example, a sensor (420) may be placed at a position corresponding to the one end toward the second direction (D2).

[0151] According to one embodiment, light diffracted from the first diffraction element (4102) and traveling in the second direction (D2) can be detected by the sensor (420). For example, light traveling in the second direction (D2) may be totally reflected in the second-2 region (A22) before being detected by the sensor (420) in order to prevent light loss inside the image combiner (410), and may be transmitted to one end in the second direction (D2) and detected by the sensor (420).

[0152] In the present disclosure and the embodiments below, the light diffracted from the first diffraction element (4102) is described as undergoing total reflection in the second-2 region (A22) before being detected by the sensor (420), but is not limited thereto, and may be formed in a shape that does not undergo total reflection if the sensor (420) can recognize information regarding the light, such as the intensity and / or wavelength of the light output from the light output module (402).

[0153] Referring to FIGS. 14 and 15, the sensor (420b) may be additionally placed on the second surface (4101b). According to one embodiment, the sensor (420b) may be placed at a position corresponding to the first diffraction element (4102).

[0154] If a sensor (420b) is positioned at a location corresponding to the first diffraction element (4102), and at least a portion of the light transmitted to the first diffraction element (4102) passes through the first diffraction element (4102) and the second surface (4101b) of the image combiner (410) and can be detected by the sensor (420b), it may be easy to monitor the intensity and / or wavelength of the light output from the light output module (402) in real time.

[0155] Referring to FIG. 15, if the intensity and / or wavelength of light output from the light output module (402) can be monitored in real time by a sensor (420b) placed at a position corresponding to the first diffraction element (4102), additionally, the sensor (420) may not be placed in the second-2 region.

[0156] In the present disclosure and the embodiments below, the second diffraction element (4103) and the first-second region (A12), which is the space in which the second diffraction element (4103) is placed, are not shown, but are not limited thereto, and may include the second diffraction element (4103) and the second diffraction element (4103) and the first-second region (A12), which is the space in which the second diffraction element (4103) is placed, as shown in FIG. 9 above.

[0157] FIG. 16 is a drawing showing an image combiner according to one embodiment of the present disclosure.

[0158] The components described with reference to FIG. 16 may be all or partly identical to the components described with reference to FIG. 1 to FIG. 15.

[0159] Referring to FIG. 16, an additional optical member (430) may be formed at one end of the image combiner (410) in the second direction (D2). According to one embodiment, the optical member (430) may mean a prism and / or a transparent optical component (e.g., a mirror) having a prism and / or a prism and a reflective surface. According to one embodiment, the optical member (430) may be formed on one side of the second-2 region (A22). The optical member (430) may allow light to be totally reflected in the second-2 region (A22) as described above in FIG. 15, and the totally reflected light may be transmitted into the optical member (430).

[0160] Light transmitted into the optical member (430) by total reflection in the 2-2 region (A22) can also be total reflected within the optical member (430) to minimize light loss. For example, light total reflected within the optical member (430) can be transmitted to a sensor (420) positioned to correspond to at least one part of the optical member (430).

[0161] According to one embodiment, the optical member (430) is exemplified as being formed in the second-2 region (A22), but is not limited thereto. For example, the optical member (430) may be formed at various locations so as not to obstruct the field of view when the eye (E) perceives a real object (e.g., the real object (21) of FIG. 1 described above) through the optical member (430).

[0162] The present disclosure relates to a wearable electronic device. According to one embodiment of the present disclosure, in a wearable electronic device (101), a light output module (402) configured to output light; an image combiner (410) configured to transmit light output from the light output module (402) to the user's eye (E) when the user wears the wearable electronic device, wherein the image combiner (410) includes a first region (A1) configured to guide the light to be transmitted to the eye within the internal space of the image combiner (410), and a second region (A2) within the internal space of the image combiner (410) excluding the first region (A1), and a first diffraction element (4102) configured to receive the light output from the light output module (402) and transmit it in a first direction (D1) which is a direction toward the first region (A1) or a second direction (D2) which is opposite to the first direction and is a direction toward the second region (A2), and the An image combiner (410) comprising a third diffraction element (4104) formed spaced apart from a first diffraction element (4102) in the first direction (D1) and configured to transmit the light to the user's eye (E), and a first inclined surface (S1) configured to be inclined with respect to the first direction (D1) at a position corresponding to the second region (A2); a sensor (420) disposed on the first inclined surface (S1) and configured to detect light diffracted from the first diffraction element (4102) in the second direction (D2); at least one processor (120) and a memory (130) operatively connected to the light output module (402) and / or the sensor (420), wherein the memory (130) enables the wearable electronic device (101) to be operated by the sensor (420) when executed individually or collectively by the at least one processor (120). Identifying information related to the detected light, and based on the information related to the light detected by the sensor,A wearable electronic device may be provided that stores instructions for controlling the light output from the light output module (402) in order to compensate for the difference between information about the light output from the light output module (402) and information related to the light detected by the sensor.

[0163] According to one embodiment, the light output module (402) is configured to output light in a direction substantially perpendicular to the image combiner (410), the first region (A1) and the second region (A2) of the image combiner (410) are distinguished based on a position corresponding to the light output module (402) in the image combiner (410), and the first direction (D1) is a direction substantially parallel to the length direction of the image combiner (410), and the device may be a wearable electronic device.

[0164] According to one embodiment, the first region (A1) may be a wearable electronic device comprising a first-1 region (A11) configured so that light output from the light output module (402) is reflected inside the image combiner (410), a first-3 region (A13) configured so that light diffracted from the third diffraction element (4104) is transmitted to the user's eye (E), and a first-2 region (A12) disposed between the first-1 region (A11) and the first-3 region (A13).

[0165] According to one embodiment, the wearable electronic device may include a second diffraction element (4103) disposed between the first diffraction element (4102) and the third diffraction element (4104) and disposed in the first-second region (A12).

[0166] According to one embodiment, the image combiner (410) may be a wearable electronic device that includes a first surface (4101a) formed extending in the longitudinal direction of the image combiner (410) and disposed adjacent to the light output module (402), and a second surface (4101b) formed extending in the longitudinal direction of the image combiner (410) and facing the first surface (4101a), and the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) are formed on the second surface (4101b).

[0167] According to one embodiment, the inclined surface (S1) may be a wearable electronic device formed on a first surface (4101a).

[0168] According to one embodiment, the wearable electronic device may be such that the angle between the inclined surface (S1) and the direction of propagation of light diffracted from the first diffraction member (4102) in the second direction (D2) is 30 degrees or less.

[0169] According to one embodiment, the wearable electronic device may further include a sensor (420b) disposed on the second surface (4101b).

[0170] According to one embodiment, the sensor (420b) may be a wearable electronic device positioned at a location corresponding to the first diffraction element (4102) of the second surface (4101b).

[0171] According to one embodiment, the wearable electronic device may further include an optical member (430) positioned so as to extend at least a portion of the second region (A2) of the image combiner (410), and a sensor (420) positioned at a location corresponding to the optical member (430).

[0172] According to one embodiment, the inclined surface (S1) may be a wearable electronic device formed on a second surface (4101b).

[0173] According to one embodiment, the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) are configured as a grating-shaped pattern, and the length of one of the gratings in the grating-shaped pattern is shorter than the wavelength of the light output from the light output module (402), and the device may be a wearable electronic device.

[0174] According to one embodiment, the sensor (420) may be a wearable electronic device, such as a photodetector or a CMOS sensor.

[0175] According to one embodiment, the instruction stored in the memory (130) may be a wearable electronic device (101) configured such that, when executed individually or collectively by the at least one processor (120), the wearable electronic device (101) identifies a current value corresponding to light detected by the sensor (420), determines a wavelength error value of light output from the light output module (402) based on the identified current value, and outputs compensated light through the light output module (402) based on the wavelength error value.

[0176] According to one embodiment, the instruction stored in the memory (130) may be a wearable electronic device (101) configured to: compensate for a wavelength error value of light output from a light output module (402) based on the identified current value, and, based on user input, output the compensated light from the light output module (402) according to the compensation result, or output light restored to the state prior to the compensation from the light output module (402).

[0177] The present disclosure relates to a wearable electronic device. According to one embodiment of the present disclosure, a wearable electronic device (101) comprises a light output module (402) configured to output light, and an image combiner (410) configured to transmit light output from the light output module (402) to the user's eye (E) when the user wears the wearable electronic device, wherein the image combiner (410) includes a first region (A1) within its internal space that guides the light to be transmitted to the eye, and a second region (A2) within its internal space excluding the first region (A1), and is configured to receive light output from the light output module (402) and transmit it in a first direction (D1) which is directed toward the first region (A1) and substantially parallel to the image combiner (410), or in a second direction (D2) which is opposite to the first direction and directed toward the second region (A2). An image combiner (410) comprising a first diffraction element (4102), a third diffraction element (4104) formed spaced apart from the first diffraction element (4102) in the first direction (D1) and configured to transmit the light to the user's eye (E), and a second diffraction element (4103) disposed between the first diffraction element (4102) and the third diffraction element (4104), and comprising an inclined surface (S1) configured to be inclined toward the first direction (D1) at a position corresponding to the second region (A2); a sensor (420) disposed on the inclined surface (S1) and configured to detect light diffracted from the first diffraction element (4102) in the second direction (D2); at least one processor (120) and a memory (130) operatively connected to the light output module (402) and / or the sensor (420). When the memory (130) is executed individually or collectively by the at least one processor (120),A wearable electronic device may be provided that stores instructions for the wearable electronic device (101) to: identify information related to light detected by the sensor (420), and, based on the information related to light detected by the sensor, control the light output from the light output module (402) to compensate for the difference between the information regarding the light output from the light output module (402) and the information related to the light detected by the sensor.

[0178] According to one embodiment, the image combiner (410) may be a wearable electronic device that includes a first surface (4101a) formed extending in the longitudinal direction of the image combiner (410) and positioned adjacent to the light output module (402), and a second surface (4101b) formed extending in the longitudinal direction of the image combiner (410) and facing the first surface (4101a), wherein the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) are formed on the second surface (4101b), and the inclined surface (S1) is formed on the first surface (4101a).

[0179] According to one embodiment, the instruction stored in the memory (130) may be a wearable electronic device configured such that, when executed individually or collectively by the at least one processor (120), the wearable electronic device (101) determines a current value corresponding to the amount of light detected by the sensor (420), determines a wavelength error value of the light output from the light output module (402) based on the determined current value, and outputs compensated light through the light output module (402) based on the wavelength error value.

[0180] The present disclosure relates to a wearable electronic device. According to one embodiment of the present disclosure, in a wearable electronic device (101), a light output module (402) configured to output light; an image combiner (410) configured to transmit light output from the light output module (402) to the user's eye (E) when the user wears the wearable electronic device, wherein the image combiner (410) includes a first region (A1) within the internal space of the image combiner (410) that guides the light to be transmitted to the eye, and a second region (A2) within the internal space of the image combiner (410) excluding the first region (A1), and a first diffraction element (4102) configured to receive the light output from the light output module (402) and transmit it in a first direction (D1) which is a direction toward the first region (A1) or a second direction (D2) which is opposite to the first direction and is a direction toward the second region (A2), and the first A wearable electronic device may be provided, comprising an image combiner (410) including a third diffraction element (4104) formed spaced apart from a diffraction element (4102) in the first direction (D1) and configured to transmit the light to the user's eye (E), and an inclined surface (S1) configured to be inclined with respect to the first direction (D1) at a position corresponding to the second region (A2), and a sensor (420) disposed on the inclined surface (S1) and configured to detect light diffracted from the first diffraction element (4102) in the second direction (D2).

[0181] According to one embodiment, the device may be a wearable electronic device comprising a second diffraction element (4103) disposed between the first diffraction element (4102) and the third diffraction element (4104), wherein the image combiner (410) is formed extending in the longitudinal direction of the image combiner (410) and includes a first surface (4101a) disposed adjacent to the light output module (402) and a second surface (4101b) formed extending in the longitudinal direction of the image combiner (410) and facing the first surface (4101a), wherein the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) are formed on the second surface (4101b), and the inclined surface (S1) is formed on the first surface (4101a).

[0182] According to one embodiment, the wearable electronic device (101) can provide an electronic device capable of monitoring optical axis alignment errors and light source output changes that may occur due to external impact while being worn by a user in real time through a sensor (420). As a result, image quality degradation affecting the user can be quickly identified.

[0183] According to one embodiment, a wearable electronic device (101) may place a sensor (420) in a second direction (D2) opposite to a first direction (D1) which is the direction toward the eye among the light output from a light output module (402), so as to detect optical axis alignment errors and light source output changes of the output light without obstructing the field of vision. For example, it may be placed in a position that is difficult for others to perceive visually.

[0184] According to one embodiment, the wearable electronic device (101) may be a wearable electronic device (101) that provides a function to correct in real time the degradation of image quality that may occur due to the accumulation of external impacts or sudden strong impacts, thereby providing an optimal visual experience to the user.

[0185] The electronic device (101) described through the embodiment of the present disclosure described above is not limited by the aforementioned embodiment and drawings, and it will be obvious to those skilled in the art that various substitutions, modifications, and changes are possible within the technical scope of the present invention.

Claims

1. In a wearable electronic device (101), A light output module (402) configured to output light; An image combiner (410) configured to transmit light output from a light output module (402) to the user's eye (E) when the user wears a wearable electronic device, comprising: a first region (A1) configured to guide the light to be transmitted to the eye within the internal space of the image combiner (410); a second region (A2) within the internal space of the image combiner (410) excluding the first region (A1); a first diffraction element (4102) configured to receive the light output from the light output module (402) and transmit it in a first direction (D1) which is a direction toward the first region (A1) or a second direction (D2) which is opposite to the first direction and is a direction toward the second region (A2); and a first diffraction element (4102) formed spaced apart from the first diffraction element (4102) in the first direction (D1) and configured to transmit the light to the user's eye (E). An image combiner (410) comprising a configured third diffraction element (4104) and a first inclined surface (S1) configured to be inclined with respect to the first direction (D1) at a position corresponding to the second region (A2); A sensor (420) disposed on the first inclined surface (S1) and configured to detect light diffracted in a second direction (D2) from the first diffraction element (4102); At least one processor (120) operatively connected to the light output module (402) and / or the sensor (420); and Includes memory (130), When the memory (130) is executed individually or collectively by the at least one processor (120), the wearable electronic device (101) enables Identifying information related to light detected by the sensor (420), and A wearable electronic device that stores instructions for controlling light output from the light output module (402) to compensate for the difference between information about light output from the light output module (402) and information about light detected by the sensor, based on information related to light detected by the sensor.

2. In Paragraph 1, The light output module (402) is configured to output light in a direction substantially perpendicular to the image combiner (410), and The first region (A1) and the second region (A2) of the image combiner (410) are distinguished based on a position corresponding to the light output module (402) in the image combiner (410), and A wearable electronic device, wherein the first direction (D1) is substantially parallel to the longitudinal direction of the image combiner (410).

3. In Paragraph 1 or 2, The above first region (A1) is, A first-1 region (A11) configured so that light output from the light output module (402) is reflected inside the wave guide (420); A first-third region (A13) configured so that light diffracted from the third diffraction element (4104) is transmitted to the user's eye (E); A wearable electronic device comprising a first-2 region (A12) disposed between the first-1 region (A11) and the first-3 region (A13).

4. In any one of paragraphs 1 to 3, A wearable electronic device comprising a second diffraction element (4103) disposed between the first diffraction element (4102) and the third diffraction element (4104) and disposed in the first-second region (A12).

5. In any one of paragraphs 1 to 4, The image combiner (410) is formed extending in the longitudinal direction of the image combiner (410) and includes a first surface (4101a) disposed adjacent to the optical output module (402) and a second surface (4101b) formed extending in the longitudinal direction of the image combiner (410) and facing the first surface (4101a). A wearable electronic device in which the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) are formed on the second surface (4101b).

6. In any one of paragraphs 1 to 5, The above inclined surface (S1) is formed on the first surface (4101a), a wearable electronic device.

7. In any one of paragraphs 1 through 6, A wearable electronic device in which the angle between the inclined surface (S1) and the direction of propagation of light diffracted in the second direction (D2) from the first diffraction member (4102) is 30 degrees or less.

8. In any one of paragraphs 1 through 7, A wearable electronic device further comprising a sensor (420b) disposed on the second surface (4101b).

9. In any one of paragraphs 1 through 8, The sensor (420b) is a wearable electronic device positioned at a location corresponding to the first diffraction element (4102) of the second surface (4101b).

10. In any one of paragraphs 1 through 9, It further includes an optical member (430) positioned so as to extend at least a portion of the second region (A2) of the image combiner (410), and A wearable electronic device further comprising a sensor (420) positioned at a location corresponding to the optical member (430).

11. In any one of paragraphs 1 through 10, The above inclined surface (S1) is formed on the second surface (4101b), a wearable electronic device.

12. In any one of paragraphs 1 to 11, The first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) are configured to have a grating-shaped pattern, and A wearable electronic device in which the length of one of the grating shapes of the first diffraction element (4102), the second diffraction element (4103), and the third diffraction element (4104) is shorter than the wavelength of the light output from the light output module (402).

13. In any one of paragraphs 1 through 12, The sensor (420) is a wearable electronic device, which is a photodetector or a CMOS sensor.

14. In any one of paragraphs 1 through 13, When the instructions stored in the memory (130) are executed individually or collectively by the at least one processor (120), the wearable electronic device (101) is: Identifying a current value corresponding to the light detected by the sensor (420), and Based on the identified current value, the wavelength error value of the light output from the light output module (402) is determined, and A wearable electronic device configured to output compensated light through the light output module (402) based on the above wavelength error value.

15. In any one of paragraphs 1 through 14, When the instructions stored in the memory (130) are executed individually or collectively by the at least one processor (120), the wearable electronic device (101) is: Based on the identified current value above, the wavelength error value of the light output from the light output module (402) is compensated, and A wearable electronic device configured to output the compensated light from the light output module (402) or output the light restored to the state prior to the compensation from the light output module (402) based on user input and according to the compensation result.

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