Projector device and electronic device comprising same

Abstract

Disclosed in an embodiment is a projector device comprising: a light guide; a substrate disposed to encompass the light guide; and a first connection substrate and a first lens disposed between the light guide and the substrate, wherein the substrate includes a lower substrate and a first side substrate bent from the lower substrate in the direction perpendicular to the lower substrate, and the first connection substrate is in contact with the first side substrate and the first lens.

Description

Project device and electronic device including same

[0001] The embodiment relates to a project device and an electronic device including the same.

[0002] Virtual Reality (VR) refers to a specific environment or situation, or the technology itself, that is similar to reality but not real, created using artificial technology such as computers.

[0003] Augmented Reality (AR) is a technology that synthesizes virtual objects or information into the real environment to make them appear as objects that exist in the original environment.

[0004] Mixed reality (MR) or hybrid reality refers to the creation of new environments or information by merging the virtual and real worlds. In particular, it refers to real-time interaction between real and virtual worlds.

[0005] At this time, the created virtual environments and situations stimulate the user's five senses, allowing them to experience spatial and temporal experiences similar to reality, freely moving between reality and imagination. Furthermore, users can not only immerse themselves in these environments, but also interact with the objects embodied within them, using real devices to control and command them.

[0006] Recently, active research has been conducted on the gear and devices used in these fields. However, the need for miniaturization and improved optical performance of these devices is emerging.

[0007] The embodiment provides a projector device and an electronic device including the same, which can improve light emission concentration by directly attaching a lens in front of a light source when using a projector device used for AR (Augmented Reality) and an electronic device including the same.

[0008] In addition, the space in which the light source is placed is reduced, providing a projector and electronic device that can be miniaturized more easily.

[0009] The problem to be solved in the embodiment is not limited to this, and it can be said that the purpose or effect that can be understood from the solution or embodiment of the problem described below is also included.

[0010] A project device according to an embodiment comprises: a light guide; a substrate arranged to surround the light guide; and a first connecting substrate and a first lens arranged between the light guide and the substrate; wherein the substrate includes a lower substrate and a first side substrate bent in a direction perpendicular to the lower substrate, and the first connecting substrate can be in contact with the first side substrate and the first lens.

[0011] The device further includes a first light source disposed on the first connecting substrate, wherein the first light source can be disposed between the first connecting substrate and the first lens.

[0012] The first side substrate is spaced apart from the light guide in a first direction, and the substrate may further include a second side substrate and a third side substrate spaced apart in a second direction perpendicular to the first direction.

[0013] It may further include a second connection substrate and a third connection substrate that are in contact with the second side substrate and the third side substrate, respectively.

[0014] It may further include a second light source and a third light source respectively disposed on the second connecting substrate and the third connecting substrate.

[0015] The first side substrate includes a first opening, and the first opening can overlap the first light source in the first direction.

[0016] The first side substrate may include a first concave portion and a second concave portion respectively disposed on two sides spaced apart from the first opening in the second direction.

[0017] The substrate may include a support substrate bent in an opposite direction from the first side substrate to the third side substrate from the lower substrate.

[0018] A connecting member is included that is arranged between the first side substrate and the first connection substrate, and the connecting member can overlap the first concave portion and the second concave portion in the first direction.

[0019] The second side substrate and the third side substrate are arranged in a direction perpendicular to the first side substrate and can overlap with the light guide in the second direction.

[0020] The lower substrate is spaced apart from the light guide in a third direction, and the third direction may be a direction perpendicular to the first direction and the second direction.

[0021] The first lens can be in contact with the first connecting substrate and the light guide.

[0022] The first light source may overlap the first lens in the second direction.

[0023] The width of the lower substrate in the second direction may be greater than the width of the light guide in the second direction.

[0024] The lower substrate may include a first extension portion extending in the first direction, a second extension portion extending in the second direction, and a third extension portion extending in the second direction.

[0025] The first extension portion may include a first sub-extension portion and a second sub-extension portion spaced apart in the second direction.

[0026] The first sub-extension portion and the second sub-extension portion may each be bent in a vertical direction and connected to the first side substrate.

[0027] According to an embodiment, when using a projector device used for AR (Augmented Reality) and an electronic device including the same, a projector device and an electronic device including the same can be provided that can improve light emission concentration by directly attaching a lens in front of a light source.

[0028] In addition, the space in which the light source is placed can be reduced, thereby providing a projector and electronic device that can be miniaturized more easily.

[0029] The various advantageous and beneficial effects of the present invention are not limited to the above-described contents, and will be more easily understood in the course of explaining specific embodiments of the present invention.

[0030] Figure 1 is a conceptual diagram showing an embodiment of an AI device,

[0031] FIG. 2 is a block diagram showing the configuration of an extended reality electronic device according to an embodiment of the present invention.

[0032] FIG. 3 is a perspective view of an augmented reality electronic device according to a first embodiment of the present invention;

[0033] Figures 4 to 6 are conceptual diagrams for explaining various display methods applicable to the display unit according to an embodiment of the present invention.

[0034] Fig. 7 is a perspective view of a project device according to one embodiment;

[0035] Figure 8 is an exploded perspective view of a project device according to one embodiment;

[0036] FIG. 9 is a perspective view of a barrel in a project device according to one embodiment;

[0037] Fig. 10 is a perspective view showing a state in which a lens, a light source, and a light guide are combined in a project device according to one embodiment.

[0038] Fig. 11 is a perspective view of a light source unit in a project device according to one embodiment;

[0039] Fig. 12 is a perspective view of a substrate in a project device according to one embodiment;

[0040] FIG. 13 is a perspective view showing a state in which a lens, a light source, a light guide, and a substrate are combined in a project device according to one embodiment.

[0041] FIG. 14 and FIG. 15 are side views showing a state in which a lens, a light source, a light guide, and a substrate are combined in a project device according to one embodiment.

[0042] Fig. 16 is a rear view showing a state in which a lens, a light source, a light guide, and a substrate are combined in a project device according to one embodiment.

[0043] Fig. 17 is a bottom view showing a state in which a lens, a light source, a light guide, and a substrate are combined in a project device according to one embodiment.

[0044] Fig. 18 is a cross-sectional view showing a cross section cut along line AA' in Fig. 13.

[0045] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0046] However, the technical idea of ​​the present invention is not limited to some of the embodiments described, but can be implemented in various different forms, and within the scope of the technical idea of ​​the present invention, one or more of the components between the embodiments can be selectively combined or substituted for use.

[0047] In addition, terms (including technical and scientific terms) used in the embodiments of the present invention may be interpreted as having a meaning that can be generally understood by a person of ordinary skill in the technical field to which the present invention belongs, unless explicitly and specifically defined and described, and terms that are commonly used, such as terms defined in a dictionary, may be interpreted in consideration of the contextual meaning of the relevant technology.

[0048] Additionally, the terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention.

[0049] In this specification, the singular may also include the plural unless specifically stated otherwise in the phrase, and when it is described as “A and / or at least one (or more) of B, C”, it may include one or more of all combinations that can be combined with A, B, C.

[0050] Additionally, in describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used.

[0051] These terms are intended only to distinguish one component from another, and are not intended to limit the nature, order, or sequence of the component.

[0052] And, when a component is described as being 'connected', 'coupled' or 'connected' to another component, it may include not only cases where the component is directly connected, coupled or connected to the other component, but also cases where the component is 'connected', 'coupled' or 'connected' by another component between the component and the other component.

[0053] Additionally, when described as being formed or arranged "above or below" each component, "above" or "below" includes not only cases where the two components are in direct contact with each other, but also cases where one or more other components are formed or arranged between the two components. Furthermore, when expressed as "above" or "below", it can include the meaning of a downward direction as well as an upward direction based on one component.

[0054] Figure 1 is a conceptual diagram illustrating an embodiment of an AI device.

[0055] Referring to FIG. 1, an AI system is connected to a cloud network (10) by at least one of an AI server (16), a robot (11), an autonomous vehicle (12), an XR device (13), a smartphone (14), or an appliance (15). Here, a robot (11), an autonomous vehicle (12), an XR device (13), a smartphone (14), or an appliance (15) to which AI technology is applied may be referred to as an AI device (11 to 15).

[0056] A cloud network (10) may refer to a network that constitutes part of a cloud computing infrastructure or exists within a cloud computing infrastructure. Here, the cloud network (10) may be configured using a 3G network, a 4G or LTE (Long Term Evolution) network, a 5G network, etc.

[0057] That is, each device (11 to 16) constituting the AI ​​system can be connected to each other through a cloud network (10). In particular, each device (11 to 16) can communicate with each other through a base station, but can also communicate with each other directly without going through a base station.

[0058] The AI ​​server (16) may include a server that performs AI processing and a server that performs operations on big data.

[0059] The AI ​​server (16) is connected to at least one of the AI ​​devices constituting the AI ​​system, such as a robot (11), an autonomous vehicle (12), an XR device (13), a smartphone (14), or a home appliance (15), through a cloud network (10), and can assist at least part of the AI ​​processing of the connected AI devices (11 to 15).

[0060] At this time, the AI ​​server (16) can train an artificial neural network according to a machine learning algorithm on behalf of the AI ​​devices (11 to 15), and can directly store the learning model or transmit it to the AI ​​devices (11 to 15).

[0061] At this time, the AI ​​server (16) can receive input data from the AI ​​devices (11 to 15), infer a result value for the received input data using a learning model, and generate a response or control command based on the inferred result value and transmit it to the AI ​​devices (11 to 15).

[0062] Alternatively, the AI ​​device (11 to 15) may infer a result value for input data using a direct learning model and generate a response or control command based on the inferred result value.

[0063] <AI+로봇>

[0064] Robots (11) can be implemented as guide robots, transport robots, cleaning robots, wearable robots, entertainment robots, pet robots, unmanned flying robots, etc. by applying AI technology.

[0065] The robot (11) may include a robot control module for controlling movement, and the robot control module may mean a software module or a chip that implements the same as hardware.

[0066] The robot (11) can obtain status information of the robot (11), detect (recognize) the surrounding environment and objects, generate map data, determine a movement path and driving plan, determine a response to user interaction, or determine an action using sensor information obtained from various types of sensors.

[0067] Here, the robot (11) can use sensor information acquired from at least one sensor among lidar, radar, and camera to determine a movement path and driving plan.

[0068] The robot (11) can perform the above-described operations using a learning model comprised of at least one artificial neural network. For example, the robot (11) can recognize its surroundings and objects using the learning model, and determine operations using the recognized surrounding environment information or object information. Here, the learning model may be learned directly by the robot (11) or by an external device such as an AI server (16).

[0069] At this time, the robot (11) may perform an action by generating a result using a direct learning model, but it may also perform an action by transmitting sensor information to an external device such as an AI server (16) and receiving the result generated accordingly.

[0070] The robot (11) can determine a movement path and a driving plan using at least one of map data, object information detected from sensor information, or object information acquired from an external device, and control a driving unit to drive the robot (11) according to the determined movement path and driving plan.

[0071] Map data may include object identification information for various objects positioned in the space where the robot (11) moves. For example, map data may include object identification information for fixed objects such as walls and doors, as well as movable objects such as flower pots and desks. Furthermore, object identification information may include name, type, distance, location, etc.

[0072] Additionally, the robot (11) can perform actions or drive by controlling the driving unit based on the user's control / interaction. At this time, the robot (11) can acquire intention information regarding the interaction based on the user's actions or voice utterances, and determine a response based on the acquired intention information to perform the action.

[0073] <AI+자율주행>

[0074] Autonomous vehicles (12) can be implemented as mobile robots, vehicles, unmanned aerial vehicles, etc. by applying AI technology.

[0075] An autonomous vehicle (12) may include an autonomous driving control module for controlling autonomous driving functions. The autonomous driving control module may refer to a software module or a chip implementing the same as hardware. The autonomous driving control module may be included internally as a component of the autonomous vehicle (12), but may also be configured as separate hardware and connected to the exterior of the autonomous vehicle (12).

[0076] An autonomous vehicle (12) can obtain status information of the autonomous vehicle (12), detect (recognize) the surrounding environment and objects, generate map data, determine a movement path and driving plan, or determine an action by using sensor information obtained from various types of sensors.

[0077] Here, the autonomous vehicle (12) can use sensor information acquired from at least one sensor among lidar, radar, and camera, similar to the robot (11), to determine the movement path and driving plan.

[0078] In particular, an autonomous vehicle (12) can recognize an environment or object in an area where the field of vision is obscured or an area beyond a certain distance by receiving sensor information from external devices, or can receive information recognized directly from external devices.

[0079] An autonomous vehicle (12) can perform the above-described operations using a learning model comprised of at least one artificial neural network. For example, the autonomous vehicle (12) can recognize its surroundings and objects using the learning model, and determine a driving route using the recognized surrounding environment information or object information. Here, the learning model may be learned directly by the autonomous vehicle (12) or by an external device such as an AI server (16).

[0080] At this time, the autonomous vehicle (12) may perform an action by generating a result using a direct learning model, but may also perform an action by transmitting sensor information to an external device such as an AI server (16) and receiving the result generated accordingly.

[0081] An autonomous vehicle (12) can determine a movement path and a driving plan using at least one of map data, object information detected from sensor information, or object information acquired from an external device, and control a driving unit to drive the autonomous vehicle (12) according to the determined movement path and driving plan.

[0082] Map data may include object identification information for various objects located in the space (e.g., road) where the autonomous vehicle (12) travels. For example, map data may include object identification information for fixed objects such as streetlights, rocks, and buildings, as well as movable objects such as vehicles and pedestrians. Furthermore, object identification information may include name, type, distance, location, and the like.

[0083] Additionally, the autonomous vehicle (12) can perform actions or drive by controlling the driving unit based on the user's control / interaction. At this time, the autonomous vehicle (12) can acquire intention information regarding the interaction based on the user's actions or voice utterances, and determine a response based on the acquired intention information to perform the action.

[0084] <AI+XR>

[0085] The XR device (13) can be implemented as an HMD (Head-Mount Display), a HUD (Head-Up Display) equipped in a vehicle, a television, a mobile phone, a smart phone, a computer, a wearable device, a home appliance, digital signage, a vehicle, a fixed robot, or a mobile robot by applying AI technology.

[0086] The XR device (13) can obtain information about the surrounding space or real objects by analyzing 3D point cloud data or image data acquired through various sensors or from an external device to generate location data and attribute data for 3D points, and can render and output an XR object to be output. For example, the XR device (13) can output an XR object including additional information about a recognized object in correspondence with the recognized object.

[0087] The XR device (13) can perform the above-described operations using a learning model composed of at least one artificial neural network. For example, the XR device (13) can recognize a real-world object from 3D point cloud data or image data using the learning model, and provide information corresponding to the recognized real-world object. Here, the learning model may be learned directly in the XR device (13) or learned from an external device such as an AI server (16).

[0088] At this time, the XR device (13) may perform an action by generating a result using a direct learning model, but may also perform an action by transmitting sensor information to an external device such as an AI server (16) and receiving the result generated accordingly.

[0089] <AI+로봇+자율주행>

[0090] Robots (11) can be implemented as guide robots, transport robots, cleaning robots, wearable robots, entertainment robots, pet robots, unmanned flying robots, etc. by applying AI technology and autonomous driving technology.

[0091] A robot (11) to which AI technology and autonomous driving technology are applied may refer to a robot itself with autonomous driving functions, or a robot (11) that interacts with an autonomous vehicle (12).

[0092] A robot (11) with autonomous driving function can be a general term for devices that move on their own along a given path without user control or move by determining the path on their own.

[0093] A robot (11) and a self-driving vehicle (12) with autonomous driving capabilities may use a common sensing method to determine one or more of a movement path or a driving plan. For example, a robot (11) and a self-driving vehicle (12) with autonomous driving capabilities may use information sensed through lidar, radar, and cameras to determine one or more of a movement path or a driving plan.

[0094] A robot (11) interacting with an autonomous vehicle (12) may exist separately from the autonomous vehicle (12), and may be linked to autonomous driving functions inside or outside the autonomous vehicle (12), or may perform actions linked to a user riding in the autonomous vehicle (12).

[0095] At this time, the robot (11) interacting with the autonomous vehicle (12) can control or assist the autonomous driving function of the autonomous vehicle (12) by acquiring sensor information on behalf of the autonomous vehicle (12) and providing it to the autonomous vehicle (12), or by acquiring sensor information and generating surrounding environment information or object information and providing it to the autonomous vehicle (12).

[0096] Alternatively, a robot (11) interacting with an autonomous vehicle (12) may monitor a user riding in the autonomous vehicle (12) or control the functions of the autonomous vehicle (12) through interaction with the user. For example, if the robot (11) determines that the driver is drowsy, it may activate the autonomous driving function of the autonomous vehicle (12) or assist in controlling the driving unit of the autonomous vehicle (12). Here, the functions of the autonomous vehicle (12) controlled by the robot (11) may include not only the autonomous driving function, but also functions provided by a navigation system or audio system installed inside the autonomous vehicle (12).

[0097] Alternatively, a robot (11) interacting with an autonomous vehicle (12) may provide information to the autonomous vehicle (12) or assist functions from outside the autonomous vehicle (12). For example, the robot (11) may provide traffic information, including signal information, to the autonomous vehicle (12), such as a smart traffic light, or may interact with the autonomous vehicle (12) to automatically connect an electric charger to a charging port, such as an automatic electric charger for an electric vehicle.

[0098] <AI+로봇+XR>

[0099] Robots (11) can be implemented as guide robots, transport robots, cleaning robots, wearable robots, entertainment robots, pet robots, unmanned flying robots, drones, etc. by applying AI technology and XR technology.

[0100] A robot (11) to which XR technology is applied may refer to a robot that is the subject of control / interaction within an XR image. In this case, the robot (11) is distinct from the XR device (13) and can be linked with each other.

[0101] When a robot (11) that is the target of control / interaction within an XR image obtains sensor information from sensors including a camera, the robot (11) or the XR device (13) can generate an XR image based on the sensor information, and the XR device (13) can output the generated XR image. In addition, the robot (11) can operate based on a control signal input through the XR device (13) or a user's interaction.

[0102] For example, a user can check an XR image corresponding to the viewpoint of a remotely connected robot (11) through an external device such as an XR device (13), and through interaction, adjust the autonomous driving path of the robot (11), control the operation or driving, or check information on surrounding objects.

[0103] <AI+자율주행+XR>

[0104] Autonomous vehicles (12) can be implemented as mobile robots, vehicles, unmanned aerial vehicles, etc. by applying AI technology and XR technology.

[0105] An autonomous vehicle (12) to which XR technology is applied may refer to an autonomous vehicle equipped with a means for providing XR images, an autonomous vehicle that is the subject of control / interaction within an XR image, etc. In particular, an autonomous vehicle (12) that is the subject of control / interaction within an XR image is distinct from an XR device (13) and can be linked with each other.

[0106] An autonomous vehicle (12) equipped with a means for providing XR images can acquire sensor information from sensors including cameras and output XR images generated based on the acquired sensor information. For example, the autonomous vehicle (12) can be equipped with a HUD to output XR images, thereby providing passengers with XR objects corresponding to real objects or objects on the screen.

[0107] At this time, when the XR object is output to the HUD, at least a part of the XR object may be output so as to overlap with an actual object toward which the passenger's gaze is directed. On the other hand, when the XR object is output to a display provided inside the autonomous vehicle (12), at least a part of the XR object may be output so as to overlap with an object on the screen. For example, the autonomous vehicle (12) may output XR objects corresponding to objects such as a road, another vehicle, a traffic light, a traffic sign, a two-wheeled vehicle, a pedestrian, a building, etc.

[0108] When an autonomous vehicle (12) that is the target of control / interaction within an XR image acquires sensor information from sensors including a camera, the autonomous vehicle (12) or the XR device (13) generates an XR image based on the sensor information, and the XR device (13) can output the generated XR image. In addition, the autonomous vehicle (12) can operate based on a control signal input through an external device such as the XR device (13) or a user's interaction.

[0109] [Augmented Reality Technology]

[0110] Extended Reality (XR) is a general term for Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR). VR technology provides real-world objects and backgrounds only as CG images, AR technology provides virtual CG images on top of images of real objects, and MR technology is a computer graphics technology that provides virtual objects mixed and combined in the real world.

[0111] MR technology is similar to AR in that it presents both real and virtual objects simultaneously. However, while AR uses virtual objects to complement real objects, MR uses virtual and real objects on an equal footing.

[0112] XR technology can be applied to HMD (Head-Mount Display), HUD (Head-Up Display), mobile phones, tablet PCs, laptops, desktops, TVs, digital signage, etc., and devices to which XR technology is applied can be called XR devices.

[0113] Below, an electronic device providing augmented reality according to an embodiment of the present invention will be described. In particular, a projector applicable to augmented reality and an electronic device including the same will be described in detail.

[0114] Figure 2 is a block diagram showing the configuration of an extended reality electronic device (20) according to an embodiment of the present invention.

[0115] Referring to FIG. 2, the extended reality electronic device (20) may include a wireless communication unit (21), an input unit (22), a sensing unit (23), an output unit (24), an interface unit (25), a memory (26), a control unit (27), and a power supply unit (28). The components illustrated in FIG. 2 are not essential for implementing the electronic device (20), and thus, the electronic device (20) described in this specification may have more or fewer components than the components listed above.

[0116] More specifically, among the above components, the wireless communication unit (21) may include one or more modules that enable wireless communication between the electronic device (20) and a wireless communication system, between the electronic device (20) and another electronic device, or between the electronic device (20) and an external server. In addition, the wireless communication unit (21) may include one or more modules that connect the electronic device (20) to one or more networks.

[0117] This wireless communication unit (21) may include at least one of a broadcast reception module, a mobile communication module, a wireless Internet module, a short-range communication module, and a location information module.

[0118] The input unit (22) may include a camera or video input unit for inputting video signals, a microphone or audio input unit for inputting audio signals, and a user input unit (e.g., a touch key, a mechanical key, etc.) for receiving information from a user. Voice data or image data collected from the input unit (22) may be analyzed and processed into a user's control command.

[0119] The sensing unit (23) may include one or more sensors for sensing at least one of information within the electronic device (20), information about the surrounding environment surrounding the electronic device (20), and user information.

[0120] For example, the sensing unit (23) may include at least one of a proximity sensor, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, a G-sensor, a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor (IR sensor), a fingerprint recognition sensor, an ultrasonic sensor, an optical sensor (e.g., a photographing device), a microphone, a battery gauge, an environmental sensor (e.g., a barometer, a hygrometer, a thermometer, a radiation detection sensor, a heat detection sensor, a gas detection sensor, etc.), and a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric recognition sensor, etc.). Meanwhile, the electronic device (20) disclosed in the present specification may utilize information sensed by at least two or more of these sensors in combination.

[0121] The output unit (24) is for generating output related to visual, auditory, or tactile sensations, and may include at least one of a display unit, an audio output unit, a haptic module, and an optical output unit. The display unit may be formed as a touch screen by forming a mutual layer structure with a touch sensor or by forming an integral structure. This touch screen may function as a user input means that provides an input interface between the augmented reality electronic device (20) and the user, and at the same time, may provide an output interface between the augmented reality electronic device (20) and the user.

[0122] The interface unit (25) serves as a passageway for various types of external devices connected to the electronic device (20). Through the interface unit (25), the electronic device (20) can receive virtual reality or augmented reality content from the external device, and can perform mutual interaction by exchanging various input signals, sensing signals, and data.

[0123] For example, the interface unit (25) may include at least one of a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device equipped with an identification module, an audio I / O (Input / Output) port, a video I / O (Input / Output) port, and an earphone port.

[0124] In addition, the memory (26) stores data that supports various functions of the electronic device (20). The memory (26) can store a plurality of application programs (or applications) that run on the electronic device (20), data for the operation of the electronic device (20), and commands. At least some of these application programs can be downloaded from an external server via wireless communication. In addition, at least some of these application programs can exist on the electronic device (20) from the time of shipment for the basic functions of the electronic device (20) (e.g., call receiving and making functions, message receiving and making functions).

[0125] In addition to operations related to the application program, the control unit (27) typically controls the overall operation of the electronic device (20). The control unit (27) can process signals, data, information, etc. input or output through the components discussed above.

[0126] In addition, the control unit (27) can control at least some of the components by driving an application program stored in the memory (26) to provide appropriate information to the user or process a function. Furthermore, the control unit (27) can operate at least two or more of the components included in the electronic device (20) in combination with each other to drive the application program.

[0127] In addition, the control unit (27) can detect the movement of the electronic device (20) or the user by using a gyroscope sensor, gravity sensor, motion sensor, etc. included in the sensing unit (23). Alternatively, the control unit (27) can detect an object approaching the electronic device (20) or the user by using a proximity sensor, a light sensor, a magnetic sensor, an infrared sensor, an ultrasonic sensor, a light sensor, etc. included in the sensing unit (23). In addition, the control unit (27) can also detect the movement of the user by using sensors provided in a controller that operates in conjunction with the electronic device (20).

[0128] Additionally, the control unit (27) can perform operations (or functions) of the electronic device (20) using an application program stored in the memory (26).

[0129] The power supply unit (28) supplies power to each component included in the electronic device (20) by receiving external or internal power under the control of the control unit (27). The power supply unit (28) includes a battery, and the battery may be provided in a built-in or replaceable form.

[0130] At least some of the above components may cooperate with each other to implement the operation, control, or control method of the electronic device according to various embodiments described below. In addition, the operation, control, or control method of the electronic device may be implemented on the electronic device by driving at least one application program stored in the memory (26).

[0131] Hereinafter, an electronic device described as an example of the present invention will be described based on an embodiment applied to an HMD (Head Mounted Display). However, embodiments of the electronic device according to the present invention may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (personal digital assistant), a PMP (portable multimedia player), a navigation device, a slate PC, a tablet PC, an ultrabook, and a wearable device. In addition to an HMD, the wearable device may include a smart watch, a contact lens, VR / AR / MR Glasses, and the like.

[0132] FIG. 3 is a perspective view of an augmented reality electronic device according to an embodiment of the present invention.

[0133] As illustrated in FIG. 3, an electronic device according to an embodiment of the present invention may include a frame (100), a projector device (200), and a display unit (300).

[0134] The electronic device may be provided as a glass type (smart glass). The glass type electronic device is configured to be worn on the head of the human body and may include a frame (case, housing, etc.) (100) for this purpose. The frame (100) may be formed of a flexible material to facilitate wearing.

[0135] The frame (100) is supported by the head and provides a space for mounting various components. As illustrated, electronic components such as a projector device (200), a user input unit (130), or an audio output unit (140) may be mounted on the frame (100). In addition, a lens covering at least one of the left and right eyes may be detachably mounted on the frame (100).

[0136] The frame (100) may have a shape of glasses worn on the face of the user's body as shown in the drawing, but is not necessarily limited thereto, and may also have a shape of goggles or the like worn in close contact with the user's face.

[0137] Such a frame (100) may include a front frame (110) having at least one opening, and a pair of side frames (120) extending in the y direction (in FIG. 3) intersecting the front frame (110) and being parallel to each other.

[0138] The frame (100) may have the same or different length (DI) in the x direction and length (LI) in the y direction.

[0139] The project device (200) is provided to control various electronic components provided in an electronic device. The project device (200) may be used interchangeably with 'optical output device', 'optical projector device', 'light irradiation device', 'optical device', etc.

[0140] The projector device (200) can generate an image or a video of a sequence of images that are displayed to the user. The projector device (200) can include an image source panel that generates an image and a plurality of lenses that diffuse and converge light generated from the image source panel.

[0141] The project device (200) may be fixed to one of the two side frames (120). For example, the project device (200) may be fixed to the inside or outside of one of the side frames (120), or may be integrally formed by being built into the inside of one of the side frames (120). Alternatively, the project device (200) may be fixed to the front frame (110) or may be provided separately from the electronic device.

[0142] The display unit (300) may be implemented in the form of a head-mounted display (HMD). The HMD form refers to a display method that is mounted on the head and directly displays an image in front of the user's eyes. When the user wears the electronic device, the display unit (300) may be positioned to correspond to at least one of the left and right eyes so that the image can be directly displayed in front of the user's eyes. In this drawing, the display unit (300) is positioned in a portion corresponding to the right eye so as to output an image toward the user's right eye. However, as described above, the present invention is not limited thereto and may be positioned for both the left and right eyes.

[0143] The display unit (300) can allow the user to visually perceive the external environment while simultaneously displaying images generated by the projector device (200). For example, the display unit (300) can project images onto the display area using a prism.

[0144] The display unit (300) may be formed to be translucent so that the projected image and the general field of view in front (the range that the user sees through his eyes) can be viewed simultaneously. For example, the display unit (300) may be translucent and formed of an optical member including glass.

[0145] And the display unit (300) can be inserted into and fixed to an opening included in the front frame (110), or can be positioned on the back surface of the opening (i.e., between the opening and the user) and fixed to the front frame (110). In the drawing, an example in which the display unit (300) is positioned on the back surface of the opening and fixed to the front frame (110) is shown, but the display unit (300) can be positioned and fixed to various positions of the frame (100).

[0146] As illustrated in FIG. 3, when the electronic device projects image light from the projector device (200) onto one side of the display unit (300), the image light is emitted to the other side through the display unit (300), thereby allowing the user to see the image generated from the projector device (200).

[0147] Accordingly, the user can view the external environment through the opening of the frame (100) and simultaneously view the image generated by the projector device (200). That is, the image output through the display unit (300) can be seen to overlap with the general field of view. By utilizing these display characteristics, electronic devices can provide augmented reality (AR) that superimposes a virtual image on a real image or background and shows it as a single image.

[0148] Furthermore, in addition to these operations, images generated by the external environment and the projector device (200) may be provided to the user with a time difference for a short period of time that is not recognized by the user. For example, within a single frame, the external environment may be provided to the user during one section, and images from the projector device (200) may be provided to the user during another section.

[0149] Alternatively, both overlap and time difference may be provided.

[0150] Figures 4 to 6 are conceptual diagrams for explaining various display methods applicable to a display unit according to an embodiment of the present invention.

[0151] Specifically, FIG. 4 is a drawing for explaining an embodiment of a prism-type optical member, FIG. 5 is a drawing for explaining an embodiment of a waveguide-type optical member, and FIG. 6 is a drawing for explaining an embodiment of a surface reflection-type optical member.

[0152] As illustrated in FIG. 4, a prism-type optical member may be used in the display unit (300-1) according to an embodiment of the present invention.

[0153] As an example, a prism-type optical member may be a flat-type glass optical member in which the surface where image light is incident and the surface (300a) where the image light is emitted are planes, as shown in (a) of FIG. 4, or a freeform glass optical member in which the surface (300b) where the image light is emitted is formed as a curved surface without a constant radius of curvature, as shown in (b) of FIG. 4.

[0154] A flat-type glass optical member can receive image light generated from a projector device (200) through a flat side, reflect the light by a total reflection mirror (300a) provided inside, and emit the light toward the user. Here, the total reflection mirror (300a) provided inside the flat-type glass optical member can be formed inside the flat-type glass optical member by a laser.

[0155] The freeform glass optical member is configured to become thinner as it gets further away from the incident surface, so that the image light generated from the projector device (200) can be incident on the curved side, totally reflected internally, and emitted toward the user.

[0156] As illustrated in FIG. 5, a display unit (300-2) according to another embodiment of the present invention may use a waveguide type optical element or a light guide optical element (LOE).

[0157] Examples of optical elements of the waveguide (or waveguide) or light guide type include a glass optical element of the segmented beam splitter type as illustrated in (a) of FIG. 5, a glass optical element of the sawtooth prism type as illustrated in (b) of FIG. 5, a glass optical element having a diffractive optical element (DOE) as illustrated in (c) of FIG. 5, a glass optical element having a hologram optical element (HOE) as illustrated in (d) of FIG. 5, a glass optical element having a passive grating as illustrated in (e) of FIG. 5, and a glass optical element having an active grating as illustrated in (f) of FIG.

[0158] As shown in (a) of FIG. 5, a glass optical member of a segmented beam splitter type may be provided with a total reflection mirror (301a) on the side where the light image is incident and a segmented beam splitter (301b) on the side where the light image is emitted, as shown.

[0159] Accordingly, the optical image generated in the projector device (200) is totally reflected by the total reflection mirror (301a) inside the glass optical member, and the totally reflected optical image is partially separated and emitted by the partial reflection mirror (301b) while guiding light along the length direction of the glass, so that it can be recognized by the user's eyes.

[0160] As shown in (b) of Fig. 5, the glass optical member of the sawtooth prism type causes the image light of the projector device (200) to be incident diagonally on the side of the glass and is totally reflected inside the glass, and the light image is emitted to the outside of the glass by the sawtooth-shaped protrusions (302) provided on the side from which it is emitted, so that it can be recognized by the user's eyes.

[0161] A glass optical element having a diffractive optical element (DOE) as illustrated in (c) of FIG. 5 may be provided with a first diffractive portion (303a) on the surface on which the light image is incident and a second diffractive portion (303b) on the surface on which the light image is emitted. These first and second diffractive portions (303a, 303b) may be provided in a form in which a specific pattern is patterned on the surface of the glass or in a form in which a separate diffractive film is attached.

[0162] Accordingly, the light image generated from the projector device (200) is diffracted upon entering through the first diffraction section (303a), is totally reflected, and guides light along the length direction of the glass, and is emitted through the second diffraction section (303b), so that it can be recognized by the user's eyes.

[0163] A glass optical element having a hologram optical element (HOE) as illustrated in (d) of FIG. 5 may be provided with an out-coupler (304) inside the glass on the side from which the optical image is emitted. Accordingly, an optical image is incident from a projector device (200) diagonally through the side of the glass, is totally reflected, is guided along the length direction of the glass, and is emitted by the out-coupler (304) so ​​that it can be recognized by the user's eyes. Such a hologram optical element may be further subdivided into a structure having a passive grating and a structure having an active grating by slightly changing the structure.

[0164] A glass optical member having a passive grating, such as that illustrated in (e) of FIG. 5, may be provided with an in-coupler (305a) on the surface opposite to the glass surface on which the light image is incident, and an out-coupler (305b) on the surface opposite to the glass surface on which the light image is emitted. Here, the in-coupler (305a) and the out-coupler (305b) may be provided in the form of a film having a passive grating.

[0165] Accordingly, the light image incident on the incident side of the glass surface is totally reflected by the in-coupler (305a) provided on the opposite surface and guided along the length direction of the glass, and is emitted through the opposite surface of the glass by the out-coupler (305b), so that it can be recognized by the user's eyes.

[0166] A glass optical member having an active grating as illustrated in (f) of FIG. 5 may be provided with an in-coupler (306a) formed as an active grating inside the glass on the side where the light image is incident, and an out-coupler (306b) formed as an active grating inside the glass on the side where the light image is emitted.

[0167] Accordingly, the light image incident on the glass is guided along the length direction of the glass while being totally reflected by the in-coupler (306a), and is emitted outside the glass by the out-coupler (306b), so that it can be recognized by the user's eyes.

[0168] According to a modified example, a pin mirror type optical member may be used as the display unit.

[0169] In addition, as shown in (a) of Fig. 6, a freeform combiner type surface reflection type optical member may be formed as a single glass with multiple flat surfaces having different incident angles of light images, so that a freeform combiner glass having an overall curved surface may be used to perform the role of a combiner. Such a freeform combiner glass may be output to the user with the incident angles of light images being different for each area.

[0170] As shown in (b) of FIG. 6, a surface reflection type optical member of the Flat HOE method can be provided by coating or patterning a holographic optical member (HOE, 311) on the surface of a flat glass, and an optical image incident from a projector device (200) can pass through the holographic optical member (311), be reflected from the surface of the glass, and then pass through the holographic optical member (311) again to be emitted toward the user.

[0171] The freeform HOE type surface reflection type optical member as shown in (c) of Fig. 6 can be provided by coating or patterning a holographic optical member (HOE, 313) on the surface of a freeform glass, and the operating principle can be the same as that described in (b) of Fig. 6.

[0172] FIG. 7 is a perspective view of a project device according to one embodiment, and FIG. 8 is an exploded perspective view of a project device according to one embodiment.

[0173] Referring to FIGS. 7 and 8, a project device (200) according to one embodiment may include an outer lens (LS), a barrel (210), a substrate (220), a light source (230), a light guide (LG), a lens (FL), and a cover (240).

[0174] The outer lens (LS) can be inserted into the barrel (210). That is, the barrel (210) is located inside the projector device (200) and can accommodate the outer lens (LS). In addition, the barrel (210) can accommodate a light source unit (230), a light guide (LG), and a lens (LF).

[0175] Figure 9 is a perspective view of a barrel in a project device according to one embodiment.

[0176] Referring to FIGS. 7 to 9, the barrel (210) may have a space for accommodating the above-described components or additional optical elements. For example, the barrel (210) may include a first groove and a second groove. An outer lens (LS) may be disposed in the first groove. And, a light guide (LG) may be disposed in the second groove. Furthermore, the first groove and the second groove in the barrel (210) may be spaced apart from each other. That is, the barrel (210) has a space (e.g., a groove) in which the outer lens (LS) and the light guide (LG) are disposed, and these spaces may be separated or spaced apart from each other. Accordingly, insertion or coupling of the outer lens and the light guide may be facilitated.

[0177] In contrast, if the above spaces are interconnected, miniaturization of the project device can be achieved.

[0178] The barrel (210) may include a plurality of holes connected to the second groove. The plurality of holes may be located on the side of the barrel (210). Accordingly, light emitted from the light source unit (230) described below may be incident on the light guide (LG). Furthermore, the light incident on the light guide (LG) may be reflected and may pass through or transmit the outer lens (LS) and be provided to the waveguide or waveguide described above. To this end, the first groove and the second groove may be connected to each other through a through hole. That is, light reflected from the light guide (LG) in the second groove through the through hole may be provided to the outer lens (LS) of the first groove. In addition, as described above, light from the light source unit (230) may be emitted to the inner light guide (LG) through the plurality of holes arranged on the side of the barrel (210).

[0179] FIG. 10 is a perspective view showing a state in which a lens, a light source, and a light guide are combined in a project device according to one embodiment, and FIG. 11 is a perspective view of a light source in a project device according to one embodiment.

[0180] Referring to FIGS. 7, 8, 10, and 11, the light guide (LG) may be formed of at least one prism. For example, the light guide (LG) may be formed by combining or joining a plurality of prisms. The light guide (LG) may include a prism. The prism may be a reflective member, for example, an X-prism. As an embodiment, the light guide (LG) may have a structure in which at least two or more prisms are combined. In addition, the light guide (LG) may be a non-polarizing prism. That is, the light guide (LG) may not polarize light emitted from the light sources (232a, 232b, 232c).

[0181] And the light guide (LG) can include at least two or more coating surfaces (reflective members or reflective sheets). One of these at least two or more coating surfaces can reflect light of a first wavelength and light of a second wavelength and transmit light of a third wavelength. That is, the coating surface can reflect light of a predetermined wavelength band. Accordingly, for each of the lights emitted from the plurality of light sources (232a, 232b, 232c), lights of a desired wavelength band can be reflected by the light guide (LG). For example, light passing through the light guide (LG) can be provided to the outer lens (LS).

[0182] The light guide (LG) can be placed inside the barrel (210). The light guide (LG) can be placed in the internal receiving space of the barrel (210).

[0183] The light guide (LG) can be connected to a lens (FL). The light guide (LG) can be in contact with the lens (FL). The lenses (FL) can be arranged on multiple sides of the light guide (LG). One lens (FL) can be arranged on one side of the light guide (LG). The first lens (FL1), the second lens (FL2), and the third lens (FL3) can be arranged on adjacent, different sides of the light guide (LG), respectively.

[0184] The lens (FL) can be connected to the light guide (LG). The lens (FL) can be positioned adjacent to the light guide (LG). For example, the lens (FL) can be in contact with the light guide. That is, the lens (FL) can be in contact with the light guide (LG). Additionally, the light guide (LG) can be in contact with the lens (FL).

[0185] And the lens (FL) can be coupled with the light guide (LG). In this case, the lens (FL) can be coupled with the light guide (LG) through a bonding member or a joining member. The bonding member or joining member can be positioned between the lens (FL) and the light guide (LG).

[0186] The lens (FL) is positioned on the outer surface of the light guide (LG), and there may be at least one lens (FL). For example, the number of lenses (FL) may correspond to the number of light sources of the light source unit (230). If the number of light sources is three, the number of lenses (FL) may also be three.

[0187] For example, the lens (FL) may include a first lens (FL1), a second lens (FL2), and a third lens (FL3) corresponding to the light source. The first lens (FL1) may correspond to the first light source unit (230a). The second lens (FL2) may correspond to the second light source unit (230b). The third lens (FL3) may correspond to the third light source unit (230c). That is, the first to third lenses (FL1, FL2, FL3) may receive light emitted from the first to third light source units (230a, 230b, 230c), respectively.

[0188] In addition, the lens (FL) can be connected to the connection substrates (231a, 231b, 231c) of the light source unit (230). The lens (FL) can be arranged adjacent to the connection substrates (231a, 231b, 231c). For example, the lens (FL) can be in contact with the connection substrates (231a, 231b, 231c). That is, the lens (FL) can be in contact with the connection substrates (231a, 231b, 231c). In addition, the connection substrate (231) can be in contact with the lens (FL).

[0189] And the lens (FL) can be coupled with the connecting substrate (231a, 231b, 231c). In this case, the lens (FL) can be coupled with the connecting substrate (231a, 231b, 231c) through a bonding member or a joining member. The bonding member or joining member can be positioned between the lens (FL) and the connecting substrate (231a, 231b, 231c).

[0190] The first lens (FL1), the second lens (FL2), and the third lens (FL3) may correspond to the first connection substrate (231a), the second connection substrate (231b), and the third connection substrate (231c). The first lens (FL1) may correspond to the first connection substrate (231a). The second lens (FL2) may correspond to the second connection substrate (231b). The third lens (FL3) may correspond to the third connection substrate (231c).

[0191] The lens (FL) is arranged in combination with the connecting substrate (231a, 231b, 231c), thereby improving the alignment accuracy and reliability of the lens (FL) and the connecting substrate (231). In addition, by attaching the lens (FL) to the connecting substrate (231a, 231b, 231c) so as to be adjacent to the light source, the light emission integration can be improved, and by reducing the arrangement space of the light source unit (230), the miniaturization and free manufacturing of the projector device are facilitated.

[0192] There may be at least one light source unit (230). As described above, the following description will be based on three light sources. The light source unit (230) may include a first light source unit (230a), a second light source unit (230b), and a third light source unit (230c).

[0193] The first light source unit (230a) may overlap with the outer lens (LS) in a second direction (Y-axis direction). The second direction (Y-axis direction) may correspond to the direction of light emitted from the projector device (200). That is, the second direction (Y-axis direction) may correspond to the direction in which light emitted from the light source unit (230) is reflected by the light guide (LG) and emitted to the above-described display unit.

[0194] The second light source unit (230b) and the third light source unit (230c) may be positioned to face each other. Alternatively, the second light source unit (230b) and the third light source unit (230c) may be positioned to face each other. The second light source unit (230b) and the third light source unit (230c) may overlap in the first direction (X-axis direction). The first direction (X-axis direction) may be a direction perpendicular to the second direction (Y-axis direction). And the third direction (Z-axis direction) may be a direction perpendicular to the first direction and the second direction.

[0195] And the first light source unit (230a) may be located in an area between the second light source unit (230b) and the third light source unit (230c). And the directions of light emitted from the second light source unit (230b) and the third light source unit (230c) may be opposite to each other.

[0196] Each light source unit may include a connection board (231a, 231b, 231c) and a light source (232a, 232b, 232c).

[0197] The connecting substrates (231a, 231b, 231c) can connect the substrate (220) and the light sources (232a, 232b, 232c). The connecting substrates (231a, 231b, 231c) can electrically connect the substrate (220) and the light sources (232a, 232b, 232c). There may be one or more connecting substrates (231a, 231b, 231c). The connecting substrates (231a, 231b, 231c) may include a first connecting substrate (231a), a second connecting substrate (231b), and a third connecting substrate (231c). The connecting substrates (231a, 231b, 231c) may be arranged between each light source and the substrate. By arranging the connection substrates (231a, 231b, 231c) between the substrate (220) and the light sources (232a, 232b, 232c), the wiring connection between the substrate (220) and the light sources (232a, 232b, 232c) can be facilitated. In addition, when the light sources (232a, 232b, 232c) are arranged on the substrate (220), they can be arranged first on the connection substrates (231a, 231b, 231c) and then the positions of the connection substrates (231a, 231b, 231c) can be adjusted, thereby facilitating the positional arrangement of the light sources (232a, 232b, 232c).

[0198] A first connecting substrate (231a) may be electrically connected to a first light source (232a) and a substrate. The first connecting substrate (231a) may be disposed between the first light source (232a) and the substrate. The first connecting substrate (231a) may overlap with the first light source (232a) and the substrate in a second direction. A second connecting substrate (231b) may be electrically connected to the second light source (232b) and the substrate. The second connecting substrate (231b) may be disposed between the second light source (232b) and the substrate. The second connecting substrate (231b) may overlap with the second light source (232b) and the substrate in a first direction. A third connecting substrate (231c) may be electrically connected to the third light source (232c) and the substrate. The third connecting substrate (231c) may be placed between the third light source (232c) and the substrate. The third connecting substrate (231c) may overlap with the third light source (232c) and the substrate in the first direction. The second connecting substrate (231b) may be placed to face the third connecting substrate (231c). The second connecting substrate (231b) and the third connecting substrate (231c) may overlap in the first direction.

[0199] The connecting substrates (231a, 231b, 231c) can be in contact with the lenses (FL). The first connecting substrate (231a) can be in contact with the first lens (FL1). The second connecting substrate (231b) can be in contact with the second lens (FL2). The third connecting substrate (231c) can be in contact with the third lens (FL3). Light sources (232a, 232b, 232c) can be arranged in the space between the connecting substrates (231a, 231b, 231c) and each lens (FL). The connecting substrates (231a, 231b, 231c) are arranged in combination with the lenses (FL), thereby improving the alignment accuracy and reliability of the lenses (FL) and the connecting substrates (231a, 231b, 231c). In addition, by attaching a lens (FL) to the connecting substrate (231a, 231b, 231c) adjacent to the light source, the light emission integration can be improved, and the placement space of the light source unit (230) can be reduced, facilitating miniaturization and free manufacturing of the projector device.

[0200] A connecting member for bonding the connecting boards (231a, 231b, 231c) and the substrate (220) may be placed between the connecting boards (231a, 231b, 231c) and the substrate (220). The connecting member may include epoxy, a film, or a copper pad. A copper pad for conductivity may be soldered between the connecting boards (231a, 231b, 231c) and the substrate (220).

[0201] The light sources (232a, 232b, 232c) can emit light. For example, light emitted from the light sources (232a, 232b, 232c) can be incident on the light guide (LG). And there can be one or more light sources (232a, 232b, 232c). The light sources (232a, 232b, 232c) can include a first light source (232a), a second light source (232b), and a third light source (232c). And the light sources (232a, 232b, 232c) can be arranged on each connecting substrate.

[0202] That is, in the light source unit (230), the light sources (232a, 232b, 232c) may be single or multiple. For example, the light sources (232a, 232b, 232c) may be multiple and include a first light source (232a), a second light source (232b), and a third light source (232c). The first light source (232a) to the third light source (232c) may emit light in the same direction or different directions. For example, the second light source (232b) and the third light source (232c) may be positioned to face each other. The second light source (232b) and the third light source (232c) may be positioned to overlap each other in the first direction (X-axis direction). And a light guide (LG) may be positioned between the second light source (232b) and the third light source (232c). Accordingly, the light guide (LG) may overlap the second light source (232b) and the third light source (232c).

[0203] The first light source (232a) to the third light source (232c) can emit light toward the light guide (LG). In addition, the first light source (232a) can overlap the light guide (LG) in a second direction. With this configuration, the projector device (200) can have a compact light source unit (230).

[0204] Additionally, each of the first light source (232a), the second light source (232b), and the third light source (232c) can emit light of a wavelength or color that is partially the same or different from each other. For example, each of the first light source (232a), the second light source (232b), and the third light source (232c) can emit red, green, and blue light.

[0205] The light sources (232a, 232b, 232c) may be disposed on the connecting substrates (231a, 231b, 231c). The light sources (232a, 232b, 232c) may be electrically connected to the connecting substrates (231a, 231b, 231c). The light sources (232a, 232b, 232c) may be disposed between the connecting substrates (231a, 231b, 231c) and the lenses (FL1, FL2, FL3). The first light source (232a) may be disposed on the first connecting substrate (231a). The second light source (232b) may be disposed on the second connecting substrate (231b). The third light source (232c) may be disposed on the third connecting substrate (231c). The light sources (232a, 232b, 232c) can be attached to one surface of each connecting substrate (231a, 231b, 231c) using the SMT (Surface Mount Technology) method or the DIE Attach method.

[0206] The first light source (232a) can overlap with the first lens (FL1) in a second direction. The first connecting substrate (231a) on which the first light source (232a) is arranged can contact the first lens (FL1), and the first light source (232a) can be accommodated in the internal space of the first lens (FL1). By arranging the first light source (232a) to overlap with the first lens (FL1) in the second direction, the width of the light source unit (230) can be reduced, miniaturizing the projector device (200) and improving the degree of freedom in manufacturing.

[0207] The cover (240) can be placed on the outside of the barrel (210) and surround the barrel (210). The cover (240) can be coupled to the barrel (210). The cover (240) can be coupled to the upper surface of the barrel (210) to protect the internal structure of the barrel (210). The cover (240) can protect the light guide (LG) and the lens (FL) inside the barrel (210). Accordingly, the projector device (200) according to the embodiment can provide improved reliability.

[0208] Additionally, the projector device (200) may include a spacer (not shown) and a housing (not shown). The spacer may include a first spacer and a second spacer. The first spacer may be positioned outside the outer lens (LS) accommodated in the first groove of the barrel (210) to prevent the outer lens (LS) from being detached. The second spacer may be positioned inside the barrel (210). The second spacer may be positioned outside the light guide (LG) and the lens (FL). Accordingly, the light guide (LG) and the lens (FL) may not be detached from the barrel (210). In other words, the second spacer may suppress the light guide (LG) and the lens (FL) from being separated from the barrel (210). The housing may be positioned outside the barrel (210). The housing may surround the barrel (210). For example, the housing may be arranged to surround at least a portion of the barrel (210). Further, the housing may include a space for accommodating a light source. Further, the housing may include at least one housing hole. A light source may be arranged within the housing hole. Further, light emitted from the light source through the at least one housing hole may be provided to a lens (FL) and a light guide (LG). The housing may be arranged on the outside of the barrel (210) and include a space for accommodating the barrel (210) and the light source unit (230).

[0209] FIG. 12 is a perspective view of a substrate in a projector device according to one embodiment, FIG. 13 is a perspective view showing a state in which a lens, a light source unit, a light guide, and a substrate are combined in a projector device according to one embodiment, FIGS. 14 and 15 are side views showing a state in which a lens, a light source unit, a light guide, and a substrate are combined in a projector device according to one embodiment, FIG. 16 is a rear view showing a state in which a lens, a light source unit, a light guide, and a substrate are combined in a projector device according to one embodiment, FIG. 17 is a bottom view showing a state in which a lens, a light source unit, a light guide, and a substrate are combined in a projector device according to one embodiment, and FIG. 18 is a cross-sectional view showing a cross-section taken along line AA' in FIG. 13.

[0210] Referring to FIGS. 12 to 18, the project device (200) may include a substrate (220) arranged to surround a light guide (LG).

[0211] The substrate (220) can transmit electrical energy to emit light by being connected to a light source (232a, 232b, 232c) through a connecting substrate (231a, 231b, 231c). The substrate (220) can be positioned at the outermost side of the barrel (210). The substrate (220) can include a lower substrate (221), first side substrates to third side substrates (222a, 222b, 222c), and a support substrate (223).

[0212] The lower substrate (221) may be disposed at the bottom of the projector device (200). The lower substrate (221) may be disposed at the bottom of the light guide (LG). The lower substrate (221) may overlap the light guide (LG) in a third direction. The lower substrate (221) may be spaced apart from the lower surface of the light guide (LG) by a certain distance in the third direction. The lower substrate (221) may be connected to the first side substrate to the third side substrate (222a, 222b, 222c) and the support substrate (223). The first direction width of the lower substrate (221) may be greater than the first direction width of the light guide (LG). The second direction width of the lower substrate (221) may be greater than the second direction width of the light guide (LG).

[0213] The lower substrate (221) may include first to third extension portions (221a, 221b, 221c). The first to third extension portions (221a, 221b, 221c) may be portions extending outward from the lower substrate (221). The first extension portion (221a) may extend in a first direction from the lower substrate (221). The first extension portion (221a) may be connected to the first side substrate (222a). The second extension portion (221b) and the third extension portion (221c) may extend in a second direction from the lower substrate (221). The second extension portion (221b) and the third extension portion (221c) may extend in opposite directions with respect to the second direction. The second extension portion (221b) may be connected to the second side substrate (222b). The third extension (221c) can be connected to the third side substrate (222c).

[0214] The first to third extension portions (221a, 221b, 221c) may each include a plurality of sub-extensions. The plurality of sub-extensions may extend in parallel and spaced apart from each other. The first extension portion (221a) may include a first sub-extension portion (221a-1) and a second sub-extension portion (221a-2). The first sub-extension portion (221a-1) and the second sub-extension portion (221a-2) may be spaced apart from each other in a second direction and spaced apart from each other in parallel. The first sub-extension portion (221a-1) and the second sub-extension portion (221a-2) may each be bent in a third direction and connected to the first side substrate (222a). The first to third extensions (221a, 221b, 221c) each include a plurality of sub-extensions, thereby enabling the first to third side substrates (222a, 222b, 222c) to be more easily bent from the lower substrate (221).

[0215] The first to third side substrates (222a, 222b, 222c) may be portions bent in a third direction from the lower substrate (221). The first to third side substrates (222a, 222b, 222c) may be connected to connection substrates (231a, 231b, 231c). The first to third side substrates (222a, 222b, 222c) may include openings. The first to third side substrates (222a, 222b, 222c) may include a plurality of concave portions. The projector device (200) may supply current to three light sources simultaneously by including the first to third side substrates (222a, 222b, 222c) each connected to a light source, thereby improving the optical performance of the projector device. In addition, since the first side substrate to the third side substrate (222a, 222b, 222c) are all folded from one lower substrate (221), the alignment accuracy of the light source can be improved, and thus light loss can be minimized.

[0216] The first side substrate (222a) can be bent in a third direction from the end of the first extension portion (221a) of the lower substrate (221). The first side substrate (222a) can be in contact with the first connection substrate (231a). The first side substrate (222a) can be connected to the first light source (232a) via the first connection substrate (231a) to transmit electrical energy so that the first light source (232a) can emit light.

[0217] The first side substrate (222a) may include a first opening (h1). The first opening (h1) may be an opening positioned on the inside of the first side substrate (222a). The first opening (h1) may overlap the first light source (232a) in the first direction.

[0218] The first side substrate (222a) may include a first concave portion (c1) and a second concave portion (c2). The first concave portion (c1) and the second concave portion (c2) may be arranged on both sides of the first side substrate (222a). The first concave portion (c1) and the second concave portion (c2) may be spaced apart in the second direction. The third direction widths of the first concave portion (c1) and the second concave portion (c2) may be larger than the third direction width of the first opening (h1). The second direction widths of the first concave portion (c1) and the second concave portion (c2) may be smaller than the second direction width of the first opening (h1).

[0219] A connecting member (not shown) may be arranged between the first side substrate (222a) and the first connection substrate (231a), and the connecting member may overlap the first concave portion (c1) and the second concave portion (c2) in the first direction. A part of the connecting member may overlap the first concave portion (c1) and the second concave portion (c2) in the first direction, and a part may not overlap. The connecting member may be arranged between the first side substrate (222a) and the first connection substrate (231a) so as to bring the first side substrate (222a) and the first connection substrate (231a) into contact and be fixed, thereby improving the reliability and light-emitting integration of the projector device (200). The connecting member includes a copper pad and may be bonded between the first side substrate (222a) and the first connection substrate (231a) by a soldering method.

[0220] The second side substrate (222b) can be bent in a third direction from the end of the second extension portion (221b) of the lower substrate (221). The second side substrate (222b) can be in contact with the second connection substrate (231b). The second side substrate (222b) can be connected to the second light source (232b) via the second connection substrate (231b) to transmit electrical energy so that the second light source (232b) can emit light.

[0221] The second side substrate (222b) may include a second opening (h2). The second opening (h2) may be an opening positioned on the inner side of the second side substrate (222b). The second opening (h2) may overlap the second light source (232b) in the second direction.

[0222] The second side substrate (222b) may include a third concave portion (c3) and a fourth concave portion (c4). The third concave portion (c3) and the fourth concave portion (c4) may be arranged on both sides of the second side substrate (222b). The third concave portion (c3) and the fourth concave portion (c4) may be spaced apart from each other in the first direction. The third direction widths of the third concave portion (c3) and the fourth concave portion (c4) may be larger than the third direction width of the second opening (h2). The first direction widths of the third concave portion (c3) and the fourth concave portion (c4) may be smaller than the first direction width of the second opening (h2).

[0223] A connecting member (not shown) may be arranged between the second side substrate (222b) and the second connection substrate (231b), and the connecting member may overlap the third concave portion (c3) and the fourth concave portion (c4) in the second direction. A part of the connecting member may overlap the third concave portion (c3) and the fourth concave portion (c4) in the second direction, and a part may not overlap. The connecting member may be arranged between the second side substrate (222b) and the second connection substrate (231b), so that the second side substrate (222b) and the second connection substrate (231b) may be fixed by contact, and the reliability and light-emitting integration of the projector device (200) may be improved. The connecting member includes a copper pad, and may be bonded between the second side substrate (222b) and the second connection substrate (231b) by a soldering method.

[0224] The third side substrate (222c) can be bent in a third direction from the end of the third extension portion (221c) of the lower substrate (221). The third side substrate (222c) can be in contact with the third connection substrate (231c). The third side substrate (222c) can be connected to the third light source (232c) via the third connection substrate (231c) to transmit electrical energy so that the third light source (232c) can emit light.

[0225] The third side substrate (222c) may include a third opening (h3). The third opening (h3) may be an opening positioned on the inside of the third side substrate (222c). The third opening (h3) may overlap the third light source (232c) in the second direction.

[0226] The third side substrate (222c) may include a fifth concave portion (c5) and a sixth concave portion (c6). The fifth concave portion (c5) and the sixth concave portion (c6) may be arranged on both sides of the third side substrate (222c). The fifth concave portion (c5) and the sixth concave portion (c6) may be spaced apart from each other in the first direction. The third direction widths of the fifth concave portion (c5) and the sixth concave portion (c6) may be larger than the third direction width of the third opening (h3). The first direction widths of the fifth concave portion (c5) and the sixth concave portion (c6) may be smaller than the first direction width of the third opening (h3).

[0227] A connecting member (not shown) may be arranged between the third side substrate (222c) and the third connection substrate (231c), and the connecting member may overlap the fifth concave portion (c5) and the sixth concave portion (c6) in the second direction. Some of the connecting member may overlap the fifth concave portion (c5) and the sixth concave portion (c6) in the second direction, and some may not overlap. The connecting member may be arranged between the third side substrate (222c) and the third connection substrate (231c), so that the third side substrate (222c) and the third connection substrate (231c) may be fixed by contact, thereby improving the reliability and light-emitting integration of the projector device (200). The connecting member includes a copper pad, and may be bonded between the third side substrate (222c) and the third connection substrate (231c) by a soldering method.

[0228] The support substrate (223) may be a portion that is bent in the opposite direction from the first side substrate to the third side substrate (222a, 222b, 222c) from the lower substrate (221). The support substrate (223) may be bent in the third direction from the lower substrate (221). The support substrate (223) may not overlap with the first side substrate (222a) in the third direction. The support substrate (223) may protrude from the lower side of the projector device (200) to fix and support the projector device (200).

[0229] Although the above description focuses on examples, these are merely examples and do not limit the present invention. Those skilled in the art will appreciate that various modifications and applications not exemplified above are possible without departing from the essential characteristics of the present invention. For example, each component specifically shown in the examples can be modified and implemented. In addition, differences related to such modifications and applications should be construed as being included within the scope of the present invention defined in the appended claims.

Claims

1. Light guide; a substrate arranged to surround the above light guide; and A first connecting substrate and a first lens are disposed between the light guide and the substrate; The substrate includes a lower substrate and a first side substrate bent in a vertical direction from the lower substrate, A project device in which the first connecting substrate is in contact with the first side substrate and the first lens.

2. In paragraph 1, Further comprising a first light source disposed on the first connecting substrate, A projector device in which the first light source is disposed between the first connecting substrate and the first lens.

3. In paragraph 2, The first side substrate is spaced apart from the light guide in a first direction, A project device wherein the substrate further includes a second side substrate and a third side substrate spaced apart in a second direction perpendicular to the first direction.

4. In paragraph 3, A project device further comprising a second connection substrate and a third connection substrate, each in contact with the second side substrate and the third side substrate.

5. In paragraph 4, A project device further comprising a second light source and a third light source respectively disposed on the second connecting substrate and the third connecting substrate.

6. In paragraph 3, The first side substrate includes a first opening, A project device in which the first opening overlaps the first light source in the first direction.

7. In paragraph 6, A project device in which the first side substrate includes a first concave portion and a second concave portion respectively disposed on two sides spaced apart from the first opening in the second direction.

8. In paragraph 3, A project device comprising a support substrate bent in an opposite direction from the first side substrate to the third side substrate from the lower substrate.

9. In paragraph 7, Including a connecting member disposed between the first side substrate and the first connecting substrate, The above connecting member is a project device that overlaps the first concave portion and the second concave portion in the first direction.

10. In paragraph 3, A project device in which the second side substrate and the third side substrate are arranged in a direction perpendicular to the first side substrate and overlap with the light guide in the second direction.

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