Projector device and electronic device including the same

Abstract

An embodiment discloses a projector device comprising: a light guide; a substrate disposed around the light guide; and a first connecting 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 a direction perpendicular to the lower substrate, and the first connecting substrate contacts the first side substrate and the first lens.

Description

Technical Field

[0001] The embodiments relate to a projector device and an electronic device including the projector device. Background Technology

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

[0003] Augmented reality (AR) is a technology used to combine virtual objects or information with the real environment, making the virtual objects or information appear to exist in the original environment.

[0004] Mixed Reality (MR) refers to the creation of new environments or information by combining the virtual and real worlds. Specifically, the real-time interaction between those existing in the real and virtual worlds is called mixed reality.

[0005] In this context, the created virtual environment and scenarios stimulate the user's five senses, enabling them to experience space and time similar to those in the real world, thus allowing them to freely traverse the boundaries between reality and imagination. Furthermore, users are not only immersed in this environment but can also interact with elements realized within it by performing manipulations or issuing commands, for example, using real-world devices.

[0006] Recently, research has been actively conducted on devices (instruments and apparatuses) used in these technological fields. However, a need has emerged for miniaturization and improved optical performance of such devices. Summary of the Invention

[0007] [Technical Issues]

[0008] The embodiments aim to provide a projector device and an electronic device including the projector device, which, when used in augmented reality (AR) and the like, can improve the light emission integration density by attaching a lens directly in front of the light source.

[0009] The embodiments also aim to provide a projector device and an electronic device that can be more easily miniaturized by reducing the space required to house the light source.

[0010] The objectives to be addressed by the implementation methods are not limited to those described above, but will include objectives and effects that can be identified through the solutions and implementation methods described below.

[0011] [Technical Solutions]

[0012] The projector device according to an embodiment includes: a light guide, a substrate disposed around the light guide, and a first connecting 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 vertically from the lower substrate, and the first connecting substrate is in contact with the first side substrate and the first lens.

[0013] The projector device may further include a first light source disposed on the first connecting substrate, wherein the first light source may be disposed between the first connecting substrate and the first lens.

[0014] The first side substrate may be spaced apart from the light guide in a first direction, and the substrate may also include a second side substrate and a third side substrate, the second side substrate and the third side substrate being spaced apart from each other in a second direction perpendicular to the first direction.

[0015] The projector device may also include a second connecting substrate and a third connecting substrate that are in contact with the second side substrate and the third side substrate, respectively.

[0016] The projector device may also include a second light source and a third light source respectively disposed on the second connecting substrate and the third connecting substrate.

[0017] The first side substrate may include a first opening, and the first opening may overlap with the first light source in a first direction.

[0018] The first side substrate may include a first recess and a second recess, the first recess and the second recess being respectively disposed in opposite side surfaces spaced apart from the first opening in a second direction.

[0019] The substrate may include a support substrate that is bent from the lower substrate in a direction opposite to that of the first side substrate to the third side substrate.

[0020] The projector device may include a connecting member disposed between a first side substrate and a first connecting substrate, wherein the connecting member may overlap with a first recess and a second recess in a first direction.

[0021] The second and third side substrates can be disposed in a direction perpendicular to the first side substrate, and can overlap with the light guide in the second direction.

[0022] The lower substrate may be 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.

[0023] The first lens can contact the first connecting substrate and the light guide.

[0024] The first light source can overlap with the first lens in the second direction.

[0025] The width of the lower substrate in the second direction can be greater than the width of the light guide in the second direction.

[0026] The lower substrate may include a first extension extending in a first direction and a second and a third extension extending in a second direction.

[0027] The first extension may include a first sub-extension and a second sub-extension spaced apart from each other in a second direction.

[0028] Each of the first sub-extension and the second sub-extension can be bent in the vertical direction and connected to the first side substrate.

[0029] [Beneficial Effects]

[0030] According to an embodiment, a projector device and an electronic device including the projector device can be provided. When the projector device and the electronic device including the projector device are used in augmented reality (AR) and the like, the projector device and the electronic device including the projector device can improve the light emission integration density by attaching a lens directly in front of the light source.

[0031] Alternatively, a projector device and an electronic device can be provided that are easier to miniaturize by reducing the space required to house the light source.

[0032] The various advantages and effects of the present invention are not limited to the above description, and can be more readily understood through the description of specific exemplary embodiments of the present invention. Attached Figure Description

[0033] Figure 1 This is a conceptual diagram illustrating an implementation of an artificial intelligence (AI) device.

[0034] Figure 2 This is a block diagram illustrating the configuration of an extended reality electronic device according to an embodiment of the present invention.

[0035] Figure 3 This is a perspective view of an augmented reality electronic device according to a first embodiment of the present invention.

[0036] Figures 4 to 6 This is a conceptual diagram used to describe various display methods applicable to a display unit according to an embodiment of the present invention.

[0037] Figure 7 This is a perspective view of a projector device according to one embodiment.

[0038] Figure 8This is an exploded perspective view of a projector device according to one embodiment.

[0039] Figure 9 This is a perspective view of the lens barrel in a projector device according to one embodiment.

[0040] Figure 10 This is a perspective view showing the state of coupling of the lens, light source unit, and light guide in a projector device according to one embodiment.

[0041] Figure 11 This is a perspective view of the light source unit in a projector device according to one embodiment.

[0042] Figure 12 This is a perspective view of a substrate in a projector device according to one embodiment.

[0043] Figure 13 This is a perspective view showing the coupling state of the lens, light source unit, light guide and substrate in a projector device according to one embodiment.

[0044] Figure 14 and Figure 15 This is a side view showing the coupling state of the lens, light source unit, light guide and substrate in a projector device according to one embodiment.

[0045] Figure 16 This is a rear view showing the coupling state of the lens, light source unit, light guide, and substrate in a projector device according to one embodiment.

[0046] Figure 17 This is a bottom view showing the coupling state of the lens, light source unit, light guide and substrate in a projector device according to one embodiment.

[0047] Figure 18 It shows along Figure 13 The cross-sectional view of the cross section intercepted by line AA' in the diagram. Detailed Implementation

[0048] In the following, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0049] However, the technical spirit of the present invention is not limited to the embodiments described, and can be implemented in various forms. Furthermore, within the scope of the technical concept of the present invention, one or more components of the embodiments can be selectively combined, substituted, or replaced with each other.

[0050] Furthermore, unless specifically defined and described, the terms (including technical and scientific terms) used in embodiments of the present invention can be interpreted in terms of meaning commonly understood by those skilled in the art, and commonly used terms, such as those defined in dictionaries, can be understood taking into account their contextual meaning in the relevant field.

[0051] Furthermore, the terminology used in the embodiments of the present invention is provided only for describing the embodiments of the present invention and is not for limiting purposes.

[0052] In this specification, unless the context clearly indicates otherwise, the singular form includes its plural form, and in the case of describing “at least one (or one or more) of A, B and C”, this may include at least one of all combinations that can be combined with A, B and C.

[0053] In addition, terms such as "first", "second", "A", "B", "(a)", "(b)" can be used to describe components of embodiments of the present invention.

[0054] These terms are provided only to distinguish components from other components, and the nature, order, sequence, etc., of components are not limited by the terms.

[0055] In addition, when a component is described as “connected,” “coupled,” or “linked” to another component, the component can not only be directly connected, coupled, or linked to another component, but also be “connected,” “coupled,” or “linked” to another component through another component between the component and the other component.

[0056] Furthermore, when a component is described as being formed "above" or "below" another component, the terms "above" or "below" include both cases where the two components are in direct contact with each other and cases where one or more components are disposed (indirectly) between the two components. Additionally, when a component is described as being disposed "above" or "below" another component, such a description can include cases where the component is disposed on the upper or lower side relative to one component.

[0057] Figure 1 This is a conceptual diagram illustrating an implementation of an artificial intelligence (AI) device.

[0058] Reference Figure 1 In the AI ​​system, at least one of the following is connected to the cloud network 10: AI server 16, robot 11, autonomous vehicle 12, extended reality (XR) device 13, smartphone 14, and home appliance 15. Here, the robot 11, autonomous vehicle 12, XR device 13, smartphone 14, home appliance 15, etc., which apply AI technology, can be referred to as AI devices 11 to 15.

[0059] The cloud network 10 may refer to a network that forms part of or exists in a cloud computing infrastructure. Here, the cloud network 10 may be configured using a 3G network, a 4G or Long Term Evolution (LTE) network, a 5G network, or the like.

[0060] That is, the apparatuses 11 to 16 constituting the AI system may be connected to each other via the cloud network 10. In particular, the apparatuses 11 to 16 may communicate with each other via a base station, and may also communicate directly with each other without passing through a base station.

[0061] The AI server 16 may include a server that performs AI processing and a server that performs operations on big data.

[0062] The AI server 16 may be connected via the cloud network 10 to at least one of the robot 11, the autonomous vehicle 12, the XR device 13, the smartphone 14, and the home appliance 15, which are AI devices constituting the AI system, and may assist at least part of the AI processing of the connected AI devices 11 to 15.

[0063] In this case, the AI server 16 may train an artificial neural network according to a machine learning algorithm on behalf of the AI devices 11 to 15, and may directly store the trained model or transmit the trained model to the AI devices 11 to 15.

[0064] In this case, the AI server 16 may receive input data from the AI devices 11 to 15, infer a result value of the received input data using a learned model, generate a response or control command based on the inferred result value, and transmit the response or control command to the AI devices 11 to 15.

[0065] Alternatively, the AI devices 11 to 15 themselves may infer a result value of input data using a learned model, and generate a response or control command based on the inferred result value.

[0066] <AI+Robot>

[0067] The robot 11 may be implemented as a guide robot, a transport robot, a cleaning robot, a wearable robot, an entertainment robot, a pet robot, an unmanned flying robot, or the like by applying AI technology.

[0068] The robot 11 may include a robot control module for controlling operations, and the robot control module may refer to a software module or a chip that implements the software module in hardware.

[0069] The robot 11 may obtain state information of the robot 11, detect (recognize) surrounding environments and objects, generate map data, determine a movement path and a driving plan, determine a response to user interaction, or determine an operation using sensor information obtained from various types of sensors.

[0070] Here, the robot 11 may determine the movement path and the driving plan using sensor information obtained from at least one sensor among LiDAR, radar, and imaging devices.

[0071] The robot 11 may perform the operations described above using a learning model including at least one artificial neural network. For example, the robot 11 may recognize surrounding environments and objects using the learning model, and determine an operation using information on the recognized surrounding environment or the recognized object. Here, the learning model may be trained by the robot 11 itself or by an external device such as the AI server 16.

[0072] In this case, although the robot 11 itself may perform the operation by generating a result using the learning model, the robot 11 may perform the operation by transmitting sensor information to an external device such as the AI server 16 and receiving a result generated accordingly.

[0073] The robot 11 may determine the movement path and the driving plan using at least one of map data, object information detected from the sensor information, and object information obtained from the external device, and control a driving unit to drive the robot 11 according to the determined movement path and driving plan.

[0074] The map data may include object recognition information of various objects disposed in a space where the robot 11 moves. For example, the map data may include object recognition information of fixed objects such as walls and doors, and movable objects such as flower pots and tables. In addition, the object recognition information may include names, types, distances, positions, and the like.

[0075] In addition, the robot 11 may perform an operation or drive by controlling the driving unit based on user control / interaction. In this case, the robot 11 may obtain information on interaction intention according to a user's action or voice utterance, determine a response based on the obtained information on intention, and perform the operation.

[0076] <AI+Autonomous Driving>

[0077] The autonomous vehicle 12 may be implemented as a mobile robot, a vehicle, an unmanned aerial vehicle, or the like by applying AI technology.

[0078] The autonomous vehicle 12 may include an autonomous driving control module for controlling autonomous driving functions, and the autonomous driving control module may refer to a software module or a chip that implements the software module in hardware. Although the autonomous driving control module may be included as a component inside the autonomous vehicle 12, the autonomous driving control module may also be configured as a separate piece of hardware outside the autonomous vehicle 12 and connected to the autonomous vehicle 12.

[0079] Autonomous vehicle 12 can use sensor information obtained from various types of sensors to obtain state information of autonomous vehicle 12, detect (identify) the surrounding environment and objects, generate map data, determine movement paths and driving plans, or determine operations.

[0080] Here, like robot 11, autonomous vehicle 12 can use sensor information obtained from at least one of the sensors, including lidar, radar, and camera devices, to determine the movement path and driving plan.

[0081] Specifically, the autonomous vehicle 12 can identify the environment or objects in areas outside the field of view or beyond a certain distance by receiving sensor information from external devices, or it can receive information directly identified from external devices.

[0082] The autonomous vehicle 12 can perform the operations described above using a learning model that includes at least one artificial neural network. For example, the autonomous vehicle 12 can use a trained model to identify the surrounding environment and objects, and use information about the identified surrounding environment or identified objects to determine a driving route. Here, the learning model can be trained by the autonomous vehicle 12 itself or by an external device such as an AI server 16.

[0083] In this scenario, although the autonomous vehicle 12 itself can perform operations by generating results using a learning model, it can also perform operations by transmitting sensor information to an external device such as an AI server 16 and receiving the results generated therefrom.

[0084] The autonomous vehicle 12 can use at least one of map data, object information detected from sensor information, and object information obtained from external devices to determine a movement path and driving plan, and control the drive unit to drive the autonomous vehicle 12 according to the determined movement path and driving plan.

[0085] Map data may include object identification information for various objects situated within the space (e.g., a road) in which the autonomous vehicle 12 travels. For example, map data may include object identification information for fixed objects such as streetlights, rocks, and buildings, and movable objects such as vehicles and pedestrians. Additionally, object identification information may include name, type, distance, location, etc.

[0086] In addition, the autonomous vehicle 12 may perform operations or drive by controlling a driving unit based on user control / interaction. In this case, the autonomous vehicle 12 may obtain information about interaction intent according to a user's action or voice utterance, determine a response based on the obtained intent information, and execute the operation.

[0087] <AI+XR>

[0088] The XR device 13 may be implemented as a head-mounted display (HMD), a head-up display (HUD) disposed in a vehicle, a television, a mobile phone, a smartphone, a computer, a wearable device, a home appliance, a digital signage, a vehicle, a fixed robot, a mobile robot, etc. by applying AI technology.

[0089] The XR device 13 may obtain information about the surrounding space or real objects by analyzing three-dimensional (3D) point cloud data or image data obtained through various sensors or from an external device and generating position data and attribute data of 3D points, and may render and output an XR object to be output. For example, the XR device 13 may output an XR object including additional information about the identified object corresponding to the identified object.

[0090] The XR device 13 may perform the operations described above using a learning model including at least one artificial neural network. For example, the XR device 13 may identify a real object from 3D point cloud data or image data using the learning model, and provide information corresponding to the identified real object. Here, the learning model may be trained by the XR device 13 itself or by an external device such as the AI server 16.

[0091] In this case, although the XR device 13 itself may perform the operation by generating a result using the learning model, the XR device 13 may perform the operation by transmitting sensor information to an external device such as the AI server 16 and receiving a result generated accordingly.

[0092] <AI+Robot+Autonomous Driving>

[0093] The robot 11 may be implemented as a guide robot, a transport robot, a cleaning robot, a wearable robot, an entertainment robot, a pet robot, an unmanned flying robot, etc. by applying AI technology and autonomous driving technology.

[0094] The robot 11 applying AI technology and autonomous driving technology may refer to a robot itself with an autonomous driving function, or the robot 11 that interacts with the autonomous vehicle 12.

[0095] The robot 11 with autonomous driving function may generally refer to a device that moves by itself along a given path without user control, or independently determines a movement path and moves along the path.

[0096] The robot 11 with autonomous driving function and the autonomous vehicle 12 may use a common sensing method to determine one or more of a movement path and a driving plan. For example, the robot 11 with autonomous driving function and the autonomous vehicle 12 may use information sensed by a LiDAR, a radar or an imaging device to determine one or more of the movement path and the driving plan.

[0097] The robot 11 interacting with the autonomous vehicle 12 may exist separately from the autonomous vehicle 12, and may be linked to an autonomous driving function inside or outside the autonomous vehicle 12, or perform an operation associated with a user riding in the autonomous vehicle 12.

[0098] In this case, the robot 11 interacting with the autonomous vehicle 12 may control or assist the autonomous driving function of the autonomous vehicle 12 by obtaining sensor information on behalf of the autonomous vehicle 12 and providing the sensor information to the autonomous vehicle 12, or by obtaining the sensor information, generating surrounding environment information or object information, and providing the information to the autonomous vehicle 12.

[0099] Alternatively, the robot 11 interacting with the autonomous vehicle 12 may monitor the user riding in the autonomous vehicle 12, or control the functions of the autonomous vehicle 12 through interaction with the user. For example, in a case where the driver is determined to be in a drowsy state, the robot 11 may activate the autonomous driving function of the autonomous vehicle 12 or assist the control of the driving unit of the autonomous vehicle 12. Here, the functions of the autonomous vehicle 12 controlled by the robot 12 may include not only the autonomous driving function, but also functions provided by a navigation system or an audio system disposed inside the autonomous vehicle 12.

[0100] Alternatively, the robot 11 interacting with the autonomous vehicle 12 may provide information to the autonomous vehicle 12, or assist functions from the outside of the autonomous vehicle 12. For example, the robot 11 may provide traffic information including signal information and the like, such as intelligent traffic lights and the like, to the autonomous vehicle 12, or may interact with the autonomous vehicle 12 as in the case of an automatic charger for an electric vehicle to automatically connect the charger to a charging port.

[0101] <AI+Robot+XR>

[0102] The robot 11 may be implemented as a guide robot, a transport robot, a cleaning robot, a wearable robot, an entertainment robot, a pet robot, an unmanned flying robot, a drone, etc. by applying AI technology and XR technology.

[0103] The robot 11 applying XR technology may refer to a robot that serves as a target for control / interaction in XR images. In this case, the robot 11 may be different from the XR device 13 and may interoperate with the XR device 13.

[0104] When the robot 11, which is the target for control / interaction within the XR image, obtains sensor information from a sensor including an imaging device, the robot 11 or the XR device 13 may generate an XR image based on the sensor information, and the XR device 13 may output the generated XR image. In addition, the robot 11 may operate based on a control signal input through the XR device 13 or user interaction.

[0105] For example, a user may confirm an XR image corresponding to the viewpoint of the remotely connected robot 11 via an external device such as the XR device 13, and adjust the autonomous driving path, control operation or driving of the robot 11 through interaction, or confirm information about surrounding objects.

[0106] <AI+自主+XR>

[0107] The autonomous vehicle 12 may be implemented as a mobile robot, a vehicle, an unmanned aerial vehicle, etc. by applying AI technology and XR technology.

[0108] The autonomous vehicle 12 applying XR technology may refer to an autonomous vehicle provided with a device for providing XR images, or an autonomous vehicle that serves as a target for control / interaction in XR images. In particular, the autonomous vehicle 12, which is the target for control / interaction within the XR image, may be different from the XR device 13 and may interoperate with the XR device 13.

[0109] The autonomous vehicle 12 provided with a device for providing XR images may obtain sensor information from a sensor including an imaging device, and output an XR image generated based on the obtained sensor information. For example, since the autonomous vehicle 12 is provided with a HUD and outputs XR images, XR objects corresponding to real objects or objects on the screen may be provided to passengers.

[0110] In this case, when an XR object is output to the HUD, at least a part of the XR object may be output so as to overlap with a real object to which the passenger's gaze is directed. On the other hand, when the XR object is output to a display disposed 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 roads, other vehicles, traffic lights, traffic signs, two-wheeled vehicles, pedestrians, buildings, and the like.

[0111] When the autonomous vehicle 12, which is the target of control / interaction within the XR image, obtains sensor information from sensors including a camera device, the autonomous vehicle 12 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. Furthermore, the autonomous vehicle 12 can operate based on control signals input through external devices such as the XR device 13 or user interaction.

[0112] Extended Reality Technology

[0113] Extended Reality (XR) broadly refers to Virtual Reality (VR), Augmented Reality (AR), and Mixed Reality (MR). VR technology only provides real-world objects, backgrounds, etc., as computer graphics (CG) images. AR technology also provides CG images virtually generated on top of real-world object images. MR technology is a computer graphics technology that blends and combines virtual objects in the real world.

[0114] MR technology is similar to AR technology in that it displays both real and virtual objects together. However, the difference lies in that while AR technology uses virtual objects to complement real objects, MR technology uses both virtual and real objects as equal elements.

[0115] XR technology can be applied to HMDs, HUDs, mobile phones, tablet PCs, laptops, desktops, televisions, digital signage, etc., and devices that use XR technology can be called XR devices.

[0116] In the following, an electronic device for providing augmented reality according to embodiments of the present invention will be described in detail. In particular, a projector device for augmented reality and an electronic device including the projector device will be described in detail.

[0117] Figure 2 This is a block diagram illustrating the configuration of an extended reality electronic device 20 according to an embodiment of the present invention.

[0118] Reference Figure 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, a power supply unit 28, etc. It may not necessarily require... Figure 2 All components shown in the specification, and the electronic device 20 described herein may alternatively be implemented by more or fewer components.

[0119] More specifically, among the components described above, the wireless communication unit 21 may include one or more modules that allow 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. Furthermore, the wireless communication unit 21 may include one or more modules that connect the electronic device 20 to one or more networks.

[0120] The wireless communication unit 21 may include at least one of a broadcast receiving module, a mobile communication module, a wireless Internet module, a short-range communication module, and a location information module.

[0121] The input unit 22 may include a camera device or image input unit for receiving image signals, a microphone or audio input unit for receiving audio signals, or a user input unit (e.g., touch keys, buttons (mechanical keys), etc.) for receiving information from the user. Audio or image data collected from the input unit 22 can be analyzed and processed via user control commands.

[0122] The sensing unit 23 may include one or more sensors for sensing at least one of the following: internal information of the electronic device 20, information about the surrounding environment of the electronic device 20, and user information.

[0123] For example, sensing unit 23 may include at least one of the following: proximity sensor, illuminance sensor, touch sensor, accelerometer, magnetic sensor, G-sensor, gyroscope sensor, motion sensor, RGB sensor, infrared (IR) sensor, finger scanning sensor, ultrasonic sensor, optical sensor (e.g., capture device), microphone, battery gauge, environmental sensor (e.g., barometer, hygrometer, thermometer, radiation detection sensor, thermal sensor, gas sensor, etc.), and chemical sensor (e.g., electronic nose, healthcare sensor, biometric sensor, etc.). Meanwhile, the electronic device 20 described herein may utilize a combination of information sensed from at least two or more of these sensors.

[0124] Output unit 24 can be configured to output various types of information related to vision, hearing, or touch, and may include at least one of a display unit, an audio output unit, a haptic module, or an optical output unit. The display unit may have an interlayer or integrated structure with the touch sensor to realize a touchscreen. The touchscreen may provide an output interface between the augmented reality electronics 20 and the user, and also serve as a user input unit that provides an input interface between the augmented reality electronics 20 and the user.

[0125] Interface unit 25 serves as an interface with various types of external devices connected to electronic device 20. Through interface unit 25, electronic device 20 can receive virtual reality or augmented reality content from external devices and perform mutual interaction by exchanging various input signals, sensing signals, and data.

[0126] For example, interface unit 25 may include at least one of a wired / wireless headphone port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video input / output (I / O) port, and a headphone port.

[0127] In addition, memory 26 stores data supporting various functions of electronic device 20. Memory 26 may store multiple applications or programs running on electronic device 20, as well as data or instructions for the operation of electronic device 20. At least some of these applications may be downloaded from an external server via wireless communication. Furthermore, at least some of these applications may be present on electronic device 20 at the time of manufacture for basic functions of electronic device 20 (e.g., receiving calls, making calls, receiving messages, and sending messages).

[0128] In addition to operations related to the application, 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 described above.

[0129] Additionally, the control unit 27 can execute applications stored in the memory 26 to control at least some of the components and provide appropriate information or processing functions to the user. Furthermore, the control unit 27 can operate at least two components included in the electronic device 20 in combination to execute applications.

[0130] Additionally, the control unit 27 can use a gyroscope sensor, gravity sensor, motion sensor, etc., included in the sensing unit 23 to detect movement of the electronic device 20 or the user. Alternatively, the control unit 27 can use sensors included in the sensing unit 23, such as a proximity sensor, light sensor, magnetic sensor, infrared sensor, ultrasonic sensor, or optical sensor, to detect objects approaching the electronic device 20 or the user. Furthermore, the control unit 27 can also detect user movement using sensors provided in a controller that operates in conjunction with the electronic device 20.

[0131] In addition, the control unit 27 can use the application stored in the memory 26 to perform the operation (or function) of the electronic device 20.

[0132] The power supply unit 28 receives external and internal power under the control of the control unit 27 and supplies power to the various components included in the electronic device 20. The power supply unit 28 includes a battery, which may be provided in a built-in or replaceable form.

[0133] According to the various embodiments described below, at least some of the components can operate cooperatively with each other to realize the operation, control, or control method of the electronic device. Furthermore, the operation, control, or control method of the electronic device can be implemented on the electronic device by executing at least one application program stored in memory 26.

[0134] In the following description, the electronic device described as an example of the present invention will be referred to an embodiment applied to an HMD. However, embodiments of the electronic device according to the present invention may also include devices such as mobile phones, smartphones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation systems, tablet personal computers (PCs), tablet PCs, ultrabooks, and wearable devices. In addition to HMDs, wearable devices may include watch-type terminals (smartwatches), contact lenses, VR / AR / MR glasses, etc.

[0135] Figure 3 This is a perspective view of an augmented reality electronic device according to an embodiment of the present invention.

[0136] like Figure 3 The electronic device shown, according to an embodiment of the present invention, may include a frame 100, a projector device 200, and a display unit 300.

[0137] The electronic device can be provided as an eyeglass-type electronic device (smart glasses). The eyeglass-type electronic device can be formed to be worn on the human head and can include a frame (shell, housing, etc.) 100 for this purpose. The frame 100 can be formed of a flexible material to facilitate wearing.

[0138] The frame 100 is supported on the head and has space for mounting various components. As shown, electronic components such as a projector device 200, a user input unit 130, or an audio output unit 140 can be mounted on the frame 100. In addition, a lens covering at least one of the left and right eyes can be detachably mounted on the frame 100.

[0139] As shown in the figure, the frame 100 may be in the form of glasses worn on the user's face, but the present invention is not necessarily limited to this, and the frame 100 may also be in the form of goggles worn close to the user's face.

[0140] Frame 100 may include a front frame 110 having at least one opening and an opening in the y-direction (see [link]). Figure 3 A pair of side frames 120 that extend and intersect with the front frame 110 and are parallel to each other.

[0141] Frame 100 may have a length DI in the x-direction and a length LI in the y-direction, which may be the same as or different from each other.

[0142] A projector device 200 is provided to control various electronic components installed in an electronic device. The projector device 200 can be used interchangeably with "light output device", "light projector device", "light radiation device", "optical device", etc.

[0143] The projector device 200 can generate an image or a video of a series of images to be displayed to a user. The projector device 200 may include an image source panel for generating the image, multiple lenses for diffusing and converging the light generated from the image source panel, etc.

[0144] The projector device 200 can be fixed to either of the two side frames 120. For example, the projector device 200 can be fixed inside or outside either side frame 120, or embedded and integrally formed in either side frame 120. Alternatively, the projector device 200 can be fixed to the front frame 110, or disposed separately from the electronic device.

[0145] The display unit 300 can be implemented in the form of an HMD (Head-Mounted Device). An HMD is a display solution that is mounted on the head and displays video directly in front of the user's eyes. When the user wears the electronic device, the display unit 300 can be configured to correspond to at least one of the left and right eyes to provide video directly in front of the user's eyes. In this figure, the display unit 300 is shown located at the portion corresponding to the right eye, outputting video toward the user's right eye. However, as described above, the display unit 300 is not limited to this and can be positioned in front of both the left and right eyes.

[0146] The display unit 300 can display images generated by the projector device 200 to the user while the user visually recognizes the external environment. For example, the display unit 300 can use a prism to project images onto the display area.

[0147] Additionally, the display unit 300 can be formed to be light-transmitting, allowing the projected image and the forward natural field of view (i.e., the range viewed by the user's eyes) to be seen simultaneously. For example, the display unit 300 can be semi-transparent and can be formed from optical elements including glass.

[0148] Alternatively, the display unit 300 can be inserted into and fixed to an opening included in the front frame 110, or it can be located on the rear side of the opening (i.e., between the opening and the user) to be fixed to the front frame 110. In this figure, the case where the display unit 300 is located on the rear surface of the opening and fixed to the front frame 110 is shown as an example; however, unlike this, the display unit 300 can be positioned and fixed at various locations within the frame 100.

[0149] like Figure 3 As shown, in the electronic device, when image light for an image from the projector device 200 is incident on one side of the display unit 300, the image light is emitted through the display unit 300 to the other side to display the image generated by the projector device 200 to the user.

[0150] Therefore, a user can view the external environment through the opening in frame 100 while simultaneously viewing the image generated by projector device 200. In other words, the image output by display unit 300 may appear to overlap with the natural field of view. Electronic devices can use this display characteristic to provide augmented reality (AR), in which virtual images are overlaid on real images or backgrounds and presented as a single image.

[0151] In addition to the operations described above, the external environment and the image generated by the projector device 200 can be provided to the user with a time difference that is imperceptible to a human. For example, within a frame, the external environment can be provided to the user during one segment, and the video from the projector device 200 can be provided to the user during another segment.

[0152] Alternative sites can provide both overlap and time difference.

[0153] Figures 4 to 6 This is a conceptual diagram used to describe various display methods applicable to a display unit according to an embodiment of the present invention.

[0154] Specifically, Figure 4 This is a view used to describe an embodiment of a prism-type optical element. Figure 5 These are views used to describe embodiments of waveguide-type optical elements, and Figure 6 This is a view used to describe an implementation of a surface-reflective optical element.

[0155] like Figure 4 As shown, the prism-type optical element can be used in the display unit 300-1 according to an embodiment of the present invention.

[0156] In the implementation method, such as Figure 4The surface on which the image light is incident and the surface from which the image light is emitted, as shown in (a), is a flat glass optical element with a flat surface, or as shown in (a). Figure 4 The image light shown in (b) is formed from its emitting surface 300b into a free-form glass optical element that is a curved surface without a specific radius of curvature and can be used as a prism-type optical element.

[0157] The flat glass optical element receives image light generated by the projector device 200 through its flat side surface, reflects the image light using a total reflection mirror 300a disposed within the flat glass optical element, and emits the image light toward the user. Here, the total reflection mirror 300a disposed inside the flat glass optical element can be formed inside the flat glass optical element using a laser.

[0158] The freeform glass optical element can be formed to be thinner as it moves further away from the incident surface, and can receive the image light generated by the projector device 200 through its side surface having a curved surface, totally reflect the image light inside the freeform glass optical element, and emit the image light toward the user.

[0159] like Figure 5 As shown, waveguide optical elements or light-guide optical elements (LOEs) can be used in display unit 300-2 according to another embodiment of the present invention.

[0160] In implementation methods, waveguide-type or optical guide-type optical elements may include, for example: Figure 5 The partial mirror (beam splitter) type glass optical element shown in (a), such as Figure 5 The sawtooth prism-type glass optical element shown in (b), such as Figure 5 The glass optical element with diffractive optical element (DOE) shown in (c), such as Figure 5 The glass optical element with holographic optical element (HOE) shown in (d) is as follows: Figure 5 The glass optical element with a passive grating shown in (e), or as shown in (e), Figure 5 The glass optical element with an active grating shown in (f).

[0161] like Figure 5 The partial reflector (segmented beam splitter) type glass optical element shown in (a) may have a total reflection mirror 301a on the side where the optical image enters and a partial reflector (segmented beam splitter) 301b on the side where the optical image is emitted.

[0162] Therefore, the optical image generated by the projector device 200 can be totally reflected by the total reflection mirror 301a inside the glass optical element, and the totally reflected optical image is partially separated and emitted by the partial reflection mirror 301b when guiding light along the length direction of the glass, and can be visually recognized by the user.

[0163] In such Figure 5 In the sawtooth prism type glass optical element shown in (b), image light from the projector device 200 can be incident diagonally onto the side surface of the glass, undergo total internal reflection inside the glass, and be emitted to the outside of the glass through the sawtooth-shaped protrusions 302 provided on the side from which the optical image is emitted, so that the optical image can be visually recognized by the user.

[0164] like Figure 5 The glass optical element with diffractive optical elements (DOE) shown in (c) may have a first diffraction unit 303a disposed on the surface on which the optical image is incident, and a second diffraction unit 303b disposed on the surface from which the optical image is emitted. The first diffraction unit 303a and the second diffraction unit 303b may be disposed in the form of patterning a specific pattern on the surface of the glass or attaching a separate diffraction film to the surface of the glass.

[0165] Therefore, the optical image generated by the projector device 200 can be incident and diffracted through the first diffraction unit 303a, be totally reflected and guided along the length of the glass, and emitted through the second diffraction unit 303b so that it can be visually recognized by the user.

[0166] like Figure 5 The glass optical element with HOE shown in (d) can have an output coupler 304 disposed inside the glass on the side from which the optical image is emitted. Therefore, the optical image from the projector device 200 can be incident diagonally through the side surface of the glass, guided along the length of the glass while being totally internally reflected, emitted by the output coupler 304, and visually recognized by the user. With slight modifications to the structure, such HOEs can be further subdivided into structures with passive gratings and structures with active gratings.

[0167] like Figure 5 The glass optical element with a passive grating shown in (e) may have an inlet coupler 305a disposed on the surface opposite the glass surface on the side where the optical image enters, and an outlet coupler 305b disposed on the surface opposite the glass surface on the side where the optical image is emitted. Here, the inlet coupler 305a and the outlet coupler 305b may be disposed in the form of a film having a passive grating.

[0168] Therefore, the optical image on the glass surface on the incident side of the glass can be totally internally reflected by the ingress coupler 305a set on the opposite surface, guided along the length of the glass, emitted by the egress coupler 305b through the opposite side of the glass, and visually recognized by the user.

[0169] like Figure 5 The glass optical element with an active grating shown in (f) has an inlet coupler 306a formed as an active grating inside the glass on the side where the optical image enters, and an outlet coupler 306b formed as an active grating inside the glass on the side where the optical image is emitted.

[0170] Therefore, the optical image input into the glass can be totally internally reflected from the input coupler 306a, guided along the length of the glass, emitted to the outside of the glass through the output coupler 306b, and visually recognized by the user.

[0171] According to the modified example, needle-type optical elements can be used as display units.

[0172] Furthermore, since multiple flat surfaces, each with a different incident angle of the optical image, are formed into a single piece of glass, therefore, as Figure 6 The freeform combiner-type surface-reflective optical element shown in (a) can be formed with a freeform combiner glass having an integrally curved surface to perform the function of a combiner. In such a freeform combiner glass, an optical image can enter each region at different incident angles and can be output to the user.

[0173] like Figure 6 The flat HOE type surface reflective optical element shown in (b) can be provided with HOE 311 coated or patterned on the surface of flat glass, and the optical image incident from the projector device 200 can pass through the holographic optical element 311, be reflected from the surface of the glass, pass through the holographic optical element 311 again, and be emitted toward the user.

[0174] like Figure 6 The freeform HOE-type surface-reflective optical element shown in (c) can be provided with HOE 313 coated or patterned on the surface of the freeform glass, and its operating principle can be the same as... Figure 6 The operating principle is the same as that described in (b).

[0175] Figure 7 This is a perspective view of a projector device according to one embodiment, and Figure 8 This is an exploded perspective view of a projector device according to one embodiment.

[0176] Reference Figure 7 and Figure 8 According to one embodiment, a projector device 200 may include an outer lens LS, a lens barrel 210, a substrate 220, a light source unit 230, a light guide LG, a lens FL, and a cover 240.

[0177] The outer lens LS can be inserted into the lens barrel 210. That is, the lens barrel 210 can be located inside the projector device 200 and can accommodate the outer lens LS. In addition, the lens barrel 210 can accommodate the light source unit 230, the light guide LG, and the lens LF.

[0178] Figure 9 This is a perspective view of the lens barrel in a projector device according to one embodiment.

[0179] Reference Figures 7 to 9 The lens barrel 210 may have spaces for accommodating the components described above or other optical elements. For example, the lens barrel 210 may include a first recess and a second recess. The outer lens LS may be disposed in the first recess. Additionally, the light guide LG may be disposed in the second recess. Furthermore, in the lens barrel 210, the first recess and the second recess may be spaced apart from each other. That is, the lens barrel 210 may have spaces (e.g., recesses) for disposing of the outer lens LS and the light guide LG, and these spaces may be separate or spaced apart from each other. Therefore, the insertion or coupling of the outer lens and the light guide can be facilitated.

[0180] Alternatively, when spaces are connected to each other, the projector device can be miniaturized.

[0181] The lens barrel 210 may include a plurality of holes connected to the second recess. These holes may be located on the side surface of the lens barrel 210. Therefore, light emitted from the light source unit 230, which will be described later, can be incident on the light guide LG. Furthermore, light incident on the light guide LG can be reflected and can pass through or be transmitted through the outer lens LS, thereby being provided to the waveguide described above. For this purpose, the first and second recesses can be connected to each other through through-holes. That is, light reflected by the light guide LG in the second recess can be provided to the outer lens LS in the first recess through the through-holes. Additionally, as described above, light from the light source unit 230 can be emitted through the plurality of holes provided on the side surface of the lens barrel 210 and can be incident on the light guide LG inside the lens barrel 210.

[0182] Figure 10 This is a perspective view showing the state of coupling of the lens, light source unit, and light guide in a projector device according to one embodiment, and Figure 11 This is a perspective view of the light source unit in a projector device according to one embodiment.

[0183] Reference Figure 7 , Figure 8 , Figure 10 and Figure 11 The light guide LG can be formed from at least one prism. For example, the light guide LG can be formed by coupling or joining multiple prisms. The light guide LG may include prisms. Prisms can be used as reflective elements and may include, for example, X-prisms. In embodiments, the light guide LG may have a structure in which two or more prisms are coupled to each other. In addition, the light guide LG may be a non-polarizing prism. That is, the light guide LG may not polarize the light emitted from light sources 232a, 232b, and 232c.

[0184] Additionally, the light guide LG may include two or more coated surfaces (reflective members or reflective sheets). One of the two or more coated surfaces may reflect light with a first wavelength and light with a second wavelength, and may transmit light with a third wavelength. That is, the coated surface may reflect light in a predetermined wavelength band. Therefore, for light emitted from each of the plurality of light sources 232a, 232b, and 232c, it is desirable that light in the wavelength band be reflected by the light guide LG. For example, light that has passed through the light guide LG may be provided to the outer lens LS.

[0185] The light guide LG can be disposed inside the lens barrel 210. The light guide LG can be disposed in the internal accommodating space of the lens barrel 210.

[0186] The light guide LG can be connected to the lens FL. The light guide LG can be in contact with the lens FL. The lens FL can be disposed on multiple side surfaces of the light guide LG. A single lens FL can be disposed on one side surface of the light guide LG. The first lens FL1, the second lens FL2, and the third lens FL3 can be disposed on different adjacent side surfaces of the light guide LG.

[0187] 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. In addition, the light guide LG can be in contact with the lens FL.

[0188] Alternatively, the lens FL can be coupled to the light guide LG. In this case, the lens FL can be coupled to the light guide LG via a bonding member or a coupling member. The bonding member or coupling member can be located between the lens FL and the light guide LG.

[0189] The lens FL can be located on the outer surface of the light guide LG, and one or more lens FLs can be provided. For example, the number of lens FLs can correspond to the number of light sources in the light source unit 230. When the number of light sources is three, the number of lens FLs can also be three.

[0190] For example, a lens FL may include a first lens FL1, a second lens FL2, and a third lens FL3 corresponding to a light source. The first lens FL1 may correspond to a first light source unit 230a. The second lens FL2 may correspond to a second light source unit 230b. The third lens FL3 may correspond to a third light source unit 230c. That is, the first to third lenses FL1, FL2, and FL3 can respectively receive light emitted from the first to the third light source units 230a, 230b, and 230c.

[0191] Additionally, the lens FL can be connected to the connecting substrates 231a, 231b, and 231c of the light source unit 230. The lens FL can be positioned adjacent to the connecting substrates 231a, 231b, and 231c. For example, the lens FL can be in contact with the connecting substrates 231a, 231b, and 231c. That is, the lens FL can be in contact with the connecting substrates 231a, 231b, and 231c. Furthermore, the connecting substrate 231 can be in contact with the lens FL.

[0192] Additionally, the lens FL can be coupled to the connecting substrates 231a, 231b, and 231c. In this case, the lens FL can be coupled to the connecting substrates 231a, 231b, and 231c via a bonding member or a coupling member. The bonding member or coupling member can be located between the lens FL and the connecting substrates 231a, 231b, and 231c.

[0193] The first lens FL1, the second lens FL2, and the third lens FL3 can correspond to the first connecting substrate 231a, the second connecting substrate 231b, and the third connecting substrate 231c, respectively. The first lens FL1 can correspond to the first connecting substrate 231a. The second lens FL2 can correspond to the second connecting substrate 231b. The third lens FL3 can correspond to the third connecting substrate 231c.

[0194] Since the lens FL is configured to be coupled to the connecting substrates 231a, 231b, and 231c, the alignment accuracy and reliability between the lens FL and the connecting substrate 231 can be improved. Furthermore, by attaching the lens FL to the connecting substrates 231a, 231b, and 231c so that it is adjacent to the light source, the light emission integration density can be increased, and since the arrangement space of the light source unit 230 is reduced, miniaturization of the projector device and manufacturing freedom can be facilitated.

[0195] One or more light source units 230 can be provided. As described above, the following description will be based on three light source units. 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.

[0196] The first light source unit 230a may overlap with the outer lens LS in the second direction (Y-axis direction). The second direction (Y-axis direction) may correspond to the direction in which light is 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 toward the display unit described above.

[0197] The second light source unit 230b and the third light source unit 230c can be positioned facing each other. Alternatively, the second light source unit 230b and the third light source unit 230c can be positioned opposite each other. The second light source unit 230b and the third light source unit 230c can overlap each other in a first direction (X-axis direction). The first direction (X-axis direction) can be a direction perpendicular to the second direction (Y-axis direction). In addition, the third direction (Z-axis direction) can be a direction perpendicular to the first and second directions.

[0198] Furthermore, the first light source unit 230a can be located in the region between the second light source unit 230b and the third light source unit 230c. Additionally, the direction of light emitted from the second light source unit 230b and the direction of light emitted from the third light source unit 230c can be opposite to each other.

[0199] Each of the light source units may include a corresponding connecting substrate among connecting substrates 231a, 231b and 231c and a corresponding light source among light sources 232a, 232b and 232c.

[0200] Connecting substrates 231a, 231b, and 231c can connect substrate 220 to light sources 232a, 232b, and 232c. Connecting substrates 231a, 231b, and 231c can also electrically connect substrate 220 to light sources 232a, 232b, and 232c. One or more connecting substrates can be provided. Connecting substrates 231a, 231b, and 231c can include a first connecting substrate 231a, a second connecting substrate 231b, and a third connecting substrate 231c. Connecting substrates 231a, 231b, and 231c can be disposed between the respective light sources and the substrates. Because connecting substrates 231a, 231b, and 231c are disposed between substrate 220 and light sources 232a, 232b, and 232c, wiring connections between substrate 220 and light sources 232a, 232b, and 232c can be facilitated. Furthermore, when light sources 232a, 232b, and 232c are disposed on substrate 220, they can be first disposed on connecting substrates 231a, 231b, and 231c, and then their positions can be adjusted. Therefore, the positional arrangement of light sources 232a, 232b, and 232c can be facilitated.

[0201] The first connecting substrate 231a can be electrically connected to the first light source 232a and the substrate. The first connecting substrate 231a can be disposed between the first light source 232a and the substrate. The first connecting substrate 231a can overlap with the first light source 232a and the substrate in a second direction. The second connecting substrate 231b can be electrically connected to the second light source 232b and the substrate. The second connecting substrate 231b can be disposed between the second light source 232b and the substrate. The second connecting substrate 231b can overlap with the second light source 232b and the substrate in a first direction. The third connecting substrate 231c can be electrically connected to the third light source 232c and the substrate. The third connecting substrate 231c can be disposed between the third light source 232c and the substrate. The third connecting substrate 231c can overlap with the third light source 232c and the substrate in a first direction. The second connecting substrate 231b can be positioned facing the third connecting substrate 231c. The second connecting substrate 231b and the third connecting substrate 231c can overlap each other in the first direction.

[0202] Connecting substrates 231a, 231b, and 231c can contact lenses FL. First connecting substrate 231a can contact first lens FL1. Second connecting substrate 231b can contact second lens FL2. Third connecting substrate 231c can contact third lens FL3. Light sources 232a, 232b, and 232c can be disposed in the space between connecting substrates 231a, 231b, and 231c and their respective lenses FL. Since connecting substrates 231a, 231b, and 231c are coupled to lenses FL, the alignment accuracy and reliability between lenses FL and connecting substrates 231a, 231b, and 231c can be improved. Furthermore, by attaching lenses FL to connecting substrates 231a, 231b, and 231c to be adjacent to light sources, the light-emitting integration density can be increased, and since the arrangement space of light source unit 230 is reduced, miniaturization of the projector device and manufacturing freedom are facilitated.

[0203] Connecting members for bonding connecting substrates 231a, 231b, and 231c to substrate 220 may be disposed between connecting substrates 231a, 231b, and 231c and substrate 220. The connecting members may include epoxy resin, film, or copper pads. Conductive copper pads may be soldered between connecting substrates 231a, 231b, and 231c and substrate 220.

[0204] Light sources 232a, 232b, and 232c can emit light. For example, light emitted from light sources 232a, 232b, and 232c can be incident on the light guide LG. Alternatively, one or more light sources 232a, 232b, and 232c can be provided. Light sources 232a, 232b, and 232c may include a first light source 232a, a second light source 232b, and a third light source 232c. Furthermore, light sources 232a, 232b, and 232c can be disposed on corresponding connection substrates.

[0205] In other words, in the light source unit 230, the number of light sources 232a, 232b, and 232c can be single or multiple. For example, the number of light sources 232a, 232b, and 232c can be multiple, and it can 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 can emit light in the same direction or in different directions. For example, the second light source 232b and the third light source 232c can be positioned facing each other. The second light source 232b and the third light source 232c can be positioned to overlap each other in a first direction (X-axis direction). In addition, the light guide LG can be located between the second light source 232b and the third light source 232c. Therefore, the light guide LG can overlap with the second light source 232b and the third light source 232c.

[0206] The first light source 232a to the third light source 232c can emit light toward the light guide LG. Furthermore, the first light source 232a can overlap with the light guide LG in a second direction. Using this configuration, the projector device 200 can have a compact light source unit 230.

[0207] In addition, the first light source 232a, the second light source 232b, and the third light source 232c can emit light with wavelengths or colors that are partially the same as or different from each other. For example, the first light source 232a, the second light source 232b, and the third light source 232c can each emit red light, green light, and blue light.

[0208] Light sources 232a, 232b, and 232c can be disposed on connecting substrates 231a, 231b, and 231c, respectively. Light sources 232a, 232b, and 232c can be electrically connected to connecting substrates 231a, 231b, and 231c, respectively. Light sources 232a, 232b, and 232c can be disposed between the respective connecting substrates 231a, 231b, and 231c and the respective lenses FL1, FL2, and FL3. A first light source 232a can be disposed on a first connecting substrate 231a. A second light source 232b can be disposed on a second connecting substrate 231b. A third light source 232c can be disposed on a third connecting substrate 231c. Light sources 232a, 232b, and 232c can be attached to one surface of connecting substrates 231a, 231b, and 231c, respectively, using surface mount technology (SMT) or die-attachment methods.

[0209] The first light source 232a can overlap with the first lens FL1 in the second direction. The first connecting substrate 231a on which the first light source 232a is disposed can contact the first lens FL1, and the first light source 232a can be accommodated in the internal space of the first lens FL1. Since the first light source 232a is disposed to overlap with the first lens FL1 in the second direction, the width of the light source unit 230 can be reduced, thereby miniaturizing the projector device 200 and improving manufacturing flexibility.

[0210] A cover 240 may be disposed outside the lens barrel 210 and may surround the lens barrel 210. The cover 240 may be coupled to the lens barrel 210. The cover 240 may be coupled to the upper surface of the lens barrel 210 and may protect the internal components of the lens barrel 210. The cover 240 may protect the light guide LG and lens FL inside the lens barrel 210. Therefore, the projector device 200 according to the embodiment can provide improved reliability.

[0211] 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 disposed outside the outer lens LS housed in a first recess of the lens barrel 210, thereby preventing the outer lens LS from detaching. The second spacer may be located within the lens barrel 210. The second spacer may be disposed outside the light guide LG and the lens FL. Therefore, the light guide LG and the lens FL may not detach from the lens barrel 210. In other words, the second spacer may prevent the light guide LG and the lens FL from detaching from the lens barrel 210. The housing may be located outside the lens barrel 210. The housing may surround the lens barrel 210. For example, the housing may be configured to surround at least one region of the lens barrel 210. Furthermore, the housing may include a space for accommodating a light source. Additionally, the housing may include at least one housing aperture. The light source may be disposed in the housing aperture. Furthermore, light emitted from the light source may be provided to the lens FL and the light guide LG through at least one housing aperture. The housing may be disposed outside the lens barrel 210 and may include a space for accommodating the lens barrel 210 and the light source unit 230.

[0212] Figure 12 This is a perspective view of a substrate in a projector device according to one embodiment. Figure 13 This is a perspective view showing the coupling state of the lens, light source unit, light guide, and substrate in a projector device according to one embodiment. Figure 14 and Figure 15 This is a side view showing the coupling state of the lens, light source unit, light guide, and substrate in a projector device according to one embodiment. Figure 16 This is a rear view showing the coupling state of the lens, light source unit, light guide, and substrate in a projector device according to one embodiment. Figure 17 This is a bottom view showing the coupling state of the lens, light source unit, light guide, and substrate in a projector device according to one embodiment, and Figure 18 It shows along Figure 13 The cross-sectional view of the cross section intercepted by line AA' in the diagram.

[0213] Reference Figures 12 to 18 The projector device 200 may include a substrate 220 configured to surround the light guide LG.

[0214] The substrate 220 can be connected to the light sources 232a, 232b, and 232c via connecting substrates 231a, 231b, and 231c, and can transmit electrical energy to enable light emission. The substrate 220 can be located at the outermost part of the lens barrel 210. The substrate 220 may include a lower substrate 221, first side substrates to third side substrates 222a, 222b, and 222c, and a support substrate 223.

[0215] The lower substrate 221 can be disposed at the lower part of the projector device 200. The lower substrate 221 can be disposed below the light guide LG. The lower substrate 221 can overlap with the light guide LG in a third-direction direction. The lower substrate 221 can be spaced a predetermined distance from the lower surface of the light guide LG in a third-direction direction. The lower substrate 221 can be connected to the first side substrate to the third side substrates 222a, 222b, and 222c and the support substrate 223. The width of the lower substrate 221 in a first direction can be greater than the width of the light guide LG in the first direction. The width of the lower substrate 221 in a second direction can be greater than the width of the light guide LG in the second direction.

[0216] The lower substrate 221 may include a first extension to a third extension 221a, 221b, and 221c. The first extension to the third extension 221a, 221b, and 221c may be portions extending outward from the lower substrate 221. The first extension 221a may extend from the lower substrate 221 in a first direction. The first extension 221a may be connected to a first side substrate 222a. The second extension 221b and the third extension 221c may extend from the lower substrate 221 in a second direction. The second extension 221b and the third extension 221c may extend in opposite directions about the second direction. The second extension 221b may be connected to a second side substrate 222b. The third extension 221c may be connected to a third side substrate 222c.

[0217] The first to third extensions 221a, 221b, and 221c may each include a plurality of sub-extensions. The plurality of sub-extensions may be spaced apart from each other and may extend parallel to each other. The first extension 221a may include a first sub-extension 221a-1 and a second sub-extension 221a-2. The first sub-extension 221a-1 and the second sub-extension 221a-2 may be spaced apart from each other in a second direction and may be arranged parallel to each other. The first sub-extension 221a-1 and the second sub-extension 221a-2 may each be bent upwards in a third direction and connected to the first side substrate 222a. Since each of the first to third extensions 221a, 221b, and 221c includes a plurality of sub-extensions, the first to third side substrates 222a, 222b, and 222c can be more easily bent from the lower substrate 221.

[0218] The first to third side substrates 222a, 222b, and 222c may be portions that bend upwards from the lower substrate 221 on a third side. The first to third side substrates 222a, 222b, and 222c may be connected to connecting substrates 231a, 231b, and 231c. The first to third side substrates 222a, 222b, and 222c may include openings. The first to third side substrates 222a, 222b, and 222c may each include multiple recesses. Since the projector device 200 includes the first to third side substrates 222a, 222b, and 222c connected to light sources, current can be supplied to three light sources simultaneously, and therefore, the optical performance of the projector device can be improved. Furthermore, since all the side substrates of the first to third side substrates 222a, 222b, and 222c are bent from a lower substrate 221, the alignment accuracy of the light sources can be improved, and therefore, optical losses can be minimized.

[0219] The first side substrate 222a can be bent upward from the end of the first extension 221a of the lower substrate 221. The first side substrate 222a can contact the first connecting substrate 231a. The first side substrate 222a can be connected to the first light source 232a through the first connecting substrate 231a and can transmit electrical energy, causing the first light source 232a to emit light.

[0220] The first side substrate 222a may include a first opening h1. The first opening h1 may be an opening disposed inside the first side substrate 222a. The first opening h1 may overlap with the first light source 232a in a first direction.

[0221] The first side substrate 222a may include a first recess C1 and a second recess C2. The first recess C1 and the second recess C2 may be disposed in opposite side surfaces of the first side substrate 222a. The first recess C1 and the second recess C2 may be spaced apart from each other in a second direction. The width of each of the first recess C1 and the second recess C2 in a third direction may be greater than the width of the first opening h1 in the third direction. The width of each of the first recess C1 and the second recess C2 in the second direction may be less than the width of the first opening h1 in the second direction.

[0222] A connecting member (not shown) may be disposed between the first side substrate 222a and the first connecting substrate 231a, and the connecting member may overlap with the first recess C1 and the second recess C2 in a first direction. A portion of the connecting member may overlap with the first recess C1 and the second recess C2 in the first direction, while another portion may not overlap with the first recess C1 and the second recess C2. Since the connecting member is disposed between the first side substrate 222a and the first connecting substrate 231a, the first side substrate 222a and the first connecting substrate 231a can be fixed in contact with each other, thereby improving the reliability and light-emitting integration density of the projector device 200. The connecting member may include copper pads and can be soldered between the first side substrate 222a and the first connecting substrate 231a.

[0223] The second side substrate 222b can be bent upward from the end of the second extension 221b of the lower substrate 221. The second side substrate 222b can contact the second connecting substrate 231b. The second side substrate 222b can be connected to the second light source 232b through the second connecting substrate 231b, and can transmit electrical energy, causing the second light source 232b to emit light.

[0224] The second side substrate 222b may include a second opening h2. The second opening h2 may be an opening disposed inside the second side substrate 222b. The second opening h2 may overlap with the second light source 232b in a second direction.

[0225] The second side substrate 222b may include a third recess C3 and a fourth recess C4. The third recess C3 and the fourth recess C4 may be disposed in opposite side surfaces of the second side substrate 222b. The third recess C3 and the fourth recess C4 may be spaced apart from each other in a first direction. The width of each of the third recess C3 and the fourth recess C4 in a third direction may be greater than the width of the second opening h2 in the third direction. The width of each of the third recess C3 and the fourth recess C4 in the first direction may be less than the width of the second opening h2 in the first direction.

[0226] A connecting member (not shown) may be disposed between the second side substrate 222b and the second connecting substrate 231b, and the connecting member may overlap with the third recess C3 and the fourth recess C4 in the second direction. A portion of the connecting member may overlap with the third recess C3 and the fourth recess C4 in the second direction, while another portion may not overlap with the third recess C3 and the fourth recess C4. Since the connecting member is disposed between the second side substrate 222b and the second connecting substrate 231b, the second side substrate 222b and the second connecting substrate 231b can be fixed in contact with each other, thereby improving the reliability and light-emitting integration density of the projector device 200. The connecting member may include copper pads and can be soldered between the second side substrate 222b and the second connecting substrate 231b.

[0227] The third side substrate 222c can be bent upward from the end of the third extension 221c of the lower substrate 221. The third side substrate 222c can contact the third connecting substrate 231c. The third side substrate 222c can be connected to the third light source 232c through the third connecting substrate 231c and can transmit electrical energy, causing the third light source 232c to emit light.

[0228] The third side substrate 222c may include a third opening h3. The third opening h3 may be an opening disposed inside the third side substrate 222c. The third opening h3 may overlap with the third light source 232c in the second direction.

[0229] The third side substrate 222c may include a fifth recess C5 and a sixth recess C6. The fifth recess C5 and the sixth recess C6 may be disposed in opposite side surfaces of the third side substrate 222c. The fifth recess C5 and the sixth recess C6 may be spaced apart from each other in a first direction. The width of each of the fifth recess C5 and the sixth recess C6 in a third direction may be greater than the width of the third opening h3 in a third direction. The width of each of the fifth recess C5 and the sixth recess C6 in the first direction may be less than the width of the third opening h3 in the first direction.

[0230] A connecting member (not shown) may be disposed between the third side substrate 222c and the third connecting substrate 231c, and the connecting member may overlap with the fifth recess C5 and the sixth recess C6 in the second direction. A portion of the connecting member may overlap with the fifth recess C5 and the sixth recess C6 in the second direction, while another portion may not overlap with the fifth recess C5 and the sixth recess C6. Since the connecting member is disposed between the third side substrate 222c and the third connecting substrate 231c, the third side substrate 222c and the third connecting substrate 231c can be fixed in contact with each other, thereby improving the reliability and light-emitting integration density of the projector device 200. The connecting member may include copper pads and may be soldered between the third side substrate 222c and the third connecting substrate 231c.

[0231] The support substrate 223 may be a portion of the lower substrate 221 that is bent in a direction opposite to the bending direction of the first side substrate to the third side substrates 222a, 222b, and 222c. The support substrate 223 may be bent from the lower substrate 221 in a third direction. The support substrate 223 may not overlap with the first side substrate 222a in the third direction. The support substrate 223 may protrude toward the lower part of the projector device 200 to fix and support the projector device 200.

[0232] Although embodiments have been described above, they are merely examples and are not intended to limit the invention. It will be apparent that those skilled in the art can make various modifications and applications not described above without departing from the essential characteristics of the embodiments. For example, each component specifically shown in the embodiments can be implemented using modifications. Furthermore, it should be understood that differences associated with such variations and applications are included within the scope of the invention as defined in the appended claims.

Claims

1. A projector device, comprising: Optical guide; A substrate configured to surround the light guide; as well as 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 that bends vertically from the lower substrate. The first connecting substrate is in contact with the first side substrate and the first lens.

2. The projector device according to claim 1, further comprising: A first light source disposed on the first connecting substrate. The first light source is disposed between the first connecting substrate and the first lens.

3. The projector device according to claim 2, wherein, The first side substrate is spaced apart from the light guide in a first direction, and The substrate further includes a second side substrate and a third side substrate spaced apart from each other in a second direction perpendicular to the first direction.

4. The projector device according to claim 3, further comprising: A second connecting substrate and a third connecting substrate that are in contact with the second side substrate and the third side substrate, respectively.

5. The projector device according to claim 4, further comprising: The second light source and the third light source are respectively disposed on the second connecting substrate and the third connecting substrate.

6. The projector device according to claim 3, wherein, The first side substrate includes a first opening, and The first opening overlaps with the first light source in the first direction.

7. The projector device according to claim 6, wherein, The first side substrate includes a first recess and a second recess, which are respectively disposed in opposite side surfaces spaced apart from the first opening in the second direction.

8. The projector device according to claim 3, wherein, The substrate includes a support substrate that is bent from the lower substrate in a direction opposite to that from the first side substrate to the third side substrate.

9. The projector device according to claim 7, comprising: A connecting member disposed between the first side substrate and the first connecting substrate. The connecting member overlaps with the first recess and the second recess in the first direction.

10. The projector device according to claim 3, wherein, The second side substrate and the third side substrate are disposed in a direction perpendicular to the first side substrate and overlap with the light guide in the second direction.

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