KR20240019914A - Optical devicea and electronic device including the same - Google Patents

Abstract

Examples include: frame; An optical device disposed in the frame to generate an image; a display unit connected to the optical device and outputting an image generated by the optical device; and a heat dissipation unit connected to the optical device and disposed inside the frame.

Description

Optical device and electronic device including same {OPTICAL DEVICEA AND ELECTRONIC DEVICE INCLUDING THE SAME}

Embodiments relate to optical devices and electronic devices including the same.

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

Augmented Reality (AR) refers to a technology that synthesizes virtual objects or information in the real environment to make them look like objects that exist in the original environment.

Mixed Reality (MR) or Hybrid reality refers to combining the virtual world and the real world to create a new environment or new information. In particular, it is called mixed reality when it refers to real-time interaction between reality and virtual reality.

At this time, the created virtual environment or situation stimulates the user's five senses and provides spatial and temporal experiences similar to reality, allowing the user to freely move between reality and imagination. In addition, users can not only immerse themselves in this environment, but also interact with things implemented in this environment, such as manipulating or giving commands using real devices.

Recently, research on equipment (gear, devices) used in these technical fields has been actively conducted. However, there is an emerging need to provide additional functions for such equipment.

Embodiments provide optical devices and electronic devices that can more easily suppress fogging when using optical devices used in AR (Augmented Reality), etc., and electronic devices including the same.

Additionally, an optical device with improved reliability through heat dissipation and an electronic device including the same are provided.

Additionally, an optical device with improved energy efficiency and an electronic device including the same are provided.

The problem to be solved in the embodiment is not limited to this, and it will also include means of solving the problem described below and purposes and effects that can be understood from the embodiment.

An electronic device according to an embodiment includes a frame; An optical device disposed in the frame to generate an image; a display unit connected to the optical device and outputting an image generated by the optical device; and a heat dissipation unit connected to the optical device and disposed inside the frame.

The optical device includes a barrel on which a plurality of lenses are disposed; an opening formed on a side of the barrel; It may include a light source device coupled to the opening.

The light source device is

a housing having an opening; a light source emitting light toward the second light guide; and

It may include a substrate connected to the light source.

The heat dissipation unit may be in contact with the substrate.

The heat dissipation portion may extend from the outer surface of the housing to the frame.

The optical device may include an optical signal generator that generates an optical signal including image information, and the heat dissipation portion may extend adjacent to the optical signal generator.

It may include a heat supply unit disposed on the frame.

The heat supply unit and the heat dissipation unit may be spaced apart from each other.

The frame has an upper area; and a lower region disposed below the upper region, wherein one of the heat supply unit and the heat dissipation portion is disposed in the upper region, and the other one of the heat supply unit and the heat dissipation portion is disposed in the lower region. You can.

The heat dissipation unit may be disposed along an outer surface of the frame.

According to an embodiment, an optical device and an electronic device that can more easily suppress the fogging phenomenon when using an optical device used in AR (Augmented Reality), etc., and an electronic device including the same are implemented.

Additionally, an optical device with improved reliability through heat dissipation and an electronic device including the same can be implemented.

Additionally, an optical device with improved energy efficiency and an electronic device including the same can be implemented.

The various and beneficial advantages and effects of the present invention are not limited to the above-described content, and may be more easily understood through description of specific embodiments of the present invention.

1 is a conceptual diagram showing an embodiment of an AI device,
Figure 2 is a block diagram showing the configuration of an extended reality electronic device according to an embodiment of the present invention;
Figure 3 is a perspective view of an augmented reality electronic device according to an embodiment of the present invention;
4 to 6 are conceptual diagrams for explaining various display methods applicable to the display unit according to an embodiment of the present invention;
7 is a side view of an electronic device according to an embodiment;
8 is a plan view of an electronic device according to an embodiment;
9 is a conceptual diagram of an optical device according to an embodiment;
10 is a perspective view of an optical device according to an embodiment;
11 is an exploded perspective view of an optical device according to an embodiment;
Figure 12 is a view taken along line AA' in Figure 10,
Figure 13 is an enlarged view of portion K1 in Figure 12,
Figure 14 is an enlarged view of portion K2 in Figure 12,
15 is a side view of an electronic device according to another embodiment;
16 is a plan view of an electronic device according to another embodiment;
17 is a side view of an electronic device according to another embodiment;
18 is a plan view of an electronic device according to another embodiment.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

However, the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and as long as it is within the scope of the technical idea of the present invention, one or more of the components may be optionally used between the embodiments. It can be used by combining and replacing.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention, unless explicitly specifically defined and described, are generally understood by those skilled in the art to which the present invention pertains. It can be interpreted as meaning, and the meaning of commonly used terms, such as terms defined in a dictionary, can be interpreted by considering the contextual meaning of the related technology.

Additionally, the terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In this specification, the singular may also include the plural unless specifically stated in the phrase, and when described as “at least one (or more than one) of A and B and C”, it is combined with A, B, and C. It can contain one or more of all possible combinations.

Additionally, when describing the components of an embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used.

These terms are only used to distinguish the component from other components, and are not limited to the essence, sequence, or order of the component.

And, when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to that other component, but also It can also include cases where other components are 'connected', 'combined', or 'connected' due to another component between them.

Additionally, when described as being formed or disposed “above” or “below” each component, “above” or “below” means not only when two components are in direct contact with each other, but also when two components are in direct contact with each other. This also includes cases where another component described above is formed or placed between two components. In addition, when expressed as “top (above) or bottom (bottom)”, it can include not only the upward direction but also the downward direction based on one component.

1 is a conceptual diagram showing an embodiment of an AI device.

Referring to Figure 1, the AI system includes at least one of an AI server 16, a robot 11, an autonomous vehicle 12, an XR device 13, a smartphone 14, or a home appliance 15 connected to a cloud network. It is connected to (10). Here, a robot 11, an autonomous vehicle 12, an XR device 13, a smartphone 14, or a home appliance 15 to which AI technology is applied may be referred to as AI devices 11 to 15.

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

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

The AI server 16 may include a server that performs AI processing and a server that performs calculations on big data.

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

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 directly store or transmit the learning model to the AI devices 11 to 15.

At this time, the AI server 16 receives input data from the AI devices 11 to 15, infers a result value for the received input data using a learning model, and provides a response or control command based on the inferred result value. can be generated and transmitted to AI devices (11 to 15).

Alternatively, the AI devices 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.

<AI+Robot>

The robot 11 uses AI technology and can be implemented as a guidance robot, a transport robot, a cleaning robot, a wearable robot, an entertainment robot, a pet robot, an unmanned flying robot, etc.

The robot 11 may include a robot control module for controlling operations, and the robot control module may mean a software module or a chip implementing it as hardware.

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

Here, the robot 11 may use sensor information obtained from at least one sensor among lidar, radar, and camera to determine the movement path and driving plan.

The robot 11 can perform the above operations using a learning model composed of at least one artificial neural network. For example, the robot 11 can recognize the surrounding environment and objects using a learning model, and can determine an operation using the recognized surrounding environment information or object information. Here, the learning model may be learned directly from the robot 11 or from an external device such as the AI server 16.

At this time, the robot 11 may perform an action by generating a result using a direct learning model, but it also transmits sensor information to an external device such as the AI server 16 and receives the result generated accordingly to perform the action. It can also be done.

The robot 11 determines the movement path and driving plan using at least one of map data, object information detected from sensor information, or object information acquired from an external device, and controls the driving unit to follow the determined movement path and driving plan. The robot 11 can be driven accordingly.

The map data may include object identification information about various objects arranged 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 and movable objects such as flower pots and desks. Additionally, object identification information may include name, type, distance, location, etc.

Additionally, the robot 11 can perform actions or travel by controlling the driving unit based on the user's control/interaction. At this time, the robot 11 may acquire interaction intention information according to the user's motion or voice utterance, determine a response based on the acquired intention information, and perform the operation.

<AI+Autonomous Driving>

The self-driving vehicle 12 can be implemented as a mobile robot, vehicle, unmanned aerial vehicle, etc. by applying AI technology.

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 implementing it as hardware. The self-driving control module may be included internally as a component of the self-driving vehicle 12, but may also be configured as separate hardware and connected to the outside of the self-driving vehicle 12.

The self-driving vehicle 12 uses sensor information obtained from various types of sensors to obtain status information of the self-driving vehicle 12, detect (recognize) the surrounding environment and objects, generate map data, or You can determine the movement route and driving plan, or determine the action.

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

In particular, the autonomous vehicle 12 can recognize the environment or objects in areas where the view is obscured or over a certain distance by receiving sensor information from external devices, or receive recognized information directly from external devices. .

The autonomous vehicle 12 can perform the above operations using a learning model composed of at least one artificial neural network. For example, the self-driving vehicle 12 can recognize the surrounding environment and objects using a learning model, and can determine a driving route using the recognized surrounding environment information or object information. Here, the learning model may be learned directly from the autonomous vehicle 12 or from an external device such as the AI server 16.

At this time, the autonomous vehicle 12 may perform operations by generating results using a direct learning model, but it may also transmit sensor information to an external device such as the AI server 16 and receive the results generated accordingly. You can also perform actions.

The autonomous vehicle 12 determines the movement path and driving plan using at least one of map data, object information detected from sensor information, or object information acquired from an external device, and controls the driving unit to determine the determined movement path and driving. The autonomous vehicle 12 can be driven according to a plan.

The map data may include object identification information about various objects placed in the space (eg, road) where the autonomous vehicle 12 drives. 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.

Additionally, the autonomous vehicle 12 can perform operations or drive by controlling the driving unit based on the user's control/interaction. At this time, the autonomous vehicle 12 may acquire interaction intention information according to the user's motion or voice utterance, determine a response based on the acquired intention information, and perform the operation.

<AI+XR>

The XR device 13 is equipped with AI technology and can be used for HMD (Head-Mount Display), HUD (Head-Up Display) installed in vehicles, televisions, mobile phones, smart phones, computers, wearable devices, home appliances, and digital signage. , it can be implemented as a vehicle, a fixed robot, or a mobile robot.

The XR device 13 analyzes 3D point cloud data or image data acquired through various sensors or from external devices to generate location data and attribute data for 3D points, thereby providing information about surrounding space or real objects. The XR object to be acquired and output can be rendered and output. For example, the XR device 13 may output an XR object containing additional information about the recognized object in correspondence to the recognized object.

The XR device 13 may perform the above 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 a learning model and provide information corresponding to the recognized real-world object. Here, the learning model may be learned directly from the XR device 13 or from an external device such as the AI server 16.

At this time, the XR device 13 may perform operations by generating results using a direct learning model, but operates by transmitting sensor information to an external device such as the AI server 16 and receiving the results generated accordingly. You can also perform .

<AI+Robot+Autonomous Driving>

The robot 11 applies AI technology and autonomous driving technology and can be implemented as a guidance robot, a transport robot, a cleaning robot, a wearable robot, an entertainment robot, a pet robot, an unmanned flying robot, etc.

The robot 11 to which AI technology and autonomous driving technology is applied may refer to the robot itself with autonomous driving functions or the robot 11 that interacts with the autonomous vehicle 12.

The robot 11 with autonomous driving function can refer to devices that move on their own according to a given route without user control, or determine the route on their own and move.

The robot 11 and the autonomous vehicle 12 with autonomous driving functions may use a common sensing method to determine one or more of a movement path or a driving plan. For example, the robot 11 and the autonomous vehicle 12 with autonomous driving functions can determine one or more of the movement path or driving plan using information sensed through lidar, radar, and cameras.

The robot 11 interacting with the autonomous vehicle 12 exists separately from the autonomous vehicle 12 and is linked to the autonomous driving function inside or outside the autonomous vehicle 12, or is connected to the autonomous driving function inside or outside the autonomous vehicle 12. ) can perform actions linked to the user on board.

At this time, the robot 11 interacting with the autonomous vehicle 12 acquires sensor information on behalf of the autonomous vehicle 12 and provides it to the autonomous vehicle 12, or acquires sensor information and provides surrounding environment information. Alternatively, the autonomous driving function of the autonomous vehicle 12 can be controlled or assisted by generating object information and providing it to the autonomous vehicle 12.

Alternatively, the robot 11 interacting with the autonomous vehicle 12 may monitor the user riding the autonomous vehicle 12 or control the functions of the autonomous vehicle 12 through interaction with the user. . For example, if it is determined that the driver is drowsy, the robot 11 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 provided inside the autonomous vehicle 12.

Alternatively, the robot 11 interacting with the autonomous vehicle 12 may provide information to the autonomous vehicle 12 or assist a function 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, and may interact with the autonomous vehicle 12, such as an automatic electric charger for an electric vehicle. You can also automatically connect an electric charger to the charging port.

<AI+Robot+XR>

The robot 11 applies AI technology and XR technology and can be implemented as a guidance robot, a transport robot, a cleaning robot, a wearable robot, an entertainment robot, a pet robot, an unmanned flying robot, a drone, etc.

The robot 11 to which XR technology is applied may refer to a robot that is subject to control/interaction within an XR image. In this case, the robot 11 is distinct from the XR device 13 and can be interoperated with each other.

When the robot 11, which is the object of control/interaction within the XR image, acquires sensor information from sensors including a camera, the robot 11 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. And, this robot 11 can operate based on a control signal input through the XR device 13 or user interaction.

For example, the user can check the XR image corresponding to the viewpoint of the remotely linked robot 11 through an external device such as the XR device 13, and adjust the autonomous driving path of the robot 11 through interaction. , you can control movement or driving, or check information on surrounding objects.

<AI+Autonomous Driving+XR>

The self-driving vehicle 12 can be implemented as a mobile robot, vehicle, unmanned aerial vehicle, etc. by applying AI technology and XR technology.

The autonomous vehicle 12 to which XR technology is applied may refer to an autonomous vehicle equipped with means for providing XR images or an autonomous vehicle that is subject to control/interaction within XR images. In particular, the autonomous vehicle 12, which is the subject of control/interaction within the XR image, is distinct from the XR device 13 and can be interoperable with each other.

The autonomous vehicle 12 equipped with a means for providing an XR image can acquire sensor information from sensors including a camera and output an XR image generated based on the acquired sensor information. For example, the self-driving vehicle 12 may be equipped with a HUD and output XR images, thereby providing passengers with XR objects corresponding to real objects or objects on the screen.

At this time, when the XR object is output to the HUD, at least a portion of the XR object may be output to overlap the 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 portion of the XR object may be output to overlap the object in the screen. For example, the autonomous vehicle 12 may output XR objects corresponding to objects such as lanes, other vehicles, traffic lights, traffic signs, two-wheeled vehicles, pedestrians, buildings, etc.

When the autonomous vehicle 12, which is the subject of control/interaction within the XR image, acquires sensor information from sensors including cameras, the autonomous vehicle 12 or the XR device 13 detects sensor information based on the sensor information. An XR image is generated, and the XR device 13 can output the generated XR image. Additionally, this autonomous vehicle 12 may operate based on control signals input through an external device such as the XR device 13 or user interaction.

[Extended reality technology]

Extended reality (XR: eXtended Reality) is a general term for virtual reality (VR), augmented reality (AR), and mixed reality (MR: Mixed reality). VR technology provides objects and backgrounds in the real world only as CG images, AR technology provides virtual CG images on top of images of real objects, and MR technology provides computer technology that mixes and combines virtual objects in the real world. It is a graphic technology.

MR technology is similar to AR technology in that it shows real objects and virtual objects together. However, in AR technology, virtual objects are used to complement real objects, whereas in MR technology, virtual objects and real objects are used equally.

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 with XR technology applied are called XR Devices. It can be called.

Hereinafter, an electronic device that provides extended reality according to an embodiment of the present invention will be described. In particular, optical devices applied to augmented reality and electronic devices including them are explained in detail.

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

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

More specifically, among the above components, the wireless communication unit 21 is a wireless communication system between the electronic device 20 and the wireless communication system, between the electronic device 20 and another electronic device, or between the electronic device 20 and an external server. It may contain one or more modules that enable communication. Additionally, the wireless communication unit 21 may include one or more modules that connect the electronic device 20 to one or more networks.

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.

The input unit 22 includes 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 (for example, a touch key) for receiving information from the user. , pushkey (mechanical key, etc.) may be included. Voice data or image data collected from the input unit 22 may be analyzed and processed as a user's control command.

The sensing unit 23 may include one or more sensors for sensing at least one of information within the electronic device 20, information on the surrounding environment surrounding the electronic device 20, and user information.

For example, the sensing unit 23 includes a proximity sensor, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and a gravity sensor (G- sensor, gyroscope sensor, motion sensor, RGB sensor, infrared sensor, fingerprint scan sensor, ultrasonic sensor, optical sensor ( optical sensor (e.g., imaging device), microphone, battery gauge, environmental sensor (e.g., barometer, hygrometer, thermometer, radiation detection sensor, heat detection sensor, gas detection sensor, etc.), It may include at least one of chemical sensors (eg, electronic nose, healthcare sensor, biometric sensor, etc.). Meanwhile, the electronic device 20 disclosed in this specification can utilize information sensed by at least two of these sensors by combining them.

The output unit 24 is intended to generate output related to vision, hearing, or tactile sensation, and may include at least one of a display unit, an audio output unit, a haptic module, and an optical output unit. A touch screen can be implemented by forming a layered structure with the touch sensor or being integrated with the display unit. This touch screen functions as a user input means that provides an input interface between the augmented reality electronic device 20 and the user, and can simultaneously provide an output interface between the augmented reality electronic device 20 and the user.

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 an external device, and can perform mutual interaction by exchanging various input signals, sensing signals, and data.

For example, the interface unit 25 includes a device equipped with a wired/wireless headset port, an external charger port, a wired/wireless data port, a memory card port, and an identification module. It may include at least one of a connection port, an audio input/output (I/O) port, a video input/output (I/O) port, and an earphone port.

Additionally, the memory 26 stores data that supports various functions of the electronic device 20. Memory 26 may include read-only memory (ROM), random access memory (RAM), flash memory, memory cards, storage media, and/or other storage devices. The memory 26 may store a plurality of application programs (application programs or applications) running on the electronic device 20, data for operating the electronic device 20, and commands. At least some of these applications may be downloaded from an external server via wireless communication. Additionally, at least some of these applications may be present on the electronic device 20 from the time of shipment for basic functions of the electronic device 20 (e.g., call incoming and outgoing functions, message receiving and sending functions).

The control unit 27 typically controls the overall operation of the electronic device 20 in addition to operations related to application programs. The control unit 27 can process signals, data, information, etc. that are input or output through the components discussed above.

Additionally, the control unit 27 can control at least some of the components by running the application program stored in the memory 26 to provide appropriate information to the user or process functions. Furthermore, the control unit 27 may operate at least two of the components included in the electronic device 20 in combination with each other in order to run an application program. Furthermore, the control unit 27 can perform processing for a display method described later. This control unit 27 may be expressed as a processor, control unit, etc. Additionally, the control unit 27 may include an application-specific integrated circuit (ASIC), another chipset, logic circuit, and/or a data processing device.

Additionally, the control unit 27 may sense the movement of the electronic device 20 or the user using a gyroscope sensor, gravity sensor, motion sensor, etc. included in the sensing unit 23. Alternatively, the control unit 27 may detect an object approaching the electronic device 20 or the user using a proximity sensor, illuminance sensor, magnetic sensor, infrared sensor, ultrasonic sensor, light sensor, etc. included in the sensing unit 23. there is. In addition, the control unit 27 can also detect the user's movement through sensors provided in the controller that operates in conjunction with the electronic device 20.

Additionally, the control unit 27 may perform an operation (or function) of the electronic device 20 using an application program stored in the memory 26.

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

At least some of the above components may operate in cooperation with each other to implement operation, control, or a control method of an electronic device according to various embodiments described below. Additionally, the operation, control, or control method of the electronic device may be implemented on the electronic device by running at least one application program stored in the memory 26.

Hereinafter, an electronic device described as an example of the present invention will be described based on an embodiment applied to a Head Mounted Display (HMD). However, embodiments of the electronic device according to the present invention include mobile phones, smart phones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation, and slate PCs ( Slate PC, tablet PC, ultrabook, and wearable device may be included. In addition to HMD, wearable devices may include smart watches, contact lenses, VR/AR/MR Glass, etc.

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

As shown in FIG. 3, an electronic device according to an embodiment of the present invention may include a frame 100, an optical device 200, and a display unit 300.

The electronic device may be provided as a glass type (smart glass). A glass-type electronic device is configured to be worn on the head of the human body, and may be provided with a frame (case, housing, etc.) 100 for it. The frame 100 may be made of a flexible material to make it easy to wear.

The frame 100 is supported on the head and provides space for various parts to be mounted. As shown, the frame 100 may be equipped with electronic components such as an optical device 200, a user input unit 130, or an audio output unit 140. Additionally, a lens covering at least one of the left eye and the right eye may be removably mounted on the frame 100.

The user input unit 130 may correspond to the input unit described above. For example, the user input unit 130 may include a touch key, a push key (mechanical key, etc.).

As shown in the drawing, the frame 100 may have the form of glasses worn on the face of the user's body, but is not necessarily limited thereto and may have the form of goggles worn in close contact with the user's face. .

Such a frame 100 includes a front frame 110 having at least one opening, and a pair of side frames 120 that extend in the y direction (in FIG. 3) intersecting the front frame 110 and are parallel to each other. It can be included.

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

The optical device 200 is provided to control various electronic components included in an electronic device.

The optical device 200 may generate an image shown to the user or an image containing a series of images. The optical device 200 may 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.

The optical device 200 may be fixed to one of the two side frames 120 . For example, the optical device 200 may be fixed to the inside or outside of one of the side frames 120, or may be built into one of the side frames 120 and formed integrally. Alternatively, the optical device 200 may be fixed to the front frame 110 or may be provided separately from the electronic device.

The display unit 300 may be implemented in the form of a head mounted display (HMD). HMD type refers to a display method that is mounted on the head and shows images directly in front of the user's eyes. When a user wears an electronic device, the display unit 300 may be arranged to correspond to at least one of the left eye and the right eye so that an image can be provided directly in front of the user's eyes. In this drawing, the display unit 300 is located in a portion corresponding to the right eye so that an image can be output toward the user's right eye. However, as described above, it is not limited to this and may be placed on both the left and right eyes.

The display unit 300 allows the user to visually perceive the external environment and at the same time allows the user to see the image generated by the optical device 200. For example, the display unit 300 may project an image onto the display area using a prism.

Additionally, the display unit 300 may be formed to be translucent so that the projected image and the general front view (range viewed through the user's eyes) are visible at the same time. For example, the display unit 300 may be translucent and may be formed of an optical member including glass.

Additionally, the display unit 300 may be inserted into and fixed to an opening included in the front frame 110, or may be located on the back of the opening (i.e., between the opening and the user) and fixed to the front frame 110. In the drawing, the display unit 300 is located on the back of the opening and is fixed to the front frame 110 as an example. However, unlike this, the display unit 300 can be placed and fixed at various positions on the frame 100. You can.

As shown in FIG. 3, when image light for an image is incident on one side of the display unit 300 from the optical device 200, the electronic device emits the image light to the other side through the display unit 300, The image generated by the device 200 can be displayed to the user.

Accordingly, the user can view the image generated by the optical device 200 while simultaneously viewing the external environment through the opening of the frame 100. That is, the image output through the display unit 300 may appear to overlap with the general field of view. Electronic devices can use these display characteristics to provide augmented reality (AR), which displays a single image by overlapping a virtual image on a real image or background.

Furthermore, in addition to this operation, the external environment and images generated by the optical device 200 may be provided to the user with a time difference for a short period of time that cannot be perceived by a person. For example, within one frame, an external environment may be provided to a person in one section, and an image from the optical device 200 may be provided to a person in another section.

Alternatively, both overlap and time difference may be provided.

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

Specifically, FIG. 4 is a diagram for explaining an embodiment of a prism-type optical member, FIG. 5 is a diagram for explaining an embodiment of a waveguide (or waveguide)-type optical member, and FIG. 6 is a surface This is a drawing to explain an embodiment of a reflective optical member.

As shown 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.

In an embodiment, the prismatic optical member is a flat type glass optical member in which the surface on which image light is incident and the surface 300a on which image light is emitted are flat, as shown in (a) of FIG. 4, or , As shown in (b) of FIG. 4, a freeform glass optical member in which the surface 300b from which image light is emitted is formed as a curved surface without a constant radius of curvature may be used.

The flat type glass optical member may receive image light generated by the optical device 200 from its flat side, be reflected by the total reflection mirror 300a provided therein, and be emitted toward the user. Here, the total reflection mirror 300a provided inside the flat type glass optical member may be formed inside the flat type glass optical member using a laser.

The freeform glass optical member is configured to become thinner as the distance from the incident surface increases, so that the image light generated by the optical device 200 is incident on the side having a curved surface, is totally reflected internally, and can be emitted toward the user. there is.

As shown in FIG. 5, the display unit 300-2 according to another embodiment of the present invention includes a waveguide (or waveguide) type optical member or a light guide optical element (LOE). It can be used.

An example of such a waveguide (or waveguide) or light guide type optical member is a partially reflective mirror (segmented beam splitter) type glass optical member as shown in (a) of FIG. 5 , a glass optical member of the sawtooth prism type as shown in (b) of FIG. 5, a glass optical member having a diffractive optical element (DOE) as shown in (c) of FIG. 5, A glass optical element having a hologram optical element (HOE) as shown in (d), a glass optical element having a passive grating as shown in (e) of FIG. 5, FIG. 5 There may be a glass optical member with an active grating as shown in (f).

As shown in (a) of FIG. 5, the glass optical member of the segmented beam splitter type has a total reflection mirror 301a and a light image on the side where the light image is incident inside the glass optical member. A partial reflection mirror (segmented beam splitter, 301b) may be provided on the emitting side.

Accordingly, the light image generated by the optical device 200 is totally reflected by the total reflection mirror 301a inside the glass optical member, and the totally reflected light image guides light along the longitudinal direction of the glass and is reflected by the partial reflection mirror 301b. It can be partially separated and emitted and recognized by the user's perspective.

The sawtooth prism glass optical member as shown in (b) of FIG. 5 is provided on the side where the image light of the optical device 200 is incident on the side of the glass in a diagonal direction and is totally reflected inside the glass, and the light image is emitted. The irregularities 302 in the form of sawtooth are projected to the outside of the glass and can be recognized by the user's vision.

The glass optical member having a diffractive optical element (DOE) as shown in (c) of FIG. 5 has a first diffraction portion 303a on the surface of the side where the light image is incident and a side where the light image is emitted. A second diffraction portion 303b may be provided on the surface of . The first and second diffraction parts 303a and 303b may be provided by patterning a specific pattern on the surface of the glass or attaching a separate diffraction film.

Accordingly, the light image generated by the optical device 200 is diffracted as it enters through the first diffraction unit 303a, is totally reflected, guides light along the longitudinal direction of the glass, and is emitted through the second diffraction unit 303b. , can be recognized by the user's perspective.

The glass optical member having a hologram optical element (HOE) as shown 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. You can. Accordingly, the light image is incident from the optical device 200 in the diagonal direction through the side of the glass, is totally reflected, guides the light along the longitudinal direction of the glass, and is emitted by the out coupler 304, so that it can be recognized by the user's vision. there is. The structure of such holographic optical members can be slightly changed and further divided into a structure with a passive grid and a structure with an active grid.

The glass optical member having a passive grating as shown in (e) of FIG. 5 has an in-coupler (305a) on the surface opposite to the glass surface on which the light image is incident, and the light image is emitted. An out-coupler (305b) may be provided on the surface opposite to the glass surface. Here, the in-coupler 305a and the out-coupler 305b may be provided in the form of a film having a passive grid.

Accordingly, the light image incident on the glass surface on the incident side of the glass is totally reflected by the in-coupler 305a provided on the opposite surface, guides light along the longitudinal direction of the glass, and is guided along the length of the glass by the out-coupler 305b. It projects through the opposite surface and can be recognized by the user's vision.

The glass optical member having an active grating as shown in (f) of FIG. 5 is an in-coupler (306a) formed with an active grating inside the glass on the side where the light image is incident, and the light image An out-coupler (306b) formed as an active grid may be provided inside the glass on the side from which light is emitted.

Accordingly, the light image incident on the glass is totally reflected by the in-coupler 306a, guides light along the length direction of the glass, and is emitted out of the glass by the out-coupler 306b, so that it can be recognized by the user's vision. there is.

A pin mirror type optical member may be used as the display unit according to the modified example.

In addition, the surface reflection type optical member of the freeform combiner type as shown in (a) of FIG. 6 has a plurality of flat surfaces with different incident angles of the optical image formed of one glass to perform the role of a combiner. , freeform combiner glass formed to have an overall curved surface can be used. Such freeform combiner glass 300 may emit an optical image to the user at different angles of incidence for each area.

The Flat HOE surface reflection type optical member as shown in (b) of FIG. 6 may be provided by coating or patterning a holographic optical member (HOE, 311) on the surface of flat glass. The light image incident from the device 200 may pass through the holographic optical member 311, be reflected on the surface of the glass, and then pass through the holographic optical member 311 again and be emitted toward the user.

The freeform HOE surface reflection type optical member as shown in (c) of FIG. 6 may be provided by coating or patterning a holographic optical member (HOE, 313) on the surface of freeform glass, and the operating principle is It may be the same as described in (b) of FIG. 6.

FIG. 7 is a side view of an electronic device according to an embodiment, FIG. 8 is a top view of an electronic device according to an embodiment, FIG. 9 is a conceptual diagram of an optical device according to an embodiment, and FIG. 10 is a perspective view of an optical device according to an embodiment. , FIG. 11 is an exploded perspective view of an optical device according to an embodiment, FIG. 12 is a view taken along line AA' in FIG. 10, FIG. 13 is an enlarged view of portion K1 in FIG. 12, and FIG. 14 is a view taken along line AA' in FIG. 10. This is an enlarged view of part K2.

Referring to FIGS. 7 and 9 , the electronic device according to the embodiment may include a frame 100, an optical device 200, a display unit 300, and a heat dissipation unit (HD), as described above.

Frame 100 may be a glasses tail as described above.

Additionally, the optical device 200 may be disposed on the frame 100 to generate an image. Accordingly, the optical device 200 may include a light source.

Additionally, the display unit 300 is connected to the optical device 200 and can output an image generated by the optical device 200. For this purpose, the optical device 200 may include an optical signal generator 230.

The heat dissipation unit HD may be connected to the optical device 200. And the heat dissipation unit HD may be disposed inside the frame 100. With this configuration, it is possible to easily prevent phenomena such as fogging caused by the environment by the heat dissipation unit HD.

The heat dissipation portion (HD) may be in contact with the light source of the optical device. Accordingly, heat generated by the light source of the optical device can be easily dissipated. Accordingly, even if the user wears the frame, the skin may not be damaged from the heat caused by the optical device. Furthermore, the reliability of optical devices can be improved.

This heat dissipation unit HD may be in contact with the substrate of the light source device of the optical device 200. More specifically, it may be in contact with a substrate that is in contact with a light source. For this purpose, in the light source device the substrate can be exposed from the housing of the light source device. That is, the heat dissipation portion HD easily contacts the substrate on which the light source is mounted through the exposed surface, and the heat dissipation portion can easily dissipate heat.

Referring further to FIGS. 9 to 12 , the optical device 200 according to the embodiment includes a barrel 210, a lens (L), and a first light guide (LG1). Furthermore, the optical device 200 may include a light source device 220 located at or coupled to an opening OP formed on a side of the barrel 210 and an optical signal generator 230 adjacent to the barrel 210. Furthermore, the optical device 200 may further include a cover (CV) surrounding the barrel 210, the light source device 220, and the optical signal generator 230, and a substrate (including a connector, not shown).

There may be a plurality of lenses L. For example, the lens L may include a plurality of lenses arranged sequentially based on the top of the barrel 210. For example, the lens L may include a first lens L1 disposed first at the top, a second lens L2 disposed behind the first lens, and an N-th lens Ln disposed last at the top. Here, N is a natural number and can be 2 or more. In addition, the N-th lens Ln may be located closest to the optical signal generator 230 located at the rear end of the barrel 210 or at the rear end of the plurality of lenses L among the plurality of lenses L.

Additionally, in an embodiment according to the present invention, the first direction (X-axis direction) may correspond to the optical axis. Additionally, the first direction (X-axis direction) may correspond to the direction in which light emitted from the light source device 220 is reflected by the optical signal generator 230 and is emitted to the display unit described above. And the second direction (Y-axis direction) is a direction perpendicular to the first direction (Y-axis direction). Furthermore, the second direction (Y-axis direction) may correspond to the direction from the first light guide LG1 toward the opening OP. Additionally, in the following specification or this embodiment, the second direction (Y-axis direction) may correspond to the direction from the first light guide LG1 to the second light guide LG2. The first light guide LG1 may be referred to as a first light guide part or a first guide member. Additionally, the second light guide LG2 may be referred to as a second light guide part or a second guide member.

And the barrel 210 may further include a hole corresponding to the opening OP. In an embodiment, the barrel 210 may include a barrel hole or an additional hole 210h. The additional hole 210h may be located facing the opening OP. Alternatively, the additional hole 210h may overlap the opening OP in the second direction (Y-axis direction). Alternatively, the distance of the additional hole 210h from the N-th lens Ln in the first direction may be equal to the distance between the opening OP and the N-th lens Ln. Alternatively, the additional hole 210h may be located in an area corresponding to the position of the opening OP on the inner surface of the barrel 210. With this configuration, the bonding member can be easily applied to the light source device 220 coupled to, inserted into, fixed to, or connected to the opening OP through the additional hole 210h. Accordingly, the coupling force between the barrel 210 and the light source device 220 can be improved. Accordingly, the optical device 200 according to the embodiment may have improved durability, durability, or reliability. Alternatively, optical tests on the light source device 220 located in the opening OP can also be easily performed through the additional hole 210h. Alternatively, fluid (eg, air) can be easily discharged or discharged to the barrel 210 and the light source device 200 through the additional hole 210h. The presence or absence of these additional holes 210h may be applied in various ways depending on the embodiment. For example, the additional hole 210h may be disposed on the side of the barrel 210 as described above. Alternatively, the additional hole 210h may not exist on the side of the barrel 210 in consideration of durability, etc.

And a plurality of lenses (L) may be located within the barrel 210. Additionally, a first light guide LG1 may be located within the barrel 210.

And the barrel 210 according to the embodiment may include an opening OP formed on the side. The shape of the opening OP may include various shapes, such as circular or polygonal. And this opening OP may correspond to the position of the first light guide LG1.

In an embodiment, the opening OP may overlap the first light guide LG1 in a direction perpendicular to the optical axis. With this configuration, light emitted from the light source device 220 located on the side of the barrel 210 can easily enter the first light guide LG1.

And the first light guide LG1 may be disposed between two lenses among the plurality of lenses. For example, the first light guide LG1 may be disposed between the first lens L1 and the N-th lens Ln. Additionally, the first light guide LG1 may be located between the first lens L1 and the optical signal generator 230. Additionally, the first light guide LG1 may be located between the first lens L1 and the second lens L2 or between the second lens L2 and the N-th lens Ln. Various positions of the first light guide LG1 will be described through various embodiments as will be described later.

In this embodiment, the first light guide LG1 may be located between the second lens L2 and the N-th lens Ln. Accordingly, the N-th lens (Ln) may be located between the first light guide (LG1) and the optical signal generator 230. With this configuration, an appropriate optical path can be secured when the light reflected from the first light guide LG1 is provided to the optical signal generator 230. Additionally, refraction of the reflected light may occur. As a result, the first light guide LG1 can be miniaturized.

The first light guide LG1 may include a first prism. The first prism may be a polarizing prism. Additionally, the first prism may be a polarization separation prism.

The first prism may reflect the first polarized light and transmit the second polarized light. For example, a portion of the light (first polarized light) provided from the light source device 220 or incident on the first light guide LG1 may be reflected from the first light guide LG1 and provided to the optical signal generator 230. . Additionally, another part of the light (second polarized light) incident on the first light guide LG1 may pass through the first light guide LG1 and be absorbed in the barrel 210 .

Additionally, light emitted from the light source device 220 may be incident on the first light guide LG1 through the opening OP. To this end, as described above, the opening OP may be disposed in the area where the first light guide LG1 is located. For example, the incident surface of the first light guide LG1 may be positioned to face the opening OP. Alternatively, the position of the first light guide LG1 in the barrel 210 may be the same as the first light guide LG1.

The light source device 220 may include a light source 223 and generate (generate, provide) or emit light. The light source device 220 according to the embodiment may be located or coupled to the opening OP. That is, the light source device 220 may be connected or combined with the barrel 210.

The light source device 220 includes a housing 222 including an opening 222h, a second light guide LG2 disposed within the housing 2220, and a light source 223 that provides light to the second light guide LG2. It can be included.

Furthermore, the light source device 220 includes a light source assembly 221 disposed outside the light source device 220 and surrounding the housing 222, a light source lens 224 adjacent to the light source 223, and an intermediate member located within the housing 222. It may include a lens (MO).

The light source assembly 221 may be disposed on the outermost side of the light source device 220 . When mounting the light source 223 within the housing 222 is difficult or when mounting an additional lens (light source lens) is required, the light source assembly 221 may be located outside the housing 222. The light source assembly 221 may be integrated with the housing 222 or may be separate from the housing 222 .

Housing 222 may include an opening 222h. The housing 222 may be located adjacent to the opening OP of the barrel 210. For example, the opening 222h of the housing 222 may be located corresponding to the opening OP of the barrel 210. Accordingly, the opening 222h of the housing 222 may overlap the opening OP of the barrel 210 in the second direction (Y-axis direction).

Light source 223 may be located within housing 222 or light source assembly 221. The light source 223 may emit light. For example, light emitted from the light source 223 may be incident on the second light guide LG2 within the housing 222. A second light guide LG2 may be located within the housing 222. Accordingly, the second light guide LG2 may transmit the light emitted from the light source 223 to the opening 222h or the first light guide LG1.

And there may be more than one light source 223. That is, in the light source device 220, there may be a single light source 223 or a plurality of light sources 223. For example, the light source 223 may be plural and include a first light source 223a, a second light source 223b, and a third light source 223c. The first light source 223a to the third light source 223c may emit light in the same direction or in different directions. For example, the first light source 223a and the third light source 223c may be positioned to face each other. The first light source 223a and the third light source 223c may be positioned to overlap in the first direction (X-axis direction). And a second light guide LG2 may be located between the first light source 223a and the third light source 223c. Accordingly, the second light guide LG2 may overlap the first light source 223a and the third light source 223c. And the second light source 223b may be located between the first light source 223a and the third light source 223c. The first light source 223a to the third light source 223c may emit light toward the second light guide LG2. And the second light source 223b may overlap the second light guide LG2 in the second direction. With this configuration, the optical device 200 can have a compact light source device 220.

Additionally, the first light source 223a, the second light source 223b, and the third light source 223c may each emit light of the same or different wavelengths or colors. For example, the first light source 223a, the second light source 223b, and the third light source 223c may each emit red, green, and blue light.

The second light guide LG2 may include a second prism. The second prism is a reflective member and may include, for example, an X prism (x-prism). In an embodiment, the second light guide LG2 or the second prism may have a structure in which at least two or more prisms are combined.

And the second prism may include at least two or more coated surfaces (reflecting members or reflective sheets). One of these at least two coating surfaces may reflect light of the first wavelength and light of the second wavelength, and may transmit light of the third wavelength. That is, the coated surface can reflect light in a predetermined wavelength band. Accordingly, for each light emitted from the plurality of light sources 223, lights in a desired wavelength band may be reflected from the second light guide LG2. For example, light passing through the second light guide (LG2) may be provided to the first light guide (LG1) or the intermediate lens (MO).

The light source lens 224 may be located adjacent to the light source 223. For example, there may be a plurality of light source lenses 224. The light source lens 224 may be located on the path of light emitted from each light source 223.

In an embodiment, the light source lens 224 may be located between the second light guide LG2 and the light source 223. Additionally, there may be a plurality of light source lenses 224. A plurality of light source lenses 224 may be positioned between the second light guide LG2 and the light source 223. Alternatively, there may be a plurality of light source lenses 224 corresponding to each of the plurality of light sources 223 .

For example, the light source lens 224 may include a first light source lens 224a, a second light source lens 224b, and a third light source lens 224c. The first light source lens 224a may be located between the first light source 223a and the second light guide LG2. The second light source lens 224b may be located between the second light source 223b and the second light guide LG2. The third light source lens 224c may be located between the third light source 223c and the second light guide LG2.

In addition, the first light source lens 224a, the second light source lens 224b, and the third light source lens 224c are each on the first light source 223a, the second light source 223b, and the third light source 223c. There may be multiple locations. For example, one of the plurality of first light source lenses 224a may be located on the first light source 223a and combined with the light source assembly 221. Another one of the plurality of first light source lenses 224a is located between one of the first light source lenses 224a and the second light guide LG2, and can be combined with the housing 222.

And the first light source lens 224a, the second light source lens 224b, and the third light source lens 224c may include a collimator lens or a collimator.

Additionally, a substrate 225 connected to the light source 223 may be disposed in the light source assembly 221. There may be at least one substrate 225 corresponding to the light source 223 . For example, the plurality of substrates 225 may include a first substrate 225a, a second substrate 225b, and a third substrate 225c. As described above, the plurality of substrates 225 may be one substrate or may be plural in number corresponding to the number of light sources.

Additionally, the substrate 225 may be electrically connected to a control unit or processor within the frame (or display unit) described above. Accordingly, the board 225 may include a connector for communication with an external device or a connected device. Furthermore, the substrate 225 is disposed outside the light source 223 to discharge heat generated from the light source to the outside. Accordingly, the reliability of the light source device 220 can be improved.

The intermediate lens (MO) may be located between the aperture (222h) and the second light guide (LG2). Additionally, the intermediate lens (MO) may be located between the first light guide (LG1) and the second light guide (LG2).

The intermediate lens (MO) may include a plurality of lenses. For example, it may include a first intermediate lens (MO1) and a second intermediate lens (MO2). However, as will be described later, the light reflected from the second light guide LG2 may be directly provided to the first light guide LG1 without the intermediate lens MO.

The first intermediate lens MO1 may include a first surface MO1s1 adjacent to the first light guide LG1 and a second surface MO1s2 corresponding to the first surface MO1s1. Light emitted from the light source 223 may pass through the second light guide LG2 and sequentially pass through the second surface MO1s2 and the second surface MO1s1.

The second surface MO1s2 may be convex toward the second light guide LG2. Alternatively, the second surface MO1s2 may be concave toward the first light guide LG1. Furthermore, the first surface MO1s1 may be convex or concave toward the second light guide Lg2. For example, the first intermediate lens MO1 may have a meniscus shape. In this way, the second surface MO1s2 is convex toward the second light guide LG2, so that light can be concentrated while passing through the intermediate lens MO. Accordingly, the uniformity or uniformity of light provided to the optical signal generator 230 may be improved. In other words, the light incident on the optical signal generator 230 may be surface light. And the uniformity of surface light can be improved. Accordingly, the accuracy or resolution of the image signal or image emitted to the display unit through the optical device 200 according to the embodiment may be improved.

The second intermediate lens (MO2) may include a micro lens array (MLA). Accordingly, surface illumination may be partially performed on the light passing through the second light guide LG2.

Furthermore, the second intermediate lens MO2 may have a different size from the second light guide LG2. Additionally, the first intermediate lens MO1 may have a different size from the second light guide LG2. For example, the intermediate lens (MO2) may be larger in size compared to the second light guide (LG2).

Furthermore, the positions of the plurality of lenses L, the intermediate lens MO, and the light source lens 224 may be maintained by the spacer SP. For example, a plurality of spacers (SP) adjacent to a plurality of lenses (L) may exist in the barrel 210. Additionally, an intermediate lens (MO) and a plurality of spacers (SP) adjacent to the light source lens 224 may be disposed in the housing 222 or the light source assembly 221 of the light source device 220. In an embodiment, a plurality of spacers SP may be disposed on the upper or lower side of the above-described lens to fix or maintain the position of the lens.

The optical signal generator 230 may be located at the rear end of the barrel 210. The optical signal generator 230 may overlap the lens L in the optical axis or the first direction (X-axis direction).

The optical signal generator 230 may convert the light incident on the first light guide LG1, reflected, and then passing through the N-th lens into an optical signal containing image information.

The optical signal generator 230 may reflect light (first polarized light) reflected from the first light guide LG1. The optical signal generator 230 may generate an optical signal including image information. That is, the light reflected from the optical signal generator 230 may be light containing image information.

The optical signal generator 230 may include a liquid crystal on silicon (LCoS) device.

A silicon liquid crystal display device consists of a silicon wafer (a thin disk used as a semiconductor material) with a CMOS (Complementary Metal-Oxide Semiconductor) array and an anti-reflection coating coated with a transparent electrode (Indium Tin Oxide, ITO). It may be a structure where liquid crystal is placed between members (anti-reflection, AR).

And, an alignment layer is formed on the wafer (silicon wafer) to form initial liquid crystal alignment.

Furthermore, a reflective layer or reflective electrode formed of an aluminum layer and having a high optical reflectance may be located below the alignment layer. The reflective electrode may be located on a silicon wafer. And a semiconductor array (CMOS array) can be formed on the silicon wafer. And data signals can be transmitted through the panel using this semiconductor array.

The optical signal generator 230 may reflect at least a portion of the incident light as it is driven. Additionally, the optical signal generator 230 may reflect light incident on the surface light source for each pixel. Additionally, the intensity of reflected light can also be adjusted depending on the degree of modulation. For example, the optical signal generator 230 may partially modulate the first polarized light into the second polarized light. Accordingly, the light modulated by the second polarization may pass through the first light guide LG1 and the first lens L1 and be provided to the display unit.

That is, the optical signal generator 230 can modulate the retardation of modulated light, that is, polarized light. The optical signal generator 230 may delay the first polarization in various ways. In other words, an electric field can be formed by adjusting the voltage for each pixel (adjusting the voltage of the electrode). And the degree of twist in the liquid crystal can be adjusted according to the adjusted voltage. For example, at the maximum voltage, all of the light reflected from the optical signal generator 230 may be reflected from the first light guide LG1. And at the minimum voltage, all of the light reflected from the optical signal generator 230 may be transmitted through the second light guide LG1. However, it may operate in the opposite direction depending on the electric field. Additionally, when a moderate voltage is applied, some light may pass through the first light guide LG1. That is, the intensity (eg, brightness) of light provided to the display unit may be medium.

In this way, the optical signal generated by the optical signal generator 230 may be transmitted to the first lens L1 through the N-th lens Ln and the first light guide LG1. Furthermore, at least a portion of the optical signal generated by the optical signal generator 230 may pass through the first lens L1 and enter the display unit.

Additionally, a transparent member 240 may be further disposed between the optical signal generator 230 and the N-th lens Ln (or first light guide). The transparent member 240 may be glass. The transparent member 240 may be combined with the barrel 210 or the cover (CV). Furthermore, the transparent member 240 may be located on the optical signal generator 230. Accordingly, the inflow of foreign substances into the optical signal generator 230 can be easily blocked. And the transparent member 240 may have the same or different size from the optical signal generator 230. Furthermore, the transparent member 240 may overlap at least a portion of the optical signal generator 230 in the optical axis direction or the first direction (X-axis direction).

Furthermore, the heat dissipation portion HD may extend from the outer surface of the housing 222 to the frame 100 . As described above, the heat dissipation unit HD is disposed on the outer surface of the housing 222 and may contact the substrate 225 exposed in the housing 222. At this time, the heat dissipation unit HD may not be located on the inner surface 200IS of the optical device 200. That is, the heat dissipation unit HD may be located on a surface opposite to the inner surface 200IS of the optical device 200. Furthermore, the heat dissipation unit HD may be located on a surface opposite to the inner surface 100IS of the frame 100. That is, the heat dissipation unit HD may not be disposed along the inner surface 100IS of the frame 100.

The heat dissipation portion HD may extend along the outer surface of the housing 222 and extend to the front frame. Additionally, the heat dissipation unit HD may extend from the inside of the frame along the edge of the glass or lens GL.

Furthermore, the heat dissipation unit HD may extend adjacent to the optical signal generating unit 230. For example, the heat dissipation unit HD may extend from the light source device 220 to the lower side of the optical signal generator 230. Accordingly, not only the light source but also the heat generated by the optical signal generator 230 can be easily discharged to the outside. At this time, as described above, the heat dissipation unit HD may extend along the opposite side, that is, the outer side, rather than the inner side, of the optical device 200IS. Accordingly, the wearer may hardly feel any heat. That is, the heat dissipation unit HD may extend upward from the lower side of the optical signal generating unit 230 along the outer surface of the optical device 200 and along the side of the light source device.

Looking further at FIG. 13, the light (La, Lb, Lc) emitted from each light source 223 of the light source device 220 passes through the light source lens 224, the second light guide LG2, and the intermediate lens (MO). can do. For example, the first light (La), the second light (Lb), and the third light (Lc) emitted from each of the first light source 223a to the third light source 223b are directed in the same direction in the second light guide LG2. can be released as

For example, the second light guide LG2 may include a first coating surface (LG2a) and a second coating surface (LG2b). As described above, one of these at least two coating surfaces may reflect some of the first wavelength light, the second wavelength light, and the third wavelength light. For example, the first wavelength includes a wavelength band of red light. The second wavelength includes a wavelength band of green light. The third wavelength includes a wavelength band of blue light.

Additionally, the first coating surface LG2a may reflect the first light La or light of the first wavelength. That is, the first coating surface LG2a can transmit the second light Lb and the third light Lc. In other words, the first coating surface LG2a can transmit light of the second wavelength and light of the third wavelength.

The second coating surface LG2b may reflect the second light Lb or light of the second wavelength. That is, the second coating surface LG2b can transmit the first light La and the third light Lc. In other words, the second coating surface LG2b can transmit light of the first wavelength and light of the third wavelength.

Accordingly, the first light La may be reflected or incident on the intermediate lens MO or the opening OP in the second light guide LG2. And in the second light guide LG2, the second light Lb may be reflected or incident on the intermediate lens MO or the opening OP. Additionally, the third light Lc may be reflected or incident on the intermediate lens MO or the opening OP from the second light guide LG2.

Accordingly, the light (IL or (La, Lb, Lc)) emitted from the light source 223 may be incident on the first light guide LG. At this time, the light incident on the first light guide LG may be the first incident light IL.

Looking further at FIG. 14 , the first incident light IL may be partially reflected and partially transmitted by the first light guide LG1. That is, the first light guide LG1 may reflect the first polarized light ILa of the first incident light IL and transmit the second polarized light ILb. For example, the first polarization (ILa) and the second polarization (ILb) may each be different types of S/P light. Accordingly, the first polarized light ILa, which is part of the first incident light IL, may be provided to the optical signal generator 230 through the N-th lens Ln. And the second polarized light (ILb) may be absorbed by the barrel 210 or provided through the additional hole 210h.

FIG. 15 is a side view of an electronic device according to another embodiment, FIG. 16 is a top view of an electronic device according to another embodiment, FIG. 17 is a side view of an electronic device according to another embodiment, and FIG. 18 is another embodiment. This is a top view of an electronic device according to . Except for the content described below, the content of the frame, optical device, display unit, and heat dissipation unit described above may be applied in the same manner as the content described above.

Referring to FIGS. 15 and 16 , the electronic device according to the embodiment may further include a heat supply unit HL disposed on the frame 100 .

The heat supply unit HL may be located inside the frame 100. That is, the heat supply unit HL may surround the edge of the lens GL inside the frame 100 like the heat dissipation unit HD. Accordingly, fogging, etc. can be prevented more effectively.

The heat supply unit HL may be electrically connected to the optical device 200. Furthermore, the heat supply unit HL may be electrically connected to a controller or control unit within the electronic device. Alternatively, the heat supply unit (HL) may be electrically connected to a controller or control unit within the optical device.

The heat dissipation unit HD and the heat supply unit HL may be sealed with a sealing member (eg, epoxy) to reduce the influence of moisture from the outside. Furthermore, when fogging occurs on the lens due to a temperature difference and the fogging is not sufficiently removed by the heat dissipation unit HD, the heat supply unit HL can supplement the insufficient heat.

Furthermore, the heat supply unit (HL) and the heat dissipation unit (HD) may be spaced apart from each other. Accordingly, the heat dissipation unit HD can be minimally affected by the heat generated from the heat supply unit HL. That is, the heat dissipation unit HD can efficiently radiate heat generated from the light source and the substrate rather than heat generated from the heat supply unit HL.

For example, the heat supply unit HL and the heat dissipation unit HD may extend in parallel within the frame even if they are separated by a predetermined distance. Accordingly, the occurrence of fogging phenomenon can be more effectively eliminated.

Looking further at FIGS. 17 and 18 , the heat supply unit HL may be located inside the frame 100 as described above. That is, the heat supply unit HL may surround the edge of the lens GL inside the frame 100 like the heat dissipation unit HD. Accordingly, fogging, etc. can be prevented more effectively.

The heat supply unit HL may be electrically connected to the optical device 200. Furthermore, the heat supply unit HL may be electrically connected to a controller or control unit within the electronic device. Alternatively, the heat supply unit (HL) may be electrically connected to a controller or control unit within the optical device.

The heat dissipation unit HD and the heat supply unit HL may be sealed with a sealing member (eg, epoxy) to reduce the influence of moisture from the outside. Furthermore, when fogging occurs on the lens due to a temperature difference and the fogging is not sufficiently removed by the heat dissipation unit HD, the heat supply unit HL can supplement the insufficient heat.

Furthermore, the heat supply unit (HL) and the heat dissipation unit (HD) may be spaced apart from each other. Accordingly, the heat dissipation unit HD can be minimally affected by the heat generated from the heat supply unit HL.

In this embodiment, the frame 100 may include an upper area (US) and a lower area (BS). The upper area US and the lower area BS may bisect the lens GL. At this time, either the heat dissipation unit HD or the heat supply unit HL may be disposed in either the upper area US or the lower area BS. Additionally, the other one of the heat dissipation unit (HD) and the heat supply unit (HL) may be disposed in the other one of the upper area (US) and the lower area (BS). For example, the heat dissipation unit HD may be located in the upper area US. Additionally, a heat supply unit (HL) may be located in the lower area (BS).

In addition, as a modified example, the heat dissipation unit HD is arranged to surround the lens GL along the edge of the lens GL within the frame 100, but the heat supply unit HL is located in a portion of the frame 100. It can be located in . Accordingly, in order to effectively remove fogging, the heat supply unit HL may be located at a relatively high rate in the lower area or upper area.

With this configuration, energy efficiency and effective fogging phenomenon can be achieved.

Claims (10)

frame;
An optical device disposed in the frame to generate an image;
a display unit connected to the optical device and outputting an image generated by the optical device; and
An electronic device comprising: a heat dissipation unit connected to the optical device and disposed inside the frame.
According to paragraph 1,
The optical device is,
A barrel on which a plurality of lenses are disposed;
an opening formed on a side of the barrel;
An electronic device comprising a light source device coupled to the opening.
According to paragraph 2,
The light source device is
a housing having an opening;
a light source emitting light toward the second light guide; and
An electronic device comprising: a substrate connected to the light source.
According to paragraph 3,
The heat dissipation unit is an electronic device in contact with the substrate.
According to paragraph 3,
The electronic device wherein the heat dissipation portion extends from the outer surface of the housing to the frame.
According to clause 4,
The optical device includes an optical signal generator that generates an optical signal including image information,
An electronic device wherein the heat dissipation unit extends adjacent to the optical signal generating unit.
According to paragraph 1,
An electronic device comprising a heat supply unit disposed on the frame.
In clause 7,
An electronic device in which the heat supply unit and the heat dissipation unit are spaced apart from each other.
In clause 7,
The frame has an upper area; and a lower region disposed below the upper region,
One of the heat supply unit and the heat dissipation unit is disposed in the upper region,
The other one of the heat supply unit and the heat dissipation unit is disposed in the lower area.
According to paragraph 1,
An electronic device wherein the heat dissipation unit is disposed along an outer surface of the frame.

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