WO2017146452A1

WO2017146452A1 - Head-up display device for vehicle

Info

Publication number: WO2017146452A1
Application number: PCT/KR2017/001928
Authority: WO
Inventors: 권오진; 이경일; 이승규
Original assignee: 엘지전자 주식회사
Priority date: 2016-02-26
Filing date: 2017-02-22
Publication date: 2017-08-31

Abstract

The present invention relates to a head-up display device for a vehicle, comprising: a plurality of light emitting elements; an image forming panel for forming an image on the basis of light provided from the plurality of light emitting elements, and outputting the image; a lens system disposed between the plurality of light emitting elements and the image forming panel so as to transmit light generated from the plurality of light emitting elements to the image forming panel; and a processor for controlling the plurality of light emitting elements and the image forming panel, wherein each of the plurality of light emitting elements is mounted on a circuit board by direct bonding.

Description

Car Head Up Display Device

The present invention relates to a head up display device for a vehicle.

The vehicle is a device for moving in the direction desired by the user on board. An example is a car.

On the other hand, for the convenience of the user using the vehicle, various types of sensors, electronic devices, etc. are provided. In particular, research on the Advanced Driver Assistance System (ADAS) has been actively conducted for the user's driving convenience. In addition, development of autonomous vehicles is being actively conducted.

Meanwhile, there is a need for development of various devices for interface between a vehicle and a user. In particular, research is being actively conducted on a head-up display device in which a screen is implemented on a wind shield so that a user can recognize information while driving.

In such a head-up display device, an image is displayed by a light source, but the head-up display device according to the prior art has a problem of low system efficiency.

In particular, there is a problem that the lens system is not configured to efficiently use the light generated by the light emitting device.

In order to solve the above problems, an embodiment of the present invention provides a vehicle head-up display device having improved system efficiency, in particular, light efficiency.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a vehicle head-up display device according to an embodiment of the present invention, a plurality of light emitting elements; An image forming panel for forming and outputting an image based on light provided from the plurality of light emitting devices; A lens system disposed between the plurality of light emitting elements and the image forming panel to transfer light generated by the plurality of light emitting elements to the image forming panel; And a processor controlling the plurality of light emitting elements and the image forming panel, wherein each of the plurality of light emitting elements is mounted on a circuit board by direct bonding.

Specific details of other embodiments are included in the detailed description and the drawings.

According to an embodiment of the present invention, there are one or more of the following effects.

First, local dimming can be applied as needed.

Second, the power consumption is reduced and the energy efficiency is increased.

Third, there is an effect that the optical efficiency is increased.

Fourth, there is an effect that the implemented screen is uniformly implemented.

Fifth, there is an advantageous effect on the thermal management of the light source.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a view showing the appearance of a vehicle according to an embodiment of the present invention.

2 is a view of the vehicle according to an embodiment of the present invention from various angles from the outside.

3 to 4 are views illustrating the interior of a vehicle according to an embodiment of the present invention.

5 to 6 are views referred to for describing an object according to an embodiment of the present invention.

7 is a block diagram referenced to describe a vehicle according to an embodiment of the present invention.

8A is a diagram illustrating an appearance of a head up display apparatus according to an exemplary embodiment of the present invention, and FIG. 8B is a conceptual diagram referred to for describing a head up display according to an exemplary embodiment of the present invention.

9A to 9B are views referred to for describing an image generating unit included in a vehicle head up display apparatus according to an embodiment of the present invention.

10 to 12 are diagrams for explaining the FEL according to an embodiment of the present invention.

FIG. 13 is a diagram referred to describe an area of an image forming panel corresponding to a cell size of a FEL according to an embodiment of the present invention.

FIG. 14 is a diagram for describing various regions according to various optical patterns of a FEL from the standpoint of an image forming panel according to an embodiment of the present invention.

15A to 15C are exemplary views referred to for describing an operation of implementing a screen of a head-up display apparatus according to an exemplary embodiment of the present invention.

16 to 17 are views for explaining the light emitting device according to the embodiment of the present invention.

18 is a diagram referred to describe a backlight unit according to an embodiment of the present invention.

19 to 21 are views referred to for describing a head-up display apparatus when a plurality of light emitting elements forms an array according to an exemplary embodiment of the present invention.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, and the same or similar components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "unit" for components used in the following description are given or used in consideration of ease of specification, and do not have distinct meanings or roles from each other. In addition, in describing the embodiments disclosed herein, when it is determined that the detailed description of the related known technology may obscure the gist of the embodiments disclosed herein, the detailed description thereof will be omitted. In addition, the accompanying drawings are intended to facilitate understanding of the embodiments disclosed herein, but are not limited to the technical spirit disclosed herein by the accompanying drawings, all changes included in the spirit and scope of the present invention. It should be understood to include equivalents and substitutes.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being "connected" or "connected" to another component, it may be directly connected to or connected to that other component, but it may be understood that other components may be present in between. Should be. On the other hand, when a component is said to be "directly connected" or "directly connected" to another component, it should be understood that there is no other component in between.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, the terms "comprises" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

The vehicle described herein may be a concept including an automobile and a motorcycle. In the following, a vehicle is mainly described for a vehicle.

The vehicle described herein may be a concept including both an internal combustion engine vehicle having an engine as a power source, a hybrid vehicle having an engine and an electric motor as a power source, and an electric vehicle having an electric motor as a power source.

In the following description, the left side of the vehicle means the left side of the driving direction of the vehicle, and the right side of the vehicle means the right side of the driving direction of the vehicle.

1 to 7, the vehicle 100 may include a wheel that rotates by a power source and a steering input device 510 for adjusting a traveling direction of the vehicle 100.

The vehicle 100 may be an autonomous vehicle.

The vehicle 100 may be switched to an autonomous driving mode or a manual mode based on a user input.

For example, the vehicle 100 may be switched from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on the received user input through the user interface device 200.

The vehicle 100 may be switched to the autonomous driving mode or the manual mode based on the driving situation information. The driving situation information may be generated based on the object information provided by the object detecting apparatus 300.

For example, the vehicle 100 may be switched from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on the driving situation information generated by the object detecting apparatus 300.

For example, the vehicle 100 may be switched from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on the driving situation information received through the communication device 400.

The vehicle 100 may switch from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on information, data, and signals provided from an external device.

When the vehicle 100 is driven in the autonomous driving mode, the autonomous vehicle 100 may be driven based on the driving system 700.

For example, the autonomous vehicle 100 may be driven based on information, data, or signals generated by the driving system 710, the parking system 740, and the parking system 750.

When the vehicle 100 is driven in the manual mode, the autonomous vehicle 100 may receive a user input for driving through the driving manipulation apparatus 500. Based on a user input received through the driving manipulation apparatus 500, the vehicle 100 may be driven.

The overall length is the length from the front to the rear of the vehicle 100, the width is the width of the vehicle 100, and the height is the length from the bottom of the wheel to the roof. In the following description, the full length direction L is a direction in which the full length measurement of the vehicle 100 is a reference, the full width direction W is a direction in which the full width measurement of the vehicle 100 is a reference, and the total height direction H is a vehicle. It may mean the direction which is the reference of the height measurement of (100).

As illustrated in FIG. 7, the vehicle 100 includes a user interface device 200, an object detecting device 300, a communication device 400, a driving manipulation device 500, a vehicle driving device 600, and a traveling system. 700, a navigation system 770, a sensing unit 120, an interface unit 130, a memory 140, a control unit 170, and a power supply unit 190 may be included.

According to an embodiment, the vehicle 100 may further include other components in addition to the components described herein, or may not include some of the components described.

The user interface device 200 is a device for communicating with the vehicle 100 and a user. The user interface device 200 may receive a user input and provide the user with information generated in the vehicle 100. The vehicle 100 may implement user interfaces (UI) or user experience (UX) through the user interface device 200.

The user interface device 200 may include an input unit 210, an internal camera 220, a biometric detector 230, an output unit 250, and a processor 270.

According to an embodiment, the user interface device 200 may further include other components in addition to the described components, or may not include some of the described components.

The input unit 200 is for receiving information from a user, and the data collected by the input unit 120 may be analyzed by the processor 270 and processed as a control command of the user.

The input unit 200 may be disposed in the vehicle. For example, the input unit 200 may include one area of a steering wheel, one area of an instrument panel, one area of a seat, one area of each pillar, and a door. one area of the door, one area of the center console, one area of the head lining, one area of the sun visor, one area of the windshield or of the window It may be disposed in one area or the like.

The input unit 200 may include a voice input unit 211, a gesture input unit 212, a touch input unit 213, and a mechanical input unit 214.

The voice input unit 211 may convert a user's voice input into an electrical signal. The converted electrical signal may be provided to the processor 270 or the controller 170.

The voice input unit 211 may include one or more microphones.

The gesture input unit 212 may convert a user's gesture input into an electrical signal. The converted electrical signal may be provided to the processor 270 or the controller 170.

The gesture input unit 212 may include at least one of an infrared sensor and an image sensor for detecting a user's gesture input.

According to an embodiment, the gesture input unit 212 may detect a 3D gesture input of the user. To this end, the gesture input unit 212 may include a light output unit or a plurality of image sensors for outputting a plurality of infrared light.

The gesture input unit 212 may detect a user's 3D gesture input through a time of flight (TOF) method, a structured light method, or a disparity method.

The touch input unit 213 may convert a user's touch input into an electrical signal. The converted electrical signal may be provided to the processor 270 or the controller 170.

The touch input unit 213 may include a touch sensor for detecting a user's touch input.

According to an embodiment, the touch input unit 213 may be integrally formed with the display unit 251 to implement a touch screen. Such a touch screen may provide an input interface and an output interface between the vehicle 100 and the user.

The mechanical input unit 214 may include at least one of a button, a dome switch, a jog wheel, and a jog switch. The electrical signal generated by the mechanical input unit 214 may be provided to the processor 270 or the controller 170.

The mechanical input unit 214 may be disposed on a steering wheel, a cente facia, a center console, a cockpit module, a door, or the like.

The internal camera 220 may acquire a vehicle interior image. The processor 270 may detect a state of the user based on the vehicle interior image. The processor 270 may acquire the gaze information of the user from the vehicle interior image. The processor 270 may detect a gesture of the user in the vehicle interior image.

The biometric detector 230 may acquire biometric information of the user. The biometric detector 230 may include a sensor for acquiring biometric information of the user, and may acquire fingerprint information, heartbeat information, etc. of the user using the sensor. Biometric information may be used for user authentication.

The output unit 250 is for generating output related to visual, auditory or tactile.

The output unit 250 may include at least one of the display unit 251, the audio output unit 252, and the haptic output unit 253.

The display unit 251 may display graphic objects corresponding to various pieces of information.

The display unit 251 is a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display (flexible) display, a 3D display, or an e-ink display.

The display unit 251 forms a layer structure or is integrally formed with the touch input unit 213 to implement a touch screen.

The display unit 251 may be implemented as a head up display (HUD). When the display unit 251 is implemented as a HUD, the display unit 251 may include a projection module to output information through an image projected on a wind shield or a window.

The display unit 251 may include a transparent display. The transparent display can be attached to the wind shield or window.

The transparent display may display a predetermined screen while having a predetermined transparency. Transparent display, in order to have transparency, transparent display is transparent thin film elecroluminescent (TFEL), transparent organic light-emitting diode (OLED), transparent liquid crystal display (LCD), transmissive transparent display, transparent light emitting diode (LED) display It may include at least one of. The transparency of the transparent display can be adjusted.

The user interface device 200 may include a plurality of display units 251a to 251g.

The display unit 251 may include one region of the steering wheel, one

region

521a, 251b, and 251e of the instrument panel, one region 251d of the seat, one region 251f of each pillar, and one region of the door ( 251g), one area of the center console, one area of the head lining, one area of the sun visor, or may be implemented in one area 251c of the windshield and one area 251h of the window.

The sound output unit 252 converts an electrical signal provided from the processor 270 or the controller 170 into an audio signal and outputs the audio signal. To this end, the sound output unit 252 may include one or more speakers.

The haptic output unit 253 generates a tactile output. For example, the haptic output unit 253 may vibrate the steering wheel, the seat belt, and the seats 110FL, 110FR, 110RL, and 110RR so that the user may recognize the output.

The processor 270 may control the overall operation of each unit of the user interface device 200.

According to an embodiment, the user interface device 200 may include a plurality of processors 270 or may not include the processor 270.

When the processor 270 is not included in the user interface device 200, the user interface device 200 may be operated under the control of the processor or the controller 170 of another device in the vehicle 100.

The user interface device 200 may be referred to as a vehicle display device.

The user interface device 200 may be operated under the control of the controller 170.

The object detecting apparatus 300 is a device for detecting an object located outside the vehicle 100.

The object may be various objects related to the driving of the vehicle 100.

5 to 6, the object O includes a lane OB10, another vehicle OB11, a pedestrian OB12, a two-wheeled vehicle OB13, traffic signals OB14, OB15, light, a road, a structure, Speed bumps, features, animals and the like can be included.

The lane OB10 may be a driving lane, a lane next to the driving lane, and a lane in which an opposite vehicle travels. The lane OB10 may be a concept including left and right lines forming a lane.

The other vehicle OB11 may be a vehicle that is driving around the vehicle 100. The other vehicle may be a vehicle located within a predetermined distance from the vehicle 100. For example, the other vehicle OB11 may be a vehicle that precedes or follows the vehicle 100.

The pedestrian OB12 may be a person located near the vehicle 100. The pedestrian OB12 may be a person located within a predetermined distance from the vehicle 100. For example, the pedestrian OB12 may be a person located on a sidewalk or a roadway.

The two-wheeled vehicle OB12 may be a vehicle that is positioned around the vehicle 100 and moves using two wheels. The motorcycle OB12 may be a vehicle having two wheels located within a predetermined distance from the vehicle 100. For example, the motorcycle OB13 may be a motorcycle or a bicycle located on sidewalks or roadways.

The traffic signal may include a traffic light OB15, a traffic sign OB14, a pattern or text drawn on a road surface.

The light may be light generated by a lamp provided in another vehicle. The light, can be light generated from the street light. The light may be sunlight.

The road may include a road surface, a curve, an uphill slope, a slope downhill, or the like.

The structure may be an object located around a road and fixed to the ground. For example, the structure may include a street lamp, a roadside tree, a building, a power pole, a traffic light, a bridge.

The features may include mountains, hills, and the like.

On the other hand, the object may be classified into a moving object and a fixed object. For example, the moving object may be a concept including another vehicle and a pedestrian. For example, the fixed object may be a concept including a traffic signal, a road, and a structure.

The object detecting apparatus 300 may include a camera 310, a radar 320, a lidar 330, an ultrasonic sensor 340, an infrared sensor 350, and a processor 370.

According to an embodiment, the object detecting apparatus 300 may further include other components in addition to the described components, or may not include some of the described components.

The camera 310 may be located at a suitable place outside the vehicle to acquire an image outside the vehicle. The camera 310 may be a mono camera, a stereo camera 310a, an around view monitoring (AVM) camera 310b, or a 360 degree camera.

For example, the camera 310 may be disposed in close proximity to the front windshield in the interior of the vehicle in order to acquire an image in front of the vehicle. Alternatively, the camera 310 may be disposed around the front bumper or the radiator grille.

For example, the camera 310 may be disposed in close proximity to the rear glass in the interior of the vehicle to acquire an image of the rear of the vehicle. Alternatively, the camera 310 may be disposed around the rear bumper, the trunk, or the tail gate.

For example, the camera 310 may be disposed in close proximity to at least one of the side windows in the interior of the vehicle to acquire an image of the vehicle side. Alternatively, the camera 310 may be arranged around the side mirror, fender or door.

The camera 310 may provide the obtained image to the processor 370.

The radar 320 may include an electromagnetic wave transmitter and a receiver. The radar 320 may be implemented in a pulse radar method or a continuous wave radar method in terms of radio wave firing principle. The radar 320 may be implemented by a frequency modulated continuous wave (FSCW) method or a frequency shift key (FSK) method according to a signal waveform among the continuous wave radar methods.

The radar 320 detects an object based on a time of flight (TOF) method or a phase-shift method based on an electromagnetic wave, and detects the position of the detected object, distance to the detected object, and relative velocity. Can be detected.

The radar 320 may be disposed at an appropriate position outside the vehicle to detect an object located in front, rear, or side of the vehicle.

The lidar 330 may include a laser transmitter and a receiver. The lidar 330 may be implemented in a time of flight (TOF) method or a phase-shift method.

The lidar 330 may be implemented as driven or non-driven.

When implemented in a driving manner, the lidar 330 may be rotated by a motor and detect an object around the vehicle 100.

When implemented in a non-driven manner, the lidar 330 may detect an object located within a predetermined range with respect to the vehicle 100 by optical steering. The vehicle 100 may include a plurality of non-driven lidars 330.

The lidar 330 detects an object based on a time of flight (TOF) method or a phase-shift method using laser light, and detects an object, a position of the detected object, a distance from the detected object, and Relative speed can be detected.

The lidar 330 may be disposed at an appropriate position outside the vehicle to detect an object located in front, rear, or side of the vehicle.

The ultrasonic sensor 340 may include an ultrasonic transmitter and a receiver. The ultrasonic sensor 340 may detect an object based on the ultrasonic wave, and detect a position of the detected object, a distance to the detected object, and a relative speed.

The ultrasonic sensor 340 may be disposed at an appropriate position outside the vehicle to detect an object located in front, rear, or side of the vehicle.

The infrared sensor 350 may include an infrared transmitter and a receiver. The infrared sensor 340 may detect an object based on infrared light, and detect a position of the detected object, a distance to the detected object, and a relative speed.

The infrared sensor 350 may be disposed at an appropriate position outside the vehicle to detect an object located in front, rear, or side of the vehicle.

The processor 370 may control overall operations of each unit of the object detecting apparatus 300.

The processor 370 may detect and track the object based on the obtained image. The processor 370 may perform operations such as calculating a distance to an object and calculating a relative speed with the object through an image processing algorithm.

The processor 370 may detect and track the object based on the reflected electromagnetic wave reflected by the transmitted electromagnetic wave to the object. The processor 370 may perform an operation such as calculating a distance from the object, calculating a relative speed with the object, and the like based on the electromagnetic waves.

The processor 370 may detect and track the object based on the reflected laser light reflected by the transmitted laser back to the object. The processor 370 may perform an operation such as calculating a distance from the object, calculating a relative speed with the object, and the like based on the laser light.

The processor 370 may detect and track the object based on the reflected ultrasound, in which the transmitted ultrasound is reflected by the object and returned. The processor 370 may perform an operation such as calculating a distance from the object, calculating a relative speed with the object, and the like based on the ultrasound.

The processor 370 may detect and track the object based on the reflected infrared light from which the transmitted infrared light is reflected back to the object. The processor 370 may perform an operation such as calculating a distance to the object, calculating a relative speed with the object, and the like based on the infrared light.

According to an embodiment, the object detecting apparatus 300 may include a plurality of processors 370 or may not include the processor 370. For example, each of the camera 310, the radar 320, the lidar 330, the ultrasonic sensor 340, and the infrared sensor 350 may individually include a processor.

When the processor 370 is not included in the object detecting apparatus 300, the object detecting apparatus 300 may be operated under the control of the processor or the controller 170 of the apparatus in the vehicle 100.

The object detecting apparatus 400 may be operated under the control of the controller 170.

The communication device 400 is a device for performing communication with an external device. Here, the external device may be another vehicle, a mobile terminal or a server.

The communication device 400 may include at least one of a transmit antenna, a receive antenna, a radio frequency (RF) circuit capable of implementing various communication protocols, and an RF element to perform communication.

The communication device 400 may include a short range communication unit 410, a location information unit 420, a V2X communication unit 430, an optical communication unit 440, a broadcast transceiver 450, and a processor 470.

According to an embodiment, the communication device 400 may further include other components in addition to the described components, or may not include some of the described components.

The short range communication unit 410 is a unit for short range communication. The local area communication unit 410 may include Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Near Field Communication (NFC), and Wi-Fi (Wireless). Local area communication may be supported using at least one of Fidelity, Wi-Fi Direct, and Wireless Universal Serial Bus (USB) technologies.

The short range communication unit 410 may form short range wireless networks to perform short range communication between the vehicle 100 and at least one external device.

The location information unit 420 is a unit for obtaining location information of the vehicle 100. For example, the location information unit 420 may include a global positioning system (GPS) module or a differential global positioning system (DGPS) module.

The V2X communication unit 430 is a unit for performing wireless communication with a server (V2I: Vehicle to Infra), another vehicle (V2V: Vehicle to Vehicle), or a pedestrian (V2P: Vehicle to Pedestrian). The V2X communication unit 430 may include an RF circuit that can implement a communication with the infrastructure (V2I), an inter-vehicle communication (V2V), and a communication with the pedestrian (V2P).

The optical communication unit 440 is a unit for performing communication with an external device via light. The optical communication unit 440 may include an optical transmitter that converts an electrical signal into an optical signal and transmits the external signal to the outside, and an optical receiver that converts the received optical signal into an electrical signal.

According to an embodiment, the light emitting unit may be formed to be integrated with the lamp included in the vehicle 100.

The broadcast transceiver 450 is a unit for receiving a broadcast signal from an external broadcast management server or transmitting a broadcast signal to a broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, and a data broadcast signal.

The processor 470 may control the overall operation of each unit of the communication device 400.

According to an embodiment, the communication device 400 may include a plurality of processors 470 or may not include the processor 470.

When the processor 470 is not included in the communication device 400, the communication device 400 may be operated under the control of the processor or the controller 170 of another device in the vehicle 100.

Meanwhile, the communication device 400 may implement a vehicle display device together with the user interface device 200. In this case, the vehicle display device may be called a telematics device or an AVN (Audio Video Navigation) device.

The communication device 400 may be operated under the control of the controller 170.

The driving operation apparatus 500 is a device that receives a user input for driving.

In the manual mode, the vehicle 100 may be driven based on a signal provided by the driving manipulation apparatus 500.

The driving manipulation apparatus 500 may include a steering input apparatus 510, an acceleration input apparatus 530, and a brake input apparatus 570.

The steering input device 510 may receive a driving direction input of the vehicle 100 from the user. The steering input device 510 is preferably formed in a wheel shape to enable steering input by rotation. According to an embodiment, the steering input device may be formed in the form of a touch screen, a touch pad, or a button.

The acceleration input device 530 may receive an input for accelerating the vehicle 100 from a user. The brake input device 570 may receive an input for deceleration of the vehicle 100 from a user. The acceleration input device 530 and the brake input device 570 are preferably formed in the form of a pedal. According to an embodiment, the acceleration input device or the brake input device may be formed in the form of a touch screen, a touch pad, or a button.

The driving manipulation apparatus 500 may be operated under the control of the controller 170.

The vehicle drive device 600 is a device that electrically controls the driving of various devices in the vehicle 100.

The vehicle driving apparatus 600 may include a power train driver 610, a chassis driver 620, a door / window driver 630, a safety device driver 640, a lamp driver 650, and an air conditioning driver 660. Can be.

According to an exemplary embodiment, the vehicle driving apparatus 600 may further include other components in addition to the described components, or may not include some of the described components.

On the other hand, the vehicle driving device 600 may include a processor. Each unit of the vehicle drive apparatus 600 may each include a processor individually.

The power train driver 610 may control the operation of the power train device.

The power train driver 610 may include a power source driver 611 and a transmission driver 612.

The power source driver 611 may control the power source of the vehicle 100.

For example, when the fossil fuel-based engine is a power source, the power source driver 610 may perform electronic control of the engine. Thereby, the output torque of an engine, etc. can be controlled. The power source drive unit 611 can adjust the engine output torque under the control of the control unit 170.

For example, when the electric energy based motor is a power source, the power source driver 610 may control the motor. The power source driver 610 may adjust the rotational speed, torque, and the like of the motor under the control of the controller 170.

The transmission driver 612 may control the transmission.

The transmission driver 612 can adjust the state of the transmission. The transmission drive part 612 can adjust the state of a transmission to forward D, backward R, neutral N, or parking P. FIG.

On the other hand, when the engine is a power source, the transmission drive unit 612 can adjust the bite state of the gear in the forward D state.

The chassis driver 620 may control the operation of the chassis device.

The chassis driver 620 may include a steering driver 621, a brake driver 622, and a suspension driver 623.

The steering driver 621 may perform electronic control of a steering apparatus in the vehicle 100. The steering driver 621 may change the traveling direction of the vehicle.

The brake driver 622 may perform electronic control of a brake apparatus in the vehicle 100. For example, the speed of the vehicle 100 may be reduced by controlling the operation of the brake disposed on the wheel.

On the other hand, the brake drive unit 622 can individually control each of the plurality of brakes. The brake driver 622 may control the braking force applied to the plurality of wheels differently.

The suspension driver 623 may perform electronic control of a suspension apparatus in the vehicle 100. For example, when there is a curvature on the road surface, the suspension driver 623 may control the suspension device to control the vibration of the vehicle 100 to be reduced.

Meanwhile, the suspension driver 623 may individually control each of the plurality of suspensions.

The door / window driver 630 may perform electronic control of a door apparatus or a window apparatus in the vehicle 100.

The door / window driver 630 may include a door driver 631 and a window driver 632.

The door driver 631 may control the door apparatus. The door driver 631 may control opening and closing of the plurality of doors included in the vehicle 100. The door driver 631 may control the opening or closing of a trunk or a tail gate. The door driver 631 may control the opening or closing of the sunroof.

The window driver 632 may perform electronic control of the window apparatus. The opening or closing of the plurality of windows included in the vehicle 100 may be controlled.

The safety device driver 640 may perform electronic control of various safety apparatuses in the vehicle 100.

The safety device driver 640 may include an airbag driver 641, a seat belt driver 642, and a pedestrian protection device driver 643.

The airbag driver 641 may perform electronic control of an airbag apparatus in the vehicle 100. For example, the airbag driver 641 may control the airbag to be deployed when the danger is detected.

The seat belt driver 642 may perform electronic control of a seatbelt appartus in the vehicle 100. For example, the seat belt driver 642 may control the passengers to be fixed to the seats 110FL, 110FR, 110RL, and 110RR by using the seat belts when the risk is detected.

The pedestrian protection device driver 643 may perform electronic control of the hood lift and the pedestrian airbag. For example, the pedestrian protection device driver 643 may control the hood lift up and the pedestrian air bag to be deployed when detecting a collision with the pedestrian.

The lamp driver 650 may perform electronic control of various lamp apparatuses in the vehicle 100.

The air conditioning driver 660 may perform electronic control of an air conditioner in the vehicle 100. For example, when the temperature inside the vehicle is high, the air conditioning driver 660 may control the air conditioning apparatus to operate to supply cool air to the inside of the vehicle.

The vehicle driving apparatus 600 may include a processor. Each unit of the vehicle drive apparatus 600 may each include a processor individually.

The vehicle driving apparatus 600 may be operated under the control of the controller 170.

The travel system 700 is a system for controlling various travels of the vehicle 100. The navigation system 700 can be operated in an autonomous driving mode.

The travel system 700 can include a travel system 710, a parking system 740, and a parking system 750.

In some embodiments, the navigation system 700 may further include other components in addition to the described components, or may not include some of the described components.

Meanwhile, the driving system 700 may include a processor. Each unit of the navigation system 700 may each include a processor individually.

In some embodiments, when the driving system 700 is implemented in software, the driving system 700 may be a lower concept of the controller 170.

According to an exemplary embodiment, the driving system 700 may include at least one of the user interface device 200, the object detecting device 300, the communication device 400, the vehicle driving device 600, and the controller 170. It may be a concept to include.

The traveling system 710 may perform driving of the vehicle 100.

The driving system 710 may receive navigation information from the navigation system 770, provide a control signal to the vehicle driving apparatus 600, and perform driving of the vehicle 100.

The driving system 710 may receive object information from the object detecting apparatus 300 and provide a control signal to the vehicle driving apparatus 600 to perform driving of the vehicle 100.

The driving system 710 may receive a signal from an external device through the communication device 400, provide a control signal to the vehicle driving device 600, and perform driving of the vehicle 100.

The taking-out system 740 may perform taking out of the vehicle 100.

The taking-out system 740 may receive navigation information from the navigation system 770, provide a control signal to the vehicle driving apparatus 600, and perform take-out of the vehicle 100.

The taking-out system 740 may receive the object information from the object detecting apparatus 300, provide a control signal to the vehicle driving apparatus 600, and perform take-out of the vehicle 100.

The taking-off system 740 may receive a signal from an external device through the communication device 400, provide a control signal to the vehicle driving apparatus 600, and perform take-out of the vehicle 100.

The parking system 750 may perform parking of the vehicle 100.

The parking system 750 may receive navigation information from the navigation system 770, provide a control signal to the vehicle driving apparatus 600, and perform parking of the vehicle 100.

The parking system 750 may receive the object information from the object detecting apparatus 300, provide a control signal to the vehicle driving apparatus 600, and perform parking of the vehicle 100.

The parking system 750 may receive a signal from an external device through the communication device 400, provide a control signal to the vehicle driving device 600, and perform parking of the vehicle 100.

The navigation system 770 can provide navigation information. The navigation information may include at least one of map information, set destination information, route information according to the destination setting, information on various objects on the route, lane information, and current location information of the vehicle.

The navigation system 770 may include a memory and a processor. The memory may store navigation information. The processor may control the operation of the navigation system 770.

According to an embodiment, the navigation system 770 may receive information from an external device through the communication device 400 and update the pre-stored information.

According to an embodiment, the navigation system 770 may be classified as a subcomponent of the user interface device 200.

The sensing unit 120 may sense a state of the vehicle. The sensing unit 120 may include an attitude sensor (for example, a yaw sensor, a roll sensor, a pitch sensor), a collision sensor, a wheel sensor, a speed sensor, and an inclination. Sensor, weight sensor, heading sensor, yaw sensor, gyro sensor, position module, vehicle forward / reverse sensor, battery sensor, fuel sensor, tire sensor, handle It may include a steering sensor, a vehicle interior temperature sensor, a vehicle interior humidity sensor, an ultrasonic sensor, an illuminance sensor, an accelerator pedal position sensor, a brake pedal position sensor, and the like by rotation.

The sensing unit 120 includes vehicle attitude information, vehicle collision information, vehicle direction information, vehicle position information (GPS information), vehicle angle information, vehicle speed information, vehicle acceleration information, vehicle tilt information, vehicle forward / reverse information, battery Acquire sensing signals for information, fuel information, tire information, vehicle lamp information, vehicle internal temperature information, vehicle internal humidity information, steering wheel rotation angle, vehicle external illumination, pressure applied to the accelerator pedal, pressure applied to the brake pedal, and the like. can do.

The sensing unit 120 may further include an accelerator pedal sensor, a pressure sensor, an engine speed sensor, an air flow sensor (AFS), an intake air temperature sensor (ATS), a water temperature sensor (WTS), and a throttle position sensor. (TPS), TDC sensor, crank angle sensor (CAS), and the like.

The interface unit 130 may serve as a path to various types of external devices connected to the vehicle 100. For example, the interface unit 130 may include a port connectable with the mobile terminal, and may connect with the mobile terminal through the port. In this case, the interface unit 130 may exchange data with the mobile terminal.

Meanwhile, the interface unit 130 may serve as a path for supplying electrical energy to the connected mobile terminal. When the mobile terminal is electrically connected to the interface unit 130, under the control of the controller 170, the interface unit 130 may provide the mobile terminal with electrical energy supplied from the power supply unit 190.

The memory 140 is electrically connected to the controller 170. The memory 140 may store basic data for the unit, control data for controlling the operation of the unit, and input / output data. The memory 140 may be various storage devices such as a ROM, a RAM, an EPROM, a flash drive, a hard drive, and the like, in hardware. The memory 140 may store various data for overall operation of the vehicle 100, such as a program for processing or controlling the controller 170.

According to an embodiment, the memory 140 may be integrally formed with the controller 170 or may be implemented as a subcomponent of the controller 170.

The controller 170 may control the overall operation of each unit in the vehicle 100. The controller 170 may be referred to as an electronic control unit (ECU).

The power supply unit 190 may supply power required for the operation of each component under the control of the controller 170. In particular, the power supply unit 190 may receive power from a battery inside the vehicle.

One or more processors and controllers 170 included in the vehicle 100 may include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), and FPGAs ( It may be implemented using at least one of field programmable gate arrays, processors, controllers, micro-controllers, microprocessors, and electrical units for performing other functions.

8A is a diagram illustrating an appearance of a head up display apparatus according to an exemplary embodiment of the present invention, and FIG. 8B is a conceptual view referred to for explaining a head up display according to an exemplary embodiment of the present invention.

Referring to the drawing, the head-up display apparatus 1000 may be disposed inside the vehicle 100 and provide the generated information to the user.

The head up display apparatus 1000 may be disposed inside the cockpit module. The head up display apparatus 1000 may include a cover 1001 that can be opened and closed according to a user input.

The head-up display apparatus 1000 may generate a graphic object based on the plurality of light emitting elements 1052 and the image forming panel 1055. The generated graphic object may be displayed by being projected by a wind shield. According to an embodiment, the head-up display apparatus 1000 may further include a combiner, and the graphic object may be displayed by being projected onto the combiner.

The head up display apparatus 1000 may provide an augmented reality image.

The head up display apparatus 1000 may include an image generating unit 1050 and a plurality of

mirrors

1002 and 1003. In FIG. 8B, the head-up display apparatus 1000 is illustrated as including two

mirrors

1002 and 1003, but may include three or more mirrors. The plurality of mirrors may include a flat mirror 1002 and a cancave mirror 1003.

The image generating unit 1050 is provided with a backlight unit 1051, and under the control of the processor 1070, may display a display light for implementing an augmented reality image toward the wind shield WS.

The processor 1070 is functionally connected with the indoor camera 220, the camera 310, and the image generating unit 1050 to generate specific enhancements based on the images provided from the indoor camera 220 and / or the camera 310. Image data for constructing a real image may be generated and provided to the image generating unit 1050.

In one embodiment, the processor 1070 detects a specific object OB present in front of the vehicle 100 based on the front image provided from the camera 310 and corresponds to the detected object OB. Image data for constructing an augmented reality image may be provided to the image generating unit 1050.

The image generating unit 1050 may output display light corresponding to the augmented reality image to the first mirror 1002 based on the image data provided from the processor 1070. The second mirror 1003 may reflect the display light reflected from the first mirror 1002 back to the wind shield WS so that the augmented reality image may be implemented through the wind shield WS. By the optical path from the image generating unit 1050 to the wind shield WS, the size of the display light corresponding to the augmented reality image may be enlarged or the projection position with respect to the wind shield WS may be adjusted.

Meanwhile, the display light reflected by the second mirror 1003 may be projected in a predetermined area (hereinafter, display area) of the wind shield WS. A reflective film may be attached to the display area DR so that the augmented reality image ARI can be seen more clearly.

In this case, the augmented reality image is implemented by the display light projected on the wind shield WS. In the driver's position, the augmented reality image ARI is not the display area DR of the wind shield WS, but the display area DR. It may appear to be displayed outside the vehicle 100 beyond. That is, the augmented reality image (ARI) may be recognized as a virtual image that appears to be floating in front of the vehicle 100 in front of a predetermined distance. For example, the augmented reality image ARI may be a graphic object that provides information on the contour, speed, collision warning, and the like of the object OB.

When the head-up display apparatus 1000 implements the augmented reality image ARI through the virtual image, in order for the driver to recognize the augmented reality image ARI through the display area DR, the eye position of the driver may be an eye box. EB). The eye box EB is a space inside a vehicle 100 having a three-dimensional volume, and when the driver's eyes are located in the eye box EB, the augmented reality image ARI is checked through the display area DR. Can be. On the other hand, when the driver's eyes are out of the eye box EB, only a part of the augmented reality image ARI may be visible, or the augmented reality image ARI may not be entirely visible. In the memory 640, coordinate values defining a boundary of the eye box EB may be stored in advance.

On the other hand, if the driver's eyes are located in the eye box EB, even if the driver can recognize the augmented reality image ARI, the driver may change the display area according to the change in the eye position in the eye box EB. An error may occur between the real image of the object OB and the augmented reality image ARI recognized through DR. This is a phenomenon that occurs when the distance to the augmented reality image ARI and the object OB are different from each other based on the driver's position. As the object OB is relatively far, the augmented reality image The error with (ARI) can be gradually increased. In order to reduce or eliminate such errors, the processor 1070 may post-process the augmented reality image (ARI) based on the driver's eye position.

In detail, the processor 1070 may detect the eye position of the driver from the driver image provided from the indoor camera 220. In an embodiment, the processor 1070 may detect the driver's eyes appearing in the driver's image by using an eye tracking technique, and calculate a 3D coordinate value of the detected eyes. In another embodiment, the processor 1070 may extract the driver's face contour from the driver's image by using an edge detection technique, and estimate the driver's eye position based on the extracted contour.

Information about the reference position may be preset in the memory 640, and the processor 1070 may calculate the direction and distance of the eye position relative to the reference position by comparing the driver's eye position with the reference position. That is, the processor 1070 may determine how far in which direction the current eye position of the driver is from the reference position.

The processor 1070 may determine a visual effect to be applied to the post-processing for the augmented reality image according to the direction and distance of the eye position relative to the reference position. In addition, the processor 1070 may determine the size of the determined visual effect.

The processor 1070 post-processes the augmented reality image ARI using the determined visual effect, thereby suppressing an error with an actual image of the object OB generated by a change in eye position in the eye box EB. For example, the driver may provide the driver with improved image matching.

The visual effect applicable to the post-processing for the augmented reality image may include at least one of blurring, position change, size change, shape change, and tilt change for the augmented reality image. For example, as the driver's eye position is changed from side to side along the y axis, when a horizontal error occurs between the augmented reality image and the real image of the object, the processor 1070 may move the augmented reality image horizontally toward the real image. Or through visual effects such as widening the augmented reality image, or blurring at least a portion of the augmented reality image, to compensate for the discrepancy between the two images.

8C is a block diagram of a vehicle head up display apparatus according to an embodiment of the present invention.

Referring to FIG. 8C, a vehicle head up display apparatus (hereinafter, referred to as a head up display apparatus) 1000 may include a communication unit 1010, an input unit 1020, an interface unit 1030, a memory 1040, and an image generating unit 1050. The audio output unit 1060 may include a processor 1070 and a power supply unit 1090.

The head up display apparatus 1000 may be a concept included in the user interface apparatus 200.

The communication unit 1010 may include one or more wireless communication devices between the head-up display apparatus 1000 and the mobile terminal, between the head-up display apparatus 600 and an external server, or between the head-up display apparatus 1000 and another vehicle. It may include a communication module.

For example, the communication unit 1010 may form a communication channel with a mobile terminal of a user through a short range communication module and display information received from the mobile terminal.

The input unit 1020 may receive information from a user. The data collected by the input unit 1020 may be analyzed by the processor 1070 and processed as a user's control command.

Meanwhile, the input unit 210, the internal camera 220, and the camera 310 included in the vehicle 100 may be classified as sub-components of the head-up display apparatus 1000. In detail, the input unit 1020 may include a voice input unit 211, a gesture input unit 212, a touch input unit 213, a mechanical input unit 214, and an internal camera 220.

The interface unit 1030 may receive data, information, or signals, or transmit data, information, or signals processed or generated by the processor 1070 to the outside. To this end, the interface unit 1030 may perform data communication with other units, devices, and systems in the vehicle 100 by wired or wireless communication.

The interface unit 1030 may receive driving situation information.

The memory 1040 is electrically connected to the processor 1070. The memory 1040 may store basic data for each unit of the head-up display apparatus 1000, control data for operation control of each unit, and data input / output.

The memory 1040 may be various storage devices such as a ROM, a RAM, an EPROM, a flash drive, a hard drive, and the like, in hardware. The memory 1040 may store various data for operations of the overall head-up display apparatus 1000, such as a program for processing or controlling the processor 1070.

According to an embodiment, the memory 1040 may be integrally formed with the processor 1070.

The image generating unit 1050 may output display light based on the image data provided from the processor 1070 under the control of the processor 1070.

The image generating unit 1050 may include a backlight unit 1051 and an image forming panel 1055.

The backlight unit 1051 may include a plurality of light emitting elements 1052. For example, in the backlight unit 1051, the plurality of light emitting devices 1052 may include a plurality of light emitting diodes (LEDs).

The plurality of light emitting elements 1052 can output white light, respectively.

The plurality of light emitting devices 1052 may include a first light emitting device 1052a for outputting first light and a second light emitting device 1052b for outputting second light.

The plurality of light emitting devices 1052 may further include a third light emitting device 1052c for outputting third light. In this case, the first light emitting element 1052a may be disposed between the second light emitting element 1052b and the second light emitting element 1052c.

The plurality of light emitting elements 1052 may further include a fourth light emitting element 1052d for outputting fourth light.

In some embodiments, the plurality of light emitting devices 1052 may further include five or more light emitting devices.

The image forming panel 1055 may form and output an image based on light provided from the plurality of light emitting devices. The image forming panel 1055 may include a liquid crystal display (LCD) panel.

The sound output unit 1060 may convert an electric signal provided from the processor 1070 into an audio signal and present the audio signal. To this end, the sound output unit 1060 may include one or more speakers.

The processor 1070 may control the overall operation of each unit of the head-up display apparatus 1000.

The processor 1070 may control the image generating unit 1050. In detail, the processor 1070 may control the plurality of light emitting devices 1052 and the image forming panel 1055.

The processor 1070 may control the plurality of light emitting elements 1052.

The processor 1070 can control the lighting of each of the plurality of light emitting elements 1052. The processor 1070 may control the light output of each of the plurality of light emitting elements 1052.

The processor 1070 may control the light output of the first light emitting device 1052a and the light output of the second light emitting device 1052b differently.

The processor 1070 may control the second light emitting device 1052b and the third light emitting device 1052c to light up individually or together.

The processor 1070 may control the image forming panel 1055.

The processor 1070 may divide the image forming panel 1055 into one or more regions, and control an arrangement state of liquid crystal molecules corresponding to the regions.

The processor 1070 is configured to adjust the arrangement state of the liquid crystal molecules disposed in the first region when uniform light is provided to the first region of the image forming panel 1055 by the first sub fly eye lens (FEL). The image forming panel 1055 may be controlled.

When the uniform light is provided to the second area of the image forming panel 1055 by the second sub FEL, the processor 1070 may adjust the arrangement state of the liquid crystal molecules disposed in the second area. ) Can be controlled.

The processor 1070 controls the light output of the first light emitting device 1052a and controls the image forming panel 1055 so that the arrangement state of the liquid crystal molecules disposed in the first area is adjusted, and outputs through the first area. You can control the brightness of the image.

The processor 1070 controls the light output of the second light emitting device 1052b and controls the image forming panel 1055 so that the arrangement state of the liquid crystal molecules disposed in the second area is adjusted, and outputs through the second area. You can control the brightness of the image.

The processor 1070 controls the light output of the third light emitting device 1052b, and controls the image forming panel 1055 to adjust the arrangement state of the liquid crystal molecules disposed in the second region, and outputs it through the second region. You can control the brightness of the image.

The processor 1070 may control the first light emitting device 1052a and the image forming panel 1055 so that the first image corresponding to the first information is displayed in the first area.

The processor 1070 may control the second light emitting device 1052b and the image forming panel 1055 so that the second image corresponding to the second information is displayed in the second area.

The processor 1070 may control the plurality of light emitting devices 1052 and the image forming panel 1055 in response to the peripheral illumination information. By controlling in this way, the user can accurately recognize the information displayed regardless of the ambient illuminance.

The processor 1070 may control the plurality of light emitting devices 1052 and the image forming panel 1055 so that the scale of the displayed image is adjusted in response to the peripheral illumination information. For example, when the peripheral illuminance value becomes high while the image is displayed based on the first area, the processor 1070 moves the first light emitting device 1052a and the image forming panel 1055 so that the image is displayed larger. Can be controlled.

The processor 1070 may receive at least one of driving speed information, external object information, navigation information, and user's mobile terminal information of the vehicle 100 through the interface unit 1030.

The processor 1070 may display an image displayed in any one of the first area and the second area of the image forming panel 1055 based on at least one of the driving speed information, the external object information, the navigation information, and the mobile terminal information. You can decide.

The processor 1070 may determine the display on the first area or the display on the second area of the image corresponding to the external object based on the distance information with the external object.

The processor 1070 may determine the display on the first area or the display on the second area of the image corresponding to the mobile terminal based on the operation state information of the mobile terminal.

The processor 1070 may control the image generating unit 1050 so that the image is displayed in the determined area.

The processor 1070 may determine the display on the first area or the display on the second area of the image based on the provided image. For example, when the provided image is an augmented reality image, the processor 1070 may control the augmented reality image to be displayed on the second area. For example, when the provided image is a general image, the processor 1070 may control the image to be displayed on the first area.

The power supply unit 1090 may supply power to each unit of the head-up display apparatus 1000 under the control of the processor 1070. In particular, the power supply unit 1090 may receive power from a battery or the like in the vehicle 100.

9A illustrates an exploded perspective view of the image generating unit 1050 according to an embodiment of the present invention. FIG. 9B illustrates a conceptual diagram of the image generating unit 1050.

Referring to the drawing, the image generating unit 1050 may include a backlight unit 1051, a lens system 900, and an image forming panel 1055.

The backlight unit 1051 may include a circuit board 1054 and a plurality of light emitting elements 1052.

Various elements can be mounted on the circuit board 1054.

On the circuit board 1054, a plurality of light emitting devices 1052, a communication unit 1010, an interface unit 1030, a memory 1040, a processor 1070, and a power supply unit 1090 may be mounted.

The circuit board 1054 may be a printed circuit board (PCB) substrate.

The plurality of light emitting elements 1052 may be mounted on the circuit board 1054.

Each of the plurality of light emitting elements 1052 may be mounted on the circuit board 1054 by direct bonding.

Description of the plurality of light emitting elements 1052 will be described in more detail with reference to FIG. 16 and later.

The lens system 900 may be disposed between the backlight unit 1051 and the image forming panel 1055. In detail, the lens system 900 may be disposed between the plurality of light emitting devices 1052 and the image forming panel 1055.

The lens system 900 may transmit light generated by the plurality of light emitting devices 1052 to the image forming panel 1055.

The lens system 900 may include a collimation lens 910, an

illumination lens

920 and 930, and a fly eye lens (FEL) 1100.

The collimation lens 910 may be disposed between the backlight unit 1051 and the FEL 1110. The collimation lens 910 may be disposed between the light emitting element 1052 and the FEL 1110.

The collimation lens 910 can make the light output from the light emitting element 1052 parallel. Light passing through the collimation lens 910 may have an irregular distribution.

The collimation lens 910 may include a first collimation lens group 911 and a second collimation lens group 912.

Since each of the plurality of light emitting elements 1052 is mounted on the circuit board 1054 by direct bonding, the light generated by each of the plurality of light emitting elements 1052 is output at an angle close to 180 degrees. In this case, in one collimation lens group, all of the light generated by the light emitting element 1052 cannot be incident in parallel to the

illumination lenses

920 and 930.

Since the collimation lens 910 includes the first and second

collimation lens groups

911 and 912, light output at an angle close to 180 degrees may be incident in parallel to the

illumination lenses

920 and 930. .

The first collimation lens group 911 may include a plurality of collimation lenses to match the number of the plurality of light emitting elements 1052.

Incident surfaces of the plurality of collimation lenses included in the first collimation lens group 911 may be formed as spherical surfaces having a concave shape. Due to such a shape, the light generated by the light emitting element 1052 can be accommodated to the maximum.

The first collimation lens group 911 may be disposed between the backlight unit 1051 and the second collimation lens group 912. The first collimation lens group 911 may be disposed between the light emitting element 1052 and the second collimation lens group 912.

The first collimation lens group 911 may include a plurality of collimation lenses disposed to correspond to each of the plurality of light emitting elements 1052.

For example, the first collimation lens group 911 may include a first collimation lens corresponding to the first light emitting element and a second collimation lens corresponding to the second light emitting element. The first collimation lens may be disposed between the first light emitting element and the A collimation lens. The second collimation lens may be disposed between the second light emitting element and the B collimation lens.

For example, the first collimation lens group 911 may further include a third collimation lens corresponding to the third light emitting device. The third collimation lens may be disposed between the third light emitting element and the C collimation lens.

For example, the first collimation lens group 911 may further include a fourth collimation lens corresponding to the fourth light emitting element. The fourth collimation lens may be disposed between the fourth light emitting element and the D collimation lens.

The second collimation lens group 912 may include a plurality of collimation lenses to match the number of the plurality of light emitting elements 1052. Each of the plurality of collimation lenses included in the second collimation lens group 912 may be aspherical, and both the incident surface and the exit surface may be convex.

The second collimation lens group 912 may be disposed between the first collimation lens group 911 and the FEL 1100.

The second collimation lens group 912 may include a plurality of collimation lenses disposed corresponding to each of the plurality of light emitting elements 1052.

The second collimation lens group 912 may include an A collimation lens corresponding to the first light emitting element and a B collimation lens corresponding to the second light emitting element.

The A collimation lens may be disposed between the first collimation lens and the FEL 1100. For example, the A collimation lens may be disposed between the first collimation lens and the first sub FEL.

The B collimation lens may be disposed between the second collimation lens and the FEL 1100. For example, the B collimation lens may be disposed between the second collimation lens and the second sub FEL.

For example, the second collimation lens group 912 may further include a C collimation lens corresponding to the third light emitting device.

The C collimation lens may be disposed between the third collimation lens and the FEL 1100. For example, the B collimation lens may be disposed between the third collimation lens and the third sub FEL.

For example, the second collimation lens group 912 may further include a D collimation lens corresponding to the fourth light emitting element.

The D collimation lens may be disposed between the fourth collimation lens and the FEL 1100. For example, the D collimation lens may be disposed between the fourth collimation lens and the fourth sub FEL.

The

illumination lenses

920 and 930 may focus light transmitted through the FEL 1110 to the image forming panel 1055.

The

illumination lenses

920 and 930 may include a first illumination lens 920 and a second illumination lens 930.

The first illumination lens 920 may focus the light dispersed through the FEL 1110 to the second illumination lens 930. To this end, the first illumination lens 920 may be formed to convex the incident surface and the exit surface.

The size of the first illumination lens 920 may be determined by the number of lenses included in the second collimation lens group 912. For this reason, the first illumination lens 920 may guide the light generated by the plurality of light emitting elements 052 to the second illumination lens 930 without leakage.

Alternatively, the size of the first illumination lens 920 may be determined corresponding to the size of the FEL 1100.

The second illumination lens 930 may focus light having different incident angles to the image forming panel 1055. To this end, the first illumination lens 920 may be formed to convex the incident surface and the exit surface.

The second illumination lens 930 may be formed larger in size than the image forming panel 1055. As a result, the second illumination lens 930 may guide the rough light of the first illumination lens 920 to the image forming panel without leakage.

Referring to the drawing, in the FEL 1110, a plurality of optical patterns may be formed corresponding to each of the plurality of light emitting devices 1052.

The FEL 1110 includes a plurality of cells 1101, and in at least one of the plurality of light emitting devices 1052, the light provided to at least some of the plurality of cells 1101 is enlarged to a predetermined size, respectively. The uniform light may be provided to the image forming panel 1055.

In detail, the FEL 1110 speculates incident light through the plurality of cells 1101 and enlarges the spectroscopic lights to a predetermined size so that uniform light is emitted. Each of the plurality of cells 1101 may provide uniform light that passes through each of the plurality of cells 1101 to a predetermined size (or area) of the image forming panel 1055.

The FEL 1110 may include a plurality of

sub FELs

1110a and 1110b having a plurality of optip patterns.

Hereinafter, with reference to FIGS. 11-12, the some sub FEL is demonstrated.

The FEL 1110 may include a first sub FEL 1110a and a second sub FEL 1110b.

In the first sub FEL 1110a, a first optical pattern for inducing the first light output from the first light emitting device 1052a to be uniformly provided to the first region RG1 of the image forming panel 1055 may be formed. Can be.

The first sub FEL 1110a may include a cell 1101a of the first group. The size of the cell 1101a of the first group may correspond to the size of the first region RG1. For example, the size of the first group of cells 1101a and the size of the first region RG1 may form a proportional relationship.

The cell 1101a of the first group is an optical pattern composed of a plurality of unit cells 1101a. The first optical pattern may be implemented by the cells 1101a of the first group.

The first sub FEL 1110a may induce uniform light to be provided to the first area of the image forming panel 1055. Here, the first region RG1 may be a region having a first area in the image forming panel 1055.

The second sub-FEL 1110b may include a second optical pattern that guides the second light output from the second light emitting element 1052b to be uniformly provided to the second region RG2 of the image forming panel 1055. Can be. Here, the second region RG2 may have a different size from the first region RG1.

The second sub FEL 1110b may include a cell 1101b of the second group. The size of the cell 1101b of the second group may correspond to the size of the second region RG2. For example, the size of the second group of cells 1101b and the size of the second region RG2 may form a proportional relationship.

The cell 1101b of the second group is an optical pattern composed of a plurality of unit cells 1101b. The second optical pattern may be implemented by the second group of cells 1101b.

The second sub FEL 1110b may induce uniform light to be provided to the second area of the image forming panel 1055. Here, the second region RG2 may be a region having a second area in the image forming panel 1055.

The first region and the second region may have different sizes. For example, the size of the second region may be larger than the size of the first region. That is, the second region RG2 may be larger than the first region RG1.

Referring to FIG. 13, the first sub FEL 1110a may include a cell 1101a of the first group. The first group of cells 1101a may have a first width cw1 and a first height ch1.

Each of the cells 1101a of the first group may function as a lens.

The first region RG1 of the image forming panel 1055 may be determined by the first sub FEL 1110a.

In detail, the width W1 and the height H1 of the first region RG1 may be determined by the first width cw1 and the first height ch1 of the cells 1101a of the first group. For example, the width W1 of the first region RG1 is determined as a value obtained by multiplying the first width cw1 of the cells 1101a of the first group by the width magnification of the cells 1101a. . In addition, the height H1 of the first region RG1 is determined as a value obtained by multiplying a first magnification of the cell 1101a by the first height ch1 of the cells 1101a of the first group.

The second sub FEL 1110b may include a cell 1101b of the second group. The second group of cells 1101b may have a second width cw2 and a second height ch2.

Each of the cells of the second group 1101b can function as a lens.

The second region RG2 of the image forming panel 1055 may be determined by the second sub FEL 1110b.

Specifically, the width W2 and the height H2 of the second region RG2 may be determined by the second width cw2 and the second height ch2 of the second group of cells 1101b. For example, the width W2 of the second region RG2 is determined as a value obtained by multiplying the second width cw2 of the cell 1101b of the second group by the horizontal magnification of the cell 1101b. In addition, the height H2 of the second region RG2 is determined as a value obtained by multiplying the second height ch2 of the cell 1101b of the second group by the vertical magnification of the cell 1101b.

The FEL 1110 may further include a third sub FEL 1110c.

The third sub FEL 1110c has a third optical pattern formed to induce the third light output from the third light emitting device 1052c to be uniformly provided to the second region RG2 in the image forming panel 1055. Can be. In this case, the third optical pattern of the third sub FEL 1110c may be the same as the second optical pattern of the second sub FEL 1110b.

The third sub FEL 1110c may include a cell 1101c of the third group. The size of the cell 1101c of the third group may correspond to the size of the second region RG2. For example, the size of the third group of cells 1101c and the size of the second region RG2 may form a proportional relationship. The size of the cell 1101c of the third group may be the same as the size of the cell 1101b of the second group. In addition, the number of cells 1101c of the third group may be equal to the number of cells 1101b of the second group.

For the size of the cell of the third group of the third sub FEL 1110c and the size of the second region RG2, the description of the cell 1101b of the second group of the second sub FEL 1110b may be applied.

Meanwhile, the plurality of

sub FELs

1110a, 1110b, and 1110c may be integrally formed to implement the FEL 1110.

Meanwhile, the plurality of

sub FELs

1110a, 1110b, and 1110c may be formed separately to implement the FEL 1110.

Referring to FIG. 14, the image forming panel 1055 may include a plurality of regions. Each of the plurality of regions may be divided based on the FEL 1110.

For example, the size of each of the plurality of regions may be determined by the size of each group cell of each sub FEL included in the FEL 1110.

For example, the position of each of the plurality of regions may be determined by the position of each sub FEL included in the FEL 1110.

For example, the number of the plurality of regions may be determined by the number of sub FELs included in the FEL 1110.

As illustrated in FIG. 14A, the image forming panel 1055 may include a region 1410, b region 1420, and c region 1430. In this case, the plurality of light emitting devices 1052 may include at least three or more individual light emitting devices, and the FEL 1110 may include at least three or more sub FELs. For example, the FEL 1110 may include a sub FEL, b sub FEL, and c sub FEL.

A region 1410 may be formed to correspond to a sub FEL. The region 1410 may be an area corresponding to the entirety of the image forming panel 1055.

The b region 1410 may be formed to correspond to the b sub FEL. The b region 1420 may be formed on the left side of the image forming panel 1055.

The c region 1430 may be formed to correspond to the c sub FEL. The c region 1430 may be formed on the right side of the image forming panel 1055.

As illustrated in FIG. 14B, the image forming panel 1055 may include a region 1410, d region 1440, e region 1450, and f region 1460. In this case, the plurality of light emitting elements 1052 may include at least four individual light emitting elements, and the FEL 1110 may include at least four sub FELs. For example, the FEL 1110 may include a sub FEL, d sub FEL, e sub FEL, and f sub FEL.

The d region 1440 may be formed to correspond to the d sub FEL. The d region 1440 may be formed above the image forming panel 1055.

The e region 1450 may be formed to correspond to the e sub FEL. The e region 1450 may be formed under the image forming panel 1055.

The f region 1460 may be formed to correspond to the f sub FEL. The f region 1460 may be formed in the center of the image forming panel 1055.

In the drawing, the plurality of light emitting elements 1052 are illustrated as including a first light emitting element 1052a, a second light emitting element 1052b, and a third light emitting element 1052c. In addition, the FEL 1110 is illustrated as including the first sub FEL 1110a, the second sub FEL 1110b, and the third sub FEL 1110c.

FIG. 15A is a diagram referred to for describing an operation of implementing the first screen SN1 by the first light emitting device 1052a and the first sub FEL 1110a according to an embodiment of the present invention. The head-up display apparatus 100 of FIG. 15A is an operation for implementing a small screen as compared with FIG. 15B.

Referring to FIG. 15A, the processor 1070 may control light to be output from the first light emitting device 1052a based on the received information, signals, and data. The processor 170 may control to output white light.

Light output from the first light emitting element 1052a is paralleled through the first collimation lens 911a and the A collimation lens 912a.

Light passing through the first collimation lens 911a and the A collimation lens 912a is incident on the first sub FEL 1110a.

The light incident on the first sub FEL 1110a is enlarged to a constant size corresponding to the first region RG1 while passing through each of the group cells 1101a of the first sub FEL 1110a. Further, the light incident on the first sub FEL 1110a is uniform while passing through each of the group cells 1101a of the first sub FEL 1110a.

The light emitted from the first sub FEL 1110a is incident on the image forming panel 1055. In particular, the light emitted from the first sub FEL 1110a is incident on the first region RG1 of the image forming panel 1055.

The processor 1070 may control the image forming panel 1055 so that the arrangement state of the liquid crystal molecules disposed in the first region RG1 is adjusted. For example, the processor 1070 may implement display light for generating an image to the outside by controlling the arrangement state of the liquid crystal molecules.

The processor 1070 may control the image forming panel 1055 to maintain the arrangement state of the liquid crystal molecules disposed in other regions except for the first region RG1.

The first region RG1 of the image forming panel 1055 may be a region corresponding to a part of the entire region. In this case, it is possible to provide light with a smaller output than when providing light toward the entire area. Therefore, when light is provided only to the first region RG1, the efficiency is better than when light is provided to the entire region.

When implementing the screen of the same brightness, by providing light in the first area RG1 than when providing the light in the entire area, it is possible to implement the screen with less energy consumption. In this case, less heat is generated in the light emitting device, which is advantageous in terms of thermal management.

FIG. 15B illustrates the second screen SN2 by the second light emitting device 1052b, the second sub FEL 1110b, the third light emitting device 1052c, and the third sub FEL 1110c according to an embodiment of the present invention. Is a reference referred to for describing an operation implemented). The head up display apparatus 100 of FIG. 15B implements a larger screen as compared to FIG. 15A.

Referring to FIG. 15B, the processor 1070 may control the light to be output from the second light emitting device 1052b and the third light emitting device 1052c based on the received information, signals, and data. According to an embodiment, the processor 1070 may control the light to be output from any one of the second light emitting device 1052b and the third light emitting device 1052c. The processor 1070 may control the white light to be output.

Light output from the second light emitting element 1052b is paralleled through the second collimation lens 911b and the B collimation lens 912b. Light passing through the second collimation lens 911b and the B collimation lens 912b is incident on the second sub FEL 1110b.

The light incident on the second sub FEL 1110b is enlarged to a constant size corresponding to the second region RG2 while passing through each of the group cells 1101a of the second sub FEL 1110b. Further, the light incident on the second sub FEL 1110b becomes uniform while passing through each of the group cells 1101b of the second sub FEL 1110b.

Light emitted from the second sub FEL 1110b is incident on the image forming panel 1055. In particular, the light emitted from the second sub FEL 1110b is incident on the second region RG2 of the image forming panel 1055.

The light output from the third light emitting element 1052c is paralleled through the third collimation lens 911c and the C collimation lens 912c. Light passing through the third collimation lens 910c and the C collimation lens 912c is incident on the third sub FEL 1110c.

The light incident on the third sub FEL 1110c is enlarged to a constant size corresponding to the second region RG2 while passing through each of the group cells of the third sub FEL 1110c. In addition, the light incident on the third sub FEL 1110c becomes uniform while passing through each of the group cells of the third sub FEL 1110c.

Light emitted from the third sub FEL 1110c is incident on the image forming panel 1055. In particular, the light emitted from the third sub FEL 1110c is incident on the second region RG2 of the image forming panel 1055.

The processor 1070 may control the image forming panel 1055 so that the arrangement state of the liquid crystal molecules disposed in the second region RG2 is adjusted. For example, the processor 1070 may implement display light for generating an image to the outside by controlling the arrangement state of the liquid crystal molecules.

The second region RG2 is larger than the first region RG1. In order to display an image with the same brightness, a larger amount of light than that required in the first region RG1 is required. Accordingly, the amount of light required in the second region RG2 may be provided using the second light emitting device 1052b and the third light emitting device 1052c.

FIG. 15C illustrates an operation in which the third screen SN3 is implemented by the first to third light emitting devices 1051a to 1051c and the first to third sub FELs 1110a to 1110c according to an embodiment of the present invention. It is a figure referred to in describing.

Referring to FIG. 15C, the processor 1070 may control light to be output from the first to third light emitting devices 1051a to 1051c based on the received information, signals, and data.

Light output from the first to third light emitting devices 1051a to 1051c is incident on the image forming panel 1055 by a path as described with reference to FIGS. 15A and 15B.

Light output from the first light emitting element 1051a and passed through the first sub FEL 1110a is incident on the first region RG1.

Light output from the second light emitting element 1051b and passing through the second sub FEL 1110b is incident on the second region RG2.

Light output from the third light emitting element 1051c and passed through the third sub FEL 1110c is incident on the second region RG2.

The processor 1070 may control the image forming panel 1055 to adjust an arrangement state of the liquid crystal molecules disposed in the first region RG1 and the liquid crystal molecules disposed in the second region RG2.

In this case, the processor 1070 may control the image forming panel 1055 to display an image in which the user's sure recognition is required in the first region RG1. For example, when it is necessary to provide a notification to a driver in a driving situation, the processor 1070 may provide a warning image through the first area RG1.

Since the image provided through the first region RG1 is implemented by the light output from the first to third light emitting elements 1051a to 1051c, the second region RG2 except for the first region RG1. It may be displayed brighter than the image provided through the area. In this case, the image provided through the first region RG1 may have good visibility.

16 illustrates a light emitting device according to the prior art.

Referring to FIG. 16, in the light emitting device 1600 according to the related art, the LED chip 1690 is bonded on the body 1670 for insulation and housing purposes, and the partition wall 1680 is enclosed to contain the phosphor resin 1695. have.

This structure has a poor heat dissipation efficiency because a plurality of layers are arranged from the circuit board 1610 to the LED chip 1690 to increase the thermal resistance.

In addition, even if the size of the same LED chip, the area of the light emitting surface is enlarged, and the size of the primary lens (for example, a collimation lens) that primarily contains light is large. Therefore, the optical efficiency of the illumination system in which the plurality of light emitting elements are arranged is inferior.

In addition, since the first electrode 1612 and the second electrode 1613 are to be disposed below the light emitting device 1600 according to the related art, the insulating layer 1611 must be additionally provided, and the sub pad 1621 is small. There is no heat dissipation structure.

17 illustrates a light emitting device 1052 according to an embodiment of the present invention.

Referring to FIG. 17, the light emitting device 1052 according to the exemplary embodiment of the present invention may be directly bonded to the circuit board 1054. For example, the light emitting element 1052 may be bonded to a circuit board by direct bonding.

Each of the plurality of light emitting devices 1052 may include a light emitting diode (LED) chip 1730.

In the LED chip 1730, the circuit board 1720 may be bonded by a bonding ray 1710.

Below the LED chip 1730, a second electrode (eg, a + electrode) and a thermal pad 1720 layer may be disposed.

The fluorescent layer 1740 may be disposed on the LED chip 1730.

Meanwhile, the first electrode (eg, -electrode) 1750 may be spaced apart from the LED chip 1730 and disposed on the circuit board 1720.

An insulating layer 1760 may be disposed between the first electrode 1750 and the circuit board 1720.

The light emitting device 1052 illustrated in FIG. 17 may be referred to as a direct bonding structure.

The light emitting device 1052 according to the exemplary embodiment of the present invention directly bonds the LED chip 1730 directly to the circuit board, thereby reducing heat resistance and improving heat dissipation efficiency.

In addition, in the light emitting device 1052 according to the embodiment of the present invention, since only the second electrode is disposed between the LED chip 1730 and the circuit board 1054, an insulating layer is not required under the LED chip 1730. . In addition, since the thermal pad can be widely used, heat dissipation efficiency is good as compared with the light emitting device 1600 of FIG.

In addition, since the size of the LED chip 1730 becomes the light emitting area, the size of the primary lens (for example, the collimation lens 910) is smaller than that of the light emitting device 1600 of FIG. 16 to improve the optical efficiency of the illumination system. do. That is, the light emitting device 1052 of FIG. 17 has an advantage of maintaining the light efficiency as shown in FIG. 16 while implementing a vehicle head-up display device having a smaller size than that of FIG. 16.

Referring to FIG. 18, the backlight unit 1051 may include a circuit board 1054 and a plurality of light emitting

devices

1052a, 1052b, and 1052c.

In FIG. 18, the backlight unit 1051 is illustrated as including three

light emitting elements

1052a, 1052b, and 1052c, but the backlight unit 1051 may include four or more light emitting elements.

Meanwhile, an interval between the plurality of light emitting

devices

1052a, 1052b, and 1052c may be referred to as a pitch p1.

The interval between the plurality of light emitting

devices

1052a, 1052b, and 1052c may be determined according to the size of the LED chip (1730 of FIG. 17) included in the plurality of light emitting

devices

1052a, 1052b, and 1052c.

As described with reference to FIG. 17, the light emission area of each of the plurality of

light emitting elements

1052a, 1052b, and 1052c is determined according to the size of the LED chip 1730.

In addition, the size of the collimation lens (910 of FIG. 9A) is determined according to the size of the LED chip 1730.

The head up display apparatus 1000 includes a plurality of collimation lenses 910 corresponding to the plurality of light emitting elements.

The spacing between the plurality of

light emitting elements

1052a, 1052b, and 1052c has a correlation with the arrangement space of each of the plurality of collimation lenses.

For example, in order for the plurality of collimation lenses to cover all of the light generated by the plurality of

light emitting elements

1052a, 1052b, and 1052c, spaces in which each of the plurality of collimation lenses do not interfere with each other are required.

Therefore, the size of the collimation lens 910 is determined according to the size of the LED chip.

The collimation lens 910 may include a first collimation lens group (911 of FIG. 9) and a second collimation lens group (912 of FIG. 9).

For example, the first collimation lens group 911 may include a first collimation lens, a second collimation lens, and a third collimation lens.

The first collimation lens may be disposed to correspond to the first light emitting device 1052a. For example, the first collimation lens may be disposed to cover all of the light output from the first light emitting element 1052a.

The second collimation lens may be disposed to correspond to the second light emitting device 1052b. For example, the second collimation lens may be disposed to cover all of the light output from the second light emitting element 1052b.

The third collimation lens may be disposed to correspond to the third light emitting device 1052c. For example, the third collimation lens may be disposed to cover all of the light output from the third light emitting element 1052c.

According to an embodiment, the first collimation lens group 911 may further include a fourth collimation lens.

The fourth collimation lens may be disposed to correspond to the fourth light emitting device. For example, the fourth collimation lens may be disposed to cover all of the light output from the fourth light emitting element.

The second collimation lens group 912 may include an A collimation lens, a B collimation lens, and a C collimation lens.

The A collimation lens may correspond to the first light emitting device 1052a.

The size of the A collimation lens may be determined by the first spacing pa between the first light emitting device 1052a and the second light emitting device 1052b. For example, the diameter of the A collimation lens may be equal to the first interval pa. Since the diameter of the A collimation lens is formed to be equal to the first interval pa, the volume occupied by the second collimation lens group 912 can be minimized.

The size of the A collimation lens may be determined by the second gap pb between the first light emitting device 1052a and the third light emitting device 1052c. For example, the diameter of the A collimation lens may be equal to the second interval pb. Due to this structure, the volume occupied by the second collimation lens group 912 can be minimized.

The B collimation lens may correspond to the second light emitting device.

The size of the B collimation lens may be determined by the first spacing pa between the first light emitting device 1052a and the second light emitting device 1052b. For example, the diameter of the B collimation lens may be equal to the first interval pa. Due to this structure, the volume occupied by the second collimation lens group 912 can be minimized.

The C collimation lens may correspond to the third light emitting device.

The size of the C collimation lens may be determined by the second interval pb between the first light emitting device 1052a and the third light emitting device 1052c. For example, the diameter of the C collimation lens may be equal to the second interval pb. Due to this structure, the volume occupied by the second collimation lens group 912 can be minimized.

Meanwhile, the light output from the first light emitting device 1052a and passing through the first collimation lens and the A collimation lens may have a first optical axis.

The light output from the second light emitting element 1052b and passing through the second collimation lens and the B collimation lens may have a second optical axis.

The light output from the third light emitting device 1052c and passing through the third collimation lens and the C collimation lens may have a third optical axis.

The first optical axis, the second optical axis and the third optical axis may be parallel to each other.

Meanwhile, the FEL (1110 of FIG. 13) includes a first sub FEL (1110 a of FIG. 13) having a first optical pattern, a second sub FEL 1110 b having a second optical pattern, and a third sub having a third optical pattern. FEL (1110c in FIG. 13).

The size of the first optical pattern may be determined by the first spacing pa between the first light emitting device 1052a and the second light emitting device 1052b. For example, the width of the first sub FEL 1110a may be determined by the first interval pa. For example, the width of the cells of the first FEL 1110a may be determined by the first interval pa.

The size of the first optical pattern may be determined by the second gap pb between the first light emitting device 1052a and the third light emitting device 1052c. For example, the width of the first sub FEL 1110a may be determined by the first interval pa. For example, the width of the cells of the first FEL 1110a may be determined by the first interval pa.

The size of the second optical pattern may be determined by the first spacing pa between the first light emitting device 1052a and the second light emitting device 1052b. For example, the width of the second sub FEL 1110b may be determined by the first interval pa. For example, the width of the cells of the second sub FEL 1110b may be determined by the first interval pa.

The size of the third optical pattern may be determined by the second gap pb between the first light emitting device 1052a and the third light emitting device 1052c. For example, the width of the third sub FEL 1110c may be determined by the second interval pb. For example, the width of the cell of the third sub FEL 1110c may be determined by the second interval pb.

19 is a diagram referred to for explaining the pitch, the light emitting area, the total light emitting area, and the effective area.

Referring to FIG. 19, a plurality of light emitting

devices

1052a, 1052b, 1052c, and 1052d may form an array 1053.

In the array 1053, an interval between the horizontal directions of each of the plurality of light emitting

devices

1052a, 1052b, 1052c, and 1052d may be defined as a first pitch p1.

In the array 1053, the interval between the longitudinal directions of each of the plurality of light emitting

devices

1052a, 1052b, 1052c, and 1052d may be defined as a second pitch p2.

The area of light provided to the lens system 900 in each of the plurality of light emitting

devices

1052a, 1052b, 1052c, and 1052d may be determined according to the size of the LED chip 1730. Since the LED chip 1730 is mounted on the circuit board 1054 by direct bonding, the area of light output from the light emitting element is determined according to the size of the LED chip 1730.

The emission area may be defined as the product of the emission width w and the emission height h. Here, the light emission width w may be the width of the LED chip 1730 when the light emitting device is viewed from above. The light emission height h may be the height of the LED chip 1730 when the light emitting device is viewed from above.

The total light emitting area emitted by the plurality of light emitting

devices

1052a, 1052b, 1052c, and 1052d may be defined as a product of the total light emitting width Ws and the total light emitting height Hs.

The image forming panel 1055 may have an effective area 1055a. The effective area 1055a may be defined as the area where light generated in the light emitting element 1052 reaches the image forming panel 1055 via the lens system 900.

The effective area 1055a may be defined as the product of the width Wp of the effective area and the height Hp of the effective area.

The distance between the plurality of light emitting devices may be determined according to the size of the array 1053.

For example, the first pitch p1 may be determined according to the size of the array 1053.

For example, the second pitch p2 may be determined according to the size of the array 1053.

In the state where the number of the plurality of light emitting elements is determined, the interval between the plurality of light emitting elements is determined according to the total light emitting area (Ws * Hs). The total light emitting area Ws * Hs may be determined according to the size of the array 1053. Therefore, the distance between the plurality of light emitting devices may be determined according to the size of the array 1053.

20A to 20C are views referred to for describing an effective angle of a light emitting device according to an embodiment of the present invention.

In the present specification, an effective angle may be defined as an angle of light that reaches the effective area 1055 of the image forming panel among light output from the light emitting device. Light output in a range outside the effective angle is lost.

20A illustrates the effective angle of the light emitting element 1600 of FIG.

Since the effective area of the light emitting device 1600 of FIG. 16 is larger than that of the light emitting device 1052 of FIG. 17, a collimation lens 1910 having the same size as that of the light emitting device 1052 of FIG. 17 is used. , The effective angle 2010 is in the range less than 90 degrees.

20B illustrates the effective angle of the light emitting element 1052 of FIG. 17.

Since the effective area of the light emitting device 1052 of FIG. 17 is smaller than that of the light emitting device 1600 of FIG. 16, a collimation lens 1910 having the same size as that of the light emitting device 1600 of FIG. 16 is used. It may have an effective angle 2030 close to 180 degrees.

Since the head-up display apparatus 1000 is disposed inside the cockpit module of the vehicle 100, the head-up display apparatus 1000 may be miniaturized to increase the degree of freedom in design.

In the case of the light emitting device 1600 of FIG. 16, in order to implement the head-up display apparatus 1000 to have an effective angle of 180 degrees, it is necessary to have a collimation lens and an image forming panel larger than the light emitting device 1052 of FIG. Therefore, it is disadvantageous in miniaturization. In addition, since the effective area 1055a is inevitably large, there is a problem that the brightness (luminance) of the generated image is lowered.

On the other hand, the light emitting device 1052 according to the embodiment of the present invention can have an effective angle of 180 degrees even with a relatively small collimation lens. Therefore, the head-up display device according to the embodiment of the present invention is advantageous in miniaturization. In addition, since the effective area 1055a can be maintained at a constant size, there is an advantage that the brightness (luminance) of the generated image is high.

21 is a view referred to for explaining the relationship between the plurality of light emitting elements 1052 and the image forming panel 1055 according to the embodiment of the present invention.

The size of the image forming panel 1055 may be determined by the effective area 1055a.

The image forming panel 1055 is formed larger than the effective area 1055a by a predetermined size or more.

The size of the image forming panel 1055 may be determined according to the size of the LED chip (1730 of FIG. 17).

The size of the effective area 1055a is determined in accordance with the size of the LED chip (1730 of FIG. 17). The light emitting area of each of the plurality of light emitting elements 1052 is determined according to the size of the LED chip 1730.

The size of the collimation lens 910 is determined by the light emitting area of each of the plurality of light emitting elements 1052. The size of the collimation lens 910 is determined according to the size of the LED chip 1730.

The size of the effective area 1055a formed based on the light passing through the FEL 1100 is determined by the light emitting area of each of the plurality of light emitting devices 1052. The size of the effective area 1055a is determined according to the size of the LED chip 1730.

The size of the image forming panel 1055 may be determined according to the intervals p1 and p2 between the plurality of light emitting devices 1052.

The size of the effective area 1055a is determined in accordance with the intervals p1 and p2 between the plurality of light emitting elements 1052. The size of the array is determined according to the intervals p1 and p2 between the plurality of light emitting elements 1052.

The size of the image forming panel 1055 may be determined according to the size of the array.

The size of the effective area 1055a is determined according to the size of the array.

The present invention described above can be embodied as computer readable codes on a medium in which a program is recorded. The computer-readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include hard disk drives (HDDs), solid state disks (SSDs), silicon disk drives (SDDs), ROMs, RAMs, CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, and the like. This also includes implementations in the form of carrier waves (eg, transmission over the Internet). The computer may also include a processor or a controller. Accordingly, the above detailed description should not be construed as limiting in all aspects and should be considered as illustrative. The scope of the invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the invention are included in the scope of the invention.

Claims

A plurality of light emitting elements;

An image forming panel for forming and outputting an image based on light provided from the plurality of light emitting devices;

A lens system disposed between the plurality of light emitting elements and the image forming panel to transfer light generated by the plurality of light emitting elements to the image forming panel; And

And a processor for controlling the plurality of light emitting elements and the image forming panel.

Each of the plurality of light emitting elements,

A head up display device for a vehicle mounted on a circuit board by direct bonding.
The method of claim 1,

Each of the plurality of light emitting elements,

Vehicle head-up display device including; LED (Light Emitting Diode) chip.
The method of claim 2,

The interval between the plurality of light emitting elements,

Vehicle head-up display device is determined according to the size of the LED chip.
The method of claim 2,

The plurality of light emitting elements form an array,

The interval between the plurality of light emitting elements,

The head up display device for a vehicle determined by the size of the array.
The method of claim 2,

The area of light provided from the plurality of light emitting elements to the lens system is determined according to the LED chip size.
The method of claim 1,

The lens system,

A first collimation lens group including a plurality of collimation lenses disposed corresponding to each of the plurality of light emitting elements; And

And a second collimation lens group including a plurality of collimation lenses disposed corresponding to each of the plurality of light emitting elements.
The method of claim 6,

The plurality of light emitting elements include a first light emitting element,

The first collimation lens group includes a first collimation lens,

The first collimation lens,

A head up display device for a vehicle that covers all of the light output from the first light emitting element.
The method of claim 6,

A plurality of light emitting elements,

A first light emitting device for outputting first light;

A second light emitting device for outputting second light; And

A third light emitting device for outputting third light;

The first light emitting device is disposed between the second light emitting device and the third light emitting device,

The second collimation lens group,

A collimation lens corresponding to the first light emitting device,

The size of the A collimation lens,

And a second gap between the first light emitting element and the second light emitting element or a second distance between the second light emitting element and the third light emitting element.
The method of claim 6,

The plurality of light emitting elements,

A first light emitting device and a second light emitting device,

The first collimation lens group,

A first collimation lens corresponding to the first light emitting element and a second collimation lens corresponding to the second light emitting element,

The second collimation lens group,

A collimation lens corresponding to the first light emitting device and a B collimation lens corresponding to the second light emitting device,

A first optical axis of light output from the first light emitting element and passing through the first collimation lens and the A collimation lens;

And a second optical axis of light output from the second light emitting element and passing through the second collimation lens and the B collimation lens are parallel to each other.
The method of claim 6,

The lens system,

And a fly-eye lens (FEL) in which a plurality of optical patterns are formed corresponding to each of the plurality of light emitting devices.
The method of claim 10,

The FEL,

A vehicle head-up comprising a plurality of cells, wherein at least one of the plurality of light emitting packages enlarges the light provided to at least some of the plurality of cells to a predetermined size, thereby providing uniform light to the image forming panel. Display device.
The method of claim 10,

The plurality of light emitting elements,

A first light emitting device for outputting first light;

A second light emitting device for outputting second light; And

A third light emitting device for outputting third light;

The FEL,

A first sub FEL having a first optical pattern configured to guide the first light uniformly to the image forming panel;

A second sub FEL in which a second optical pattern is formed so as to uniformly provide the second light to the image forming panel; And

A third sub FEL having a third optical pattern configured to guide the third light uniformly to the image forming panel; Vehicle head up display device comprising a.
The method of claim 12,

The first light emitting device is disposed between the second light emitting device and the third light emitting device,

The size of the first optical pattern is

And a second gap between the first light emitting element and the second light emitting element or a second distance between the second light emitting element and the third light emitting element.
The method of claim 12,

And the first sub FEL, the second sub FEL, and the third sub FEL are integrally formed.
The method of claim 10,

The lens system,

A first illumination lens; And

A second illumination lens;

The first illumination lens,

Focus the light dispersed through the FEL to the second illumination lens;

The second illumination lens,

A head up display device for a vehicle focusing light having different incidence angles onto the image forming panel.
The method of claim 15,

The first illumination lens and the second illumination lens, the incident surface and the exit surface of the vehicle head-up display device is formed convex.
The method of claim 15,

The size of the first illumination lens,

The head up display device for a vehicle determined by the number of collimation lenses included in the second collimation lens group.
The method of claim 15,

The second illumination lens,

The head up display device for a vehicle is formed larger than the image forming panel.
The method of claim 2,

The plurality of light emitting elements form an array,

The size of the image forming panel,

And a size of the LED chip, a gap between the plurality of light emitting devices, or a size of the array.
A vehicle comprising the vehicle head up display device according to claim 1.