Headlight device

Abstract

A headlamp device according to one embodiment of the present invention includes a headlamp, an object sensing unit, and a control unit. The headlamp is mounted on a vehicle and includes a light-emitting unit composed of a plurality of light-emitting units that emit light. The object sensing unit senses objects around the vehicle and generates an object sensing signal including object coordinates as the position of the sensed object. The control unit uses information regarding the object coordinates to control the light of the headlamp. At this time, the control unit controls the light-emitting unit in a manner such that at least some of the plurality of light-emitting units are extinguished based on the object sensing signal. In addition, each of the plurality of light-emitting units includes a circuit substrate, a plurality of light-emitting units, a molding component, and a protective component. The plurality of light-emitting units are arranged on the circuit substrate in a spaced-apart manner and include a light-emitting structure and a wavelength conversion component formed on the upper portion of the light-emitting structure. The molding component is formed between the plurality of light-emitting structures. The protective component is formed on the upper portion of the molding component, surrounds the sides of the plurality of wavelength conversion components, and fills the space between the plurality of wavelength conversion components.

Description

Technical Field

[0001] The present invention relates to a headlamp device. Background Art

[0002] Vehicles typically have lights that provide illumination for easier identification of surrounding objects during nighttime driving, as well as signaling functions to inform other vehicles and road users of the vehicle's driving status. For example, headlights and fog lights serve as illumination, while turn signals, taillights, brake lights, and side marker lights serve as signaling.

[0003] When a vehicle driver is driving at night or in a tunnel with low brightness, the driver can recognize the front and rear by using the light emitted from the headlight light source used in the vehicle, thereby enabling safe driving.

[0004] Recently, studies have been underway to adjust the light irradiation direction of a vehicle headlamp device based on vehicle travel information (for example, information such as the vehicle's travel speed or wheel rotation angle) to ensure a driver's field of vision.

[0005] Yet, the light of the headlamp device that is used to ensure the visual field of vehicle driver may shine on the driver of other vehicles or the pedestrian of periphery travel in vehicle.In this case, the light of headlamp device may hinder the driver of other vehicles or the pedestrian's visual field and accident occurs. Summary of the Invention

[0006] Technical issues

[0007] The technical problem to be solved by the present invention is to provide a headlamp device capable of sensing objects located around a vehicle and controlling light directed toward the objects.

[0008] Furthermore, an object of the present invention is to provide a headlamp device that can prevent the vision of other vehicles or people from being obstructed by controlling light directed toward objects located around the vehicle.

[0009] Technical Solutions

[0010] According to an embodiment of the present invention, a headlamp device including a headlamp, an object sensing unit, and a control unit is provided.

[0011] A headlamp is mounted on a vehicle and includes a light-emitting portion comprised of a plurality of light-emitting units that emit light. An object sensing portion senses objects around the vehicle and generates an object detection signal including object coordinates representing the position of the detected object. A control portion uses information regarding the object coordinates to control the headlamp's illumination. In response to the object detection signal, the control portion controls the light-emitting portion so that at least some of the plurality of light-emitting units are extinguished.

[0012] Each of the multiple light-emitting sections includes a circuit substrate, multiple light-emitting units spaced apart from each other on the circuit substrate, a molding component, and a protective component. Each of the multiple light-emitting units includes a light-emitting structure and a wavelength conversion component formed above the light-emitting structure. The molding component is formed between the multiple light-emitting structures. Furthermore, the protective component is formed above the molding component. The protective component surrounds the sides of the multiple wavelength conversion components and fills the spaces between the multiple wavelength conversion components.

[0013] Technical Effects

[0014] The headlamp apparatus according to the embodiment of the present invention can sense objects located around a vehicle and control light toward the objects.

[0015] Therefore, the headlamp device can prevent the vision of other vehicles or people from being obstructed, thereby preventing accidents caused by vehicle lighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a block diagram schematically showing a headlamp device according to an embodiment of the present invention.

[0017] Figure 2 and Figure 3 FIG. 1 is a diagram schematically illustrating an example of a light emitting unit according to an embodiment of the present invention.

[0018] Figures 4 to 7 1 is an exemplary diagram illustrating various operation embodiments of a headlamp according to an embodiment of the present invention.

[0019] Figure 8 FIG. 1 is a block diagram schematically showing a headlamp apparatus according to another embodiment of the present invention.

[0020] Figure 9 FIG. 1 is a diagram schematically illustrating an exemplary light emitting unit according to another embodiment of the present invention.

[0021] Figure 10 and Figure 11 FIG. 1 is an exemplary diagram illustrating an object sensing state of a headlamp apparatus according to another embodiment of the present invention. DETAILED DESCRIPTION

[0022] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided as examples so that the concepts of the present invention can be fully conveyed to those skilled in the art. Therefore, the present invention is not limited to the embodiments described below and may be implemented in other forms. In addition, in the accompanying drawings, for convenience, the width, length, thickness, etc. of the components may be exaggerated. Throughout this specification, the same reference numerals represent the same components, and similar reference numerals represent corresponding similar components.

[0023] A headlamp device according to one embodiment of the present invention includes a headlamp, an object sensing unit, and a control unit. The headlamp is mounted on a vehicle and includes a light-emitting unit composed of a plurality of light-emitting units that emit light. The object sensing unit senses objects around the vehicle and generates an object sensing signal including the object coordinates representing the detected position of the object. The control unit uses information regarding the object coordinates to control the illumination of the headlamp.

[0024] The control unit controls the light emitting unit according to the object sensing signal so that at least part of the plurality of light emitting units is turned off.

[0025] Each of the plurality of light-emitting sections includes a circuit substrate, a plurality of light-emitting units spaced apart from one another on the circuit substrate, a molding component, and a protective component. Each of the plurality of light-emitting units includes a light-emitting structure and a wavelength conversion component formed above the light-emitting structure. The molding component is formed between the plurality of light-emitting structures. Furthermore, a protective component is formed above the molding component. The protective component surrounds the sides of the plurality of wavelength conversion components and fills the spaces between the plurality of wavelength conversion components.

[0026] As an embodiment, the protective component may be a structure having through holes formed at positions corresponding to the plurality of light emitting structures. In this case, the wavelength conversion component fills the through holes of the protective component.

[0027] The wavelength conversion member may include a light-transmitting resin and a wavelength conversion substance dispersed in the light-transmitting resin.

[0028] The light-transmitting resin may be epoxy resin or silicone resin.

[0029] In addition, the wavelength conversion substance may be a phosphor or a quantum dot.

[0030] As another embodiment, the protective component and the wavelength conversion component may be integral. For example, the wavelength conversion component may be each region of the protective component corresponding to the plurality of light-emitting structures. In this case, the phosphor is dispersed in each region of the protective component. The molding component may be black epoxy molding compound (EMC) or black polydimethylsiloxane (PDMS).

[0031] The protection component can be made of glass or ceramic.

[0032] As an embodiment, if the control unit receives the object sensing signal, the control unit may turn off a plurality of light emitting units arranged in an upper area of ​​the light emitting unit.

[0033] As another embodiment, if the control unit receives the object sensing signal, the control unit may at least turn off the light emitting unit corresponding to the object coordinates.

[0034] The light emitting unit may include a first light emitting unit and a second light emitting unit having light directing angles different from each other.

[0035] Each of the plurality of light emitting sections may include all of the first light emitting unit and the second light emitting unit.

[0036] The first light emitting unit may include the light emitting structure, the wavelength conversion component, and a first lens disposed on the wavelength conversion component.

[0037] Furthermore, the second light emitting unit may include the light emitting structure, the wavelength conversion component, and a second lens disposed on the wavelength conversion component.

[0038] At this time, the first lens and the second lens have different light directing angles.

[0039] A light directional angle of the first light emitting unit may be greater than a light directional angle of the second light emitting unit.

[0040] Furthermore, the light irradiation distance of the second light emitting unit may be longer than the light irradiation distance of the first light emitting unit.

[0041] As an embodiment, if the control unit receives the object sensing signal, the control unit may turn off the first light-emitting unit and the second light-emitting unit corresponding to the object coordinates.

[0042] Furthermore, the control unit may turn off a second light emitting unit adjacent to the first light emitting unit and corresponding to the object coordinates.

[0043] As another embodiment, if the control unit receives the object sensing signal, the control unit may turn off the second light emitting unit.

[0044] If the sensed object disappears, the control unit may restore the light emitting unit that is in the extinguished state to a state before the object is sensed.

[0045] Hereinafter, the headlamp device of the present invention will be described in detail with reference to the accompanying drawings.

[0046] Figures 1 to 6 FIG. 1 is an exemplary diagram for explaining a headlamp device according to an embodiment of the present invention.

[0047] Figure 1 1 is a block diagram schematically showing a headlamp device 10 according to an embodiment of the present invention.

[0048] Reference Figure 1 According to an embodiment, the headlamp device 10 includes an object sensing unit 310, a control unit 320, and a headlamp 100. The headlamp 100 may be constructed using at least one light emitting unit 110.

[0049] The object sensing unit 310 senses an object within an illuminated area. Here, the illumination is light emitted from the light emitting unit 110. Furthermore, the illuminated area may be the maximum area that can be illuminated by the headlamp device 10. For example, the illuminated area may be located in front of the vehicle.

[0050] The object sensing unit 310 is a camera that captures images of the front of the vehicle and can obtain images of the illuminated area and the surrounding area of ​​the illuminated area.

[0051] The object sensing unit 310 can use the acquired images to determine whether an object is present within the vehicle's illumination area. If an object is within the vehicle's illumination area, the driver's attention should be drawn to the object. For example, the object requiring the driver's attention may be a person, animal, or vehicle located in front of the vehicle in the direction of travel.

[0052] The object sensing unit 310 may analyze the acquired image to generate an object sensing signal having information on the presence or absence of an object within the illumination area.

[0053] In addition, the object sensing unit 310 may also calculate object coordinates to coordinate the position of an object in the illumination area using the acquired image.

[0054] That is, the object sensing signal may include only information on the presence or absence of an object within the illumination area, or may include both the information on the presence or absence of the object and the object coordinates.

[0055] For example, if the object sensing unit 310 senses an object within the illumination area, the object sensing unit 310 may calculate the object coordinates and transmit an object sensing signal including the object coordinates to the control unit 320 .

[0056] In addition, if the object sensing unit 310 does not sense an object within the illumination area, the object sensing unit 310 may transmit an object sensing signal including information indicating that no object was sensed to the control unit 320 .

[0057] In this embodiment, the object sensing unit 310 is described using a camera that captures images in front of the vehicle as an example. However, the object sensing unit 310 is not limited to a camera. The object sensing unit 310 may be any device capable of sensing an object in front of the vehicle. For example, the object sensing unit 310 may be any device capable of sensing the position, distance, and size of an object, such as a camera, radar, infrared light, or ultrasonic wave.

[0058] The control unit 320 controls the light emitting unit 110 according to the object sensing signal received from the object sensing unit 310 .

[0059] The control unit 320 generates an illumination control signal for controlling illumination of the headlamp 100 based on the received object sensing signal.

[0060] The lighting control signal may include information regarding the light emitting units 120 that are in the extinguished state and the light emitting units 120 that are in the illuminated state among the plurality of light emitting units 120. For example, the lighting control signal may include position information of the light emitting units 120 that should be in the extinguished state and position information of the light emitting units 120 that should be in the illuminated state.

[0061] For example, when the received object sensing signal includes object coordinates, the control unit 320 may turn off the light emitting unit 120 corresponding to the object coordinates and turn on the other light emitting units 120 .

[0062] In addition, when the received object sensing signal does not include information on object coordinates or includes information that no object is sensed within the illumination area, the control portion 320 may control the plurality of light emitting units 120 to maintain a current state or restore to a previous state.

[0063] For example, when all previously received object sensing signals include information indicating that no object is sensed in the lighting area, the control unit 320 may control the light emitting units 120 to maintain the current state of each light emitting unit 120 .

[0064] In addition, when receiving information indicating that no object is sensed within the illumination area after receiving information regarding the object coordinates, the control portion 320 may control each light emitting unit 120 to return to a state before receiving the information regarding the object coordinates.

[0065] For example, in the headlamp device 10, all the light emitting units 120 may be in a light emitting state. Then, if an object is detected in the illumination area, the headlamp device 10 may turn off the light emitting units 120 that are illuminating the area where the object is located.

[0066] Afterwards, if the object in the illumination area disappears, the headlamp device 10 may restore all the light emitting units 120 to the state before sensing the object. In other words, the headlamp device 10 may restore all the light emitting units 120 to the light emitting state.

[0067] The light emitting portion 110 includes a plurality of light emitting units 120 .

[0068] The lighting operation of the plurality of lighting units 120 can be implemented individually. That is, each lighting unit 120 is in a lighted state or a darkened state according to the lighting control signal of the control unit 320.

[0069] According to the lighting control signal, the light emitting unit 120 at the position corresponding to the object coordinates among the plurality of light emitting units 120 may be turned off. In addition, according to the lighting control signal, the light emitting units 120 other than the light emitting unit 120 corresponding to the object coordinates among the plurality of light emitting units 120 may be turned on or maintain the current state.

[0070] Figure 2 and Figure 3 FIG. 1 is a diagram schematically illustrating an example of the light emitting unit 110 according to an embodiment of the present invention.

[0071] Reference Figure 2 and Figure 3 The light emitting unit 110 includes a circuit substrate 130 , a plurality of light emitting structures 121 , a molding component 140 , a wavelength conversion component 122 and a protective component 150 .

[0072] A plurality of light emitting structures 121 are arranged on the circuit substrate 130. In this embodiment, the light emitting unit 120 is composed of the light emitting structure 121 and the wavelength conversion member 122 arranged on the upper portion of the light emitting structure 121.

[0073] For example, the light emitting structure 121 may be a light emitting diode including a growth substrate and a semiconductor layer formed on the growth substrate. For example, the growth substrate may be a sapphire substrate. Furthermore, the semiconductor layer may include a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer formed between the first conductive type semiconductor layer and the second conductive type semiconductor layer.

[0074] In addition, the light emitting structure 121 may further include electrodes electrically connected to the first conductive type semiconductor layer and the second conductive type semiconductor layer.

[0075] The plurality of light-emitting structures 121 are arranged spaced apart from one another. For example, the distance between adjacent light-emitting structures 121 may be 20 μm to 50 μm. If the distance between the light-emitting structures 121 is less than 20 μm, the light-emitting areas of adjacent light-emitting structures 121 may overlap. In this case, light from the light-emitting structures 121 in the illuminated state may intrude into the unlit area.

[0076] In addition, when the distance between the light emitting structures 121 is greater than 50 μm, the molding member 140 between the light emitting structures 121 may be recognized by the naked eye.

[0077] As another embodiment, the light emitting structure 121 may be formed by removing the semiconductor layer from the growth substrate. In this case, the plurality of light emitting structures 121 may have a structure in which they share a first conductive type semiconductor layer and are separated from each other by a plurality of steps formed by the active layer and the second conductive type semiconductor layer.

[0078] At this time, the light emitting structure may include a common electrode electrically connected to the first conductive type semiconductor layer and a plurality of individual electrodes formed at each step and electrically connected to the second conductive type semiconductor layer.

[0079] As another embodiment, multiple light-emitting structures 121 can also be implemented by sharing a single growth substrate. For example, multiple semiconductor layers can be formed on a single growth substrate. In this case, the regions where the semiconductor layers are formed or where the growth substrate includes the semiconductor layers can become the light-emitting structures 121.

[0080] The circuit substrate 130 may be a substrate on which wiring connected to the light emitting structures 121 is formed. The wiring may be formed so as to be able to drive the plurality of light emitting structures 121 individually.

[0081] That is, the wiring of the circuit substrate 130 can be electrically connected to the electrodes formed on the plurality of light emitting structures 121 to drive the plurality of light emitting structures 121 individually.

[0082] Therefore, the plurality of light emitting structures 121 may be individually driven by external signals received by the circuit substrate 130 .

[0083] The molding member 140 fills the spaces between the plurality of light emitting structures 121. To prevent or minimize light interference between adjacent light emitting structures 121, the molding member 140 may be formed as a black molding member. For example, the black molding member may be a black epoxy molding compound (EMC) or a black polydimethylsiloxane (PDMS).

[0084] The molding member 140 as described above may limit the area irradiated by light from each of the light emitting structures 121 to a specific range.

[0085] Therefore, the headlamp device 10 can control the lighting operation and non-lighting operation of each light emitting structure 121 so that light is irradiated or not irradiated to a specific area. In other words, the headlamp device 10 can finely control the light irradiation area.

[0086] According to this embodiment, the wavelength conversion member 122 is located above each of the light emitting structures 121, and the protective member 150 is formed to surround the sides of each wavelength conversion member 122. In other words, the protective member 150 fills the space between the wavelength conversion members 122. Therefore, the wavelength conversion material can cover the upper portion of the light emitting structure 121, and the protective member 150 can be formed to cover the upper portion of the molding member 140.

[0087] The wavelength converter 122 can convert the wavelength of a portion of the light emitted from the light emitting structure 121. The light emitting portion 110 emits light of a predetermined color by mixing the light emitted from the light emitting structure 121 with the light converted by the wavelength converter.

[0088] The wavelength conversion component 122 can be made of a light-transmitting resin and a wavelength conversion substance dispersed in the light-transmitting resin. For example, the light-transmitting resin can be epoxy resin or silicone resin. In addition, the wavelength conversion substance can be a phosphor or quantum dots (QD).

[0089] Furthermore, the wavelength conversion member 122 may be formed of glass in which a wavelength conversion substance is dispersed. For example, the wavelength conversion member 122 may be made of phosphor in glass (PIG) ​​material.

[0090] The protective member 150 prevents foreign substances such as moisture, gas, and dust from penetrating into the light emitting structure 121 or the wavelength conversion member 122. The protective member 150 prevents the light emitting structure 121 and the wavelength conversion member 122 from deteriorating, thereby preventing a decrease in luminous efficiency caused by degradation.

[0091] For example, the protective member 150 may be made of glass.

[0092] As an embodiment, the protection member 150 may have a through hole formed at a position corresponding to the light emitting structure 121. The wavelength conversion member 122 may be formed to fill the through hole formed in the protection member 150.

[0093] For example, first, through holes can be formed in the protective member 150 made of glass using a laser or the like. The through holes are formed at positions corresponding to the light emitting structures 121. Thereafter, the wavelength conversion member 122 can be inserted into the through holes of the protective member 150.

[0094] Reference Figure 2 and Figure 3 The area of ​​the through hole of the protection member 150 is the same as the area of ​​the light emitting structure 121 . That is, the area of ​​the lower surface of the wavelength conversion member 122 is the same as the area of ​​the upper surface of the light emitting structure 121 .

[0095] However, this embodiment is not limited to the structure in which the area of ​​the wavelength conversion member 122 is the same as the area of ​​the upper surface of the light emitting structure 121 .

[0096] For example, the area of ​​the through-hole of the protective member 150 can be larger or smaller than the area of ​​the upper surface of the light-emitting structure 121. Accordingly, the area of ​​the lower surface of the wavelength conversion member 122 can also be larger or smaller than the area of ​​the upper surface of the light-emitting structure 121. When the area of ​​the lower surface of the wavelength conversion member 122 is smaller than the area of ​​the upper surface of the light-emitting structure 121, light concentration can be improved.

[0097] In addition, in this embodiment, although the wavelength conversion member 122 and the protection member 150 are made of different materials and are described as separate components, the present invention is not limited thereto.

[0098] The protective component 150 and the wavelength conversion component 122 can be integrally formed from the same material. For example, the protective component 150 can be a ceramic sheet. Because the phosphor is distributed in the area located above the light-emitting structure 121, the protective component 150 can disperse light passing through the phosphor-distributed area. In this case, the protective component 150 can protect the light-emitting structure 121 while also functioning as the wavelength conversion component 122 through the phosphor-distributed area. Specifically, the phosphor-distributed area of ​​the protective component 150 located above the light-emitting structure 121 can serve as the wavelength conversion component 122.

[0099] If a person or another vehicle is detected in front of the vehicle, the headlamp device 10 of this embodiment prevents light from being emitted toward the detected object. Specifically, the headlamp device 10 selects a light-emitting unit 120 and its adjacent light-emitting units 120 from among the plurality of light-emitting units 120 to emit light toward the detected object and disables the light-emitting unit 120.

[0100] In this embodiment, the headlamp device 10 can be controlled to turn off only the light emitting unit 120 corresponding to the object coordinates. However, the light of the light emitting unit 120 adjacent to the light emitting unit 120 corresponding to the object coordinates may also obstruct the vision of other vehicles and people.

[0101] Therefore, the headlamp device 10 can turn off not only the light emitting unit 120 corresponding to the object coordinates but also the surrounding light emitting units 120 so as not to emit light.

[0102] Alternatively, the headlamp device 10 reduces the light amount of the selected light emitting unit 120 .

[0103] Therefore, the headlamp device 10 of the present invention can prevent the person or other vehicles in front of the vehicle from being glared or having their vision obstructed by the glare caused by the lighting of the vehicle. Furthermore, the headlamp device 10 can prevent the person or other vehicles in front of the vehicle from being accidentally obstructed by the lighting.

[0104] Figures 4 to 7 1 is an exemplary diagram illustrating various operational embodiments of the headlamp 100 according to an embodiment.

[0105] Figures 4 to 6 The headlamp 100 of a vehicle is schematically shown. For example, the headlamp 100 includes a first headlamp 101 and a second headlamp 102. The first headlamp 101 is a headlamp located on the right side of the vehicle, and the second headlamp 102 is a headlamp located on the left side of the vehicle.

[0106] The first headlamp 101 and the second headlamp 102 can be configured using a plurality of light-emitting units 110. For example, the plurality of light-emitting units 110 of the first headlamp 101 include a 1-1 light-emitting unit 111, a 1-2 light-emitting unit 112, and a 1-3 light-emitting unit 113. Furthermore, the plurality of light-emitting units 110 of the second headlamp 102 include a 2-1 light-emitting unit 115, a 2-2 light-emitting unit 116, and a 2-3 light-emitting unit 117.

[0107] In this embodiment, although the first headlamp 101 and the second headlamp 102 are described as including a plurality of light emitting portions 110 , they may also be configured using a single light emitting portion 110 including a plurality of light emitting units 120 .

[0108] Figure 41 is an exemplary diagram showing the headlamp 100 in a high-beam state.

[0109] In this embodiment, if the control unit 320 receives the high beam signal, the control unit 320 can control each light emitting unit 110 to put the headlamp 100 in the high beam state. Figure 4 As shown, an illumination control signal is generated such that the light emitting units 120 located in the upper region of each light emitting portion 110 are turned on and the light emitting units 120 located in the lower region of each light emitting portion 110 are turned off.

[0110] Here, the upper region of the light emitting portion 110 is a region located above the center or central axis of the light emitting portion 110 .

[0111] Therefore, the plurality of light emitting units 120 of each light emitting portion 110 can be controlled as follows according to the lighting control signal. Figure 4 The indicated ground is lit or extinguished.

[0112] Alternatively, if the control unit 320 receives a high beam signal, the control unit 320 may generate a lighting control signal to light up all the light emitting units 120 of each light emitting unit 110 .

[0113] When the headlight 100 is in a high-beam state, the light-emitting unit 120 disposed at a higher position emits light, thereby achieving long-distance lighting.

[0114] When no object is sensed in front of the vehicle, the headlamp device 10 may place the headlamp 100 in the high beam state described above.

[0115] Figure 5 1 is an exemplary diagram showing the headlamp device 10 in a low-beam state.

[0116] In this embodiment, if the control unit 320 receives the low beam signal, the control unit 320 can control each light emitting unit 110 to put the headlamp 100 in the low beam state. Figure 5 As shown, a lighting control signal is generated so that the light emitting units 120 located in the upper region of each light emitting portion 110 are turned off and the light emitting units 120 located in the lower region of each light emitting portion 110 are turned on.

[0117] Here, the lower region of the light emitting portion 110 is a region located below the center or central axis of the light emitting portion 110 .

[0118] The plurality of light emitting units 120 of each light emitting portion 110 can be controlled as follows according to the lighting control signal. Figure 5 The indicated ones are lit or extinguished.

[0119] When the headlamp 100 is in the low beam state, the light emitting unit 120 arranged at a lower position emits light, thereby illuminating a short distance close to below.

[0120] Although the high beam can illuminate a long distance, it may obstruct the vision of oncoming vehicles, vehicles in front, and people in front.

[0121] Therefore, when the presence of another vehicle, a person, or other object is detected in front of the vehicle, the headlamp device 10 can place the headlamp 100 in the low beam state.

[0122] The high beam signal and the low beam signal received by the control unit 320 may be generated by an operation lever operated by the driver.

[0123] In addition, the control unit 320 may generate the lighting control signal not only based on the signal from the operating lever but also by combining the signal from the operating lever and the object sensing signal from the object sensing unit 310 to generate the lighting control signal.

[0124] For example, the control unit 320 can control the headlamp 100 to the high beam state based on the signal from the operating lever. Thereafter, if the control unit 320 receives object coordinate information from the object sensing unit 310, the control unit 320 can generate a lighting control signal to switch the headlamp 100 to the low beam state. Thereafter, if the control unit 320 receives information indicating that no object is detected within the illumination area, the control unit 320 can generate a lighting control signal to switch the headlamp 100 back to the high beam state.

[0125] Figure 6 is an exemplary diagram showing the headlamp 100 in an object sensing state.

[0126] When an object is sensed within the lighting area, the headlamp device 10 may control the headlamp 100 not to illuminate the area where the object is located.

[0127] For example, the object sensing unit 310 may sense another vehicle approaching the vehicle from the left lane of the vehicle.

[0128] The object sensing unit 310 may transmit an object sensing signal having coordinate information of an object of another vehicle to the control unit 320 .

[0129] The control unit 320 may generate a lighting control signal based on the received information on the object coordinates so that the light emitting unit 120 emitting light toward the area where another vehicle is located is in a lit state.

[0130] For example, based on the information regarding the object coordinates, the control unit 320 may determine that the light-emitting units 120 of the 2nd-3rd light-emitting unit 117 and the light-emitting units 120 in a column corresponding to the 2nd-2nd light-emitting unit 116 are to be irradiated toward the area where the other vehicle is located. Here, the column of the 2nd-2nd light-emitting unit 116 may be a column consisting of the light-emitting units 120 adjacent to the 2nd-3rd light-emitting unit 117.

[0131] The control unit 320 may generate a lighting control signal to make a part of the light emitting units 120 of the 2-2 light emitting unit 116 and all the light emitting units 120 of the 2-3 light emitting unit 117 on the left side of the second headlamp 102 illuminate as follows: Figure 6 As shown, it is in an extinguished state.

[0132] The headlamp device 10 can be operated as described above. Figure 7 As shown, the front lighting of the vehicle automatically prevents the danger of interfering with the vision of other drivers of vehicles in other lanes.

[0133] The following descriptions of other embodiments will focus on the differences from the previous embodiments. That is, when describing various embodiments, the descriptions of components that are identical to those in the previous embodiments will be omitted or simplified. Therefore, please refer to the descriptions of the previous embodiments for detailed descriptions of the corresponding components.

[0134] Figures 8 to 11 FIG. 1 is an exemplary diagram for explaining a headlamp device according to another embodiment of the present invention.

[0135] Figure 8 is a block diagram schematically showing a headlamp device 20 according to another embodiment.

[0136] Reference Figure 8 The headlamp device 20 includes a headlamp 200 , an object sensing unit 310 and a control unit 320 .

[0137] The headlamp 200 includes a plurality of light emitting portions 210 .

[0138] Each of the plurality of light emitting sections 210 includes a plurality of light emitting units that are driven individually.

[0139] In this embodiment, the plurality of light emitting units 210 includes a plurality of first light emitting units 221 and a plurality of second light emitting units 222 .

[0140] The first light emitting unit 221 and the second light emitting unit 222 have different directivity angles of light and different irradiation distances of light.

[0141] Figure 9 FIG. 1 is a diagram schematically illustrating an exemplary light emitting unit according to another embodiment of the present invention.

[0142] Reference Figure 9 The light emitting unit 210 includes a circuit substrate 130 , a plurality of light emitting structures 121 , a molding component 140 , a wavelength conversion component 122 , a protective component 150 , a first lens 123 , and a second lens 125 .

[0143] The first lens 123 or the second lens 125 is disposed on the upper portion of the plurality of light emitting structures 121 .

[0144] In this embodiment, the first light-emitting unit 221 is composed of a light-emitting structure 121, a wavelength conversion component 122 disposed above the light-emitting structure 121, and a first lens 123 located above the light-emitting structure 121. Furthermore, the second light-emitting unit 222 is composed of another light-emitting structure 121, a wavelength conversion component 122 disposed above the light-emitting structure 121, and a second lens 125 located above the light-emitting structure 121.

[0145] The first lens 123 and the second lens 125 enable the first light emitting unit 221 and the second light emitting unit 222 to have different light directing angles and light irradiation distances.

[0146] For example, the first light emitting unit 221 including the first lens 123 may have a larger light directivity angle than the second light emitting unit 222 including the second lens 125 .

[0147] In addition, although the light directivity angle of the second light emitting unit 222 is smaller than that of the first light emitting unit 221 , the light irradiation distance of the second light emitting unit 222 may be greater than that of the first light emitting unit 221 .

[0148] In addition, the first lens 123 and the second lens 125 may have different structures such as different curvatures. For example, the first lens 123 may have a larger curvature than the second lens 125.

[0149] Figure 10 and Figure 11 is an exemplary diagram showing the headlamp 200 in an object sensing state.

[0150] When an object is sensed within the lighting area, the headlamp device 20 may control the headlamp 200 not to illuminate the area where the object is located.

[0151] Reference Figure 10The headlamp 200 may include a first headlamp 201 located on the right side of the vehicle and a second headlamp 202 located on the left side of the vehicle. For example, the first headlamp 201 may be configured using a 1-1 light emitting unit 211, a 1-2 light emitting unit 212, and a 1-3 light emitting unit 213, each including a plurality of first light emitting units 221 and a plurality of second light emitting units 222. Furthermore, the second headlamp 202 may be configured using a 2-2 light emitting unit 215, a 2-2 light emitting unit 216, and a 2-3 light emitting unit 217, each including a plurality of first light emitting units 221 and a plurality of second light emitting units 222.

[0152] For example, Figure 11 As shown, another vehicle may be approaching the vehicle from the left lane of the vehicle.

[0153] The object sensing unit 310 may sense another vehicle approaching the vehicle and transmit an object sensing signal to the control unit 320 .

[0154] The control unit 320 may control the light emitting unit 210 based on the received information on the object coordinates.

[0155] The control unit 320 may control all first light-emitting units 221 and second light-emitting units 222 that illuminate the area where other vehicles are located to be turned off. For example, the first light-emitting units 221 and second light-emitting units 222 located in the second to fourth columns of the second-third light-emitting unit 217 may be the light-emitting units that illuminate other vehicles.

[0156] Therefore, the control unit 320 may turn off all the first light emitting units 221 and the second light emitting units 222 arranged in the second to fourth columns of the 2nd-3rd light emitting unit 217 of the second headlamp 102 .

[0157] Furthermore, the control unit 320 can also control the extinguishing of any second light-emitting units 222 located near the first light-emitting units 221 and second light-emitting units 222 that have been extinguished by the object sensing signal. For example, the control unit 320 can extinguish the second light-emitting units 222 located in two rows adjacent to the light-emitting units extinguished by the object sensing signal. Thus, around the first light-emitting units 221 and second light-emitting units 222 that have been extinguished by the object sensing signal, only the first light-emitting units 221 whose light irradiation distance is shorter than that of the second light-emitting units 222 remain illuminated.

[0158] Reference Figure 10 , the second light emitting units 222 of the fourth column of the 2-2 light emitting unit 216 and the first column of the 2-3 light emitting unit 217 are turned off, and the first light emitting units 221 are in the lit state.

[0159] Therefore, if another vehicle is sensed, the headlamp device 20 may Figure 11 Control lighting as shown.

[0160] Reference Figure 11 , the headlamp device 20 can illuminate the front of the vehicle without illuminating other vehicles.

[0161] That is, the headlamp device 20 of this embodiment can illuminate the front area to the greatest extent without interfering with the vision of other vehicles or people, thereby ensuring the vision of the vehicle driver.

[0162] Furthermore, if the object sensing unit detects an object, the control unit 320 can turn off all second light-emitting units 222 and illuminate only the first light-emitting units 221 or maintain their previous state. Therefore, if an object is in front of the vehicle, the headlamp apparatus 20 illuminates only the first light-emitting units 221, which have a shorter illumination distance, thereby preventing the vehicle's lighting from obstructing the view of the object.

[0163] As described above, although the specific description of the present invention is completed by referring to the embodiments of the accompanying drawings, the above embodiments are only examples of preferred examples of the present invention, and it should not be understood that the present invention is limited to the above embodiments. The scope of rights of the present invention should be understood as the claims and their equivalent concepts.

Claims

1. A headlamp device comprising: A headlamp, mounted on a vehicle, comprising a plurality of light-emitting portions formed by a plurality of light-emitting units for emitting light; an object sensing unit that senses an object around the vehicle and generates an object sensing signal including object coordinates as the sensed position of the object; and a control unit that controls the light of the headlamp using information on the coordinates of the object, The control unit controls the plurality of light emitting units in a manner such that at least a portion of the plurality of light emitting units is turned off according to the object sensing signal. The light emitting unit includes a first light emitting unit and a second light emitting unit having different light directing angles, wherein the light directing angle of the first light emitting unit is greater than the light directing angle of the second light emitting unit. Each of the plurality of light emitting units includes all of the first light emitting unit and the second light emitting unit. If the control unit receives the object sensing signal, the control unit turns off the first light-emitting unit and the second light-emitting unit included in the light-emitting unit corresponding to the object coordinates, turns off the second light-emitting unit adjacent to the light-emitting unit corresponding to the object coordinates, and lights up the first light-emitting unit adjacent to the light-emitting unit corresponding to the object coordinates.

2. The headlamp device according to claim 1, wherein Each of the plurality of light emitting sections comprises: Circuit board; The plurality of light emitting units are arranged on the circuit substrate and spaced apart from each other, and each of the plurality of light emitting units includes a light emitting structure and a wavelength conversion component formed on an upper portion of the light emitting structure; a molding component formed between the plurality of light emitting structures; and The protection component is formed on the upper portion of the molding component, surrounds the side surfaces of the plurality of wavelength conversion components, and fills the spaces between the plurality of wavelength conversion components.

3. The headlamp device according to claim 2, wherein: The protection member is structured such that through holes are formed at positions corresponding to the plurality of light emitting structures. The wavelength conversion member fills the through hole of the protective member.

4. The headlamp device according to claim 3, wherein: The wavelength conversion member includes a light-transmitting resin and a wavelength conversion substance dispersed in the light-transmitting resin.

5. The headlamp device according to claim 4, wherein: The light-transmitting resin is epoxy resin or silicone resin, The wavelength conversion material is a phosphor or a quantum dot.

6. The headlamp device according to claim 2, wherein: The protective component and the wavelength conversion component are integrated. The wavelength conversion member is a region of the protective member corresponding to each of the plurality of light emitting structures. Phosphors are dispersed in the respective regions of the protective member.

7. The headlamp device according to claim 2, wherein: The molded component is black epoxy resin molding compound or black polydimethylsiloxane.

8. The headlamp device according to claim 2, wherein: The protection component is made of glass or ceramic material.

9. The headlamp device according to claim 1, wherein If the control unit receives the object sensing signal, the control unit turns off the plurality of light emitting units arranged in the upper region of the light emitting unit.

10. The headlamp device according to claim 2, wherein The first light emitting unit includes the light emitting structure, the wavelength conversion component, and a first lens arranged on the wavelength conversion component. The second light emitting unit includes the light emitting structure, the wavelength conversion component, and a second lens arranged on the wavelength conversion component. A light directing angle of the first lens is greater than a light directing angle of the second lens.

11. The headlamp device according to claim 1, wherein The light irradiation distance of the second light emitting unit is greater than the light irradiation distance of the first light emitting unit.

12. The headlamp device according to claim 1, wherein If the sensed object disappears, the control unit restores the light emitting unit, which is in a turned-off state, to a state before the object is sensed.

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