Head-up Display Apparatus

Abstract

The present disclosure relates to a head-up display device. According to one embodiment of the present disclosure, the head-up display device comprising an image forming device comprises: an upper housing; a lower housing having a receiving space inside and in which the image forming device is disposed; one or more mirrors disposed inside the lower housing and formed to reflect an image emitted from the image forming device; an image forming device; and one or more length adjustment members coupled to the lower housing to support the image forming device so as to be movable, wherein each of the one or more length adjustment members has one end formed to protrude toward the outside of the lower housing. A vehicle control device according to one embodiment of the present disclosure provides the effect of correcting image distortion without using separate correction equipment and software.

Description

Technology Field

[0001] The present disclosure relates to a head-up display device. More specifically, it relates to a head-up display device capable of correcting an image using an image forming device. Background Technology

[0002] The content described in this section merely provides background information regarding the present disclosure and does not constitute prior art.

[0003] A vehicle Head-Up Display (HUD) is a device that displays images containing vehicle speed, fuel level, and navigation information on the windshield. Generally, a HUD is configured to display information projected from a Picture Generating Unit (PGU) on the windshield by reflecting it through an aspherical mirror.

[0004] The head-up display device may include a housing with an internal accommodation space, an image forming device, an aspherical mirror, and a cover. The image forming device may include a heat sink, a light source, a funnel, and a Liquid Crystal Display (LCD). When the light source emits light, the funnel is formed to concentrate the light toward the LCD. The heat sink is formed to dissipate heat emitted from the light source and to regulate the temperature. Due to its characteristics, the head-up display device is installed under the vehicle's windshield.

[0005] The image displayed on the vehicle's windshield is implemented using components such as a light source, LCD, and aspherical mirror. Due to tolerances in each component, the image may be distorted or displayed at a location outside the driver's field of vision.

[0006] Conventionally, to prevent the image of a head-up display from being distorted or displayed outside the driver's field of vision, tolerances were minimized during the manufacturing stage of each component. After the manufacturing stage, separate calibration equipment and software were used to correct distorted images or change their position.

[0007] Minimizing part tolerances presents the inconvenience of requiring strict tolerance control during the manufacturing stage. Furthermore, in the post-manufacturing phase, there is a problem in that service centers for the maintenance and repair of the head-up display cannot correct distorted images or change their position.

[0008] The method of correcting images using correction equipment and software has the problem that the correction equipment is relatively expensive and requires additional personnel training regarding its use.

[0009] To overcome these problems, an example of a head-up display device is disclosed in Korean Published Patent Application No. 2023-0035877. The disclosed head-up display device includes one or more length adjustment members to allow the housing to move. The length adjustment member includes an aiming bolt, and the aiming bolt can be rotated using a tool such as a screwdriver. When the aiming bolt is rotated, the length adjustment member moves the housing. As the housing moves, it corrects a distorted image or changes the position of the image. The disclosed head-up display eliminates the inconvenience of strict tolerance management and allows for the correction of distorted images or the change of image position even at service centers without using separate correction equipment and software.

[0010] However, the disclosed head-up display has the disadvantage that while distorted images can be corrected by moving the housing, they cannot be corrected by directly moving the image forming device. Strict tolerance control of the image forming device is still required during the manufacturing process. Furthermore, since the image forming device is positioned inside the housing, there is the inconvenience of having to disassemble the housing if the device needs to be moved directly. Prior art literature

[0011] Republic of Korea Published Patent Application No. 2023-0035877 The problem to be solved

[0012] The purpose of the present disclosure is to provide a head-up display device according to one embodiment that includes one or more length adjustment parts to allow the image forming device to move, thereby eliminating the inconvenience of having to strictly manage the tolerance of the image forming device.

[0013] The purpose of the present disclosure is to provide a head-up display device according to one embodiment that includes one or more length adjustment parts to allow the image forming device to move, thereby enabling the correction of image distortion without using additional calibration equipment and software.

[0014] The purpose of the present disclosure is to provide a head-up display device in which the length adjustment portion of the head-up display device according to one embodiment of the present disclosure has one end formed to protrude toward the outside of the housing, thereby enabling the image forming device to be moved without disassembling the housing.

[0015] The problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned problems will be clearly understood by a person skilled in the art from the description below. means of solving the problem

[0016] According to one embodiment of the present disclosure, a head-up display device comprising an image forming device comprises: an upper housing; a lower housing having a receiving space inside and in which an image forming device is disposed; one or more mirrors disposed inside the lower housing and formed to reflect an image emitted from the image forming device; an image forming device; and one or more length adjustment members coupled to the lower housing to support the image forming device so as to be movable, wherein each of the one or more length adjustment members has one end formed to protrude toward the outside of the lower housing. Effects of the invention

[0017] According to one embodiment of the present disclosure, the head-up display device includes one or more length adjustment parts to allow the image forming device to move, thereby providing the effect of eliminating the inconvenience of having to strictly manage the tolerance of the image forming device.

[0018] According to one embodiment of the present disclosure, a head-up display device includes one or more length adjustment parts to allow an image forming device to move, thereby providing the effect of correcting image distortion without using separate correction equipment and software.

[0019] According to one embodiment of the present disclosure, one or more length adjustment members each have one end formed to protrude toward the outside of the housing, thereby providing the effect of being able to move the image forming device without disassembling the housing. Brief explanation of the drawing

[0020] FIG. 1 is a perspective view of a head-up display device according to one embodiment of the present disclosure. Figure 2 is a cross-sectional view according to the AA' cross-section of Figure 1. FIG. 3 is a perspective view of a head-up display device according to another embodiment of the present disclosure. Figure 4 is a cross-sectional view according to the BB' cross-section of Figure 3. FIG. 5 is a drawing showing a first operating state of a head-up display device according to one embodiment of the present disclosure. FIG. 6 is a drawing showing a second operating state of a head-up display device according to one embodiment of the present disclosure. FIG. 7 is a drawing showing a third operating state of a head-up display device according to one embodiment of the present disclosure. FIG. 8 is a drawing showing a fourth operating state of a head-up display device according to one embodiment of the present disclosure. FIG. 9 is a drawing showing a fifth operating state of a head-up display device according to one embodiment of the present disclosure. FIG. 10 is a drawing showing a sixth operating state of a head-up display device according to one embodiment of the present disclosure. FIG. 11 is a drawing showing a seventh operating state of a head-up display device according to one embodiment of the present disclosure. Specific details for implementing the invention

[0021] Some embodiments of the present disclosure are described in detail below with reference to the exemplary drawings. It should be noted that in assigning reference numerals to the components of each drawing, the same components are given the same reference numeral whenever possible, even if they are shown in different drawings. Furthermore, in describing the present disclosure, if it is determined that a detailed description of related known components or functions could obscure the essence of the present disclosure, such detailed description is omitted.

[0022] In describing the components of the embodiments according to the present disclosure, symbols such as first, second, i), ii), a), b), etc., may be used. These symbols are intended only to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the symbols. When a part in the specification is described as 'comprising' or 'having' a component, this means that, unless explicitly stated otherwise, it does not exclude other components but may include additional components.

[0023] In describing the components of the present invention, terms such as first, second, A, B, (a), (b), etc., may be used. These terms are intended merely to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by such terms.

[0024] Where it is stated that one component is 'connected', 'combined', or 'joined' to another component, it should be understood that while the component may be directly connected or joined to the other component, another component may also be 'connected', 'combined', or 'joined' between each component.

[0025] Unless otherwise stated, it should be noted that the description of any one embodiment may also apply to other embodiments.

[0026] The description of the invention disclosed below, together with the accompanying drawings, is intended to describe exemplary embodiments of the invention and is not intended to represent the only embodiment in which the invention may be practiced.

[0027] FIG. 1 is a perspective view of a head-up display device according to one embodiment of the present disclosure.

[0028] Figure 2 is a cross-sectional view according to the AA' cross-section of Figure 1.

[0029] Referring to FIGS. 1 and 2, a head-up display device (10) according to one embodiment of the present disclosure may include a length adjustment unit (100), an image forming device (200), a housing (not shown), a first mirror (410), and a screen (not shown).

[0030] The length adjustment part (100) includes an aiming bolt (110), a moving part (120), and a joint (130). The aiming bolt (110) includes a head part (111), a body part (112), and a bolt part (113), and the moving part (120) includes a first groove (121), a connecting part (122), and an insertion part (123). The joint (130) includes a second groove (131) and a fastening part (132).

[0031] The image forming device (200) may include a heat sink (210), a printed circuit board (PCB, 220), a funnel (230), a frame (240), and an LCD (250).

[0032] The housing (310, 320) may include an upper housing (310) and a lower housing (320), and may further include one or more fixing parts (330) in at least a part of the lower housing (320). The fixing part (330) may include a first nut part (331), a support part (332), and a second nut part (333).

[0033] The upper housing (310) may include a penetration (not shown) formed to allow light to pass through at least a part of the upper housing (310) and a dust cover (not shown) that prevents dust or foreign matter from entering toward the interior of the head-up display device (10). An image related to vehicle operation information is generated from an image forming device and reflected by the first mirror (410), and the reflected image passes through the penetration and the dust cover and is displayed on the windshield of the vehicle.

[0034] According to one embodiment of the present disclosure, a housing has a receiving space formed therein, into which an image forming device (200), a first mirror (410), and a screen are arranged. When the housing includes an upper housing (310) and a lower housing (320), the image forming device (200), the first mirror (410), and the screen are arranged inside the lower housing (320).

[0035] According to one embodiment of the present disclosure, the length adjustment unit (100) is coupled with the lower housing (320) and the image forming device (200) to support the image forming device (200) so that it can be moved. The image forming device (200) can be moved according to the change in length of the length adjustment unit (100). The housing includes one or more fixed parts (330), and the fixed parts (330) are coupled to one surface of the lower housing (320). When the housing includes one or more fixed parts (330), the head-up display device (10) may include a number of length adjustment units (100) equal to the number of fixed parts (330). Each length adjustment unit (100) can be coupled to the fixed parts (330). Each end of the length adjustment unit (100) is formed to protrude toward the outside of the lower housing (320).

[0036] The lower housing (320) may include a heat dissipation opening (not shown) in at least a portion. The heat dissipation opening is formed so that at least a portion of the image forming device (200) can be exposed. The heat dissipation opening can dissipate heat generated from the image forming device (200) to the outside of the head-up display device (10). When the lower housing (320) includes a heat dissipation opening, a fixing part (330) is attached to one side of the lower housing (320) adjacent to the heat dissipation opening, and each fixing part (330) is formed to protrude toward the heat dissipation opening. The heat dissipation opening does not necessarily have to be formed in the lower housing (320), but may be formed in the upper housing (310) depending on the purpose and use.

[0037] According to one embodiment of the present disclosure, the image forming device (200) can be moved at various angles using each length adjustment unit (100). If the head-up display device (10) emits a distorted image, the image forming device (200) can be moved to correct it. When the image forming device (200) is moved, the position where the image emitted from the head-up display device (10) is projected onto the windshield can be changed.

[0038] The fixing part (330) supports the image forming device (200) so that it can be moved at least one point using the length adjustment part (100), and the fixing part (330) may include a first nut part (331), a support part (332), and a second nut part (333). The fixing part (330) does not necessarily have to be formed in the lower housing (320), but may be formed in the upper housing (310) depending on the purpose and use.

[0039] According to one embodiment of the present disclosure, a fixed portion (330) is formed to surround a heat dissipation hole, and each fixed portion (330) is coupled to a length adjustment portion (100). At least a portion of the length adjustment portion (100) is coupled to an image forming device (200) to move the image forming device (200) and to correct or modify the image displayed on the windshield. When the head-up display device (10) is moved to correct or modify the image, the stability of the head-up display device (10) may be reduced. When the head-up display device (10) is formed to correct the image by moving it, the head-up display device (10) must further include a separate fixed member.

[0040] A support member (332) is formed such that one end is coupled to one side of a lower housing (320) to support a length adjustment member (100). The support member (332) may be formed in a plate shape to stably support the length adjustment member (100). A first nut member (331) and a second nut member (333) may be formed on each side of the support member (332).

[0041] The first nut portion (331) and the second nut portion (333) are each coupled to the support portion (332). The first nut portion (331) is formed to protrude toward the outside of the head-up display device (10), and the second nut portion (333) is formed to protrude toward the inside of the lower housing (320). The second nut portion (333) is formed to face at least a part of the image forming device (200). The first nut portion (331) and the second nut portion (333) are each formed to have a hollow cylinder shape, but can be formed integrally.

[0042] The aiming bolt (110) is installed so that it penetrates the first nut portion (331) and the second nut portion (333) of the fixed portion (330) and at least a portion is inserted into the movable portion (120). The aiming bolt (110) is supported at one end of the first nut portion (331) so that it does not move into the interior of the first nut portion (331) even when rotated. The aiming bolt (110) rotates, causing the movable portion (120) and the joint (130) to move in a straight line. The joint (130) is coupled with an image forming device to cause the image forming device (200) to move in a straight line. If the head-up display device (10) includes a plurality of length adjustment portions (100), each length adjustment portion (100) may include one or more aiming bolts (110). The aiming bolt (110) includes a head portion (111), a body portion (112), and a bolt portion (113).

[0043] The bolt portion (113) is formed so as to be inserted into the interior of the first nut portion (331). One end of the first nut portion (331) has an inner diameter smaller than the diameter of the body portion (112). When the aiming bolt (110) rotates, the first nut portion (331) is formed so that the head portion (111) or the body portion (112) does not move into the interior of the first nut portion (331). More specifically, one end of the first nut portion (331) may have an inner diameter smaller than the diameter of the body portion, and may include a nozzle shape in which the inner diameter gradually decreases toward the support portion (332). The shape of the first nut portion (331) is not necessarily limited to a nozzle shape. The fixed part (330) may further include a separate holder so that the head part (111) or the body part (112) does not move inside the first nut part (331) even if the aiming bolt (110) rotates.

[0044] The second nut portion (333) may be formed to have a hollow cylinder or a square cylinder shape. A moving portion (120) is inserted into the interior of the second nut portion (333). More specifically, the moving portion (120) includes a first groove (121), a connecting portion (122), and an insertion portion (123), and the first groove (121) is inserted into the interior of the second nut portion (333). When the aiming bolt (110) rotates, the moving portion (120) performs linear motion, and the second nut portion (333) guides the movement of the moving portion (120). The first groove (121) may be extended to have the same length as the second nut portion (333). If the first groove (121) and the second nut portion (333) have the same length, it is possible to prevent the moving portion (120) from being excessively inserted into the interior of the second nut portion (333).

[0045] The head portion (111) is formed to have a larger diameter than the body portion (112) and the bolt portion (113). The head portion (111) includes a groove at one end and is formed so that the aiming bolt (110) can be rotated using a tool such as a screwdriver. When one end of the length adjustment portion (100) is formed to protrude toward the outside of the lower housing (320), the head portion (111) is located outside the lower housing (320). When the head portion (111) is located outside the lower housing (320), the aiming bolt (110) can be rotated without disassembling the housing.

[0046] Both ends of the body portion (112) are connected to the head portion (111) and the bolt portion (113), respectively. When the head portion (111) rotates, the body portion (112) is formed to rotate simultaneously with the head portion (111). The body portion (112) is formed such that the diameter of one end is smaller than the diameter of the other end, and has a nozzle shape in which the diameter gradually decreases. One end of the body portion (112) is connected to the bolt portion (113) and the other end is connected to the head portion (111), and is supported at one end of the first nut portion (331). The body portion (112) is formed so as not to move into the interior of the first nut portion (331).

[0047] The bolt portion (113) is coupled with the body portion (112). When the head portion (111) and the body portion (112) perform rotational movement, the bolt portion (113) is formed to rotate simultaneously. One end of the bolt portion (113) is inserted into the movable portion (120). More specifically, at least a portion of the bolt portion (113) is inserted into the first groove (121) to perform rotational movement, and the movable portion (120) performs linear movement.

[0048] According to one embodiment of the present disclosure, when the aiming bolt (110) performs rotational motion, the moving part (120) is formed to perform linear motion. One end of the moving part (120) is inserted into the aiming bolt (110), and the other end is inserted into the joint (130). At least a portion of the moving part (120) may be inserted into the second nut part (333). When the head-up display device (10) includes a plurality of length adjustment parts (100), each length adjustment part (100) may include one or more moving parts (120). The moving part (120) includes a first groove (121), a connecting part (122), and an insertion part (123).

[0049] The first groove (121) is formed to have a cylindrical shape and may include a circular hollow. A bolt portion (113) is inserted into the hollow of the first groove (121). When the aiming bolt (110) performs rotational movement, the moving portion (120) performs linear movement. When the moving portion (120) performs linear movement, the second nut portion (333) guides the movement of the moving portion (120). The first groove (121) may be extended to have the same length as the second nut portion (333).

[0050] Both ends of the connecting part (122) are connected to the first groove (121) and the insertion part (123), respectively. When the aiming bolt (110) rotates, the first groove (121) performs linear motion, and the connecting part (122) is formed to perform linear motion simultaneously with the first groove (121). The connecting part (122) may include a circular plate shape having a diameter longer than the outer diameter of the first groove (121). If the connecting part (122) includes a circular plate shape, it can prevent the moving part (120) from being excessively inserted into the interior of the second nut part (333). However, as long as it prevents the moving part (120) from being excessively inserted into the interior of the second nut part (333), the connecting part (122) does not necessarily have to include a circular plate shape. The connecting part (122) may include other shapes depending on the purpose and use.

[0051] The insert (123) is coupled to one end of the connecting part (122). When the aiming bolt (110) performs rotational movement, the insert (123) moves linearly together with the first groove (121) and the connecting part (122). One end of the insert (123) may be formed to have a sphere shape. At least a portion of the insert (123) is inserted into the joint (130). More specifically, the insert (123) is inserted into the second groove (131). The second groove (131) wraps around and secures one end of the insert (123).

[0052] According to one embodiment of the present disclosure, a joint (130) is formed to be coupled with a moving part (120). At least one end of the joint (130) is inserted into at least a part of the moving part (120), and the other end is coupled with an image forming device (200). When the aiming bolt (110) rotates, the moving part (120) and the joint (130) perform linear motion. The joint (130) is coupled with the image forming device (200) to cause the image forming device (200) to move linearly. When the head-up display device (10) includes a plurality of length adjustment parts (100), each length adjustment part (100) may include one or more joints (130). The joint (130) includes a second groove (131) and a fastening part (132).

[0053] The second groove (131) is formed to allow the insertion part (123) to be inserted. When the aiming bolt (110) rotates, the second groove (131) moves linearly at the same time as the moving part (120). If one end of the insertion part (123) is formed to have a spherical shape, the second groove (131) is formed to surround the spherical shape.

[0054] The connecting part (132) is coupled to one end of the second groove (131). When the moving part (120) performs linear motion, the connecting part (132) moves linearly simultaneously with the second groove (131). The connecting part (132) is coupled to the image forming device (200). A bend may be formed in at least a part of the connecting part (132) so that the connecting part (132) is fixed to the image forming device (200). The length adjustment part (100) and the image forming device (200) are coupled using the connecting part (132). The length of the length adjustment part (100) can be changed as the moving part (120) and the joint (130) move linearly. The aiming bolt (110) rotates so that the joint (130) moves linearly, and the joint (130) can push or pull the image forming device (200). The image forming device (200) can move using the joint (130).

[0055] According to one embodiment of the present disclosure, an image forming device (200) is formed to emit an image related to the operation information of a vehicle. The image forming device (200) is disposed inside an upper housing (310) or a lower housing (320). The image forming device (200) may include a heat sink (210), a printed circuit board (220), a funnel (230), a frame (240), and an LCD (250).

[0056] The heat sink (210) is formed to release heat generated from a light source toward the outside of the head-up display device (10). The heat sink (210) may be folded to accommodate a printed circuit board (220) or a funnel (230), and the printed circuit board (220) may include a light source.

[0057] The heat sink (210) may include a plurality of fins (not shown) to facilitate active heat exchange with the outside. If the housing (310, 320) includes a heat dissipation opening, the heat dissipation opening is positioned so that the heat sink (210) is exposed. When the heat sink (210) is exposed, at least a portion of the length adjustment part (100) is coupled with the heat sink (210). The heat sink (210) may further include a fastener (not shown), and the fastener is coupled with the fastener (132). When the head-up display device (10) uses the heat sink (210) to release heat from inside the housing (310, 320) toward the outside, the lifespan of the components placed inside the head-up display device (10) can be extended.

[0058] The funnel (230) is formed so that light emitted from a light source can be uniformly projected toward the LCD (250). The funnel (230) can be positioned between the light source and the LCD (250). The image forming device (200) may further include a frame (240) to support the heat sink (210), the printed circuit board (220), the funnel (230), and the LCD (250).

[0059] A screen (not shown) is formed to transmit an image emitted from an image forming device (200). The screen is placed inside a lower housing (320) and transmits the emitted image to a first mirror (410).

[0060] The first mirror (410) is formed to reflect an image emitted from an image forming device (200) so that the image is displayed on the windshield. The first mirror (410) is placed inside the lower housing (320). The first mirror (410) may be formed to have an aspherical shape. The first mirror (410) may be formed to be rotatable by including mounts at both ends, and the screen may fix the first mirror (410) and restrict rotation.

[0061] FIG. 3 is a perspective view of a head-up display device according to another embodiment of the present disclosure.

[0062] Figure 4 is a cross-sectional view according to the BB' cross-section of Figure 3.

[0063] Referring to FIGS. 3 and 4, the image forming device (200) may be placed on the lower surface of the lower housing (320). The head-up display device (10) further includes a second mirror (420) to reflect an image emitted from the image forming device (200), and the reflected image is transmitted to the first mirror (410). The first mirror (410) can reflect the received image and display it on the windshield. The second mirror (420) is placed inside the housing (310, 320) and is coupled to one side of the screen.

[0064] Conventionally, the length adjustment unit (100) is formed to be coupled to the outside of the housing (310, 320) and to directly move the head-up display device (10), which would increase the volume of the head-up display device (10) or require the inclusion of additional separate fixing members. However, the head-up display device (10) according to the present disclosure is formed such that the length adjustment unit (100) is coupled to the image forming device (200), thereby not including separate fixing members or minimizing the volume of the housing (310, 320).

[0065] FIG. 5 is a drawing showing a first operating state of a head-up display device according to one embodiment of the present disclosure.

[0066] FIG. 6 is a drawing showing a second operating state of a head-up display device according to one embodiment of the present disclosure.

[0067] FIG. 7 is a drawing showing a third operating state of a head-up display device according to one embodiment of the present disclosure.

[0068] FIG. 8 is a drawing showing a fourth operating state of a head-up display device according to one embodiment of the present disclosure.

[0069] FIG. 9 is a drawing showing a fifth operating state of a head-up display device according to one embodiment of the present disclosure.

[0070] FIG. 10 is a drawing showing a sixth operating state of a head-up display device according to one embodiment of the present disclosure.

[0071] FIG. 11 is a drawing showing a seventh operating state of a head-up display device according to one embodiment of the present disclosure.

[0072] With reference to FIGS. 5 to 11, the operating principle and effect of a head-up display device (10) according to one embodiment of the present disclosure will be described in detail.

[0073] Referring to FIG. 5, a plurality of length adjustment units (100) are combined with a fixed unit (330) to support the image forming device (200) so that it can move. The head-up display device (10) includes a first length adjustment unit (100a), a second length adjustment unit (100b), and a third length adjustment unit (100c), and the first to third length adjustment units (100a, 100b, 100c) can support the image forming device (200) so that it can move in three points.

[0074] According to one embodiment of the present disclosure, the first to third length adjustment parts (100a, 100b, 100c) are arranged to form an isosceles triangle shape, and each length adjustment part (100) is arranged to be located at the vertex of the isosceles triangle. A virtual straight line L1 is defined to connect the centers of the first length adjustment part (100a) and the third length adjustment part (100c). L1 may be formed to have a direction parallel to the x-axis direction. A virtual straight line L2 is defined to intersect L1 at a right angle from the center of the second length adjustment part (100b) toward L1. L2 may be formed to have a direction parallel to the y-axis direction. When L1 and L2 intersect, the intersection point of L1 and L2 is defined as a reference point R.

[0075] The first to third length adjustment parts (100a, 100b, 100c) are formed such that their respective aiming bolt (110), moving part (120), and joint (130) are extended parallel to the z-axis direction. When each moving part and joint performs linear motion in the z-axis direction, the lengths of the first to third length adjustment parts (100a, 100b, 100c) may vary.

[0076] The first length adjustment part (100a) and R are spaced apart to have a length of d1, and the third length adjustment part (100c) and R are spaced apart to have a length of d1. The second length adjustment part (100b) is spaced apart from R to have a length of d2. The center of each of the first to third length adjustment parts (100a, 100b, 100c) is arranged to form an isosceles triangle shape having a base length of 2 × d1 and a height length of d2.

[0077] The first to third length adjustment parts (100a, 100b, 100c) each have the same length, but can move to change their lengths. When the lengths of the first to third length adjustment parts (100a, 100b, 100c) change simultaneously, the image forming device (200) can perform linear movement along the z-axis direction. When the image forming device (200) moves linearly, the magnification of the image displayed on the windshield can be adjusted, and the position where the image is displayed on the windshield can be changed.

[0078] Referring to FIG. 6, the second length adjustment unit (100b) can move to change its length. When the length of the second length adjustment unit (100b) changes, the image forming device (200) can perform linear movement along the z-axis direction at its upper end. By changing the length of the second length adjustment unit (100b), the length of the upper side of the image displayed on the windshield can be changed. If a trapezoidal image with the upper and lower sides parallel is displayed on the windshield, the length of the upper side can be changed to correct it so that a rectangular image is displayed.

[0079] Referring to FIG. 7, the first length adjustment unit (100a) and the third length adjustment unit (100c) each have the same length, but can move to change their lengths. When the lengths of the first length adjustment unit (100a) and the third length adjustment unit (100c) change simultaneously, the image forming device (200) can perform linear movement along the z-axis direction at its lower end. By changing the lengths of the first length adjustment unit (100a) and the third length adjustment unit (100c) simultaneously, the length of the bottom side of the image displayed on the windshield can be changed. When a trapezoidal image with the top and bottom sides parallel is displayed on the windshield, the length of the bottom side can be changed to correct it to display a rectangular image.

[0080] Referring to FIG. 8, the first length adjustment unit (100a) can move to change its length. When the length of the first length adjustment unit (100a) changes, the image forming device (200) can perform linear movement along the z-axis direction at the lower left side. By changing the length of the first length adjustment unit (100a), the length of the left side of the image displayed on the windshield can be changed. If a trapezoidal image with parallel left and right sides is displayed on the windshield, the length of the left side can be changed to correct it so that a rectangular image is displayed.

[0081] Referring to FIG. 9, the third length adjustment unit (100c) can move to change its length. When the length of the third length adjustment unit (100c) changes, the image forming device (200) can perform linear movement along the z-axis direction at the lower right side. By changing the length of the third length adjustment unit (100c), the length of the right side of the image displayed on the windshield can be changed. If a trapezoidal image with parallel left and right sides is displayed on the windshield, the length of the right side can be changed to correct it to display a rectangular image.

[0082] Referring to FIG. 10, the first length adjustment unit (100a) and the second length adjustment unit (100b) each have the same length, but can move to change their lengths. When the lengths of the first length adjustment unit (100a) and the second length adjustment unit (100b) change simultaneously, the image forming device (200) can perform linear movement along the z-axis direction at its left end. By changing the lengths of the first length adjustment unit (100a) and the second length adjustment unit (100b) simultaneously, the left side of the image displayed on the windshield can be moved. When a parallelogram-shaped image with the left and right sides perpendicular is displayed on the windshield, the left side of the displayed image can be moved to correct it to display a rectangular-shaped image.

[0083] Referring to FIG. 11, the second length adjustment unit (100b) and the third length adjustment unit (100c) each have the same length, but can move to change their lengths. When the lengths of the second length adjustment unit (100b) and the third length adjustment unit (100c) change simultaneously, the image forming device (200) can perform linear movement along the z-axis direction at its right end. By changing the lengths of the second length adjustment unit (100b) and the third length adjustment unit (100c) simultaneously, the left side of the image displayed on the windshield can be moved. When a parallelogram-shaped image with the left and right sides perpendicular to each other is displayed on the windshield, the right side of the displayed image can be moved to correct it so that a rectangular-shaped image is displayed.

[0084] According to one embodiment of the present disclosure, the first to third length adjustment parts (100a, 100b, 100c) may each have different lengths. When the lengths of the first to third length adjustment parts (100a, 100b, 100c) each have different lengths, the image forming device (200) may move three points. An image in the shape of a parallelogram with the upper and lower sides perpendicular may be moved to correct it to have a rectangular image, or the position where the image is displayed may be changed.

[0085] A head-up display device according to one embodiment of the present disclosure can move an image forming device (200) using a plurality of length adjustment units (100) to correct a distorted image or change the position of the image. This eliminates the inconvenience of strict tolerance management during the manufacturing stage of the head-up display device (10) and allows a service center to simply correct the image and change the position where the image is displayed afterwards. In this case, the image can be simply corrected and the position where the image is displayed can be changed using only the length adjustment units (100) without using expensive correction equipment or software that requires separate training to learn how to use it.

[0086] The above description is merely an illustrative explanation of the technical concept of the present embodiment, and a person skilled in the art to which the present embodiment belongs would be able to make various modifications and variations within the scope of the essential characteristics of the present embodiment. Accordingly, the present embodiments are intended to explain, not limit, the technical concept of the present embodiment, and the scope of the technical concept of the present embodiment is not limited by these embodiments. The scope of protection of the present embodiment shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present embodiment. Explanation of the symbols

[0087] 10: Head-up display 100: Length adjustment part 100a: First length adjustment part 100b: Second length adjustment part 100c: 3rd length adjustment part 110: Aiming Bolt 111: Head section 112: Body part 113: Bolt section 120: Moving part 121: Home 1 122: Connection 123: Insert 130: Joint 131: 2nd Home 132: Connecting part 200: Image forming device 210: Heat sink 220: Printed circuit board 230: Funnel 240: Frame 250: LCD 310: Upper housing 320: Lower housing 330: Fixed part 331: 1st nut section 332: Support 333: Second nut section 410: 1st Mirror 420: Second Mirror L1: Imaginary line L2: Imaginary line R: Reference point

Claims

Claim 1 A head-up display device comprising an image forming device, the head-up display device comprising: an upper housing; a lower housing having a receiving space inside and wherein the image forming device is disposed therein; one or more mirrors disposed inside the lower housing and formed to reflect an image emitted from the image forming device; and one or more length adjustment members coupled to the image forming device and the lower housing to support the image forming device so as to be movable, wherein each of the one or more length adjustment members has one end formed to protrude toward the outside of the lower housing. Claim 2 In claim 1, the head-up display device wherein one or more length adjustment parts support the image forming device so as to be movable in three points. Claim 3 A head-up display device according to claim 1, wherein the lower housing comprises one or more fixing parts, and the one or more fixing parts are formed to be coupled to each of the one or more length adjustment parts. Claim 4 In paragraph 3, the image forming device includes a heat sink, and the one or more length adjustment parts are a head-up display device that is fitted and coupled with the heat sink. Claim 5 In paragraph 4, the head-up display device further comprises a lower housing formed to expose the heat sink in at least a portion thereof. Claim 6 In claim 5, the fixed part comprises: a support part formed protruding toward the heat dissipation hole; a first nut part formed protruding toward the outside of the lower housing from the support part; and a second nut part formed protruding toward the heat dissipation plate from the support part, and the length adjustment part comprises: an aiming bolt formed to rotate; a moving part into which at least a portion of the aiming bolt is inserted; and a joint into which at least a portion of the moving part is inserted, wherein the moving part and the joint are formed to move linearly according to the rotational movement of the aiming bolt, a head-up display device. Claim 7 In claim 6, the head-up display device comprises: a head portion formed to rotate the aiming bolt; a body portion formed to have a nozzle shape; and a bolt portion in which at least a portion is inserted into the moving portion. Claim 8 A head-up display device according to claim 6, wherein the moving part comprises an insertion part, a connecting part, and a first groove, and the insertion part is formed such that one end has a spherical shape, and at least a portion of it is inserted into the joint. Claim 9 A head-up display device according to claim 8, wherein the first groove is formed to have a cylinder shape, and the aiming bolt includes a bolt portion formed such that at least a portion is inserted into the first groove. Claim 10 A head-up display device according to claim 6, wherein the joint comprises a fastening portion and a second groove, the fastening portion is coupled to at least a part of the heat sink, and the moving portion comprises an insertion portion formed such that at least a part of it is inserted into the second groove.

Images