Optical component and rearview mirror component including the same

Abstract

According to the embodiment, the optical component includes an inclined bottom surface, a shell having multiple inner surfaces on the periphery of the bottom surface and having a accommodating space with a top opening, and a lighting module arranged on the inclined bottom surface, wherein the lighting module includes a substrate obliquely arranged on the inclined bottom surface, at least one light-emitting device arranged on the substrate, and a resin layer that seals the light-emitting device and the substrate, the upper surface of the resin layer diffuses the light emitted from the light-emitting device to emit light, the multiple inner surfaces include a first inner surface adjacent to the light-emitting device, a second inner surface facing the first inner surface, a third inner surface and a fourth inner surface arranged between the first inner surface and the second inner surface and facing each other, and the height between the bottom surface of the shell and the upper surface of the shell increases from the first inner surface toward the second inner surface, and decreases from the third inner surface toward the fourth inner surface.

Description

Technical Field

[0001] The embodiment relates to a lighting module having a light emitting device and providing a surface light source.

[0002] Embodiments relate to an optical assembly having a lighting module.

[0003] Embodiments are directed to a rearview mirror assembly including an optical assembly. Background Art

[0004] Typical lighting applications include automotive lighting and backlighting for displays and signage.

[0005] Light emitting devices, such as light emitting diodes (LEDs), have advantages over traditional light sources such as fluorescent lamps and incandescent lamps, such as low power consumption, semi-permanent life, fast response speed, safety, and environmental protection. Such light emitting diodes are applied to various optical components, such as various display devices, indoor lamps, or outdoor lamps.

[0006] Recently, as a light source for a vehicle, a lamp using a light emitting diode has been proposed. For example, a light emitting diode is applied to a vehicle headlight, a taillight, a turn signal, etc. Since the light emitting diode has a small size, the design freedom of the lamp can be increased. In addition, compared with an incandescent lamp, the light emitting diode has an advantage in that they consume less power and have a semi-permanent service life.

[0007] However, since the directivity angle of light emitted from a light emitting diode is small, when a light emitting diode is used as a vehicle lamp, it is necessary to increase the light emitting area of ​​the lamp using the light emitting diode.

[0008] For example, light emitting diodes can be applied to blind spot detection (BSD) systems. A blind spot detection system is a system that uses a sensor device of a vehicle to detect other vehicles located behind and to the side of the driver and provides information about them to the driver through vision, hearing, touch, etc. In such a blind spot detection system, light emitting diodes can be set in the side mirrors, rearview mirrors or A-pillar areas of the vehicle to visually provide rear-view information to the driver.

[0009] However, since the light is emitted in all directions from the light emitting diode, there is a problem that visual information cannot be effectively provided to the driver. In addition, there is also a problem that the light emitted from the light emitting diode may be emitted in the direction of the driver of other vehicles, thereby obstructing the sight and causing an accident.

[0010] Therefore, a new optical component and blind spot warning device that can solve the above problems are needed. Summary of the invention

[0011] Technical issues

[0012] The embodiment aims to provide an optical component and a blind spot warning device capable of improving the luminous intensity of a surface light source.

[0013] Furthermore, the embodiments are directed to providing an optical component and a blind spot warning device capable of improving the uniformity of a surface light source.

[0014] Furthermore, the embodiments are directed to providing an optical assembly and a blind spot warning device capable of controlling a light emission direction.

[0015] Furthermore, the embodiments are directed to providing an optical assembly capable of controlling the brightness value of light emitted toward a driver and the brightness value of light emitted toward vehicles located to the side and rear of the driver, and the optical assembly and a blind spot warning device.

[0016] Technical Solution

[0017] According to the embodiment, the optical component includes a shell and a lighting module, the shell includes an inclined bottom surface, a plurality of inner surfaces surrounding the periphery of the bottom surface, and a receiving space with an upper opening, the lighting module is arranged on the inclined bottom surface, wherein the lighting module includes a substrate obliquely arranged on the inclined bottom surface, at least one light-emitting device arranged on the substrate, and a resin layer that seals the light-emitting device and the substrate, the upper surface of the resin layer emits light by diffusing the emitted light from the light-emitting device, and the plurality of inner surfaces include a first inner surface adjacent to the light-emitting device, a second inner surface facing the first inner surface, and a third inner surface and a fourth inner surface arranged between the first inner surface and the second inner surface and facing each other, wherein the height between the bottom surface of the shell and the upper surface of the shell increases from the first inner surface toward the second inner surface, and decreases from the third inner surface toward the fourth inner surface.

[0018] In addition, according to the embodiment, the rearview mirror assembly includes a blocking member arranged on the optical assembly and including an opening area, and a mirror member arranged on the blocking member, wherein the optical assembly includes a shell and a lighting module, the shell including an inclined bottom surface, a plurality of inner surfaces surrounding the outer periphery of the bottom surface, and a receiving space with an upper opening, and the lighting module is arranged on the inclined bottom surface, wherein the lighting module includes: a substrate obliquely arranged on the inclined bottom surface; at least one light-emitting device arranged on the substrate; and a resin layer that seals the light-emitting device and the substrate, the upper surface of the resin layer emits light by diffusing the emitted light from the light-emitting device, and the plurality of inner surfaces include a first inner surface adjacent to the light-emitting device, a second inner surface facing the first inner surface, and a third inner surface and a fourth inner surface arranged between the first inner surface and the second inner surface and facing each other, wherein the height between the bottom surface of the shell and the upper surface of the shell increases from the first inner surface toward the second inner surface, and decreases from the third inner surface toward the fourth inner surface.

[0019] Beneficial Effects

[0020] The optical assembly according to the embodiment can emit light as a surface light source and can have improved luminous intensity and improved light uniformity. In addition, the optical assembly can prevent the formation of hot spots and minimize light loss.

[0021] In addition, the lighting module of the optical assembly according to the embodiment can be tilted at a set tilt angle. Therefore, the optical assembly can control the emission direction of the light emitted from the lighting module and the brightness value according to the emission direction.

[0022] In addition, the rearview mirror assembly according to the embodiment can minimize light loss and maximize the light emitted by the mirror member. In addition, the rearview mirror assembly can control the emission direction of the light emitted from the optical assembly and the brightness value of the light according to the emission direction. In detail, the rearview mirror assembly can control the light emission direction and the brightness value of the light by the optical assembly tilted at a set inclination angle. Therefore, the rearview mirror assembly can provide high-brightness light to the driver, so that the driver can effectively identify the sign and / or icon of the indicator. In addition, a relatively low-brightness light can be provided to another vehicle located at the rear side of the driver's vehicle, thereby minimizing or preventing the driver of the other vehicle from being disturbed by light. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is an exploded perspective view of an optical assembly according to an embodiment.

[0024] Figure 2 is a top view of an optical assembly according to an embodiment.

[0025] Figure 3 is a side view of a housing according to an embodiment.

[0026] Figure 4 is a side view of an optical assembly according to an embodiment.

[0027] Figure 5 is a top view of a lighting module according to an embodiment.

[0028] Figure 6 is shown along Figure 5 A sectional view of a section taken along line AA'.

[0029] Figure 7 yes Figure 6 An enlarged view of area A1.

[0030] Figure 8 is shown along Figure 5 Another cross-sectional view of the section taken along line AA'.

[0031] Fig. 9 yes Figure 8 An enlarged view of area A2.

[0032] Fig.10 is shown along Figure 5 Another cross-sectional view of the section taken along line AA'.

[0033] Fig.11 yes Fig.10 An enlarged view of area A3.

[0034] Fig.12 is shown along Figure 5 Another cross-sectional view of the section taken along line AA'.

[0035] Fig.13 is a front view showing a light emitting device on a substrate in a lighting module according to an embodiment.

[0036] Fig.14 yes Fig.13 Side view of a light emitting device.

[0037] Fig.15 is an exploded perspective view of a rearview mirror assembly according to an embodiment.

[0038] Fig.16 is a cross-sectional view of a rearview mirror assembly according to an embodiment.

[0039] Fig.17 is a top view of a blocking member according to an embodiment.

[0040] Fig.18 is a diagram for explaining an exit angle of light emitted from a rearview mirror assembly according to an embodiment. DETAILED DESCRIPTION

[0041] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0042] The technical spirit of the present invention is not limited to some embodiments to be described, and can be implemented in various other forms, and can be selectively combined and replaced within the scope of the technical spirit of the present invention. One or more of the components. In addition, the terms (including technical terms and scientific terms) used in the embodiments of the present invention, unless clearly defined and clearly described, can be interpreted as the meaning that ordinary technicians in the field to which the present invention belongs can usually understand, and commonly used terms such as terms defined in dictionaries should be able to interpret their meanings in the context of considering the contextual meaning of the relevant technology. In addition, the terms used in the embodiments of the present invention are used to explain the embodiments and are not used to limit the present invention. In this specification, unless otherwise specified in the phrase, the singular form may also include the plural form, and in the case of stating at least one (or more than one) of A and (and) B, C, it may include one or more of all combinations that can be combined with A, B and C. When describing the components of the embodiments of the present invention, terms such as first, second, A, B, (a) and (b) can be used. These terms are only used to distinguish the components from other components, and the properties, order or process of the corresponding components, etc. may not be determined by the terms. Furthermore, when it is described that a component is "connected," "engaged," or "combined" to another component, the description may include not only being directly connected, engaged, or combined to another component, but also being "connected," "engaged," or "combined" through another component between the component and the other component. In addition, when it is described as being formed or disposed "above" or "below" each component, the description includes not only when the two components are in direct contact with each other, but also when one or more other components are formed or disposed between the two components. Furthermore, when expressed as "above" or "below," it may refer to a downward direction as well as an upward direction relative to an element.

[0043] The optical assembly according to the present invention can be applied to various lamp devices that require lighting, such as vehicle lamps, household lighting devices or industrial lighting devices. For example, when applied to vehicle lamps, it can be applied to headlamps, side lamps, rearview mirrors, fog lamps, tail lamps, brake lights, daytime running lights, interior lamps, door sill trim lamps, rear combination lamps, reversing lamps, etc. In addition, when applied to vehicle lamps, it can be applied to blind spot detection (BSD) systems arranged on rearview mirrors or A-pillars. In addition, the optical assembly of the present invention can be applied to indoor and outdoor advertising devices, display devices, and various electric vehicle fields. In addition, it can also be applied to all lighting-related fields or advertising-related fields that are currently developed and commercialized or can be realized according to future technological developments.

[0044] Figure 1 is an exploded perspective view of an optical assembly according to an embodiment. Figure 2 is a top view of an optical assembly according to an embodiment. Figure 3 is a side view of a housing according to an embodiment. Figure 4 is a side view of an optical assembly according to an embodiment. In addition, Figure 5 is a top view of a lighting module according to an embodiment.

[0045] exist Figures 1 to 5 As described above, the optical assembly according to the embodiment may be applied to left and right rearview mirrors of a vehicle and may provide visual information to a driver of the vehicle.

[0046] Will refer to Figures 1 to 5 The optical assembly applied to the left rearview mirror adjacent to the driver's seat is described. Since the optical assembly applied to the right rearview mirror adjacent to the passenger seat has the same shape and structure as the optical assembly applied to the driver's seat and is symmetrical to each other, for the convenience of description, the optical assembly set on the driver's seat will be mainly described.

[0047] refer to Figures 1 to 5 , the optical assembly 10 according to the embodiment may include a housing 300 , a lighting module 400 , an optical member 500 , and a cover member 600 .

[0048] The housing 300 may include one side opened and an accommodation space 305 therein. The housing 300 may accommodate the lighting module 400, the optical member 500, and the cover member 600.

[0049] The housing 300 has a predetermined reliability and may include a material that is not damaged by heat and light emitted from the lighting module 400. For example, the housing 300 may include a resin material or a metal material. In detail, the housing 300 may include at least one material of plastic, polypropylene (PP), polyethylene (PE), polycarbonate (PC), polybutylene terephthalate (PBT), acrylonitrile butadiene styrene copolymer (ABS), polyoxymethylene (POM), polyacetal polyphenylene ether (PPO) resin, and modified PPO resin. In addition, the housing 300 may include at least one of silver (Ag), copper (Cu), titanium (Ti), magnesium (Mg), chromium (Cr), molybdenum (Mo), nickel (Ni), aluminum (Al), stainless steel, and alloys containing the above-listed substances. When the housing 300 includes a metal material, the housing 300 may provide a heat dissipation path for the lighting module 400. Therefore, the heat dissipation characteristics of the optical assembly 10 may be improved.

[0050] The housing 300 may include a material capable of absorbing light emitted from the lighting module 400. In addition, the surface of the accommodation space 305 of the housing 300 may absorb light emitted from the lighting module 400. In detail, the housing 300 or the surface material may have a light absorptivity of more than 50% and a light reflectivity of less than 50%. For example, the housing 300 may be configured to have a color capable of absorbing light emitted from the lighting module 400. In detail, the material of the housing 300 or the surface of the accommodation space 305 may include black. Therefore, it is possible to prevent or minimize the light emitted from the lighting module 400 from being reflected on the bottom surface 310 and the inner surface 320 of the housing 300. Therefore, the light emitted from the lighting module 400 may be emitted in a set direction.

[0051] The housing 300 may include a bottom surface 310 and an inner surface 320 formed by the accommodation space 305 .

[0052] The bottom surface 310 of the housing 300 may have various shapes. In detail, when viewed in a plan view, the bottom surface 310 of the housing 300 may have various shapes, such as a polygon, a circle, and an ellipse. For example, the bottom surface 310 of the housing 300 may have a polygonal shape, such as Figure 2 Hexagonal shape shown.

[0053] The bottom surface 310 of the housing 300 may have an inclined shape. In detail, the bottom surface 310 of the housing 300 may be inclined in one direction with respect to the upper surface 301 of the housing 300 .

[0054] The inner surface 320 of the housing 300 may include a plurality of inner surfaces. The inner surface 320 of the housing 300 may be perpendicular to the upper surface 301 of the housing 300. The inner surface 320 of the housing 300 may include a first inner surface IS1 and a second inner surface IS2 facing the first inner surface IS1. In addition, the inner surface 320 of the housing 300 may include a third inner surface IS3 and a fourth inner surface IS4 disposed between the first inner surface IS1 and the second inner surface IS2. In addition, the inner surface 320 of the housing 300 may include a fifth inner surface IS5 disposed between the second inner surface IS2 and the third inner surface IS3 and a sixth inner surface IS6 disposed between the second inner surface IS2 and the fourth inner surface IS4.

[0055] At this time, the height between the bottom surface 310 of the housing 300 and the upper surface 301 of the housing 300 may increase from the first inner surface IS1 toward the second inner surface IS2. In addition, the height between the bottom surface 310 of the housing 300 and the upper surface 301 of the housing 300 may decrease from the third inner surface IS3 toward the fourth inner surface IS4.

[0056] That is, based on a direction from the first inner surface IS1 toward the second inner surface IS2 , the bottom surface 310 of the housing 300 may be inclined at a first inclination angle a1 with respect to the upper surface of the housing 300 .

[0057] The first inclination angle a1 may be about 15 degrees to about 40 degrees. In detail, the first inclination angle a1 may be about 20 degrees to about 35 degrees. When the first inclination angle a1 does not satisfy the above range, the light emitted from the lighting module 400 disposed on the bottom surface 310 may be emitted in an undesired direction. For example, when the first inclination angle a1 does not satisfy the above range, the brightness value of the light emitted in the direction where the user is located may be very low, and the brightness value of the light emitted in the undesired direction may be significantly higher. Preferably, the first inclination angle a1 may be about 25 degrees to about 30 degrees.

[0058] In addition, the bottom surface 310 of the housing 300 may be inclined at a second inclination angle a2 with respect to the upper surface of the housing 300 based on a direction from the third inner surface IS3 toward the fourth inner surface IS4 .

[0059] The second inclination angle a2 may be about 15 degrees to about 40 degrees. In detail, the second inclination angle a2 may be about 20 degrees to about 35 degrees. When the second inclination angle a2 does not meet the above range, the light emitted from the lighting module 400 disposed on the bottom surface 310 may be emitted in an undesired direction. For example, when the second inclination angle a2 does not meet the above range, the brightness value of the light emitted in the direction where the user is located may be very low, and the brightness value of the light emitted in the undesired direction may be significantly higher. Preferably, the second inclination angle a2 may be about 25 degrees to about 30 degrees.

[0060] The bottom surface 310 of the housing 300 may have a shape inclined in the above-mentioned direction. In detail, the height between the bottom surface 310 of the housing 300 and the upper surface of the housing 300 may have a minimum value at a first intersection P1 defined by the intersection of the first inner surface IS1 and the fourth inner surface IS4. In addition, the height between the bottom surface 310 of the housing 300 and the upper surface of the housing 300 may have a maximum value in an area adjacent to the fifth inner surface IS5. That is, the bottom surface 310 of the housing 300 may have a shape inclined from the first intersection P1 toward the fifth inner surface IS5.

[0061] The lighting module 400 may be disposed in the housing 300. The lighting module 400 is disposed in the accommodation space 305 and may be disposed on the bottom surface 310 of the housing 300. The lighting module 400 may have a constant thickness and may emit light as a surface light source.

[0062] The lighting module 400 may directly contact the bottom surface 310 of the housing 300. In addition, the lighting module 400 may indirectly contact the bottom surface 310 of the housing 300 through an adhesive member (not shown) or the like.

[0063] The lighting module 400 may have a shape corresponding to the bottom surface 310 of the housing 300. For example, a planar shape of the lighting module 400 may have a shape corresponding to the bottom surface 310. Therefore, the lighting module 400 may be easily disposed in the accommodation space 305.

[0064] The lighting module 400 may include a plurality of outer surfaces. For example, the lighting module 400 may include first to sixth inner surfaces IS1 to IS6 and first to sixth side surfaces S1 to S6 corresponding to each of them. Each of the first to sixth side surfaces S1 to S6 may be a side surface facing the first to sixth inner surfaces IS1 to IS6, respectively.

[0065] The lighting module 400 may be disposed obliquely on the bottom surface 310. For example, the lighting module 400 may be disposed to be inclined with respect to the upper surface 301 of the housing 300 at an inclined angle corresponding to the inclined bottom surface 310.

[0066] Therefore, the height between the upper surface of the lighting module 400 and the upper surface 301 of the housing 300 may increase in the direction from the first side surface S1 to the second side surface S2. In addition, the height between the upper surface of the lighting module 400 and the upper surface 301 of the housing 300 may decrease in the direction from the third side surface S3 to the fourth side surface S4.

[0067] That is, based on the direction from the first side surface S1 toward the second side surface S2, the upper surface and / or the bottom surface of the lighting module 400 may be inclined at a first inclination angle a1 relative to the upper surface of the housing 300. In addition, based on the direction from the third side surface S3 toward the fourth side surface S4, the upper surface and / or the bottom surface of the lighting module 400 may be inclined at a second inclination angle a2 relative to the upper surface of the housing 300.

[0068] Therefore, the lighting module 400 may be disposed obliquely in the housing 300. At this time, the height between the upper surface of the lighting module 400 and the upper surface of the housing 300 may have a minimum value at the second intersection point P2 defined as the intersection of the first side surface S1 and the fourth side surface S4. In addition, the height between the upper surface of the lighting module 400 and the upper surface of the housing 300 may have a maximum value in the area adjacent to the fifth side surface S5. That is, the lighting module 400 may have a shape that is inclined in the direction from the second intersection point P2 to the fifth side surface S5.

[0069] The lighting module 400 includes at least one light emitting device 100 and may emit light as a surface light source. The lighting module 400 may emit light in a direction of an upper portion of the opening of the housing 300.

[0070] The light emitting device 100 may be disposed in a region having a relatively small height difference with the upper surface 301 of the housing 300 to emit light in the direction of the region having a relatively large height difference. For example, the light emitting device 100 may be disposed adjacent to the first side surface S1 and may emit light in the direction of the second side surface S2. In detail, the distance between the light emitting device 100 and the first side surface S1 may be less than or equal to about 20% of the distance between the light emitting device 100 and the second side surface S2. In addition, the distance between the light emitting device 100 and the third side surface S3 may correspond to the distance between the light emitting device 100 and the fourth side surface S4.

[0071] The optical member 500 may be disposed in the accommodation space 305. The optical member 500 may be disposed on the lighting module 400. The optical member 500 may be disposed in direct or indirect contact with an upper surface of the lighting module 400.

[0072] The optical member 500 may have a shape corresponding to the lighting module 400. In detail, a lower surface of the optical member 500 may have a shape corresponding to an upper surface of the lighting module 400. Therefore, the optical member 500 may be easily disposed in the accommodation space 305, and light emitted from the lighting module 400 may be effectively controlled.

[0073] The optical member 500 may be obliquely disposed on the lighting module 400. In detail, the optical member 500 may be inclined at an inclination angle corresponding to the lighting module 400.

[0074] For example, the height between the upper surface of the optical member 500 and the upper surface 301 of the housing 300 may increase in the direction from the first inner surface IS1 to the second inner surface IS2. In addition, the height between the upper surface of the optical member 500 and the upper surface 301 of the housing 300 may decrease in the direction from the third inner surface IS3 to the fourth inner surface IS4.

[0075] That is, based on the direction from the first inner surface IS1 toward the second inner surface IS2, the upper surface of the optical member 500 may be inclined at a first inclination angle a1 relative to the upper surface of the housing 300. In addition, based on the direction from the third inner surface IS3 toward the fourth inner surface IS4, the upper surface of the optical member 500 may be inclined at a second inclination angle a2 relative to the upper surface of the housing 300. In addition, the optical member 500 may be obliquely disposed in the housing 300 by the inclined bottom surface 310 and the lighting module 400. That is, the optical member 500 may have a shape inclined from the first intersection P1 of the housing 300 toward the fifth inner surface IS5.

[0076] The optical member 500 may control the light emitted from the lighting module 400. For example, the optical member 500 may include a prism sheet including linear prisms extending in one direction. In detail, the optical member 500 may include a first optical member including linear prisms extending in one direction and a second optical member including linear prisms extending in another direction. Here, the other direction may be a direction perpendicular to the one direction. The first optical member and the second optical member may gather light emitted from the lighting module 400 in different directions.

[0077] The cover member 600 may be disposed in the accommodation space 305. The cover member 600 may be disposed on the optical member 500. The cover member 600 may be disposed to be in direct or indirect contact with an upper surface of the optical member 500.

[0078] The cover member 600 may have a shape corresponding to the accommodation space 305. For example, a planar shape of the cover member 600 may have a planar shape corresponding to the bottom surface 310 of the housing 300. Therefore, the cover member 600 may be easily disposed and fixed in the accommodation space 305.

[0079] The upper surface of the cover member 600 may be provided as a plane. For example, the upper surface 301 of the housing 300 may be provided as a plane, and the upper surface of the cover member 600 may be provided on the same plane as the upper surface 301 of the housing 300 .

[0080] The cover member 600 may include an inclined surface. In detail, a lower surface of the cover member 600 facing the optical member 500 may include an inclined surface corresponding to the lighting module 400 and / or the optical member 500.

[0081] In detail, the thickness between the upper and lower surfaces of the cover member 600 may increase in a direction from the first inner surface IS1 to the second inner surface IS2. In addition, the thickness between the upper and lower surfaces of the cover member 600 may decrease in a direction from the third inner surface IS3 to the fourth inner surface IS4.

[0082] That is, based on the direction from the first inner surface IS1 toward the second inner surface IS2, the lower surface of the cover member 600 may be inclined at a first inclination angle a1 relative to the upper surface of the lighting module 400. In addition, based on the direction from the third inner surface IS3 toward the fourth inner surface IS4, the lower surface of the cover member 600 may be inclined at a second inclination angle a2 relative to the upper surface of the cover member 600. That is, the lower surface of the cover member 600 may be inclined from the first intersection point P1 of the housing 300 toward the direction of the fifth inner surface IS5.

[0083] Therefore, the cover member 600 may cover one surface of the opened housing 300. That is, the cover member 600 may be disposed on the lighting module 400 and the optical member 500 to cover the components 400 and 500. Light emitted from the lighting module 400 may be emitted in the direction of the upper portion of the opening of the housing 300 through the optical member 500 and the cover member 600.

[0084] Figure 6 is shown along Figure 5 A cross-sectional view of a section taken along line AA', Figure 7 yes Figure 6 The enlarged view of area A1 is shown in FIG. Figure 6 to Figure 7 The lighting module 400 according to the embodiment is described in more detail.

[0085] refer to Figure 6 and Figure 7 The lighting module 400 may cover the substrate 401, the light emitting device 100 disposed on the substrate 401, and a resin layer 420 covering and sealing the substrate 401 and the light emitting device 100. In addition, the lighting module 400 may include a reflective member 410 disposed on the substrate 401.

[0086] The lighting module 400 may emit light emitted from the light emitting device 100 as a surface light source. The lighting module 400 may be defined as a light emitting unit or a light source module. The lighting module 400 may include one light emitting unit or a plurality of light emitting units on a substrate 401.

[0087] The substrate 401 may include a printed circuit board (PCB). For example, the substrate 410 may include at least one of a resin-based printed circuit board (PCB), a metal core PCB, a flexible PCB, a ceramic PCB, and an FR-4 substrate. When the substrate 401 is configured as a metal core PCB having a metal layer disposed on the bottom, the heat dissipation efficiency of the light emitting device 100 may be improved.

[0088] The substrate 401 may be electrically connected to the light emitting device 100. The substrate 401 may include a wiring layer (not shown) thereon, and the wiring layer may be electrically connected to the light emitting device 100. When a plurality of light emitting devices 100 are arranged on the substrate 401, the plurality of light emitting devices 100 may be connected in series, in parallel, or in series and in parallel through the wiring layer. The substrate 401 may be used as a base member or a support member disposed below the light emitting device 100 and the resin layer 420.

[0089] The upper surface of the substrate 401 may have an XY plane. The upper surface of the substrate 401 may be flat or have a curved surface. The thickness of the substrate 401 may be the height in the Z direction. Here, the X direction may be the first direction, and the Y direction may be the second direction. The Z direction may be a direction orthogonal to the first direction and the second direction. The length of the substrate 401 in the first direction may be greater than the width in the second direction. The length of the substrate 401 in the first direction may be more than twice, for example, more than four times, the width in the second direction.

[0090] The substrate 401 may include a light-transmitting material through which light is transmitted through the upper and lower surfaces. The light-transmitting material may include at least one of polyethylene terephthalate (PET), polystyrene (PS), and polyimide (PI).

[0091] The light emitting device 100 is disposed on the substrate 401 and can emit light in a first direction. That is, the light emitting device 100 can emit light in a direction of the second side surface S2 of the lighting module 400.

[0092] The light emitting device 100 may have an exit surface 81 through which light is emitted, and the exit surface 81 may be disposed, for example, in a third or vertical direction relative to the horizontal upper surface of the substrate 401. The exit surface 81 may be a vertical plane, or may include a concave or convex surface.

[0093] like Fig.13 and Fig.14 As shown, the light emitting device 100 is, for example, disposed on a substrate 401 and may be electrically connected to pads 403 and 405 of the substrate 401 through conductive bonding members 203 and 205. The conductive bonding members 203 and 205 may be made of solder or a metal material.

[0094] The light emitting device 100 may be disposed in a relatively upper region of the inclined bottom surface 310 of the housing 300. The light emitting device 100 may emit light in a first direction, for example, in a direction from the relatively inclined upper region to the lower region.

[0095] The optical axis of the light emitting device 100 may correspond to the bottom surface 310. In detail, the optical axis of the light emitting device 100 may be parallel to the bottom surface 310 of the housing 300, and may have a first inclination angle a1 with the upper surface of the housing 300.

[0096] One or more light emitting devices 100 may be disposed on the substrate 401. For example, as shown in the figure, one light emitting device 100 emitting light in a first direction may be disposed on the substrate 401.

[0097] As another example, although not shown in the drawings, a plurality of light emitting devices 100 emitting light in a first direction on the substrate 401 may be arranged in at least one row or in two or more rows in the second direction. In addition, a plurality of light emitting devices 100 may be arranged in at least one row or in two or more rows in the first direction. In addition, a plurality of light emitting devices 100 may be disposed on the substrate 401 in different directions.

[0098] The light emitting device 100 is a device including a light emitting diode (LED), and may include a package in which a light emitting chip is packaged. The light emitting chip 71 may emit at least one of blue light, red light, green light, ultraviolet (UV) light, and infrared light, and the light emitting device 100 may emit at least one of white light, blue light, red light, green light, and infrared light. The light emitting device 100 may be a side-view type having a bottom electrically connected to the substrate 401, but is not limited thereto. As another example, the light emitting device 100 may be an LED chip, but is not limited thereto.

[0099] The exit surface 81 of the light emitting device 100 may be disposed on at least one side of the light emitting device 100 instead of the upper surface. The exit surface 81 may be a surface adjacent to the substrate 401 among the side surfaces of the light emitting device 100, for example, a side surface adjacent to the upper surface of the substrate 401. The exit surface 81 is disposed on the side surface between the bottom surface and the upper surface of the light emitting device 100, and emits light of the highest intensity in the first direction. The exit surface 81 of the light emitting device 100 may be a surface adjacent to the reflective member 410, or a surface perpendicular to the upper surface of the substrate 401 and the upper surface of the reflective member 410.

[0100] The light emitted through the exit surface 81 of the light emitting device 100 may travel in a direction parallel to the upper surface of the substrate 401, may be reflected by the reflective member 410, or may travel in an upward direction of the resin layer 420. The thickness of the light emitting device 100 may be, for example, 3 mm or less, for example, in the range of 0.8 mm to 2 mm. The length of the light emitting device 100 in the second direction may be more than 1.5 times the thickness of the light emitting device 100, but is not limited thereto. The beam angle of the light emitting device 100 in the ±Y direction may be wider than the beam angle in the ±Z direction. The beam angle of the light emitting device 100 in the second direction may be more than 110 degrees, for example, 120 degrees to 160 degrees or more than 140 degrees. The beam angle of the light emitting device 100 in the third direction may be more than 110 degrees, for example, 120 degrees to 140 degrees.

[0101] The reflective member 410 may be disposed between the substrate 401 and the resin layer 420. The reflective member 410 may be provided in the form of a film having a metallic material or a non-metallic material. The reflective member 410 may be bonded to the upper surface of the substrate 401. The area of ​​the reflective member 410 may be smaller than the area of ​​the upper surface of the substrate 401. The reflective member 410 may be spaced apart from the edge of the substrate 401, and the resin layer 420 may be attached to the substrate 401 in the spaced area. In this case, the edge portion of the reflective member 410 may be prevented from peeling off.

[0102] The reflective member 410 may include an opening 417 in which the lower portion of the light emitting device 100 is disposed. The upper surface of the substrate 401 may be exposed in the opening 417 of the reflective member 410, and a portion combined with the lower portion of the light emitting device 100 may be disposed. The size of the opening 417 may be equal to or larger than the size of the light emitting device 100, but is not limited thereto. The reflective member 410 may contact the upper surface of the substrate 401 or may be attached between the resin layer 420 and the substrate 401, but is not limited thereto. Here, when a high reflective material is coated on the upper surface of the substrate 401, the reflective member 410 may be removed.

[0103] The reflective member 410 may be formed to have a thickness less than that of the light emitting device 100. The thickness of the reflective member 410 may include a range of 0.2 mm ± 0.02 mm. The lower portion of the light emitting device 100 may pass through the opening 417 of the reflective member 410 and the upper portion of the light emitting device 100 may protrude. The exit surface 81 of the light emitting device 100 may be disposed in a direction perpendicular to the upper surface of the reflective member 410.

[0104] The reflective member 410 may include a metal material or a non-metal material. The metal material may include a metal such as aluminum, silver or gold. The non-metal material may include a plastic material or a resin material. The plastic material may be any one selected from the group consisting of polyethylene, polypropylene, polystyrene, polyvinyl chloride, polybiphenyl chloride, polyethylene terephthalate, polyvinyl alcohol, polycarbonate, polybutylene terephthalate, polyethylene naphthalate, polyamide, polyacetal, polyphenylene oxide, polyamideimide, polyetherimide, polyetheretherketone, polyimide, polytetrafluoroethylene, liquid crystal polymer, fluororesin, copolymers thereof, and mixtures thereof. As the resin material, a reflective material such as TiO2 may be added to silicon or epoxy resin. 2 、Al 2 O 3 or SiO 2 The reflective member 410 may be implemented as a single layer or a multi-layer, and the light reflection efficiency may be improved through such a layer structure. The reflective member 410 according to an embodiment of the present invention reflects incident light, thereby increasing the amount of light and making the light uniformly distributed.

[0105] In addition, refer to Figure 7 , the reflective member 410 may include an adhesive layer (not shown), a reflective layer (not shown), and a plurality of dots 411. The adhesive layer may attach the reflective member 410 to the upper surface of the substrate 401. The adhesive layer is a transparent material and may be an adhesive such as a UV adhesive, silicone resin, or epoxy resin.

[0106] The reflective layer may include a plurality of reflective agents (not shown) inside the resin material. The reflective agent may be bubbles (e.g., air) or a medium having the same refractive index as that of air. The resin material of the reflective layer may be a material such as silicone or epoxy resin, and the reflective agent may be formed by injecting bubbles into the resin material. The reflective layer may reflect incident light or refract it in different directions through a plurality of reflective agents. The thickness of the reflective layer may be more than 80% of the thickness of the reflective member 410.

[0107] The plurality of dots 411 may be provided to protrude on the upper surface of the reflective member 410. For example, the plurality of dots 411 may be provided on the upper surface of the reflective layer in a shape protruding from the upper surface. The plurality of dots 411 may be spaced apart from the light emitting device 100. The plurality of dots 411 may be spaced apart from the light emitting device 100 in the first direction and the second direction. The plurality of dots 411 may be formed on the reflective layer by printing. The plurality of dots 411 may include reflective ink. A material including TiO 2 、CaCO 3 ,BaSO 4 、Al 2 O 3The plurality of dots 411 may be printed with any one of silicon, PS, and polystyrene. Each of the plurality of dots 411 may have a hemispherical side section or a polygonal shape. The material of the dots 411 may be white.

[0108] The density of the dot pattern of the plurality of dots 411 may increase as the distance from the exit surface 81 of the light emitting device 100 increases. In addition, the size of the plurality of dots 411 may change as they move away from the exit surface 81 of the light emitting device 100. For example, the width of the plurality of dots 411 may increase as the distance from the exit surface 81 of the light emitting device 100 increases.

[0109] Since a plurality of points are disposed on the upper surface of the reflective member 410 along the emission direction of the light emitting device 100 , light reflectivity may be improved, light loss may be reduced, and brightness of the surface light source may be improved.

[0110] The resin layer 420 may be disposed on the substrate 401. The resin layer 420 may face the substrate 401. The resin layer 420 may be disposed on all or part of the upper surface of the substrate 401. The area of ​​the lower surface of the resin layer 420 may be equal to or less than the area of ​​the upper surface of the substrate 401. The resin layer 420 may be formed of a transparent material. The resin layer 420 may include a resin material such as a silicone resin or an epoxy resin. The resin layer 420 may include a thermosetting resin material, for example, PC, OPS, PMMA, PVC, etc. may be selectively included. The resin layer 420 may be formed of glass, but is not limited thereto. For example, the main material of the resin layer 420 may be a resin material having a polyurethane acrylate oligomer as a main material. For example, a mixture of a polyurethane acrylate oligomer as a synthetic oligomer and a polymer type as polyacrylic acid may be used. Of course, the main material may further include monomers mixed with low-boiling point diluent reactive monomers such as IBOA (isobornyl acrylate), HPA (hydroxypropyl acrylate), 2-HEA (2-hydroxyethyl acrylate), etc. as additives, and may be mixed with photoinitiators (e.g., 1-hydroxycyclohexyl phenyl ketone, etc.) or antioxidants.

[0111] Since the resin layer 420 is provided as a resin as a layer for guiding light, it can be provided to have a thickness thinner than that of glass and can be provided as a flexible board. The resin layer 420 can emit a point light source emitted from the light emitting device 100 in the form of a line light source or a surface light source.

[0112] The upper surface of the resin layer 420 can emit light by diffusing the light emitted from the light emitting device 100. For example, beads (not shown) may be included in the resin layer 420, and the beads may diffuse and reflect the incident light to increase the amount of light. The beads may be provided in an amount of 0.01 to 0.3% based on the weight of the resin layer 420. The beads may be made of a material selected from silicon, silicon dioxide, glass bubbles, polymethyl methacrylate (PMMA), polyurethane, Zn, Zr, Al 2 O 3 The beads may be composed of any one of acrylic acid and acrylic acid, and the particle size of the beads may be in the range of about 1 μm to about 20 μm, but is not limited thereto.

[0113] Since the resin layer 420 is disposed on the light emitting device 100, it is possible to protect the light emitting device 100 and reduce the loss of light emitted from the light emitting device 100. The light emitting device 100 may be buried under the resin layer 420.

[0114] The resin layer 420 may be in contact with the surface of the light emitting device 100 and may be in contact with the exit surface 81 of the light emitting device 100. A portion of the resin layer 420 may be disposed in the opening 417 of the reflective member 410. A portion of the resin layer 420 may be in contact with the upper surface of the substrate 401 through the opening 417 of the reflective member 410. Therefore, a portion of the resin layer 420 is in contact with the substrate 401, thereby fixing the reflective member 410 between the resin layer 420 and the substrate 401.

[0115] Figure 8 is shown along Figure 5 Another cross-sectional view of the section taken along line AA'. Fig. 9 yes Figure 8 This is an enlarged view of area A2. Figure 8 and Fig. 9 In the description of the present invention, descriptions of the same and similar components as those of the above-described lighting module are omitted, and the same reference numerals are assigned to the same and similar components.

[0116] refer to Figure 8 and Fig. 9 , a diffusion layer 430 may be further provided on the upper surface of the resin layer 420. For example, the upper surface of the resin layer 420 may have an adhesive force, and the diffusion layer 430 may be bonded to the resin layer 420. For example, the upper surface of the resin layer 420 may be bonded to the diffusion layer 430 by an adhesive force having fine cilia. At this time, the diffusion layer 430 may be attached to the resin layer 420 by applying a predetermined pressure or pressure / heat. Since the diffusion layer 430 is bonded to the resin layer 420 by a self-adhesive force without a separate adhesive, the process of bonding the adhesive separately may be reduced, and the use of an adhesive harmful to the human body may be avoided, thereby reducing the process or material waste.

[0117] The material of the diffusion layer 430 may be a light-transmitting material. The diffusion layer 430 may include at least one of a polyester (PET) film, a polymethyl methacrylate (PMMA) material, or a polycarbonate (PC). The diffusion layer 430 may be provided as a film made of a resin material such as a silicone resin or an epoxy resin. The diffusion layer 430 may include a single layer or multiple layers.

[0118] The diffusion layer 430 may diffuse the light emitted through the resin layer 420. In addition, since a specific color may not be mixed when the luminous intensity of the light is high, the diffusion layer 430 may diffuse and mix the light.

[0119] The thickness of the diffusion layer 430 may be about 25 μm or more. For example, the thickness of the diffusion layer 430 may be about 25 μm to about 250 μm. In detail, the thickness of the diffusion layer 430 may be about 100 μm to about 250 μm. The diffusion layer 430 may have the above-mentioned thickness range and may provide incident light as a uniform surface light source.

[0120] The diffusion layer 430 may include at least one or more diffusers such as beads, phosphors and ink particles. The phosphor may include at least one of red phosphors, amber phosphors, yellow phosphors, green phosphors and white phosphors. The ink particles may include at least one of metal inks, UV inks and curing inks. The size of the ink particles may be smaller than the size of the phosphors. The surface color of the ink particles may be any one of green, red, yellow and blue. The ink type may be selectively applied in PVC (polyvinyl chloride) ink, PC (polycarbonate) ink, ABS (acrylonitrile tributylene styrene copolymer) ink, UV resin ink, epoxy resin ink, silicone ink, PP (polypropylene) ink, water-based ink, plastic ink, PMMA (polymethyl methacrylate) ink and PS (polystyrene) ink. The ink particles may include at least one of metal ink, UV ink and curing ink.

[0121] Fig.10 is shown along Figure 5 Another cross-sectional view of the cross section cut along the line AA', Fig.11 yes Fig.10 A magnified view of area A3. Fig.10 and Fig.11 In the description of the present invention, description of the same and similar components as those of the above-mentioned lighting module is omitted, and the same reference numerals are assigned to the same and similar components.

[0122] refer to Fig.10 and Fig.11, a light shielding portion 425 may be further disposed on the resin layer 420. The light shielding portion 425 may face the upper surface of the substrate 401. The light shielding portion 425 may be disposed between the resin layer 420 and the diffusion layer 430. The light shielding portion 425 may overlap the light emitting device 100 in a third direction defined as the z-axis direction. The light shielding portion 425 may be printed by overlapping a plurality of layers on the lower surface of the diffusion layer 430, and the light shielding portion 425 may have a structure including a plurality of patterns having different sizes.

[0123] In addition, the light shielding portion 425 may be provided to extend along the emission direction of the light emitted from the light emitting device 100. For example, the light shielding portion 425 may be provided to extend to a region where the plurality of dots 411 are provided. In this case, the light shielding portion 425 may not overlap with the plurality of dots 411 in the third direction. That is, the light shielding portion 425 may partially overlap with the light emitting device 100 and be formed in a region that does not overlap with the plurality of dots 411. Alternatively, the light shielding portion 425 may be provided in a region where a portion overlaps with the light emitting device 100 and the other portion overlaps with the plurality of dots 411. In this case, the area of ​​the light shielding portion 425 that overlaps with the plurality of dots 411 may be less than or equal to about 30% of the area of ​​the light shielding portion 425 that does not overlap with the plurality of dots 411.

[0124] The width of the light shielding portion 425 in the first direction may be greater than the width of the light emitting device 100 in the first direction. In addition, the width of the light shielding portion 425 in the second direction may be greater than the width of the light emitting device 100 in the second direction.

[0125] When viewed from the top, the planar shape of the light shielding portion 425 may have various shapes, such as a circle, an ellipse, and a polygon. For example, in consideration of the beam angle of the light emitting device 100, the planar shape of the light shielding portion 425 may include a shape having a curve.

[0126] The number of the light shielding portions 425 may be the same as the number of the light emitting devices 100. The light shielding portions 425 may be provided with a size or area sufficient to prevent a hot spot caused by light emitted in an emission direction of the light emitting device 100 on each light emitting device 100. In addition, since the light emitting device 100 emits light in a lateral direction, i.e., the first direction, the light shielding portions 425 cover an area that can improve light shielding efficiency caused by a beam distribution and a reflection characteristic of the light emitting device 100.

[0127] The adhesive layer 440 may be disposed around the light shielding portion 425. The adhesive layer 440 may be disposed between the resin layer 420 and the diffusion layer 430. The adhesive layer 440 may be disposed on the upper surface of the resin layer 420 in a region where the light shielding portion 425 is not disposed. The adhesive layer 440 may include a light-transmitting adhesive material. The adhesive layer 440 may bond the resin layer 420 and the diffusion layer 430 to each other.

[0128] Fig.12 is shown along Figure 5 Another cross-sectional view of the section cut through the line A-A'. Fig.12 In the description of the present invention, description of the same and similar components as those of the above-mentioned lighting module is omitted, and the same reference numerals are assigned to the same and similar components.

[0129] refer to Fig.12 , a plurality of light emitting devices 100 may be arranged on the substrate 401. The plurality of light emitting devices 100 may be top-view types electrically connected to the substrate 401. The plurality of light emitting devices 100 may be arranged on the substrate 401 at set intervals. For example, the plurality of light emitting devices 100 may be arranged at equal intervals in the first direction. In addition, the plurality of light emitting devices 100 may be arranged at equal intervals in the second direction.

[0130] Therefore, the lighting module 400 including the plurality of light emitting devices 100 may emit light as a surface light source. The lighting module 400 may emit light in a direction of an upper portion of the opening of the housing 300.

[0131] Fig.13 is a front view showing a light emitting device on a substrate in a lighting module according to an embodiment. Fig.14 yes Fig.13 Side view of a light emitting device.

[0132] refer to Fig.13 and Fig.14 The light emitting device 100 includes: a body 10 having a cavity 20; a plurality of lead frames 30 and 40 in the cavity 20; and a light emitting chip 71 disposed on at least one of the plurality of lead frames 30 and 40. The light emitting device 100 may be implemented as a side view type package.

[0133] The body 10 may include a cavity 20 in which the lead frames 30 and 40 are exposed at the bottom. The plurality of lead frames 30 and 40 are divided into, for example, first and second lead frames 30 and 40 and are bonded to the body 10.

[0134] The body 10 may be formed of an insulating material. The body 10 may be formed of a reflective material. The body 10 may be formed of a material having a reflectivity higher than a transmittance for a wavelength emitted from the light-emitting chip, for example, a material having a reflectivity of 70% or more. When the reflectivity is 70% or more, the body 10 may be defined as a non-transmissive material or a reflective material. The body 10 may be formed of a resin-based insulating material, for example, a resin material such as polyphthalamide (PPA). The body 10 may be formed of a silicone-based, epoxy-based, or thermosetting resin including a plastic material or a highly heat-resistant and light-resistant material. The body 10 includes a white-based resin. Anhydrides, antioxidants, demolding materials, light reflectors, inorganic fillers, curing catalysts, light stabilizers, lubricants, and titanium dioxide may be selectively added to the body 10. The body 10 may be molded by at least one selected from the group consisting of epoxy resin, modified epoxy resin, silicone resin, modified silicone resin, acrylic resin, and polyurethane resin. For example, an epoxy resin composition formed by adding an epoxy resin composed of triglycidyl isocyanurate, hydrogenated bisphenol A diglycidyl ether, etc. and an anhydride composed of hexahydrophthalic anhydride, 3-methylhexahydrophthalic anhydride, 4-methylhexahydrophthalic anhydride, etc., and 1,8-diazabicyclo (5,4,0) undecene-7 (DBU) as a curing agent, ethylene glycol as a co-catalyst, titanium oxide pigment, and glass fiber to the epoxy resin, partially cured by heating, and a solid epoxy resin composition is obtained by curing and forming the B stage, and the present invention is not limited thereto. The body 10 may be appropriately mixed with at least one selected from the group consisting of a diffuser, a pigment, a fluorescent material, a reflective material, a light-shielding material, a light stabilizer, and a lubricant.

[0135] The body 10 may include a reflective material, for example, a resin material to which a metal oxide is added, and the metal oxide may include TiO 2 、SiO 2 and Al 2 O 3 At least one of. The body 10 can effectively reflect incident light. As another example, the body 10 can be formed of a light-transmitting resin material or a resin material having a phosphor that converts the wavelength of incident light. The bottom of the body 10 can be a side surface corresponding to the substrate 401.

[0136] The first lead frame 30 includes a first lead portion 31 disposed on the bottom of the cavity 20, a first bonding portion 32 extending outside the body 10, and a first heat dissipation portion 33. The first bonding portion 32 is bent from the first lead portion 31 in the body 10 and protrudes to the outside of the body, and the first heat dissipation portion 33 can be bent from the first bonding portion 32.

[0137] The second lead frame 40 includes a second lead portion 41 disposed at the bottom of the cavity 20, a second bonding portion 42 disposed outside the body 10, and a second heat dissipation portion 43. The second bonding portion 42 may be bent from the second lead portion 41 in the body 10, and the second heat dissipation portion 43 may be bent from the second bonding portion 42.

[0138] Here, for example, the light emitting chip 71 may be disposed on the first lead portion 31 of the first lead frame 30 and connected to the first lead portion 31 and the second lead portion 41 by a wire, or may be connected to the first lead portion 31 and may be connected to the second lead portion 41 by a wire. The light emitting chip 71 may be a horizontal chip, a vertical chip, or a chip having a through-hole structure. The light emitting chip 71 may be mounted in a flip chip manner. The light emitting chip 71 may selectively emit light in the wavelength range from ultraviolet light to visible light. For example, the light emitting chip 71 may emit light having an ultraviolet or blue peak wavelength. The light emitting chip 71 may include at least one of a II-VI compound and a III-V compound. The light emitting chip 71 may be formed, for example, of a compound selected from the group consisting of GaN, AlGaN, InGaN, AlInGaN, GaP, AlN, GaAs, AlGaAs, InP, and mixtures thereof.

[0139] One or more light emitting chips 71 may be disposed in the cavity 20 and emit light with maximum intensity in the direction of the central axis Y0 .

[0140] One or more light emitting chips disposed in the cavity 20 of the light emitting device 100 according to the embodiment may be provided. The light emitting chip may be selected from, for example, a red LED chip, a blue LED chip, a green LED chip, and a yellow-green LED chip.

[0141] The molding member 80 is disposed in the cavity 20 of the body 11, and the molding member 80 includes a light-transmitting resin such as silicone resin or epoxy resin, and can be formed as a single layer or multiple layers. A phosphor for changing the wavelength of light emitted from the molding member 80 or the light-emitting chip 71 may be included, and the phosphor excites a portion of the light emitted from the light-emitting chip 71 and emits light with different wavelengths. The phosphor may be selectively formed of quantum dots, YAG, TAG, silicate, nitride, and oxynitride materials. The phosphor may include at least one of a red phosphor, a yellow phosphor, and a green phosphor, but is not limited thereto. The exit surface 81 of the molding member 80 may be formed in a planar shape, a concave shape, a convex shape, etc., but is not limited thereto. As another example, a light-transmitting film having a phosphor may be provided on the cavity 20, but the embodiment is not limited thereto.

[0142] A lens may be further formed on an upper portion of the body 10 , and the lens may include a structure of a concave lens and / or a convex lens and may adjust light distribution of light emitted by the light emitting device 100 .

[0143] Semiconductor devices such as a light receiving device and a protection device may be mounted on the body 10 or any one of the lead frames, and the protection device may be implemented as a thyristor, a Zener diode, or a TVS (Transient Voltage Suppression). The Zener diode protects the light emitting chip from electrostatic discharge (ESD).

[0144] At least one or more light emitting devices 100 are disposed on the substrate 401, and the reflective member 410 is disposed around the lower portion of the light emitting device 100. The first and second lead portions 33 and 43 of the light emitting device 100 are bonded to the pads 403 and 405 of the substrate 401 using solder or conductive tape as the conductive adhesive members 203 and 205.

[0145] The optical assembly 10 according to the embodiment can be used as a rearview mirror assembly of a vehicle. For example, the optical assembly 10 can be arranged on the left rearview mirror and the right rearview mirror of the vehicle to provide the driver with vehicle information located at the rear side.

[0146] Fig.15 is an exploded perspective view of a rearview mirror assembly according to an embodiment. Fig.16 is a cross-sectional view of a rearview mirror assembly according to an embodiment. In addition, Fig.17 is a top view of a blocking member according to an embodiment.

[0147] exist Figures 15 to 17 In the description, the structure of the optical assembly 10 applied to the left rearview mirror adjacent to the driver's seat will be described. In the case of the right rearview mirror adjacent to the passenger seat, the components of the optical assembly 10 are symmetrical to each other in the same shape, so for ease of description, the structure applied to the left rearview mirror adjacent to the driver's seat will be centered.

[0148] refer to Figures 15 to 17 , the rearview mirror assembly 2000 may include a cover housing 810 , a mirror member 820 , and an optical assembly 10 .

[0149] The cover housing 810 may be exposed to the outside of the vehicle. For example, the cover housing 810 may be a cover of a rearview mirror disposed on the left side of the vehicle and the right side of the vehicle, respectively. The cover housing 810 may include a material having a predetermined rigidity and reliability. The cover housing 810 may include a material capable of maintaining reliability from the outside in a vehicle stop or driving environment.

[0150] The cover housing 810 may include one side opened and an accommodation space 805 therein. The cover housing 810 may accommodate the optical assembly 10 and the mirror member 820.

[0151] Mirror member 820 can be arranged in the accommodation space 805 of cover housing 810. Mirror member 820 can be arranged so that the bottom surface 821 of mirror member 820 faces the accommodation space 805. The upper surface 822 of mirror member 820 can be exposed to the outside. The bottom surface 821 and the upper surface 822 of mirror member 820 can be arranged as at least one of a plane and a curved surface. Mirror member 820 can be a translucent member including a mirror or a display. Mirror member 820 can transmit the light emitted from optical assembly 10. For example, a partial area of ​​mirror member 820, such as an area overlapping with optical assembly 10, can transmit the light emitted from optical assembly 10.

[0152] The optical assembly 10 may be disposed in the accommodation space 805 of the cover housing 810. The optical assembly 10 may be disposed between the mirror member 820 and the cover housing 810. For example, the optical assembly 10 may be disposed on a bottom surface 821 of the mirror member 820 facing the accommodation space 805 of the cover housing 810. The optical assembly 10 may emit light in the direction of the opening area of ​​the cover housing 810. The optical assembly 10 may emit light toward the bottom surface 821 of the mirror member 820.

[0153] In this case, the height between the lighting module 400 and the mirror member 820 can be changed. The vertical direction (V axis direction) height between the upper surface of the lighting module 400 and the lower surface 821 of the mirror member 820 can be increased in the direction from the first inner surface IS1 to the second inner surface IS2. In addition, although not shown in the figure, the vertical (V axis direction) height between the upper surface of the lighting module 400 and the lower surface 821 of the mirror member 820 can be reduced in the direction from the third inner surface IS3 to the fourth inner surface IS4. And, the vertical height between the upper surface of the lighting module 400 and the lower surface 821 of the mirror member 820 can be increased in the direction from the second intersection P2 of the lighting module 400 to the fifth side surface S5.

[0154] The blocking member 700 may be disposed on the optical assembly 10. The blocking member 700 may be disposed between the optical assembly 10 and the mirror member 820. The blocking member 700 may be disposed in a region overlapping the optical assembly 10. The blocking member 700 may directly contact a bottom surface 821 of the mirror member 820.

[0155] The blocking member 700 may include an opening area 710 and a non-transmission area 720 .

[0156] The opening area 710 may be an area through which light emitted from the optical assembly 10 is transmitted. That is, the light emitted from the optical assembly 10 may be emitted toward the direction of the mirror member 820 through the opening area 710 and may be provided to the outside.

[0157] In addition, the non-transmission area 720 may be an area other than the opening area 710, and may be an area through which light emitted from the optical assembly 10 is not transmitted. For example, the non-transmission area 720 may be implemented using black or white ink.

[0158] That is, the opening area 710 may be an effective area through which light is transmitted, and the non-transmission area 720 may be an ineffective area through which light is not transmitted.

[0159] In this case, the light emitting device 100 of the optical assembly 10 may be disposed in a region overlapping the blocking member 700 in a vertical direction (V-axis direction). Here, the vertical direction (V-axis direction) may refer to a height direction of the housing 300.

[0160] In detail, the light emitting device 100 may be disposed in a region not overlapping with the opening region 710 of the blocking member 700 in the vertical direction (V-axis direction), and may overlap with the non-transmission region 720 in the vertical direction.

[0161] In addition, the opening area 710 may be provided in an area overlapping with the plurality of points 411 of the reflective member 410 in the vertical direction (V-axis direction). For example, the opening area 710 may vertically overlap with the area R1 where the plurality of points 411 are provided. In this case, light emitted from the light emitting device 100 may be reflected by the points 411 to be efficiently emitted in the direction of the opening area 710. Therefore, the loss of light emitted from the optical assembly 10 may be minimized.

[0162] In addition, when the optical component 10 includes Fig.10 When the light shielding portion 425 is shown, the light shielding portion 425 may be disposed in an area that does not overlap with the opening area 710 of the blocking member 700 in the vertical direction (V-axis direction), and may vertically overlap with the non-transmission area 720. Therefore, the light emitted from the light emitting device 100 may be guided to be emitted in the direction of the opening area 710.

[0163] Therefore, in the embodiment, the loss of light emitted from the light emitting device 100 may be minimized, and the direction and brightness value of light emitted to the outside of the mirror member 820 through the opening area 710 may be controlled.

[0164] The rearview mirror assembly 2000 may include an indicator 850. The indicator 850 may have a shape such as a logo, text, or icon. The indicator 850 may be formed on the mirror member 820. In detail, the indicator 850 may be formed in a region of the mirror member 820 that vertically overlaps with the opening region 710 of the blocking member 700. The indicator 850 may vertically overlap with the region R1 where the plurality of dots 411 are provided. The indicator 850 may be provided as an opening in the mirror member 820 or may be implemented using colored ink.

[0165] Therefore, light emitted from the optical assembly 10 may pass through the opening area 710 and the indication portion 850 , and the shape of the indication portion 850 may be visually recognized from the outside of the mirror member 820 .

[0166] In addition, the indicator portion 850 may be subjected to a haze treatment. Therefore, when light is not emitted from the optical component 10, the optical component 10 is not seen from the outside of the mirror member 820.

[0167] In addition, although not shown in the drawings, an indication portion 850 may be formed on the blocking member 700. In detail, the indication portion 850 may be formed in the opening region 710 of the blocking member 700. Therefore, light emitted from the optical assembly 10 may pass through the indication portion 850 formed in the opening region 710, and the shape of the indication portion 850 may be visually recognized from the outside of the mirror member 820.

[0168] In addition, although not shown in the drawings, an indication portion 850 may be formed on the mirror member 820 and the blocking member 700. In detail, the indication portion 850 may be formed in the opening region 710 of the blocking member 700 and in a region of the mirror member 820 corresponding to the opening region 710, respectively. Therefore, the shape of the indication portion 850 visually recognized from the outside of the mirror member 820 may have a three-dimensional effect.

[0169] The rearview mirror assembly 2000 may include a sensing unit (not shown) and a control unit (not shown).

[0170] The sensing unit may include radar, laser, sound wave, image sensor, etc., and may be disposed at the rear and / or side of the vehicle. The sensing unit may detect another vehicle located at the rear and / or side of the vehicle.

[0171] The control unit is connected to the sensing unit and can control the operation of the optical assembly 10. For example, when there is another vehicle at the rear side of the vehicle, the sensing unit can detect information about the vehicle. Thereafter, the sensing unit can provide the sensed information to the control unit. Subsequently, the control unit can apply a signal for light emission to the optical assembly 10. Therefore, the driver of the vehicle can visually recognize the shape of the sign and / or icon displayed on the upper surface 822 of the mirror member 820 through the optical assembly 10 and the blocking member 700, and can provide information about the presence or absence of another vehicle at the rear side of the vehicle.

[0172] In addition, when other vehicles disappear from the side and rear of the vehicle that the driver is riding in, the sensing unit can detect information about other vehicles. Thereafter, the sensing unit can provide the sensed information to the control unit, and the control unit can apply a signal for light emission off to the optical assembly 10.

[0173] In this case, the lighting module 400 according to the embodiment may be inclined. In detail, an upper surface of the optical assembly 10 may contact the blocking member 700 , and an upper surface of the blocking member 700 may contact the bottom surface 821 of the mirror member 820 .

[0174] Therefore, the lighting module 400 of the optical assembly 10 can be arranged to be inclined relative to the bottom surface 821 of the mirror member 820. In detail, based on the direction from the first inner surface IS1 toward the second inner surface IS2, the lighting module 400 can be inclined at a first inclination angle a1. In addition, the lighting module 400 can be inclined at a second inclination angle a2 from the third inner surface IS3 toward the fourth inner surface IS4. That is, the lighting module 400 can be inclined in the direction of the fifth inner surface IS5 at the first intersection P1 of the housing 300. In more detail, the bottom surface 310 of the housing 300 can be inclined as described above, and the lighting module 400 and the optical member 500 disposed on the bottom surface 310 can have an inclined shape inclined at an inclination angle within the above range.

[0175] Therefore, the rearview mirror assembly 2000 according to the embodiment minimizes light loss and maximizes the amount of light emitted through the mirror member 820, and can control the exit direction of the emitted light and the brightness value of the light according to the exit direction.

[0176] Fig.18 is a diagram for explaining the exit angle of light emitted from the rearview mirror assembly according to an embodiment. Fig.18 In the description, the case where the rearview mirror on the left side is adjacent to the driver's seat will be described. In the case of the rearview mirror on the right side adjacent to the passenger seat, since the components including the optical assembly 10 are symmetrical with each other in the same shape, for ease of description, the structure applied to the rearview mirror on the left side will be centered.

[0177] refer to Fig.18 , the rearview mirror assembly 2000 according to the embodiment can provide the driver with information about the vehicle located at the rear side. For example, in the area overlapping with the optical assembly 10, the first area R1 and the second area R2 can be divided based on a virtual line L1 extending in a direction perpendicular to the extending direction of the rearview mirror assembly 2000. Here, the first area R1 may be an area where the driver 1 is located, and the second area R2 may be an area where another vehicle 2 or an object located at the rear side of the vehicle in which the driver 1 is riding is located.

[0178] In the rearview mirror assembly 2000 according to the embodiment, when another vehicle 2 is located in the second region R2 , light emitted from the optical assembly 10 may be emitted to the outside through the blocking member 700 and the mirror member 820 .

[0179] In this case, the lighting module 400 may be arranged to be inclined relative to the bottom surface 310 of the mirror member 820 as described above. For example, the lighting module 400 may be arranged to be inclined in a direction corresponding to the first region R1 where the driver 1 is located. Therefore, the light emitted from the rearview mirror assembly 2000 through the mirror member 820 may be emitted in a set direction and may have different brightness values ​​according to the emission direction.

[0180] For example, the brightness value of light emitted in the direction of the first region R1 where the driver 1 is located may be different from the brightness value of light emitted in the direction of the second region R2 where another vehicle 2 is located. In detail, the brightness value of light emitted in the direction of the first region R1 may be greater than the brightness value of light emitted in the direction of the second region R2.

[0181] Therefore, the rearview mirror assembly 2000 according to the embodiment can provide high brightness light to the driver 1 located in the first area R1. In addition, the rearview mirror assembly 2000 can provide relatively low brightness light to another vehicle 2 located in the second area R2 behind the driver 1's vehicle.

[0182] Therefore, the driver 1 can effectively visually recognize the shape of the indicator 850. In addition, it is possible to minimize the light emitted from the rearview mirror assembly 2000 toward the direction of another vehicle 2 located behind the driver 1. Therefore, it is possible to minimize or prevent the driver of the other vehicle 2 from being disturbed by the light.

[0183] The features, structures, effects, etc. described in the above embodiments are included in at least one embodiment of the present invention and are not necessarily limited to only one embodiment. In addition, the features, structures, effects, etc. shown in each embodiment can be combined or modified by a person skilled in the art to which the embodiment belongs for other embodiments. Therefore, the contents related to these combinations and modifications should be interpreted as being included in the scope of the present invention.

[0184] In addition, although the embodiments have been described above, these embodiments are merely examples and do not limit the present invention, and a person skilled in the art to which the present invention belongs may make various modifications and applications not shown above within the scope of the essential features of the present embodiment. For example, the various components specifically shown in the embodiments may be modified and implemented. And the differences associated with these modifications and applications should be interpreted as being included within the scope of the present invention defined in the appended claims.

Claims

1. An optical component, include: a housing having an inclined bottom surface, a plurality of inner surfaces surrounding the outer circumference of the bottom surface, and a receiving space with an upper opening; a lighting module, the lighting module being disposed on the inclined bottom surface; an optical component, wherein the optical component is disposed on the lighting module; as well as a cover member disposed on the optical member, Wherein, the lighting module comprises: a substrate, the substrate being obliquely disposed on the inclined bottom surface; at least one light emitting device, the at least one light emitting device being disposed on the substrate; and a resin layer that seals the light emitting device and the substrate, wherein the upper surface of the resin layer emits light by diffusing light emitted from the light emitting device, wherein the plurality of inner surfaces include a first inner surface adjacent to the light emitting device, a second inner surface facing the first inner surface, and a third inner surface and a fourth inner surface facing each other and disposed between the first inner surface and the second inner surface, wherein a height between the bottom surface of the housing and an upper surface of the housing increases from the first inner surface toward the second inner surface, and decreases from the third inner surface toward the fourth inner surface, wherein the cover member and the optical member are arranged in the accommodation space, wherein, based on a direction from the first inner surface toward the second inner surface of the housing, the upper surface of the optical member is inclined at a first inclination angle relative to the upper surface of the housing, and Wherein, based on a direction from the third inner surface toward the fourth inner surface of the housing, a lower surface of the cover member is inclined at a second inclination angle relative to an upper surface of the cover member.

2. The optical component according to claim 1, in, The inclined bottom surface has the first inclination angle relative to the upper surface of the housing based on the direction from the first inner surface toward the second inner surface of the housing, Wherein, the first inclination angle is 15 degrees to 40 degrees.

3. The optical component according to claim 2, in, The lighting module has a constant thickness, and is disposed on the bottom surface at the first inclination angle relative to the upper surface of the housing based on the direction from the first inner surface toward the second inner surface of the housing.

4. The optical component according to claim 3, in, Based on the direction from the first inner surface toward the second inner surface of the housing, the optical axis of the light emitting device is inclined at the first inclination angle with respect to the upper surface of the housing.

5. The optical component according to claim 1, in, The lighting module includes a reflective member disposed between the substrate and the resin layer. wherein the reflective member comprises an opening, and the lower portion of the light emitting device is disposed in the opening, Wherein, the reflective member includes a plurality of points protruding from an upper surface of the reflective member.

6. The optical component according to any one of claims 1 to 5, in, The inner surface of the housing includes a fifth inner surface disposed between the second inner surface and the third inner surface and a sixth inner surface disposed between the second inner surface and the fourth inner surface. wherein the height between the bottom surface of the housing and the upper surface of the housing is highest in a region adjacent to the fifth inner surface, wherein the height between the bottom surface of the housing and the upper surface of the housing is lowest at a first intersection point defined by an intersection point of the first inner surface and the fourth inner surface, Wherein, the planar shape of the lighting module is the same as the shape of the bottom surface of the housing.

7. The optical component according to any one of claims 1 to 5, in, The upper surface of the cover member is arranged on the same plane as the upper surface of the housing, wherein the thickness between the upper surface and the lower surface of the cover member becomes thinner from the third inner surface toward the fourth inner surface, Wherein, the second inclination angle is 15 degrees to 40 degrees.

8. The optical component according to any one of claims 1 to 5, in, The material of the housing or the surface of the accommodation space includes black.

9. A rearview mirror assembly, include: a blocking member disposed on the optical assembly and comprising an opening area; as well as a mirror member disposed on the blocking member, Wherein, the optical component comprises: a housing having an inclined bottom surface, a plurality of inner surfaces surrounding the outer circumference of the bottom surface, and a receiving space with an upper opening; a lighting module, the lighting module being disposed on the inclined bottom surface; an optical component, the optical component being disposed on the lighting module; and a cover member disposed on the optical member, Wherein, the lighting module comprises: a substrate, the substrate being obliquely disposed on the inclined bottom surface; at least one light emitting device, the at least one light emitting device being disposed on the substrate; and a resin layer that seals the light emitting device and the substrate, wherein the upper surface of the resin layer emits light by diffusing light emitted from the light emitting device, wherein the plurality of inner surfaces include a first inner surface adjacent to the light emitting device, a second inner surface facing the first inner surface, and a third inner surface and a fourth inner surface facing each other and disposed between the first inner surface and the second inner surface, wherein a height between the bottom surface of the housing and an upper surface of the housing increases from the first inner surface toward the second inner surface, and decreases from the third inner surface toward the fourth inner surface, wherein a partial area of ​​the mirror member overlaps with the optical component and transmits light emitted from the optical component, wherein the cover member and the optical member are arranged in the accommodation space, wherein, based on a direction from the first inner surface toward the second inner surface of the housing, the upper surface of the optical member is inclined at a first inclination angle relative to the upper surface of the housing, and Wherein, based on a direction from the third inner surface toward the fourth inner surface of the housing, a lower surface of the cover member is inclined at a second inclination angle relative to an upper surface of the cover member.

10. The rearview mirror assembly according to claim 9, in, The inclined bottom surface has the first inclination angle relative to the upper surface of the housing based on the direction from the first inner surface toward the second inner surface of the housing, and Wherein, the first inclination angle is 15 degrees to 40 degrees.

11. A rearview mirror assembly according to claim 9 or 10, in, The lighting module includes a reflective member disposed on the substrate, Wherein, the reflective member comprises: an opening, in which the lower portion of the light emitting device is disposed; and A plurality of points protrude from an upper surface of the reflective member.

12. The rearview mirror assembly according to claim 11, further comprising: include: an indication portion formed in at least one of the opening region of the blocking member and a region of the mirror member overlapping with the opening region, and Wherein, the indicating portion is a rearview mirror assembly arranged in an area overlapping with the plurality of points.

13. The rearview mirror assembly according to claim 11, in, The lighting module includes a light shielding portion provided on the resin layer, and The light shielding portion is arranged in a region that does not overlap with the opening region. wherein the thickness between the upper surface and the lower surface of the cover member becomes thinner from the third inner surface toward the fourth inner surface, The inner surface of the housing includes a fifth inner surface disposed between the second inner surface and the third inner surface and a sixth inner surface disposed between the second inner surface and the fourth inner surface. wherein the height between the bottom surface of the housing and the upper surface of the housing is highest in a region adjacent to the fifth inner surface, and The height between the bottom surface of the shell and the upper surface of the shell is lowest at a first intersection point defined by an intersection point of the first inner surface and the fourth inner surface.

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