Optical module, lamp device and motor vehicle

Abstract

The invention provides an optical module, a lamp device and a motor vehicle. The optical module comprises: a substrate (120); a plurality of light source assemblies (130) mounted on a surface of the substrate, each light source assembly being independently controllable to be selectively turned on or off; the grating component (140) is arranged on the surface of the substrate and comprises a plurality of grids arranged in an array mode, each grid defines a cavity (141), and at least one light source assembly is positioned in the cavity of each grid; and the light shaping element (150) is arranged on the light emitting side of the plurality of light source assemblies so as to shape the light emitted from the light source assemblies to have a desired light distribution.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of lighting and / or signaling, and more particularly, to an optical module capable of providing a pixelated lighting effect, and a lamp device and a motor vehicle equipped with such an optical module. Background Art

[0002] In many fields, various lighting or signaling devices are known for providing lighting or signaling light. For example, in motor vehicles, headlights are used to provide lighting or signaling functions to ensure safe driving, or lamps with functions such as lighting, signaling, and atmosphere decoration are installed inside or outside spaces such as vehicle cabins, engine cabins, buildings, and rooms.

[0003] As a lighting or signal indication device, the pixelated lamp device can form an imaging lighting effect similar to an image, and can further form various forms of light. It is relatively convenient to set and adjust the light shape, and is particularly suitable for the lighting and signal indication fields of motor vehicles to improve driving safety and visibility. In conventional technologies, although the use of digital micromirror devices (DMD), DLP or LCD technology can provide rich pixelated projection patterns, they are quite expensive. In addition, in some traditional pixelated lamp modules using LED arrays, there are usually problems such as light crosstalk, poor uniformity, large pixel pitch, and low resolution. Summary of the invention

[0004] An object of the present disclosure is to solve or overcome at least one of the above and other problems and deficiencies in the prior art.

[0005] According to one aspect of the present disclosure, there is provided an optical module, comprising: at least one substrate; a plurality of light source assemblies mounted on a surface of the substrate, at least some of the plurality of light source assemblies being independently controllable to be selectively switched on or off; a grille member disposed on the surface of the substrate, the grille member comprising a plurality of grids arranged in an array, each grid defining a cavity, at least one of the light source assemblies being positioned in the cavity of each grid; and a light shaping element disposed on a light-emitting side of the plurality of light source assemblies to shape light emitted from the plurality of light source assemblies into having a desired light distribution.

[0006] In some embodiments, the grid members are flexible or bendable.

[0007] In some embodiments, the grille member is in close contact with the substrate and the light shaping element.

[0008] In some embodiments, the optical module is flexible or bendable;

[0009] The substrate includes a flexible circuit board or a bendable circuit board;

[0010] The light shaping element is flexible or bendable;

[0011] Each of the light source assemblies includes one or more LEDs.

[0012] In some embodiments, the material of the substrate includes FR4;

[0013] The thickness of the substrate is less than 1 mm;

[0014] The base is a one-piece piece.

[0015] In some embodiments, the grille member (140) includes partition walls (142) defining the plurality of grids, the partition walls (142) being disposed and extending between the substrate (120) and the light-forming element (150); and

[0016] The wall surface (1421) of the partition wall (142) extends perpendicularly or obliquely to the surface of the substrate, and the wall surface (1421) of the partition wall is planar or curved.

[0017] In some embodiments, a width dimension (W) of an end of the partition wall away from the surface of the substrate in a direction perpendicular to the first direction (Y) is less than or equal to 1 mm.

[0018] In some embodiments, a reflective layer is disposed on the wall surface (1421) of the partition wall (142); or

[0019] The partition wall (142) is black.

[0020] In some embodiments, the material of the grid member (140) includes at least one of silicone, TPU, TPV and EPDM.

[0021] In some embodiments, a cross-sectional shape of each grid in a plane perpendicular to the thickness direction of the grid member includes at least one of a circle, a polygon, a heart, a five-pointed star, a six-pointed star, and an arrow.

[0022] In some embodiments, each grid has an opening away from the substrate (120) defined by partition walls (142) of the grid, and

[0023] The light shaping element (150) includes a first optical film (151) or a lens (154), wherein the first optical film or the lens is positioned on the partition wall and at least covers the openings of the plurality of grids so as to directly face the light source assembly positioned in the cavity of each of the grids, and the first optical film or the lens is configured to diffuse and homogenize the light emitted from the light source assembly, and / or to deflect the light emitted from the light source assembly.

[0024] In some embodiments, a pattern is formed on the first optical film (151), and the pattern is made of an opaque material to form a desired light distribution;

[0025] The shape of the grid of the pattern is consistent with the shape of the grid of the grille component (140), and the grid of the pattern is arranged in a one-to-one correspondence with the grid of the grille component (140); or, the overall shape of the plurality of grids of the pattern is consistent with the shape of a grid of the grille component (140).

[0026] In some embodiments, when viewed from a side of the first optical film facing away from the partition walls, the partition walls are blocked by the opaque material formed into the pattern.

[0027] In some embodiments, the light shaping element (150) further comprises a second optical film (152), the second optical film being arranged on a side of the first optical film away from the partition wall;

[0028] There is a gap (G) between the first optical film and the second optical film, or the first optical film and the second optical film are attached to each other.

[0029] In some embodiments, the second optical film is configured to further diffuse and homogenize light from the first optical film and / or redirect light from the first optical film;

[0030] Alternatively, the second optical film is configured to compress and protect the first optical film, and the second optical film has a metallic texture;

[0031] Alternatively, the second optical film includes a PDLC film, which is transparent when powered on and opaque when powered off.

[0032] In some embodiments, at least one of the first optical film and the second optical film is formed with a microstructure, and the microstructure is formed on the light incident surface, the light emitting surface and / or the interior of the optical film;

[0033] The microstructures are configured to diffusely shape light passing through the at least one optical film to form a desired pattern in the distribution of light exiting the at least one optical film.

[0034] In some embodiments, the optical module further comprises:

[0035] a light projection element (160) disposed on a side of the light shaping element (150) away from the light source assembly (130), wherein the light shaped by the light shaping element is projected to a target position by the light projection element;

[0036] Wherein, the light projection element comprises a lens.

[0037] In some embodiments, the grid member (140) has a uniform thickness;

[0038] The partition wall (142) of the grid component (140) is bendable and elastically deformable;

[0039] The partition wall (142) comprises a first side wall (1421) and a second side wall (1422) which are connected to each other at the upper ends, the lower ends of the first side wall and the second side wall are spaced apart, a partition groove (1423) is provided between the first side wall and the second side wall, and the partition wall is in a "V" shape.

[0040] In some embodiments, the thickness (h) of the spacing groove (1423) is greater than or equal to 1 / 2 of the thickness (H) of the spacing wall (142);

[0041] The distance (d) between the lower ends of the first side wall and the second side wall is greater than or equal to 1 / 4 of the thickness (h) of the spacing groove (1423).

[0042] In some embodiments, the grille component (140) includes a plurality of positioning protrusions (145), which are arranged on the lower surface of the grille component and close to the edge of the lower surface. The positioning protrusions are used to be inserted into the positioning holes (121) on the surface of the base (120), thereby pre-installing the grille component (140) on the base (120).

[0043] According to another aspect of the present disclosure, an embodiment further provides a lamp device, comprising a housing and an optical module described in any embodiment of the present disclosure, the optical module being at least partially mounted in the housing. In some embodiments, the lamp device comprises at least one of a lighting lamp, a signal indicator lamp, and an atmosphere lamp for a motor vehicle.

[0044] According to yet another aspect of the present disclosure, an embodiment further provides a motor vehicle, which includes the optical module or the lamp device described in any one of the embodiments of the present disclosure.

[0045] Other objects and advantages of the present disclosure will be apparent from the following detailed description of the present disclosure with reference to the accompanying drawings, and will help to have a comprehensive understanding of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] These and / or other aspects, features and advantages of the present disclosure will become apparent and readily understood from the following description of illustrative embodiments taken in conjunction with the accompanying drawings, in which:

[0047] Figure 1 is a schematic diagram showing a structure of a lamp device according to an exemplary embodiment of the present disclosure;

[0048] Figure 2 is a perspective view schematically showing a structure of a lamp device according to an exemplary embodiment of the present disclosure, with a light projecting element and a light shaping element removed;

[0049] Figure 3 is an exploded view showing the structure of a lamp device according to an exemplary embodiment of the present disclosure;

[0050] Figure 4 is a perspective view showing an assembled state of an optical module according to an exemplary embodiment of the present disclosure;

[0051] Figure 5 is a cross-sectional view schematically showing a structure of a lamp device according to an exemplary embodiment of the present disclosure;

[0052] Figure 6 is a cross-sectional view schematically showing a structure of a portion of a lamp device according to another exemplary embodiment of the present disclosure;

[0053] Figure 7 is a schematic diagram showing an example of a pattern that may be projected by a lamp device according to an exemplary embodiment of the present disclosure;

[0054] Figure 8 shows a front view of a lamp device according to yet another embodiment of the present disclosure;

[0055] Fig. 9 Shows Figure 8 AA cross-section diagram;

[0056] Fig.10 Shows Figure 8 BB cross-section diagram;

[0057] Fig.11 Shows Fig.10 A partial enlarged view of E1;

[0058] Fig.12 Shows Figure 6 and Figure 8 A schematic diagram of the three-dimensional structure of the middle grille component from a top view;

[0059] Fig.13 Shows Fig.12A schematic diagram of the three-dimensional structure of the middle grille component when viewed from above;

[0060] Fig.14 Shows Fig.12 A top view of the middle grille member;

[0061] Fig.15 Shows Fig.14 A1-A1 is an enlarged view of a partial cross section of the middle grille component. DETAILED DESCRIPTION

[0062] The following will be described in detail with reference to the accompanying drawings. In this specification, the same or similar parts are indicated by the same or similar figure numbers. The following description of the embodiments of the present disclosure with reference to the accompanying drawings is intended to explain the overall disclosed concept of the present disclosure and should not be construed as a limitation of the present disclosure.

[0063] In addition, in the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, well-known structures and devices are embodied in a schematic manner to simplify the drawings.

[0064] Figure 1 A lamp device according to an exemplary embodiment of the present disclosure is schematically illustrated. Figure 2 A perspective view schematically shows the structure of a lamp device according to an exemplary embodiment of the present disclosure. Figure 1-2 As shown, the lamp device 100 includes a housing 110 , and the optical module may be at least partially mounted in the housing 110 , such as in a receiving space 111 of the housing 110 .

[0065] like Figure 1-7As shown, the optical module according to the exemplary embodiment of the present disclosure mainly includes at least one substrate 120, a light source assembly 130, a grille component 140 and a light shaping element 150, etc. In the present disclosure, the specific forms of the substrate 120 and the light source assembly 130 are not limited. For example, the substrate 120 can be a flexible substrate, such as a flexible circuit board or a bendable circuit board, the grille component 140 and the light shaping element 150 can be flexible or bendable, and the entire optical module can also be flexible or bendable to adapt to different installation spaces and form optical modules of various shapes. In addition, the flexible grille component 140 can have a thinner thickness. In some embodiments, the material of the substrate 120 includes FR4, and its thickness can be less than 1 mm. The substrate 120 can also be an integral piece. The entire substrate 120 is an integral piece, which can be bent at a certain angle, so as to form various shapes to meet the regulatory requirements for light output at various angles. Of course, in some application scenarios where bending is not required, a circuit board of ordinary thickness, such as a circuit board with a thickness of 1.6 mm, can also be used. In this case, the flexible or bendable grille member 140 can fit tightly with the substrate 120 and the light-forming element 150, thereby ensuring a close fit with the substrate 120 and the light-forming element 150, making the entire optical module structure more compact and having a better dustproof effect. Each light source assembly 130 may include one or more light-emitting diodes LED. A plurality of light source assemblies 130 are mounted on a surface of the substrate 120, and the grille member 140 is also disposed on the surface of the substrate 120 to surround the light source assembly 130. The grille member 140 includes a plurality of grids arranged in a matrix or array, each grid defining a cavity 141, and at least one light source assembly 130 is positioned in the cavity 141 of each grid. At least some of the multiple light source components 130 can be independently controlled. Preferably, each light source component 130 can be independently controlled to be selectively turned on (i.e., lit) or turned off (i.e., extinguished) (e.g., according to the needs of a specific pattern display), so that light emitted from the turned-on or lit light source component 130 can have a pixelated light distribution or lighting effect after passing through the corresponding grid or being limited or constrained by the grid component 140.

[0066] The light shaping element 150 may be arranged on the light emitting side of the light source assembly 130 or on the side of the light source assembly 130 facing away from the substrate 120 to shape the light emitted from the light source assembly 130 into a desired light distribution. In the present disclosure, as described below, such "shaping" includes but is not limited to diffusion, homogenization, steering, patterning, etc. of light. Thus, the light emitted from the optical module may have a pixelated and patterned distribution as a whole to provide desired functions such as lighting or signal indication.

[0067] In the illustrated embodiment, Figure 1 , Figure 3-6As shown, the optical module may further include a light projection element 160, which is disposed on a side of the light shaping element 150 away from the light source assembly 130, and the light shaped by the light shaping element 150 (such as a pixelated light beam with or without a pattern) is projected to a target position by the light projection element 160. In vehicle lamp applications, the light projection element 160 may be used as a light distribution lens or lampshade, including a lens, a prism, a reflector, a light guide, or a combination thereof. Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, the lamp device 100 may include a decorative plate or cover plate 170 having an opening, and the light projection element 160 is embedded in the opening of the cover plate 170 to cover the light shaping element 150. The cover plate 170 can be fixed to the housing 110 to hold the optical module in the housing 110. For example, the base 120 can be connected to the housing 110 via a fastener 171 (see Figure 5 ) is detachably fixed to the cover plate 170.

[0068] In such Figure 2 , Figure 3 as well as Figure 5-7 In the illustrated embodiment, the grid member 140 includes partition walls 142, which intersect each other to define a plurality of grids, each grid having an opening away from the substrate 120 defined by the partition walls 142, that is, each grid is closed by the substrate 120 at one end and is open at the other opposite end, so as to facilitate the light emitted by the light source assembly 120 positioned in the grid to exit. Illustratively, the wall surface 1421 of the partition wall 142 may extend perpendicularly or obliquely to the surface of the substrate 120, so that the light from the light source assembly 130 positioned in the cavity 141 of the grid is guided to exit along the spatial contour defined by the wall surface 1421 of the partition wall 142 of the grid without interfering or crosstalking with the light emitted by the light source assembly 130 in the adjacent grid, thereby each grid and the light source assembly 130 positioned in the grid jointly define a "pixel" for the exiting light, so that the optical module as a whole can exit a pixelated light beam.

[0069] The cross section of each grid, such as a cross section in a plane parallel to the surface of the substrate 120 or perpendicular to the thickness direction of the grid member (such as the Y direction in the figure), has a desired "pixel" shape, such as a circular shape, or a polygonal shape, such as a triangle, rectangle, square, diamond, pentagon, hexagon, etc., or can be customized or freely designed, such as Figure 7In the embodiment, the grid member 140 or at least its partition wall 142 can be made of a flexible material or a deformable material such as silicone, polyurethane elastomer (TPU, Thermoplastic Polyurethane), thermoplastic ethylene propylene diene monomer dynamically vulcanized elastomer (TPV, Thermoplastic Vulcanizate), ethylene propylene diene monomer (EPDM, Ethylene Propylene Diene Monomer), so that it is bendable and can adapt to different installation positions, especially in some non-planar or bent installation positions. The optical module of this embodiment can be adapted to make a 3D shape and emit light evenly, so that the light output of the optical module is more eye-catching and improves the driving safety of motor vehicles. The grid member or at least its partition wall is opaque to avoid crosstalk between the light of the light source assembly 130 in the adjacent grid. For example, the grid member 140 can be black, but in other embodiments, the grid member 140 can also be white or gray.

[0070] Exemplarily, the grid member 140 can be appropriately constructed (such as molded) to meet at least one of the following dimensions: the thickness dimension H of the partition wall 142 in the first direction Y (also referred to as the thickness direction of the grid member) perpendicular to the surface of the substrate 120 is less than or equal to 20 mm, or even less than or equal to 10 mm, and the minimum thickness can reach 0.5 mm, so that the thickness of the entire optical module is smaller and the structure is more compact; the width dimension W (i.e., the distance between adjacent grids, which can be regarded as the "pixel pitch") of the end (open end) of the partition wall 142 away from the surface of the substrate 120 in the direction perpendicular to the first direction Y (such as the X and Z directions in the figure) is less than or equal to 1 mm; the length dimension L (i.e., the length or width of the grid, which can be regarded as the "pixel pitch") of the end (open end) of the partition wall 142 away from the surface of the substrate 120 in the direction perpendicular to the first direction Y (such as the X and Z directions in the figure) is in the range of 3 mm to 20 mm, such as in the range of 5 mm to 10 mm. In addition, it is understood that the size, shape, number, etc. of the grid member and its grids can be appropriately customized or adjusted according to actual needs. Compared with the reference technology, a pixel pitch less than or equal to 1 mm can obtain better resolution and more uniform lighting effects.

[0071] In addition, a reflective layer may be provided on the wall surface 1421 of the cavity 141 of the grid facing the partition wall 142. The reflective layer may be, for example, a paint layer or an aluminum-plated layer. The reflective layer may reflect the light emitted by the light source assembly 130, so that more light is emitted from the opening of the grid, thereby improving the overall light effect of the optical module. Of course, in some embodiments, the reflective layer may not be provided. For example, the partition wall 142 may be provided in black. Black has a better hiding effect to avoid affecting the overall appearance of the optical assembly.

[0072] In such Figure 3-7 In the exemplary embodiment shown, the light shaping element 150 includes a first optical film 151, which covers the grille member 140. Specifically, the first optical film 151 can be positioned on the partition wall 142, such as contacting the open end of the partition wall 142, and at least covering the openings of the plurality of grids of the grille member 140, so as to (such as directly) face the light source assembly 130 positioned in the cavity 141 of each grid. The first optical film 151 can be a light diffusion film or a homogenizing film, which is used to diffuse and homogenize the light emitted from the light source assembly 120, or, as required, the first optical film 151 can also be a light deflecting film, which is used to turn or deflect the light emitted from the light source assembly 120. Due to the presence of the first optical film 151, when viewed from the side of the first optical film away from the partition wall 142, the partition wall 142 is blocked by the opaque material made into a pattern, and the partition wall 142 is invisible regardless of whether the light source assembly 130 is lit or extinguished. The light projecting element 160 may be disposed on a side of the first optical film 151 facing away from the grating member 140 and cover the first optical film 151 to project a pixelated light beam shaped by the grating member 140 and the first optical film 151 outwardly.

[0073] In some embodiments, a pattern may be provided on the first optical film 151, and the pattern is made of an opaque material to form a desired light distribution. The shape of the grid of the pattern is consistent with the shape of the grid of the grille member 140, and the grid of the pattern is arranged in a one-to-one correspondence with the grid of the grille member 140, and the pattern is opaque. Specifically, the pattern can be formed by black ink, thereby avoiding crosstalk between light on the first optical film 151 to form a desired light distribution. In some applications, the pattern can also meet specific modeling requirements. The pattern can be formed on the upper surface or the lower surface of the first optical film 151. In some embodiments, the overall shape of the multiple grids of the pattern can also be set to be consistent with the shape of a grid of the grille member 140, thereby further subdividing the pixels.

[0074] In such Figure 6In the illustrated embodiment, the light shaping element 150 may further include a second optical film 152, which is disposed on a side of the first optical film 151 away from the partition wall 142, and a gap G exists between the first optical film 151 and the second optical film 152. The existence of the gap G can further even out the light leaving the first optical film 151, and reduce or avoid the presence of obvious dark areas between the light beams emitted from each grid. In other embodiments, when such dark areas are not obvious, do not exist, or do not affect the overall light emitting effect, for example, when the width of the partition wall is small enough or the diffusion and evenness of the second optical film 152 are sufficient, the first optical film 151 and the second optical film 152 may be attached to each other, such as tightly attached without the gap G. The light projection element 160 may be disposed on a side of the second optical film 152 away from the first optical film 151 and cover the second optical film 152 to project outwardly the pixelated light beams formed by the grating member 140, the first optical film 151, and the second optical film 152. The second optical film 152 may be similar to or different from the first optical film 151 in terms of material, function, etc. For example, the second optical film 152 may be configured to further diffuse and homogenize the light from the first optical film, or to redirect the light from the first optical film. The second optical film 152 may also be formed with a pattern as described in the above embodiment.

[0075] As an example, at least one of the first optical film 151 and the second optical film 152 may be formed with a plurality of microstructures, such as micro-dimples, micro-protrusions or other light-guiding structures, which are constructed or arranged to diffuse and shape the light passing through the optical film to form a desired pattern symbol (e.g., such as Figure 7 The microstructure may be formed on the upper surface, i.e., the light emitting surface, or the lower surface, i.e., the light incident surface, of the first optical film 151, or on the upper surface, i.e., the light emitting surface, or the lower surface, i.e., the light incident surface, of the second optical film 152, or may be formed inside the first optical surface 151 and / or the second optical film 152.

[0076] In other embodiments, the second optical film 152 is configured to compress and protect the first optical film 151, so that the first optical film 151 has better installation quality and better stability, and avoids external pollution from causing adverse effects on the components inside the optical module. In addition, the second optical film 152 can have a metallic texture, making the appearance of the entire optical module more eye-catching and improving driving safety.

[0077] In other embodiments, the first optical film 151 may be a light diffusion film or a light deflection film, and the second optical film 152 may be a PDLC (polymer dispersed liquid crystal) film. The first optical film 151 and the second optical film 152 may be closely attached to each other without providing a gap G. The PDLC film is in an opaque state when the power is off, for example, in a frosted state, so that the internal structure of the optical module cannot be seen from the outside, for example, the grille member 140, the light source assembly 130 and the substrate 120 cannot be seen from the outside, thereby achieving a more beautiful appearance and conveniently protecting privacy. The PDLC film is in a transparent state when the power is on, maintaining the transparency of the optical module, thereby ensuring that the optical module performs a normal lighting function.

[0078] As an example, the light shaping element 150, such as the first optical film 151, the second optical film 152 and / or the light diffusing material 153, can be formed of at least one of materials such as polycarbonate (PC), polymethyl methacrylate (PMMA), polyvinyl chloride (PVC), polystyrene (PS), polyethylene terephthalate (PET), epoxy resin, etc., or may include a dimming film such as a PDLC film or other materials or structures capable of shaping or adjusting light distribution, but the present disclosure is not limited thereto.

[0079] Figure 8 shows a front view of a lamp device according to yet another embodiment of the present disclosure; Fig. 9 Shows Figure 8 AA cross-section diagram; Fig.10 Shows Figure 8 BB cross-section diagram; Fig.11 Shows Fig.10 Partially enlarged view E1.

[0080] like Figure 8-11As shown, in some other embodiments, the light shaping element 150 may include a lens 154, and the lens 154 is used to replace the first optical film 151, and the lens 154 is directly positioned on the partition wall 142 and at least covers the openings of the plurality of grids to directly face the light source assembly 130 positioned in the cavity 141 of each grid. Accordingly, the lens 154 is configured to diffuse and homogenize the light emitted from the light source assembly 130, and / or to redirect the light emitted from the light source assembly 130. The lens is usually hard and non-bendable, so in some application scenarios where a 3D light-emitting surface is required, a lens with a 3D light-emitting surface can be used, and the grid member 140 is bent into a state that matches the shape of the light-emitting surface of the lens 154, and pressed against the lens 154, thereby realizing the 3D modeling of the entire optical module. In addition, according to optical needs, other optical structures can also be set on the lens 154, so that the lens 154 has various functions similar to optical films, which will not be repeated here. Of course, in some embodiments, an optical film may be provided on the inner surface of the lens 154 by in-mold injection. The embodiments of the present application may only provide an optical film without providing a lens, or only provide a lens without providing an optical film, or provide both an optical film and a lens.

[0081] Fig.12 Shows Figure 6 and Figure 8 A schematic diagram of the three-dimensional structure of the middle grille component from a top view; Fig.13 Shows Fig.12 A schematic diagram of the three-dimensional structure of the middle grille component when viewed from above; Fig.14 Shows Fig.12 A top view of the middle grille member; Fig.15 Shows Fig.14 A1-A1 is an enlarged view of a partial cross section of the middle grille component.

[0082] like Figure 12-15As shown, the grille member 140 in some embodiments of the present application is soft, that is, the partition wall 142 of the grille member 140 is bendable and elastically deformable. The grille member 140 usually has a uniform thickness when not deformed, but can be deformed to a certain extent when required by the application to meet the shape requirements. In this embodiment, the partition wall 142 may include a first side wall 1421 and a second side wall 1422 connected to each other at the upper end, and the lower ends of the first side wall 1421 and the second side wall 1422 are spaced apart, that is, there is a spacing groove 1423 between the first side wall 1421 and the second side wall 1422, and the partition wall 142 is roughly "V" shaped. Due to the provision of the spacing groove 1423, the grille member 140 can be elastically deformed toward the spacing groove 1423. Preferably, the thickness h of the spacing groove 1423 can be set to be greater than or equal to 1 / 2 of the thickness H of the partition wall 142; the distance d between the lower ends of the first side wall 1421 and the second side wall 1422 is greater than or equal to 1 / 4 of the thickness h of the spacing groove 1423. Thus, the elastic deformation is ensured to have a certain range under the premise of structural stability. In some embodiments, some optical structures can also be set on the side of the partition wall 142 to guide the light emitted from the light source assembly 130 to a suitable angle.

[0083] The grille member 140 may include a plurality of positioning protrusions 145, which are disposed on the lower surface of the grille member 140 and close to the edge of the lower surface, such as at the four corners and the edges of the long sides of the lower surface of the grille member 140. Fig. 9 The positioning protrusion 145 is used to be inserted into the positioning hole 121 on the surface of the base 120, so that the grid component 140 can be pre-installed on the base 120, which is convenient for the subsequent installation process.

[0084] The embodiment of the present disclosure also provides a lamp device 100, which includes the optical module described in any embodiment of the present disclosure, and can provide pixelated light distribution with or without patterns or symbols. The lamp device can be used as a lighting or signal indication device, for example, it can be used as a lighting lamp, signal indicator light, atmosphere light, etc. of a motor vehicle or other means of transportation, and is used to project a desired pattern at a target location, such as on a road surface, a wall, inside a vehicle, or other desired locations (such as inside or outside a space such as a building or a room), for example, personalized patterns or dynamic effect patterns such as smiley faces, hearts, flowers, animals / plants, car logos, etc., vehicle driving related information such as vehicle speed, turn arrows, travel arrows, lanes, etc., such as road construction, warning / indicator, text symbols, etc., to achieve functions such as lighting and signal indication. Figure 7 Some examples of patterns that can be projected by the light device are shown, and the patterns corresponding to the respective grids can be the same as or different from each other, but the present disclosure is not limited thereto.

[0085] In some embodiments, Figure 1-3 and Figure 5 As shown, the housing 110 of the lamp device 100 includes a first portion 112 and a second portion 113, for example, in an L-shaped profile or other shapes, the first portion 112 may be open and include a bottom wall 1121 and a side wall 1122 defining a receiving space 111 for receiving the optical module, and a vent hole or heat dissipation hole 1123 may be formed on the bottom wall 1121. The second portion 113 may serve as a base for accommodating other components of the lamp device, such as a connector 181 electrically connected to the base 120 and / or the light source assembly 130 thereon, a driving circuit board 182, etc.

[0086] Embodiments of the present disclosure also provide a motor vehicle comprising an optical module or a light device as described in any of the above embodiments.

[0087] Although the present disclosure is described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify the preferred embodiments of the present disclosure and should not be construed as limiting the present disclosure. The dimensional ratios in the drawings are merely illustrative and should not be construed as limiting the present disclosure.

[0088] Although some embodiments of the general inventive concept of the present disclosure have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept of the present disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. An optical module, characterized in that: The optical module comprises: at least one substrate (120); A plurality of light source assemblies (130) mounted on a surface of the substrate, at least some of the plurality of light source assemblies being independently controllable to be selectively turned on or off; A grid member (140) disposed on the surface of the substrate, the grid member comprising a plurality of grids arranged in an array, each grid defining a cavity (141), at least one of the light source components being positioned in the cavity of each grid; and A light shaping element (150) is arranged on the light exiting side of the plurality of light source assemblies to shape the light emitted from the plurality of light source assemblies into a desired light distribution.

2. The optical module according to claim 1, wherein: The grid members are flexible or bendable.

3. The optical module according to claim 1, wherein: The grille member is in close contact with the substrate and the light shaping element.

4. The optical module according to claim 1, wherein: The optical module is flexible or bendable; The substrate includes a flexible circuit board or a bendable circuit board; The light shaping element is flexible or bendable; Each of the light source assemblies includes one or more LEDs.

5. The optical module according to claim 1, wherein: The material of the substrate includes FR4; The thickness of the substrate is less than 1 mm; The base is a one-piece piece.

6. The optical module according to claim 1, wherein: The grid member (140) includes partition walls (142) defining the plurality of grids, the partition walls (142) being disposed and extending between the substrate (120) and the light-shaping element (150); and The wall surface (1421) of the partition wall (142) extends perpendicularly or obliquely to the surface of the substrate, and the wall surface (1421) of the partition wall is planar or curved.

7. The optical module according to claim 6, wherein: A width dimension (W) of one end of the partition wall away from the surface of the substrate in a direction perpendicular to the first direction (Y) is less than or equal to 1 mm.

8. The optical module according to claim 6, wherein: A reflective layer is provided on the wall surface (1421) of the partition wall (142); or The partition wall (142) is black.

9. The optical module according to claim 1, wherein: The material of the grid component (140) includes at least one of silicone, TPU, TPV and EPDM.

10. The optical module according to any one of claims 1 to 9, wherein: A cross-sectional shape of each grid in a plane perpendicular to a thickness direction of the grid member includes at least one of a circle, a polygon, a heart, a five-pointed star, a six-pointed star, and an arrow.

11. The optical module according to any one of claims 1 to 9, wherein: Each grid has an opening remote from the substrate (120) defined by partition walls (142) of the grid, and The light shaping element (150) includes a first optical film (151) or a lens (154), wherein the first optical film or the lens is positioned on the partition wall and at least covers the openings of the plurality of grids so as to directly face the light source assembly positioned in the cavity of each of the grids, and the first optical film or the lens is configured to diffuse and homogenize the light emitted from the light source assembly, and / or to deflect the light emitted from the light source assembly.

12. The optical module according to claim 11, wherein: A pattern is formed on the first optical film (151), and the pattern is made of an opaque material to form a desired light distribution; The shape of the grid of the pattern is consistent with the shape of the grid of the grille component (140), and the grid of the pattern is arranged in a one-to-one correspondence with the grid of the grille component (140); or, the overall shape of the plurality of grids of the pattern is consistent with the shape of a grid of the grille component (140).

13. The optical module according to claim 11, wherein: When viewed from a side of the first optical film facing away from the partition walls, the partition walls are blocked by the light-impermeable material formed into the pattern.

14. The optical module according to claim 11, wherein: The light shaping element (150) further comprises a second optical film (152), the second optical film being arranged on a side of the first optical film away from the partition wall; There is a gap (G) between the first optical film and the second optical film, or the first optical film and the second optical film are attached to each other.

15. The optical module according to claim 14, wherein: The second optical film is configured to further diffuse and homogenize light from the first optical film and / or redirect light from the first optical film; Alternatively, the second optical film is configured to compress and protect the first optical film, and the second optical film has a metallic texture; Alternatively, the second optical film includes a PDLC film, which is transparent when powered on and opaque when powered off.

16. The optical module according to claim 14, wherein: At least one of the first optical film and the second optical film is formed with a microstructure, and the microstructure is formed on a light incident surface, a light emitting surface and / or an interior of the optical film; The microstructures are configured to diffusely shape light passing through the at least one optical film to form a desired pattern in the distribution of light exiting the at least one optical film.

17. The optical module according to any one of claims 1 to 9 and 12 to 16, further comprising: a light projection element (160) disposed on a side of the light shaping element (150) away from the light source assembly (130), wherein the light shaped by the light shaping element is projected to a target position by the light projection element; Wherein, the light projection element comprises a lens.

18. The optical module according to any one of claims 1 to 9, wherein: The grid member (140) has a uniform thickness; The partition wall (142) of the grid component (140) is bendable and elastically deformable; The partition wall (142) comprises a first side wall (1421) and a second side wall (1422) which are connected to each other at the upper ends, the lower ends of the first side wall and the second side wall are spaced apart, a partition groove (1423) is provided between the first side wall and the second side wall, and the partition wall is in a "V" shape.

19. The optical module according to claim 18, wherein: The thickness (h) of the spacing groove (1423) is greater than or equal to 1 / 2 of the thickness (H) of the spacing wall (142); The distance (d) between the lower ends of the first side wall and the second side wall is greater than or equal to 1 / 4 of the thickness (h) of the spacing groove (1423).

20. The optical module according to any one of claims 1 to 9, wherein: The grille component (140) comprises a plurality of positioning protrusions (145), which are arranged on the lower surface of the grille component and close to the edge of the lower surface. The positioning protrusions are used to be inserted into the positioning holes (121) on the surface of the base (120), so as to pre-install the grille component (140) on the base (120).

21. A lamp device (100), comprising: A housing (110); and The optical module according to any one of claims 1 to 20, wherein the optical module is at least partially mounted in the housing.

22. A motor vehicle, wherein: The motor vehicle comprises an optical module as claimed in any one of claims 1 to 20 , or a light device as claimed in claim 21 .

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