CN112721798A - Automobile skylight illuminating device capable of changing display pattern - Google Patents
Automobile skylight illuminating device capable of changing display pattern Download PDFInfo
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- CN112721798A CN112721798A CN202011145690.1A CN202011145690A CN112721798A CN 112721798 A CN112721798 A CN 112721798A CN 202011145690 A CN202011145690 A CN 202011145690A CN 112721798 A CN112721798 A CN 112721798A
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- 238000010147 laser engraving Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 description 34
- 239000000976 ink Substances 0.000 description 19
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
- B60Q3/208—Sun roofs; Windows
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/50—Mounting arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/62—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
- B60Q3/60—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
- B60Q3/68—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using ultraviolet light
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
Abstract
The invention discloses a light-emitting device for an automobile skylight with changeable display patterns, which comprises a light guide layer, a light-emitting module and a fixing pressing strip, wherein the light guide layer is arranged on the light guide layer; the first surface of the light guide layer is provided with a coating, the coating is provided with a first pattern and a second pattern, and the second surface of the light guide layer is provided with a third pattern; the light-emitting module comprises a first light-emitting element, a second light-emitting element, a third light-emitting element and a limiting block; the light emitting module is arranged on the fixed pressing strip and then is arranged on the surface of the automobile skylight together with the light guide layer; the first light-emitting element emits ultraviolet light to enable the first pattern to generate a fluorescence reaction; the second light-emitting element emits infrared light to enable the two patterns to generate fluorescence reaction; the third light emitting element emits primary color light to enable the third pattern to be displayed through reflection and refraction.
Description
Technical Field
The invention relates to a light-emitting device which is arranged on the surface of automobile skylight glass to create atmosphere, in particular to a light-emitting device for an automobile skylight with changeable display patterns.
Background
A sunroof is a device commonly installed in an automobile, which can provide good ventilation inside and outside the automobile when the sunroof is opened, or can allow a passenger to expose his body outside the automobile to enjoy good air in the countryside, and people also want to enjoy the night sky view when the sunroof is closed. Therefore, in order to create an atmosphere in a vehicle to improve driving experience, the atmosphere lamp technology is applied to the sunroof of the vehicle, which is widely applied to the sunroof of the medium and high-grade vehicle.
For example, chinese patent CN107471978A discloses a luminous window glass; chinese patent CN109624837B discloses a skylight glass for adjusting atmosphere in a vehicle; chinese patent CN103770696B discloses a vehicle glazing. The luminous vehicle window glass disclosed in the chinese patent CN107471978A comprises a first transparent plate, a first transparent bonding layer, a flexible transparent substrate, a second transparent bonding layer and a second transparent plate which are sequentially stacked from top to bottom, wherein the refractive index of the second transparent bonding layer is the same as that of the second transparent plate, the refractive index of the second transparent bonding layer is larger than that of the flexible transparent substrate, a linear light source is arranged at the side edge of the second transparent plate, so that incident light of the linear light source is incident from the side edge of the second transparent plate and/or the second transparent bonding layer, and is guided and transmitted between the second transparent plate and the second transparent bonding layer, and a scattering layer for scattering incident light of the linear light source is arranged at the lower surface of the flexible transparent substrate. The skylight glass for adjusting the atmosphere in the vehicle, disclosed in chinese patent CN109624837B, includes a first glass plate, an adhesive layer, a flexible sheet layer, and a second glass plate stacked in sequence from top to bottom, a light source disposed at a side of the second glass plate, a refractive index of the second glass plate being greater than that of the flexible sheet layer, a reflective pattern being disposed on a lower surface of the flexible sheet layer, a boundary of the flexible sheet layer being retracted inward by 3-30 mm relative to a boundary of the second glass plate, the adhesive layer and the second glass plate enclosing and coating the flexible sheet layer together, and a lower surface of the flexible sheet layer being closely attached to an upper surface of the second glass plate. The reflecting patterns are directly arranged on the flexible sheet body layer, so that the reflecting patterns can be better attached to the glass with small curvature and large arch height, the lower surface of the flexible sheet body layer is tightly attached to the upper surface of the second glass plate, and the reflecting patterns are directly contacted with the upper surface of the second glass plate. The vehicle glazing disclosed in the Chinese patent CN103770696B comprises a glass plate, a light guide layer, a refraction layer and a light source; the light-guiding layer is provided for guiding light coupled in at its end faces and has a coupling-out device by means of which the guided light is optically output on at least one main face of the light-guiding layer; the light guide layer is connected with the glass plate material in a locking manner; the refractive layer is arranged between the glass plate and the light guide layer, the refractive layer has a lower refractive index than the light guide layer, and the refractive layer is simultaneously configured as a sheet-type layer; the light source is arranged to be optically coupled in at least one end face of the light guiding layer.
A common feature of the above-mentioned patent documents is that only the glass has a luminous effect, or only a single reflective pattern can be produced without changing the effect. Further, there is no structure configured to protect the light emitting element, so that the light emitting element is easily damaged by collision at the time of assembly.
Disclosure of Invention
The invention provides a light-emitting device with changeable display patterns for an automobile skylight.
The invention aims to solve the problems that the existing automobile skylight glass only has a luminous effect or only can generate a single reflective pattern but has no change effect, and a luminous element is easy to be collided and damaged during assembly. The structure for protecting the light-emitting element can prevent the light-emitting element from being damaged by collision when the light-emitting device is assembled on the skylight of the automobile.
The technical scheme adopted by the invention for solving the technical problems is as follows: a light-emitting device for an automobile skylight with changeable display patterns comprises: the light guide plate comprises a light guide layer, a light emitting module and a fixing pressing strip, wherein a first surface of the light guide layer is provided with a coating with a first pattern, the first pattern is formed by first printing ink which generates fluorescence reaction on ultraviolet light, a first adhesive layer is further arranged around the first surface, a second surface of the light guide layer opposite to the first surface is provided with a third pattern, and the third pattern is formed by a plurality of concave holes capable of reflecting and refracting light; the light-emitting module comprises a printed circuit board, at least one first light-emitting element arranged on the printed circuit board and at least one limiting block, wherein the first light-emitting element is used for emitting ultraviolet light, and the limiting block is closer to one side edge of the printed circuit board than the first light-emitting element; the light emitting module is arranged on the fixing pressing strip, so that the light incident edge of the light guide layer contacts the limiting block and is adjacent to the first light emitting elements, and a second bonding layer is further arranged on the fixing pressing strip; the light guide layer is fixed on the surface of the automobile skylight through the first adhesive layer, and the fixing pressing strip is also fixed on the surface of the automobile skylight through the second adhesive layer.
Preferably, the number of the first light-emitting elements is at least two, and the first light-emitting elements are ultraviolet LEDs.
Preferably, at least one third light emitting element is disposed on the printed circuit board.
Preferably, the number of the third light emitting elements is at least two, and the third light emitting elements are primary color LEDs.
Preferably, the coating layer further includes a second pattern formed of a second ink that fluoresces in response to infrared light and does not overlap the first pattern;
preferably, the printed circuit board is provided with at least one second light emitting element, the second light emitting element is used for emitting infrared light, and the limiting block is closer to one side of the printed circuit board than the second light emitting element.
Preferably, the number of the second light emitting elements is at least two, and the second light emitting elements are infrared light LEDs.
Preferably, the third pattern is formed by forming a plurality of concave holes on the second surface of the light guide layer by laser engraving.
Preferably, the first light emitting elements are linearly arranged on the printed circuit board, and each of the stoppers is disposed between two adjacent first light emitting elements.
Preferably, one of the first light emitting elements, one of the second light emitting elements, and one of the third light emitting elements are sequentially arranged to form a light emitting unit, a plurality of the light emitting units are linearly arranged on the printed circuit board, and each of the stoppers is disposed between adjacent light emitting units.
Preferably, the upper surface of fixed layering is formed with first bulge and second bulge, first bulge with form the depressed part between the second bulge, fixed layering depressed part department is equipped with the third bonding layer, printed circuit board is fixed in through the third bonding layer the bottom surface of depressed part.
The invention has the beneficial effects that: after the automobile skylight glass is installed on the automobile skylight glass, different light-emitting elements are switched to emit light so as to display fluorescent or reflective patterns more changeably, so that richer and more comfortable atmosphere can be created in the automobile, and in the process of being installed on the skylight glass, the light-emitting elements in the light-emitting module can be properly protected so as to avoid collision damage.
Drawings
FIG. 1 is a schematic view showing a state in which a light emitting device of the present invention is mounted on a sunroof glass;
FIG. 2 is a partial perspective view of a light-emitting device according to the present invention;
FIG. 3 is a plan sectional exploded view of the light-emitting device of the present invention including the components in combination;
FIG. 4 is a plan sectional view of the light-emitting device assembly of the present invention;
FIG. 5 is a schematic partial plan view illustrating the arrangement relationship between the light-emitting elements and the stoppers of the light-emitting device of the present invention;
FIG. 6 is a schematic cross-sectional side view of a first light-emitting element of the light-emitting device of the present invention emitting ultraviolet light to cause a first pattern of a coating to fluoresce;
FIG. 7 is a schematic cross-sectional side view of a second light-emitting device of the present invention emitting infrared light to cause a second pattern of a coating to fluoresce;
FIG. 8 is a schematic side sectional view illustrating that the first light emitting device and the second light emitting device of the present invention emit light simultaneously to generate fluorescence reaction of the first pattern and the second pattern simultaneously;
FIG. 9 is a schematic cross-sectional side view of a light-emitting device of the present invention showing a third light-emitting element emitting light to reflect and refract a third pattern;
FIG. 10 is a schematic plan view of a first light-emitting element of the light-emitting device of the present invention emitting ultraviolet light to generate a first pattern of light emission;
FIG. 11 is a schematic plan view of a second light-emitting element of the light-emitting device of the present invention emitting infrared light to generate a second pattern of light emission;
in the figure: the LED module comprises a light emitting module, a printed circuit board (10), a first light emitting element (11A), a second light emitting element (11B), a current driving element (12), a light emitting element module (A), a light emitting unit (U), a limiting block (16), a light guide layer (2), a concave hole (21), a fixing pressing strip (3), a concave part (31), a first convex part (32), a second convex part (33), a first adhesive layer (4A), a second adhesive layer (4B), a third adhesive layer (4C), skylight glass (5), a glass frame (51), a coating (C), a first pattern (C1), a second pattern (C2), ultraviolet light (L1), infrared light (L2) and primary color light (L3).
Detailed Description
The invention is further described with reference to the accompanying drawings and the specific embodiments.
As shown in the figure, the light-emitting device for the automobile skylight with the changeable display patterns is a light-emitting device which is arranged on an automobile skylight glass 5. The LED light guide plate comprises a light guide layer 2, a light emitting module 1 and a fixing pressing strip 3. The light guide layer 2 is a plate-shaped body made of transparent material with good light guide and rotation properties and proper thickness, and preferably can be made of soft light-conductive transparent material, so that the light guide layer can be cut, assembled and attached to the automobile skylight glass according to the size and the radian of the automobile skylight glass.
Two opposite planes of the light guide layer 2 are respectively a first plane and a second plane. The present invention preferably forms a first pattern C1 and a second pattern C2 on the first surface of the light guide layer 2 by stamping or printing the first ink and the second ink, which do not overlap with each other, respectively, and the first pattern C1 and the second pattern C2 together form a coating layer C on the first surface of the light guide layer 2 (as shown in fig. 6).
The first pattern C1 is formed by a first ink which generates a fluorescent reaction to ultraviolet light, and a first adhesive layer 4A is disposed around the first surface. A third pattern C3 is formed on the second surface of the light guide layer 2 opposite to the first surface, and the third pattern C3 is composed of a plurality of concave holes 21 capable of reflecting and refracting light. The second pattern C2 is formed of a second ink that fluoresces in response to infrared light.
The basic components of the first ink and the second ink comprise: pigments, linking agents and additives; they are all inorganic compounds or organic compounds, and printing inks having different characteristics are produced by appropriately adjusting the proportions of the components. For example, a printed pattern can be made fluorescent or phosphorescent phosphor by adding appropriate fluorescent or phosphorescent pigment powder to the ink. The invention uses colorless fluorescent pigment as one component of the first ink and the second ink respectively, and different additives are added into the first ink and the second ink, so that the first pattern C1 printed by the first ink generates fluorescent reaction to emit light when receiving ultraviolet light, but does not generate fluorescent reaction and can hardly be seen visually when receiving other light, namely the first ink can be regarded as invisible ink; the second pattern C2 printed by the second ink fluoresces and emits light when receiving infrared light that is invisible light, but does not fluoresce and is hardly visible when receiving other light, i.e., the second ink is also invisible.
As shown in fig. 9, the first pattern C1 may be any pattern; the second pattern C2 may be any pattern different from the first pattern C1, and may even be a complementary pattern to the first pattern C1, but the first pattern C1 and the second pattern C2 do not overlap each other.
The second surface of the light guide layer 2 is formed with a plurality of fine concave hole 21 structures by laser engraving, and the plurality of concave holes 21 constitute a third pattern C3. Through the structure of the small concave holes 21, the light transmitted in the light guide layer 2 can be reflected and refracted when touching the concave holes 21, so that the light is brighter at the concave holes 21 than at non-concave holes, and the luminous third pattern C3 is shown.
As shown in fig. 2 and 5, the light emitting module 1 preferably includes a printed circuit board 10, a plurality of first light emitting elements 11A, a plurality of second light emitting elements 11B, a plurality of third light emitting elements 11C, and a plurality of stoppers 16 disposed on the printed circuit board 10, the plurality of first light emitting elements 11A preferably use ultraviolet light emitting diodes (UV LEDs) for emitting ultraviolet light; the second light emitting element 11B preferably uses an infrared light emitting diode (IR LED) for emitting infrared light; the plurality of third light emitting elements 11C preferably use primary light emitting diodes (RGB LEDs) for emitting three primary colors of red, green, and blue; the stoppers 16 are closer to a side of the printed circuit board 10 than the first, second, and third light emitting elements 11A, 11B, and 11C. The light incident edge of the light guide layer 2 contacts the stopper 16.
One first light emitting element 11A, one second light emitting element 11B, and one third light emitting element 11C are sequentially arranged to form a light emitting unit U, a plurality of the light emitting units U are linearly arranged on the printed circuit board 10, and each stopper 10 is disposed between adjacent light emitting units.
More specifically, when the first surface of the light guiding layer 2 is provided with the coating C including the first pattern C1 and the second pattern C2, and the second surface of the light guiding layer 2 is provided with the third pattern C3, as shown in fig. 5, the light emitting module 1 is configured such that a first light emitting element 11A, a second light emitting element 11B and a third light emitting element 11C are sequentially arranged to form a light emitting unit U, and a plurality of the light emitting units U are linearly arranged on the printed circuit board 10, and the stopper 16 can be disposed between the first light emitting element 11A and the second light emitting element 11B, between the second light emitting element 11B and the third light emitting element 11C, or between the first light emitting element 11A and the third light emitting element 11C without limitation; each stopper 16 is disposed on a side closer to the printed circuit board 10 than the first light emitting element 11A, the second light emitting element 11B, and the third light emitting element 11C. Therefore, a gap T (as shown in fig. 5) exists between the limiting block 16 and the light emitting surfaces of the first, second, and third light emitting elements 11A, 11B, and 11C. In addition, a plurality of current driving elements 12 (e.g., resistors) are further used in combination with one first light emitting element 11A, one second light emitting element 11B, or one third light emitting element 11C to form one light emitting element module a, and each light emitting element module a can be controlled to be supplied with current to enable the first light emitting element 11A, the second light emitting element 11B, or the third light emitting element 11C to emit light.
The fixing bead 3 is a fixing member for providing the light emitting module 1 thereon and fixing the whole light emitting device to the sunroof glass 5. As shown in fig. 2 to 4, the fixing bead 3 may be integrally formed in a ring frame shape. A first protrusion 32 and a second protrusion 33 are formed on the upper surface of the fixing bead 3, a recess 31 is formed between the first protrusion and the second protrusion, the first protrusion 32 is flush with the upper surface of the second protrusion 33, and the bottom surface of the recess 31 is lower than the upper surfaces of the first protrusion 32 and the second protrusion 33. The fixing depression bar 31 is provided with a third adhesive layer 4C, and the printed circuit board 10 is fixed on the bottom surface of the depression bar 31 through the third adhesive layer 4C.
The fixed pressing strip 3 is also provided with a second adhesive layer 4B; the light guide layer 2 is fixed on the surface of the automobile skylight 5 through the first adhesive layer 4A, and the fixing pressing strip 3 is also fixed on the surface of the automobile skylight 5 through the second adhesive layer 4B.
The present invention may also provide only the first pattern C1 or only the second pattern C2 on the coating C of the first side of the light guide layer 2, instead of providing the first pattern and the second pattern at the same time (not shown). Although not shown in the drawings, it can be understood by referring to fig. 5 and 6 that when only the first pattern C1 or only the second pattern C2 is disposed on the coating layer C of the first surface of the light guiding layer 2, the light emitting module 1 is configured to dispose only the first light emitting elements 11A and the third light emitting elements 11C or the second light emitting elements 11B and the third light emitting elements 11C arranged in a straight line on the printed circuit board 10. A stopper is disposed between the first light emitting elements linearly arranged on the printed circuit board 10.
The mode of the light emitting device of the present invention mounted on the sunroof is explained as follows:
as shown in FIG. 3, the printed circuit board 10 is first fixed to the concave portion 31 of the fixing bead 3 by the third adhesive layer 4C
A bottom surface; the third adhesive layer 4C may be a double-sided tape, and after one side of the third adhesive layer 4C is adhered to the bottom surface of the printed circuit board 10, the other side is adhered to the bottom surface of the recess 31, so as to fix the printed circuit board 10.
Then paste the one side of first bonding layer 4A on the first face that has set up coating C of leaded light layer 2, paste the another side of first bonding layer 4A on sunroof glass 5's surface again for leaded light layer 2 is fixed in sunroof glass 5.
Finally, after one surface of a second adhesive layer 4B is adhered to the upper surface of the second protrusion 33 of the fixing bead 3, the other surface of the second adhesive layer 4B is adhered to the surface of the sunroof glass 5, and the first protrusion 32 of the fixing bead 3 is pressed on the lower surface of the light guide layer 2, so that the light guide layer 2 is further firmly fixed to the sunroof glass 5. During the installation process, the position of the fixing bead 3 is properly adjusted to make the outer edge of the fixing bead 3 abut against the inner edge of the glass frame 51 of the skylight, so as to accord with the visual beauty. Meanwhile, in the installation process, after the light incident surface on one side of the light guide layer 2 is abutted against the limiting block 16, the second adhesive layer 4B is adhered to the skylight glass 5; therefore, the light guide layer 2 does not touch the first light emitting element 11A and the second light emitting element 11B during the mounting process, so that each light emitting element can be protected from being damaged.
In the light emitting device of the present invention, it is preferable that the coating layer C including the first pattern C1 and the second pattern C2 is provided on the first surface of the light guide layer 2, the third pattern C3 is provided on the second surface, and the first light emitting element 11A, the second light emitting element 11B, and the third light emitting element 11C are arranged in the light emitting module 1, and the first light emitting element 11A, the second light emitting element 11B, and the third light emitting element can be selectively switched by an IC circuit and a switch, so that the following description is provided as a usage of the present invention:
as shown in fig. 6 and 10, when the circuit is switched to make only the first light emitting element 11A emit the ultraviolet light L1, only the first pattern C1 generates the fluorescence reaction to the ultraviolet light L1 to emit light, and the second pattern C2 does not generate the fluorescence reaction to emit light, so that the first pattern C1 emitting light is reflected by the second surface of the light guiding layer 2, and the first pattern on the sunroof can be viewed when the head of the occupant in the vehicle is raised. Meanwhile, the ultraviolet light L1 emitted by the first light emitting element 11A is reflected and refracted by the concave hole 21 of the third pattern C3, so that the third pattern C3 emits light and reflects the light out of the second surface of the light guiding layer 2.
As shown in fig. 7 and 11, when the circuit is switched to make only the second light emitting element 11B emit the infrared light L2, only the second pattern C2 generates a fluorescence reaction to the infrared light L2 to reflect light, and the first pattern C1 does not generate a fluorescence reaction to emit light, so that the second pattern C2 emitting light is reflected by the second surface of the light guiding layer 2, and the second pattern on the sunroof can be viewed when the occupant in the vehicle raises his head. Since the infrared light L2 is invisible light, the third pattern C1 is not caused to emit light when only the second light emitting element 11B is caused to emit infrared light L2.
As shown in fig. 8, when the circuit is switched to make the first light emitting element 11A emit ultraviolet light L1 and the second light emitting element 11B emit infrared light L2 at the same time, the first pattern C1 generates a fluorescence reaction to the ultraviolet light L1 to emit light, the second pattern C2 generates a fluorescence reaction to the infrared light L2 to emit light, and the ultraviolet light L1 is reflected and refracted by the concave hole 21 of the third pattern C3 to emit light, so that the first pattern C1, the second pattern C2 and the third pattern C3 are simultaneously displayed on the second surface of the light guiding layer 2; the first pattern C1, the second pattern C2 and the third pattern C3, which are properly designed and matched, can present a more stereoscopic visual effect by the distance between each other.
As shown in fig. 9, when the circuit is switched to make only the third light emitting element 11C emit the three primary color light L3, only the concave hole 21 of the third pattern C3 reflects and refracts the three primary color light L3 to emit light, and neither the first pattern C1 nor the second pattern C2 generates fluorescence reaction and does not emit light, so that only the third pattern C3 appears on the second surface of the light guiding layer 2, and the third pattern on the sunroof can be viewed when the passenger in the vehicle heads up. The third light emitting element 11C can also be controlled to emit red, blue or green light, respectively or simultaneously, so that the third pattern presents a more colorful visual effect.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting thereof in any way, and any modifications or variations thereof, which are within the spirit of the invention, are intended to be included within the scope of the invention.
Claims (10)
1. A light-emitting device for an automobile skylight with changeable display patterns is characterized in that: the light-emitting device comprises a light guide layer, a light-emitting module and a fixing pressing strip, wherein a first surface of the light guide layer is provided with a coating with a first pattern, the first pattern is formed by first ink which can generate fluorescence reaction on ultraviolet light, a first bonding layer is further arranged around the first surface, a third pattern is formed on a second surface, opposite to the first surface, of the light guide layer, and the third pattern is composed of a plurality of concave holes capable of reflecting and refracting light; the light-emitting module comprises a printed circuit board, at least one first light-emitting element arranged on the printed circuit board and at least one limiting block, wherein the first light-emitting element is used for emitting ultraviolet light, and the limiting block is closer to one side edge of the printed circuit board than the first light-emitting element; the light emitting module is arranged on the fixing pressing strip, so that the light incident edge of the light guide layer contacts the limiting block and is adjacent to the first light emitting elements, and a second bonding layer is further arranged on the fixing pressing strip; the light guide layer is fixed on the surface of the automobile skylight through the first adhesive layer, and the fixing pressing strip is also fixed on the surface of the automobile skylight through the second adhesive layer.
2. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: the first light-emitting elements are at least two, and the first light-emitting elements are ultraviolet LEDs.
3. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: at least one third light-emitting element is arranged on the printed circuit board.
4. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 3, wherein: the number of the third light-emitting elements is at least two, and the third light-emitting elements are primary color LEDs.
5. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: the coating further includes a second pattern formed of a second ink that fluoresces in response to infrared light and that does not overlap the first pattern; the printed circuit board is provided with at least one second light-emitting element, the second light-emitting element is used for emitting infrared light, and the limiting block is closer to one side edge of the printed circuit board than the second light-emitting element.
6. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 5, wherein: the number of the second light-emitting elements is at least two, and the second light-emitting elements are infrared light LEDs.
7. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: the third pattern is formed by forming a plurality of concave holes on the second surface of the light guide layer in a laser engraving mode.
8. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: the first light-emitting elements are linearly arranged on the printed circuit board, and each limit block is arranged between two adjacent first light-emitting elements.
9. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, 3 or 5, wherein: the first light-emitting element, the second light-emitting element and the third light-emitting element are sequentially arranged to form a light-emitting unit, the light-emitting units are linearly arranged on the printed circuit board, and each limiting block is arranged between the adjacent light-emitting units.
10. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: the upper surface of fixed layering is formed with first bulge and second bulge, first bulge with form the depressed part between the second bulge, fixed layering depressed part department is equipped with the third bonding layer, printed circuit board is fixed in through the third bonding layer the bottom surface of depressed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011145690.1A CN112721798A (en) | 2020-10-23 | 2020-10-23 | Automobile skylight illuminating device capable of changing display pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011145690.1A CN112721798A (en) | 2020-10-23 | 2020-10-23 | Automobile skylight illuminating device capable of changing display pattern |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112721798A true CN112721798A (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011145690.1A Pending CN112721798A (en) | 2020-10-23 | 2020-10-23 | Automobile skylight illuminating device capable of changing display pattern |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112721798A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023060599A1 (en) * | 2021-10-15 | 2023-04-20 | 福耀玻璃工业集团股份有限公司 | Vehicle window assembly and vehicle |
-
2020
- 2020-10-23 CN CN202011145690.1A patent/CN112721798A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023060599A1 (en) * | 2021-10-15 | 2023-04-20 | 福耀玻璃工业集团股份有限公司 | Vehicle window assembly and vehicle |
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