TWM609786U - Light-emitting device for automobile sunroof capable of changing displayed patterns - Google Patents

Abstract

A light-emitting device for an automobile sunroof capable of changing a display pattern, comprising: a light-guiding layer, a light-emitting module, and a fixed bead; wherein a coating is provided on the first surface of the light-guiding layer, and the coating has a first pattern With the second pattern, the second surface of the light guide layer is provided with a third pattern; the light-emitting module includes a plurality of first light-emitting elements, a second light-emitting element, a third light-emitting element, and a limiting block; the light-emitting module is provided The first light-emitting element emits ultraviolet light to make the first pattern produce a fluorescent reaction; the second light-emitting element emits infrared light to make the second The pattern generates a fluorescent reaction; the third light-emitting element emits primary color light to make the third pattern appear through reflection and refraction.

Description

Light-emitting device for automobile sunroof capable of changing display pattern

This creation relates to a light-emitting device installed on the surface of a car sunroof glass to create an atmosphere, especially a light-emitting device for a car sunroof that can change the display pattern.

Sunroof is a commonly configured equipment in automobiles. In addition to opening the sunroof to obtain good ventilation effect inside and outside the car, or the occupant can expose the body to enjoy the good air in the suburbs, people also hope to enjoy the night sky outside when the sunroof is closed. Scenery, but the conventional car sunroof function only ends here. Therefore, in order to create an atmosphere in the car to enhance the driving experience, the application of ambient light technology to automotive sunroofs has been widely used in sunroofs of mid-to-high-end vehicles.

For example, Chinese patent CN107471978A discloses a luminous vehicle window glass; Chinese patent CN109624837B discloses a sunroof glass for adjusting the atmosphere in a vehicle; Chinese patent CN103770696B discloses a vehicle assembly glass.

Among them, the luminous vehicle window glass disclosed in Chinese Patent CN107471978A includes a first transparent plate, a first transparent adhesive layer, a flexible transparent substrate, a second transparent adhesive layer, and a second transparent plate stacked sequentially from top to bottom. The refractive index of the transparent adhesive layer is the same as that of the second transparent plate. The refractive index of the second transparent adhesive layer is greater than the refractive index of the flexible transparent substrate. The side edge of the second transparent plate is provided with a linear light source to make the linear light source incident Light enters from the side edge of the second transparent plate and/or the second transparent adhesive layer, and is guided and transmitted between the second transparent plate and the second transparent adhesive layer. The lower surface of the flexible transparent substrate is provided with a scattering line The scattering layer of the incident light from the light source.

Among them, Chinese patent CN109624837B discloses a sunroof glass for adjusting the atmosphere in a car, which includes a first glass plate, a bonding layer, a flexible sheet layer and a second glass plate laminated from top to bottom, and a light source arranged on the side of the second glass plate , The refractive index of the second glass plate is greater than that of the flexible sheet The refractive index of the layer, the lower surface of the flexible sheet body layer is provided with a reflective pattern, the boundary of the flexible sheet body layer is inwardly contracted by 3~30mm relative to the boundary of the second glass plate, and the adhesive layer and the second glass plate jointly seal and cover the flexible sheet body layer , The lower surface of the flexible sheet layer is tightly attached to the upper surface of the second glass plate. The reflective pattern is directly made on the flexible sheet layer, so it can better fit the glass shape with small curvature and large arch. The lower surface of the flexible sheet layer is closely attached to the upper surface of the second glass plate, and the reflective pattern is directly connected to the second glass plate. The upper surfaces of the two glass plates are in contact.

Among them, the vehicle assembly glass disclosed in Chinese Patent CN103770696B includes a glass plate, a light guide layer, a refraction layer, and a light source; the light guide layer is configured to guide the light coupled in on its end surface and has a coupling output device, through which the coupling The output device makes the guided light output light on at least one main surface of the light guide layer; the light guide layer is connected to the glass plate in a material-locked manner; the refraction layer is arranged between the glass plate and the light guide layer, and the refraction The layer has a lower refractive index than the light guide layer, and the refraction layer is configured as a sheet layer at the same time; the light source is arranged to be optically coupled in on at least one end surface of the light guide layer.

The common feature of the aforementioned multiple published patent documents is that only the glass has a luminous effect, or can only produce a single reflective pattern without changing the effect. In addition, there is no structure configured to protect the light-emitting element, so that the light-emitting element is easily damaged by collision during assembly.

One of the objectives of this creation is to provide a light-emitting device suitable for installation on the sunroof glass of an automobile, which can change the displayed light-emitting pattern to create a richer, more varied and comfortable atmosphere inside the automobile.

Another object of the present creation is to provide a light emitting device suitable for installation on a sunroof glass of an automobile, which is configured to protect the structure of the light emitting element, so that the light emitting device avoids collision damage to the light emitting element when the light emitting device is assembled on the sunroof.

The technical means of the light-emitting device for an automobile sunroof with a switchable display pattern provided by this creation may include: a light guide layer, the first surface of which is provided with a coating layer with a first pattern, and the first pattern is compatible with The first ink is formed by the fluorescent reaction produced by ultraviolet light, a first adhesive layer is also provided around the first surface, and a second surface of the light guide layer opposite to the first surface is formed with a The third pattern, the third pattern is composed of a plurality of concave holes that can reflect and refract light; a light-emitting module includes a printed circuit board, a plurality of first light-emitting elements arranged on the printed circuit board, and A plurality of limiting blocks, the plurality of first light-emitting elements are used for emitting ultraviolet light, and the plurality of limiting blocks are closer to one side of the printed circuit board than the plurality of first light-emitting elements; And a fixed bead on which the light-emitting module is provided so that the light incident edge of the light guide layer contacts the plurality of limit blocks and is adjacent to the plurality of first light-emitting elements, and the fixed bead is also provided There is a second adhesive layer; wherein the light guide layer is fixed to the surface of the sunroof through the first adhesive layer, and the fixing bead is fixed to the surface of the sunroof through the second adhesive layer.

In an embodiment, the first light-emitting element may be an ultraviolet LED, and the third light-emitting element may be a primary color LED.

In another embodiment, the coating layer may further include a second pattern, the second pattern being formed of a second ink that can produce a fluorescent reaction to infrared light and not overlapping the first pattern, and A plurality of second light-emitting elements are arranged on the printed circuit board, and the plurality of second light-emitting elements are used to emit infrared light, and the plurality of limit blocks are closer than the plurality of second light-emitting elements One side of the printed circuit board.

In another embodiment, the second light-emitting element may be an infrared LED.

In an embodiment, the third pattern may be formed by forming a plurality of cavities on the second surface of the light guide layer using a laser engraving method.

In an embodiment, the plurality of first light-emitting elements are linearly arranged on the printed circuit board, and each of the limit blocks is disposed between a part of two adjacent first light-emitting elements.

In an embodiment, one of the first light-emitting element, one of the second light-emitting element, and one of the third light-emitting elements may be sequentially arranged into a light-emitting unit, and a plurality of the light-emitting units are arranged linearly in the printing unit. On a circuit board, and each of the limit blocks is arranged between the adjacent light-emitting units.

In an embodiment, the upper surface of the fixing bead may form a first protrusion and a second protrusion, and a recess is formed between the first protrusion and the second protrusion , The printed circuit board is fixed to the bottom surface of the recessed portion through a third adhesive layer.

This creation uses the aforementioned light-emitting device, when installed on the car's sunroof glass, can switch different light-emitting elements to emit light to display fluorescent or reflective patterns more variably, so as to create a richer and more comfortable atmosphere inside the car. In addition, during installation to the skylight, the light-emitting elements in the light-emitting module can be properly protected to avoid collision damage.

1: Light-emitting module

10: Printed circuit board

11A: The first light-emitting element

11B: second light-emitting element

11C: The third light-emitting element

12: Current drive components

A: Light-emitting component module

U: light-emitting unit

16: limit block

2: Light guide layer

21: concave hole

3:Fixed bead

31: Depressed part

32: The first protrusion

33: second protrusion

4A: The first adhesive layer

4B: The second adhesive layer

4C: The third adhesive layer

5: Skylight glass

51: glass frame

C: Coating

C1: The first pattern

C2: The second pattern

C3: The third pattern

L1: Ultraviolet light

L2: infrared light

L3: Three primary colors

Figure 1 is a schematic diagram showing the state of the light-emitting device of this creation installed behind the car sunroof glass;

Figure 2 is a partial three-dimensional schematic diagram showing the structure of the light-emitting device of the present invention;

Fig. 3 is an exploded plan view showing the combination of components included in the light-emitting device of the invention;

Figure 4 is a plan sectional view showing the combined structure of the light-emitting device of the present invention;

Fig. 5 is a partial plan view showing the arrangement relationship between the light-emitting element and the limiting block of the light-emitting device of the present creation;

6 is a schematic side view showing that the first light-emitting element of the light-emitting device of the present invention emits ultraviolet light to cause the first pattern of the coating to produce a fluorescent reaction;

Fig. 7 is a schematic side sectional view showing that the second light-emitting element of the light-emitting device of the present invention emits infrared light to cause the second pattern of the coating to produce a fluorescent reaction;

FIG. 8 is a schematic side view showing that the first light-emitting element and the second light-emitting element of the light-emitting device of the present invention emit light at the same time, so that the first pattern and the second pattern simultaneously generate a fluorescent reaction;

Fig. 9 is a schematic side sectional view showing that the third light emitting element of the light emitting device of the present invention emits light to reflect and refract the third pattern;

FIG. 10 is a schematic plan view showing a first pattern of the first light emitting element of the light emitting device of the invention emitting ultraviolet light to generate light;

11 is a schematic plan view showing the second light emitting element of the light emitting device of the present creation emits infrared light to generate a second pattern of light; and

12 is a schematic plan view showing that the third light-emitting element of the light-emitting device of the present invention emits primary color light to reflect and refract the third pattern.

The following is a more detailed description of the implementation of this creation in conjunction with the drawings and component symbols, so that those who are familiar with the art can implement it after reading this specification.

Fig. 1 is a schematic diagram showing the state of the light-emitting device of the invention installed behind the sunroof glass; Fig. 2 is a partial three-dimensional schematic diagram showing the structure of the light-emitting device of the invention; Fig. 3 is a diagram showing the combination of elements included in the light-emitting device of the invention And Figure 4 is a plan sectional view showing the combined structure of the light-emitting device of the present invention.

As shown in Figures 2 to 4, the light-emitting device for automobile sunroofs with changeable display patterns provided by this creation is mainly used for light-emitting devices installed on automobile sunroof glass, including: a light-emitting module 1, a light guide layer 2 And a fixed bead 3; wherein, the light guide layer 2 is a plate-shaped body made of a transparent material with good light guide properties and an appropriate thickness, and preferably can be made of a soft, light-guided transparent material to make it It can be cut, assembled, and attached to the skylight glass according to the size and curvature of the skylight.

The two opposing planes of the light guide layer 2 are the first side and the second side respectively. This creation can preferably use the first ink and the second ink on the light guide layer 2 by embossing or printing. The first surface respectively forms a first pattern C1 and a second pattern C2 that do not overlap each other, and the first pattern C1 and the second pattern C2 together form a coating C on the first surface of the light guide layer 2 (as shown in FIG. 6 Show).

The basic components of the first ink and the second ink include: pigments, linking agents and additives; they are all inorganic compounds or organic compounds, and the ratio of the components is adjusted appropriately to prepare printing inks with different characteristics. For example, adding appropriate fluorescent or phosphorescent pigment powder to the ink can make the printed pattern have a fluorescent or phosphorescent reaction. This creation uses colorless fluorescent pigments as part of the first ink and the second ink, and adds different additives to the first ink and the second ink to make the first pattern C1 printed by the first ink accept When ultraviolet light is reached, it produces fluorescent reaction and emits light, but when receiving other light, it does not produce fluorescent reaction and can hardly be seen visually, that is, the first ink can be regarded as invisible ink; the second pattern C2 printed by the second ink is accepted When infrared light, which is invisible light, it produces fluorescent reaction and emits light, it does not produce fluorescent reaction when receiving other light, and it can hardly be seen visually, that is, the second ink is also an invisible ink.

As shown in FIG. 9, the first pattern C1 can be any pattern; the second pattern C2 can be any pattern different from the first pattern C1, and can even interact with the first pattern C1. Complementary patterns, but the first pattern C1 and the second pattern C2 do not overlap each other.

The second surface of the light guide layer 2 can use laser engraving technology to form a plurality of small concave holes on the surface thereof, and the plurality of concave holes 21 groups constitute the third pattern C3. Through the structure of the plurality of small cavities 21, the light transmitted in the light guide layer 2 will be reflected and refracted when it hits the cavities 21, making the light brighter at the cavities 21 than at the non-cavities. , Thereby showing a third pattern C3 that emits light.

In another embodiment, the present creation can also only provide the first pattern C1 or only the second pattern C2 on the coating C on the first side of the light guide layer, instead of simultaneously providing the first pattern and the second pattern ( Not shown in the figure).

As shown in FIGS. 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, and a plurality of The third light-emitting element 11C and a plurality of limit blocks 16, the plurality of first light-emitting elements 11A preferably use ultraviolet light emitting diodes (UV LED) for emitting ultraviolet light; the second light-emitting element 11B is preferably Infrared light emitting diodes (IR LEDs) are used for emitting infrared light; the plurality of third light emitting elements 11C preferably use primary color light emitting diodes (RGB LEDs) for emitting red and green light. Three primary colors of light and blue; the plurality of limit blocks 16 are closer to one side of the printed circuit board 10 than the plurality of first light-emitting elements 11A, second light-emitting elements 11B, and third light-emitting elements 11C.

More specifically, when the first surface of the light guide 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 guide layer 2 is provided with the third pattern C3, as shown in FIG. 5 As shown, the matched light-emitting module 1 is a first light-emitting element 11A, a second light-emitting element 11B, and a third light-emitting element 11C arranged in sequence into a light-emitting unit U, and then a plurality of the light-emitting units U are arranged in a straight line On the printed circuit board 10, and the limit block 16 can be arranged without limitation between the first light-emitting element 11A and the second light-emitting element 11B, or between the second light-emitting element 11B and the third light-emitting element 11C, or the first light-emitting element 11B and the third light-emitting element 11C. Between the light-emitting element 11A and the third light-emitting element 11C; each limit block 16 is arranged 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, there is a gap T between the limiting block 16 and the light-emitting surfaces of the first, second, and third light-emitting elements 11A, 11B, and 11C (as shown in FIG. 5). Show). In addition, a plurality of current driving elements 12 (such as resistors) are combined with a first light-emitting element 11A, a second light-emitting element 11B, or a third light-emitting element 11C to form a light-emitting element module A, and each light-emitting element module A The input current can be controlled to make the first light-emitting element 11A, the second light-emitting element 11B, or the third light-emitting element 11C emit light.

Although it is not shown in the figure, it can be understood with reference to FIGS. 5 and 6 that when the coating C on the first surface of the light guide layer 2 is provided with only the first pattern C1 or only the second pattern C2, the matching In the light-emitting module 1, only a plurality of first light-emitting elements 11A and a third light-emitting element 11C, or a plurality of second light-emitting elements 11B and a third light-emitting element 11C arranged in a straight line are arranged on the printed circuit board 10.

The fixed bead 3 is a fixing element that provides the light-emitting module 1 on it and installs and fixes the entire light-emitting device on the sunroof glass of an automobile; as shown in FIGS. 2 to 4, the fixed bead 3 can be formed as an integral molding A ring frame shape, and a first protrusion 32 and a second protrusion 33 are formed on the upper surface, and a recess 31 is formed between the first protrusion 32 and the second protrusion 33; the first protrusion The portion 32 is flush with the upper surface of a second protruding portion 33, and the bottom surface of the recessed portion 31 is lower than the upper surfaces of the first protruding portion 32 and the second protruding portion 33.

The way the light-emitting device of this creation is installed on the car sunroof is explained as follows:

As shown in FIG. 3, first, the printed circuit board 10 is fixed to the bottom surface of the recess 31 of the fixing bead 3 through the third adhesive layer 4C; the third adhesive layer 4C may be a double-sided foam tape, and the third adhesive layer 4C After the one side is pasted on the bottom surface of the printed circuit board 10, the other side is pasted on the bottom surface of the recess 31 to fix the printed circuit board 10.

Then stick one side of a first adhesive layer 4A on the first surface of the light guide layer 2 where the coating C has been set, and then stick the other side of the first adhesive layer 4A on the surface of the car sunroof glass 5, so that the light guide Layer 2 is fixed to skylight glass 5.

Finally, one side of a second adhesive layer 4B is pasted on the upper surface of the second protrusion 33 of the fixing bead 3, and then the other side of the second adhesive layer 4B is pasted on the surface of the automobile sunroof glass 5, and the fixing bead The first protrusion 32 of 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. In the foregoing installation process, the position of the fixing bead 3 is appropriately adjusted so that the outer edge of the fixing bead 3 abuts against the inner edge of the glass frame 51 of the skylight to meet the visual aesthetics. At the same time, during the installation process, the light on one side of the light guide layer 2 After the incident surface abuts against the restricting block 16, the second adhesive layer 4B is adhered to the sunroof glass 5; thereby, because the light guide layer 2 will not touch the first light-emitting element 11A and the second light-emitting element during the installation process 11B, so each light-emitting element can be protected from damage.

The light-emitting device of the present invention is preferably provided with a coating C containing a first pattern C1 and a second pattern C2 on the first surface of the light guide layer 2, and a third pattern C3 is provided on the second surface, and the light-emitting module 1 A first light-emitting element 11A, a second light-emitting element 11B, and a third light-emitting element 11C are arranged. 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. The usage of this creation is explained as follows:

As shown in FIGS. 6 and 10, when the circuit is switched and only the first light-emitting element 11A emits ultraviolet light L1, only the first pattern C1 generates a fluorescent reaction to the ultraviolet light L1 to emit light, and the second pattern C2 Therefore, no fluorescent reaction is generated and no light is emitted, so that the luminous first pattern C1 reflects off the second surface of the light guide layer 2, and the occupants in the vehicle can see the first pattern on the sunroof when they look up. At the same time, the ultraviolet light L1 emitted by the first light-emitting element 11A is also reflected and refracted in the cavity 21 of the third pattern C3, so that the third pattern C3 also emits light and reflects off the second surface of the light guide layer 2. .

As shown in FIGS. 7 and 11, when the circuit is switched and only the second light-emitting element 11B emits infrared light L2, only the second pattern C2 produces a fluorescent reaction to the infrared light L2 and reflects light, and the first pattern C1 does not produce a fluorescent reaction and does not emit light, so that the luminous second pattern C2 reflects off the second surface of the light guide layer 2, and the occupants in the vehicle can see the second pattern on the sunroof when they look up. Since the infrared light L2 is invisible light, when only the second light-emitting element 11B emits the infrared light L2, the third pattern C1 does not emit light.

As shown in FIG. 8, when the circuit is switched and the first light-emitting element 11A emits ultraviolet light L1 and the second light-emitting element 11B emits infrared light L2 at the same time, the first pattern C1 generates a fluorescent reaction to the ultraviolet light L1 to emit light, and at the same time The second pattern C2 generates a fluorescent reaction to the infrared light L2 and emits light, and the ultraviolet light L1 is reflected and refracted by the concave hole 21 of the third pattern C3 to emit light, thereby simultaneously displaying the first pattern on the second surface of the light guide layer 2 C1, the second pattern C2, and the third pattern C3; the first pattern C1, the second pattern C2, and the third pattern C3 that are properly designed and matched can present a more three-dimensional visual effect through the distance between each other .

As shown in FIGS. 9 and 12, when the circuit is switched and only the third light-emitting element 11C emits the three primary colors of light L3, only the concave holes 21 of the third pattern C3 reflect and refract the three primary colors of light L3 to emit light. The first pattern C1 and the second pattern C2 do not produce fluorescent reaction and do not emit light, so that only the third pattern C3 is presented on the second side of the light guide layer 2, and the occupants in the car can see the third pattern on the sunroof when they look up . The third light-emitting element 11C can also be controlled to emit red, blue or green light separately or at the same time, so that the third pattern presents a more colorful visual effect.

The above is only for explaining the preferred embodiment of this creation, and is not an attempt to restrict this creation in any form. Therefore, any modification or change of this creation made under the same creative spirit , Should still be included in the scope of this creative intention protection.

1: Light-emitting module

10: Printed circuit board

11A: The first light-emitting element

11B: second light-emitting element

11C: The third light-emitting element

12: Current drive components

16: limit block

2: Light guide layer

3:Fixed bead

4B: The second adhesive layer

4C: The third adhesive layer

Claims (8)

A light-emitting device for an automobile sunroof capable of changing display patterns, including: A light guide layer, the first surface of which is provided with a coating layer provided with a first pattern, the first pattern is formed by a first ink that can produce a fluorescent reaction to ultraviolet light, and the surrounding of the first surface is also A first adhesive layer is provided, a third pattern is formed on the second surface of the light guide layer opposite to the first surface, and the third pattern is composed of a plurality of cavities that can reflect and refract light; A light-emitting module includes a printed circuit board, a plurality of first light-emitting elements arranged on the printed circuit board, and a plurality of limit blocks, the plurality of first light-emitting elements are used to emit ultraviolet light, and the plurality of A limit block is closer to one side of the printed circuit board than the plurality of first light-emitting elements; and A fixed bead on which the light-emitting module is provided so that the light incident edge of the light guide layer contacts the plurality of limiting blocks and is adjacent to the plurality of first light-emitting elements, and the fixed bead is also provided with a Second adhesive layer; Wherein, the light guide layer is fixed to the surface of the sunroof through the first adhesive layer, and the fixing bead is fixed to the surface of the sunroof through the second adhesive layer. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: The first light-emitting element is an ultraviolet light LED, and the third light-emitting element is a primary color light LED. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 2, wherein: The coating layer further includes a second pattern, the second pattern is formed of a second ink that can produce a fluorescent reaction to infrared light and does not overlap with the first pattern, and A plurality of second light-emitting elements are arranged on the printed circuit board, and the plurality of second light-emitting elements are used to emit infrared light, and the plurality of limit blocks are closer than the plurality of second light-emitting elements One side of the printed circuit board. Light-emitting device for automobile sunroof capable of changing display pattern as described in claim 3 Set, where, The second light emitting element is an infrared light LED. The light-emitting device for an automobile sunroof capable of changing a display pattern according to any one of claims 1 to 4, 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 manner. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 2, wherein: The plurality of first light-emitting elements are linearly arranged on the printed circuit board, and each of the limit blocks is disposed between a part of two adjacent first light-emitting elements. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 4, wherein: One said first light-emitting element, one said second light-emitting element, and one said third light-emitting element are arranged in sequence to form a light-emitting unit, a plurality of said light-emitting units are arranged linearly on said printed circuit board, and each The limiting block is arranged between the adjacent light emitting units. The light-emitting device for an automobile sunroof capable of changing a display pattern according to claim 1, wherein: A first protrusion and a second protrusion are formed on the upper surface of the fixing bead, a recess is formed between the first protrusion and the second protrusion, and the printed circuit board passes A third adhesive layer is fixed on the bottom surface of the recessed portion.

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