CN214253703U - Vehicle-mounted backlight module without middle frame and vehicle-mounted display device - Google Patents
Vehicle-mounted backlight module without middle frame and vehicle-mounted display device Download PDFInfo
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- CN214253703U CN214253703U CN202120505595.1U CN202120505595U CN214253703U CN 214253703 U CN214253703 U CN 214253703U CN 202120505595 U CN202120505595 U CN 202120505595U CN 214253703 U CN214253703 U CN 214253703U
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- vehicle
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- backlight module
- light
- guide plate
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- 239000010408 film Substances 0.000 claims description 42
- 239000012788 optical film Substances 0.000 claims description 15
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- 238000006073 displacement reaction Methods 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
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- 239000002390 adhesive tape Substances 0.000 description 4
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
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- 238000004026 adhesive bonding Methods 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model provides a no on-vehicle backlight module of center, includes underframe, light guide plate and optics diaphragm, and the underframe includes the bottom plate and connects the frame on the bottom plate, optics diaphragm and light guide plate fixed connection, light guide plate and bottom plate fixed connection, and the frame is equipped with the locating hole, optics diaphragm be equipped with locating hole complex locating piece, optics diaphragm pass through locating piece and locating hole cooperation and frame fixed connection. The utility model discloses a vehicle-mounted backlight module of no center has reduced manufacturing cost, has improved production efficiency. The utility model discloses still relate to an on-vehicle display device.
Description
Technical Field
The utility model relates to an illumination display device technical field, in particular to on-vehicle backlight module and on-vehicle display device of no center.
Background
At present, a conventional vehicle-mounted backlight module comprises a bottom frame, a middle frame, a light source, an optical diaphragm and the like, wherein the light source and the optical diaphragm are respectively fixed in the bottom frame, then the middle frame is fixed with the bottom frame, and one side of the middle frame is used for fixing a display panel; the other side of the middle frame is used for pressing the optical diaphragm and other parts, so that the optical diaphragm and other parts cannot fall off.
However, as the size of the on-vehicle display screen becomes larger, the number of uses becomes larger. Therefore, the number of the vehicle-mounted backlight modules is increased, and each part of the vehicle-mounted backlight module is also increased. And then not only caused the cost increase of on-vehicle backlight module, technology loaded down with trivial details and production efficiency low, still made the total cost greatly increased of car.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a no on-vehicle backlight module of center has reduced manufacturing cost, has improved production efficiency.
The utility model provides a no on-vehicle backlight module of center, includes underframe, light guide plate and optics diaphragm, and the underframe includes the bottom plate and connects the frame on the bottom plate, optics diaphragm and light guide plate fixed connection, light guide plate and bottom plate fixed connection, and the frame is equipped with the locating hole, optics diaphragm be equipped with locating hole complex locating piece, optics diaphragm pass through locating piece and locating hole cooperation and frame fixed connection.
In an embodiment of the present invention, the frame includes a mounting surface for fixing the cover plate, and the mounting surface is parallel to the bottom plate.
In an embodiment of the present invention, the mounting surface is provided with a plurality of grooves, a plurality of grooves are arranged around the circumference of the frame, supporting blocks are fixed in the grooves, and each supporting block protrudes from the mounting surface.
The utility model discloses an in the embodiment, above-mentioned installation face is equipped with the breach that supplies the winding displacement to stretch out, be equipped with fixedly in the breach the fixed glue and the shutoff of winding displacement the dust keeper of breach works as the winding displacement is followed when the breach stretches out, the winding displacement with the fixed glue is connected, the dust keeper is pressed on the winding displacement.
In an embodiment of the present invention, the surface of the positioning block is covered with a light shielding film.
The utility model discloses an in the embodiment, above-mentioned on-vehicle backlight module that does not have center still includes the sticky tape of borduring that prevents the light leak, the sticky tape of borduring is connected on the frame, and cover the locating hole.
The embodiment of the utility model provides an in, above-mentioned on-vehicle backlight module that does not have center still includes a plurality of being used for fixing the flexible piece of light guide plate, it is a plurality of the flexible piece round the circumference setting of light guide plate, each the flexible piece support lean on in the light guide plate with between the frame.
The utility model discloses an in the embodiment, above-mentioned on-vehicle backlight module that does not have center still includes the circuit board, electric connection has the light source on the circuit board, the circuit board is fixed on the lateral wall of frame, the light guide plate is including going into the light terminal surface, go into the light terminal surface with the light source sets up relatively.
The utility model discloses an in the embodiment, above-mentioned on-vehicle backlight module that does not have center still includes the shading sticky tape, the shading sticky tape is fixed on the blooming piece, the both ends of shading sticky tape are fixed in the frame, the shading sticky tape is located go into the top of light terminal surface.
The utility model also provides an on-vehicle display device, including apron, display screen and foretell no center's on-vehicle backlight module, display screen fixed connection in the apron, apron fixed connection be in on the frame.
The optical diaphragm of the vehicle-mounted backlight source module without the middle frame is matched with the positioning hole through the positioning block and is fixedly connected with the frame, and the optical diaphragm is also fixedly connected with the light guide plate; the light guide plate is fixedly connected with the bottom plate. Therefore, the vehicle-mounted backlight module without the middle frame does not need to be provided with the middle frame for fastening the optical film and the light guide plate, the manufacturing cost is reduced, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic view of a split structure of the vehicle-mounted backlight module without a middle frame.
Fig. 2 is an enlarged schematic structural view of the first reflective film, the second reflective film, and the third reflective film of the present invention.
Fig. 3 is an enlarged schematic structural view of the bottom frame of the present invention.
Detailed Description
The application provides a vehicle-mounted backlight module without a middle frame.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to facilitate understanding of those skilled in the art, the present application provides a specific implementation process of the technical solution provided by the present application through the following embodiments.
Fig. 1 is the utility model discloses a split structure schematic diagram of on-vehicle backlight module of no center, fig. 2 is the utility model discloses an enlarged structure schematic diagram of first reflectance coating, second reflectance coating and third reflectance coating, fig. 3 is the utility model discloses an enlarged structure schematic diagram of underframe, please refer to fig. 1 to 3, the on-vehicle backlight module of no center includes underframe 11, light guide plate 12 and optical film piece 13, underframe 11 includes bottom plate 111 and connects frame 112 on bottom plate 111, optical film piece 13 and light guide plate 12 fixed connection, light guide plate 12 and bottom plate 111 fixed connection, frame 112 is equipped with locating hole 101, optical film piece 13 is equipped with locating piece 13a with locating hole 101 complex, optical film piece 13 is through locating piece 13a and locating hole 101 cooperation and frame 112 fixed connection. In this embodiment, the bottom plate 111 and/or the frame 112 are made of metal materials, such as: the bottom plate 111 and/or the frame 112 are made of AL5052 series aluminum alloy, and the thickness is 1.2-1.5 mm; but not limited thereto, for example: the bottom plate 111 and/or the frame 112 may also be made of plastic.
The optical diaphragm 13 of the vehicle-mounted backlight module without the middle frame of the present invention is matched with the positioning hole 101 through the positioning block 13a and is fixedly connected with the frame 112, and the optical diaphragm 13 is also fixedly connected with the light guide plate 12; the light guide plate 12 is fixedly connected to the bottom plate 111. Therefore, the vehicle-mounted backlight module without the middle frame does not need to be provided with the middle frame for fastening the optical film 13 and the light guide plate 12, so that the manufacturing cost is reduced, and the production efficiency is improved.
Further, the frame 112 is provided with a plurality of positioning holes 101, and the plurality of positioning holes 101 are arranged on the frame 112 at intervals; the optical film 13 is provided with a plurality of positioning blocks 13a matching with the positioning holes 101, and each positioning block 13a is fixed in each positioning hole 101. In the present embodiment, the positioning hole 101 is elongated, and the positioning hole 101 penetrates through the frame 112 or does not penetrate through the frame 112.
Further, the frame 112 is a hollow cuboid, but not limited thereto, for example, the frame 112 is a hollow column. In this embodiment, the frame 112 includes a first inner side surface and a second inner side surface which are oppositely disposed, and a third inner side surface and a fourth inner side surface which are connected between the first inner side surface and the second inner side surface, wherein one of the first inner side surface, the second inner side surface, the third inner side surface and the fourth inner side surface is used for fixing the light source, and the other three inner side surfaces can be provided with the positioning holes 101.
Further, the frame 112 is connected with the bottom plate 111 to form the accommodating cavity 102, and the light guide plate 12 and the optical film 13 are located in the accommodating cavity 102.
Further, the optical film 13 is, for example, one or more of a diffusion film 131, a brightness enhancement film 132, a brightness enhancement film, or a peep-proof film 133. In this embodiment, the optical film 13 includes a diffusion film 131, a brightness enhancement film 132, and a privacy film 133, the diffusion film 131, the brightness enhancement film 132, and the privacy film 133 are each provided with a positioning block 13a having the same size and shape, and the diffusion film 131, the brightness enhancement film 132, and the privacy film 133 are bonded together by an adhesive tape.
Further, as shown in fig. 2, the vehicle-mounted backlight module without the center frame further includes a first reflective film 14, a second reflective film 15, and a third reflective film 16, the first reflective film 14 is rectangular, the second reflective film 15 and the third reflective film 16 are respectively in a strip shape, the second reflective film 15 and the third reflective film 16 are respectively connected above the first reflective film 14, two third reflective films 16 are provided in total, the second reflective film 15 is connected between the two third reflective films 16, and the first reflective film 14, the second reflective film 15, and the third reflective film 16 are connected with the light guide plate 12 to form a whole, thereby improving the utilization rate of light of the vehicle-mounted backlight module without the center frame. In the present embodiment, the bottom surface of the light guide plate 12 facing the bottom plate 111 is connected with the first reflective film 14 and the first reflective film 14 covers the bottom surface of the light guide plate 12; the side surface of the light guide plate 12 facing the positioning hole 101 is connected with a second reflection film 15, and the second reflection film 15 covers the side surface of the light guide plate 12 facing the positioning hole 101; the third reflective film 16 is attached to both side surfaces of the light guide plate 12 near the positioning hole 101 and the third reflective film 16 covers both side surfaces of the light guide plate 12 near the positioning hole 101.
Further, the vehicle-mounted backlight module without the middle frame further comprises a double-sided adhesive tape 17, one side of the double-sided adhesive tape 17 is fixedly connected with the bottom plate 111, and the other side of the double-sided adhesive tape 17 is fixedly connected with the first reflection film 14.
Further, the frame 112 includes a mounting surface 1121 for fixing a cover (not shown), and the mounting surface 1121 is parallel to the base plate 111. In this embodiment, the cap plate comprises a TP cap plate. The TP cover plate can be directly bonded and fixed with the mounting surface 1121 by gluing or gluing, so that a middle frame for bearing the TP cover plate does not need to be separately arranged, the cost of the middle frame is reduced, and meanwhile, the production process is also reduced.
Further, the mounting surface 1121 is provided with a plurality of grooves 103, the plurality of grooves 103 are arranged around the circumference of the frame 112, a supporting block 18 is fixed in each groove 103, and each supporting block 18 protrudes from the mounting surface 1121. The support block 18 includes, for example, silicone, rubber, and plastic. In the present embodiment, the support block 18 is preferably silicone, and has a height of 0.3 to 0.5 mm; due to the design, a fixed height difference can be formed between the mounting surface 1121 and the periphery of the cover plate, so that the problem that the overall thickness of the vehicle-mounted backlight module without the middle frame is inconsistent due to uneven thickness of the glue between the mounting surface 1121 and the cover plate is avoided, and the brightness of the vehicle-mounted backlight module without the middle frame is not uniform during work.
Furthermore, the mounting surface 1121 is provided with a notch 104 for extending a flat cable (not shown), the notch 104 is provided with a fixing glue (not shown) for fixing the flat cable and a dust-proof member 21 for blocking the notch 104, when the flat cable extends from the notch 104, the flat cable is connected with the fixing glue, and the dust-proof member 21 is pressed on the flat cable. The dust-proof member 21 includes foam adhesive, sealant or dust-proof adhesive, and in this embodiment, the foam adhesive is preferably used, and after the gap 104 is sealed by the foam adhesive, impurities such as dust and water can be prevented from entering the interior of the vehicle-mounted backlight module without the middle frame, so that the display brightness of the vehicle-mounted backlight module without the middle frame is affected; or cause a short circuit of the line of the vehicle-mounted backlight module without the middle frame, which affects the quality reliability of the vehicle-mounted backlight module without the middle frame.
Further, the surface of the positioning block 13a is covered with a light shielding film 22. In this embodiment, the light shielding film 22 includes black glue for absorbing light, which can prevent the problem of optical reflection or refraction due to the uneven edge of the optical film 13, so that the light of each edge of the optical film 13 is consistent and no bright line is generated.
Further, the vehicle-mounted backlight module without the middle frame further comprises a taping tape 23 for preventing light leakage, and the taping tape 23 is connected to the frame 112 and covers the positioning hole 101. In this embodiment, the edge-covering glue is, for example, a light-leakage-preventing black-and-white glue, and the black-and-white glue can prevent light leakage of the vehicle-mounted backlight without the middle frame and can seal the positioning hole 101.
Further, the vehicle-mounted backlight module without the center frame further includes a plurality of flexible blocks (not shown) for fixing the light guide plate 12, the plurality of flexible blocks are disposed around the circumference of the light guide plate 12, and each flexible block abuts between the light guide plate 12 and the bezel 112. The flexible piece includes silica gel, rubber and plastic etc. and in this embodiment, the preferred silica gel of flexible piece adopts silica gel to support to lean on and to prevent between light guide plate 12 and frame 112 that light guide plate 12 from shaking about, also can not easily fall out when making light guide plate 12 overturn from top to bottom on underframe 11 simultaneously.
Further, the vehicle-mounted backlight module without the middle frame further includes a circuit board 24, a light source (not shown) is electrically connected to the circuit board 24, the circuit board 24 is fixed on the side wall of the frame 112, and the light guide plate 12 includes a light incident end surface, and the light incident end surface is opposite to the light source. In the present embodiment, the circuit board 24 includes a flexible board, such as an FPC, but not limited thereto, and for example, the circuit board 24 further includes a hard board, such as a PCB or a ceramic board, etc
Further, the light source is, for example, a light emitting diode.
Further, the vehicle-mounted backlight module without the middle frame further includes a heat conducting adhesive 25, and the circuit board 24 is fixed on the side wall of the frame 112 by the heat conducting adhesive 25.
Further, the vehicle-mounted backlight module without the middle frame further includes an insulating adhesive 26, the insulating adhesive 26 is located between the circuit board 24 and the bottom plate 111, and the insulating adhesive 26 is fixed on the bottom plate 111, so that the circuit board 24 is insulated from the bottom plate 111.
Further, the vehicle-mounted backlight module without the middle frame further includes a light-shielding tape 27, the light-shielding tape 27 is fixed on the optical film 13, two ends of the light-shielding tape 27 are fixed on the frame 112, and the light-shielding tape 27 is located above the light-incident end face. In the present embodiment, the light shielding glue is, for example, foam glue, and the foam glue is used for shielding the light emitted from the light source toward the mounting surface 1121, so that the light received by the light incident end surface is more uniform, and the stability of the optical film 13 is further increased on this side.
The utility model discloses still relate to an on-vehicle display device, including apron, display screen and foretell no center's on-vehicle backlight module, display screen fixed connection is in the apron, and apron fixed connection is on frame 112. In the embodiment, the vehicle-mounted display device comprises a vehicle display screen, a vehicle-mounted central control, a vehicle-mounted instrument display and the like.
The utility model discloses not be limited to the specific details among the above-mentioned embodiment the utility model discloses a within the technical idea scope, can be right the technical scheme of the utility model carry out multiple simple variant, these simple variants all belong to the utility model discloses a protection scope. The various features described in the foregoing detailed description may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
Claims (10)
1. The utility model provides a no on-vehicle backlight module of center, characterized in that, includes underframe (11), light guide plate (12) and optics diaphragm (13), underframe (11) include bottom plate (111) and connect frame (112) on bottom plate (111), optics diaphragm (13) with light guide plate (12) fixed connection, light guide plate (12) with bottom plate (111) fixed connection, frame (112) are equipped with locating hole (101), optics diaphragm (13) be equipped with locating hole (101) complex locating piece (13a), optics diaphragm (13) pass through locating piece (13a) with locating hole (101) cooperation with frame (112) fixed connection.
2. The vehicle-mounted backlight module without a center frame of claim 1, wherein the frame (112) comprises a mounting surface (1121) for fixing the cover plate, and the mounting surface (1121) is parallel to the bottom plate (111).
3. The frameless vehicle-mounted backlight module of claim 2, wherein the mounting surface (1121) is provided with a plurality of grooves (103), the plurality of grooves (103) are arranged around the circumference of the frame (112), a supporting block (18) is fixed in each groove (103), and each supporting block (18) protrudes from the mounting surface (1121).
4. The vehicle-mounted backlight module without the center frame according to claim 2, wherein the mounting surface (1121) is provided with a notch (104) for the flat cable to extend out, a fixing adhesive for fixing the flat cable and a dust-proof member (21) for plugging the notch (104) are arranged in the notch (104), when the flat cable extends out of the notch (104), the flat cable is connected with the fixing adhesive, and the dust-proof member (21) presses on the flat cable.
5. The vehicle-mounted backlight module without a middle frame according to claim 1, wherein a light shielding film (22) covers a surface of the positioning block (13 a).
6. The vehicle-mounted backlight module without the middle frame as claimed in claim 1, further comprising a taping tape (23) for preventing light leakage, wherein the taping tape (23) is connected to the frame (112) and covers the positioning hole (101).
7. The frameless vehicle backlight module of claim 1, further comprising a plurality of flexible blocks for fixing the light guide plate (12), wherein the plurality of flexible blocks are arranged around the circumference of the light guide plate (12), and each flexible block abuts between the light guide plate (12) and the bezel (112).
8. The vehicle-mounted backlight module without the middle frame as claimed in claim 1, wherein the vehicle-mounted backlight module without the middle frame further comprises a circuit board (24), the circuit board (24) is electrically connected with a light source, the circuit board (24) is fixed on a side wall of the frame (112), and the light guide plate (12) comprises a light incident end surface, and the light incident end surface is arranged opposite to the light source.
9. The vehicle-mounted backlight module without a middle frame of claim 8, further comprising a light-shielding tape (27), wherein the light-shielding tape (27) is fixed on the optical film (13), two ends of the light-shielding tape (27) are fixed on the frame (112), and the light-shielding tape (27) is located above the light-incident end face.
10. An on-vehicle display device, characterized in that, includes apron, display screen and the on-vehicle backlight module of no center of claims 1 to 9, the display screen fixed connection in the apron, the apron fixed connection is in on the frame (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120505595.1U CN214253703U (en) | 2021-03-09 | 2021-03-09 | Vehicle-mounted backlight module without middle frame and vehicle-mounted display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120505595.1U CN214253703U (en) | 2021-03-09 | 2021-03-09 | Vehicle-mounted backlight module without middle frame and vehicle-mounted display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214253703U true CN214253703U (en) | 2021-09-21 |
Family
ID=77727657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120505595.1U Active CN214253703U (en) | 2021-03-09 | 2021-03-09 | Vehicle-mounted backlight module without middle frame and vehicle-mounted display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214253703U (en) |
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2021
- 2021-03-09 CN CN202120505595.1U patent/CN214253703U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Vehicle mounted backlight module without middle frame and vehicle mounted display device Effective date of registration: 20211230 Granted publication date: 20210921 Pledgee: Shenzhen small and medium sized small loan Co.,Ltd. Pledgor: SHENZHEN HADBEST ELECTRONICS CO.,LTD. Registration number: Y2021440020148 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231013 Granted publication date: 20210921 Pledgee: Shenzhen small and medium sized small loan Co.,Ltd. Pledgor: SHENZHEN HADBEST ELECTRONICS CO.,LTD. Registration number: Y2021440020148 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |