CN213339448U - Narrow-frame backlight source module for improving abnormal sound of diaphragm and vehicle-mounted display device - Google Patents
Narrow-frame backlight source module for improving abnormal sound of diaphragm and vehicle-mounted display device Download PDFInfo
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- CN213339448U CN213339448U CN202022753626.3U CN202022753626U CN213339448U CN 213339448 U CN213339448 U CN 213339448U CN 202022753626 U CN202022753626 U CN 202022753626U CN 213339448 U CN213339448 U CN 213339448U
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Abstract
The utility model provides an improve narrow frame backlight module of diaphragm abnormal sound, including the chase, the center, the reflector plate, light guide plate and optics diaphragm, the center is connected on the chase, form the holding chamber between chase and the center, the reflector plate, light guide plate and optics diaphragm set up at the holding intracavity, the optics diaphragm includes the diffusion barrier, membrane and brightness enhancement film, the diffusion barrier sets up on the light guide plate, the membrane sets up on the diffusion barrier, the brightness enhancement film sets up on the membrane, realize fixedly through the double faced adhesive tape between brightness enhancement film and the center. The utility model discloses an improve narrow frame backlight module of diaphragm abnormal sound can avoid the brightness enhancement film to produce the problem of rocking, abnormal sound because of fixed jail not. The utility model discloses still relate to an on-vehicle display device.
Description
Technical Field
The utility model relates to a display screen field, in particular to narrow frame backlight module and vehicle-mounted display device who improves diaphragm abnormal sound.
Background
With the rapid development of the automobile industry, the performance requirements of various automobile factories and complete automobile factories on vehicle-mounted backlights become higher and higher, such as high reliability requirements and no abnormal sound.
Fig. 1 is a schematic structural diagram of a conventional narrow-bezel backlight module, as shown in fig. 1, the narrow-bezel backlight module includes an iron frame 35, a middle frame 31, a reflector 34, a light guide plate 33, an optical film 32 and a single-sided adhesive 36, the middle frame 31 is connected to the iron frame 35, an accommodating cavity is formed between the iron frame 35 and the middle frame 31, the reflector 34, the light guide plate 33 and the optical film 32 are disposed in the accommodating cavity, the optical film 32 includes a diffuser film 323, a brightness enhancement film 322 and a brightness enhancement film 321, the diffuser film 323 is disposed on the light guide plate 33, the brightness enhancement film 322 is disposed on the diffuser film 323, the brightness enhancement film 321 is disposed on the brightness enhancement film 322, the brightness enhancement film 321 is adhered to one side of the single-sided adhesive 36, and the other side of the single-sided adhesive 36 opposite to the side, the diffusion film 323, the brightness enhancement film 322 and the brightness enhancement film 321 cannot be well fixed by the film fixing method, and the bright edge phenomenon of the film is easy to occur due to the narrow frame design of the backlight module; when the narrow-frame backlight module shakes sharply, the optical film 32 swings, and the brightness enhancement film 321 impacts the sidewall of the bezel 35 due to the swing and generates abnormal sound.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses a narrow frame backlight module of improvement diaphragm abnormal sound can avoid the brightness enhancement film to produce because of fixed not jail and rock, the problem of abnormal sound.
The utility model provides an improve narrow frame backlight module of diaphragm abnormal sound, including the chase, the center, the reflector plate, light guide plate and optics diaphragm, the center is connected on the chase, form the holding chamber between chase and the center, the reflector plate, light guide plate and optics diaphragm set up at the holding intracavity, the optics diaphragm includes the diffusion barrier, membrane and brightness enhancement film, the diffusion barrier sets up on the light guide plate, the membrane sets up on the diffusion barrier, the brightness enhancement film sets up on the membrane, realize fixedly through the double faced adhesive tape between brightness enhancement film and the center.
The utility model discloses in, above-mentioned double faced adhesive tape is located a side of brightness enhancement film and center.
The utility model discloses in, above-mentioned center includes the top frame, and the top frame sets up with the brightness enhancement film relatively, and double faced adhesive tape one side is connected in the internal surface that the top frame is close to the brightness enhancement film, and the double faced adhesive tape opposite side is connected in the brightness enhancement film.
The utility model discloses in, above-mentioned center still includes the side frame, and the top frame is connected with the side frame is perpendicular, and the side frame sets up round the circumference of chase, and the side frame realizes being connected dismantled and assembled through card hole, fixture block cooperation with the chase.
The utility model discloses in, above-mentioned narrow frame backlight module of improving diaphragm abnormal sound still includes the bubble celloidin, and the fixed connection of bubble celloidin is at the surface that the brightness enhancement film was kept away from to the top frame.
The utility model discloses in, the side that the double faced adhesive tape was kept away from to above-mentioned membrane that adds lustre to is connected with the single face sticky tape, and one side of single face sticky tape is pasted on the surface of membrane that adds lustre to, and the opposite side that the single face sticky tape is relative is pasted in the chase.
The utility model discloses in, the side of above-mentioned membrane of adding lustre to is equipped with pastes the breach, and the diffusion barrier exposes from pasting the breach, and the single face sticky tape pastes on membrane of adding lustre to and diffusion barrier through pasting the breach.
The utility model discloses in, above-mentioned narrow frame backlight module of improving diaphragm abnormal sound still includes silica gel, and silica gel locates between light guide plate and the chase, and silica gel is used for fastening the light guide plate.
The utility model discloses in, above-mentioned narrow frame backlight module of improving diaphragm abnormal sound still includes the lamp strip, and the lamp strip sets up with going into the light side of light guide plate relatively, and lamp strip fixed connection is on the inner wall of chase.
The utility model discloses still relate to an on-vehicle display device, including foretell narrow frame backlight module who improves the diaphragm abnormal sound.
The utility model discloses an improve narrow frame backlight module of diaphragm abnormal sound adds the double faced adhesive tape between brightness enhancement film and center, pastes fixedly between with brightness enhancement film and the center through the double faced adhesive tape, has avoided because of the fixed insecure problem of rocking, abnormal sound that produces of brightness enhancement film.
Drawings
Fig. 1 is a schematic structural diagram of a conventional narrow-bezel backlight module.
Fig. 2 is a schematic structural view of the narrow-frame backlight module for improving the abnormal sound of the diaphragm according to the present invention.
Fig. 3 is a schematic view of a cross-sectional structure of a view angle of the narrow-frame backlight module for improving the abnormal sound of the diaphragm according to the present invention.
Fig. 4 is a schematic cross-sectional view of another viewing angle of the narrow-framed backlight module for improving the abnormal sound of the diaphragm according to the present invention.
Detailed Description
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. 2 is the utility model discloses an improve structure schematic diagram of narrow frame backlight module of diaphragm abnormal sound, fig. 3 is the utility model discloses an improve the sectional structure schematic diagram of a narrow frame backlight module visual angle of diaphragm abnormal sound, as shown in fig. 2 and fig. 3, improve the narrow frame backlight module of diaphragm abnormal sound and include chase 15, middle frame 11, reflector plate 14, light guide plate 13 and optics diaphragm 12, middle frame 11 is connected on chase 15, form the holding chamber between chase 15 and the middle frame 11, reflector plate 14, light guide plate 13 and optics diaphragm 12 set up in the holding intracavity, optics diaphragm 12 includes diffusion barrier 123, brightness enhancement film 122 and brightness enhancement film 121(DBEF), diffusion barrier 123 sets up on light guide plate 13, brightness enhancement film 122 sets up on diffusion barrier 123, brightness enhancement film 121 sets up on brightness enhancement film 122, realize fixedly through double faced adhesive tape 113 between brightness enhancement film 121 and the middle frame 11. In this embodiment, the diffusion film 123 is provided with a folded edge, the folded edge is disposed around the circumference of the light guide plate 13, and the diffusion film 123 and the light guide plate 13 are fixedly connected by glue.
The utility model discloses an improve narrow frame backlight module of diaphragm abnormal sound adds double faced adhesive tape 113 between brightness enhancement film 121 and center 11, pastes fixedly through double faced adhesive tape 113 between with brightness enhancement film 121 and center 11, has avoided because of the fixed insecure problem of rocking, abnormal sound that produces of brightness enhancement film 121.
Further, the double-sided tape 113 is located at one side of the brightness enhancement film 121 and the middle frame 11.
Further, the middle frame 11 includes a top frame 111, the top frame 111 is disposed opposite to the brightness enhancement film 121, one side of the double-sided tape 113 is connected to the inner surface of the top frame 111 close to the brightness enhancement film 121, and the other side of the double-sided tape 113 is connected to the brightness enhancement film 121. In this embodiment, the top frame 111 is rectangular, the top frame 111 includes a first top plate, a second top plate, a third top plate and a fourth top plate, the first top plate and the second top plate are parallel and opposite to each other, the third top plate and the fourth top plate are parallel and opposite to each other, the first top plate and the second top plate are vertically connected to the third top plate and the fourth top plate, the first top plate, the second top plate, the third top plate and the fourth top plate are connected to form a window area, and the double-sided tape 113 is located at the first top plate.
Further, the middle frame 11 further includes a side frame 112, the top frame 111 is vertically connected with the side frame 112, the side frame 112 is arranged around the circumference of the iron frame 15, and the side frame 112 and the iron frame 15 are detachably connected through the matching of the clamping holes and the clamping blocks. In this embodiment, the side frame 112 is a rectangle, the side frame 112 includes first curb plate, the second curb plate, third curb plate and fourth curb plate, first curb plate is connected with first roof is perpendicular, the second curb plate is connected with the second roof is perpendicular, the third curb plate is connected with the third roof is perpendicular, the fourth curb plate is connected with the fourth roof is perpendicular, first curb plate, the second curb plate, the lateral wall of third curb plate and fourth curb plate all is equipped with the card hole, the lateral wall and the card hole of chase 15 correspond the position and all are equipped with the fixture block, after midframe 11 and chase 15 are connected with the fixture block through the card hole, use bordure 23 fixed midframe 11 and chase 15, ensure that the connection between midframe 11 and the chase 15 is more firm.
Furthermore, the narrow-frame backlight module for improving the abnormal sound of the diaphragm further comprises foam rubber 16, and the foam rubber 16 is fixedly connected to the outer surface, far away from the brightness enhancement film 121, of the top frame 111. In the present embodiment, the foam 16 is used for buffering and fixing the display screen.
Further, fig. 4 is the sectional structure schematic diagram of another visual angle of the narrow frame backlight module of the membrane abnormal sound of the utility model, as shown in fig. 4, one side edge of the bright enhancement film 122 far away from the double-sided adhesive tape 113 is connected with the single-sided adhesive tape 17, one side of the single-sided adhesive tape 17 is pasted on the surface of the bright enhancement film 122, and the opposite side of the single-sided adhesive tape 17 is pasted on the chase 15. In this embodiment, two single-sided tapes 17 are provided, the two single-sided tapes 17 are located on the same side, the two single-sided tapes 17 are disposed at an interval, and the single-sided tapes 17 are used for fixing the brightness enhancement film 122.
Furthermore, the side edge of the bright enhancement film 122 is provided with an attaching notch 101, the diffusion film 123 is exposed from the attaching notch 101, and the single-sided tape 17 is attached to the bright enhancement film 122 and the diffusion film 123 through the attaching notch 101. In this embodiment, two adhering notches 101 are provided, the two adhering notches 101 are provided corresponding to the two single-sided tapes 17, and the width of the adhering notch 101 is smaller than the length of the single-sided tape 17.
Further, improve narrow frame backlight module of diaphragm abnormal sound still includes silica gel 18, and silica gel 18 is located between light guide plate 13 and chase 15, and silica gel 18 is used for fastening light guide plate 13. In this embodiment, the iron frame 15 is provided with silica gel 18 in a major axis direction and a minor axis direction, a side of the silica gel 18 close to the iron frame 15 is provided with glue, the silica gel 18 is adhered to the inner side wall of the iron frame 15 through the glue, and the other side of the silica gel 18 abuts against the side wall of the light guide plate 13.
Further, improve the narrow frame backlight module of diaphragm abnormal sound and still include lamp strip 19, lamp strip 19 sets up with light guide plate 13's income light side is relative, and lamp strip 19 fixed connection is on the inner wall of chase 15. In this embodiment, through heat conduction single-sided adhesive 21 fixed connection between the inner wall of lamp strip 19 and chase 15, one side that lamp strip 19 is close to chase 15 inner wall still is equipped with insulating tape 22, and insulating tape 22 pastes the inside wall at chase 15, and insulating tape 22 makes lamp strip 19 and chase 15 between insulating, avoids appearing phenomena such as short circuit.
The utility model discloses still relate to an on-vehicle display device, including foretell narrow frame backlight module who improves the diaphragm abnormal sound. In the present embodiment, the on-vehicle display device is, for example, an on-vehicle instrument, an on-vehicle center control display, an on-vehicle drive recorder, an on-vehicle DVD navigation, an on-vehicle console integrated display screen, an on-vehicle streaming rear view mirror, an automobile seat headrest display, or the like, but is not limited thereto.
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. A narrow-frame backlight module for improving abnormal sound of a diaphragm is characterized by comprising an iron frame (15), a middle frame (11), a reflector plate (14), a light guide plate (13) and an optical diaphragm (12), the middle frame (11) is connected on the iron frame (15), an accommodating cavity is formed between the iron frame (15) and the middle frame (11), the reflector plate (14), the light guide plate (13) and the optical film (12) are arranged in the accommodating cavity, the optical film (12) comprises a diffusion film (123), a brightness enhancement film (122) and a brightness enhancement film (121), the diffusion film (123) is arranged on the light guide plate (13), the brightness enhancement film (122) is arranged on the diffusion film (123), the brightness enhancement film (121) is arranged on the brightness enhancement film (122), and the brightness enhancement film (121) and the middle frame (11) are fixed through a double-sided adhesive tape (113).
2. The narrow-bezel backlight module for improving the abnormal sound of the diaphragm as claimed in claim 1, wherein the double-sided tape (113) is disposed at one side of the brightness enhancement film (121) and the middle bezel (11).
3. The backlight module with a narrowed frame for improving abnormal sound of a diaphragm as claimed in claim 2, wherein the middle frame (11) comprises a top frame (111), the top frame (111) is disposed opposite to the brightness enhancement film (121), one side of the double-sided tape (113) is connected to the inner surface of the top frame (111) close to the brightness enhancement film (121), and the other side of the double-sided tape (113) is connected to the brightness enhancement film (121).
4. The narrow-bezel backlight module for improving the abnormal sound of the diaphragm as recited in claim 3, wherein the middle frame (11) further comprises a side frame (112), the top frame (111) is vertically connected to the side frame (112), the side frame (112) is disposed around the periphery of the iron frame (15), and the side frame (112) and the iron frame (15) are detachably connected through a clamping hole and a clamping block.
5. The film noise reducing narrow-border backlight module of claim 3, further comprising a foam (16), wherein the foam (16) is fixedly attached to an outer surface of the top frame (111) away from the brightness enhancement film (121).
6. The backlight module with a narrowed frame for improving the abnormal sound of the diaphragm according to claim 2, wherein one side of the brightness enhancement film (122) far away from the double-sided adhesive tape (113) is connected with a single-sided adhesive tape (17), one side of the single-sided adhesive tape (17) is adhered to the surface of the brightness enhancement film (122), and the other side of the single-sided adhesive tape (17) opposite to the iron frame (15).
7. The backlight module with the narrowed frame for improving the abnormal sound of the diaphragm as claimed in claim 6, wherein the side edge of the brightness enhancement film (122) is provided with an adhering notch (101), the diffusion film (123) is exposed from the adhering notch (101), and the single-sided tape (17) is adhered to the brightness enhancement film (122) and the diffusion film (123) through the adhering notch (101).
8. The narrow-border backlight module for improving the abnormal sound of the diaphragm of claim 1, further comprising a silica gel (18), wherein the silica gel (18) is disposed between the light guide plate (13) and the bezel (15), and the silica gel (18) is used for fastening the light guide plate (13).
9. The narrow-border backlight module for improving the abnormal sound of the diaphragm of claim 1, further comprising a light bar (19), wherein the light bar (19) is disposed opposite to the light incident side of the light guide plate (13), and the light bar (19) is fixedly connected to the inner wall of the bezel (15).
10. An in-vehicle display device, comprising the narrow-bezel backlight module for improving the membrane abnormal sound according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022753626.3U CN213339448U (en) | 2020-11-24 | 2020-11-24 | Narrow-frame backlight source module for improving abnormal sound of diaphragm and vehicle-mounted display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022753626.3U CN213339448U (en) | 2020-11-24 | 2020-11-24 | Narrow-frame backlight source module for improving abnormal sound of diaphragm and vehicle-mounted display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213339448U true CN213339448U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022753626.3U Active CN213339448U (en) | 2020-11-24 | 2020-11-24 | Narrow-frame backlight source module for improving abnormal sound of diaphragm and vehicle-mounted display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213339448U (en) |
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- 2020-11-24 CN CN202022753626.3U patent/CN213339448U/en active Active
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