CN215265337U - Backlight module for preventing flexible circuit board from being damaged and vehicle-mounted display device - Google Patents
Backlight module for preventing flexible circuit board from being damaged and vehicle-mounted display device Download PDFInfo
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- CN215265337U CN215265337U CN202121078814.9U CN202121078814U CN215265337U CN 215265337 U CN215265337 U CN 215265337U CN 202121078814 U CN202121078814 U CN 202121078814U CN 215265337 U CN215265337 U CN 215265337U
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- circuit board
- flexible circuit
- guide plate
- light guide
- backlight module
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Abstract
The utility model provides a prevent damaged backlight module of flexible circuit board, includes flexible circuit board and light guide plate, and the flexible circuit board sets up in the income light side of light guide plate, is fixed with first compartment membrane, second interval membrane and a plurality of light source on the flexible circuit board, and each light source sets up with the income light side of light guide plate is relative, and the income light side of light guide plate is fixed with first lug and second lug, and first lug supports and leans on in first compartment membrane, and the second lug supports and leans on in second interval membrane. In view of this, the utility model discloses a prevent the damaged backlight module of flexible circuit board can prevent that the flexible circuit board is damaged, avoids the circuit disconnection of flexible circuit board. The utility model discloses still relate to an on-vehicle display device.
Description
Technical Field
The utility model relates to a display screen technical field, in particular to prevent damaged backlight module of flexible circuit board and on-vehicle display device.
Background
At present, the multi-screen development of the automobile display screen brings new opportunities for the development of panel enterprises, panel manufacturers seize the market segment of automobile display in succession, and because the market potential of the automobile terminal in China is huge and the development prospect is wide, the market demand of the automobile display is directly driven, the requirement of the automobile display screen on the aspect of electric function display is strict, especially the requirement on the circuit fracture of an automobile backlight is strict, and the circuit damage, the fracture and the open circuit are caused after the light guide plate of the automobile backlight collides with an FPC (flexible printed circuit).
Traditional on-vehicle backlight FPC and light guide plate direct contact do not adopt any safeguard measure, and such structure appears the strong vibration back when the backlight module, and the boss collision FPC of light guide plate leads to FPC damaged back phenomenon that the circuit breaks away from appearing easily, arouses on-vehicle display screen black screen, can directly influence navigating mate's driving safety.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model discloses a prevent the damaged backlight module of flexible circuit board can prevent that the flexible circuit board is damaged, avoids the circuit disconnection of flexible circuit board.
The utility model provides a prevent damaged backlight module of flexible circuit board, includes flexible circuit board and light guide plate, and the flexible circuit board sets up in the income light side of light guide plate, is fixed with first compartment membrane, second interval membrane and a plurality of light source on the flexible circuit board, and each light source sets up with the income light side of light guide plate is relative, and the income light side of light guide plate is fixed with first lug and second lug, and first lug supports and leans on in first compartment membrane, and the second lug supports and leans on in second interval membrane.
The utility model discloses in, form between above-mentioned first lug and the second lug and dodge the interval of dodging of each light source, each light source corresponds dodges interval setting, and each light source is located between first compartment membrane and the second compartment membrane.
The utility model discloses in, above-mentioned first compartment membrane sets up with the second compartment membrane along the mutual interval of length direction of flexible circuit board, and just first compartment membrane is located between arbitrary two adjacent light sources, and the second compartment membrane is located between arbitrary two adjacent light sources.
The utility model discloses in, above-mentioned light guide plate is the rectangle, and a apex angle setting that first lug is close to the light guide plate, and the second lug is close to another apex angle setting of light guide plate.
The utility model discloses in, the area of above-mentioned first compartment membrane is more than or equal to the area of first lug and first compartment membrane contact, and the area of second compartment membrane is more than or equal to the area of second lug and the contact of second compartment membrane.
In the utility model, the thickness of the first spacing film is 0.03 mm-0.2 mm; the thickness of the second diaphragm is 0.03 mm-0.2 mm.
The utility model discloses in, above-mentioned prevent damaged backlight module of flexible circuit board still includes down the chase, and the chase includes bottom plate and fixed connection side frame on the bottom plate down, and flexible circuit board fixes on the side frame, and the light guide plate setting is on the bottom plate.
The utility model discloses in, above-mentioned prevent that damaged backlight module of flexible circuit board still includes the center, the center is round the circumference setting of chase down, realizes being connected through fixture block and card hole cooperation between center and the side frame.
The utility model discloses in, above-mentioned prevent that damaged backlight module of flexible circuit board still includes reflectance coating and optics diaphragm, and on the bottom plate was located to the reflectance coating, on the reflectance coating was located to the light guide plate, optics diaphragm was located on the light guide plate.
A vehicle-mounted display device comprises the backlight source module for preventing the flexible circuit board from being damaged.
The utility model discloses a prevent that damaged backlight module of flexible circuit board from supporting the first lug of light guide plate to lean on in first compartment membrane, support the second lug of light guide plate to lean on in second compartment membrane, avoid the direct and flexible circuit board contact of first lug and the second lug of light guide plate, damage flexible circuit board when preventing light guide plate and flexible circuit board collision contact, the black screen phenomenon that the backlight module produced at strong vibration in-process has been solved, the protection protective screen between light guide plate and the flexible circuit board has been increased, the quality of product is improved, the driving experience of navigating mate's safe driving is improved.
Drawings
Fig. 1 is a schematic bottom view of a light guide plate and a flexible printed circuit board according to a first embodiment of the present invention.
Fig. 2 is a schematic top view of a flexible circuit board and a flexible circuit board according to a first embodiment of the present invention.
Fig. 3 is a schematic view of a split structure of the backlight module according to the first embodiment of the present invention for preventing the flexible circuit board from being damaged.
Fig. 4 is a schematic top view of a light guide plate and a flexible circuit board according to a second embodiment of 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.
First embodiment
Fig. 1 is the utility model discloses the structure schematic diagram is looked from bottom to light guide plate and flexible circuit board of first embodiment, fig. 2 is the utility model discloses the first embodiment with the overlook structure schematic diagram of flexible circuit board, as shown in fig. 1 and fig. 2, prevent that the damaged backlight module of flexible circuit board from including flexible circuit board 11 and light guide plate 14, flexible circuit board 11 sets up in the income light side of light guide plate 14, be fixed with first compartment membrane 12 on the flexible circuit board 11, second compartment membrane 13 and a plurality of light source 15, each light source 15 sets up with the income light side of light guide plate 14 relatively, the income light side of light guide plate 14 is fixed with first lug 141 and second lug 142, first lug 141 supports and leans on in first compartment membrane 12, second lug 142 supports and leans on in second compartment membrane 13.
The utility model discloses a prevent that damaged backlight module of flexible circuit board from leaning on the first lug 141 of light guide plate 14 in first compartment membrane 12, support the second lug 142 of light guide plate 14 in second compartment membrane 13, avoid the direct and flexible circuit board 11 contacts of first lug 141 and the second lug 142 of light guide plate 14, damage flexible circuit board 11 when preventing light guide plate 14 and flexible circuit board 11 collision contact, the black screen phenomenon that the backlight module produced at the strong vibration in-process has been solved, the protection protective screen between light guide plate 14 and the flexible circuit board 11 has been increased, the quality of product has been improved, the driving experience of navigating mate's safe driving has been improved.
Further, an escape section 101 for escaping each light source 15 is formed between the first bump 141 and the second bump 142, each light source 15 is provided corresponding to the escape section 101, and each light source 15 is located between the first spacer film 12 and the second spacer film 13.
Further, the light guide plate 14 is rectangular, the first protrusion 141 is disposed near one corner of the light guide plate 14, and the second protrusion 142 is disposed near the other corner of the light guide plate 14.
In another preferred embodiment, the first bump 141 is disposed at one end of the light incident side of the light guide plate 14, and the second bump 142 is disposed at the other end of the light incident side of the light guide plate 14.
Further, the area of the first spacer film 12 is greater than or equal to the area of the first bump 141 in contact with the first spacer film 12, and the area of the second spacer film 13 is greater than or equal to the area of the second bump 142 in contact with the second spacer film 13. In the embodiment, the length of the first spacer film 12 is 2mm to 7mm, the length of the first spacer film 12 is, for example, 2mm, 3mm, 4mm, 5mm, 6mm, or 7mm, the width of the first spacer film 12 is, for example, 2mm to 7mm, and the width of the first spacer film 12 is, for example, 2mm, 3mm, 4mm, 5mm, 6mm, or 7 mm; the length of the second separation film 13 is 2mm to 7mm, the length of the second separation film 13 is, for example, 2mm, 3mm, 4mm, 5mm, 6mm, or 7mm, the width of the second separation film 13 is 2mm to 7mm, and the width of the second separation film 13 is, for example, 2mm, 3mm, 4mm, 5mm, 6mm, or 7mm, but the invention is not limited thereto.
Further, the thickness of the first spacer film 12 is 0.03mm to 0.2 mm; the thickness of the second separator 13 is 0.03mm to 0.2 mm. In the present embodiment, the thickness of the first spacer film 12 is, for example, 0.03mm, 0.05mm, 0.09mm, 0.12mm, 0.15mm, 0.18mm, or 0.2mm, and the thickness of the second spacer film 13 is, for example, 0.03mm, 0.05mm, 0.09mm, 0.12mm, 0.15mm, 0.18mm, or 0.2mm, but the invention is not limited thereto.
Fig. 3 is a schematic view of a split structure of a backlight module for preventing a flexible circuit board from being damaged according to a first embodiment of the present invention, as shown in fig. 3, the backlight module for preventing a flexible circuit board from being damaged further includes a lower iron frame 16, the lower iron frame 16 includes a bottom plate 161 and a side frame 162 fixedly connected to the bottom plate 161, the flexible circuit board 11 is fixed on the side frame 162, and the light guide plate 14 is disposed on the bottom plate 161. In this embodiment, the flexible circuit board 11 is disposed along the long axis direction of the side frame 162, the flexible circuit board 11 is attached to the side frame 162 through the heat conducting glue, and the heat dissipated by the flexible circuit board 11 is dissipated through the heat conducting glue.
Further, prevent that damaged backlight module of flexible circuit board still includes center 17, center 17 sets up around the circumference of chase 16 down, and center 17 and side frame 162 are connected through fixture block and the cooperation realization of card hole between the frame.
Furthermore, the backlight module for preventing the flexible circuit board from being damaged further includes a reflective film 18 and an optical film 19, the reflective film 18 is disposed on the bottom plate 161, the light guide plate 14 is disposed on the reflective film 18, and the optical film 19 is disposed on the light guide plate 14. In this embodiment, the reflective film 18 is adhered to the bottom plate 161 by a tape, the optical film 19 includes a diffusion film 191, a brightness enhancement film 192 and a brightness enhancement film 193, the diffusion film 191 is fixedly adhered to the light guide plate 14 by a tape, the brightness enhancement film 192 is fixedly adhered to the diffusion film 191 by a tape, and the brightness enhancement film 193 is fixedly adhered to the brightness enhancement film 192 by a tape, which is, for example, a double-sided tape, but not limited thereto.
In another preferred embodiment, the light guide plate 14 and the optical film 19 may also be fixed by a mounting block and a mounting groove, and then adhered to the light guide plate 14 and the optical film 19 by an adhesive tape to increase the effect of fixing connection.
Second embodiment
Fig. 4 is a schematic top view of a light guide plate and a flexible printed circuit board according to a second embodiment of the present invention, and as shown in fig. 4, the backlight module for preventing a flexible printed circuit board from being damaged according to the present embodiment has substantially the same structure as the backlight module for preventing a flexible printed circuit board from being damaged according to the first embodiment, and the difference is that the first spacer film 12 and the second spacer film 13 are located at different positions.
Specifically, the first spacer film 12 and the second spacer film 13 are disposed at an interval from each other along the length direction of the flexible circuit board 11, and the first spacer film 12 is located between any two adjacent light sources 15, and the second spacer film 13 is located between any two adjacent light sources 15. In the present embodiment, the first bump 141 and the second bump 142 of the light guide plate 14 are disposed at an interval, the first bump 141 and the second bump 142 divide the light incident side into the first region 102, the second region 103 and the third region 104, the first spacer film 12 and the second spacer film 13 divide the flexible printed circuit board 11 into the first region 111, the second region 112 and the third region 113, the first region 111 is electrically connected with the plurality of light sources 15, the second region 112 is electrically connected with the plurality of light sources 15, the third region 113 is electrically connected with the plurality of light sources 15, the light sources 15 of the first region 111 correspond to the first region 102, the light sources 15 of the second region 112 correspond to the second region 103, the light sources 15 of the third region 113 correspond to the third region 104, the first bump 141 abuts against the first spacer film 12, the second bump 142 abuts against the second spacer film 13, and the first spacer film 12 and the second spacer film 13 are used for preventing the flexible printed circuit board 11 from colliding with the light guide plate 14 to damage the flexible printed circuit board 11 The circuit board 11 thus causes a black screen phenomenon in the backlight module.
The utility model discloses still relate to an on-vehicle display device, including foretell the damaged backlight module of flexible circuit board that prevents. In this embodiment, the backlight module for preventing the flexible circuit board from being damaged is mainly applied to a vehicle-mounted automobile data recorder, a vehicle-mounted DVD navigation, a P-DVD, a GPS navigator, a vehicle-mounted industrial control and navigator, industrial control medical equipment, a digital photo frame, or the like; the on-vehicle display device is, for example, an instrument display screen, a head-up display screen, a center control display screen, a rear seat entertainment display screen, or the like, but 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. The utility model provides a prevent damaged backlight module of flexible circuit board, its characterized in that, includes flexible circuit board (11) and light guide plate (14), flexible circuit board (11) set up in the income light side of light guide plate (14), be fixed with first compartment membrane (12), second interval membrane (13) and a plurality of light source (15) on flexible circuit board (11), each light source (15) with the income light side of light guide plate (14) sets up relatively, the income light side of light guide plate (14) is fixed with first lug (141) and second lug (142), first lug (141) support lean on in first compartment membrane (12), second lug (142) support lean on in second interval membrane (13).
2. The backlight module for preventing the flexible circuit board from being damaged according to claim 1, wherein an avoidance region (101) for avoiding each light source (15) is formed between the first bump (141) and the second bump (142), each light source (15) is disposed corresponding to the avoidance region (101), and each light source (15) is located between the first spacer film (12) and the second spacer film (13).
3. The backlight module for preventing the breakage of the flexible circuit board according to claim 1, wherein the first spacer film (12) and the second spacer film (13) are disposed at an interval from each other along a length direction of the flexible circuit board (11), and the first spacer film (12) is disposed between any two adjacent light sources (15), and the second spacer film (13) is disposed between any two adjacent light sources (15).
4. The backlight module for preventing the breakage of the flexible circuit board according to claim 1, wherein the light guide plate (14) has a rectangular shape, the first protrusion (141) is disposed near one corner of the light guide plate (14), and the second protrusion (142) is disposed near the other corner of the light guide plate (14).
5. The backlight module for preventing breakage of a flexible circuit board according to claim 1, wherein an area of the first spacer film (12) is greater than or equal to an area of the first bump (141) in contact with the first spacer film (12), and an area of the second spacer film (13) is greater than or equal to an area of the second bump (142) in contact with the second spacer film (13).
6. The backlight module for preventing the breakage of the flexible circuit board according to claim 1, wherein the thickness of the first spacer film (12) is 0.03mm to 0.2 mm; the thickness of the second diaphragm (13) is 0.03 mm-0.2 mm.
7. The backlight module for preventing the flexible circuit board from being damaged as claimed in claim 1, further comprising a lower bezel (16), wherein the lower bezel (16) comprises a bottom plate (161) and a side frame (162) fixedly connected to the bottom plate (161), the flexible circuit board (11) is fixed on the side frame (162), and the light guide plate (14) is disposed on the bottom plate (161).
8. The backlight module for preventing the flexible circuit board from being damaged as claimed in claim 7, wherein the backlight module for preventing the flexible circuit board from being damaged further comprises a middle frame (17), the middle frame (17) is disposed around a circumference of the lower iron frame (16), and the middle frame (17) and the side frames (162) are connected by a fitting between a fitting block and a fitting hole.
9. The backlight module for preventing the breakage of the flexible printed circuit board according to claim 8, further comprising a reflective film (18) and an optical film (19), wherein the reflective film (18) is disposed on the bottom plate (161), the light guide plate (14) is disposed on the reflective film (18), and the optical film (19) is disposed on the light guide plate (14).
10. An in-vehicle display device, comprising the backlight module for preventing the flexible circuit board from being damaged according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121078814.9U CN215265337U (en) | 2021-05-19 | 2021-05-19 | Backlight module for preventing flexible circuit board from being damaged and vehicle-mounted display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121078814.9U CN215265337U (en) | 2021-05-19 | 2021-05-19 | Backlight module for preventing flexible circuit board from being damaged and vehicle-mounted display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215265337U true CN215265337U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121078814.9U Active CN215265337U (en) | 2021-05-19 | 2021-05-19 | Backlight module for preventing flexible circuit board from being damaged and vehicle-mounted display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215265337U (en) |
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2021
- 2021-05-19 CN CN202121078814.9U patent/CN215265337U/en active Active
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