CN218550263U - Tear-proof flexible circuit board, backlight module and display device - Google Patents
Tear-proof flexible circuit board, backlight module and display device Download PDFInfo
- Publication number
- CN218550263U CN218550263U CN202222186519.6U CN202222186519U CN218550263U CN 218550263 U CN218550263 U CN 218550263U CN 202222186519 U CN202222186519 U CN 202222186519U CN 218550263 U CN218550263 U CN 218550263U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- notch
- backlight module
- breach
- board body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The utility model provides a prevent tearing circuit board, including the circuit board body, the circuit board body is including relative first side and the second side that sets up, and first side is equipped with first breach, and the second side is equipped with the second breach, and the circuit board body is equipped with the bend line, and the bend line extends to the second breach from first breach to fall into light source section and extension with the circuit board body. The utility model discloses a prevent that torn circuit board can prevent that the circuit of circuit board from being torn and leading the light source section not bright or contact failure, improving the product quality. The utility model discloses still relate to a backlight unit and display device.
Description
Technical Field
The utility model relates to a display screen technical field especially relates to a prevent tearing flexible circuit board, backlight unit and display device.
Background
Fig. 1 is a schematic structural diagram of a circuit board 21 in the prior art, fig. 2 is an enlarged structural diagram of a position a in fig. 1, as shown in fig. 1 and fig. 2, the circuit board 21 is generally disposed on an inner wall of a lower bezel of a backlight module, and an LED lamp 22 is electrically connected to the circuit board 21 for providing a light source for the backlight module, the conventional circuit board 21 is a straight strip type, the circuit board 21 is divided into a first section 211 and a second section 212 by bending, a right angle is formed between the first section 211 and the second section 212, the first section 211 is electrically connected to a plurality of LED lamps 22, because the circuit board 21 is a straight strip type, the bent position of the circuit board 21 has no anti-tear design, when the first section 211 and the second section 212 are bent along the bent position, in a process of assembling the backlight module, pulling the circuit board 21 may cause the bent line at the bent position to tear or break, thereby causing poor LED display effect and affecting product quality.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a prevent tearing circuit board, this circuit board can solve prior art's problem, prevents that the circuit of circuit board from being torn and leading the light source section not bright or contact failure, improves the product quality.
The utility model provides a prevent tearing circuit board, including the circuit board body, the circuit board body is including relative first side and the second side that sets up, and first side is equipped with first breach, and the second side is equipped with the second breach, and circuit board body bending type has the bend line, and the bend line extends to the second breach from first breach to fall into light source section and extension with the circuit board body.
In one embodiment, the first notch is formed by the first side edge being concave towards the direction close to the second side edge, the bottom edge of the first notch is curved in an arc shape, the second notch is formed by the second side edge being concave towards the direction close to the first side edge, and the bottom edge of the second notch is curved in an arc shape.
In one embodiment, the first notch and the second notch are correspondingly arranged; or the first notch and the second notch are arranged in a staggered way.
In one embodiment, the bottom edge of the first notch is made of copper and the bottom edge of the second notch is made of copper.
In an embodiment, the circuit board body is further provided with a first reinforcing film and a second reinforcing film, the first reinforcing film covers the bottom edge of the first notch, and the second reinforcing film covers the bottom edge of the second notch.
The utility model discloses still relate to a backlight unit, including lower frame and foretell prevent tearing circuit board, the lower frame be equipped with the holding chamber and with the through-hole of holding chamber intercommunication, the holding intracavity is located to the light source section, the extension section passes the through-hole and locates outside the holding chamber.
In one embodiment, the lower frame comprises a bottom plate and a side frame fixedly connected with the bottom plate, the side frame is arranged around the circumference of the bottom plate and forms an accommodating cavity, and the light source section is fixedly connected to the inner wall of the side frame.
In an embodiment, the backlight module includes a reflective film, a light guide plate and an optical film, the reflective film is located in the accommodating cavity and disposed on the bottom plate, the light guide plate is disposed on the reflective film, and the optical film is disposed on the light guide plate.
In one embodiment, the backlight module includes a middle frame, the middle frame is provided with a connecting plate, the side frames of the lower frame are provided with connecting grooves, and the connecting plate is disposed in the connecting grooves to fixedly connect the middle frame and the lower frame.
The utility model discloses still relate to a display device, including foretell backlight unit.
The utility model discloses a circuit board sets up first breach at first side, and the second side sets up the second breach, after buckling line is buckled through first breach and second breach, when dragging the circuit board, first breach and second breach have disperseed and have dragged the power to improve the tensile of circuit board department of buckling and drag the power, avoid the circuit of circuit board department of buckling to be torn or tear, improved the reliability of the circuit board of the department of buckling.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a circuit board in the prior art.
Fig. 2 is an enlarged schematic view of a structure in fig. 1.
Fig. 3 is a schematic structural diagram of the circuit board according to the first embodiment of the present invention when it is unfolded.
Fig. 4 is an enlarged schematic view of B in fig. 3.
Fig. 5 is an enlarged schematic view of a structure at B in another embodiment.
Fig. 6 is a schematic structural view of the circuit board according to the first embodiment of the present invention after being folded.
Fig. 7 is an enlarged schematic view of the structure at C in fig. 6.
Fig. 8 is a schematic view of a split structure of the backlight module of the present invention.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the description of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms can be understood in a specific case to those of ordinary skill in the art.
The terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", and the like, refer to an orientation or positional relationship based on that shown in the drawings, or that is conventionally placed during use of the invention, for convenience of description and simplicity of illustration, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
The terms "first," "second," "third," and the like are used solely to distinguish between similar elements and not to indicate or imply relative importance or a particular order.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.
First embodiment
As shown in fig. 3, fig. 4, fig. 6 and fig. 7, the tear-proof circuit board includes a circuit board body 11, the circuit board body 11 includes a first side 11a and a second side 11b that are oppositely disposed, the first side 11a and the second side 11b are disposed in a length direction of the circuit board body 11, the first side 11a is provided with a first notch 101, the second side 11b is provided with a second notch 102, the circuit board body 11 is bent to form a bending line 113, the bending line 113 extends from the first notch 101 to the second notch 102, and divides the circuit board body 11 into a light source section 111 and an extension section 112, the light source section 111 is electrically connected to a plurality of LED lamps 114 for providing a light source.
The utility model discloses a circuit board sets up first breach 101 at first side 11a, second side 11b sets up second breach 102, and the line of buckling 113 makes the circuit board body buckle through first breach 101 and second breach 102, when dragging the circuit board body, first breach 101 and second breach 102 have dispersed and have dragged the power to improve the tensile resistance of circuit board body 11 department of buckling, avoid the circuit of circuit board body 11 department of buckling to be torn or tear, improved the reliability of the circuit board of the department of buckling.
As shown in fig. 3 and 4, the first notch 101 is formed by the first side edge 11a being recessed toward the direction close to the second side edge 11b, the bottom edge of the first notch 101 is curved in an arc shape, the second notch 102 is formed by the second side edge 11b being recessed toward the direction close to the first side edge 11a, the bottom edge of the second notch 102 is curved in an arc shape, and the curved bottom edge can maximally disperse a pulling force generated when the circuit board body 11 is pulled, thereby improving the tensile force at the first notch 101 and the second notch 102.
In another preferred embodiment, the bottom edge of the first notch 101 and the bottom edge of the second notch 102 can also be "U" shaped, which can also distribute the pulling force.
As shown in fig. 4, the first notch 101 and the second notch 102 are staggered, that is, an angle is formed between a connecting line between the first notch 101 and the second notch 102 and the first side 11a or the second side 11b, when the angle is 45 ° and the bending line 113 is overlapped with the connecting line, the bent circuit board body 11 is "L" shaped, and the extension segment 112 is perpendicular to the light source segment 111.
As shown in fig. 5, in another preferred embodiment, the first notch 101 and the second notch 102 are disposed correspondingly, i.e. a connecting line between the first notch 101 and the second notch 102 is perpendicular to the first side 11a or the second side 11b.
Further, the bottom side of the first notch 101 is made of copper 115, and the bottom side of the second notch 102 is made of copper 115; the circuit in the circuit board body 11 is formed by etching copper 115, and the bottom edge of the first notch 101 and the bottom edge of the second notch 102 also belong to a part of the copper 115 in the circuit board body 11, but the copper 115 at the bottom edge of the first notch 101 is not etched and does not form a circuit, and is common copper 115, the copper 115 at the bottom edge of the first notch 101 is arc-shaped or U-shaped, and the copper 115 at the bottom edge of the second notch 102 is arc-shaped or U-shaped, and in short, the shape of the bottom edge of the first notch 101 and the shape of the bottom edge of the second notch 102 are the shape of the copper 115 at the bottom edge respectively, and the copper 115 can increase the tensile strength of the bending part of the circuit board body 11, thereby protecting the circuit board body 11 at the bending part from being torn, and improving the reliability of the circuit board.
Second embodiment
The flexible circuit board for preventing tearing of the present embodiment is substantially the same in structure as the flexible circuit board for preventing tearing of the first embodiment, except that the present embodiment is provided with a first reinforcing film and a second reinforcing film.
Specifically, the circuit board body 11 is further provided with a first reinforcing film and a second reinforcing film, the first reinforcing film covers a bottom edge of the first notch 101, and the second reinforcing film covers a bottom edge of the second notch 102. First reinforced film and second reinforced film pass through glue and paste on circuit board body 11, when dragging circuit board body 11 and assemble, drag the power and can act on first reinforced film and second reinforced film earlier, give circuit board body 11 cushioning effect, reduce the cracked risk of circuit among the circuit board body 11, improve the reliability of circuit board.
As shown in fig. 8, the utility model discloses still relate to a backlight unit, including lower frame 12 and the above-mentioned circuit board that prevents tearing, lower frame 12 is equipped with the holding chamber and with the through-hole of holding chamber intercommunication, the holding intracavity is located to light source section 111, and extension 112 passes the through-hole and locates outside the holding chamber, extension 112 and other device's module mainboard electric connection.
Further, the lower frame 12 includes a bottom plate 121 and a side frame 122 fixedly connected to the bottom plate 121, the side frame 122 is circumferentially disposed around the bottom plate 121 and forms an accommodating cavity, and the light source section 111 is fixedly connected to an inner wall of the side frame 122 through a heat-conducting double-sided adhesive tape 17.
Further, the backlight module includes a reflective film 13, a light guide plate 14 and an optical film 15, the reflective film 13 is located in the accommodating cavity and disposed on the bottom plate 121, the light guide plate 14 is disposed on the reflective film 13, and the optical film 15 is disposed on the light guide plate 14. In this embodiment, the reflective film 13 is fixedly connected to the bottom plate 121 through a double-sided adhesive tape, the light guide film is fixedly connected to the bottom plate 121, and the optical film 15 is fixedly connected to the bottom plate 121; the fixing connection manner is, for example, a fixing manner by a double-sided tape or a fixing manner by a fitting manner of a fixture block and a fixture groove, but not limited thereto.
Further, the optical film 15 includes a diffuser film 151, a lower brightness enhancement film 152, an upper brightness enhancement film 153 and a brightness enhancement film 154, the diffuser film 151 is fixedly connected to the light guide plate 14, the lower brightness enhancement film 152 is fixedly connected to the diffuser film 151, the upper brightness enhancement film 153 is fixedly connected to the lower brightness enhancement film 152, and the brightness enhancement film 154 is fixedly connected to the upper brightness enhancement film 153; the fixing connection is, for example, a double-sided tape fixing or a fixture block and a slot matching, but not limited thereto.
Further, the backlight module comprises a middle frame 16, wherein the middle frame 16 is provided with a connecting plate, the side frame 122 of the lower frame 12 is provided with a connecting groove, and the connecting plate is arranged in the connecting groove to fixedly connect the middle frame 16 with the lower frame 12. In this embodiment, the backlight module further includes a foam adhesive, the foam adhesive is fixedly connected to a side surface of the middle frame 16 far away from the optical film 15, and the foam adhesive is used for buffering and fixing the display screen.
The utility model discloses still relate to a display device, including foretell backlight unit. In the present embodiment, the display device is, for example, a high-end vehicle instrument, a vehicle center display, a vehicle drive recorder, a vehicle DVD navigation, a vehicle console integrated display screen, a vehicle-mounted streaming mirror, a vehicle seat headrest display, or the like, but is not limited thereto.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a prevent circuit board of tearing, its characterized in that includes circuit board body (11), circuit board body (11) are including relative first side (11 a) and the second side (11 b) that sets up, first side (11 a) are equipped with first breach (101), second side (11 b) are equipped with second breach (102), circuit board body (11) bending type is formed with bend line (113), bend line (113) extend to second breach (102) from first breach (101), and will circuit board body (11) fall into light source section (111) and extension section (112).
2. The tear-preventing circuit board according to claim 1, wherein the first notch (101) is formed by the first side edge (11 a) being recessed toward the second side edge (11 b), a bottom side of the first notch (101) is curved in an arc shape, the second notch (102) is formed by the second side edge (11 b) being recessed toward the first side edge (11 a), and a bottom side of the second notch (102) is curved in an arc shape.
3. The tear-preventing circuit board according to claim 2, wherein the first notch (101) is provided corresponding to the second notch (102); or the first notch (101) and the second notch (102) are arranged in a staggered manner.
4. The tear-resistant circuit board of claim 2, wherein the bottom edge of the first notch (101) is made of copper (115) and the bottom edge of the second notch (102) is made of copper (115).
5. The tear-preventing circuit board according to claim 1, wherein the circuit board body (11) is further provided with a first reinforcing film and a second reinforcing film, the first reinforcing film is disposed to cover a bottom edge of the first notch (101), and the second reinforcing film is disposed to cover a bottom edge of the second notch (102).
6. A backlight module, characterized by comprising a lower frame (12) and the anti-tearing circuit board of any one of claims 1 to 5, wherein the lower frame (12) is provided with an accommodating cavity and a through hole communicated with the accommodating cavity, the light source section (111) is arranged in the accommodating cavity, and the extension section (112) passes through the through hole and is arranged outside the accommodating cavity.
7. The backlight module according to claim 6, wherein the bottom frame (12) comprises a bottom plate (121) and a side frame (122) fixedly connected to the bottom plate (121), the side frame (122) is circumferentially disposed around the bottom plate (121) and forms the receiving cavity, and the light source section (111) is fixedly connected to an inner wall of the side frame (122).
8. The backlight module according to claim 7, wherein the backlight module comprises a reflective film (13), a light guide plate (14) and an optical film (15), the reflective film (13) is located in the receiving cavity and disposed on the bottom plate (121), the light guide plate (14) is disposed on the reflective film (13), and the optical film (15) is disposed on the light guide plate (14).
9. A backlight module according to claim 8, characterized in that the backlight module comprises a middle frame (16), the middle frame (16) is provided with a connecting plate, the side frames (122) of the lower frame (12) are provided with connecting slots, and the connecting plate is arranged in the connecting slots to fixedly connect the middle frame (16) and the lower frame (12).
10. A display device comprising the backlight module of any one of claims 6 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222186519.6U CN218550263U (en) | 2022-08-18 | 2022-08-18 | Tear-proof flexible circuit board, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222186519.6U CN218550263U (en) | 2022-08-18 | 2022-08-18 | Tear-proof flexible circuit board, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218550263U true CN218550263U (en) | 2023-02-28 |
Family
ID=85269904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222186519.6U Active CN218550263U (en) | 2022-08-18 | 2022-08-18 | Tear-proof flexible circuit board, backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218550263U (en) |
-
2022
- 2022-08-18 CN CN202222186519.6U patent/CN218550263U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6490016B1 (en) | Flat-panel display device having a backlight and an electromagnetic shield casing | |
| EP2045653A1 (en) | Liquid crystal module | |
| EP1637921A1 (en) | Liquid crystal display device and a mobile information terminal including a liquid crystal display device | |
| EP2506070B1 (en) | Liquid crystal display device | |
| JP3562793B2 (en) | Display device | |
| CN210149233U (en) | Rearview mirror device, vehicle-mounted display device and vehicle-mounted display system | |
| CN218550263U (en) | Tear-proof flexible circuit board, backlight module and display device | |
| CN115242901A (en) | Electronic device | |
| US7046317B2 (en) | Liquid crystal display apparatus | |
| JP4019381B2 (en) | Liquid crystal television and liquid crystal display device | |
| EP3541065B1 (en) | Display device | |
| CN220235178U (en) | Display device | |
| CN212658918U (en) | Backlight FPC assembly, backlight module and liquid crystal display | |
| CN113844366B (en) | High-reliability bracket mounting structure and rearview mirror | |
| CN111413761A (en) | Backlight module and display device | |
| CN112141016A (en) | Switch mounting structure | |
| JP2004258678A (en) | Display device | |
| JP2005119562A (en) | Electric connection structure for attached unit for vehicle and electric connection structure for rearview mirror | |
| JP2008089660A (en) | Liquid crystal display apparatus | |
| CN210720949U (en) | Liquid crystal display device and direct type backlight module and back plate thereof | |
| JP3101993B2 (en) | Liquid crystal display | |
| CN215971319U (en) | Combined structure of mirror arm and mounting seat of automobile interior rearview mirror | |
| CN211281308U (en) | Vehicle-mounted display for electric vehicle | |
| CN214375695U (en) | Backlight module for preventing flexible circuit board from being cut and vehicle-mounted display device | |
| CN213339451U (en) | Vehicle-mounted backlight module for preventing cutting damage of flexible circuit board and vehicle-mounted display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |