CN217214058U - Backlight module for improving reliability of flexible circuit board and display device - Google Patents
Backlight module for improving reliability of flexible circuit board and display device Download PDFInfo
- Publication number
- CN217214058U CN217214058U CN202221043843.6U CN202221043843U CN217214058U CN 217214058 U CN217214058 U CN 217214058U CN 202221043843 U CN202221043843 U CN 202221043843U CN 217214058 U CN217214058 U CN 217214058U
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- Prior art keywords
- circuit board
- flexible circuit
- side plate
- reliability
- backlight module
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 24
- 230000000903 blocking effect Effects 0.000 claims description 16
- 239000010408 film Substances 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 239000012788 optical film Substances 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000002390 adhesive tape Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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Abstract
The utility model provides an increase backlight unit of flexible circuit board reliability, including lower chase, flexible circuit board and a plurality of LED lamp, lower chase include the side frame and with side frame fixed connection's bottom plate, the side frame is equipped with the via hole with the junction of bottom plate, flexible circuit board includes first linkage segment and second linkage segment, a plurality of LED lamp electric connection are in first linkage segment, and set up along the length direction interval of first linkage segment, first linkage segment fixed connection is in the side frame, the second linkage segment runs through the hole setting, first linkage segment includes first end and second end, the side frame is equipped with and supports the portion of leaning on, first end with support the portion interval or support and lean on the setting, second end and first linkage segment fixed connection. The utility model discloses an increase backlight unit of flexible circuit board reliability can solve flexible circuit board reliability problem, avoids the short circuit phenomenon to appear in the flexible circuit board. The utility model discloses still relate to a display device.
Description
Technical Field
The utility model relates to a display screen technical field, in particular to increase backlight unit and display device of flexible circuit board reliability.
Background
Fig. 1 is a schematic view of a conventional light bar and a lower iron frame matched local overlooking structure, as shown in fig. 1, the backlight module comprises a lower iron frame 21 and a light bar 23, the lower iron frame 21 comprises a side frame 211 and a bottom plate 212, the side frame 211 is fixedly connected to the bottom plate 212, the side frame 211 comprises a first side plate and a second side plate which are perpendicular to each other, the light bar 23 is fixedly connected to the inner wall of the first side plate, because the accommodating cavity of the lower iron frame 21 is formed by a flanging process, a through hole 201 exists at the joint of the first side plate and the second side plate, and the through hole 201 is arranged along the length direction of the first side plate, so that the end part of the light bar 23 easily passes through the through hole 201 and contacts with the side wall of the second side plate, thereby causing a short circuit phenomenon.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an increase backlight unit of flexible circuit board reliability, this backlight unit can solve flexible circuit board reliability problem, avoids the flexible circuit board short circuit phenomenon to appear.
The utility model provides an increase backlight unit of flexible circuit board reliability, including lower chase, flexible circuit board and a plurality of LED lamp, lower chase includes the side frame and with side frame fixed connection's bottom plate, the junction of side frame and bottom plate is equipped with the via hole, flexible circuit board includes first linkage segment and second linkage segment, a plurality of LED lamp electric connection are in first linkage segment, and set up along the length direction interval of first linkage segment, first linkage segment fixed connection is in the side frame, the second linkage segment runs through the hole setting, first linkage segment includes first end and second tip, the side frame is equipped with and supports the portion of leaning on, first end with support to support the portion interval or support and lean on the setting, second end and second linkage segment fixed connection.
The utility model discloses in, above-mentioned side frame includes first curb plate, second curb plate, third curb plate and fourth curb plate, and first curb plate sets up with the second curb plate relatively, and the third curb plate sets up with the fourth curb plate relatively, and first curb plate, second curb plate are connected in third curb plate, fourth curb plate, and first linkage segment fixed connection is in first curb plate, supports to lean on a fixed connection to be close to the tip of first curb plate in the third curb plate.
The utility model discloses in, above-mentioned side frame still is equipped with the stop part, stop part and first curb plate parallel arrangement, stop part and support to form spacing district by a fixed connection, and first end locates in the spacing district.
The utility model discloses in, above-mentioned first linkage segment still includes the third tip, and third tip and first end fixed connection form a contained angle, and the third tip supports with supporting the portion and leans on or the interval sets up.
The utility model discloses in, above-mentioned first end is located the length of first curb plate width direction and is less than the length that third end position is located first curb plate width direction.
The utility model discloses in, above-mentioned first linkage segment still includes the fixed block, and fixed block fixed connection is in the junction of first end and third end, and the fixed block is used for keeping the shape between first end and the third end.
The utility model discloses in, above-mentioned fixed block is made by insulating material.
The utility model discloses in, above-mentioned backlight unit who increases flexible circuit board reliability still includes the center, and the center is equipped with the mounting groove, and the side frame be equipped with mounting groove complex installation piece, installation piece locate mounting groove internal fixation connection center and lower chase.
The utility model discloses in, above-mentioned backlight unit who increases flexible circuit board reliability still includes reflectance coating, light guide plate 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.
The utility model discloses still relate to a display device, including the backlight unit of foretell increase flexible circuit board reliability.
The utility model discloses an increase backlight unit of flexible circuit board reliability sets up at the first end of flexible circuit board and supports to lean on the portion, supports to lean on the portion to be used for carrying on spacingly to the first end, thereby avoids the first linkage segment of flexible circuit board to be located the short circuit risk that the iron frame caused outward down, improves flexible circuit board's reliability.
Drawings
Fig. 1 is a schematic partial top view of a conventional light bar and a lower bezel.
Fig. 2 is a schematic view of a partial structure of a backlight module for increasing the reliability of a flexible circuit board according to a first embodiment of the present invention.
Fig. 3 is an enlarged schematic view of a structure at a in fig. 2.
Fig. 4 is a schematic diagram of a partially enlarged structure of a flexible circuit board and a lower bezel according to a second embodiment of the present invention.
Fig. 5 is a schematic diagram of a third embodiment of the present invention showing a partially enlarged structure of a flexible circuit board and a lower bezel.
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. 2 is a partial structural schematic view of a backlight module for increasing the reliability of a flexible circuit board according to a first embodiment of the present invention, fig. 3 is an enlarged structural schematic view of a position a in fig. 2, as shown in fig. 2 and 3, the backlight module for increasing the reliability of a flexible circuit board includes a lower bezel 11, a flexible circuit board 12 and a plurality of LED lamps 13, the lower bezel 11 includes a side frame 111 and a bottom plate 112 fixedly connected to the side frame 111, a via hole is formed at a connection position of the side frame 111 and the bottom plate 112, the flexible circuit board 12 includes a first connection section and a second connection section, the plurality of LED lamps 13 are electrically connected to the first connection section and are arranged at intervals along a length direction of the first connection section, the first connection section is fixedly connected to the side frame 111, the second connection section penetrates through the hole, the first connection section includes a first end portion 121a and a second end portion, the side frame 111 is provided with an abutting portion 113, the first end portion 121a is arranged at an interval or abutting against the abutting portion 113, the second end part is fixedly connected with the second connecting section. In the present embodiment, the flexible circuit board 12 is fixedly connected to the inner wall of the side frame 111 by the double-sided thermal adhesive tape 14; the side frame 111 and the bottom plate 112 are of an integral structure.
The utility model discloses an increase backlight unit of flexible circuit board reliability sets up at the first end 121a of flexible circuit board 12 and supports to portion 113, supports to portion 113 is used for spacing first end 121a, thereby avoids the first linkage segment of flexible circuit board 12 to be located the short circuit risk that iron frame 11 caused outward down, improves flexible circuit board 12's reliability.
Further, the side frame 111 includes a first side plate 111a, a second side plate, a third side plate 111b and a fourth side plate, the first side plate 111a is disposed opposite to the second side plate, the third side plate 111b is disposed opposite to the fourth side plate, the first side plate 111a and the second side plate are connected to the third side plate 111b and the fourth side plate, the first connecting section is fixedly connected to the first side plate 111a, and the abutting portion 113 is fixedly connected to an end portion of the third side plate 111b close to the first side plate 111 a. In this embodiment, the abutting portion 113 is rectangular, the abutting portion 113 and the third side plate 111b are connected in an integrated structure or by welding, a through hole 101 is formed between the abutting portion 113 and the first side plate 111a, and the through hole 101 is disposed along the length direction of the third side plate 111b, so that when the flexible circuit board 12 is assembled, the first end portion 121a abuts against the abutting portion 113, or the first end portion 121a and the abutting portion 113 are disposed at an interval, thereby avoiding a short circuit phenomenon caused by the contact of the first end portion 121a penetrating through the through hole 101 and the side wall of the third side plate 111 b.
Further, the backlight module for increasing the reliability of the flexible circuit board further comprises a middle frame, the middle frame is provided with a mounting groove, the side frame 111 is provided with a mounting block matched with the mounting groove, and the mounting block is arranged in the mounting groove and fixedly connected with the middle frame and the lower iron frame 11.
Further, the backlight module for increasing the reliability of the flexible circuit board further comprises a reflective film, a light guide plate and an optical film, wherein the reflective film is arranged on the bottom plate 112, the light guide plate is arranged on the reflective film, and the optical film is arranged on the light guide plate. In this embodiment, the reflective film may be fixedly connected to the bottom plate 112 through a double-sided adhesive tape, the light guide plate may be fixedly connected to the reflective film through a double-sided adhesive tape, and the optical film may be fixedly connected to the light guide plate through a double-sided adhesive tape; or the light guide plate and the optical film can be fixedly connected through the matching of the convex block and the groove; or after the light guide plate and the optical film are matched with each other through the bumps and the grooves, the light guide plate and the optical film are reinforced and connected through the double-sided adhesive tape, and it should be noted that the fixing mode between the light guide plate and the optical film is not limited here.
Further, the optical film comprises a diffusion film, a brightness enhancement film and a brightness enhancement film, wherein the diffusion film is fixedly connected to the light guide plate, the brightness enhancement film is fixedly connected to the diffusion film, and the brightness enhancement film is fixedly connected to the brightness enhancement film.
Further, increase backlight unit of flexible circuit board reliability still includes the bubble celloidin, and the bubble celloidin is fixed on the center, and the bubble celloidin is used for buffering fixed display screen.
Second embodiment
Fig. 4 is a schematic diagram of a flexible circuit board and a lower iron frame of the present invention, which is a partially enlarged structure, and as shown in fig. 4, the backlight module for increasing the reliability of the flexible circuit board of the present embodiment is substantially the same as the backlight module for increasing the reliability of the flexible circuit board of the first embodiment in structure, and the difference lies in that the structure of the abutting portion 113 is different.
Specifically, the side frame 111 is further provided with a blocking portion 114, the blocking portion 114 is parallel to the first side plate 111a, the blocking portion 114 is fixedly connected with the abutting portion 113 to form a limiting region, and the first end portion 121a is disposed in the limiting region. In this embodiment, an included angle is formed between one end of the blocking portion 114 and one end of the abutting portion 113, an area formed by connecting the other end of the blocking portion 114 and the other end of the abutting portion 113 is a limiting area, and the first end portion 121a is disposed in the limiting area to avoid a short circuit phenomenon.
Further, the abutting portion 113, the blocking portion 114 and the third side plate 111b are of an integral structure; or the abutting part 113 and the third side plate 111b are of an integral structure, the blocking part 114 is fixed to the abutting part 113 in a welding manner, and at this time, the blocking part 114 is made of a hard material; or the abutting part 113 and the third side plate 111b are of an integral structure, the blocking part 114 is fixed to the abutting part 113 by glue or tape adhesion, and at this time, the blocking part 114 is made of a flexible material; or the abutting part 113 and the blocking part 114 are both made of flexible materials and are fixed on the third side plate 111b in a glue or tape pasting mode; it should be noted that the connection manners or materials among the abutting portion 113, the blocking portion 114 and the first side plate 111a are not exhaustive, as long as the risk of short circuit caused by the contact of the first end portion 121a with the inner wall of the through hole 101 or the penetration of the through hole 101 can be avoided.
Further, the blocking portion 114 is fixedly connected to the first side plate 111a, and may be connected by means of tape-bonding or welding.
Third embodiment
Fig. 5 is a schematic diagram of a flexible circuit board and a lower iron frame of the present invention, which is a partially enlarged structure, and as shown in fig. 5, the backlight module for increasing the reliability of the flexible circuit board of the present embodiment is substantially the same as the backlight module for increasing the reliability of the flexible circuit board of the first embodiment in structure, and the difference lies in the difference of the structure of the flexible circuit board 12.
Specifically, the first connecting segment further includes a third end portion 121b, the third end portion 121b is fixedly connected to the first end portion 121a and forms an included angle, and the third end portion 121b abuts against or is spaced from the abutting portion 113. In the present embodiment, the third end portion 121b and the first end portion 121a are, for example, disposed perpendicularly.
Further, the length of the first end portion 121a in the width direction of the first side plate 111a is smaller than the length of the third end portion 121b in the width direction of the first side plate 111a, so that the short circuit phenomenon caused by the contact of the third end portion 121b penetrating through the through hole 101 and the side wall of the third side plate 111b can be avoided.
Further, the first connecting section further includes a fixing block 122, the fixing block 122 is fixedly connected to a connection portion of the first end portion 121a and the third end portion 121b, the fixing block 122 is used for maintaining a shape between the first end portion 121a and the third end portion 121b, and the fixing block 122 may be disposed on a side of an inner side of the first connecting section close to the LED lamp 13 or a side of an outer side of the first connecting section close to the first side plate 111a or the third side plate 111 b. In the present embodiment, the fixing block 122 is, for example, L-shaped or T-shaped; or the fixing block 122 is provided with a limiting groove, and the joint of the first end part 121a and the third end part 121b is positioned in the limiting groove; or the fixing block 122 is a tape having a thickness, it should be noted that the fixing block 122 is only required to be able to limit the shape between the first end 121a and the third end 121b, and the specific shape or structure of the fixing block 122 is not limited.
Further, the fixing block 122 may be made of an insulating material to prevent the flexible circuit board 12 from short-circuiting.
The utility model discloses still relate to a display device, including the backlight unit of foretell increase flexible circuit board reliability. In the present embodiment, the display device is, for example, an on-board display, a flat panel display, an industrial control display, 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 backlight module for improving the reliability of the flexible circuit board comprises a lower iron frame (11), a flexible circuit board (12) and a plurality of LED lamps (13), wherein the lower iron frame (11) comprises a side frame (111) and a bottom plate (112) fixedly connected with the side frame (111), via holes are formed in the connection position of the side frame (111) and the bottom plate (112), the flexible circuit board (12) comprises a first connection section and a second connection section, the LED lamps (13) are electrically connected to the first connection section and are arranged at intervals along the length direction of the first connection section, the first connection section is fixedly connected to the side frame (111), the second connection section penetrates through the via holes, the backlight module is characterized in that the first connection section comprises a first end portion (121a) and a second end portion, the side frame (111) is provided with a butting portion (113), and the first end portion (121a) and the butting portion (113) are arranged at intervals or in a butting manner, the second end portion is fixedly connected with the second connecting section.
2. The backlight module according to claim 1, wherein the side frame (111) comprises a first side plate (111a), a second side plate, a third side plate (111b) and a fourth side plate, the first side plate (111a) and the second side plate are disposed opposite to each other, the third side plate (111b) and the fourth side plate are disposed opposite to each other, the first side plate (111a) and the second side plate are connected to the third side plate (111b) and the fourth side plate, the first connecting section is fixedly connected to the first side plate (111a), and the abutting portion (113) is fixedly connected to an end of the third side plate (111b) close to the first side plate (111 a).
3. The backlight module for improving the reliability of the flexible circuit board according to claim 2, wherein the side frame (111) further comprises a blocking portion (114), the blocking portion (114) is disposed in parallel with the first side plate (111a), the blocking portion (114) is fixedly connected with the abutting portion (113) to form a limiting region, and the first end portion (121a) is disposed in the limiting region.
4. The backlight module for increasing the reliability of a flexible circuit board according to claim 2, wherein the first connecting section further comprises a third end portion (121b), the third end portion (121b) is fixedly connected with the first end portion (121a) and forms an included angle, and the third end portion (121b) abuts against or is spaced from the abutting portion (113).
5. The backlight module for increasing the reliability of the flexible circuit board according to claim 4, wherein the length of the first end (121a) in the width direction of the first side plate (111a) is smaller than the length of the third end (121b) in the width direction of the first side plate (111 a).
6. The backlight module for increasing the reliability of a flexible circuit board as claimed in claim 4, wherein the first connecting section further comprises a fixing block (122), the fixing block (122) is fixedly connected to a connection of the first end portion (121a) and the third end portion (121b), and the fixing block (122) is used for maintaining a shape between the first end portion (121a) and the third end portion (121 b).
7. The backlight module for increasing the reliability of a flexible circuit board as claimed in claim 6, wherein the fixing block (122) is made of an insulating material.
8. The backlight module for improving the reliability of the flexible circuit board as claimed in claim 1, wherein the backlight module for improving the reliability of the flexible circuit board further comprises a middle frame, the middle frame is provided with a mounting groove, the side frame (111) is provided with a mounting block matched with the mounting groove, and the mounting block is arranged in the mounting groove and fixedly connects the middle frame and the lower iron frame (11).
9. The backlight module for increasing the reliability of a flexible circuit board according to claim 8, wherein the backlight module for increasing the reliability of a flexible circuit board further comprises a reflective film, a light guide plate and an optical film, the reflective film is disposed on the bottom plate (112), the light guide plate is disposed on the reflective film, and the optical film is disposed on the light guide plate.
10. A display device comprising the backlight module for increasing the reliability of a flexible circuit board according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221043843.6U CN217214058U (en) | 2022-04-28 | 2022-04-28 | Backlight module for improving reliability of flexible circuit board and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221043843.6U CN217214058U (en) | 2022-04-28 | 2022-04-28 | Backlight module for improving reliability of flexible circuit board and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217214058U true CN217214058U (en) | 2022-08-16 |
Family
ID=82777864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221043843.6U Active CN217214058U (en) | 2022-04-28 | 2022-04-28 | Backlight module for improving reliability of flexible circuit board and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217214058U (en) |
-
2022
- 2022-04-28 CN CN202221043843.6U patent/CN217214058U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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Address after: 518000 floor 1, 2-4, and floor 1-3, No. 222-2, Buxin Road, Xinlan community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Handamei Electronics Co.,Ltd. Country or region after: China Address before: 518000 floor 1, 2-4, and floor 1-3, No. 222-2, Buxin Road, Xinlan community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN HADBEST ELECTRONICS CO.,LTD. Country or region before: China |