CN220342504U - Whole screen arrangement type LED display screen backlight FPC flexible circuit board - Google Patents
Whole screen arrangement type LED display screen backlight FPC flexible circuit board Download PDFInfo
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- CN220342504U CN220342504U CN202223139966.2U CN202223139966U CN220342504U CN 220342504 U CN220342504 U CN 220342504U CN 202223139966 U CN202223139966 U CN 202223139966U CN 220342504 U CN220342504 U CN 220342504U
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- Prior art keywords
- display screen
- light source
- circuit board
- flexible circuit
- fpc
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- 238000003466 welding Methods 0.000 claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 claims abstract description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000003490 calendering Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The utility model relates to a whole-screen arrangement type LED display screen backlight FPC flexible circuit board which comprises an FPC board surface, wherein the FPC board surface comprises a light source area and a control area positioned at the side edge of the light source area, the light source area is tiled below a display screen, the control area is folded below the light source area, a first welding point for welding mini LED lamps is arranged in a light source area row, and a second welding point for welding chips and components is arranged in the control area. During installation, the control area of the FPC board is folded, the display screen is directly connected with the main board, and other components can be connected through the circuit board. A plurality of dense heat dissipation holes are uniformly formed in the middle of the FPC board surface to form hollowed-out heat dissipation; when the LED lamp is used, whether the mini LED lamp emits light or not and whether the brightness is high or low are controlled through the chip, so that energy consumption is reduced; the low power consumption and the high-efficiency heat dissipation complement each other.
Description
Technical Field
The utility model relates to a whole-screen arrangement type LED display screen backlight FPC flexible circuit board, and belongs to the technical field of backlight modules.
Background
The backlight display screen is widely applied to electronic product displays such as mobile phones, flat plates and the like, and the working principle is that an LED light source is arranged on the side edge of the display screen, then light rays are uniformly distributed on the display screen through a light guide function structure of the backlight plate, and finally pattern display and change on the display screen are realized through a signal shielding function of the backlight plate. However, the existing backlight plate for display screen has the main defects of high energy consumption and high heat.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a whole-screen arrangement type LED display screen backlight FPC flexible circuit board, which is designed with a whole-screen FPC, wherein a large number of dense mini LED lamps are arranged in an area array corresponding to a display screen; the side edge of the circuit board is designed with various chips and components, the side edge is folded and rolled during installation, the display screen is directly connected with the main board, and other components can be connected through the circuit board. The specific technical scheme is as follows:
the utility model provides a whole screen arrangement formula LED display screen FPC flexible line way board that is shaded, includes the FPC face, the FPC face includes the light source district and is located the control district of light source district side, the light source district tiling in the below of display screen, the control district is folded in the below of light source district, the light source district array is provided with the welding point one of welding mini LED lamp, the control district is provided with welding point two of welding chip and components and parts.
Further, one of the control regions is located on either side of the light source region.
Further, the control area has a plurality of control areas, and the control areas are positioned on any side or multiple sides of the light source area.
Furthermore, a plurality of dense heat dissipation holes are formed in the light source area of the FPC board surface, so that hollowed-out heat dissipation is formed. The positions of the radiating holes can be designed according to actual needs, and the number of the radiating holes is increased in a high-heat area.
Furthermore, the round hole has simple process and low processing cost. Therefore, the heat dissipation holes are round holes, and the diameter of the heat dissipation holes is smaller than 1mm.
Furthermore, a certain distance should be kept between the FPC board and the display screen, and in general, the distance between the FPC board and the display screen is greater than 1mm.
Further, according to the process requirement, the FPC board face is provided with a positioning hole for welding.
Furthermore, the flexible circuit board substrate polyimide rolled copper foil is used for the FPC board, so that the FPC board is manufactured without punching, a complete FPC board is obtained, and a densely perforated FPC board is obtained through a large number of heat dissipation holes, so that the heat dissipation effect during use is guaranteed. The positions of the bonding pads are determined and protected through solder resist and printing, and gold is plated on the positions of the bonding pads and the golden fingers, so that the high sensitivity of connecting other components and modules of the circuit board is ensured. During installation, the control area of the FPC board is folded, the display screen is directly connected with the main board, and other components can be connected through the circuit board. When the LED lamp is used, whether the mini LED lamp emits light or not and whether the brightness is high or low are controlled through the chip of the control area, so that energy consumption is reduced.
The beneficial effects of the utility model are as follows:
the key of the utility model is the whole edition design of the product, the traditional FPC takes the advantages of softness and fineness according to the internal space of the electronic product, and the area and the length of the circuit board are as small as possible. The utility model is not only provided with the light source area which is tiled below the display screen, but also reserves the control area which is folded below the light source area, and the design ideas are completely different. Secondly, dense heat dissipation holes and LED bonding pad positions are arranged, so that the light emission of the regional light source and the hollowed-out heat dissipation are achieved, the low power consumption and the high-efficiency heat dissipation complement each other, and the LED backlight module is a brand new technical idea in the field of backlight modules.
Compared with the current mainstream technical thought, the light-emitting mode of the utility model has great change, and the light-emitting of the side lamp tube is changed into dense LED direct light-emitting. The traditional light-emitting mode is that a light-emitting source keeps emitting light, and finally, contents to be displayed are distributed on a display through a backlight module by different light sources. The dense LED backlight of the utility model emits light in regions according to the requirement of the final display panel, and the chip of the control area controls whether the mini LED lamp emits light or not and the brightness, so that the energy consumption is greatly reduced, the heat generated by the working of the light source is also greatly reduced, and the utility model is very important for the promotion of electronic products.
The utility model adopts full-page roll-up design, can concentrate a plurality of interconnected circuits including the display screen in one circuit board, compared with the traditional method that the modules are respectively connected by the circuit board or the circuit, the circuit structure is optimized, the internal design is simplified, and the space is saved.
Drawings
FIG. 1 is a schematic diagram of the front structure of the first embodiment;
fig. 2 is a schematic view of the back structure of the first embodiment;
FIG. 3 is a schematic diagram of the front structure of the second embodiment;
fig. 4 is a schematic view of the back structure of the second embodiment;
in the figure: 1-light source area, 2-control area, 3-welding point one, 4-welding point two, 5-heat dissipation hole, 6-locating hole.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
Including the FPC face, the FPC face includes light source district 1 and is located the control district 2 of 1 sides in light source district, and light source district 1 tiling is in the below of display screen, gets 1.5mm with the distance of display screen, and 1 array in light source district is provided with the welding point one 3 of the mini LED lamp of welding. The control area 2 is folded below the light source area 1, and the control area 2 is provided with a second welding point 4 for welding chips and components.
The light source area 1 of the FPC board is provided with a plurality of dense heat dissipation holes to form hollowed-out heat dissipation. The round hole has simple process and low processing cost. Therefore, the heat dissipation holes are round holes, and the diameter of the heat dissipation holes is 0.5mm. The positions of the radiating holes can be designed according to actual needs, and the number of the radiating holes is increased in a high-heat area.
According to the technological requirement, the FPC board is provided with a positioning hole for welding. The FPC board surface uses flexible circuit board substrate polyimide to roll copper foil to make FPC's mode, does not add towards, obtains a complete FPC board surface, obtains a densely perforated FPC board surface through a large amount of louvres, in order to guarantee the radiating effect when using. The positions of the bonding pads are determined and protected through solder resist and printing, and gold is plated on the positions of the bonding pads and the golden fingers, so that the high sensitivity of connecting other components and modules of the circuit board is ensured. During installation, the control area 2 of the FPC board is folded, the display screen is directly connected with the main board, and other components can be connected through the circuit board. When the LED lamp is used, whether the mini LED lamp emits light or not and whether the brightness is high or low are controlled through the chip of the control area 2, so that energy consumption is reduced.
Examples
As shown in fig. 1 and 2, there are two control areas 2 located on a set of opposite sides of the light source area 1.
Examples
As shown in fig. 3 and 4, the control areas 2 have three, two of which are located at one side of the light source area 1 and the remaining one is located at the adjacent side.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. A whole screen arrangement type LED display screen backlight FPC flexible circuit board is characterized in that: including the FPC face, the FPC face includes light source district (1) and is located control district (2) of light source district (1) side, light source district (1) tiling in the below of display screen, control district (2) are folded in the below of light source district (1), light source district (1) array is provided with welding point one (3) of mini LED lamp of welding, control district (2) are provided with welding point two (4) of welding chip and components and parts.
2. The whole-screen arranged type LED display screen backlight FPC flexible circuit board according to claim 1, wherein: one of the control areas (2) is located on either side of the light source area (1).
3. The whole-screen arranged type LED display screen backlight FPC flexible circuit board according to claim 1, wherein: the control area (2) is provided in plurality and is positioned on any side or multiple sides of the light source area (1).
4. The whole-screen arranged type LED display screen backlight FPC flexible circuit board according to claim 1, wherein: a plurality of radiating holes (5) are formed in the light source area (1) of the FPC board surface.
5. The whole-screen arranged type LED display screen backlight FPC flexible circuit board according to claim 4, wherein: the heat dissipation holes (5) are round holes, and the diameter of the heat dissipation holes is smaller than 1mm.
6. The whole-screen arranged type LED display screen backlight FPC flexible circuit board according to claim 1, wherein: the distance between the FPC board surface and the display screen is greater than 1mm.
7. The whole-screen arranged type LED display screen backlight FPC flexible circuit board according to claim 1, wherein: and the FPC board surface is provided with a positioning hole (6) for welding.
8. The whole-screen arranged type LED display screen backlight FPC flexible circuit board according to claim 1, wherein: the FPC board surface uses flexible circuit board substrate polyimide calendered copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223139966.2U CN220342504U (en) | 2022-11-24 | 2022-11-24 | Whole screen arrangement type LED display screen backlight FPC flexible circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223139966.2U CN220342504U (en) | 2022-11-24 | 2022-11-24 | Whole screen arrangement type LED display screen backlight FPC flexible circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220342504U true CN220342504U (en) | 2024-01-12 |
Family
ID=89441964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223139966.2U Active CN220342504U (en) | 2022-11-24 | 2022-11-24 | Whole screen arrangement type LED display screen backlight FPC flexible circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220342504U (en) |
-
2022
- 2022-11-24 CN CN202223139966.2U patent/CN220342504U/en active Active
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