CN217425895U - Double-screen backlight module - Google Patents
Double-screen backlight module Download PDFInfo
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- CN217425895U CN217425895U CN202221727481.2U CN202221727481U CN217425895U CN 217425895 U CN217425895 U CN 217425895U CN 202221727481 U CN202221727481 U CN 202221727481U CN 217425895 U CN217425895 U CN 217425895U
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Abstract
The utility model relates to a pair screen backlight unit, include: the bottom plate, first center, the second center, first light guide plate and second light guide plate, the first horizontal limiting plate block that sets up through the both ends of first center is in first spacing recess, the second horizontal limiting plate block that the both ends of second center set up is in the spacing recess of second, the first buckle block on one side of the first center of cooperation is at first lock inslot, the second buckle block on one side of second center is at second lock inslot, can carry out spacing fixed on the triaxial direction to first center and second center, can avoid first center and second center to take off the condition of deformation outward in appearance, can fix first light guide plate and second light guide plate well, make double-screen backlight unit have better display effect.
Description
Technical Field
The utility model relates to a liquid crystal backlight technical field, in particular to pair screen backlight unit.
Background
At present, the LED backlight source technology is widely used for the illumination of instruments in automobiles because of long service life and low power consumption, common backlight modules are flexible circuit boards of LEDs which are fixedly welded on the single face or the double faces of a light guide plate, and when light beams emitted by the LEDs pass through sawtooth reticulate patterns and cylindrical lattice points on the light guide plate, the light beams can be uniformly distributed on the light guide plate, so that the illumination of automobile instrument panels is realized.
In the existing backlight module of the double-linked screen, the surface area of the middle frame is large, the thickness of the middle frame is thin, and the phenomenon of outward-pushing deformation is easy to occur.
SUMMERY OF THE UTILITY MODEL
Accordingly, there is a need for a dual-panel backlight module.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a dual-screen backlight module comprises: the backlight module comprises a bottom plate, a first middle frame, a second middle frame, a first light guide plate and a second light guide plate;
the bottom plate is provided with a first mounting groove and a second mounting groove, the first light guide plate is arranged in the first mounting groove, and the second light guide plate is arranged in the second mounting groove;
two ends of the first middle frame are provided with first transverse limiting plates, a first limiting groove is formed in the side wall of the first mounting groove, the first transverse limiting plates are arranged in the first limiting grooves, a first buckle is arranged on the first side of the first middle frame, a first buckling groove is formed in the bottom plate, and the first buckle is clamped in the first buckling groove;
the two ends of the second middle frame are provided with second transverse limiting plates, a second limiting groove is formed in the side wall of the second mounting groove, the second transverse limiting plates are arranged in the second limiting groove, a second buckle is arranged on the first side of the second middle frame, a second buckling groove is formed in the bottom plate, and the second buckle is clamped in the second buckling groove.
In one embodiment, a first adhesive layer is arranged on the side wall of the first limiting groove, and/or a second adhesive layer is arranged on the side wall of the second limiting groove.
In one embodiment, the first buckle and the first buckle slot are configured as follows:
the first buckle and the first buckling groove are at least provided with a first clamping block and at least provided with a first clamping groove, and the first clamping block is embedded in the first clamping groove.
In one embodiment, the first catch block and the first catch groove are arranged to:
the first clamping block is arranged on the side wall of the first buckling groove, and the first clamping groove is formed in the side wall of the first buckle;
or the first clamping block is arranged on the side wall of the first buckle, and the first clamping groove is formed in the side wall of the first buckling groove.
In one embodiment, the second buckle and the second buckle slot are configured to:
the second buckle and the second buckling groove are at least provided with a second clamping block and at least provided with a second clamping groove, and the second clamping block is embedded in the second clamping groove.
In one embodiment, the second catch block and the second catch groove are arranged to:
the second clamping block is arranged on the side wall of the second buckling groove, and the second clamping groove is formed in the side wall of the second buckle;
or the second clamping block is arranged on the side wall of the second buckle, and the second clamping groove is formed in the side wall of the second buckling groove.
In one embodiment, the first middle frame is provided with a first protrusion, the side wall of the first mounting groove is provided with a first groove, the first protrusion is embedded in the first groove, and/or the second middle frame is provided with a second protrusion, the side wall of the second mounting groove is provided with a second groove, and the second protrusion is embedded in the second groove.
In one embodiment, a hook is disposed on the second middle frame, a hook groove is disposed on a side wall of the second mounting groove, and the hook is engaged in the hook groove.
In one embodiment, a first limiting boss is arranged on a side wall of the first light guide plate and abutted against a side wall of the first mounting groove, and/or a second limiting boss is arranged on a side wall of the second light guide plate and abutted against a side wall of the second mounting groove.
In one embodiment, a first limit silica gel is arranged in the first installation groove, one side of the first light guide plate is abutted with the first limit silica gel, and/or a second limit silica gel is arranged in the second installation groove, and one side of the second light guide plate is abutted with the second limit silica gel.
The utility model has the advantages that: the utility model provides a pair of double-screen backlight module, the first horizontal limiting plate block that sets up through the both ends of first center is in first spacing recess, the horizontal limiting plate block of second that the both ends of second center set up is in the spacing recess of second, the first buckle block on one side of the first center of cooperation is at first lock inslot, the second buckle block on one side of second center is at second lock inslot, can carry out spacing fixed on the triaxial direction to first center and second center, can avoid first center and second center to appear taking off the condition of deformation outward, can fix first light guide plate and second light guide plate well, make double-screen backlight module have better display effect.
Drawings
Fig. 1 is a schematic structural diagram of a dual-screen backlight module according to an embodiment;
FIG. 2 is a schematic structural diagram of a bottom plate, a first middle frame and a first light guide plate according to an embodiment;
fig. 3 is a schematic structural diagram of the bottom plate, the second middle frame and the second light guide plate according to an embodiment.
In the attached drawings, 10, a dual-screen backlight module; 100. a base plate; 110. a first mounting groove; 111. a first limit groove; 112. a first fastening slot; 120. a second mounting groove; 121. a second limit groove; 122. a second fastening groove; 200. a first middle frame; 210. a first transverse limiting plate; 220. a first buckle; 230. a first bump; 300. a second middle frame; 310. a second transverse limiting plate; 320. a second buckle; 330. a second bump; 400. a first light guide plate; 500. a second light guide plate.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The following will combine the drawings of the embodiments of the present invention to further describe the technical solution of the present invention, and the present invention is not limited to the following specific embodiments.
It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience of description and simplicity of description, but does not indicate or imply that the equipment or components referred to must have specific orientations, be constructed in specific orientations, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art will understand the specific meanings of the terms according to specific situations.
In one embodiment, as shown in fig. 1, 2 and 3, a dual-panel backlight module 10 includes: a chassis 100, a first middle frame 200, a second middle frame 300, a first light guide plate 400, and a second light guide plate 500; a first mounting groove 110 and a second mounting groove 120 are formed in the bottom plate 100, the first light guide plate 400 is disposed in the first mounting groove 110, and the second light guide plate 500 is disposed in the second mounting groove 120; two ends of the first middle frame 200 are provided with first transverse limiting plates 210, a first limiting groove 111 is formed in the side wall of the first mounting groove 110, the first transverse limiting plates 210 are arranged in the first limiting groove 111, a first buckle 220 is arranged on the first side of the first middle frame 200, a first buckling groove 112 is formed in the bottom plate 100, and the first buckle 220 is clamped in the first buckling groove 112; the two ends of the second middle frame 300 are provided with second transverse limiting plates 310, the side wall of the second mounting groove 120 is provided with a second limiting groove 121, the second transverse limiting plate 310 is arranged in the second limiting groove 121, a first side of the second middle frame 300 is provided with a second buckle 320, the bottom plate 100 is provided with a second buckling groove 122, and the second buckle 320 is clamped in the second buckling groove 122.
In this embodiment, the size of the second middle frame 300 is larger than that of the first middle frame 200, for example, the first middle frame 200 is a rubber frame of a 12.3 inch display screen, the second middle frame 300 is a rubber frame of a 27 inch display screen, the first transverse limiting plates 210 arranged at two ends of the first middle frame 200 are clamped in the first limiting grooves 111, so as to limit the movement of the first middle frame 200 in the X-axis and Y-axis directions, the second transverse limiting plates 310 arranged at two ends of the second middle frame 300 are clamped in the second limiting grooves 121, so as to limit the movement of the second middle frame 300 in the X-axis and Y-axis directions, the first buckle 220 on one side of the first middle frame 200 is clamped in the first buckling groove 112, so as to limit the movement of the first middle frame 200 in the Z-axis direction, the second buckle 320 on one side of the second middle frame 300 is clamped in the second buckling groove 122, so as to limit the movement of the second middle frame 300 in the Z-axis direction, thereby can carry out spacing fixed in the triaxial direction to first center 200 and second center 300, can avoid first center 200 and second center 300 the condition of taking off the deformation outward to appear, can fix first light guide plate 400 and second light guide plate 500 well, can fix optical assembly on first light guide plate 400 and the optical assembly on the second light guide plate 500 well for pair screen backlight unit 10 has better display effect.
In one embodiment, a first adhesive layer is disposed on a sidewall of the first limiting groove 111. Specifically, the one side of first viscose layer is connected with the lateral wall of first spacing recess 111's bottom, and the another side and the first horizontal limiting plate 210 of first viscose layer are connected, can fix first horizontal limiting plate 210 in first spacing recess 111 better to can fix first center 200 on bottom plate 100 better.
In one embodiment, a second adhesive layer is disposed on a sidewall of the second limiting groove 121. Specifically, the one side of second viscose layer is connected with the lateral wall of the bottom of the spacing recess 121 of second, and the another side and the horizontal limiting plate 310 of second on second viscose layer are connected, can fix the horizontal limiting plate 310 of second in the spacing recess 121 of second better to can fix the second center 300 on bottom plate 100 better.
It should be understood that the dual-display backlight module 10 further includes: a first optical assembly and a second optical assembly, the first optical assembly comprising: the first light guide plate comprises a first reflection film, a first peep-proof film, a first upper brightness enhancement film, a first lower brightness enhancement film and a first light diffusion film, wherein the first reflection film is attached to a first surface of the first light guide plate 400, namely, the first light guide plate 400 faces the surface of the base plate 100, and the first peep-proof film, the first upper brightness enhancement film, the first lower brightness enhancement film and the first light diffusion film are sequentially stacked on a second surface of the first light guide plate 400, so that the optical effect of the first light guide plate 400 can be enhanced.
In this embodiment, the second optical component includes: the second light guide plate 500 is provided with a first surface facing the bottom plate 100, and the first light guide plate 500 is provided with a first upper light-adding film, a second lower light-adding film and a second light-diffusing film, wherein the first light-adding film, the second upper light-adding film, the second lower light-adding film and the second light-diffusing film are sequentially stacked on the second surface of the second light guide plate 500, so that the optical effect of the second light guide plate 500 can be enhanced.
In one embodiment, a position-limiting column is disposed in the second mounting groove 120, a position-limiting groove is disposed on the second light guide plate 500, the position-limiting column is embedded in the position-limiting groove, and the second light guide plate 500 can be more stably fixed in the second mounting groove 120.
In one embodiment, the first buckle 220 and the first buckle slot 112 are configured to: the first buckle 220 and the first buckling groove 112 are at least provided with a first buckling block and at least provided with a first buckling groove, the first buckling block is embedded in the first buckling groove, so that the first buckle 220 can be buckled in the first buckling groove 112, the first middle frame 200 is wrapped on the side wall of the bottom plate 100 through the first buckle 220, the movement of the first middle frame 200 in the Z-axis direction can be well limited, and the situation that the first middle frame 200 is loosened can be avoided.
In one embodiment, the first catch block and the first catch groove are arranged to: the first clamping block is arranged on the side wall of the first buckling groove, and the first clamping groove is formed in the side wall of the first buckle.
In another embodiment, the first engaging block and the first engaging groove are provided as follows: the first clamping block is arranged on the side wall of the first buckle, and the first clamping groove is formed in the side wall of the first buckling groove.
In one embodiment, the second snap 320 and the second snap groove 122 are configured as follows: the second buckle 320 and the second buckle groove 122 are at least provided with a second clamping block and at least provided with a second clamping groove, and the second clamping block is embedded in the second clamping groove. In this way, the second buckle 320 can be buckled in the second buckling groove 122, and the second middle frame 300 is wrapped on the side wall of the bottom plate 100 through the second buckle 320, so that the movement of the second middle frame 300 in the Z-axis direction can be well limited, and the second middle frame 300 can be prevented from being loosened.
In one embodiment, the second catch block and the second catch groove are arranged to: the second clamping block is arranged on the side wall of the second buckling groove, and the second clamping groove is formed in the side wall of the second buckle.
In another embodiment, the second catch block and the second catch groove are arranged such that: the second clamping block is arranged on the side wall of the second buckle, and the second clamping groove is formed in the side wall of the second buckling groove.
In one embodiment, as shown in fig. 2, the first middle frame 200 is provided with a first protrusion 230, a side wall of the first mounting groove 110 is provided with a first groove, and the first protrusion 230 is embedded in the first groove. Specifically, the number of the first protrusions 230 is provided with a plurality of first protrusions 230, each first protrusion 230 is uniformly distributed on the outer side surface of the first middle frame 200, the number of the first grooves is the same as the number of the first protrusions 230, each first groove is uniformly distributed on the side wall of the first installation groove 110, each first protrusion 230 is embedded in one first groove, so that the positions between the first middle frame 200 and the side wall of the first installation groove 110 can be kept relatively fixed, and the first middle frame 200 is more stably fixed on the bottom plate 100.
In one embodiment, as shown in fig. 3, a second protrusion 330 is disposed on the second middle frame 300, a second groove is disposed on a side wall of the second mounting groove 120, and the second protrusion 330 is embedded in the second groove. Specifically, the number of the second protrusions 330 is provided with a plurality of second protrusions 330, each of the second protrusions 330 is uniformly distributed on the outer side surface of the second middle frame 300, the number of the second grooves is the same as the number of the second protrusions 330, each of the second grooves is uniformly distributed on the side wall of the second mounting groove 120, each of the second protrusions 330 is embedded in one of the second grooves, so that the positions between the second middle frame 300 and the side wall of the second mounting groove 120 can be kept relatively fixed, and the second middle frame 300 is more stably fixed on the bottom plate 100.
In order to fix the second middle frame 300 with a larger size, in one embodiment, a hook is disposed on the second middle frame 300, and a hook groove is disposed on a side wall of the second mounting groove 120, and the hook is engaged in the hook groove. Specifically, the trip sets up on the second side of second center 300, and the cross sectional shape of trip is "L" shape, through the trip gomphosis in the trip recess, and the lateral wall butt of trip and second mounting groove 120, can fix the second side of second center 300 better.
In one embodiment, a third transverse limiting plate is disposed on the second side of the first middle frame 200, a third limiting groove is disposed on a sidewall of the second mounting groove 120, and the third transverse limiting plate is disposed in the third limiting groove, so that the second side of the first middle frame 200 can be better fixed.
In one embodiment, a first limiting boss is disposed on a side wall of the first light guide plate 400, the first limiting boss abuts against a side wall of the first mounting groove 110, the number of the first limiting bosses is multiple, and the first limiting bosses are uniformly distributed on one side, close to the light source, of the first light guide plate 400, so that the first light guide plate 400 can be limited, meanwhile, the first light guide plate 400 can be prevented from being directly contacted with the side wall of the first mounting groove 110, and the situation that the sawteeth of the first light guide plate 400 are yellowed or deformed due to heat generated during the operation of the light source can be avoided.
In an embodiment, the sidewall of the second light guide plate 500 is provided with a plurality of second limiting bosses, the second limiting bosses are abutted against the sidewall of the second mounting groove 120, and the second limiting bosses are uniformly distributed on one side of the second light guide plate 500 close to the light source, so that the second light guide plate 500 can be limited, the second light guide plate 500 can be prevented from directly contacting with the sidewall of the second mounting groove 120, and the situation that the sawteeth of the second light guide plate 500 are yellowed or deformed due to heat generated by the light source during operation can be avoided.
In one embodiment, a first limit silicone is disposed in the first mounting groove 110, and one side of the first light guide plate 400 abuts against the first limit silicone. Specifically, the quantity of first spacing silica gel sets up to two, and two first spacing silica gel intervals set up on the both ends of a lateral wall of first mounting groove 110, and the both ends of the one side that first light guide plate 400 keeps away from the light source support interference fit with first spacing silica gel respectively spacing fixed, can avoid double screen backlight unit 10 in transportation or work, and the condition that not hard up jump takes place for first light guide plate 400.
In one embodiment, a second position-limiting silicone rubber is disposed in the second mounting groove 120, and one side of the second light guide plate 500 abuts against the second position-limiting silicone rubber. Specifically, the number of the second limit silica gel is set to two, two intervals of the second limit silica gel are arranged at two ends of one side wall of the second mounting groove 120, two ends of one side of the second light guide plate 500 far away from the light source are respectively fixed in an interference fit manner by abutting against the second limit silica gel, and therefore the situation that the second light guide plate 500 is loosened and jumped off in the transportation process or the working process of the double-screen backlight module 10 can be avoided.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a double screen backlight unit which characterized in that includes: the backlight module comprises a bottom plate, a first middle frame, a second middle frame, a first light guide plate and a second light guide plate;
the bottom plate is provided with a first mounting groove and a second mounting groove, the first light guide plate is arranged in the first mounting groove, and the second light guide plate is arranged in the second mounting groove;
two ends of the first middle frame are provided with first transverse limiting plates, a first limiting groove is formed in the side wall of the first mounting groove, the first transverse limiting plates are arranged in the first limiting grooves, a first buckle is arranged on the first side of the first middle frame, a first buckling groove is formed in the bottom plate, and the first buckle is clamped in the first buckling groove;
the two ends of the second middle frame are provided with second transverse limiting plates, a second limiting groove is formed in the side wall of the second mounting groove, the second transverse limiting plates are arranged in the second limiting groove, a second buckle is arranged on the first side of the second middle frame, a second buckling groove is formed in the bottom plate, and the second buckle is clamped in the second buckling groove.
2. The dual-screen backlight module as claimed in claim 1, wherein a first adhesive layer is disposed on a sidewall of the first limiting groove, and/or a second adhesive layer is disposed on a sidewall of the second limiting groove.
3. The dual-screen backlight module as claimed in claim 1, wherein the first buckle and the first buckle slot are configured as:
the first buckle and the first buckling groove are at least provided with a first clamping block and at least provided with a first clamping groove, and the first clamping block is embedded in the first clamping groove.
4. The dual-screen backlight module as claimed in claim 3, wherein the first engaging block and the first engaging groove are configured as follows:
the first clamping block is arranged on the side wall of the first buckling groove, and the first clamping groove is formed in the side wall of the first buckle;
or the first clamping block is arranged on the side wall of the first buckle, and the first clamping groove is formed in the side wall of the first buckling groove.
5. The dual-screen backlight module according to claim 3 or 4, wherein the second fastener and the second fastener groove are configured as follows:
the second buckle and the second buckling groove are at least provided with a second clamping block and at least provided with a second clamping groove, and the second clamping block is embedded in the second clamping groove.
6. The dual-screen backlight module as claimed in claim 5, wherein the second engaging block and the second engaging groove are configured as follows:
the second clamping block is arranged on the side wall of the second buckling groove, and the second clamping groove is formed in the side wall of the second buckle;
or the second clamping block is arranged on the side wall of the second buckle, and the second clamping groove is formed in the side wall of the second buckling groove.
7. The dual-screen backlight module as claimed in claim 1, wherein the first middle frame has a first protrusion, the sidewall of the first mounting groove has a first recess, the first protrusion is embedded in the first recess, and/or the second middle frame has a second protrusion, the sidewall of the second mounting groove has a second recess, and the second protrusion is embedded in the second recess.
8. The dual-screen backlight module as claimed in claim 1, wherein the second middle frame is provided with a hook, the side wall of the second mounting groove is provided with a hook groove, and the hook is engaged in the hook groove.
9. The dual-screen backlight module as claimed in claim 1, wherein a first position-limiting protrusion is disposed on a sidewall of the first light guide plate, the first position-limiting protrusion abuts against a sidewall of the first mounting groove, and/or a second position-limiting protrusion is disposed on a sidewall of the second light guide plate, and the second position-limiting protrusion abuts against a sidewall of the second mounting groove.
10. The dual-screen backlight module as claimed in claim 1, wherein a first position-limiting silica gel is disposed in the first mounting groove, one side of the first light guide plate abuts against the first position-limiting silica gel, and/or a second position-limiting silica gel is disposed in the second mounting groove, and one side of the second light guide plate abuts against the second position-limiting silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221727481.2U CN217425895U (en) | 2022-07-06 | 2022-07-06 | Double-screen backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221727481.2U CN217425895U (en) | 2022-07-06 | 2022-07-06 | Double-screen backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217425895U true CN217425895U (en) | 2022-09-13 |
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ID=83173948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221727481.2U Active CN217425895U (en) | 2022-07-06 | 2022-07-06 | Double-screen backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217425895U (en) |
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2022
- 2022-07-06 CN CN202221727481.2U patent/CN217425895U/en active Active
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