CN213240754U - Backlight module and display device thereof - Google Patents
Backlight module and display device thereof Download PDFInfo
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- CN213240754U CN213240754U CN202022176508.0U CN202022176508U CN213240754U CN 213240754 U CN213240754 U CN 213240754U CN 202022176508 U CN202022176508 U CN 202022176508U CN 213240754 U CN213240754 U CN 213240754U
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Abstract
The utility model discloses a backlight module and display device thereof, backlight unit includes: middle frame and backplate, the backplate includes: a back plate main body; the folded edge is arranged on the periphery of the back plate main body; the extending part is arranged at one end of the folded edge, which is far away from the back plate main body, and a clamping groove is formed in the extending part; the center frame includes: the middle frame main body is positioned on the periphery of the back plate main body; the hanging lug is arranged on the middle frame main body, and a limiting gap is formed between the hanging lug and the middle frame main body; the clamping groove is connected with the hanging lug, and the extending part is accommodated in the limiting gap. Through set up the extension on the hem at the backplate, the extension is formed with the draw-in groove, is connected with the hangers through the draw-in groove, because the degree of depth of draw-in groove is less, consequently, has reduced backlight unit's the width of frame, is favorable to backlight unit's no frame ization.
Description
Technical Field
The utility model relates to a backlight module technical field especially relates to a backlight module and display device thereof.
Background
Narrow-frame and frame removal are appearance requirements put forward by the liquid crystal display television market. Practice proves that narrow-frame and even frameless televisions have strong competitiveness in the market.
At present, in the backlight module of the conventional television, the bending structure adopted by the back plate rubber frame buckle is feasible for ensuring the bending process, and the bending structure at least needs 2 times of the thickness of the plate material, so that the bending structure causes the width of the frame of the backlight module to be larger.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in providing a backlight unit and display device thereof, has solved the great problem of width of backlight unit frame among the prior art.
On the one hand, the embodiment of the utility model provides a backlight module, include: a middle frame and a back plate, the back plate comprising:
a back plate main body;
the folded edge is arranged on the periphery of the back plate main body; and
the extending part is arranged at one end of the folded edge, which is far away from the back plate main body, and a clamping groove is formed in the extending part;
the middle frame comprises:
the middle frame main body is arranged on the periphery of the back plate main body;
the hanging lug is arranged on the middle frame main body, and a limiting gap is formed between the hanging lug and the middle frame main body;
the clamping groove is connected with the hanging lug, and the extending part is accommodated in the limiting gap.
As a further improved technical solution, the extension portion includes a first extension portion, a second extension portion and a third extension portion, the first extension portion and the third extension portion are respectively disposed at two ends of the second extension portion, the first extension portion and the second extension portion extend toward the direction from the back plate to the hanging lug to form the slot, and an opening of the slot faces the hanging lug.
As a further improved technical scheme, the first extending part is provided with a first side surface, and the first side surface is back to the hanging lug; the second extension part is provided with a first end face, the first end face is connected with the first extension part, and a gap is formed between the first side face and the first end face.
As a further improved technical solution, the groove depth of the card slot is D1, the thickness of the first extension part is D1, the thickness of the second extension part is D2, and the depth of the notch is D2;
wherein D1 is D2, and D1 is D2; and/or
The width D3 of the limiting gap is not less than the thickness D1 of the first extension part; and/or
The width D3 of the limiting gap is not less than the thickness D2 of the second extension part.
As a further improved technical solution, the first extension part and the second extension part are formed by half-punching and cutting a plate material.
As a further improved technical solution, the hanger comprises:
a connecting part connected with the middle frame main body; and
a hanging part connected with the connection part;
the hanging part and the middle frame main body are arranged at intervals to form the limiting gap.
As a further improvement, the first extension portion and the second extension portion are perpendicular to the back plate main body.
As a further improved technical solution, the backlight module further includes:
a front frame, the front frame comprising:
the first frame is positioned above the middle frame; and
the second frame is connected with the first frame and is positioned on one side of the folded edge, which is far away from the backboard main body.
As a further improved technical scheme, a limiting plate is arranged on one side, away from the folded edge, of the middle frame main body;
the backlight module further comprises:
an optical assembly located between the limiting plate and the backplate body.
In a second aspect, an embodiment of the present invention provides a display device, including: a backlight module as claimed in any preceding claim.
Has the advantages that: through set up the extension on the hem at the backplate, the extension is formed with the draw-in groove, is connected with the hangers through the draw-in groove, because the groove depth of draw-in groove is less, consequently, has reduced backlight unit's the width of frame, is favorable to backlight unit's no frame ization.
Drawings
Fig. 1 is a cross-sectional view of a related art liquid crystal television.
Fig. 2 is a cross-sectional view of the backlight module of the present invention.
Fig. 3 is a cross-sectional view of the middle back plate of the present invention.
Fig. 4 is a schematic structural diagram of the display device of the present invention.
Fig. 5 is an enlarged view at a in fig. 4.
Fig. 6 is a schematic structural diagram of the middle back plate and the middle frame of the present invention.
Fig. 7 is an exploded view of the middle back plate and the middle frame of the present invention.
Fig. 8 is a schematic structural diagram of the middle frame of the present invention.
1. A back plate; 2. folding edges; 3. a bent structure; 4. a rubber frame; l, length of the bent structure; H. the thickness of the bent structure; 10. a back plate; 11. a back plate main body; 12. folding edges; 13. an extension portion; 131. a first extension portion; 1311. a first side surface; 1312. a second side surface; 1313. a second end face; 132. a second extension portion; 1321. a third side; 1322. a fourth side; 1323. a first end face; 1324. a second notch; 133. a third extension portion; 13a, a groove part; 14. a card slot; 15. a first notch; d1, thickness of first extension; d2, thickness of second extension; d3, width of the spacing gap; d1, groove depth of the card groove; d2, depth of first notch; 20. a middle frame; 20a, a limit gap; 21. a middle frame main body; 22. hanging a lug; 221. a connecting portion; 222. a hanging part; 23. a limiting plate; 30. a front frame; 31. a first frame; 32. a second frame; 40. an optical component; 41. a diffusion plate; 42. an optical film; 50. a display screen.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The inventor finds that due to the fact that narrow-frame and even frameless televisions have strong competitiveness in the market, the unframed framing is the development trend of liquid crystal televisions. In the prior art, in the backlight module of the conventional television, as shown in fig. 1, the folding edge 2 of the back plate 1 and the bending structure 3 adopted by the buckle of the rubber frame 4 are feasible, and for ensuring the bending process, the bending structure 3 needs at least 2 times of the thickness of the plate material, that is, the length L of the bending structure 3 is greater than 2 times of the thickness H of the bending structure 3, so that the bending structure 3 causes the width of the frame of the backlight module to be greater.
In order to solve the above problem, in the embodiment of the present invention, the back plate includes: a back plate main body; the folded edge is arranged on the periphery of the back plate main body; the extending part is arranged at one end of the folded edge, which is far away from the back plate main body, and a clamping groove is formed in the extending part; the middle frame comprises: the middle frame main body is positioned on the periphery of the back plate main body; the hanging lug is arranged on the middle frame main body, and a limiting gap is formed between the hanging lug and the middle frame main body; the clamping groove is connected with the hanging lug, and the extending part is accommodated in the limiting gap. Through set up the extension on the hem at the backplate, be formed with the draw-in groove on the extension, set up the hangers on the center, the draw-in groove is connected with the hangers, because the groove depth of draw-in groove is less, consequently, the extension both can reach and carry out spacing effect to the hangers, has reduced the width of backlight unit's frame again, is favorable to backlight unit's no frame ization.
Various non-limiting embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 2, fig. 3, fig. 5 and fig. 8, the present embodiment provides a backlight module, including: a middle frame 20 and a back plate 10, the back plate 10 comprising: a back plate main body 11; the folded edge 12 is arranged on the periphery of the back plate main body 11; the extension part 13 is arranged at one end of the folded edge 12, which is far away from the back plate main body 11, and the extension part 13 is provided with a clamping groove 14; the middle frame 20 includes: the middle frame main body 21 is arranged on the periphery of the backboard main body 11, and specifically, the middle frame main body 21 is positioned on one side of the folded edge 12 facing the backboard main body 11; the hanging lug 22 is arranged on the middle frame main body 21, and a limit gap 20a is formed between the hanging lug 22 and the middle frame main body 21; the locking groove 14 is connected to the hanging lug 22, and the extension 13 is accommodated in the limiting gap 20 a.
Specifically, the extension 13 is extended to be provided on the flange 12 because the groove depth d1 of the notch 14 is small. In contrast to the prior art, as shown in fig. 1, the length of the bending structure extending outside the folded edge (i.e., the length L of the bending structure) is at least 2 times the thickness H of the bending structure (i.e., L >2 × H). In this embodiment, the groove depth d1 of the card slot 14 is smaller, which is beneficial to reducing the width of the frame of the backlight module.
In one implementation manner of the embodiment of the present invention, as shown in fig. 2 and fig. 3, the extension portion 13 includes a first extension portion 131, a second extension portion 132, and a third extension portion 133, the first extension portion 131 and the third extension portion 133 are respectively disposed at two ends of the second extension portion 132, the first extension portion 131 and the second extension portion 132 extend toward the back plate toward the direction of the hanging lug 22 to form the card slot 14, and an opening of the card slot 14 faces the hanging lug 22.
Specifically, the extending direction of the first extending portion 131 is the same as the extending direction of the second extending portion 132, and the position of the first extending portion 131 and the position of the second extending portion 132 are staggered from each other, so that the first extending portion 131 and the second extending portion 132 form the card slot 14, the slot depth d1 of the card slot 14 is the distance between the surface of the card slot 14 and the bottom of the card slot 14, specifically, the first extending portion 131 is provided with a second side 1312, the second side 1312 is the side of the first extending portion 131 away from the backplane body 11, the second extending portion 132 is provided with a third side 1321, the third side 1321 is the side of the second extending portion 132 away from the backplane body 11, and the distance between the second side 1312 and the third side 1321 is the slot depth d1 of the card slot 14.
Specifically, as shown in fig. 3 and 7, the third extending portion 133 is inclined from bottom to top toward the back plate main body 11 side, and the inclined third extending portion 133 can enhance the strength of the extending portion 13. The peripheral edges of second extending portion 132 and third extending portion 133 are connected to flange 12 to form a groove 13a, and hanger 22 can be accommodated in groove 13a, and the width of the frame can be further reduced by accommodating hanger 22 in groove 13 a.
In one implementation manner of the embodiment of the present invention, as shown in fig. 2 and fig. 3, the first extending portion 131 is provided with a first side surface 1311, and the first side surface 1311 faces away from the hanging lug 22, that is, the first side surface 1311 is a side surface of the first extending portion 131 facing the backboard main body 11; the second extending portion 132 is provided with a first end surface 1323, the first end surface 1323 is connected to the first extending portion 131, that is, the first end surface 1323 is an end surface where the second extending portion 132 is connected to the first extending portion, and the first side surface 1311 and the first end surface 1323 form a first gap 15.
Specifically, the card slot 14 is conveniently clamped in the hanging lug 22, a second gap 1324 is provided at a joint of the second extension portion 132 and the first extension portion 131, there are two second gaps 1324, and the two second gaps 1324 are respectively located at two sides of the first extension portion 131. Due to the second gap 1324, the first extending portion 131 and the second extending portion 132 can be elastically deformed more easily, so that the card slot 14 can be connected to the hanging lug 22.
Specifically, the first extending portion 131 is provided with a second end surface 1313, at least a portion of the first end surface 1323 is connected to at least a portion of the second end surface 1313, the first end surface 1323 and the first side surface 1311 form the first notch 15, and the second end surface 1313 and the third side surface 1321 form the card slot 14.
In one implementation manner of the embodiment of the present invention, as shown in fig. 2 and 3, the groove depth of the card slot 14 is D1, the thickness of the first extension portion 131 is D1, the thickness of the second extension portion 132 is D2, and the depth of the notch is D2; wherein D1 is D2, and D1 is D2; and/or the width D3 of the spacing gap 20a is not less than the thickness D1 of the first extension 131; and/or the width D3 of the spacing gap 20a is not less than the thickness D2 of the second extension 132.
Specifically, the slot depth D1 of the slot 14 is equal to the depth D2 of the notch, and the thickness D1 of the first extension 131 is equal to the thickness D2 of the second extension 132. The second extending portion 132 has a fourth side 1322, the fourth side 1322 is a side of the second extending portion 132 facing the back plate main body 11, and a distance between the first side 1311 and the fourth side 1322 is the depth d2 of the gap.
Specifically, the width D3 of the spacing gap 20a is greater than the thickness D2 of the second extension 132 so that the second extension 132 can be received in the spacing gap 20 a. The width D3 of the spacing gap 20a is greater than the thickness D1 of the first extending portion 131, so that the first extending portion 131 can pass through the spacing gap 20a, specifically, the width D3 of the spacing gap 20a may be greater than or equal to D1+ D1, in order to avoid the first extending portion 131 from escaping from the spacing gap 20a, the width D3 of the spacing gap 20a may be slightly smaller than D1+ D1, when the first extending portion 131 is inserted into the spacing gap 20a, the hanging lug 22 may be deformed to pass through the first extending portion 131, and after the first extending portion 131 passes through, the hanging lug 22 may be deformed to limit the first extending portion 131 and the second extending portion 132.
Specifically, as shown in fig. 2 and 7, the middle frame body 21 is located on the back plate body 11, and the back plate body 11 limits the downward displacement of the middle frame 20; the folding edge 12 is positioned at the outer side of the middle frame main body 21, and the folding edge 12 limits the displacement of the middle frame 20 towards the outer side of the backlight module; the hanging lug 22 is connected with the card slot 14, specifically, the hanging lug 22 is located at the outer side of the second extension part 132, and the extension part 13 limits the displacement of the middle frame 20 towards the inner side of the backlight module; at least part of the second end surface 1313 abuts against the hanging lug 22, and the extension 13 limits upward displacement of the middle frame 20.
In one implementation of the embodiment of the present invention, as shown in fig. 2, 3 and 7, the first extending portion 131 and the second extending portion 132 are formed by a plate material through a half-punching and cutting process. The extension 13 may be integrally formed with the flange 12, for example, by punching the plate material to form two offset portions, one as the first extension 131 and the other as the second diffraction portion. Specifically, in the forming process, the edge of the plate material may be first half-punched and cut to form the first extending portion 131, then the plate material is continuously punched to form the second extending portion 132 and the third extending portion 133, the second extending portion 132 and the third extending portion 133 form the groove portion 13a, then the edge of the plate material is folded to form the folded edge 12, and the rest is used as the back plate main body 11, thereby completing the manufacturing of the back plate 10.
In one implementation manner of the embodiment of the present invention, as shown in fig. 2, fig. 6 and fig. 8, the hanging lug 22 includes: a connecting portion 221, specifically, the connecting portion 221 is connected to an outer side of the middle frame main body 21; and a hanging portion 222, the hanging portion 222 being connected to the connecting portion 221; the hanging portion 222 is spaced apart from the middle frame body 21 to form the limit gap 20 a. At least part of the second end face 1313 abuts a surface of the hanging portion 222.
Specifically, one end of the connecting portion 221 is connected to the middle frame main body 21, and the other end of the connecting portion 221 is connected to the hanging portion 222. Since the hanging portion 222 extends in the longitudinal direction of the hem 12, the upper surface of the hanging portion 222 can abut against the second end surface 1313 to hang the hanger 22, and the first extending portion 131 restricts upward displacement of the hanging portion 222.
Specifically, the hanging portion 222 is spaced apart from the middle frame body 21 to form a limiting gap 20a to define the second extending portion 132, thereby preventing the first extending portion 131 from coming out of the limiting gap 20 a. Specifically, the folded edge 12 is located outside the middle frame main body 21 and inside the hanging portion 222, and then a limit gap 20a exists between the middle frame main body 21 and the hanging portion 222, and the limit gap 20a can be penetrated by the first extending portion 131. As shown in fig. 2, the first extension 131 may be inserted into the spacing gap 20a in an upward direction.
In one implementation of the embodiment of the present invention, as shown in fig. 2, the connecting portion 221 is located above the second extending portion 132.
Specifically, since the middle frame main body 21 and the hanging portion 222 are respectively located inside and outside the second extending portion 132, the connecting portion 221 connecting the middle frame main body 21 and the hanging portion 222 needs to straddle the second extending portion 132, specifically, the connecting portion 221 is located above the second extending portion 132, that is, the connecting portion 221 straddles above the second extending portion 132, connecting the middle frame main body 21 and the hanging portion 222. For example, as shown in fig. 2, the side surface of the connection portion 221 restricts displacement of the extension portion 13 in the direction perpendicular to the paper surface.
In one implementation manner of the embodiment of the present invention, as shown in fig. 2, in order to form a larger accommodating space in the folded edge 12, the first extending portion 131 and the second extending portion 132 are perpendicular to the back plate main body 11, and of course, the folded edge 12 is also perpendicular to the back plate main body 11. Specifically, the flaps 12 may be located on one or more sides of the backplate main body 11, for example, the flaps 12 are located on three sides of the backplate 10, and then the middle frame 20 is also located on three sides of the backplate 10. The flange 12 may form a receiving space with the body of the back plate 10.
In an implementation manner of the embodiment of the present invention, as shown in fig. 2 and fig. 5, in order to further fix the middle frame 20, the backlight module further includes: a front frame 30, the front frame 30 comprising: a first frame 31, wherein the first frame 31 is positioned above the middle frame 20; and the second frame 32 is connected with the first frame 31, and the second frame 32 is located on one side of the folded edge 12 away from the backboard main body 11.
Specifically, the middle frame 20 abuts against the first frame 31, and the first frame 31 restricts upward displacement of the middle frame 20. The second rim 32 is located outside the flap 12, and the flap 12 is protected by the second rim 32. Specifically, the second frame 32 is located outside the hanging portion 222, and the flange 12 and the hanging portion 222 are wrapped inside the second frame 32.
In one implementation manner of the embodiment of the present invention, as shown in fig. 2 and 5, a limiting plate 23 is disposed on one side of the middle frame main body 21 away from the folded edge 12; the backlight module further comprises: an optical assembly 40, wherein the optical assembly 40 is located between the limiting plate 23 and the backboard body 11. Specifically, the optical assembly 40 includes an optical film 42 and a diffusion plate 41, the diffusion plate 41 being located on the back plate body 11, the optical film 42 being located on the diffusion plate.
As shown in fig. 2, fig. 4 and fig. 5, based on the backlight module of the above embodiment, the present invention further provides a preferred embodiment of the display device:
the utility model discloses a display device, include: the backlight module is described above.
Specifically, the display device further includes: and the display screen 50 is positioned between the limiting plate 23 and the first frame 31.
It should be understood that various technical features of the above-mentioned embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features of the above-mentioned embodiments are not described, however, as long as there is no contradiction between the combinations of the technical features, the combinations should be considered as the scope of the description in the present specification.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A backlight module includes: a middle frame and a back plate, wherein the back plate comprises:
a back plate main body;
the folded edge is arranged on the periphery of the back plate main body; and
the extending part is arranged at one end of the folded edge, which is far away from the back plate main body, and a clamping groove is formed in the extending part;
the middle frame comprises:
the middle frame main body is arranged on the periphery of the back plate main body;
the hanging lug is arranged on the middle frame main body, and a limiting gap is formed between the hanging lug and the middle frame main body;
the clamping groove is connected with the hanging lug, and the extending part is accommodated in the limiting gap.
2. The backlight module according to claim 1, wherein the extension portion comprises a first extension portion, a second extension portion and a third extension portion, the first extension portion and the third extension portion are respectively disposed at two ends of the second extension portion, the first extension portion and the second extension portion extend toward the back plate toward the hanging ring to form the slot, and an opening of the slot faces the hanging ring.
3. The backlight module as claimed in claim 2, wherein the first extension has a first side facing away from the hanging lug; the second extension part is provided with a first end face, the first end face is connected with the first extension part, and a gap is formed between the first side face and the first end face.
4. The backlight module as claimed in claim 3, wherein the slot has a depth D1, the first extension has a thickness D1, the second extension has a thickness D2, and the notch has a depth D2;
wherein D1 is D2, and D1 is D2; and/or
The width D3 of the limiting gap is not less than the thickness D1 of the first extension part; and/or
The width D3 of the limiting gap is not less than the thickness D2 of the second extension part.
5. The backlight module according to claim 2,
the first extension part and the second extension part are formed by sheet materials through half stamping and cutting processing.
6. A backlight module according to claim 1, wherein the suspension loops comprise:
a connecting part connected with the middle frame main body; and
a hanging part connected with the connection part;
the hanging part and the middle frame main body are arranged at intervals to form the limiting gap.
7. The backlight module according to claim 2,
the first extension and the second extension are both perpendicular to the backplate main body.
8. A backlight module according to any one of claims 1-7, further comprising:
a front frame, the front frame comprising:
the first frame is positioned above the middle frame; and
the second frame is connected with the first frame and is positioned on one side of the folded edge, which is far away from the backboard main body.
9. The backlight module according to any of claims 1-7,
a limiting plate is arranged on one side, far away from the folded edge, of the middle frame main body;
the backlight module further comprises:
an optical assembly located between the limiting plate and the backplate body.
10. A display device, comprising:
a backlight module according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022176508.0U CN213240754U (en) | 2020-09-28 | 2020-09-28 | Backlight module and display device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022176508.0U CN213240754U (en) | 2020-09-28 | 2020-09-28 | Backlight module and display device thereof |
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| CN213240754U true CN213240754U (en) | 2021-05-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023099409A (en) * | 2021-12-31 | 2023-07-13 | 緯創資通股▲ふん▼有限公司 | display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2023099409A (en) * | 2021-12-31 | 2023-07-13 | 緯創資通股▲ふん▼有限公司 | display device |
| JP7326520B2 (en) | 2021-12-31 | 2023-08-15 | 緯創資通股▲ふん▼有限公司 | display device |
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