CN212846268U - Ultrathin flat combined backlight module, display and television - Google Patents
Ultrathin flat combined backlight module, display and television Download PDFInfo
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- CN212846268U CN212846268U CN202021866254.9U CN202021866254U CN212846268U CN 212846268 U CN212846268 U CN 212846268U CN 202021866254 U CN202021866254 U CN 202021866254U CN 212846268 U CN212846268 U CN 212846268U
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Abstract
The utility model provides an ultra-thin pure flat combined type backlight module, the backlight module comprises a direct type backlight part and an edge type backlight part from top to bottom, and the direct type backlight part comprises a direct type LED lamp strip; the side-in type backlight portion comprises side-in type LED lamp strips and a heat dissipation aluminum substrate, the side-in type LED lamp strips are bonded to the bottom of the inner side of the heat dissipation aluminum substrate located on the short side of the back plate and are correspondingly arranged on the side portion of the light guide plate, the long side of the back plate is connected with a plastic back shell to form a cavity used for containing the main plate, the driving power supply board and the circuit lines, and the outer side of the plastic back shell is flush with the outer side of the metal back plate corresponding to the direct type. The utility model provides a pair of but combined type backlight unit of ultra-thin pure flat formula wide application improves the uneven problem in backlight unit back in the past in the backlight unit of TV, display, makes backlight unit more ultra-thin, more level and more smooth, more pleasing to the eye.
Description
Technical Field
The utility model belongs to the liquid crystal display field, concretely relates to combined type backlight unit, display and TV of ultra-thin pure flat formula.
Background
Since the liquid crystal itself does not have the property of emitting light, a light-emitting module is required to illuminate the display module in the system of the display module, and the main function of the backlight module is to provide illumination in the display system. The common backlight module is placed according to the light source and is classified, generally can be divided into two types, and the backlight module and the straight following formula backlight module of side-lighting formula, the backlight module of side-lighting formula is placed luminous light source in the terminal surface department of light guide plate, has the unilateral to place, the contralateral is placed and four sides are placed, straight following formula backlight module does not generally have the light guide plate, only need place luminous light source at the liquid crystal back can. In view of the trend in the display field, the overall device is thinned and made more beautiful by reducing the optical density (hereinafter abbreviated as "OD value") or by using a glass light guide plate, regardless of the direct type or the side type using a backlight. However, because of the structural problem of the backlight module, the direct type backlight module has an OD value of 6-8mm and a minimum thickness, and the glass back panel side light-emitting type backlight module has a minimum thickness of about 5 mm. However, due to the installation of hardware such as a driving power supply, a main board and the like, the back needs to be provided with a raised plastic back shell to shield the hardware, so that the thickness of the thickest part of the whole machine can reach 30-50mm, the back of the whole machine cannot be purified, and the attractiveness of the product is seriously affected.
How to provide a back plate pure flat, ultra-thin combined type backlight unit, display and TV is the utility model discloses the problem that awaits solution urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem in the background art, a combined type backlight unit, display and TV of ultra-thin pure flat formula are provided. The utility model provides a pair of combined type backlight unit, display and TV of ultra-thin pure flat formula has solved the protruding thickness that influences whole machine of traditional side income formula or straight following formula model of back and pleasing to the eye problem.
The above technical purpose of the present invention is achieved by the following technical solutions:
an ultrathin flat composite backlight module comprises a direct type backlight part and an edge type backlight part from top to bottom, the backlight module sequentially comprises a metal back plate, a light guide plate, an optical membrane and a display screen from back to front, the metal back plate corresponding to the edge type backlight part comprises a back plate bending part and a back plate horizontal part, the back plate bending part and the back plate horizontal part are arranged in an inclined angle mode, the direct type backlight part comprises a direct type LED light bar, and the direct type LED light bar is arranged on the inner side of the metal back plate corresponding to the direct type backlight part and correspondingly arranged on the rear part of the light guide plate; the shape of the metal back plate corresponding to the side-in type backlight portion is an L shape formed by a back plate short edge and a back plate long edge, the back plate short edge is perpendicular to the back plate long edge, the side-in type backlight portion comprises a side-in type LED lamp strip and a heat dissipation aluminum substrate, the heat dissipation aluminum substrate is fixedly connected to the back plate short edge and the back plate long edge, the side-in type LED lamp strip is bonded to the bottom of the inner side of the heat dissipation aluminum substrate located on the back plate short edge and is correspondingly arranged on the side portion of the light guide plate, the back plate long edge is connected with a plastic back shell to form a cavity used for containing a main plate, a driving power supply plate and a circuit, the main plate, the driving power supply plate and the circuit are arranged on the.
Preferably, the short edge of the back plate, the long edge of the back plate, the bent part of the back plate and the horizontal part of the back plate are formed into the metal back plate structure by one-time punch forming.
According to the ultrathin flat combined backlight module, the direct type backlight part further comprises supporting columns, the supporting columns are bonded on the inner side of the horizontal part of the back plate, and the supporting columns and the direct type LED lamp strips are arranged alternately at uniform intervals.
Preferably, the front projection area ratio of the direct type backlight portion to the side type backlight portion is 8:2 to 7: 3.
Preferably, the light guide plate corresponding to the direct-type backlight unit is coated with an organic material that enables the light guide plate to have a diffuser plate atomizing function.
Preferably, the backlight module further comprises a reflective sheet disposed on the inner side of the metal back plate.
Preferably, the optical film includes a diffusion sheet, a BEF and a DBEF sequentially arranged from back to front. In the present invention, BEF refers to a brightness enhancement film, and DBEF refers to a reflective brightness enhancement film.
Preferably, a rubber frame is disposed around the backlight module, so that the reflector plate, the light guide plate, the diffuser plate, the BEF and the DBEF are tightly fitted.
Based on the same inventive concept, the utility model also provides an ultra-thin flat display, including as above-mentioned ultra-thin flat combined type backlight unit.
Based on the same inventive concept, the utility model also provides an ultra-thin flat television, including as above-mentioned ultra-thin flat combined type backlight unit.
Compared with the prior art, the utility model has the advantages of it is following and beneficial effect:
1. the utility model provides a pair of combined type backlight unit of ultra-thin pure flat formula, backlight unit is from last to including straight following formula backlight portion and the income formula backlight portion of inclining down, and straight following formula backlight portion and the income formula backlight portion of inclining combine one set of backlight unit of sharing mutually, can make display complete machine thickness only 10-15mm, than prior art thickness greatly reduced.
2. The utility model provides a pair of combined type backlight unit of ultra-thin pure flat formula, the long limit of backplate is connected with the plastics dorsal scale and is formed the cavity that is used for holding mainboard, drive power supply board and circuit line, the outside of the metal backplate that the outside and straight following formula backlight unit of plastics dorsal scale correspond flushes, has realized backlight unit's pure flattening, ultra-thinization and beautifully change.
3. The utility model provides a pair of combined type backlight unit of ultra-thin pure flat formula, the design of the straight following formula backlight unit in metal backplate cooperation upper end and lower extreme side income formula backlight unit, backplate minor face, the long limit of backplate, backplate portion of bending and the one-time stamping forming of backplate horizontal part form metal backplate structure, have guaranteed the size precision of metal backplate on the one hand, and on the other hand makes metal backplate structural stability good.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art, and it is obvious that the following description is only one embodiment of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the metal back plate, the light guide plate, the optical diaphragm and the display screen of the present invention;
fig. 2 is a schematic structural view of an ultra-thin flat composite backlight module according to the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 2;
fig. 4 is a schematic structural diagram of the reflector of the present invention.
1-metal back plate, 2-light guide plate, 3-optical film, 4-display screen, 5-direct type LED light bar, 6-support column, 7-lateral type LED light bar, 8-heat dissipation aluminum substrate, 9-plastic back shell, 10-main board, 11-driving power supply board, 12-reflector plate, 13-rubber frame, 101-back plate short edge, 102-back plate long edge, 103-back plate bending part, 104-back plate horizontal part, 301-diffuser plate, 302-BEF, 303-DBEF, 1201-column hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained without creative work by the ordinary skilled person in the art all belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
Example 1:
referring to fig. 1-3, an ultra-thin flat composite backlight module includes a direct type backlight portion and an edge type backlight portion from top to bottom, the backlight module sequentially includes a metal back plate 1, a light guide plate 2, an optical film 3 and a display screen 4 from back to front, the metal back plate 1 corresponding to the edge type backlight portion includes a back plate bending portion 103 and a back plate horizontal portion 104, the back plate bending portion 103 and the back plate horizontal portion 104 are arranged at an inclined angle, the direct type backlight portion includes a direct type LED light bar 5, and the direct type LED light bar 5 is arranged at an inner side of the metal back plate 1 corresponding to the direct type backlight portion and correspondingly arranged at a rear portion of the light guide plate 2; the shape of the metal back plate 1 corresponding to the side-in type backlight part is an L shape formed by a back plate short side 101 and a back plate long side 102, the back plate short side 101 is perpendicular to the back plate long side 102, the side-in type backlight part comprises a side-in type LED light bar 7 and a heat dissipation aluminum substrate 8, the heat dissipation aluminum substrate 8 is fixedly connected to the back plate short side 101 and the back plate long side 102, the side-in type LED light bar 7 is adhered to the bottom of the inner side of the heat dissipation aluminum substrate 8 positioned on the back plate short side 101 and correspondingly arranged on the side portion of the light guide plate 2, specifically, firstly, the back side of the side-in type LED light bar 7 is adhered to the bottom of the inner side of the heat dissipation aluminum substrate 8 by a high-viscosity heat insulation adhesive, and; the long side 102 of the back plate is connected with the plastic back shell 9 to form a cavity for accommodating the main board 10, the driving power board 11 and the circuit line, the main board 10, the driving power board 11 and the circuit line are arranged on the back of the long side 102 of the back plate, and the outer side of the plastic back shell 9 is flush with the outer side of the metal back plate 1 corresponding to the direct type backlight part. Specifically, the thickness of the plastic back shell 9 is determined according to the OD value of the structure of the direct-type backlight part at the upper end of the plastic back shell 9, and the plastic back shell 9 is arranged to realize the flattening of the overall composite backlight module.
Preferably, the metal backboard 1 structure is formed by one-time press forming of the backboard short side 101, the backboard long side 102, the backboard bending part 103 and the backboard horizontal part 104.
Preferably, the direct type backlight part further comprises support columns 6, the support columns 6 are adhered to the inner side of the back plate horizontal part 104, and the support columns 6 and the direct type LED light bars 5 are arranged alternately at even intervals. The number, specification and arrangement direction of the support columns 6 and the direct type LED lamp strips 5 are quantitatively set according to design requirements, and the support columns 6 and the direct type LED lamp strips 5 are directly adhered to the inner surface of the metal back plate 1 through high-viscosity double-sided adhesive tape.
Preferably, the direct type backlight part and the side type backlight part have a front projection area ratio of 8: 2-7: 3. The structure of the metal back plate 1 is customized according to the front projection area proportion of the direct type backlight part and the side type backlight part, iron, aluminum or other materials with strong rigidity are selected as main materials, and the thickness is about 1-3 mm. The back plate bending portion 103 and the back plate horizontal portion 104 are disposed at an inclined angle, and an angle of 40-60 ° is processed at the structure of the metal back plate 1 at the junction position of the direct type backlight portion and the lateral type backlight portion, that is, an extension line of the back plate bending portion 103 and the back plate horizontal portion 104 forms an angle of 40-60 °, specifically based on the optical and structural design of those skilled in the art.
Preferably, the light guide plate 2 corresponding to the direct type backlight unit is coated with an organic material for providing the diffusion plate with an atomizing function. The light guide plate 2 may be made of MS, PMMA, PS, or the like. According to the different front projection area ratios of the direct type backlight part and the side type backlight part, the processing modes of the light guide plate 2 are different, the upper end of the light guide plate 2 is processed to have the function of a diffusion plate to be matched with the direct type backlight part, the upper end of the light guide plate 2 is processed as follows, a specific organic material is used, for example, an organic silicon light diffusion agent is matched with a resin carrier, and the organic silicon light diffusion agent with the proportion of 0.3-1% is added into the resin carrier according to the different requirements of light transmittance, so that the light guide plate has the function of atomizing the diffusion plate; the lower end of the light guide plate 2 retains the function of converting the point light source into the surface light source by the light guide plate 2 and is matched with the side-in type backlight part.
Referring to fig. 4, preferably, the backlight module further includes a reflective sheet 12, and the reflective sheet 12 is disposed on the inner side of the metal back plate 1. The base material of the reflector plate 12 is made of PET material, and the thickness is about 0.2 mm. The lower end of the metal back plate 1 is attached to the inner surface of the metal back plate 1 corresponding to the side-in type backlight part by adopting a flat crease-free hollow-out reflector plate 12, the upper end of the metal back plate 1 is attached to the inner surface of the metal back plate 1 corresponding to the direct type backlight part by adopting the reflector plate 12 with peripheral creases and column holes 1201 according to the structural design of the direct type backlight part, and the reflector plate 12 penetrates through the column holes 1201 and covers the base of the support column 6.
Preferably, the optical film 3 comprises a diffusion sheet 301, a BEF302 and a DBEF303 arranged in sequence from back to front.
Preferably, a rubber frame 13 is disposed around the backlight module to tightly fit the reflective sheet 12, the light guide plate 2, the diffusion sheet 301, the BEF302, and the DBEF 303. The setting of gluing frame 13 avoids the inside rocking of metal backplate 1 cavity.
Example 2:
an ultra-thin flat display includes the ultra-thin flat composite backlight module described in embodiment 1.
Example 3:
an ultra-thin flat-type television comprises the ultra-thin flat-type composite backlight module described in embodiment 1.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The ultrathin flat combined backlight module is characterized by comprising a direct type backlight part and an side type backlight part from top to bottom, wherein the backlight module sequentially comprises a metal back plate (1), a light guide plate (2), an optical film (3) and a display screen (4) from back to front, the metal back plate (1) corresponding to the side type backlight part comprises a back plate bending part (103) and a back plate horizontal part (104), the back plate bending part (103) and the back plate horizontal part (104) are arranged in an inclined angle mode, the direct type backlight part comprises a direct type LED lamp strip (5), and the direct type LED lamp strip (5) is arranged on the inner side of the metal back plate (1) corresponding to the direct type backlight part and correspondingly arranged on the rear part of the light guide plate (2); the shape of the metal backboard (1) corresponding to the side-in type backlight part is an L shape formed by a backboard short side (101) and a backboard long side (102), the backboard short side (101) is perpendicular to the backboard long side (102), the side-in type backlight part comprises a side-in type LED lamp bar (7) and a heat dissipation aluminum substrate (8), the heat dissipation aluminum substrate (8) is fixedly connected to the backboard short side (101) and the backboard long side (102), the side-in type LED lamp bar (7) is bonded at the bottom of the inner side of the heat dissipation aluminum substrate (8) positioned at the backboard short side (101) and correspondingly arranged at the side part of the light guide plate (2), the backboard long side (102) is connected with a plastic back shell (9) to form a cavity for accommodating a mainboard (10), a driving power board (11) and circuit lines, and the mainboard (10), the driving power board (11) and the circuit lines are arranged on the back of, the outer side of the plastic back shell (9) is flush with the outer side of the metal back plate (1) corresponding to the direct type backlight part.
2. The ultra-thin flat composite backlight module according to claim 1, wherein the back plate short side (101), the back plate long side (102), the back plate bending portion (103) and the back plate horizontal portion (104) are formed into the metal back plate (1) structure by one-step press forming.
3. The ultra-thin flat composite backlight module according to claim 2, wherein the direct-type backlight portion further comprises supporting pillars (6), the supporting pillars (6) are adhered to the inner side of the horizontal portion (104) of the back plate, and the supporting pillars (6) and the direct-type LED light bars (5) are alternately arranged at regular intervals.
4. The ultra-thin flat composite backlight module according to claim 2, wherein a front projection area ratio of the direct type backlight portion to the side type backlight portion is 8:2 to 7: 3.
5. The ultra-thin flat composite backlight module according to claim 2, wherein the light guide plate (2) corresponding to the direct-type backlight portion is coated with an organic material for providing the diffusion plate with an atomizing function.
6. The ultra-thin flat composite backlight module according to claim 2, further comprising a reflective sheet (12), wherein the reflective sheet (12) is disposed on an inner side of the metal back plate (1).
7. The ultra-thin flat composite backlight module as claimed in claim 6, wherein the optical film (3) comprises a diffuser (301), a BEF (302) and a DBEF (303) sequentially arranged from back to front.
8. The ultra-thin flat composite backlight module according to claim 7, wherein the periphery of the backlight module is provided with a rubber frame (13) for tightly fitting the reflector plate (12), the light guide plate (2), the diffuser plate (301), the BEF (302) and the DBEF (303).
9. An ultra-thin flat panel display, comprising the ultra-thin flat panel composite backlight module according to any one of claims 1 to 8.
10. An ultra-thin flat-screen television, comprising the ultra-thin flat-screen composite backlight module according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021866254.9U CN212846268U (en) | 2020-08-31 | 2020-08-31 | Ultrathin flat combined backlight module, display and television |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021866254.9U CN212846268U (en) | 2020-08-31 | 2020-08-31 | Ultrathin flat combined backlight module, display and television |
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| CN212846268U true CN212846268U (en) | 2021-03-30 |
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| CN202021866254.9U Active CN212846268U (en) | 2020-08-31 | 2020-08-31 | Ultrathin flat combined backlight module, display and television |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442216A (en) * | 2022-01-29 | 2022-05-06 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
| CN115016181A (en) * | 2022-07-13 | 2022-09-06 | 成都康佳电子有限公司 | Mini LED lamp backlight module and display |
-
2020
- 2020-08-31 CN CN202021866254.9U patent/CN212846268U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114442216A (en) * | 2022-01-29 | 2022-05-06 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
| WO2023143536A1 (en) * | 2022-01-29 | 2023-08-03 | 深圳创维－Rgb电子有限公司 | Backlight module and display apparatus |
| CN114442216B (en) * | 2022-01-29 | 2024-09-17 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
| CN115016181A (en) * | 2022-07-13 | 2022-09-06 | 成都康佳电子有限公司 | Mini LED lamp backlight module and display |
| CN115016181B (en) * | 2022-07-13 | 2024-04-30 | 成都康佳电子有限公司 | Mini Led lamp backlight module and display |
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