CN212694219U - Mini-LED backlight module and display device - Google Patents
Mini-LED backlight module and display device Download PDFInfo
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- CN212694219U CN212694219U CN202021723895.9U CN202021723895U CN212694219U CN 212694219 U CN212694219 U CN 212694219U CN 202021723895 U CN202021723895 U CN 202021723895U CN 212694219 U CN212694219 U CN 212694219U
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Abstract
The utility model discloses a Mini-LED backlight module, which comprises a back plate and a lamp plate laid on the back plate, wherein the lamp plate comprises a plurality of lamp plate monomers which are arranged in a butt joint manner, and a reflector plate is laid on the lamp plate; the top of reflector plate is provided with the diffuser plate, just the diffuser plate lower surface corresponds adjacent two the free concatenation department of lamp plate is provided with the fluorescent material area. Use the utility model provides a Mini-LED backlight unit increases fluorescent material with lamp plate concatenation department top diffuser plate lower surface, carries out optical compensation to the dark band that concatenation department caused, makes concatenation department top region and normal lamp plate top optics transition more natural, alleviates the dark band to the influence of optical quality in a poor light, has effectively improved optical quality. The invention also discloses a display device with the Mini-LED backlight module, and the display device also has the technical effects.
Description
Technical Field
The utility model relates to a liquid crystal display equipment technical field, more specifically say, relate to a Mini-LED backlight unit and display device.
Background
With the emergence of liquid crystal display equipment carrying Mini LED backlight, the development of a Mini-LED backlight module becomes a new focus of liquid crystal display equipment manufacturers, and the innovation point of the technology is mainly that regional dimming can be realized, so that million-level high contrast is realized, and the energy consumption of a television is greatly reduced; the maximum brightness can reach 1000nit, and simultaneously, the high color gamut is realized by matching with a quantum dot technology.
At present, a lamp panel is installed by additionally arranging a positioning hole above a back plate of a mini-LED backlight module, a reflector plate is attached to the upper side of the lamp panel, and then a diffusion plate, other quantum dot films, a prism film and the like are sequentially arranged.
The number of LEDs in the Mini-LED backlight area reaches thousands or even tens of thousands, because the Mini-LED backlight area is limited by a proofing machine, Mini-LED products are small-size lamp panels, then the small-size lamp panels are spliced into large-size backlight, and gaps of several millimeters are formed between the lamp panels. And dark bands are generated at the joint positions of the mini-LED television due to warping, unevenness and the like of the joint positions.
To sum up, how to effectively solve the problem that the display effect is affected by the optical dark band generated at the splicing seam of the lamp panel by the mini-LED backlight module is a problem to be solved by the technicians in the field at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the first objective of the present invention is to provide a Mini-LED backlight module, the structural design of which can effectively solve the problem that the Mini-LED backlight module generates optical dark bands at the seams of the lamp panel to affect the display effect, and the second objective of the present invention is to provide a display device including the Mini-LED backlight module.
In order to achieve the first object, the present invention provides the following technical solutions:
a Mini-LED backlight module comprises a back plate and a lamp panel laid on the back plate, wherein the lamp panel comprises a plurality of lamp panel monomers which are arranged in a butt joint mode, and a reflector plate is laid on the lamp panel; the top of reflector plate is provided with the diffuser plate, just the diffuser plate lower surface corresponds adjacent two the free concatenation department of lamp plate is provided with the fluorescent material area.
Preferably, in the Mini-LED backlight module, the fluorescent material strip is formed by fluorescent material dots distributed in a dispersed manner, and the distribution density of the fluorescent material dots decreases from a position close to a center line of a spliced position to a position far away from the center line.
Preferably, in the Mini-LED backlight module, the width of the fluorescent material strip is greater than the width of the splicing seam at the splicing position.
Preferably, in the Mini-LED backlight module, the width of the fluorescent material strip is 3 to 5 times the width of the seam, and the central line of the fluorescent material strip is collinear with the central line of the seam.
Preferably, in the Mini-LED backlight module, the fluorescent material is coated or wet-printed on the diffusion plate.
Preferably, in the Mini-LED backlight module, the reflector plate is laid on the lamp plate, and the reflector plate is folded at the joint of two adjacent lamp plate monomers.
Preferably, in the Mini-LED backlight module, the reflector plate is formed by horizontally folding up the side of the joint of the two adjacent lamp panel monomers to the other side to form a first inclined plane, then folding down the first inclined plane to form a second inclined plane, and then folding the second inclined plane to the horizontal, wherein the joint is located below the first inclined plane and the second inclined plane.
The utility model provides a Mini-LED backlight unit includes backplate, lamp plate, reflector plate and diffuser plate. The lamp panel is laid on the back plate and comprises a plurality of lamp panel monomers which are arranged in a butt joint mode; the reflector plate is laid on the lamp plate, the diffuser plate is arranged above the reflector plate, and the lower surface of the diffuser plate is provided with a fluorescent material strip corresponding to the splicing position of the two adjacent lamp plate monomers.
Use the utility model provides a Mini-LED backlight unit increases fluorescent material with lamp plate concatenation department top diffuser plate lower surface, carries out optical compensation to the dark band that concatenation department caused, makes concatenation department top region and normal lamp plate top optics transition more natural, alleviates the dark band to the influence of optical quality in a poor light, has effectively improved optical quality.
In order to achieve the second objective, the present invention further provides a display device, which includes any kind of Mini-LED backlight module. Since the Mini-LED backlight module has the above technical effects, the display device having the Mini-LED backlight module should also have corresponding technical effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective structural view of a Mini-LED backlight module according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure of fig. 1.
The drawings are numbered as follows:
diffuser plate 1, concatenation department 2, reflector plate 3, backplate 4, lamp plate 5, fluorescent material point 6.
Detailed Description
The embodiment of the utility model discloses Mini-LED backlight module to avoid the production of lamp plate piece department optics dark zone.
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 embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, fig. 1 is a schematic perspective view of a Mini-LED backlight module according to an embodiment of the present invention; fig. 2 is a schematic cross-sectional structure of fig. 1.
In one embodiment, the Mini-LED backlight module provided by the present invention comprises a back plate 4, a lamp panel 5, a reflector plate 3 and a diffuser plate 1.
Wherein, backplate 4 is located the bottom for support installation lamp plate 5. The specific structure of the back plate 4 can refer to the back plate 4 of a common Mini-LED backlight module, and is not described herein again.
The lamp panel 5 is laid on the backboard 4, and the lamp panel 5 comprises a plurality of lamp panel monomers which are butted and arranged. The number of LEDs in the Mini-LED backlight area reaches thousands or even tens of thousands, and because the Mini-LED backlight area is limited by a proofing machine, Mini-LED products are all small-size lamp panel monomers, and then the small-size lamp panel monomers are spliced into the large-size lamp panel 5. The number of the specific lamp panel monomers can be set according to needs, and the specific limitation is not made here. And the plurality of blocks comprises two blocks or more than two blocks. The single splicing mode of polylith lamp plate can be single row multiseriate according to the size requirement and splice, also can be multirow multiseriate concatenation. The laying mode of specific lamp plate 5 can refer to the prior art, and the description is omitted here.
The reflector plate 3 is laid on the lamp panel 5 and can be adhered to the lamp panel 5 through gum and the like, and the reflector plate 3 is correspondingly provided with avoiding holes corresponding to the positions of the lamp beads on the lamp panel 5. The reflective sheet 3 may be a whole structure or a spliced structure as required.
The diffusion plate 1 is arranged above the reflector plate 3, and the lower surface of the diffusion plate 1 is provided with a fluorescent material belt corresponding to the splicing part 2 of the two adjacent lamp panel monomers. Through the setting of diffuser plate 1 for the better diffusion of light that the lamp pearl sent, it is more even to distribute. If necessary, a holder fixedly connected to the back plate 4 may be provided, and the diffuser plate 1 may be fixedly mounted on the holder. The lower surface of the diffusion plate 1 is provided with a fluorescent material strip corresponding to the splicing part 2 of the two adjacent lamp panel monomers. The fluorescent material strip and the strip-shaped structure formed by the fluorescent material may be made of a fluorescent material that is conventional in the art, and is not limited herein.
Use the utility model provides a Mini-LED backlight unit increases fluorescent material with 1 lower surface of the 2 tops diffuser plates of 5 concatenation departments of lamp plate, carries out optical compensation to the dark band that 2 concatenation departments caused, makes 2 top regions of concatenation departments and the optics transition more natural above normal lamp plate 5, alleviates the dark band to the influence of optical quality in a poor light, has effectively improved optical quality.
Specifically, the fluorescent material strip is formed by fluorescent material dots 6 distributed in a dispersed manner, and the distribution density of the fluorescent material dots 6 is reduced from a position close to the center line of the splice 2 to a position far away from the center line. That is, the lower surface of the diffusion plate 1 is provided with fluorescent material dots 6 distributed in dispersed dots corresponding to the splicing part 2 of the lamp panel monomers, and the fluorescent material dots 6 form the fluorescent material strip. Because the dark band that concatenation department 2 caused is more obvious in 2 central lines positions in concatenation department, the distribution density that so set up fluorescent material point 6 reduces to the position of keeping away from the central line by the position that is close to 2 central lines in concatenation department to the light filling effect to 2 middles in concatenation department is strong, and the light filling effect at edge is weak, makes 2 top regions in concatenation department and the optics transition in normal lamp plate 5 top more natural, has further improved optical quality.
Specifically, the width of the fluorescent material strip is larger than the width of the splicing seam of the splicing part 2. If the width of the abutted seam between the two adjacent lamp panel monomers is 10mm, the width of the fluorescent material strip is larger than 10mm, and therefore the light supplement effect is guaranteed. Further, the width of the fluorescent material strip is 3-5 times of the width of the seam, and the center line of the fluorescent material strip is collinear with the center line of the seam. Taking the seam as 10mm wide as an example, the fluorescent material strips respectively extend towards two sides by taking the center line of the seam as a center line to form the fluorescent material strips with the width of 30-50 mm. So set up, can guarantee that 2 top regions of concatenation department and the natural transition of 5 top optics of normal lamp plate. In the case where the fluorescent material strip is formed of fluorescent material dots 6 distributed in a dispersed pattern, the fluorescent material dots 6 are distributed more intensively as they approach the patchwork.
In the above embodiments, the fluorescent material tape is coated or wet-printed on the diffusion plate 1. By coating or wet printing, reliable molding of the fluorescent material on the diffusion plate 1 is ensured. For the specific coating or wet printing process and operation, reference is made to the prior art, which is not described herein again.
On the basis of each embodiment, the reflector plate 3 is folded at the splicing part 2 of two adjacent lamp panel monomers. Reflector plate 3 is in two adjacent lamp plate monomer's concatenation department 2, also is that piece department adopts beta structure, and concrete folding mode can set up as required. It should be noted that, the non-planar structure that the folded structure formed through buckling promptly, and then when folding department both sides and 3 parts of reflector plate of different lamp plate monomer fixed connection took place relative displacement, the corresponding motion of folded part was in order to offset this displacement, avoided causing the dragging to 3 parts of reflector plate with different lamp plate monomer fixed connection.
Specifically, reflector plate 3 is by the level earlier upwards roll over form first inclined plane, roll over downwards again and form the second inclined plane, roll over to the level again by a lateral opposite side of two adjacent lamp plate monomer's concatenation department 2, and concatenation department 2 is located first inclined plane and second inclined plane below. Through the folding, a protruding structure is formed to adapt to the deformation of the abutted seam.
Further, the first inclined surface and the second inclined surface are symmetrical with respect to a line connecting the first inclined surface and the second inclined surface. Adopt the symmetry to set up for it is more firm between first inclined plane and the second inclined plane. According to the requirement, the first inclined surface and the second inclined surface are not limited to be symmetrically arranged, and the length of the first inclined surface can be larger or smaller than that of the second inclined surface.
Specifically, the splice 2 is arranged corresponding to the connecting line of the first inclined plane and the second inclined plane. I.e. the first and second inclined surfaces are symmetrical with respect to the splice 2, so that the folded structure can better accommodate the deformation of the splice 2. According to the needs, the splicing part 2 can also be positioned on the left or right of the connecting line, and the splicing part can be correspondingly arranged according to the specific situation.
To first inclined plane and second inclined plane, it is concrete, first inclined plane and lamp plate 5's contained angle scope is 10 ~ 60, and the contained angle scope of second inclined plane and lamp plate 5 is 10 ~ 60.
Based on the Mini-LED backlight module that provides in the above-mentioned embodiment, the utility model also provides a display device, this display device includes arbitrary Mini-LED backlight module in the above-mentioned embodiment. Because the display device adopts the Mini-LED backlight module in the above embodiment, please refer to the above embodiment for the beneficial effects of the display device. Specifically, the display device may be a television, a computer display screen, a wall display large screen, or the like.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A Mini-LED backlight module comprises a back plate (4) and a lamp panel (5) laid on the back plate (4), wherein the lamp panel (5) comprises a plurality of lamp panel monomers which are arranged in a butt joint mode, and a reflector plate (3) is laid on the lamp panel (5); the LED lamp is characterized in that a diffusion plate (1) is arranged above the reflector plate (3), and the lower surface of the diffusion plate (1) corresponds to two adjacent lamp panel monomers, and a fluorescent material strip is arranged at the splicing part (2) of the lamp panel monomers.
2. The Mini-LED backlight module according to claim 1, wherein the fluorescent material strips are formed by dots (6) of fluorescent material distributed in dispersed dots, and the distribution density of the dots (6) of fluorescent material decreases from a position close to the center line of the splice (2) to a position far away from the center line.
3. The Mini-LED backlight module according to claim 1, wherein the width of the fluorescent material strips is larger than the width of the seams at the splicing part (2).
4. The Mini-LED backlight module according to claim 3, wherein the width of the fluorescent material strips is 3-5 times the width of the seam, and the central lines of the fluorescent material strips and the seam are collinear.
5. The Mini-LED backlight module according to any of the claims 1 to 4, wherein the strips of fluorescent material are coated or wet-printed onto the diffuser plate (1).
6. The Mini-LED backlight module set according to claim 5, wherein the lamp panel (5) is laid with a reflector plate (3), and the reflector plate (3) is folded at the joint (2) of two adjacent lamp panel monomers.
7. The Mini-LED backlight module according to claim 6, wherein the reflector plate (3) is formed by horizontally folding the side of the joint (2) of two adjacent lamp panel monomers upwards to form a first inclined plane, then folding the side of the joint to form a second inclined plane and then folding the side of the joint to the horizontal, and the joint (2) is located below the first inclined plane and the second inclined plane.
8. A display device comprising the Mini-LED backlight module of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021723895.9U CN212694219U (en) | 2020-08-18 | 2020-08-18 | Mini-LED backlight module and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021723895.9U CN212694219U (en) | 2020-08-18 | 2020-08-18 | Mini-LED backlight module and display device |
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| CN212694219U true CN212694219U (en) | 2021-03-12 |
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| CN202021723895.9U Active CN212694219U (en) | 2020-08-18 | 2020-08-18 | Mini-LED backlight module and display device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113327515A (en) * | 2021-05-26 | 2021-08-31 | Tcl华星光电技术有限公司 | Mini-LED backlight module and display device |
| CN113721386A (en) * | 2021-08-18 | 2021-11-30 | 安徽芯瑞达科技股份有限公司 | Backlight module for increasing Mini LED light-emitting angle and manufacturing method thereof |
| CN114822273A (en) * | 2022-05-07 | 2022-07-29 | Tcl华星光电技术有限公司 | Splicing panel |
| CN114942546A (en) * | 2022-05-31 | 2022-08-26 | 深圳市宏普欣电子科技有限公司 | Mini LED backlight module with large light-emitting angle |
| CN115047674A (en) * | 2022-06-14 | 2022-09-13 | 惠科股份有限公司 | Backlight module and display device |
| WO2022267110A1 (en) * | 2021-06-21 | 2022-12-29 | Tcl华星光电技术有限公司 | Backlight module and display apparatus |
-
2020
- 2020-08-18 CN CN202021723895.9U patent/CN212694219U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113327515A (en) * | 2021-05-26 | 2021-08-31 | Tcl华星光电技术有限公司 | Mini-LED backlight module and display device |
| WO2022267110A1 (en) * | 2021-06-21 | 2022-12-29 | Tcl华星光电技术有限公司 | Backlight module and display apparatus |
| US11977253B2 (en) | 2021-06-21 | 2024-05-07 | Tcl China Star Optoelectronics Technology Co., Ltd. | Backlight module including overlapped reflective sheets and display device including the same |
| CN113721386A (en) * | 2021-08-18 | 2021-11-30 | 安徽芯瑞达科技股份有限公司 | Backlight module for increasing Mini LED light-emitting angle and manufacturing method thereof |
| CN114822273A (en) * | 2022-05-07 | 2022-07-29 | Tcl华星光电技术有限公司 | Splicing panel |
| CN114822273B (en) * | 2022-05-07 | 2022-12-23 | Tcl华星光电技术有限公司 | Splicing panel |
| CN114942546A (en) * | 2022-05-31 | 2022-08-26 | 深圳市宏普欣电子科技有限公司 | Mini LED backlight module with large light-emitting angle |
| CN115047674A (en) * | 2022-06-14 | 2022-09-13 | 惠科股份有限公司 | Backlight module and display device |
| US11880105B2 (en) | 2022-06-14 | 2024-01-23 | HKC Corporation Limited | Backlight module and display apparatus |
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