CN219872748U - Rubber frame structure, mini LED backlight source and display device - Google Patents
Rubber frame structure, mini LED backlight source and display device Download PDFInfo
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- CN219872748U CN219872748U CN202320641077.1U CN202320641077U CN219872748U CN 219872748 U CN219872748 U CN 219872748U CN 202320641077 U CN202320641077 U CN 202320641077U CN 219872748 U CN219872748 U CN 219872748U
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- 239000012528 membrane Substances 0.000 claims description 12
- 238000009792 diffusion process Methods 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 15
- 210000002421 cell wall Anatomy 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000010304 firing Methods 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of liquid crystal modules, and particularly provides a rubber frame structure, a Mini LED backlight source and display equipment, wherein the rubber frame structure comprises a frame which is arranged in a frame shape; the bottom plate is connected to the inside of the frame; the light source holes are formed in the bottoms of the light reflecting grooves. Through set up the bottom plate in the frame inside to offer a plurality of reflection of light grooves on the bottom plate, and offer the light source hole on the tank bottom in reflection of light groove, for the gluey frame structure of current only having the frame, can install the lamp plate in the lower terminal surface department of bottom plate, and with light source such as LED chip certainly the light source hole stretches into in the reflection of light groove, and then reflect the light of light source transmission department by the cell wall in reflection of light groove, and then limit the firing angle of light source, and then avoid appearing light crosstalk between the different light sources, avoid appearing the halation effect, promote image quality display effect.
Description
Technical Field
The utility model relates to the technical field of Mini LED backlight sources, in particular to a rubber frame structure, a Mini LED backlight source and display equipment.
Background
The Mini LED backlight is a direct type backlight obtained by arranging a plurality of red, green and blue three-color light LED chips in a matrix manner, and has the excellent effects of higher brightness, better luminous efficiency and low power consumption, however, at present, the LED chips of the Mini LED emit light in multiple directions when emitting light, so that different LED chips, especially LED chips in adjacent areas, have light crosstalk, and the halation effect appears when local dimming, so that the image quality display effect is seriously affected.
Accordingly, the prior art has drawbacks and disadvantages, and needs to be further improved and developed.
Disclosure of Invention
In view of the defects of the prior art, the utility model aims to provide a rubber frame structure, a Mini LED backlight source and display equipment, and aims to solve the problem of light crosstalk of the Mini LED backlight source in the prior art.
The technical scheme adopted for solving the technical problems is as follows: a glue frame structure for a Mini LED backlight, comprising:
the frame is arranged in a frame shape;
the bottom plate is connected to the inside of the frame;
the light source holes are formed in the bottoms of the light reflecting grooves.
Optionally, the bottom area of the reflective groove is smaller than the notch area of the reflective groove.
Optionally, the reflective trough is shaped as a pyramid or cone.
Optionally, the interval between adjacent reflecting grooves is 6-25mm;
the width of the notch of the reflecting groove is 20-40mm;
the bottom width of the reflective groove is 10-25mm;
the opening angle of the notch of the reflecting groove is 45-120 degrees;
the extension length of the side groove wall of the reflective groove is 5-25mm;
the distance between the notch of the reflective groove and the groove bottom is 4-18mm.
Optionally, the bottom plate further includes:
the reflecting grooves are formed in the upper end face of the plate body;
the lamp panel sink is arranged at the lower end face of the panel body, and the light source hole is communicated with the light reflecting groove and the lamp panel sink.
The utility model solves the technical problem by adopting another technical scheme as follows: the Mini LED backlight source comprises a rubber frame structure, wherein the rubber frame structure comprises a frame, a bottom plate and a plurality of reflecting grooves, the frame is arranged in a frame shape, and the bottom plate is connected to the inside of the frame; the light reflecting grooves are arranged on the bottom plate, and light source holes are formed in the bottoms of the light reflecting grooves.
Optionally, the Mini LED backlight further includes an LED lamp panel, where the LED lamp panel includes a substrate, and a plurality of LED chips disposed on the substrate;
the bottom plate comprises a plate body and lamp panel sinking grooves, a plurality of light reflecting grooves are formed in the upper end face of the plate body, and the bottom area of each light reflecting groove is smaller than the notch area of each light reflecting groove; the light source hole is communicated with the reflecting groove and the light plate sinking groove;
the LED chips penetrate through the light source holes in a one-to-one correspondence mode and extend into the light reflecting grooves.
Optionally, the Mini LED backlight further includes a diffusion plate, a first membrane, a light splitting membrane, a lower light enhancement sheet, an upper light enhancement sheet and a light shielding glue, which are sequentially arranged on the frame from bottom to top, wherein the first membrane is set to be a QD membrane or a fluorescent membrane, and the light shielding glue is set at an edge of the upper light enhancement sheet.
Optionally, the interval between adjacent light reflecting grooves is 6-25mm, the width of the notch of the light reflecting groove is 20-40mm, the width of the bottom of the light reflecting groove is 10-25mm, the opening angle of the notch of the light reflecting groove is 45-120 degrees, and the extension length of the side groove wall of the light reflecting groove is 5-25mm;
the distance between the highest point of the LED chip and the upper end face of the plate body is 2-8mm;
the distance between the upper end face of the plate body and the lower end face of the diffusion plate is 0.5-2.5mm.
The utility model solves the technical problem by adopting another technical scheme as follows: a display device comprising a Mini LED backlight as described above.
The beneficial effects are that: compared with the existing rubber frame structure with only frames, the lamp panel can be installed at the lower end face of the bottom plate, a light source such as an LED chip extends into the reflecting groove from the light source hole, and then the groove wall of the reflecting groove reflects light rays at the light source emitting position, so that the emitting angle of the light source is limited, light ray crosstalk among different light sources is avoided, halation effect is avoided, and image quality display effect is improved.
Drawings
FIG. 1 is a schematic top view of a rubber frame structure provided in the present utility model;
FIG. 2 is a schematic top view of a modified frame structure of the present utility model;
FIG. 3 is a schematic bottom view of the frame structure provided in the present utility model;
FIG. 4 is a schematic cross-sectional view of a rubber frame structure provided in the present utility model;
FIG. 5 is a schematic cross-sectional view of another view of the frame structure provided in the present utility model;
FIG. 6 is a schematic cross-sectional view of a Mini LED backlight provided in the present utility model;
fig. 7 is a schematic cross-sectional view of the light-emitting effect of the LED lamp panel of the Mini LED backlight provided in the present utility model;
reference numerals illustrate:
10. a rubber frame structure; 11. a frame; 12. a bottom plate; 13. a reflective trough; 14. a light source hole; 121. a plate body; 122. a lamp panel sink; 1. mini LED backlight source; 20. an LED lamp panel; 30. a diffusion plate; 50. a first membrane; 60. a light-splitting membrane; 70. a lower polishing sheet; 80. a polishing piece is arranged; 90. shading adhesive; 21. a substrate; 22. an LED chip.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more clear and clear, the present utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 3 in combination, a frame structure 10 is provided in a first embodiment of the present utility model, the frame structure 10 is used for a Mini LED backlight 1, and the frame structure 10 includes: the light reflecting device comprises a frame 11, a bottom plate 12 and a plurality of light reflecting grooves 13; the frame 11 is arranged in a frame shape; the bottom plate 12 is connected to the inside of the frame 11, that is, the inner side surface of the frame 11 is connected with the bottom plate 12; the light reflecting grooves 13 are arranged on the bottom plate 12, and the light source holes 14 are arranged on the bottoms of the light reflecting grooves 13, so that the light reflecting grooves 13 can reflect light rays, and the light sources can enter the light reflecting grooves 13 through the light source holes 14.
Referring to fig. 4 and 5 in combination, it can be understood that, in the rubber frame structure 10, the bottom plate 12 is disposed inside the frame 11, the bottom plate 12 is provided with a plurality of light reflecting grooves 13, and the bottom of the light reflecting grooves 13 is provided with a light source hole 14, so that, compared with the conventional rubber frame structure 10 with only the frame 11, a lamp panel can be mounted on the lower end face of the bottom plate 12, and a light source such as an LED chip 22 extends into the light reflecting grooves 13 from the light source hole 14, so that the groove wall of the light reflecting grooves 13 reflects the light at the light source emitting position, thereby limiting the emitting angle of the light source, further avoiding light crosstalk between different light sources, avoiding halation effect, and improving the image quality display effect.
In some embodiments, the bottom area of the reflective groove 13 is smaller than the notch area of the reflective groove 13, so that the brightness of the Mini LED backlight 1 is prevented from being reduced while the light emitting angle of the light source is limited. Specifically, the reflective groove 13 is pyramidal or conical, and it should be noted that the bottom of the conical reflective groove 13 is circular and is not smaller than the outer diameter of the light source.
In some embodiments, the spacing L between adjacent light reflecting grooves 13 1 Is 6-25mm, in particular, the interval L between adjacent reflecting grooves 13 1 Is 19.5mm, and can thenThe distribution density of the light sources is adapted, and the light crosstalk between the light sources can be effectively avoided; the notch width L of the reflecting groove 13 2 Is 20-40mm, specifically, the notch width L of the reflecting groove 13 2 34.5mm, the groove bottom width L of the reflective groove 13 3 Is 10-25mm, specifically, the groove bottom width L of the reflective groove 13 3 The extension length L of the side groove wall of the reflective groove 13 is 22.5mm 4 Is 5-25mm, in particular, the extension length L of the side groove wall of the reflective groove 13 4 The opening angle alpha of the notch of the reflecting groove 13 is 45-120 DEG with 12.47mm, and the distance L between the notch of the reflecting groove 13 and the groove bottom is required to be stated 5 Is 4-18mm, in particular, the spacing L between the notch and the groove bottom of the reflecting groove 13 5 The display defect of uneven brightness display can be avoided when the display size is 12mm, so that the problem of light source cross wires can be guaranteed to be solved.
In some embodiments, the base plate 12 further comprises: a plate body 121 and a lamp plate sink 122; the reflecting grooves 13 are all arranged on the upper end face of the plate body 121; the light plate sink 122 is disposed at the lower end surface of the plate 121, and the light source hole 14 is communicated with the light reflecting groove 13 and the light plate sink 122. It can be seen that the light reflecting grooves 13 and the light panel sinking grooves 122 are respectively disposed on two opposite end surfaces of the plate 121 along the thickness direction, wherein the light source holes 14 and the light reflecting grooves 13 are used for accommodating light sources, the light reflecting grooves 13 are used for reflecting light rays to control the light emitting angle of the light sources so as to avoid light crosstalk, and the light panel sinking grooves 122 are used for accommodating the substrate 21 (such as an FPC board or a PCB board) of the light sources.
Referring to fig. 6 and fig. 7 in combination, a second embodiment of the present utility model provides a Mini LED backlight 1, where the Mini LED backlight 1 includes a frame structure 10 according to the first embodiment of the present utility model. It can be seen that, in the Mini LED backlight 1 provided in the present embodiment, by adopting the rubber frame structure 10 provided in the first embodiment of the present utility model, light crosstalk can be effectively avoided, and image quality display effect can be effectively improved.
Specifically, the rubber frame structure 10 comprises a frame 11, a bottom plate 12 and a plurality of reflective grooves 13, wherein the frame 11 is arranged in a frame shape,the bottom plate 12 is connected to the inside of the frame 11; the light reflecting grooves 13 are arranged on the bottom plate 12, and light source holes 14 are arranged on the bottoms of the light reflecting grooves 13; the bottom area of the reflective groove 13 is smaller than the notch area of the reflective groove 13; spacing L between adjacent light reflecting grooves 13 1 The notch width L of the reflecting groove 13 is 6-25mm 2 20-40mm, the groove bottom width L of the reflective groove 13 3 The opening angle alpha of the notch of the reflecting groove 13 is 45-120 DEG, the extension length L of the side groove wall of the reflecting groove 13 is 10-25mm 4 Is 5-25mm, the distance L between the notch of the reflective groove and the groove bottom 5 The bottom area of the reflective groove 13 is smaller than the notch area of the reflective groove 13, so that the brightness of the Mini LED backlight source 1 is prevented from being reduced while the light emitting angle of the light source is limited. Specifically, the reflective grooves 13 are formed in a pyramid shape or a cone shape; it should be noted that, the circular shape that the tank bottom of toper reflection of light groove 13 set up, just be not less than the external diameter of light source, and then can be through improving gluey frame structure 10, extend department bottom plate 12 in frame 11 inside set up a plurality of reflection of light grooves 13 on bottom plate 12 to set up light source hole 14 on the tank bottom of reflection of light groove 13, and then can be with the light source one-to-one word stretch out in the light source hole 14, get into reflection of light groove 13, and then by reflection of light groove 13 prevents light crosstalk.
In some embodiments, the Mini LED backlight 1 further includes an LED lamp panel 20, where the LED lamp panel 20 includes a substrate 21 and a plurality of LED chips 22, and the plurality of LED chips 22 are all disposed on the substrate 21; the bottom plate 12 comprises a plate body 121 and a lamp plate sinking groove 122, and a plurality of light reflecting grooves 13 are respectively formed in the upper end face of the plate body 121; the light plate sinking groove 122 is arranged at the lower end face of the plate body 121, and the light source hole 14 is communicated with the light reflecting groove 13 and the light plate sinking groove 122; wherein the substrate 21 is accommodated in the lamp plate sink 122, the LED chips 22 penetrate through the light source holes 14 in a one-to-one correspondence, and extend into the reflective groove 13, and the distance L between the highest point of the LED chips 22 and the upper end surface of the plate 121 7 Is 2-8mm, specifically, the distance L between the highest point of the LED chip 22 and the upper end face of the plate body 121 7 Is 4mm. It can be seen that the light sources are in one-to-one correspondence, and extend out of the light source holes 14 into the light reflecting grooves 13, so that the light reflecting grooves 13 prevent light crosstalk, and meanwhile, the problem of uneven display brightness is avoided.
In some embodiments, the Mini LED backlight 1 further includes a diffusion plate 30, a first film 50, a light splitting film 60, a lower brightness enhancement film 70, an upper brightness enhancement film 80 and a light shielding glue 90 sequentially disposed on the frame 11 from bottom to top, wherein the first film 50 is configured as a QD film or a fluorescent film, the light shielding glue 90 is disposed at an edge of the upper brightness enhancement film 80, and a distance L between an upper end surface of the plate 121 and a lower end surface of the diffusion plate 30 6 Is 0.5-2.5mm, specifically, the distance L between the upper end surface of the plate body 121 and the lower end surface of the diffusion plate 30 6 1.75mm, by controlling the distance between the upper end surface of the plate 121 and the lower end surface of the diffusion plate 30, that is, the distance between the notch of the reflective groove 13 and the diffusion plate 30, the problem of light crosstalk can be guaranteed and solved, and the problem of uneven display brightness can be avoided.
In a third embodiment of the present utility model, a display device is provided, which includes the Mini LED backlight 1 provided in the second embodiment of the present utility model. It can be understood that, in the display device provided in this embodiment, by adopting the Mini LED backlight 1 provided in the present utility model, it is further possible to avoid the occurrence of halation effect on the display screen of the display device due to crosstalk of the light source, and remarkably improve the image quality display effect.
In summary, the utility model provides a rubber frame structure, a Mini LED backlight source and a display device, wherein the rubber frame structure comprises: the frame is arranged in a frame shape; the bottom plate is connected to the inside of the frame; the light source holes are formed in the bottoms of the light reflecting grooves. The frame structure is through setting up the bottom plate in the frame inside to offer a plurality of reflection of light grooves on the bottom plate, and offer the light source hole on the tank bottom in reflection of light groove, for current only have the frame structure of gluing of frame, can install the lamp plate the lower terminal surface department of bottom plate, and with light source such as LED chip certainly the light source hole stretches into in the reflection of light groove, and then by reflection of light groove's cell wall pair light of light source emission department reflects, and then prescribes a limit to the emission angle of light source, and then avoid appearing light crosstalk between the different light sources, avoid appearing the halation effect, promote the image quality display effect.
It is to be understood that the utility model is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (10)
1. A frame structure is glued for Mini LED backlight, its characterized in that includes:
the frame is arranged in a frame shape;
the bottom plate is connected to the inside of the frame;
the light source holes are formed in the bottoms of the light reflecting grooves.
2. The frame structure of claim 1, wherein the reflective trough has a trough bottom area less than a trough mouth area of the reflective trough.
3. The frame structure of claim 2, wherein the reflective trough is shaped as a pyramid or cone.
4. The frame structure of claim 2, wherein,
the interval between adjacent reflecting grooves is 6-25mm;
the width of the notch of the reflecting groove is 20-40mm;
the bottom width of the reflective groove is 10-25mm;
the opening angle of the notch of the reflecting groove is 45-120 degrees;
the extension length of the side groove wall of the reflective groove is 5-25mm;
the distance between the notch of the reflective groove and the groove bottom is 4-18mm.
5. The frame structure of any one of claims 1-4, wherein the base plate further comprises:
the reflecting grooves are formed in the upper end face of the plate body;
the lamp panel sink is arranged at the lower end face of the panel body, and the light source hole is communicated with the light reflecting groove and the lamp panel sink.
6. The Mini LED backlight source is characterized by comprising a rubber frame structure, wherein the rubber frame structure comprises a frame, a bottom plate and a plurality of reflecting grooves, the frame is arranged in a frame shape, and the bottom plate is connected to the inside of the frame; the light reflecting grooves are arranged on the bottom plate, and light source holes are formed in the bottoms of the light reflecting grooves.
7. The Mini LED backlight of claim 6, wherein,
the Mini LED backlight source further comprises an LED lamp panel, wherein the LED lamp panel comprises a substrate and a plurality of LED chips arranged on the substrate;
the bottom plate comprises a plate body and lamp panel sinking grooves, a plurality of light reflecting grooves are formed in the upper end face of the plate body, and the bottom area of each light reflecting groove is smaller than the notch area of each light reflecting groove; the light source hole is communicated with the reflecting groove and the light plate sinking groove;
the LED chips penetrate through the light source holes in a one-to-one correspondence mode and extend into the light reflecting grooves.
8. The Mini LED backlight of claim 7, further comprising a diffuser plate, a first membrane, a light splitting membrane, a lower light enhancement sheet, an upper light enhancement sheet and a light blocking glue sequentially disposed on the frame from bottom to top, wherein the first membrane is configured as a QD membrane or a fluorescent membrane, and the light blocking glue is disposed at an edge of the upper light enhancement sheet.
9. The Mini LED backlight of claim 8, wherein,
the distance between adjacent light reflecting grooves is 6-25mm, the width of the groove opening of each light reflecting groove is 20-40mm, the width of the groove bottom of each light reflecting groove is 10-25mm, the opening angle of the groove opening of each light reflecting groove is 45-120 degrees, and the extension length of the side groove wall of each light reflecting groove is 5-25mm;
the distance between the highest point of the LED chip and the upper end face of the plate body is 2-8mm;
the distance between the upper end face of the plate body and the lower end face of the diffusion plate is 0.5-2.5mm.
10. A display device comprising a Mini LED backlight as claimed in any one of claims 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320641077.1U CN219872748U (en) | 2023-03-22 | 2023-03-22 | Rubber frame structure, mini LED backlight source and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320641077.1U CN219872748U (en) | 2023-03-22 | 2023-03-22 | Rubber frame structure, mini LED backlight source and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219872748U true CN219872748U (en) | 2023-10-20 |
Family
ID=88346620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320641077.1U Active CN219872748U (en) | 2023-03-22 | 2023-03-22 | Rubber frame structure, mini LED backlight source and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219872748U (en) |
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2023
- 2023-03-22 CN CN202320641077.1U patent/CN219872748U/en active Active
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