CN212905820U - Non-glue frame backlight module and display device with same - Google Patents
Non-glue frame backlight module and display device with same Download PDFInfo
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- CN212905820U CN212905820U CN202021638541.4U CN202021638541U CN212905820U CN 212905820 U CN212905820 U CN 212905820U CN 202021638541 U CN202021638541 U CN 202021638541U CN 212905820 U CN212905820 U CN 212905820U
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Abstract
The utility model relates to a no frame backlight unit and have its display device that glues, including the iron-clad, the iron-clad has the bottom plate and is located the peripheral curb plate of bottom plate, top-down stacks in the iron-clad is equipped with optics diaphragm, quantum dot membrane, light guide plate and reflector plate, the curb plate is equipped with towards the inboard internal surface of iron-clad and changes the light material layer, it is used for turning into the white light to change the blue light that the invalid limit of following the quantum dot membrane spills to change the light material layer. The utility model also discloses a display device, it includes foretell backlight unit. The utility model discloses can turn into the white light from the blue light that quantum dot membrane became invalid and spilled on limit to reduce backlight unit and leak the blue light phenomenon, improve display effect.
Description
Technical Field
The utility model relates to a technical field is shaded particularly, relates to a no frame backlight unit and have its display device that glues.
Background
Quantum dots (quantum dots) are nano-scale semiconductors that emit light of a specific frequency by applying a certain electric field or light pressure to the nano-semiconductor material, and the frequency of the emitted light varies with the size of the semiconductor, so that the color of the emitted light can be controlled by adjusting the size of the nano-semiconductor, which is called quantum dots because it has a characteristic of confining electrons and Electron holes (Electron holes), which is similar to atoms or molecules in the natural world.
The quantum dot technology enables an LCD (liquid crystal display) to be realized in a wide color field, is an ideal technology for 4K-level picture information, and can greatly improve the color reproducibility, the color saturation, the overall brightness and the like of picture images. However, the quantum dot film has an unavoidable defect that a part of quantum layer on the edge of the cut film material is damaged by water and oxygen, and a failure edge of a certain area appears, and the failure edge of the part cannot excite the blue light of the blue light LED into white light, so that the phenomenon of blue light on the periphery is caused.
The existing backlight module usually adopts a rubber frame as a bracket to fix each part of the backlight structure, and for the backlight structure which should use the quantum dot film, the existing mode is to change the material of the rubber frame so as to absorb or convert the blue light leaked from the failure edge of the quantum dot film. With the miniaturization of mobile phones, the backlight structure of the non-glue frame is widely used, and in the backlight structure of the non-glue frame, blue light leaking from the quantum dot film is reflected on the iron shell and enters the visual area, so that the display quality is affected, and therefore how to reduce the blue light leaking from the quantum dot film in the non-glue frame backlight module is an urgent problem to be solved in the industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a no frame backlight unit and have its display device glues can turn into the white light from the blue light that quantum dot membrane became invalid and spills on the limit to reduce backlight unit and leak blue light phenomenon, improve display effect.
The utility model provides a no frame backlight unit that glues, includes the iron-clad, the iron-clad have the bottom plate and be located the peripheral curb plate of bottom plate, top-down stacks up in the iron-clad and is equipped with optical film piece, quantum dot membrane, light guide plate and reflector plate, the curb plate is equipped with the material layer of changing light towards the inboard internal surface of iron-clad, it is used for turning into the white light with the blue light that spills from the invalid limit of quantum dot membrane to change the material layer of changing light.
Further, the light conversion material layer is one of a quantum dot layer, a yellow glue layer, a fluorescent material layer and a fluorescent glue strip.
Further, the light conversion material layer is attached to or sprayed on the inner surface of the side plate.
Further, the optical film comprises an upper brightness enhancement film and a lower brightness enhancement film, the lower brightness enhancement film is located on the upper surface of the quantum dot film, and the upper brightness enhancement film is located on the upper surface of the lower brightness enhancement film.
Furthermore, the upper end of the iron shell is provided with shading glue.
The utility model provides a display device, liquid crystal display and backlight unit, liquid crystal display locates on the backlight unit, backlight unit includes the iron-clad, the iron-clad have the bottom plate and be located the peripheral curb plate of bottom plate, top-down stacks gradually in the iron-clad is equipped with optics diaphragm, quantum dot membrane, light guide plate and reflector plate, the curb plate is equipped with towards the inboard internal surface of iron-clad and changes the light material layer, it is used for turning into the white light with the blue light that spills from the invalid limit of quantum dot membrane to change the light material layer.
Further, the light conversion material layer is one of a quantum dot layer, a yellow glue layer, a fluorescent material layer and a fluorescent glue strip.
Further, the light conversion material layer is attached to or sprayed on the inner surface of the side plate.
Further, the optical film comprises an upper brightness enhancement film and a lower brightness enhancement film, the lower brightness enhancement film is located on the upper surface of the quantum dot film, and the upper brightness enhancement film is located on the upper surface of the lower brightness enhancement film.
Furthermore, the upper end of the iron shell is provided with shading glue.
Compared with the prior art, the beneficial effects of the utility model are that: the light conversion material layer is arranged on the inner surface of the iron shell side plate, so that blue light leaking from the failure edge of the quantum dot film can be effectively converted into white light, the phenomenon that the backlight module leaks the blue light is reduced, and the display effect is improved.
Drawings
Fig. 1 is a schematic structural view of the non-adhesive frame backlight module of the present invention.
Fig. 2 is a schematic structural diagram of the display device of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
As shown in fig. 1, in a preferred embodiment, the backlight module without a plastic frame of the present invention mainly includes an iron case 1, the iron case 1 has a bottom plate 11 and a side plate 12 located at the periphery of the bottom plate 11, the side plate 12 is vertically disposed, and the bottom plate 11 and the side plate 12 enclose a cavity for supporting and accommodating each component of the backlight structure. The iron shell 1 is internally provided with an optical diaphragm 2, a quantum dot film 3, a light guide plate 4 and a reflector plate 5, wherein the optical diaphragm 2, the quantum dot film 3, the light guide plate 4 and the reflector plate 5 are stacked from top to bottom. In this embodiment, the optical film 2 includes an upper brightness enhancement film 21 and a lower brightness enhancement film 22, the lower brightness enhancement film 22 is located on the upper surface of the quantum dot film 3, and the upper brightness enhancement film 21 is located on the upper surface of the lower brightness enhancement film 22. The upper end of iron-clad 1 is equipped with shading and glues 7, and shading glues 7 and is the frame form, and its attached iron-clad 1's up end for shelter from the light of following backlight unit side and jeting out, avoid the light leak.
The inner surface of the side plate 12 facing the inner side of the iron shell 1 is provided with a light conversion material layer. Specifically, the light conversion material layer 6 may be formed on the inner surface of the side plate 12 by one of a quantum dot layer, a yellow glue layer, a fluorescent material layer, and a fluorescent glue strip by means of attaching or spraying. When the blue light is emitted from the side surface of the quantum dot film 3, the white light can be formed after being reflected by the light conversion material layer 6 and then enters the visual area, so that the utilization rate of the light is improved, the display brightness is enhanced, the phenomenon of blue light leakage is reduced, and the display effect is improved.
The utility model also provides a display device, it includes liquid crystal display 8 and foretell backlight unit, and liquid crystal display 8 locates the backlight unit top to it is fixed through the double faced adhesive tape. Backlight unit can be effectively with the blue light that leaks from quantum dot membrane 3 inefficacy limit turn into white light to reduce backlight unit and leak the phenomenon of blue light, improve liquid crystal display's display effect.
It should be understood that, in the backlight module and the display device, the light source not shown in the figure is disposed in the iron case 1, the light source is a blue LED, and is disposed on one side of the light incident surface of the light guide plate 4, and the light source is a conventional fixing structure, which is not described herein again.
In the description of the present invention, it is to be understood that the terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.
Claims (10)
1. The utility model provides a there is not frame backlight unit, its characterized in that, includes the iron-clad, the iron-clad have the bottom plate and be located the peripheral curb plate of bottom plate, top-down stacks up in the iron-clad and is equipped with optical film, quantum dot membrane, light guide plate and reflector plate, the curb plate is equipped with the commentaries on classics light material layer towards the inboard internal surface of iron-clad, change the light material layer and be used for turning into white light with the blue light that spills from the invalid limit of quantum dot membrane.
2. The non-frame backlight module as claimed in claim 1, wherein the light conversion material layer is one of a quantum dot layer, a yellow glue layer, a fluorescent material layer, and a fluorescent glue strip.
3. The backlight module as claimed in claim 2, wherein the light-converting material layer is attached to or sprayed on the inner surface of the side plate.
4. The backlight module as claimed in claim 1, wherein the optical film comprises an upper brightness enhancement film and a lower brightness enhancement film, the lower brightness enhancement film is disposed on the upper surface of the quantum dot film, and the upper brightness enhancement film is disposed on the upper surface of the lower brightness enhancement film.
5. The backlight module as claimed in claim 1, wherein a light-shielding adhesive is disposed on an upper end of the iron case.
6. The utility model provides a display device, its characterized in that, liquid crystal display and backlight unit, liquid crystal display locates on the backlight unit, backlight unit includes the iron-clad, the iron-clad have the bottom plate and be located the peripheral curb plate of bottom plate, top-down stacks in the iron-clad and is equipped with optics diaphragm, quantum dot membrane, light guide plate and reflector plate, the curb plate is equipped with towards the inboard internal surface of iron-clad and changes the light material layer, it is used for turning into white light with the blue light that spills from the invalid limit of quantum dot membrane to change the light material layer.
7. The display device according to claim 6, wherein the light conversion material layer is one of a quantum dot layer, a yellow glue layer, a fluorescent material layer, and a fluorescent glue stripe.
8. The display device according to claim 7, wherein the light conversion material layer is attached or sprayed on the inner surface of the side plate.
9. The display device according to claim 6, wherein the optical film comprises an upper brightness enhancement film and a lower brightness enhancement film, the lower brightness enhancement film is located on an upper surface of the quantum dot film, and the upper brightness enhancement film is located on an upper surface of the lower brightness enhancement film.
10. The display device according to claim 6, wherein the upper end of the iron case is provided with a light-shielding paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021638541.4U CN212905820U (en) | 2020-08-10 | 2020-08-10 | Non-glue frame backlight module and display device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021638541.4U CN212905820U (en) | 2020-08-10 | 2020-08-10 | Non-glue frame backlight module and display device with same |
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| Publication Number | Publication Date |
|---|---|
| CN212905820U true CN212905820U (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021638541.4U Active CN212905820U (en) | 2020-08-10 | 2020-08-10 | Non-glue frame backlight module and display device with same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115202100A (en) * | 2022-04-29 | 2022-10-18 | 高创(苏州)电子有限公司 | Backlight module, display module and display device |
| WO2023070266A1 (en) * | 2021-10-25 | 2023-05-04 | 瑞仪光电(苏州)有限公司 | Backlight module and display device |
-
2020
- 2020-08-10 CN CN202021638541.4U patent/CN212905820U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023070266A1 (en) * | 2021-10-25 | 2023-05-04 | 瑞仪光电(苏州)有限公司 | Backlight module and display device |
| CN115202100A (en) * | 2022-04-29 | 2022-10-18 | 高创(苏州)电子有限公司 | Backlight module, display module and display device |
| WO2023207924A1 (en) * | 2022-04-29 | 2023-11-02 | 高创(苏州)电子有限公司 | Backlight module, display module, and display device |
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