CN221303767U - Lamp panel, backlight module and display device - Google Patents
Lamp panel, backlight module and display device Download PDFInfo
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- CN221303767U CN221303767U CN202323231708.1U CN202323231708U CN221303767U CN 221303767 U CN221303767 U CN 221303767U CN 202323231708 U CN202323231708 U CN 202323231708U CN 221303767 U CN221303767 U CN 221303767U
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Abstract
The application discloses a lamp panel, a backlight module and display equipment, and relates to the technical field of display. The lamp panel comprises a substrate, wherein a plurality of light sources and light guide structures corresponding to the light sources are arranged on the substrate; the light guide structure comprises a light splitting node and a light splitting tributary structure communicated with the light path of the light splitting node; the light source is connected with the light splitting node in the light guide structure, and light emitted by the light source is transmitted to the light splitting branch structure through the light splitting node after being transmitted to the light splitting node and is emitted through the light splitting node and the light splitting branch structure. According to the application, each independent control partition of the substrate is only provided with illumination by one lamp bead, and under the action of the light guide structure, light emitted by a single lamp bead can be uniformly dispersed on the surface of the independent control partition through the light splitting node and the light splitting branch structure of the light guide structure, so that the traditional mode of providing illumination by using a plurality of LED lamp beads is replaced, and the LED lamp panel can save more energy and improve the heat dissipation effect of the lamp panel.
Description
Technical Field
The application relates to the technical field of display, in particular to a lamp panel, a backlight module and display equipment.
Background
The conventional local dimming display technology is mainly applied to a direct type backlight module, each partition of the local dimming comprises a certain number of LED lamp beads, and each partition is independently controlled, so that a high-contrast image quality effect is formed. However, this type of backlight module needs to use a large number of LED beads, and all the LED beads must be distributed in the lamp panel according to a specific rule, so that the conventional backlight module has a large heat dissipation problem.
Disclosure of Invention
The embodiment of the application provides a lamp panel, a backlight module and display equipment, which are used for solving the problem of poor heat dissipation of the traditional backlight module.
An aspect of the present application provides a light panel, including a substrate, on which a plurality of light sources and light guide structures corresponding to each light source are disposed; the light guide structure comprises a light splitting node and a light splitting tributary structure communicated with the light path of the light splitting node; the light source is connected with the light splitting node in the light guide structure, and light emitted by the light source is transmitted to the light splitting branch structure through the light splitting node after being transmitted to the light splitting node and is emitted through the light splitting node and the light splitting branch structure.
In some embodiments, the branch light splitting structure includes a light pipe branch in communication with the light splitting node and a light exit connected to the light pipe branch.
In some embodiments, the substrate includes a plurality of independent control partitions, each of the independent control partitions corresponding to one of the light sources and the light guiding structures.
In some embodiments, the light splitting tributary structure includes at least two light pipe branches and two light emitting portions, the light splitting node is disposed at a central position of the independent control partition, and the at least two light emitting portions are uniformly distributed with the light splitting node as a center.
In some embodiments, the light splitting tributary structure comprises at least two light pipe branches and two light emitting portions, and the at least two light emitting portions are uniformly arranged in rows and columns on the independent control partition.
In some embodiments, the light guiding structure further comprises a dominant light pipe with one end communicating with the light source and the other end communicating with the light splitting node.
In some embodiments, the light source is mounted inside or outside the independent control zone.
In some embodiments, the light pipe branches and the light pipe are all totally reflective light pipes made of an optical grade transparent material.
Another aspect of the present embodiment provides a display device including a light panel.
Another aspect of the present embodiment provides a display apparatus including a backlight module.
The embodiment of the application provides a lamp panel, a backlight module and display equipment, wherein the lamp panel comprises a substrate, and a plurality of light sources and light guide structures corresponding to the light sources are arranged on the substrate; the light guide structure comprises a light splitting node and a light splitting tributary structure communicated with the light path of the light splitting node; the light source is connected with the light splitting node in the light guide structure, and light emitted by the light source is transmitted to the light splitting branch structure through the light splitting node after being transmitted to the light splitting node and is emitted through the light splitting node and the light splitting branch structure. According to the embodiment of the application, the substrate is divided into the plurality of independent control partitions, each independent control partition is provided with the light source by only one LED lamp bead, and under the action of the newly added light guide structure, the light source emitted by a single LED lamp bead can be uniformly dispersed on the surface of the independent control partition through the plurality of light emitting parts of the light guide structure, so that the traditional mode of providing illumination by using a plurality of LED lamp beads is replaced, the energy is saved, and the heat dissipation effect of the lamp panel can be improved.
Drawings
The technical solution and other advantageous effects of the present application will be made apparent by the following detailed description of the specific embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a lamp panel according to an embodiment of the present application.
Fig. 2 is a schematic diagram of another structure of a lamp panel according to an embodiment of the present application.
Fig. 3 is a schematic diagram of another structure of a lamp panel according to an embodiment of the present application.
Reference numerals: 1. a substrate; 2. a light source; 3. a light guiding structure; 31. a beam splitting node; 32. a light splitting tributary structure; 321. a light pipe branch; 322. a light emitting section; 33. a light pipe.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 application and simplifying the description, and do not indicate or imply that the device or element 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 application. 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 of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, 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 connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
It should be noted that the conventional local dimming display technology is mainly applied to a direct type backlight module, each partition of the local dimming includes a certain number of LED lamp beads, and each partition is independently controlled, so as to form a high-contrast image quality effect. However, this type of backlight module needs to use a large number of LED beads, and all the LED beads must be placed in the lamp panel regularly, so that the conventional backlight module has a large heat dissipation problem.
In order to solve the problems, the scheme provides a lamp panel, a backlight module and display equipment, through dividing a substrate into a plurality of independent control partitions, each independent control partition only provides a light source by one LED lamp bead, and under the effect of a newly-increased light guide structure, the light source emitted by a single LED lamp bead can be uniformly dispersed on the surface of the independent control partition through a plurality of light emitting parts of the light guide structure, so that the mode that a plurality of LED lamp beads are required to be used for providing illumination in the prior art is replaced, and the heat dissipation effect of the lamp panel can be more energy-saving and can be improved.
Specifically, referring to fig. 1-2, fig. 1 is a schematic structural diagram of a lamp panel according to an embodiment of the present application. An aspect of the present application provides a light panel, including a substrate 1, where a plurality of light sources 2 and light guide structures 3 corresponding to each light source 2 are disposed on the substrate 1; the light guide structure 3 comprises a light splitting node 31 and a light splitting tributary structure 32 which is in light path communication with the light splitting node 31; the light source 2 is connected to the optical splitting node 31 in the optical guiding structure 3, and after being transmitted to the optical splitting node 31, the light emitted by the light source 2 is transmitted to the optical splitting tributary structure 32 through the optical splitting node 31, and is emitted through the optical splitting node 31 and the optical splitting tributary structure 32.
In this embodiment, the lamp panel specifically includes a substrate 1, a light source 2 (i.e. LED lamp beads) and a light guiding structure 3. Through dividing into a plurality of independent control subregion with base plate 1, every independent control subregion only provides light source 2 by an LED lamp pearl to under the effect of newly-increased light guide structure 3, can evenly disperse the light that single LED lamp pearl sent at independent control subregion surface through light splitting node 31 and the branch light structure 32 of light guide structure 3, with replace the mode that traditional needs to use a plurality of LED lamp pearls to provide light source 2, not only can be more energy-conserving but also the radiating effect of lamp plate can be promoted.
Specifically, the substrate 1 in the lamp panel is divided into a plurality of independent control partitions based on the local dimming display technology, and the specific number of the independent control partitions can be determined according to the product requirement, which is not limited herein. Each partition on the lamp panel is independently controlled by utilizing the local dimming display technology, so that a high-contrast image quality effect is formed.
It can be understood that the conventional local dimming display technology is to provide a plurality of light sources 2 in each independent control partition, so that a large number of light sources 2 are required to be used in the backlight module of this type, and all the light sources 2 must be regularly placed in the lamp panel, so that the conventional backlight module has a large heat dissipation problem. In order to solve the above problems, the lamp panel provided by the present scheme is provided with a light source 2 in each independent control partition, and the light source 2 of the partition is controlled by a single light source 2, so that the problem of poor heat dissipation in the conventional backlight module is solved by reducing the use of the light source 2. However, simply changing the number of light sources 2 without other adjustment inevitably results in uneven brightness of the display device using the panel. Since the present solution also adds a light guiding structure 3 solving the above-mentioned problems.
The light guide structures 3 in the lamp panel are arranged in each independent control zone in a one-to-one correspondence manner, and the input end of each light guide structure 3 is in butt joint with the light path of the light source 2 in the corresponding independent control zone. Each light guide structure 3 includes a light splitting node 31 and a light splitting tributary structure 32 in optical communication with the light splitting node 31.
It should be explained that the optical splitting node 31 is configured to store the optical energy provided by the optical source 2, and is capable of dispersing the optical energy into the optical splitting tributary structure 32, and meanwhile, the optical splitting node 31 is capable of emitting part of the optical energy in the current area to provide illumination by utilizing the characteristic of light transmission of the optical splitting node itself.
The light source 2 is connected to the optical splitting node 31 in the optical guiding structure 3, and the light emitted from the light source 2 is transmitted to the optical splitting tributary structure 32 through the optical splitting node 31 after being transmitted to the optical splitting node 31, and is emitted through the optical splitting node 31 and the optical splitting tributary structure 32. The light emitted by the single light source 2 can be uniformly dispersed on the surface of the independent control partition through the light guide structure 3 by the light splitting nodes 31 and the light splitting branch structure 32 so as to replace the traditional mode that a plurality of LED lamp beads are required to be used for providing illumination, so that the energy is saved and the heat dissipation effect of the lamp panel can be improved.
Specifically, the branching light splitting structure 32 includes a light pipe branch 321 communicating with the branching light node 31, and a light outlet portion 322 connected to the light pipe branch 321. Illustratively, the light-emitting portion 322 may be a lens.
As an embodiment, the light splitting tributary structure 32 includes at least two light pipe branches 321 and two light emitting portions 322, the light splitting node 31 is disposed at a central position of the independent control partition, and the at least two light emitting portions 322 are uniformly distributed around the light splitting node 31. As shown in fig. 2, the branch light splitting structure 32 includes two light pipe branches 321 and two light emitting portions 322, and the two light pipe branches 321 and the two light emitting portions 322 are respectively located at two sides of the light splitting node 31. It is to be understood that the two light pipe branches 321 and the two light emitting portions 322 may be located on the upper and lower sides, the left and right sides, or the diagonal sides of the light splitting node 31, which is not limited herein. As another embodiment, as shown in fig. 3, the light splitting branch structure 32 includes at least two light pipe branches 321 and two light emitting portions 322, and the at least two light emitting portions 322 are uniformly arranged in rows and columns on the independent control partition 31.
In some embodiments, the light guiding structure 3 includes, in addition to the light splitting node 31 and the light splitting tributary structure 32 as described above, a main light pipe 33 having one end communicating with the light source 2 and the other end communicating with the light splitting node 31. The mounting position for the light source 2 can be freely selected due to the presence of the main light pipe 33. For example, inside or outside the independent control partition, thereby avoiding the problem of poor heat dissipation effect due to the concentrated arrangement of the light sources 2.
As another alternative, as shown in fig. 3, the light guiding structure 3 may not need a main light pipe 33, but needs to install the light source 2 at the light splitting node 31 in the independent control partition, that is, only at the surface of the independent control partition.
The light guide branch 321 and the light guide 33 are all totally reflective light guides made of an optical transparent material. The principle of operation of a total reflection light pipe is total reflection of light. When light enters glass or plastic material from the air, the light deflects due to the difference in the individual refractive indices. When the incident angle of the light is less than or equal to the critical angle, the light is totally reflected, and thus transmitted along the path of the totally reflecting light guide. In this way, the total reflection light pipe can transfer the light of the single light source 2 to the plurality of light emitting parts 322 along the route designed by the light guiding structure 3 and release the light, so that the light is uniformly distributed on the surface of the independent control zone.
The optical transparent material is any one of polymethyl methacrylate (PMMA), polystyrene (PS), polycarbonate (PC), and polydiallyldiglycol carbonate (CR-39), and the like, and is not limited thereto.
Another aspect of the embodiments of the present application provides a display device including the lamp panel described above.
In this embodiment, the specific structure of the lamp panel including the lamp panel is detailed in the foregoing embodiment. The lamp panel adopts all the technical schemes of the foregoing embodiments, so that the lamp panel has at least all the beneficial effects brought by all the technical schemes of all the foregoing embodiments, and will not be described in detail herein.
Another aspect of the embodiments of the present application provides a display apparatus.
In this embodiment, the specific structure of the display device including the lamp panel is detailed in the foregoing embodiment. The lamp panel adopts all the technical schemes of the foregoing embodiments, so that the lamp panel has at least all the beneficial effects brought by all the technical schemes of all the foregoing embodiments, and will not be described in detail herein.
In summary, the embodiment of the application provides a lamp panel, a backlight module and a display device, wherein the lamp panel comprises a substrate 1, and a plurality of light sources 2 and light guide structures 3 corresponding to each light source 2 are arranged on the substrate 1; the light guide structure 3 comprises a light splitting node 31 and a light splitting tributary structure 32 which is in light path communication with the light splitting node 31; the light source 2 is connected to the optical splitting node 31 in the optical guiding structure 3, and after being transmitted to the optical splitting node 31, the light emitted by the light source 2 is transmitted to the optical splitting tributary structure 32 through the optical splitting node 31, and is emitted through the optical splitting node 31 and the optical splitting tributary structure 32. According to the embodiment of the application, the substrate 1 is divided into a plurality of independent control partitions, each independent control partition is provided with the light source 2 by only one light source 2, and under the action of the newly added light guide structure 3, light emitted by a single light source 2 can be uniformly dispersed on the surface of the independent control partition through the light splitting nodes 31 and the light splitting branch structures 32 of the light guide structure 3, so that the traditional mode of providing illumination by using a plurality of LED lamp beads is replaced, and the energy-saving LED lamp panel can be more saved and the heat dissipation effect of the lamp panel can be improved.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.
The lamp panel, the backlight module and the display device provided by the embodiment of the application are described in detail, and specific examples are applied to explain the principle and the implementation mode of the application, and the description of the above embodiment is only used for helping to understand the technical scheme and the core idea of the application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.
Claims (10)
1. A lamp panel, comprising:
the LED lamp comprises a substrate, wherein a plurality of light sources and light guide structures corresponding to the light sources are arranged on the substrate;
The light guide structure comprises a light splitting node and a light splitting tributary structure communicated with the light path of the light splitting node;
The light source is connected with the light splitting node in the light guide structure, and light emitted by the light source is transmitted to the light splitting branch structure through the light splitting node after being transmitted to the light splitting node and is emitted through the light splitting node and the light splitting branch structure.
2. The lamp panel of claim 1, wherein the branch light splitting structure includes a light pipe branch in communication with the light splitting node and a light exit portion in communication with the light pipe branch.
3. The lamp panel of claim 1, wherein the substrate comprises a plurality of independent control zones, each of the independent control zones corresponding to a light source and a light guiding structure.
4. The lamp panel of claim 3, wherein the branch light splitting structure comprises at least two light pipe branches and two light emitting portions, the light splitting node is disposed at a central position of the independent control partition, and the at least two light emitting portions are uniformly distributed with the light splitting node as a center.
5. The lamp panel of claim 3, wherein the branch light splitting structure comprises at least two light pipe branches and two light emitting portions, and the at least two light emitting portions are uniformly arranged in rows and columns on the independent control partition.
6. The lamp panel of claim 5, wherein the light guide structure further comprises a light pipe having one end in communication with the light source and the other end in communication with the light splitting node.
7. The light panel of claim 6, wherein the light source is mounted inside or outside the independent control zone.
8. The lamp panel of claim 6, wherein the light pipe branches and the light pipe are all totally reflective light pipes made of an optical grade transparent material.
9. A backlight module comprising a lamp panel according to any one of claims 1-8.
10. A display device comprising the backlight module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323231708.1U CN221303767U (en) | 2023-11-28 | 2023-11-28 | Lamp panel, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323231708.1U CN221303767U (en) | 2023-11-28 | 2023-11-28 | Lamp panel, backlight module and display device |
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| Publication Number | Publication Date |
|---|---|
| CN221303767U true CN221303767U (en) | 2024-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323231708.1U Active CN221303767U (en) | 2023-11-28 | 2023-11-28 | Lamp panel, backlight module and display device |
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| CN (1) | CN221303767U (en) |
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- 2023-11-28 CN CN202323231708.1U patent/CN221303767U/en active Active
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