CN114779526A - Light-emitting component, backlight module and display device - Google Patents
Light-emitting component, backlight module and display device Download PDFInfo
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- CN114779526A CN114779526A CN202210393388.0A CN202210393388A CN114779526A CN 114779526 A CN114779526 A CN 114779526A CN 202210393388 A CN202210393388 A CN 202210393388A CN 114779526 A CN114779526 A CN 114779526A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a light-emitting component, a backlight module and a display device, wherein the light-emitting component comprises a lamp bead and a reflector plate, the reflector plate comprises a plurality of reflector walls, the reflector walls are sequentially connected end to end and enclose a reflector cavity, two ends of the reflector cavity are respectively provided with a mounting hole and a light outlet, the lamp bead is mounted in the mounting hole, the light-emitting side of the lamp bead faces the light outlet, and the volume of the reflector cavity is gradually enlarged from the mounting hole to the light outlet. The light-emitting component enables the light rays emitted by the lamp beads to be always limited in the reflecting cavity by installing the lamp beads at the mounting holes, the light rays cannot spread outwards, and the phenomenon of generating halation is effectively avoided; and the reflecting wall is used for reflecting light to the light outlet, so that the light outlet brightness at the light outlet is improved, and the light utilization rate is improved.
Description
Technical Field
The invention relates to the technical field of display devices, in particular to a light-emitting assembly, a backlight module and a display device.
Background
With the development of backlight technology, consumers have higher and higher requirements on the viewing experience of televisions, and the televisions are also more focused on improving the brightness, contrast and color gamut of the television backlight during production and manufacturing. At present, a television usually achieves higher contrast ratio by Local dimming (Local dimming), and conventional Local dimming generally adopts one LED as a dimming region of a backlight or multiple LEDs connected in series and parallel to form a dimming region, and multiple dimming regions are combined with each other to diverge a uniform surface light source.
Disclosure of Invention
The invention mainly aims to provide a light-emitting component, a backlight module and a display device, and aims to solve the problem that the backlight module generates a halo phenomenon.
To achieve the above object, the present invention provides a light emitting assembly, including:
a lamp bead;
the reflector plate, the reflector plate includes a plurality of reflection walls, and is a plurality of the reflection wall is end to end connection in proper order and encloses into the reflection chamber, the both ends in reflection chamber have mounting hole and light-emitting window respectively, the lamp pearl install in the mounting hole, just the luminous side orientation of lamp pearl the light-emitting window sets up, the volume in reflection chamber certainly the mounting hole to the direction of light-emitting window is the setting of gradually expanding.
Optionally, the reflecting wall is an arc-shaped wall, and the reflecting wall protrudes out of the reflecting cavity; or, the reflecting wall is an inclined wall, and the reflecting wall is inclined towards the outside of the reflecting cavity.
Optionally, the light emitting assembly further includes a lens, and the lens is covered on the lamp bead and located in the reflection cavity.
Optionally, the number of the reflecting walls is four, the light outlet is rectangular, and the mounting hole is circular or rectangular.
Optionally, the reflector plate is an integrally formed PET material part.
The invention further provides a backlight module which comprises a shell, a diffusion plate and the light-emitting assemblies, wherein an installation cavity is formed in the shell and is provided with an opening, the diffusion plate is covered at the opening, the number of the light-emitting assemblies is multiple, the light-emitting assemblies are arranged in the installation cavity in an array mode, and the light outlet of the reflector plate faces the diffusion plate.
Optionally, the housing includes a substrate and a side plate surrounding the periphery of the substrate, the substrate and the side plate define the mounting cavity therebetween, and the light emitting assemblies are arranged in the substrate in an array manner.
Optionally, the distance between the substrate and the diffusion plate is 3mm to 40 mm; in the plurality of light-emitting components, the distance between any two adjacent lamp beads is 5.3-100.5 mm.
Optionally, the backlight module further includes an optical film set, and the optical film set is stacked on one side of the diffusion plate, which is away from the installation cavity.
The invention also provides a display device which comprises the backlight module.
In the light-emitting component, the lamp beads are used for emitting light, and one side of the lamp beads emitting light is arranged towards the light outlet; among the light rays emitted by the lamp beads, a part of the light rays penetrate through the reflecting cavity and are directly emitted to the light outlet so that the light outlet emits light rays, the rest part of the light rays are dispersed towards the direction outside the reflecting cavity and irradiate one side of the reflecting wall facing the reflecting cavity, the reflecting wall reflects the light rays irradiated on the reflecting wall towards the direction of the light outlet, and then the light rays penetrate through the reflecting cavity and are emitted from the light outlet. The light-emitting component enables the light emitted by the lamp beads to be always limited in the reflecting cavity by installing the lamp beads at the mounting holes, and the light cannot spread outwards, so that the phenomenon of generating halation is effectively avoided; and the reflecting wall is used for reflecting light to the light outlet, so that the light outlet brightness at the light outlet is improved, and the light utilization rate is improved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of 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 the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic front view of a light emitting device according to an embodiment of the present invention;
FIG. 2 is a schematic front view illustrating a light emitting device according to another embodiment of the present invention;
FIG. 3 is a schematic top view of a light emitting device according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a light emitting device according to another embodiment of the present invention;
fig. 5 is a schematic view of a front view structure of a backlight module according to an embodiment of the invention;
FIG. 6 is a schematic top view illustrating a backlight module according to an embodiment of the present invention;
fig. 7 is a schematic view illustrating dimension labeling of the backlight module in a main viewing angle according to an embodiment of the invention;
fig. 8 is a schematic diagram illustrating dimension labeling of a backlight module according to an embodiment of the invention in a top view.
The reference numbers indicate:
| reference numerals | Name(s) | Reference numerals | Name(s) |
| 100 | |
200 | |
| 10 | |
201 | |
| 20 | |
2011 | |
| 21 | |
2012 | |
| 22 | |
202 | |
| 221 | |
203 | |
| 222 | |
2031 | |
| 30 | Lens and its |
204 | Optical film group |
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "connected", "fixed", and the like are to be understood broadly, for example, "fixed" may be fixedly connected, may be detachably connected, or may be integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The description of the orientations of "up", "down", "front", "rear", "left", "right", etc. in the present invention is based on the orientations shown in fig. 1 to 4, and is only for explaining the relative positional relationship between the respective members in the postures shown in fig. 1 to 4, and if the specific posture is changed, the directional indication is changed accordingly.
The invention provides a light emitting assembly.
The light emitting component 100 of the embodiment, light emitting component 100 includes lamp pearl 10 and reflector plate 20, reflector plate 20 includes a plurality of reflection walls 21, a plurality of reflection walls 21 end to end connect in proper order and enclose into reflection chamber 22, the both ends of reflection chamber 22 have mounting hole 221 and light-emitting opening 222 respectively, lamp pearl 10 is installed in mounting hole 221, and the luminous side of lamp pearl 10 sets up towards light-emitting opening 222, the volume of reflection chamber 22 is the divergent setting from mounting hole 221 to the direction of light-emitting opening 222.
As shown in fig. 1 to 4, the reflector plate 20 includes a plurality of reflector walls 21 connected end to end in sequence, and the plurality of reflector walls 21 enclose an annular structure, so that a reflector cavity 22 for reflecting light is formed in the reflector plate 20, a mounting hole 221 is formed at one end of the reflector plate 20, a light outlet 222 is formed at the other end of the reflector plate 20, the mounting hole 221 and the light outlet 222 are oppositely disposed and both communicated with the reflector cavity 22, a volume of the reflector cavity 22 gradually increases from one end where the mounting hole 221 is located to a direction of the light outlet 222, that is, a projection area of the reflector cavity 22 in a vertical direction gradually increases from bottom to top. The lamp beads 10 are disposed at the mounting holes 221 and located in the reflection cavity 22, the lamp beads 10 are used for emitting light, and one side of the lamp beads 10 emitting light is disposed toward the light outlet 222.
Among the light rays emitted by the lamp bead 10, a part of the light rays pass through the reflective cavity 22 and are directly emitted to the light outlet 222, so that the light outlet 222 emits the light rays, the rest of the light rays are diffused towards the direction outside the reflective cavity 22 and irradiate one side of the reflective wall 21 facing the reflective cavity 22, the reflective wall 21 reflects the light rays irradiated thereon towards the light outlet 222, and then the light rays pass through the reflective cavity 22 and are emitted from the light outlet 222. In the light emitting assembly 100 of the present embodiment, the lamp bead 10 is installed at the installation hole 221, so that light emitted by the lamp bead 10 is always limited in the reflection cavity 22, and the light cannot spread outward, thereby effectively avoiding the halo phenomenon; moreover, the reflective wall 21 is used for reflecting the light to the light outlet 222, which not only improves the light-emitting brightness at the light outlet 222, but also improves the light utilization rate.
In one embodiment, the reflective wall 21 is an arc-shaped wall, and the reflective wall 21 protrudes out of the reflective cavity 22; as shown in fig. 1, the reflecting wall 21 is an arc-shaped structure, the reflecting wall 21 is formed by protruding toward the outside of the reflecting cavity 22, and the reflecting walls 21 are connected in sequence to form the reflecting cavity 22 with a bowl-shaped projection in the horizontal direction. When the light-emitting angle of the lamp bead 10 is greater than the preset light-emitting angle, the reflecting wall 21 adopts the arc-shaped wall to play a role of reflecting light to the light-emitting opening 222, and the reflecting angle of the light reflected by the reflecting wall 21 is large, so that the light is easily reflected directly to the light-emitting opening 222, and the light-emitting opening 222 is uniform in light-emitting and high in brightness.
In another embodiment, the reflective wall 21 is an inclined wall, and the reflective wall 21 is inclined toward the outside of the reflective cavity 22; as shown in fig. 2, the reflecting walls 21 are disposed obliquely from the mounting hole 221 to the outside of the reflecting cavity 22, and the reflecting walls 21 are connected in sequence to form the reflecting cavity 22 having a trapezoidal projection in the horizontal direction. When the light-emitting angle of the lamp bead 10 is smaller than the preset light-emitting angle, the reflecting wall 21 can not only play a role of reflecting light to the light-emitting opening 222 by adopting the inclined wall, but also the reflecting angle of the light reflected by the reflecting wall 21 is smaller, so that the light-emitting uniformity and the light-emitting brightness are improved.
It should be noted that the preset light-emitting angle can be flexibly set according to actual use requirements, for example, when the light-emitting assembly 100 is applied to a television, the preset light-emitting angle can be set according to the size of a display screen of the television; when the preset light-emitting angle is 120 degrees, if the light-emitting angle of the lamp bead 10 is larger than 120 degrees, the reflecting wall 21 is an arc-shaped wall, and if the light-emitting angle of the lamp bead 10 is smaller than 120 degrees, the reflecting wall 21 is an inclined wall; when the preset light-emitting angle is 135 degrees, the reflecting wall 21 is an arc-shaped wall when the light-emitting angle of the lamp bead 10 is greater than 135 degrees, and the reflecting wall 21 is an inclined wall when the light-emitting angle of the lamp bead 10 is less than 135 degrees.
In this embodiment, the light emitting assembly 100 further includes a lens 30, and the lens 30 is covered on the lamp bead 10 and located in the reflective cavity 22. As shown in fig. 1 and fig. 2, a lens 30 is further installed in the reflection cavity 22, the lens 30 covers the lamp bead 10 and allows light emitted by the lamp bead 10 to pass through, and the lens 30 is covered on the lamp bead 10, so that the lens 30 plays a role in adjusting the light-emitting angle of the lamp bead 10, and the light-emitting uniformity of the light-emitting component 100 is further improved. Understandably, when the light-emitting angle of the lamp bead 10 needs to be reduced, the lens 30 is a convex lens to converge light rays and improve the light-emitting brightness; when the light-emitting angle of needs increase lamp pearl 10, lens 30 are concave lens to divergent light improves the light-emitting homogeneity, mutually supports through setting up lens 30 and reflector plate 20, with the nimble light-emitting characteristic of adjusting light emitting component 100, and structural flexibility is good, the commonality is high.
In one embodiment, the number of the reflecting walls 21 is four, the light outlet 222 is rectangular, and the mounting hole 221 is circular; as shown in fig. 3, the four reflecting walls 21 are sequentially connected to enclose a reflecting cavity 22, a circular mounting hole 221 is formed at one end of the reflecting cavity 22, a rectangular light outlet 222 is formed at the other end of the reflecting cavity 22, and the circular mounting hole 221 and the rectangular light outlet 222 are oppositely arranged. In another embodiment, the number of the reflecting walls 21 is four, and the light outlet 222 and the mounting hole 221 are rectangular; as shown in fig. 4, the four reflecting walls 21 are sequentially connected to enclose the reflecting cavity 22, a rectangular mounting hole 221 and a rectangular light outlet 222 are respectively formed at two ends of the reflecting cavity 22, and the rectangular mounting hole 221 and the rectangular light outlet 222 are arranged opposite to each other. The light outlet 222 arranged in a rectangular shape facilitates the array arrangement of the plurality of light emitting assemblies 100 to form a rectangular light emitting surface, the light emission is uniform, the generation of halation is effectively avoided, the regional dimming of the backlight module is facilitated, and the structural design is reasonable.
In the preferred embodiment, the reflective sheet 20 is an integrally formed piece of PET material. Specifically, the plurality of reflective walls 21 can be integrally formed by a blow molding process or an injection molding process in the prior art, that is, the reflective sheet 20 is an integrally formed part, which is not only easy to manufacture, but also has the advantages of saving assembly steps and omitting assembly errors; moreover, the reflective sheet 20 can be made of a PET (polyethylene glycol terephthalate) material in the prior art, the PET is easy to obtain and has good optical performance, and the reflective sheet 20 made of the PET material improves the reflectivity, improves the lighting effect and saves the economic cost.
The present invention further provides a backlight module 200, the backlight module 200 includes a housing 201, a diffusion plate 202 and the light emitting elements 100 as described above, a mounting cavity 203 is formed in the housing 201, the mounting cavity 203 has an opening 2031, the diffusion plate 202 is covered at the opening 2031, the number of the light emitting elements 100 is plural, the plurality of light emitting elements 100 are arranged in the mounting cavity 203 in an array, and the light outlet 222 of the reflector 20 is disposed toward the diffusion plate 202. As shown in fig. 5 and 6, the mounting cavity 203 formed in the housing 201 is used for mounting a plurality of light emitting assemblies 100, the plurality of light emitting assemblies 100 are arranged in the mounting cavity 203 in an array, the light outlet 222 of each reflector 20 is disposed corresponding to the opening 2031 of the mounting cavity 203, and the opening 2031 is covered with the diffuser plate 202 to close the opening 2031. Each light emitting assembly 100 can emit light, the plurality of light emitting assemblies 100 are arranged in an array to form a surface light source with uniform light emission, and the plurality of light emitting assemblies 100 are divided into a plurality of dimming areas to realize area dimming of the backlight module 200.
Moreover, each light emitting component 100 can limit the light emitted by the lamp bead 10 in the reflection cavity 22 through the reflection sheet 20, so that the halo phenomenon is avoided, the light emitted by each light emitting component 100 is effectively prevented from halo to other adjacent light emitting components 100, the contrast of the backlight module 200 is improved, and the user experience is improved. In addition, the diffusion plate 202 is disposed corresponding to the light exit 222 of each reflector 20, so as to further diffuse light and improve the uniformity of light exit. In the backlight module 200 of the present embodiment, the specific structure of the light emitting element 100 refers to the above embodiments, and since the backlight module 200 adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not described in detail herein.
In this embodiment, the housing 201 includes a substrate 2011 and a side plate 2012 surrounding the periphery of the substrate 2011, a mounting cavity 203 is defined between the substrate 2011 and the side plate 2012, and the plurality of light emitting assemblies 100 are arranged on the substrate 2011 in an array manner. The backlight module 200 further includes an optical film set 204, and the optical film set 204 is stacked on a side of the diffuser plate 202 away from the installation cavity 203. As shown in fig. 5 and 6, the housing 201 includes a substrate 2011 and a side plate 2012, the side plate 2012 surrounds the periphery of the substrate 2011 and surrounds the mounting cavity 203 for mounting the light emitting assembly 100 with the substrate 2011, the substrate 2011 is disposed opposite to the diffusion plate 202, the optical film group 204 is stacked on the diffusion plate 202, and the optical film group 204 includes a plurality of optical films such as a brightness enhancement film and a diffusion film that are stacked, so as to further improve the light emitting effect of the backlight module 200.
In a preferred embodiment, the distance between the base plate 2011 and the diffuser plate 202 is 3mm to 40 mm; in the plurality of light-emitting components 100, the distance between any two adjacent lamp beads 10 is 5.3 mm-100.5 mm. Specifically, as shown in fig. 7 and 8, the light outlet 222 is rectangular, one side of the light outlet 222 has a length d1, d1 is 5mm to 100mm, the other side perpendicular to the light outlet 222 has a length d2, d2 is 5mm to 100mm, and the distance between the top edges of any two adjacent reflective sheets 20 is d3, and d3 is 0.3mm to 0.5 mm; it can be understood that, in the lamp beads 10 arranged on the substrate 2011 in a plurality of arrays, the distance between any two adjacent lamp beads 10 is d4, d4 ═ d1+ d3 or d4 ═ d2+ d3, that is, d4 ═ 5.3mm to 100.5mm, the arrangement structure of the plurality of light emitting assemblies 100 is reasonable, the light-emitting uniformity of the backlight module 200 can be improved, and the backlight module has high contrast and brightness. In addition, the distance between the substrate 2011 and the diffusion plate 202 is h, that is, the height of the mounting cavity 203 is h, and h is 3mm to 40mm, so that the light emitting module 100 is convenient to mount, and the light emitting module has the advantages of being reasonable in structural design and improving the light emitting effect.
The present invention further provides a display device, which includes the backlight module 200 as described above, and the specific structure of the backlight module 200 refers to the above embodiments, and since the display device adopts all technical solutions of all the above embodiments, the display device at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A light emitting assembly, comprising:
a lamp bead;
the reflector plate, the reflector plate includes a plurality of reflection walls, and is a plurality of the reflection wall is end to end connection in proper order and encloses into the reflection chamber, the both ends in reflection chamber have mounting hole and light-emitting window respectively, the lamp pearl install in the mounting hole, just the luminous side orientation of lamp pearl the light-emitting window sets up, the volume in reflection chamber certainly the mounting hole to the direction of light-emitting window is the setting of gradually expanding.
2. The illumination assembly of claim 1 wherein the reflective wall is an arcuate wall and the reflective wall protrudes out of the reflective cavity; or, the reflecting wall is an inclined wall, and the reflecting wall is arranged obliquely towards the outside of the reflecting cavity.
3. The lighting assembly of claim 1 further comprising a lens, wherein the lens is disposed over the bead and within the reflective cavity.
4. The illumination assembly of claim 1, wherein the number of the reflective walls is four, the light outlet is rectangular, and the mounting hole is circular or rectangular.
5. The illumination assembly of any of claims 1-4 wherein the reflector sheet is an integrally formed piece of PET material.
6. A backlight module comprising a housing, a diffusion plate and the light emitting element as claimed in any one of claims 1 to 5, wherein a mounting cavity is formed in the housing, the mounting cavity has an opening, the diffusion plate covers the opening, the light emitting element is plural in number, a plurality of the light emitting elements are arrayed in the mounting cavity, and the light outlet of the reflection sheet is disposed toward the diffusion plate.
7. The backlight module according to claim 6, wherein the housing comprises a substrate and a side plate surrounding the substrate, the substrate and the side plate define the mounting cavity therebetween, and the plurality of light emitting assemblies are arranged on the substrate in an array.
8. The backlight module as claimed in claim 7, wherein the distance between the substrate and the diffusion plate is 3mm to 40 mm; in the plurality of light-emitting components, the distance between any two adjacent lamp beads is 5.3-100.5 mm.
9. The backlight module as claimed in claim 6, wherein the backlight module further comprises an optical film set stacked on a side of the diffuser plate facing away from the mounting cavity.
10. A display device, characterized in that it comprises a backlight module according to any one of claims 6-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210393388.0A CN114779526A (en) | 2022-04-14 | 2022-04-14 | Light-emitting component, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210393388.0A CN114779526A (en) | 2022-04-14 | 2022-04-14 | Light-emitting component, backlight module and display device |
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| Publication Number | Publication Date |
|---|---|
| CN114779526A true CN114779526A (en) | 2022-07-22 |
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| CN202210393388.0A Pending CN114779526A (en) | 2022-04-14 | 2022-04-14 | Light-emitting component, backlight module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115826293A (en) * | 2022-12-07 | 2023-03-21 | 上海天马微电子有限公司 | Backlight module and display device |
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