CN114973927A - Backlight module and display - Google Patents
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- CN114973927A CN114973927A CN202210647138.5A CN202210647138A CN114973927A CN 114973927 A CN114973927 A CN 114973927A CN 202210647138 A CN202210647138 A CN 202210647138A CN 114973927 A CN114973927 A CN 114973927A
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- 230000005284 excitation Effects 0.000 claims abstract description 28
- 238000009792 diffusion process Methods 0.000 claims abstract description 20
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 9
- 230000007423 decrease Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 239000002096 quantum dot Substances 0.000 description 14
- 239000000758 substrate Substances 0.000 description 9
- 239000011324 bead Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- 239000004065 semiconductor Substances 0.000 description 1
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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Abstract
The invention discloses a backlight module and a display, wherein the backlight module comprises a reflector plate, a diffusion plate, an excitation light source, a green light quantum film and a red light body; the excitation light source penetrates through the reflecting sheet; the excitation light source is used for emitting blue light; the diffusion plate is positioned on one side of the reflection sheet; the green light quantum film is arranged on one side of the diffusion plate, which is far away from the reflector plate; a light path is arranged from the laser source to one side of the green light quantum film away from the diffusion plate; the red light body is arranged on the light path. According to the technical scheme, the green light quantum film and the red light body are separately arranged, and the red light body is arranged on a light path, so that the phenomenon that green light emitted after the green light quantum film is excited is absorbed by the red light body, and self absorption is avoided; the green light emitted by the green light quantum film can not be absorbed by the red light body, and the overall luminous efficiency of the backlight module is improved.
Description
Technical Field
The invention relates to the field of display devices, in particular to a backlight module and a display.
Background
The color gamut parameters of the product are always concerned elements of the display screen, the quantum dots are widely applied due to natural color gamut advantages, and the color gamut value of NTSC1931 (color gamut standard of NTSC, American national television standards Committee; 1931, CIE1931XYZ color space) can reach 100-105%, so that the effect of high color gamut and high quality is achieved. Quantum dots are tiny semiconductor particles that emit light with a narrow spectral shape and a wavelength that depends on their size. These two properties make quantum dots ideal materials for displays. Quantum dots can provide a greater range of pure colors than other light emitting technologies of the display. Because quantum dots have the advantage of high color gamut, an excitation light source is generally adopted to match with a quantum dot diaphragm, so that a display can reproduce larger color gamut; however, in practical use, it is found that the luminous efficiency of the backlight module inside the display screen manufactured by using the quantum dots is reduced.
Disclosure of Invention
The present invention is directed to a backlight module, and aims to solve the problem of low light emitting efficiency of a backlight module in the prior art.
To achieve the above object, the present invention provides a backlight module, including:
a reflective sheet;
the excitation light source penetrates through the reflecting sheet; the excitation light source is used for emitting blue light;
a diffusion plate positioned at one side of the reflection sheet;
the green light quantum film is arranged on one side of the diffusion plate, which is far away from the reflector plate;
the laser light source is arranged on one side, away from the diffusion plate, of the green light quantum film, and a light path is formed between the laser light source and the diffusion plate; the red light body is arranged on the light path.
Preferably, the red light body includes a red light quantum film disposed between the green light quantum film and the diffusion plate.
Preferably, the backlight module further comprises a reflective film, and the reflective film is arranged between the red light quantum film and the green light quantum film; the reflecting film is used for reflecting the green light emitted by the green light quantum film.
Preferably, the reflective film comprises a plurality of sub-film layers including a first refractive layer and a second refractive layer; the first refraction layer and the second refraction layer are alternately stacked; the first refraction layer and the second refraction layer of the reflection film are alternately stacked; the first refraction layer is arranged on one side, attached to the green light quantum film, of the reflection film and on one side, attached to the red light quantum film, of the reflection film; the refractive index of the first refractive layer is greater than the refractive index of the second refractive layer.
Preferably, the sub-film layer is used for reflecting green light with the wavelength length of lambda, and the lambda value is any value between 500nm and 600 nm.
Preferably, the thickness of the first refractive layer decreases as the refractive index of the first refractive layer increases; the thickness of the second refractive layer decreases as the refractive index of the second refractive layer increases.
Preferably, the red light body includes a phosphor attached to the excitation light source or the green light quantum film.
Preferably, the phosphor is encapsulated on the outer surface of the excitation light source, or the phosphor is encapsulated on the outer surface of the green light quantum film.
Preferably, the green light quantum film comprises green light quantum powder, and the phosphor and the green light quantum powder are packaged in the green light quantum film.
The invention also provides a display which comprises the backlight module.
According to the technical scheme, the green light quantum film and the red light body are separately arranged, so that the green light emitted after the green light quantum film is excited is prevented from being absorbed by the red light body, and the phenomenon of self absorption cannot be generated; the blue light emitted by the excitation light source is uniformly diffused under the action of the reflecting sheet and the diffusion plate; the blue light excites the red luminophor to emit red light, and the red light emitted by the red luminophor can not be absorbed by the green light quantum film, so that the luminous efficiency of the red luminophor can not be reduced; the red light body is arranged on the light path, green light emitted by the green light quantum film is directly emitted out of the backlight module without passing through the red light body, and the green light emitted by the green light quantum film is not absorbed by the red light body, so that the luminous efficiency of the green light quantum film is not reduced; the overall luminous efficiency of the backlight module is improved, and further the brightness is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the invention.
Fig. 2 is a schematic structural view of the reflective film of fig. 1.
FIG. 3 is a schematic structural diagram of a backlight module according to another embodiment of the invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a backlight module.
Example one
Referring to fig. 1 to 2, in an embodiment of the present invention, the backlight module 100 includes a reflector 4, a diffuser 5, an excitation light source 1, a green quantum film 2, and a red light body 3; the excitation light source 1 penetrates through the reflecting sheet 4; the excitation light source 1 is used for emitting blue light; the diffusion plate 5 is positioned at one side of the reflection sheet 4; the green light quantum film 2 is arranged on one side of the diffusion plate 5 far away from the reflector plate 4; light ray paths are arranged on one sides, far away from the diffusion plate 5, of the laser light sources 1 to the green light quantum films 2; the red-light body 3 is arranged on the light path.
The traditional quantum dots encapsulate the red quantum dots and the green quantum dots in the same resin, so that the phenomenon of self-absorption occurs. In the structure, the green light quantum film 2 and the red light body 3 are separately arranged, so that the red light body 3 prevents green light emitted after the green light quantum film 2 is excited from being absorbed by the red light body 3, and the phenomenon of self-absorption cannot be generated; the blue light emitted by the excitation light source 1 is uniformly diffused under the action of the reflecting sheet 4 and the diffusion plate 5; red light emitted from blue light-excited red phosphor 3 is not absorbed by green quantum film 2, and thus the luminous efficiency of red phosphor 3 is not decreased; the red luminophor 3 is arranged on the light path, green light emitted by the green light quantum film 2 is directly emitted out of the backlight module 100 without passing through the red luminophor 3, and the green light emitted by the green light quantum film 2 is not absorbed by the red luminophor 3, so that the luminous efficiency of the green light quantum film 2 is not reduced; the overall light emitting efficiency of the backlight module 100 is improved, thereby improving the brightness.
The red light body 3 includes a red light quantum film disposed between the green light quantum film 2 and the diffusion plate 5. Under the prerequisite of still adopting the scheme that the blue light arouses red quantum dot and green quantum dot, set up ruddiness quantum film between green glow quantum film 2 and diffuser plate 5, under the prerequisite of guaranteeing that the blue light can arouse red glow quantum film and green glow quantum film 2, avoid the green glow that green glow quantum film 2 sent to be absorbed by red glow quantum film, improve backlight unit 100's output luminance.
The excitation light source 1 comprises a plurality of LED lamp beads. The LED (light emitting diode) lamp bead is used as an excitation light source 1, and compared with the traditional CCFL (cold cathode tube) lamp bead, the LED lamp bead has the characteristics of low energy consumption, low heat productivity, high brightness, long service life and the like.
The backlight module 100 further comprises a back plate 6, a circuit board 7 and an outer optical protection diaphragm 8, wherein the back plate 6 is provided with a cavity, the circuit board 7 is arranged in the cavity, the excitation light source 1 is arranged on the circuit board 7, and the excitation light source 1 is electrically connected with the circuit board 7; the reflecting sheet 4 is arranged above the circuit board 7, and the excitation light source 1 penetrates through the reflecting sheet 4; the green light quantum film 2 and the red light quantum film are arranged at the opening of the cavity, and the outer optical protection film 8 is arranged above the green light quantum film 2. In the structure, the circuit board 7 is used for supplying power to the excitation light source 1 after being connected with an external circuit; the outer optical protective film 8 includes a prism sheet having a function of protecting the green light quantum film 2.
The backlight module 100 further comprises a plurality of supporting members 9, the supporting members 9 are disposed in the cavity, the lower end of each supporting member 9 is fixedly connected with the reflector plate 4, and the other end of each supporting member 9 extends to the opening of the cavity. In the above structure, the supporting member 9 has an effect of increasing the internal supporting strength of the backlight module 100, and reduces the probability of the backlight module 100 being bent.
The backlight module 100 further comprises a reflective film 11, wherein the reflective film 11 is disposed between the red light quantum film and the green light quantum film 2; the reflecting film 11 is used for reflecting the green light emitted by the green light quantum film 2.
In the above structure, the reflection film 11 can reflect the green light and transmit the blue light, the blue light emitted by the excitation light source 1 is not affected to be emitted to the red light quantum film and the green light quantum film 2, and the reflection film 11 is utilized to reflect the green light emitted by the green light quantum film 2 to the red light quantum film side, so as to increase the brightness of the green light, and further improve the output brightness of the backlight module 100.
The reflective film 11 includes a plurality of sub-film layers 110, and the sub-film layers 110 include a first refractive layer 111 and a second refractive layer 112; the first refraction layer 111 and the second refraction layer 112 are alternately stacked; the first refraction layer 111 and the second refraction layer 112 in the reflection film 1 are alternately stacked; the first refraction layer 111 is arranged on one side of the reflection film 11, which is attached to the green light quantum film, and on one side of the reflection film 11, which is attached to the red light quantum film; the reflective film 11 further includes a film substrate 113, and the film substrate 113 is located on one side of the reflective film 11 close to the diffuser plate 5.
In the above structure, a plurality of sub-film layers 110 are sequentially stacked, wherein the first refractive layer 111 and the second refractive layer 112 of one sub-film layer 110 are colloid-stacked with the first refractive layer 111 and the second refractive layer 112 of another sub-film layer 110; the outer surface of the reflective film 11 is a first refractive layer 111. That is, in the reflective film 11, the first refractive layer 111 and the second refractive layer 112 are laminated in the order of the first refractive layer 111, the second refractive layer 112, the first refractive layer 111, the second refractive layer 112 … …, the first refractive layer 111, the second refractive layer 112, and the first refractive layer 111. Therefore, if the first refractive layer 111 is H, the second refractive layer 112 is L, and the film substrate 113 is G, the first refractive layer 111, the second refractive layer 112, and the film substrate 113 in the reflective film 11 are arranged in the sequence ghlhl p HA, where p ═ 1,2,3 … … n.
The larger the difference in refractive index between the first and second refractive layers 111 and 112 is, the higher the reflectance of the reflective film 11 is; the reflectance ρ of the reflective film 11 is calculated by the formula:
ρ＝{[n-(nH/nL)^ p *nH^/nG]/[n+(nH/nL)^ p *nH^/nG]}^ 2 ；
where ρ is a reflectance of the reflective film 11, n is a refractive index of air, nH is a refractive index of the first reflective layer, nL is a refractive index of the second refractive layer 112, nG is a refractive index of the film substrate 113, and P is the number of layers of the first and second refractive layers 111 and 112.
The total number of the first refractive layer 111 and the second refractive layer 112 in the reflective film 11 is 2p, where p is 1,2,3.. n; the larger the difference between nH and nL is, the larger the value of 2p is, and the larger the reflectance of the reflective film 11 is.
When the refractive index n0 of the air is 1, if the refractive index nH of the first reflective layer is 1.7, the refractive index nL of the second reflective layer is 1.5, and the refractive index nG of the film substrate 113 is 1.4, as shown in the following table:
| n0 | | nL | nG | |
| 1 | 1.7 | 1.5 | 1.4 |
it can be calculated that as the total number of layers increases, the numerical value of the reflectance of the reflection film 11 increases, and the calculation results are shown in the following table:
the sub-film layer is used for reflecting green light with the wavelength length of lambda, and the lambda value is any value between 500nm and 600 nm; the thickness of the first refractive layer decreases as the refractive index of the first refractive layer increases; the thickness of the second refractive layer decreases as the refractive index of the second refractive layer increases; in addition, the thickness calculation formulas of the first refractive layer 111 and the second refractive layer 112 are respectively:
D1＝1/4*λ/nH；
D2＝1/4*λ/nL；
wherein D1 is the thickness of the first refractive layer 111; d2 is the thickness of the second refraction layer 112, λ is the wavelength of the incident green light, and λ is more than or equal to 500 and less than or equal to 600; nH is the refractive index of the first reflective layer, and nL is the refractive index of the second refractive layer 112. In the above structure, the reflective film 11 needs to reflect green light with a wavelength range of 500nm to 600nm, so that for wavelengths of 500nm to 600nm, one first refractive layer 111 and one second refractive layer 112 form one sub-film layer 110 reflecting a fixed wavelength every 10nm wavelength value, a plurality of sub-film layers 110 form one sub-film layer 110 system, and one sub-film layer 110 system can reflect green light between 500nm and 600 nm. Note that by adjusting the thicknesses of the first refractive layer 111 and the second refractive layer 112, the wavelength which can be refracted by the sub-film layer 110 can be adjusted.
The thickness of the first refractive layer 111 is D1 and the thickness of the second refractive layer 112 is D2 according to different wavelength values as shown in the following table:
in addition, the reflective film 11 is formed by integrally bonding the plurality of sub-film layers 110, and the larger the number of the plurality of sub-film layers 110, the higher the reflectance of the reflective film 11. The number of layers of the first refractive layer 111 and the second refractive layer 112 of each sublayer 110 system may be determined according to the selected refractive index, and when the refractive index n0 of air is 1, if the refractive index nH of the first reflective layer is 1.7, the refractive index nL of the second reflective layer is 1.5, and the refractive index nG of the layer substrate 113 is 1.4; when the system of the sub-film layers 110 reaches 47 layers, the reflectance of the reflective film 11 is already as high as 99.3897476%. The total number of layers of the first and second refractive layers 111 and 112 in the layers of the reflective film 11 is 11 × 47 — 517 layers in total for 11 wavelength values.
In addition, if the difference between the refractive indexes of the first and second refractive layers 111 and 112 is large and the same reflectance needs to be obtained, the number of the sub-film layers 110 is reduced, and the total number of layers is also reduced.
Example two
This embodiment is substantially the same as the first embodiment, except that the red phosphor 3 includes a phosphor attached to the excitation light source 1 or the green quantum film 2.
Referring to fig. 3, the phosphor is made of a KSF red phosphor (also called narrow-band emission red phosphor) material, which is a manganese-element luminescent phosphor material, and the KSF red phosphor has almost no absorption in a green light band of 500-560 nm, has a narrow emission spectrum, and has the same color gamut expression as that of a red quantum dot under the condition of the same emission peak. Therefore, on the premise of not influencing the color gamut range, the luminous efficiency of the quantum dot backlight source module can be improved, and the whole luminous brightness is improved. The KSF is a model of red phosphor.
The phosphor is encapsulated on the outer surface of the excitation light source 1. Similarly, the phosphor is made of a KSF red phosphor (also called narrow-band emission red), and the KSF red phosphor is granular and therefore needs to be packaged, the excitation light source 11 generally adopts LED lamp beads, and the LED lamp beads are generally packaged by resin, so that the KSF red phosphor and the LED lamp beads are packaged together in the resin, and the production is facilitated. The phosphor is encapsulated on the outer surface of the green light quantum film 2. The KSF red fluorescent powder hardly absorbs in a green light wave band of 500-560 nm, so that the fluorescent body is packaged on the outer surface of the green light quantum film 2, and the luminous efficiency of the green light quantum film 2 cannot be reduced.
The green light quantum film 2 comprises green light quantum powder, and the phosphor and the green light quantum powder are packaged in the green light quantum film 2. The phosphor adopts KSF red phosphor (also called narrow-band emission red phosphor) material, and the green quantum powder is generally prepared into solution and then coated on the substrate by the green quantum film 2, so the KSF red phosphor and the green quantum powder are mixed and then prepared into solution and coated on the substrate, and the production is more convenient.
According to the technical scheme, the green light quantum film 2 and the red light body 3 are separately arranged, so that the red light body 3 prevents green light emitted after the green light quantum film 2 is excited from being absorbed by the red light body 3, and the phenomenon of self-absorption cannot be generated; the blue light emitted by the excitation light source 1 is uniformly diffused under the action of the reflecting sheet 4 and the diffusion plate 5; red light emitted from the blue light-excited red light-emitting body 3 is not absorbed by the green light quantum film 2, and thus the light-emitting efficiency of the red light-emitting body 3 is not reduced; the red luminophor 3 is arranged on the light path, green light emitted by the green light quantum film 2 is directly emitted out of the backlight module 100 without passing through the red luminophor 3, and the green light emitted by the green light quantum film 2 is not absorbed by the red luminophor 3, so that the luminous efficiency of the green light quantum film 2 is not reduced; the overall light emitting efficiency of the backlight module 100 is improved, thereby improving the brightness.
The present invention further provides a display, which includes the backlight module 100, and the specific structure of the backlight module 100 refers to the above embodiments, and since the display employs all the technical solutions of all the above embodiments, the display at least has all the 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 backlight module, comprising:
a reflective sheet;
the excitation light source penetrates through the reflecting sheet; the excitation light source is used for emitting blue light;
a diffusion plate positioned at one side of the reflection sheet;
the green light quantum film is arranged on one side of the diffusion plate, which is far away from the reflector plate;
the laser light source is arranged on one side, away from the diffusion plate, of the green light quantum film, and a light path is formed between the laser light source and the diffusion plate; the red light body is arranged on the light path.
2. The backlight module of claim 1, wherein the red light emitter comprises a red light quantum film disposed between the green light quantum film and the diffuser plate.
3. The backlight module of claim 2, further comprising a reflective film disposed between the red quantum film and the green quantum film; the reflecting film is used for reflecting the green light emitted by the green light quantum film.
4. The backlight module of claim 3, wherein the reflective film comprises a plurality of sub-film layers, the sub-film layers comprising a first refractive layer and a second refractive layer; the first refraction layer and the second refraction layer of the reflection film are alternately stacked; the first refraction layer is arranged on one side, attached to the green light quantum film, of the reflection film and on one side, attached to the red light quantum film, of the reflection film; the refractive index of the first refractive layer is greater than the refractive index of the second refractive layer.
5. The backlight module as claimed in claim 4, wherein the sub-film layer is used for reflecting green light with a wavelength length ranging from 500nm to 600 nm.
6. The backlight module according to claim 4, wherein the thickness of the first refractive layer decreases as the refractive index of the material of the first refractive layer increases; the thickness of the second refractive layer decreases as the refractive index of the material of the second refractive layer increases.
7. The backlight module of claim 1, wherein the red phosphor comprises a phosphor attached to the excitation light source or the green quantum film.
8. The backlight module according to claim 7, wherein the phosphor is encapsulated on an outer surface of the excitation light source; or
The phosphor is encapsulated on the outer surface of the green light quantum film.
9. The backlight module of claim 7, wherein the green quantum film comprises green quantum powder, and the phosphor and the green quantum powder are encapsulated inside the green quantum film.
10. A display comprising a backlight module according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210647138.5A CN114973927A (en) | 2022-06-09 | 2022-06-09 | Backlight module and display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210647138.5A CN114973927A (en) | 2022-06-09 | 2022-06-09 | Backlight module and display |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203404682U (en) * | 2013-08-27 | 2014-01-22 | 深圳Tcl新技术有限公司 | Backlight module and liquid crystal display device |
| CN104698680A (en) * | 2015-03-11 | 2015-06-10 | 青岛海信电器股份有限公司 | Module and display equipment |
| CN207799291U (en) * | 2018-01-18 | 2018-08-31 | 武汉保丽量彩科技有限公司 | A kind of high colour gamut illuminating module |
| CN112130379A (en) * | 2020-10-30 | 2020-12-25 | 深圳Tcl新技术有限公司 | Quantum dot diaphragm, backlight unit and display |
| CN214751228U (en) * | 2021-03-31 | 2021-11-16 | 广州视源电子科技股份有限公司 | Backlight module and display device |
| CN114114754A (en) * | 2021-12-01 | 2022-03-01 | 深圳创维－Rgb电子有限公司 | Quantum dot backlight module and television |
-
2022
- 2022-06-09 CN CN202210647138.5A patent/CN114973927A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203404682U (en) * | 2013-08-27 | 2014-01-22 | 深圳Tcl新技术有限公司 | Backlight module and liquid crystal display device |
| CN104698680A (en) * | 2015-03-11 | 2015-06-10 | 青岛海信电器股份有限公司 | Module and display equipment |
| CN207799291U (en) * | 2018-01-18 | 2018-08-31 | 武汉保丽量彩科技有限公司 | A kind of high colour gamut illuminating module |
| CN112130379A (en) * | 2020-10-30 | 2020-12-25 | 深圳Tcl新技术有限公司 | Quantum dot diaphragm, backlight unit and display |
| CN214751228U (en) * | 2021-03-31 | 2021-11-16 | 广州视源电子科技股份有限公司 | Backlight module and display device |
| CN114114754A (en) * | 2021-12-01 | 2022-03-01 | 深圳创维－Rgb电子有限公司 | Quantum dot backlight module and television |
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