CN115755463A - Laser backlight module and display manufactured by using same - Google Patents
Laser backlight module and display manufactured by using same Download PDFInfo
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- CN115755463A CN115755463A CN202211401989.8A CN202211401989A CN115755463A CN 115755463 A CN115755463 A CN 115755463A CN 202211401989 A CN202211401989 A CN 202211401989A CN 115755463 A CN115755463 A CN 115755463A
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Images
Abstract
A laser backlight module comprises: a substrate; the nanocrystalline microspheres with at least one color are integrated on the substrate, and the nanocrystalline microspheres with each color excite monochromatic laser under the action of pump light; the nanocrystalline microspheres with at least one color excite laser with at least one color under the action of pump light, and the laser with at least one color is used as a backlight source of the display panel. The invention also discloses a preparation method of the laser backlight module and a display manufactured by using the laser backlight module.
Description
Technical Field
At least one embodiment of the present invention relates to a backlight module, and more particularly, to a laser backlight module and a display manufactured by using the same.
Background
In recent years, a flat panel display technology based on a liquid crystal display technology has been developed, in which a backlight module is used as a sole light source in a liquid crystal display device, and the light emitting performance of the backlight module directly affects the final display effect of the liquid crystal display device. At present, the mainstream backlight module is generally made by combining a blue light LED light source with fluorescent powder, the display method is simpler, but the dependence degree of the fluorescent property of the fluorescent powder is higher; for example, rare earth Yttrium Aluminum Garnet (YAG) phosphors fluoresce yellowish under excitation by blue light, and the blue and yellow light combine to produce white light, which overall lacks intensity in the red band.
Recently, backlight modules based on quantum dot fluorescence have attracted a wide interest. Due to high fluorescence quantum yield and narrow fluorescence line width, quantum dot fluorescence as a backlight light source can provide high color saturation and high color purity. The current quantum dot backlight can cover color gamut space Standards such as Adobe RGB and NTSC (National Television Standards Committee), and is gradually becoming a new generation of display backlight.
However, as the level of display hardware and the living standard increase, consumers have higher standards for the color rendition of display devices. Taking BT.2020 as an example of the color gamut standard of a 4K/8K display device with resolution as an example, the standard adopts a color gamut space wider than that of the traditional Adobe RGB, NTSC and BT.709 standards, and the color gamut coverage area of the standard is far larger than that of the traditional standards, so that the standard has higher color reproduction degree and is known as the next generation display standard. Meanwhile, the performance requirement of the display device is higher due to the high color gamut, and the bt.2020 standard can be met only by adopting laser as a backlight light source at present.
At present, mainstream laser display equipment mainly adopts a laser projection technology, namely red, green and blue lasers are packaged together in a physical splicing mode and then are projected to a screen in a short-focus imaging mode.
Disclosure of Invention
In view of this, the present invention provides a laser backlight module and a display manufactured by using the same, in which nanocrystalline microspheres with at least one color are integrated on a substrate, the nanocrystalline microspheres with at least one color excite laser with at least one color under the action of pump light, and the laser with at least one color is used as a backlight source of a display panel to implement laser backlight display.
The invention provides a laser backlight module, comprising: a substrate; the nanocrystalline microspheres with at least one color are integrated on the substrate, and the nanocrystalline microspheres with each color excite monochromatic laser under the action of pump light; the nanocrystalline microspheres with at least one color excite laser with at least one color under the action of pump light, and the laser with at least one color is used as a backlight source of the display panel.
The invention also provides a preparation method of the laser backlight module, which is suitable for preparing the laser backlight module and comprises the following steps: providing a nanocrystalline microsphere solution having at least one color; mixing the nanocrystalline microsphere solution with at least one color to obtain a mixed solution; standing or centrifuging the mixed solution, discarding supernatant, and retaining precipitate; adding a second polar solvent into the precipitate to disperse the precipitate in the second polar solvent to obtain a solution in which the nanocrystalline microspheres with at least one color are suspended; transferring the solution in which the nano-crystalline microspheres with at least one color are suspended onto a substrate to integrate the nano-crystalline microspheres with at least one color on the substrate.
The present invention also provides a display comprising: a display panel adapted to display an image; the prepared laser backlight module is suitable for exciting laser with at least one color under the action of pump light so as to provide backlight for a display panel; a long-wavelength pass filter, adapted to filter the pump light; a light guide plate adapted to couple at least one color of laser light; and the diffusion plate is suitable for diffusing the laser of at least one color coupled by the light guide plate to the display panel.
According to the laser backlight module provided by the embodiment of the invention, the nanocrystalline microspheres with at least one color are integrated on the substrate, the nanocrystalline microspheres with at least one color excite at least one color of laser under the action of the pump light, and the laser with at least one color is used as the backlight source of the display panel to realize laser backlight display of the display.
Drawings
Fig. 1 is a schematic flow chart illustrating a method for manufacturing a laser backlight module according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an assembly process of a nanocrystal microsphere according to an embodiment of the invention;
fig. 3 is a diagram of a mixed non-polar solvent with quantum dot nanocrystals dissolved therein and a first polar solvent according to an embodiment of the present invention;
FIG. 4 is an optical microscope image of an assembly process of nanocrystalline microspheres according to an embodiment of the invention;
FIG. 5 is a schematic diagram of luminescence of a nanocrystal microsphere according to an embodiment of the invention;
FIG. 6 is a laser spectrum of the laser backlight module according to the embodiment of the invention;
FIG. 7 is an exploded view of a display according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a laser backlight module according to an embodiment of the present invention as a white light laser backlight source;
FIG. 9 is a diagram of display effects of a white laser backlight according to an embodiment of the invention; and
fig. 10 is a schematic view of the red, green and blue three-color nano-crystalline microspheres and the combination thereof according to the embodiment of the invention.
[ description of reference ]
1-laser backlight module;
2-long wave pass filter;
3-a light guide plate;
4-a diffusion plate;
5-display panel.
Detailed Description
In order that the objects, technical solutions and advantages of the present invention will become more apparent, the present invention will be further described in detail with reference to the accompanying drawings in conjunction with the following specific embodiments. This invention may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity, and like reference numerals designate like elements throughout.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.
According to an exemplary embodiment of the present invention, there is provided a laser backlight module including: a substrate; the nanocrystalline microspheres with at least one color are integrated on the substrate, and the nanocrystalline microspheres with each color excite monochromatic laser under the action of pump light; the nanocrystalline microspheres with at least one color excite laser with at least one color under the action of pump light, and the laser with at least one color is used as a backlight source of the display panel.
According to embodiments of the present invention, the substrate is a rigid substrate or a flexible substrate, and the surface of the substrate may be smooth or rough, for example, the substrate includes but is not limited to quartz, glass, plexiglass, plastic, polyimide.
According to an embodiment of the present invention, the nanocrystalline microspheres with at least one color comprise at least one of: red nanocrystalline microspheres, orange nanocrystalline microspheres, yellow nanocrystalline microspheres, green nanocrystalline microspheres, cyan nanocrystalline microspheres, blue nanocrystalline microspheres, and purple nanocrystalline microspheres. The nanocrystalline microspheres with at least one color excite laser with at least one color under the action of pump light, the laser with at least one color represents at least one monochromatic light source, and the monochromatic light source comprises one of the following components: red, orange, yellow, green, cyan, blue, violet.
It should be noted that the nanocrystal microspheres integrated on the substrate receive the pump light generated by the pump source and then generate radiation to generate photons, the photons oscillate in the nanocrystal microspheres to make the nanocrystal microspheres output laser, and the nanocrystal microspheres of each color excite monochromatic laser under the action of the pump light.
According to an embodiment of the present invention, the nanocrystalline microspheres with at least one color comprise red nanocrystalline microspheres, green nanocrystalline microspheres, blue nanocrystalline microspheres; the red nanocrystalline microspheres, the green nanocrystalline microspheres and the blue nanocrystalline microspheres are used as a white laser backlight source for display of the display panel under the action of pump light. Specifically, the red nanocrystalline microspheres excite red laser under the action of pump light, the blue nanocrystalline microspheres excite blue laser under the action of the pump light, the green nanocrystalline microspheres excite green laser under the action of the pump light, namely, the red, green and blue nanocrystalline microspheres excite red, green and blue laser under the action of the pump light, and the red, green and blue laser combination outputs white laser as a white laser backlight source of the display panel.
According to an embodiment of the present invention, the nanocrystalline microspheres having at least one color are formed from group II-VI quantum dot nanocrystals, group IV-VI quantum dot nanocrystals, or perovskite quantum dot nanocrystals.
Fig. 1 is a schematic flow chart illustrating a method for manufacturing a laser backlight module according to an embodiment of the invention.
According to an exemplary embodiment of the present invention, the present invention further provides a method for manufacturing a laser backlight module, which is suitable for manufacturing the laser backlight module, and as shown in fig. 1, the method includes: step S01 to step S05.
And step S01, providing a nanocrystalline microsphere solution with at least one color.
Fig. 2 is a schematic view illustrating an assembly process of nanocrystalline microspheres according to an embodiment of the present invention. Fig. 3 is a diagram of a mixed non-polar solvent with quantum dot nanocrystals dissolved therein and a first polar solvent according to an embodiment of the invention.
As shown in fig. 3, the n-hexane solution of the red, green and blue three-color quantum dot nanocrystals is mixed with DMF sequentially from left to right, and when the n-hexane is mixed with DMF, the mixed solution is layered due to polarity difference.
Fig. 4 is an optical microscope image of an assembly process of nanocrystalline microspheres according to an embodiment of the invention. Wherein the dashed line frame marked by the same letter in fig. 4 represents different shapes of the same droplet in the assembling process.
According to an embodiment of the present invention, referring to fig. 2 and 4, providing a nano-crystalline microsphere solution with at least one color comprises: referring to diagram (a) in fig. 2, the quantum dot nanocrystals can be dissolved in a non-polar solvent, and when the non-polar solvent is mixed with a first polar solvent, the mixed solution is layered due to a large polarity difference between the non-polar solvent and the first polar solvent, the non-polar solvent where the quantum dot nanocrystals are located is on the upper layer, and the first polar solvent is on the lower layer. Referring to diagram (b) in fig. 2, quantum dot nanocrystals of at least one color are respectively dissolved in a non-polar solvent, and then a first polar solvent is respectively added, and the non-polar solvent and the first polar solvent are fully mixed by stirring. Liquid-liquid interfacial tension exists between the nonpolar solvent and the first polar solvent, so that the nonpolar solvent forms spherical liquid drops in the first polar solvent. The nonpolar solvent in the spherical liquid drop is evaporated, so that the quantum dot nano-crystal is filled in the spherical liquid drop to form the nano-crystal microsphere solution, as shown in the graph (c) and the graph (d) in fig. 2.
According to an embodiment of the present invention, the quantum dot nanocrystal includes one of: II-VI group quantum dot nanocrystals, IV-VI group quantum dot nanocrystals, perovskite quantum dot nanocrystals. The II-VI group quantum dot nanocrystal can be, for example, a CdSe system quantum dot nanocrystal, the IV-VI group quantum dot nanocrystal can be, for example, a PbS quantum dot nanocrystal, a perovskite quantum dot nanocrystal ABX 3 (X = Cl, br, I) may be CsPbX, for example 3 . It should be noted that the concentration of the quantum dot nanocrystals is not limited herein.
The quantum dot nanocrystals are oil-soluble nanocrystals and can be dissolved in a nonpolar solvent.
According to an embodiment of the present invention, the non-polar solvent is not limited herein, and may include one or more of n-hexane, cyclohexane, n-octane, n-heptane, and toluene, for example. The volume of the nonpolar solvent is not limited, and may be, for example, 10. Mu.L, 20. Mu.L, 50. Mu.L, or 100. Mu.L.
According to an embodiment of the present invention, the first polar solvent is not limited herein, and may include, for example, one or more of water, acetonitrile, methanol, dimethylsulfoxide (DMSO), N-Dimethylformamide (DMF). Note that the volume of the first polar solvent is not limited herein, and for example, the volume of the first polar solvent may be 2 times or 2.5 times that of the nonpolar solvent.
It should be noted that the quantum dot nanocrystals with at least one color can be mixed with the non-polar solvent in any vessel, including but not limited to glass bottles, organic polymer centrifuge tubes, paper beakers, and plastic culture dishes.
And S02, mixing the nanocrystalline microsphere solution with at least one color to obtain a mixed solution.
According to an embodiment of the present invention, the nanocrystal microsphere solutions with at least one color are mixed, for example, 1, 2, 3 or 4 different color nanocrystal microsphere solutions may be mixed to obtain a mixed solution.
And S03, standing or centrifuging the mixed solution, discarding supernatant, and keeping precipitate.
The time of the standing treatment is not limited, and the mixed solution may be allowed to precipitate, and for example, the standing treatment may be performed for 10 minutes, 1 hour, or 1 day.
And S04, adding a second polar solvent into the precipitate to obtain a solution in which the nanocrystalline microspheres with at least one color are suspended.
According to an embodiment of the present invention, a second polar solvent is added to the precipitate, and the precipitate is dispersed in the second polar solvent to obtain a solution in which the nano-crystalline microspheres with at least one color are suspended, wherein the method for dispersing the precipitate in the second polar solvent comprises ultrasonic or shaking. The second polar solvent is not limited herein and may include, for example, one or a mixture of more of water, acetonitrile, alcoholic solvents (e.g., ethanol), dimethylsulfoxide (DMSO), N-Dimethylformamide (DMF). The volume of the second polar solvent is not limited herein, and may be, for example, 100. Mu.L or 1mL.
And S05, transferring the solution in which the nano-crystalline microspheres with at least one color are suspended onto the substrate to integrate the nano-crystalline microspheres with at least one color on the substrate.
According to the embodiment of the invention, the nanocrystalline microspheres suspended with at least one color are transferred to the substrate, so that the nanocrystalline microspheres of at least one color are tightly integrated on the substrate, and the integrated nanocrystalline microspheres excite at least one color of laser under the action of pump light and serve as a backlight source for laser backlight display.
Fig. 5 is a schematic diagram of luminescence of a nanocrystal microsphere according to an embodiment of the invention.
According to the embodiment of the invention, the nanocrystalline microspheres of each color can generate photons under the excitation of the excitation light, and the photons generated by the nanocrystalline microspheres are bound in the nanocrystalline microspheres, so that the photons are coupled in the nanocrystalline microspheres in a vibration manner, thereby realizing light amplification and finally realizing the output of laser.
Fig. 6 is a laser spectrum diagram of the laser backlight module according to the embodiment of the invention.
According to the embodiment of the invention, the red, green and blue three-color nanocrystalline microspheres are integrated on the substrate, and as shown in fig. 6, the red, green and blue three-color nanocrystalline microspheres excite red, green and blue three-color laser under the action of the pumping light.
Fig. 7 is an exploded view of a display according to an embodiment of the invention.
According to an exemplary embodiment of the present invention, there is also provided a display, as shown in fig. 7, including: the laser backlight module 1 integrated with the nanocrystalline microspheres with at least one color, which is prepared in the above way, is suitable for exciting laser with at least one color under the action of pump light so as to provide backlight for the display panel 5; a long-wave pass filter 2 adapted to filter the pump light; a light guide plate 3 adapted to couple laser light of at least one color; a diffusion plate 4 adapted to diffuse the laser light of at least one color coupled by the light guide plate to the display panel; the display panel 5 is adapted to display an image. That is, the laser backlight module 1 integrated with the nano-crystalline microspheres with at least one color is used as a backlight source, and the emitted laser passes through the long-wave pass filter 2, the light guide plate 3 and the diffusion plate 4 and finally is projected onto the display panel 5. The display panel 5 may be, for example, a liquid crystal display panel.
Fig. 8 is a schematic view of the laser backlight module according to the embodiment of the invention as a white light laser backlight source.
According to the embodiment of the invention, the red, green and blue three-color nanocrystalline microspheres are integrated on the substrate, and the red, green and blue three-color nanocrystalline microspheres excite red, green and blue three-color laser under the action of the laser and serve as a white laser backlight source of the display panel shown in fig. 8.
Fig. 9 is a diagram illustrating a display effect of a white laser backlight according to an embodiment of the present invention.
According to the embodiment of the invention, the laser backlight module is prepared by utilizing the red, green and blue three-color nanocrystalline microspheres and is used as a white laser backlight source, so that a display panel can realize a good display effect.
Fig. 10 is a schematic view of the red, green and blue three-color nano-crystalline microspheres and the combination thereof according to the embodiment of the invention.
Referring to fig. 10, the combination of red, green and blue lasers can obtain lasers with different colors. Therefore, lasers with different colors can be obtained by adopting the nanocrystalline microspheres with different colors for integration, for example, the integrated nanocrystalline microspheres capable of emitting white lasers can be obtained by integrating red nanocrystalline microspheres, green nanocrystalline microspheres and blue nanocrystalline microspheres; integrating the blue nanocrystalline microspheres and the green nanocrystalline microspheres to obtain integrated nanocrystalline microspheres capable of emitting cyan laser; integrating the blue nanocrystalline microspheres and the red nanocrystalline microspheres to obtain integrated nanocrystalline microspheres capable of emitting purple laser; and integrating the green nanocrystalline microspheres and the red nanocrystalline microspheres to obtain the integrated nanocrystalline microspheres capable of emitting yellow laser.
According to the laser backlight module provided by the embodiment of the invention, the nanocrystalline microspheres with at least one color are integrated on the substrate, the nanocrystalline microspheres with at least one color excite at least one color of laser under the action of the pump light, and the laser with at least one color is used as the backlight source of the display panel to realize laser backlight display of the display.
According to the laser backlight module provided by the embodiment of the invention, the nanocrystalline microspheres with different colors are integrated on the substrate, so that laser backlight display with various colors can be realized.
The following schematically illustrates a process for forming a laser backlight module. It should be noted that the illustration is only a specific embodiment of the present invention, and does not limit the protection scope of the present invention.
Example 1
(1) 3mL glass bottles are prepared, 25 mu L of red, green and blue CdSe system colloid quantum dot nanocrystal n-hexane solution coated by organic oleylamine ligand is added respectively, and the concentration of the quantum dot nanocrystal solution is 50mg/mL. Then 100. Mu.L of DMF was added to each glass vial.
(2) The DMF and n-hexane were mixed well by shaking for 5 s. N-hexane tends to form spherical droplets in DMF due to liquid-liquid interfacial tension. With the volatilization of n-hexane, the quantum dot nanocrystals gradually fill n-hexane spherical droplets, and form solid microspheres completely filled with the quantum dot nanocrystals, as shown in fig. 2.
(3) Mixing the three colors of red, green and blue of nano-crystalline microsphere solution. Standing for 30 min until precipitation is complete, discarding the upper liquid, and only keeping precipitate. Adding 100 mu L of ethanol into the precipitate and carrying out ultrasonic treatment to completely disperse the nanocrystalline microspheres.
(4) And transferring the mixed microsphere solution obtained by mixing the red, green and blue nanocrystalline microsphere solutions into a glass slide, so that the integration of the red, green and blue nanocrystalline microspheres is realized. The red, green and blue integrated microspheres can be used as a white laser light source for realizing white laser backlight display under the excitation of high-energy excitation light, and are shown in reference to fig. 8.
Example 2
(1) 2mL centrifuge tubes are prepared, 50 mu L of cyclohexane solution of red and green colloid quantum dot nanocrystals wrapped by organic oleic acid ligand is respectively added, the concentration of the quantum dot nanocrystal solution is 25mg/mL, and 70 mu L of acetonitrile is added into each centrifuge tube.
(2) The acetonitrile and cyclohexane were mixed thoroughly by shaking for 5 seconds. Cyclohexane tends to form spherical droplets in acetonitrile due to liquid-liquid interfacial tension. Along with the volatilization of cyclohexane, the quantum dot nanocrystals are gradually filled in the spherical liquid drops, and finally the solid microspheres completely filled with the quantum dot nanocrystals are formed.
(3) The red and green two color nanocrystalline microsphere solutions were mixed thoroughly. After low speed centrifugation (2000 rpm ) the supernatant liquid was discarded leaving only the pellet. To the precipitate, 200. Mu.L of water was added and shaken to completely disperse the nanocrystalline microspheres.
(4) And completely mixing the red and green nanocrystalline microsphere solutions to obtain a nanocrystalline microsphere mixed solution, and transferring the nanocrystalline microsphere mixed solution onto paper to finish the integration of the red and green nanocrystalline microspheres. The integrated red and green nanocrystalline microspheres can be used as a yellow light source to realize yellow laser backlight display under the excitation of high-energy exciting light.
The use of ordinal numbers such as "first," "second," "third," etc., in the specification and claims to modify a corresponding element does not by itself connote any ordinal number of the element or any ordering of one element relative to another or relative to a method of manufacture, and is used merely to allow a given element having a certain name to be clearly distinguished from another element having a same name.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A laser backlight module is characterized by comprising:
a substrate;
the nanocrystalline microspheres with at least one color are integrated on the substrate, and the nanocrystalline microspheres with each color excite monochromatic laser under the action of pump light;
and exciting laser with at least one color by the nanocrystalline microspheres with at least one color under the action of the pump light, wherein the laser with at least one color is used as a backlight source of the display panel.
2. The laser backlight module as claimed in claim 1, wherein the nano-crystalline micro-spheres having at least one color comprise at least one of:
red nanocrystalline microspheres, orange nanocrystalline microspheres, yellow nanocrystalline microspheres, green nanocrystalline microspheres, cyan nanocrystalline microspheres, blue nanocrystalline microspheres, and purple nanocrystalline microspheres.
3. The laser backlight module as claimed in claim 1, wherein the at least one color of the nano-crystalline microspheres includes red, green and blue nano-crystalline microspheres;
the red nanocrystalline microspheres, the green nanocrystalline microspheres and the blue nanocrystalline microspheres are used as a white laser backlight source for display of the display panel under the action of the pump light.
4. The laser backlight module according to claim 1, wherein the nanocrystalline microsphere with at least one color is formed of a group II-VI quantum dot nanocrystal, a group IV-VI quantum dot nanocrystal, or a perovskite quantum dot nanocrystal.
5. A method for preparing a laser backlight module is suitable for preparing the laser backlight module as claimed in any one of claims 1 to 4, and comprises the following steps:
providing a nanocrystalline microsphere solution having at least one color;
mixing the nanocrystalline microsphere solution with at least one color to obtain a mixed solution;
standing or centrifuging the mixed solution, discarding supernatant, and retaining precipitate;
adding a second polar solvent into the precipitate to disperse the precipitate in the second polar solvent to obtain a solution in which nanocrystalline microspheres with at least one color are suspended;
transferring the solution in which the nanocrystalline microspheres with at least one color are suspended onto a substrate to integrate the nanocrystalline microspheres with at least one color on the substrate.
6. The method according to claim 5, wherein the nanocrystalline microsphere solution is formed in a manner that includes:
dissolving quantum dot nanocrystals in a nonpolar solvent, then adding a first polar solvent, and stirring to fully mix the nonpolar solvent and the first polar solvent;
liquid-liquid interfacial tension exists between the nonpolar solvent and the first polar solvent, so that the nonpolar solvent forms spherical liquid drops in the first polar solvent;
and evaporating the nonpolar solvent in the spherical liquid drops to enable the quantum dot nanocrystals to fill the spherical liquid drops to form a nanocrystal microsphere solution.
7. The method of claim 6, wherein the quantum dot nanocrystals comprise one of: II-VI group quantum dot nanocrystals, IV-VI group quantum dot nanocrystals, perovskite quantum dot nanocrystals.
8. The method of claim 5, wherein the second polar solvent comprises at least one of: water, acetonitrile, alcohol solvent, dimethyl sulfoxide and N, N-dimethylformamide.
9. The method of claim 6, wherein the non-polar solvent comprises at least one of: n-hexane, cyclohexane, n-octane, n-heptane, toluene;
the first polar solvent includes at least one of: water, acetonitrile, alcohol solvent, dimethyl sulfoxide and N, N-dimethylformamide.
10. A display, comprising:
a display panel (5) adapted to display an image;
the laser backlight module (1) according to any one of claims 1 to 4, adapted to excite at least one color laser under the action of the pump light to provide a backlight source for the display panel;
a long-wave pass filter (2) adapted to filter out said pump light;
a light guide plate (3) adapted to couple the laser light of the at least one color;
and the diffusion plate (4) is suitable for diffusing the laser of the at least one color coupled by the light guide plate to the display panel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211401989.8A CN115755463A (en) | 2022-11-10 | 2022-11-10 | Laser backlight module and display manufactured by using same |
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| CN202211401989.8A CN115755463A (en) | 2022-11-10 | 2022-11-10 | Laser backlight module and display manufactured by using same |
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