CN111081749A - Display device and manufacturing method thereof - Google Patents
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- 239000004926 polymethyl methacrylate Substances 0.000 claims description 27
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- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 16
- SIKJAQJRHWYJAI-UHFFFAOYSA-N Indole Chemical compound C1=CC=C2NC=CC2=C1 SIKJAQJRHWYJAI-UHFFFAOYSA-N 0.000 claims description 16
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical compound C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 claims description 16
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 16
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- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 claims description 16
- MUSLHCJRTRQOSP-UHFFFAOYSA-N rhodamine 101 Chemical class [O-]C(=O)C1=CC=CC=C1C(C1=CC=2CCCN3CCCC(C=23)=C1O1)=C2C1=C(CCC1)C3=[N+]1CCCC3=C2 MUSLHCJRTRQOSP-UHFFFAOYSA-N 0.000 claims description 16
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- -1 aliphatic hydrocarbon rhodamine 6G derivative Chemical class 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 125000001814 trioxo-lambda(7)-chloranyloxy group Chemical group *OCl(=O)(=O)=O 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- LWNGJAHMBMVCJR-UHFFFAOYSA-N (2,3,4,5,6-pentafluorophenoxy)boronic acid Chemical compound OB(O)OC1=C(F)C(F)=C(F)C(F)=C1F LWNGJAHMBMVCJR-UHFFFAOYSA-N 0.000 claims description 9
- 125000000129 anionic group Chemical group 0.000 claims description 9
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- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 9
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- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 claims description 8
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- CPNGPNLZQNNVQM-UHFFFAOYSA-N pteridine Chemical compound N1=CN=CC2=NC=CN=C21 CPNGPNLZQNNVQM-UHFFFAOYSA-N 0.000 claims description 8
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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Abstract
The display device comprises a color conversion film positioned between a white light source and a color film layer, and comprises a first conversion part corresponding to the green color resistor and converting cyan and green light into green light, a second conversion part corresponding to the red color resistor and converting yellow and orange light into red light, and a third conversion part corresponding to the blue color resistor. This application is through setting up the first conversion part that converts cyan-green light into green glow in the regional setting that green colour hinders the correspondence, set up the second conversion part that converts yellow orange light into ruddiness in the regional setting that red colour hinders the correspondence, has realized the promotion of color purity and the promotion of light conversion efficiency.
Description
Technical Field
The present disclosure relates to display devices, and particularly to a display device and a method for manufacturing the same.
Background
An Organic Light Emitting Diode (OLED) display has advantages of self-luminescence, simple structure, lightness, thinness, fast response speed, wide viewing angle, low power consumption, and capability of realizing flexible display, and thus the OLED display has attracted attention in recent years.
The OLED display device for display is one of important elements in the OLED display. In the prior art, the color display of the OLED display device mainly adopts two methods, one method is to prepare the OLED display device having three subpixels of red, green and blue through a Fine Metal Mask (FMM), but the method is limited by the FMM, resulting in low resolution. Another method is to realize color display by combining white light and color film layers, which is not limited by a fine metal mask, but the display has the disadvantages of low color gamut and low backlight conversion efficiency.
Therefore, a display device is needed to solve the above technical problems.
Disclosure of Invention
The application provides a display device and a manufacturing method thereof, which aim to solve the technical problems of low color gamut and low backlight conversion efficiency of the conventional light-emitting diode.
In order to solve the above problems, the technical solution provided by the present application is as follows:
the application provides a display device, it includes:
a white light source;
the color film layer comprises a red color resistor, a green color resistor and a blue color resistor; and
the color conversion film is positioned between the white light source and the color film layer and comprises a first conversion part, a second conversion part and a third conversion part, wherein the first conversion part corresponds to the green color resistor and converts cyan and green light into green light, the second conversion part corresponds to the red color resistor and converts yellow and orange light into red light, and the third conversion part corresponds to the blue color resistor.
In the display device of the present application, the first converting moiety includes a rhodamine 6G derivative, and the rhodamine 6G derivative has a structural formula:
wherein R1-R6 are-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups;
R7-R10 are-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups;
x-is one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-.
In the display device of the present application, the second converting moiety includes a rhodamine 101 derivative, and the structural formula of the rhodamine 101 derivative is:
wherein, X-is one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-;
r1 to R4 each represents — F, -Cl, Br, -I, -CN, -NH2, -COOH, -OH, -SH, -COH, -COO-, -COCl, -COBr, -CN, -NO2, -NH2, -NH, ≡ N, a benzene or phenol ring, or has a nonconjugated structure or a conjugated structure connected through an alkoxy group or an ester group.
In the display device of the present application, the conjugated structure is a five-membered heterocyclic compound, a six-membered heterocyclic compound, or a condensed ring heterocyclic compound;
the five-membered heterocyclic compound comprises furan, thiophene, pyrrole, thiazole and imidazole;
the six-membered heterocyclic compound comprises pyridine, pyrazine, pyrimidine and pyridazine;
the fused ring heterocyclic compound comprises indole, quinoline, pteridine and acridine.
In the display device of the present application, a material of the first conversion portion is the same as a material of the second conversion portion;
the first converting moiety and the second converting moiety include a rhodamine 6G derivative and a rhodamine 101 derivative.
The application also provides a manufacturing method of the display device, which comprises the following steps:
providing a white light source;
providing a color film layer, wherein the color film layer comprises a red color resistor, a green color resistor and a blue color resistor;
forming a color conversion film between the white light source and the color film layer;
the color conversion film includes a first conversion portion corresponding to the green color resist and converting cyan-green light into green light, a second conversion portion corresponding to the red color resist and converting yellow-orange light into red light, and a third conversion portion corresponding to the blue color resist.
In the manufacturing method of the present application, forming a color conversion film between the white light source and the color film layer includes:
preparing a first converter material, and forming the first converter material in a region corresponding to the green color resistance by using ink jet printing;
the step of preparing the first converter material includes:
mixing a cationic, aliphatic hydrocarbon rhodamine 6G derivative with an anionic tetrakis (pentafluorophenyl) borate in solution to form a first mixture;
acetonitrile is used as a good solvent, water is used as a poor solvent, and nano-precipitation is utilized to prepare polymethyl methacrylate/sulfonic acid nano-particles;
mixing the polymethylmethacrylate/sulfonic acid nanoparticles with the first mixture such that the polymethylmethacrylate/sulfonic acid nanoparticles encapsulate the first mixture to form the first converter material;
wherein the structural formula of the rhodamine 6G derivative is as follows:
R1-R6 are-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups;
R7-R10 are-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups;
x-is one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-.
In the manufacturing method of the present application, forming a color conversion film between the white light source and the color film layer further includes:
preparing a second conversion part material, and forming the second conversion part material in a region corresponding to the red color resistance by using ink-jet printing;
the step of preparing the second converter material includes:
mixing a cationic, aliphatic hydrocarbon rhodamine 101 derivative with an anionic tetrakis (pentafluorophenyl) borate in solution to form a second mixture;
acetonitrile is used as a good solvent, water is used as a poor solvent, and nano-precipitation is utilized to prepare polymethyl methacrylate/sulfonic acid nano-particles;
mixing the polymethylmethacrylate/sulfonic acid nanoparticles with the second mixture such that the polymethylmethacrylate/sulfonic acid nanoparticles encapsulate the second mixture to form the second switching material;
wherein the structural formula of the rhodamine 101 derivative is as follows:
wherein, X-is one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-;
r1 to R4 each represents — F, -Cl, Br, -I, -CN, -NH2, -COOH, -OH, -SH, -COH, -COO-, -COCl, -COBr, -CN, -NO2, -NH2, -NH, ≡ N, a benzene or phenol ring, or has a nonconjugated structure or a conjugated structure connected through an alkoxy group or an ester group.
In the fabrication method of the present application, the conjugated structure is a five-membered heterocyclic compound, a six-membered heterocyclic compound, or a condensed-ring heterocyclic compound;
the five-membered heterocyclic compound comprises furan, thiophene, pyrrole, thiazole and imidazole;
the six-membered heterocyclic compound comprises pyridine, pyrazine, pyrimidine and pyridazine;
the condensed ring heterocyclic compound comprises indole, quinoline, pteridine and acridine;
the non-conjugated structure comprises straight-chain alkane, branched-chain alkane, straight-chain alkoxy-group branched-chain alkane, chain object containing ester group and F-substituted alkane derivative;
wherein the length range of the carbon chain of the non-conjugated structure is 1-25.
In the manufacturing method of the present application, forming a color conversion film between the white light source and the color film layer includes:
preparing the color conversion film comprising a first conversion part material and a second conversion part material, and forming the color conversion film in the areas corresponding to the green color resistor and the red color resistor by using ink-jet printing;
the step of preparing the color conversion film including the first converter material, the second converter material includes:
mixing cationic aliphatic hydrocarbon rhodamine 6G derivatives and aliphatic hydrocarbon rhodamine 101 derivatives with anionic tetrakis (pentafluorophenyl) borate in solution to form a third mixture;
acetonitrile is used as a good solvent, water is used as a poor solvent, and nano-precipitation is utilized to prepare polymethyl methacrylate/sulfonic acid nano-particles;
mixing the polymethyl methacrylate/sulfonic acid nanoparticles with the third mixture such that the polymethyl methacrylate/sulfonic acid nanoparticles encapsulate the third mixture to form the color conversion film.
Has the advantages that: this application is through setting up the first conversion part that converts cyan-green light into green glow in the regional setting that green colour hinders the correspondence, set up the second conversion part that converts yellow orange light into ruddiness in the regional setting that red colour hinders the correspondence, has realized the promotion of color purity and the promotion of light conversion efficiency.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a display device according to the present application;
fig. 2 is a flow process diagram of a method for manufacturing a display device according to the present application.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments that can be implemented by the application. Directional phrases used in this application, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., refer only to the directions of the attached drawings. Accordingly, the directional terminology is used for purposes of illustration and understanding, and is in no way limiting. In the drawings, elements having similar structures are denoted by the same reference numerals.
The color display of the prior art OLED display device usually utilizes a combination of white light and color film layers to realize color display, which is not limited by a fine metal mask plate, but the display has the disadvantages of low color gamut and low backlight conversion efficiency. Therefore, the present application proposes the following technical solutions based on the above technical problems.
Referring to fig. 1, the display device 100 includes a white light source 10, a color film layer 20, and a color conversion film 30 disposed between the white light source 10 and the color film layer 20.
In this embodiment, the color film layer 20 may include a red color resistor 201, a green color resistor 202, and a blue color resistor 203.
In this embodiment, the color conversion film 30 may include a first conversion portion 301 corresponding to the green color resistor 202 and converting cyan-green light into green light, a second conversion portion 302 corresponding to the red color resistor 201 and converting yellow-orange light into red light, and a third conversion portion 303 corresponding to the blue color resistor 203.
In this embodiment, the color conversion film 30 may be an organic fluorescent color conversion film.
In this embodiment, the third conversion part 303 may be formed of a transparent material.
This application is through setting up the first conversion part 301 that converts cyan-green light into green glow in the regional setting that green color hinders 202, set up the second conversion part 302 that converts yellow-orange light into ruddiness in the regional setting that red color hinders 201 and corresponds, realizes the promotion of color purity and the promotion of light conversion efficiency.
In this embodiment, the first converting moiety 301 may include a rhodamine 6G derivative, the formula of which is:
in this example, R1-R6 are parent ring structures of the above formula. R1-R6 can be-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups.
In this example, R7-R10 are the bottom ring structures of the above formula. R7-R10 can be-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups.
In this embodiment, the carbon chain length of the ester group in the carbocyclic structure of the rhodamine 6G derivative may be in a range of 1 to 40.
In this example, X-is one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-.
In this embodiment, R1 to R4 may be conjugated structures, and R5 and R6 are amino group-containing structures in the parent rings No. 3 and No. 6.
In the present embodiment, the non-conjugated structure includes linear alkane, branched alkane, linear and branched alkane of alkoxy, chain containing ester group, F-substituted alkane derivative, and the like, and the present embodiment is not limited to the above structure.
In this embodiment, the length of the carbon chain with the non-conjugated structure may be in a range of 1 to 25.
In this embodiment, the conjugated structure may be a compound containing a heterocycle. The heterocyclic compound may be a five-membered heterocyclic compound, a six-membered heterocyclic compound, a condensed ring heterocyclic compound or the like.
In this embodiment, the five-membered heterocyclic compound includes furan, thiophene, pyrrole, thiazole, imidazole, and the like. The six-membered heterocyclic compound includes pyridine, pyrazine, pyrimidine, pyridazine and the like. The fused ring heterocyclic compound includes indole, quinoline, pteridine, acridine and the like. The present application is not particularly limited.
In this embodiment, the second converting moiety 302 includes a rhodamine 101 derivative, and the formula of the rhodamine 101 derivative is:
in this embodiment, X-may be one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-;
in this example, R1 to R4 each represents — F, -Cl, Br, -I, -CN, -NH2, -COOH, -OH, -SH, -COH, -COO-, -COCl, -COBr, -CN, -NO2, -NH2, -NH, ≡ N, -N, a benzene or phenol ring, or has a non-conjugated structure, or a conjugated structure in which two groups are linked via an alkoxy group or an ester group.
In this embodiment, the carbon chain length of the ester group in the carbocyclic structure in the structural formula of the rhodamine 101 derivative can be in a range of 1 to 40.
In the present embodiment, the non-conjugated structure includes linear alkane, branched alkane, linear and branched alkane of alkoxy, chain containing ester group, F-substituted alkane derivative, and the like, and the present embodiment is not limited to the above structure.
In this embodiment, the length of the carbon chain of the non-conjugated structure may be in a range of 1 to 30.
In this embodiment, the conjugated structure may be a compound containing a heterocycle. The heterocyclic compound may be a five-membered heterocyclic compound, a six-membered heterocyclic compound, a condensed ring heterocyclic compound or the like.
In this embodiment, the five-membered heterocyclic compound includes furan, thiophene, pyrrole, thiazole, imidazole, and the like. The six-membered heterocyclic compound includes pyridine, pyrazine, pyrimidine, pyridazine and the like. The fused ring heterocyclic compound includes indole, quinoline, pteridine, acridine and the like. The present application is not particularly limited.
In this embodiment, the material of the first converting part and the material of the second converting part may be the same, that is, the first converting part and the second converting part both include a rhodamine 6G derivative and a rhodamine 101 derivative.
Therefore, the first conversion section and the second conversion section in the present embodiment filter yellow-orange light and cyan-green light at the same time. When yellow-orange light and cyan-green light pass through the green color resistor, only cyan-green light can pass through the green color resistor, while yellow-orange light is blocked. When yellow-orange light and cyan-green light pass through the red color resistor, only yellow-orange light can pass through the red color resistor, while cyan-green light is blocked.
This application sets up through the regional first conversion part 301 that converts cyan-green light into green glow that sets up that corresponds at green color resistance 202, sets up the second conversion part 302 that converts yellow-orange light into ruddiness at the regional that red color resistance 201 corresponds, has realized the promotion of color purity and the promotion of light conversion efficiency.
Referring to fig. 1-2, the present application further provides a manufacturing method of a display device 100, including:
s10, providing a white light source 10;
s20, providing a color film layer 20, wherein the color film layer 20 includes a red color resistor 201, a green color resistor 202 and a blue color resistor 203;
s30, forming a color conversion film 30 between the white light source 10 and the color film layer 20.
In the present embodiment, the color conversion film 30 includes a first conversion portion 301 corresponding to the green color resistor 202 and converting cyan-green light into green light, a second conversion portion 302 corresponding to the red color resistor 201 and converting yellow-orange light into red light, and a third conversion portion 303 corresponding to the blue color resistor 203.
This application sets up through the regional first conversion part 301 that converts cyan-green light into green glow that sets up that corresponds at green color resistance 202, sets up the second conversion part 302 that converts yellow-orange light into ruddiness at the regional that red color resistance 201 corresponds, has realized the promotion of color purity and the promotion of light conversion efficiency.
In the present embodiment, step S30 includes:
s31, preparing a first converting part material, and forming the first converting part material in a region corresponding to the green color resist 202 by ink jet printing;
wherein the step of preparing the first transition material comprises:
s311, mixing a cationic aliphatic hydrocarbon rhodamine 6G derivative and an anionic tetrakis (pentafluorophenyl) borate in a solution to form a first mixture;
s312, preparing polymethyl methacrylate/sulfonic acid nanoparticles by using acetonitrile as a good solvent and water as a poor solvent and utilizing nano-precipitation;
s313, mixing the polymethyl methacrylate/sulfonic acid nanoparticles with the first mixture, and enabling the polymethyl methacrylate/sulfonic acid nanoparticles to wrap the first mixture to form the first conversion part material.
In this embodiment, the first converting moiety 301 may include a rhodamine 6G derivative, the formula of which is:
in this example, R1-R6 are parent ring structures of the above formula. R1-R6 can be-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups.
In this example, R7-R10 are the bottom ring structures of the above formula. R7-R10 can be-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups.
In this embodiment, the carbon chain length of the ester group in the carbocyclic structure of the rhodamine 6G derivative may be in a range of 1 to 40.
In this example, X-is one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-.
In this embodiment, R1 to R4 may be conjugated structures, and R5 and R6 are amino group-containing structures in the parent rings No. 3 and No. 6.
In the present embodiment, the non-conjugated structure includes linear alkane, branched alkane, linear and branched alkane of alkoxy, chain containing ester group, F-substituted alkane derivative, and the like, and the present embodiment is not limited to the above structure.
In this embodiment, the length of the carbon chain with the non-conjugated structure may be in a range of 1 to 25.
In this embodiment, the conjugated structure may be a compound containing a heterocycle. The heterocyclic compound may be a five-membered heterocyclic compound, a six-membered heterocyclic compound, a condensed ring heterocyclic compound or the like.
In this embodiment, the five-membered heterocyclic compound includes furan, thiophene, pyrrole, thiazole, imidazole, and the like. The six-membered heterocyclic compound includes pyridine, pyrazine, pyrimidine, pyridazine and the like. The fused ring heterocyclic compound includes indole, quinoline, pteridine, acridine and the like. The present application is not particularly limited.
In this embodiment, step S30 further includes:
s32, preparing a second converter material, and forming the second converter material in a region corresponding to the red color resistor 201 by inkjet printing;
wherein the step of preparing the second conversion material comprises:
s321, mixing a cationic aliphatic hydrocarbon rhodamine 101 derivative and an anionic tetrakis (pentafluorophenyl) borate in the solution to form a second mixture;
s322, using acetonitrile as a good solvent and water as a poor solvent, and preparing polymethyl methacrylate/sulfonic acid nanoparticles by using nano-precipitation;
s323, mixing the pmma/sulfonic acid nanoparticles with the second mixture, such that the pmma/sulfonic acid nanoparticles encapsulate the second mixture to form the second converter material;
in this embodiment, the second converting moiety 302 includes a rhodamine 101 derivative, and the formula of the rhodamine 101 derivative is:
in this embodiment, X-may be one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-;
in this example, R1 to R4 each represents — F, -Cl, Br, -I, -CN, -NH2, -COOH, -OH, -SH, -COH, -COO-, -COCl, -COBr, -CN, -NO2, -NH2, -NH, ≡ N, -N, a benzene or phenol ring, or has a non-conjugated structure, or a conjugated structure in which two groups are linked via an alkoxy group or an ester group.
In this embodiment, the carbon chain length of the ester group in the carbocyclic structure in the structural formula of the rhodamine 101 derivative can be in a range of 1 to 40.
In the present embodiment, the non-conjugated structure includes linear alkane, branched alkane, linear and branched alkane of alkoxy, chain containing ester group, F-substituted alkane derivative, and the like, and the present embodiment is not limited to the above structure.
In this embodiment, the length of the carbon chain of the non-conjugated structure may be in a range of 1 to 30.
In this embodiment, the conjugated structure may be a compound containing a heterocycle. The heterocyclic compound may be a five-membered heterocyclic compound, a six-membered heterocyclic compound, a condensed ring heterocyclic compound or the like.
In this embodiment, the five-membered heterocyclic compound includes furan, thiophene, pyrrole, thiazole, imidazole, and the like. The six-membered heterocyclic compound includes pyridine, pyrazine, pyrimidine, pyridazine and the like. The fused ring heterocyclic compound includes indole, quinoline, pteridine, acridine and the like. The present application is not particularly limited.
In the manufacturing method of the present application, the third converting part is made of a transparent material.
In the embodiment, the polymethyl methacrylate/sulfonic acid nanoparticles are prepared into polymer nanoparticles of 20-40 nm by introducing negatively charged sulfonic acid groups into the molecular chains of polymethyl methacrylate.
After the ionic dye is wrapped by the polymer nano particle, the fluorescence intensity of the polymer nano particle is increased by 10 times under the same size. The present application can control the size of the nanoparticles by the mixing time of the solvent, and adjust the relative content of the dye and the polymer to control the fluorescence intensity and the fluorescence quantum efficiency.
In the manufacturing method of the present application, the step of forming a color conversion film between the white light source and the color film layer may further include:
s331, preparing the color conversion film including a first conversion material and a second conversion material;
and S332, forming the color conversion film in the areas corresponding to the green color resistor and the red color resistor by utilizing ink jet printing.
Wherein the step of preparing the color conversion film including the first and second converter materials may include:
s3311, mixing cationic aliphatic hydrocarbon rhodamine 6G derivative and aliphatic hydrocarbon rhodamine 101 derivative with anionic tetrakis (pentafluorophenyl) borate in the solution to form a third mixture;
s3312, using acetonitrile as a good solvent and water as a poor solvent, and preparing polymethyl methacrylate/sulfonic acid nano particles by using nano precipitation;
s3313, mixing the polymethyl methacrylate/sulfonic acid nanoparticles with the third mixture, so that the polymethyl methacrylate/sulfonic acid nanoparticles wrap the third mixture to form the color conversion film.
In this embodiment, the material of the first converting part and the material of the second converting part may be the same, and both the first converting part and the second converting part include a rhodamine 6G derivative and a rhodamine 101 derivative.
Therefore, the first conversion section and the second conversion section in the present embodiment filter yellow-orange light and cyan-green light at the same time. When yellow-orange light and cyan-green light pass through the green color resistor, only cyan-green light can pass through the green color resistor, while yellow-orange light is blocked. When yellow-orange light and cyan-green light pass through the red color resistor, only yellow-orange light can pass through the red color resistor, while cyan-green light is blocked.
The display device comprises a color conversion film positioned between a white light source and a color film layer, and comprises a first conversion part corresponding to the green color resistor and converting cyan and green light into green light, a second conversion part corresponding to the red color resistor and converting yellow and orange light into red light, and a third conversion part corresponding to the blue color resistor. This application is through setting up the first conversion part that converts cyan-green light into green glow in the regional setting that green colour hinders the correspondence, set up the second conversion part that converts yellow orange light into ruddiness in the regional setting that red colour hinders the correspondence, has realized the promotion of color purity and the promotion of light conversion efficiency.
In summary, although the present application has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present application, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application, so that the scope of the present application shall be determined by the appended claims.
Claims (10)
1. A display device, comprising:
a white light source;
the color film layer comprises a red color resistor, a green color resistor and a blue color resistor; and
the color conversion film is positioned between the white light source and the color film layer and comprises a first conversion part, a second conversion part and a third conversion part, wherein the first conversion part corresponds to the green color resistor and converts cyan and green light into green light, the second conversion part corresponds to the red color resistor and converts yellow and orange light into red light, and the third conversion part corresponds to the blue color resistor.
2. The display device according to claim 1,
the first conversion part comprises a rhodamine 6G derivative, and the structural formula of the rhodamine 6G derivative is as follows:
wherein R1-R6 are-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups;
R7-R10 are-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups;
x-is one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-.
3. The display device according to claim 1,
the second conversion moiety comprises a rhodamine 101 derivative, and the structural formula of the rhodamine 101 derivative is as follows:
wherein, X-is one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-;
r1 to R4 each represents — F, -Cl, Br, -I, -CN, -NH2, -COOH, -OH, -SH, -COH, -COO-, -COCl, -COBr, -CN, -NO2, -NH2, -NH, ≡ N, a benzene or phenol ring, or has a nonconjugated structure or a conjugated structure connected through an alkoxy group or an ester group.
4. A display device as claimed in claim 2 or 3, characterised in that the conjugated structure is a five-membered, six-membered or fused ring heterocyclic compound;
the five-membered heterocyclic compound comprises furan, thiophene, pyrrole, thiazole and imidazole;
the six-membered heterocyclic compound comprises pyridine, pyrazine, pyrimidine and pyridazine;
the fused ring heterocyclic compound comprises indole, quinoline, pteridine and acridine.
5. The display device according to claim 1,
the material of the first converting part is the same as that of the second converting part;
the first converting moiety and the second converting moiety include a rhodamine 6G derivative and a rhodamine 101 derivative.
6. A method for manufacturing a display device, comprising:
providing a white light source;
providing a color film layer, wherein the color film layer comprises a red color resistor, a green color resistor and a blue color resistor;
forming a color conversion film between the white light source and the color film layer;
the color conversion film includes a first conversion portion corresponding to the green color resist and converting cyan-green light into green light, a second conversion portion corresponding to the red color resist and converting yellow-orange light into red light, and a third conversion portion corresponding to the blue color resist.
7. The method of claim 6, wherein forming a color conversion film between the white light source and the color film layer comprises:
preparing a first converter material, and forming the first converter material in a region corresponding to the green color resistance by using ink jet printing;
the step of preparing the first converter material includes:
mixing a cationic, aliphatic hydrocarbon rhodamine 6G derivative with an anionic tetrakis (pentafluorophenyl) borate in solution to form a first mixture;
acetonitrile is used as a good solvent, water is used as a poor solvent, and nano-precipitation is utilized to prepare polymethyl methacrylate/sulfonic acid nano-particles;
mixing the polymethylmethacrylate/sulfonic acid nanoparticles with the first mixture such that the polymethylmethacrylate/sulfonic acid nanoparticles encapsulate the first mixture to form the first converter material;
wherein the structural formula of the rhodamine 6G derivative is as follows:
R1-R6 are-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups;
R7-R10 are-F, -Cl, -Br, -I or-CN, or have a non-conjugated structure, or have a conjugated structure connected through alkoxy or ester groups;
x-is one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-.
8. The method of claim 6, wherein forming a color conversion film between the white light source and the color film layer further comprises:
preparing a second conversion part material, and forming the second conversion part material in a region corresponding to the red color resistance by using ink-jet printing;
the step of preparing the second converter material includes:
mixing a cationic, aliphatic hydrocarbon rhodamine 101 derivative with an anionic tetrakis (pentafluorophenyl) borate in solution to form a second mixture;
acetonitrile is used as a good solvent, water is used as a poor solvent, and nano-precipitation is utilized to prepare polymethyl methacrylate/sulfonic acid nano-particles;
mixing the polymethylmethacrylate/sulfonic acid nanoparticles with the second mixture such that the polymethylmethacrylate/sulfonic acid nanoparticles encapsulate the second mixture to form the second switching material;
wherein the structural formula of the rhodamine 101 derivative is as follows:
wherein, X-is one of F-, Cl-, Br-, CN-, ClO4-, CF3SO3-, CF2HSO 3-or CFH2SO 3-;
r1 to R4 each represents — F, -Cl, Br, -I, -CN, -NH2, -COOH, -OH, -SH, -COH, -COO-, -COCl, -COBr, -CN, -NO2, -NH2, -NH, ≡ N, a benzene or phenol ring, or has a nonconjugated structure or a conjugated structure connected through an alkoxy group or an ester group.
9. The method of manufacturing a display device according to claim 6,
the conjugated structure is a five-membered heterocyclic compound, a six-membered heterocyclic compound or a condensed ring heterocyclic compound;
the five-membered heterocyclic compound comprises furan, thiophene, pyrrole, thiazole and imidazole;
the six-membered heterocyclic compound comprises pyridine, pyrazine, pyrimidine and pyridazine;
the condensed ring heterocyclic compound comprises indole, quinoline, pteridine and acridine;
the non-conjugated structure comprises straight-chain alkane, branched-chain alkane, straight-chain alkoxy-group branched-chain alkane, chain object containing ester group and F-substituted alkane derivative;
wherein the length range of the carbon chain of the non-conjugated structure is 1-25.
10. The method of claim 6, wherein forming a color conversion film between the white light source and the color film layer comprises:
preparing the color conversion film comprising a first conversion part material and a second conversion part material, and forming the color conversion film in the areas corresponding to the green color resistor and the red color resistor by using ink-jet printing;
the step of preparing the color conversion film including the first converter material, the second converter material includes:
mixing cationic aliphatic hydrocarbon rhodamine 6G derivatives and aliphatic hydrocarbon rhodamine 101 derivatives with anionic tetrakis (pentafluorophenyl) borate in solution to form a third mixture;
acetonitrile is used as a good solvent, water is used as a poor solvent, and nano-precipitation is utilized to prepare polymethyl methacrylate/sulfonic acid nano-particles;
mixing the polymethyl methacrylate/sulfonic acid nanoparticles with the third mixture such that the polymethyl methacrylate/sulfonic acid nanoparticles encapsulate the third mixture to form the color conversion film.
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