CN109991778A - 背光模组及显示设备 - Google Patents
背光模组及显示设备 Download PDFInfo
- Publication number
- CN109991778A CN109991778A CN201910287280.1A CN201910287280A CN109991778A CN 109991778 A CN109991778 A CN 109991778A CN 201910287280 A CN201910287280 A CN 201910287280A CN 109991778 A CN109991778 A CN 109991778A
- Authority
- CN
- China
- Prior art keywords
- light
- film
- backlight module
- blue
- light source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003595 spectral effect Effects 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims description 52
- 238000004020 luminiscence type Methods 0.000 claims description 49
- 239000013078 crystal Substances 0.000 claims description 33
- 239000002245 particle Substances 0.000 claims description 30
- 238000004519 manufacturing process Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 229910052681 coesite Inorganic materials 0.000 claims description 12
- 229910052906 cristobalite Inorganic materials 0.000 claims description 12
- 239000011806 microball Substances 0.000 claims description 12
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical group [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 claims description 12
- 239000000377 silicon dioxide Substances 0.000 claims description 12
- 229910052682 stishovite Inorganic materials 0.000 claims description 12
- 229910052905 tridymite Inorganic materials 0.000 claims description 12
- 239000002861 polymer material Substances 0.000 claims description 7
- 239000002096 quantum dot Substances 0.000 claims description 6
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 5
- 229910052775 Thulium Inorganic materials 0.000 claims description 5
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000011805 ball Substances 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 12
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000005284 excitation Effects 0.000 description 8
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 6
- 239000004926 polymethyl methacrylate Substances 0.000 description 6
- 238000002310 reflectometry Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 235000019441 ethanol Nutrition 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 241001062009 Indigofera Species 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 208000012826 adjustment disease Diseases 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000004038 photonic crystal Substances 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RAASUWZPTOJQAY-UHFFFAOYSA-N Dibenz[a,c]anthracene Chemical compound C1=CC=C2C3=CC4=CC=CC=C4C=C3C3=CC=CC=C3C2=C1 RAASUWZPTOJQAY-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- MORMPWNLQJTSOT-UHFFFAOYSA-L disodium;4-dodecyl-2-(4-sulfonatophenoxy)benzenesulfonate Chemical compound [Na+].[Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C(OC=2C=CC(=CC=2)S([O-])(=O)=O)=C1 MORMPWNLQJTSOT-UHFFFAOYSA-L 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002189 fluorescence spectrum Methods 0.000 description 2
- 230000003760 hair shine Effects 0.000 description 2
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 description 2
- 229910021644 lanthanide ion Inorganic materials 0.000 description 2
- 229910052747 lanthanoid Inorganic materials 0.000 description 2
- 150000002602 lanthanoids Chemical class 0.000 description 2
- 238000001579 optical reflectometry Methods 0.000 description 2
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- SNRUBQQJIBEYMU-UHFFFAOYSA-N Dodecane Natural products CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000003368 amide group Chemical group 0.000 description 1
- LDDQLRUQCUTJBB-UHFFFAOYSA-N ammonium fluoride Chemical compound [NH4+].[F-] LDDQLRUQCUTJBB-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- KVNRLNFWIYMESJ-UHFFFAOYSA-N butyronitrile Chemical compound CCCC#N KVNRLNFWIYMESJ-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- -1 dodecyl diphenyl oxide Sodium Chemical compound 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- ZFKJVJIDPQDDFY-UHFFFAOYSA-N fluorescamine Chemical compound C12=CC=CC=C2C(=O)OC1(C1=O)OC=C1C1=CC=CC=C1 ZFKJVJIDPQDDFY-UHFFFAOYSA-N 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000007641 inkjet printing Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 230000004298 light response Effects 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 238000003808 methanol extraction Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical class C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012704 polymeric precursor Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133621—Illuminating devices providing coloured light
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133624—Illuminating devices characterised by their spectral emissions
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2202/00—Materials and properties
- G02F2202/36—Micro- or nanomaterials
Abstract
本发明是关于一种背光模组及显示设备,涉及液晶显示设备技术领域。主要采用的技术方案为:背光模组,其包括:依次层叠设置的光源部件、波长选择膜、蓝色发光膜、红绿发光膜以及棱镜膜;其中,光源部件用于发射预设波长的光线,所述波长选择膜能够供所述光源部件发射的预设波长的光线穿过,并对蓝光波段、红光波段和绿光波段的光线进行反射,所述蓝色发光膜能够在所述预设波长的光线的照射下激发发出蓝光。本发明实施例提供的背光模组,其解决现有技术中背光模组存在的光线抵耗问题,达到提高光效利用率的目的,此外还解决了现有技术中背光模组混光距离偏大的技术问题。
Description
技术领域
本发明涉及液晶显示设备技术领域,特别是涉及一种背光模组及显示设备。
背景技术
背光模组是用于为液晶显示设备提供背光源的模组,是液晶显示设备(LCD)的重要部件。
现有技术中的背光模组,其发出的光线中的一部分会经棱镜膜向光源部件方向反射,再经光源部件表面的白油反射,使这部分反射的光线射出背光模组,但是白油对光线的反射率仅有80%,因此现有技术中的背光模组存在光线抵耗,光效利用率较低的问题。
所以针对上述技术问题,还需要进一步的解决。
发明内容
本发明的主要目的在于,提供一种新型结构的背光模组及显示设备,使其能够解决现有技术中背光模组存在的光线抵耗问题,达到提高光效利用率的目的。
本发明的目的及解决其技术问题是采用以下技术方案来实现的。依据本发明提出的一种背光模组,其包括:
依次层叠设置的光源部件、波长选择膜、蓝色发光膜、红绿发光膜以及棱镜膜;
其中,光源部件用于发射预设波长的光线,所述波长选择膜能够供所述光源部件发射的预设波长的光线穿过,并对蓝光波段、红光波段和绿光波段的光线进行反射,所述蓝色发光膜能够在所述预设波长的光线的照射下激发发出蓝光。
本发明的目的及解决其技术问题还可采用以下技术措施进一步实现。
可选的,前述的背光模组,其中所述光源部件为紫外光源部件,所述蓝色发光膜为光子晶体膜。
可选的,前述的背光模组,其中所述光源部件发出的紫外光线的波长为254-365nm;
所述光子晶体膜采用粒径为170-210nm的光子晶体微球组装而成。
可选的,前述的背光模组,其中光子晶体微球是以聚苯乙烯为核,甲基丙烯酸甲酯和荧光胺衍生物的共聚物为壳的微球。
可选的,前述的背光模组,其中所述光源部件为近红外光源部件,所述蓝色发光膜为上转换发光膜。
可选的,前述的背光模组,其中所述光源部件发出的近红外光线的波长为970-980nm;
所述上转换发光膜采用粒径为10-30nm的上转换发光粒子和透明高分子材料制造。
可选的,前述的背光模组,其中所述上转换发光粒子的材质为NaYF4:20%Yb,0.5%Tm,所述透明高分子材料为聚甲基丙烯酸甲酯。
可选的,前述的背光模组,其中所述波长选择膜为ZnSe纳米膜层和SiO2纳米膜层依次重复层叠制作;
其中,所述ZnSe纳米膜层和SiO2纳米膜层总的层叠层数为300-800层。
可选的,前述的背光模组,其中所述红绿发光膜为量子点膜或荧光粉膜。
另外,本发明还提供一种显示设备,其包括:背光模组;
所述背光模组包括:
依次层叠设置的光源部件、波长选择膜、蓝色发光膜、红绿发光膜以及棱镜膜;
其中,光源部件用于发射预设波长的光线,所述波长选择膜能够供所述光源部件发射的预设波长的光线穿过,并对蓝光波段、红光波段和绿光波段的光线进行反射,所述蓝色发光膜能够在所述预设波长的光线的照射下激发发出蓝光。
借由上述技术方案,本发明背光模组及显示设备至少具有下列优点:
本发明实施例提供的背光模组,其在光源部件和红绿发光膜之间增设波长选择膜和蓝色发光膜。光源部件发射的预设波长的光线通过波长选择膜之后,照射在蓝色发光膜上,将蓝色发光膜激发发出蓝光波段的光线即蓝光,再由蓝光波段的光线照射在红绿发光膜上,使红绿发光膜被激发发出红光波段和绿光波段的光线,即红光和绿光,最终三种光线混合发出白光。由于波长选择膜仅能够供光源部件发出的预设波长的光线通过,所以棱镜膜反射回来的白光所包含的蓝光波段、红光波段和绿光波段的光线,能够被波长选择膜全反射,最终穿过棱镜膜发射出去,进而解决了背光模组存在光线抵耗,光效利用率较低的问题。此外,本案通过蓝色发光膜的设置,使光源部件发出的光通过波长选择膜后照射在蓝色发光膜上,由于蓝色发光膜是一个整体的膜层,并不是现有技术中一颗颗发光的芯片,所以此时蓝色发光膜激发发出的蓝光为面光源,可以直接照射在红绿发光膜上,使红绿发光膜发出红光和绿光,并同时进行混光,最终产生白光,进而无需在蓝色发光膜和红绿发光膜之间设置一定的混光空间,进而解决了现有技术中混光距离偏大的技术问题。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,并可依照说明书的内容予以实施,以下以本发明的较佳实施例并配合附图详细说明如后。
附图说明
图1是本发明的实施例提供的一种背光模组的结构示意图;
图2是本发明的实施例提供的一种波长选择膜的结构示意图;
图3是本发明的实施例提供的一种波长选择膜对光线的反射率示意图;
图4是本发明的实施例提供的另一种波长选择膜对光线的反射率示意图。
具体实施方式
为更进一步阐述本发明为达成预定发明目的所采取的技术手段及功效,以下结合附图及较佳实施例,对依据本发明提出的背光模组及显示设备,其具体实施方式、结构、特征及其功效,详细说明如后。在下述说明中,不同的“一实施例”或“实施例”指的不一定是同一实施例。此外,一或多个实施例中的特定特征、结构、或特点可由任何合适形式组合。
实施例一
如图1所示,本发明的实施例一提出的一种背光模组,其包括:依次层叠设置的光源部件1、波长选择膜2、蓝色发光膜3、红绿发光膜4以及棱镜膜5;其中,光源部件1用于发射预设波长的光线,所述波长选择膜2能够供所述光源部件1发射的预设波长的光线穿过,并对蓝光波段、红光波段和绿光波段的光线进行反射,所述蓝色发光膜3能够在所述预设波长的光线的照射下激发发出蓝光。
具体的,本发明实施例中的背光模组,其是液晶显示设备(LCD)的重要部件,是用于为液晶显示设备供应充足的亮度与分布均匀的光源,使液晶显示设备能正常显示影像。
光源部件1优选为灯板,可以是柔性的灯板,也可以是硬质的灯板,可以使用需要进行选择。此外,光源部件1所发出的预设波长的光需要与蓝色发光膜3相匹配,即需要所发出的预设波长的光能够激发蓝色发光膜3,使蓝色发光膜3发出蓝光。
波长选择膜2是用于透过光源部件1发出的预设波长的光,并反射蓝光波段、红光波段和绿光波段的光线的膜层,波长选择膜2可以通过调控膜表面的折射率差异与波长的关系,调控光线的透射范围和反射范围。例如:以ZnSe和SiO2为材质,由ZnSe膜层和SiO2膜层交替叠加形成波长选择膜2,具体的交替重叠的膜层的层数可以根据需要进行选择。
蓝色发光膜3需要是能够在预设波长的光的激发下能够发出蓝光的膜层,即需要与光源部件1进行适配,例如蓝色发光膜3可以是光子晶体膜或者上转换发光膜。
红绿发光膜4是能够在蓝光的激发下发出红光和绿光的膜层,可以直接使用现有技术的背光模组中的红绿发光膜4,本发明不做赘述。棱镜膜5是能够透射出光线的膜层,棱镜膜5可以根据具体需要设置棱镜的角度和棱镜分布状态等参数,棱镜膜5也可以直接使用现有技术的背光模组中的棱镜膜5,本发明不做赘述。
本发明实施例提供的背光模组,其在光源部件1和红绿发光膜4之间增设波长选择膜2和蓝色发光膜3。光源部件1发射的预设波长的光线通过波长选择膜2之后,照射在蓝色发光膜3上,将蓝色发光膜3激发发出蓝光波段的光线即蓝光,再由蓝光波段的光线照射在红绿发光膜4上,使红绿发光膜4被激发发出红光波段和绿光波段的光线,即红光和绿光,最终三种光线混合发出白光。由于波长选择膜2仅能够供光源部件1发出的预设波长的光线通过,所以棱镜膜5反射回来的白光所包含的蓝光波段、红光波段和绿光波段的光线,能够被波长选择膜2全反射,最终穿过棱镜膜5发射出去,进而解决了背光模组存在光线抵耗,光效利用率较低的问题。此外,本案通过蓝色发光膜3的设置,使光源部件1发出的光通过波长选择膜2后照射在蓝色发光膜3上,由于蓝色发光膜3是一个整体的膜层,并不是现有技术中一颗颗发光的芯片,所以此时蓝色发光膜3激发发出的蓝光为面光源,可以直接照射在红绿发光膜4上,使红绿发光膜4发出红光和绿光,并同时进行混光,最终产生白光,进而无需在蓝色发光膜3和红绿发光膜4之间设置一定的混光空间,进而解决了现有技术中混光距离偏大的技术问题。
如图1所示,在具体实施中,其中光源部件1和蓝色发光膜3需要为相互适配,其包括两中较佳的实施方式:
其一:所述光源部件1为紫外光源部件,所述蓝色发光膜3为光子晶体膜。
具体的,光子晶体是由具有不同介电常数(或折射率)的介质材料在空间上周期性有序排列而成,这种周期性结构使得某一频率的光不被允许从中传播,这一频率区域叫做光子带隙,不能传播的光在表面发生相干衍射产生结构色。而具有紫外光响应特性的光子晶体,在紫外光的激发下可发出荧光。因此,这类光子晶体不仅具有结构色,而且具有荧光,当光子带隙与其荧光发射光谱匹配时,具有荧光增强的作用。所以本发明的一种较佳的实施方式中,选用光子晶体膜作为蓝色发光膜3,匹配的采用紫外光源部件作为光源部件1,这样紫外光源部件发出的紫外光线照射在光子晶体膜上,能够使光子晶体膜发出蓝色的荧光。
进一步的,所述光源部件1发出的紫外光线的波长为254-365nm;所述光子晶体膜采用粒径为170-210nm的光子晶体微球组装而成。
具体的,优选的波长为254-365nm的紫外光线与光子晶体膜的光子带隙相匹配,能够使光子晶体膜发出蓝光。而粒径为170-210nm的光子晶体微球组装成的光子晶体膜,其光子带隙与荧光发射光谱匹配,可实现荧光增强,进一步提高亮度,即提高光子晶体膜发出的蓝色荧光的亮度,其中光子晶体微球的优选粒径为190nm。此外,且光子晶体膜是由纳米级的微球组装而成,每一颗微球可发出荧光,因此当紫外光线照射在光子晶体膜上,光子晶体膜的所有光子晶体微球均发出蓝色荧光,形成均一的面光源,可以缩短蓝色发光膜3和红绿发光膜4之间的混光距离。其中,采用光子晶体微球组装光子晶体膜的方法可以为喷墨打印和工业提拉组装法。
再进一步的,光子晶体微球是以聚苯乙烯为核,甲基丙烯酸甲酯和荧光胺衍生物的共聚物为壳的微球。
具体的,本发明实施例提供的光子晶体微球可以采用如下方法制造,但不限于该制造方法:
1g苯乙烯和0.006g乳化剂十二烷基硫酸钠溶于70mL水中,在氮气保护下用75℃水浴加热,使用机械搅拌,设置转速为350r/min;按顺序加入9mg过硫酸钠,130mg亚硫酸氢钠,9mg过硫酸钠,引发聚合,反应时间为10min;缓慢加入19g苯乙烯,0.06g十二烷基硫酸钠,0.06g十二烷基二苯醚二磺酸钠,0.1g氢氧化钾和22.5g水的混合液,反应2h;按顺序加入6.25mg过硫酸钠,25mg亚硫酸氢钠,6.25mg过硫酸钠,反应15min;缓慢加入10g甲基丙烯酸甲酯,0.0125g十二烷基硫酸钠,0.0525g十二烷基二苯醚二磺酸钠,0.075g十二烷基二苯醚二磺酸钠,0.5g荧光胺衍生物,1g丙烯酸和10g水的混合液,反应2.5h,得到核壳结构聚合物光子晶体微球。
其中,上述的各种物料的加入量仅是该制造方法中的适用量,当需要大批生产可以等比例的调整上述各个物料的加入量,以及适应的调整反应时间等参数。
其二:所述光源部件1为近红外光源部件,所述蓝色发光膜3为上转换发光膜。
具体的,上转换发光膜包含有上转换发光粒子,而上转换发光粒子发光是一种非线性发光现象,这是因为连续吸收两个或两个以上长波长光子后发射出短波长光。无机稀土离子是不能实现上转换发光的,需要通过掺杂基质材料来实现发光。可以使用镧系元素掺杂在上转换发光粒子中,镧系离子是光敏基元,作为客体掺杂在合适的主体晶体中,可以发出激光。因此,通过选择合适的镧系离子进行掺杂,可以实现对上转换发光粒子的发光波长的调控。此外,上转换发光粒子发光还具有发射峰的半峰宽窄,荧光寿命长的特点。这样在近红外光的照射下,上转换发光膜能够发出蓝光。
进一步的,所述光源部件1发出的近红外光线的波长为970-980nm;所述上转换发光膜采用粒径为10-30nm的上转换发光粒子和透明高分子材料制造,其中透明高分子材料可以用作上转换发光粒子的粘结材料,且上转换发光粒子需要在整个上转换发光膜中均匀分布。
具体的,优选的光源部件1发出的近红外光线的波长为980nm,优选的上转换发光粒子的粒径为20nm。由于上转换发光膜由粒径为20nm上转换发光粒子与透明高分子材料混合制造,且上转换发光粒子是均匀分布的,所以当近红外光线照射在上转换发光膜上,上转换发光膜中的所有上转换发光粒子均被激发,能够形成蓝色的面光源,这使得混光距离大幅度缩短,降低了背光模组的成本。此外,通过调控上转换发光膜中的上转换发光粒子的浓度,可以对蓝色面光源的强度进行调控,因此可以根据使用的需要来调整上转换发光膜中上转换发光粒子的浓度,本发明不做具体的限定。
再进一步的,所述上转换发光粒子的材质为NaYF4:20%Yb,0.5%Tm,所述透明高分子材料为聚甲基丙烯酸甲酯(PMMA)。
具体的,本发明实施例提供的上转换发光粒子可以采用如下方法制造,但不限于该制造方法:
将0.24g的YCl3·6H2O,0.078g的YbCl3·6H2O,0.0019g的TmCl3·6H2O溶于甲醇中,将6ml油酸和15ml 1-十八烯置于100ml三口烧瓶中,再加入已混配的甲醇溶液,搅拌并加热至80℃,直至甲醇挥发完毕。接着向反应容器中通入氮气进行保护,继续升温至150℃,加热30min后,将反应产物冷却至室温。取0.1482g NH4F和0.1gNaOH溶于甲醇中,并将其加入三口瓶中,搅拌30min后,对其进行加热,升温至80℃,待溶剂挥发完毕,继续通入氮气。接着以15℃/min的加热速率升温至300℃,空气冷凝并维持60min,最后降至室温,关闭氮气,所得溶液呈黄褐色透明。之后将所得溶液倒入乙醇中去沉淀,离心分离,得到白色沉淀物,然后加入环己烷溶解,再加入甲醇沉淀并静置30min,离心分离得到沉淀物,再次加入乙醇,离心分离得到上转换发光粒子。上述方法生产出来的上转换发光粒子具有棒状和球状结构,直径为20nm。该上转换发光粒子在波长为980nm的近红外光的激发下,发出波长为450nm和475nm的蓝光。
其中,上述的制造方法中,各种物料的加入量仅是该制造方法中的适用量,当需要大批生产可以等比例的调整上述各个物料的加入量,以及适应的调整反应时间等参数。
具体的,本发明实施例提供的上转换发光膜可以采用如下方法制造,但不限于该制造方法:
为了后续制膜工艺中上转换发光粒子可以与PMMA均匀混配,所以对其进行表面修饰。修饰方法如下:将6mg所得上转换发光粒子溶于5ml环己烷中,加入盐酸溶液(pH=4)后搅拌1h。再加入丙酮离心,得到白色沉淀物,再将其溶于5ml去离子水中。将1ml含有60mg的Si-PEG的乙醇溶液缓慢滴入上步所得的水溶液中,遍地边搅拌,反应12h后,离心分离得到修饰后的上转换发光粒子。
上转换发光膜的制备:首先,将20ml的PMMA和1ml的NaYF4:20%Yb,0.5%Tm的乙醇溶液(浓度范围可为1-6mg/ml)进行混配,得到聚合前驱体,再加入引发剂0.05g的偶氮二异丁腈,在60℃条件下搅拌2h,进行预聚合。之后升温至80℃,反应45min后聚合完毕。将产物静置1h,排出气泡,利用旋涂工艺制成薄膜,再将薄膜进行高温处理,除去剩余单体,最终得到上转换发光膜。其中,调控NaYF4:20%Yb,0.5%Tm的浓度可实现蓝光强度的调控。
需要注意的是,上述的使用上转换发光粒子与PMMA均匀混配制造上转换发光膜的方法中,各物料的量仅是该制造方法中的适用量,当需要大批生产可以等比例的调整上述各个物料的加入量,以及适应的调整反应时间等参数。
如图2和图3所示,在具体实施中,其中所述波长选择膜2为ZnSe纳米膜层21和SiO2纳米膜层22依次重复层叠制作;其中,所述ZnSe纳米膜层21和SiO2纳米膜层22总的层叠层数为300-800层。另外,使用ZnSe和SiO2材料制作波长选择膜2仅为一种优选的方式,并不是具体的限定,波长选择膜2还可以采用其他材质制作,只要能够实现对紫外光线和近红外光线透过,对蓝光波段、红光波段和绿光波段的光线进行反射即可。
具体的,多层ZnSe纳米膜层21和SiO2纳米膜层22是依次交替的层叠的,且ZnSe纳米膜层21和SiO2纳米膜层22的数量是相等的,即总数为偶数层。其中,ZnSe纳米膜层21的厚度优选40-60nm,SiO2纳米膜层22的优选厚度为80-130nm。通过上述技术条件限制获得的波长选择膜2,其具体的性能如图3和图4所示,其中图3为波长选择膜3对波长在800nm以下的光线的反射状态,可见波长选择膜2对波长为254-365nm的紫外光线反射率在30%以下,即透过效果较好,而对波长为620-760nm的红光、波长为495-570nm的绿光以及波长为476-495nm的蓝光的反射率在100%或接近100%,即波长选择膜2能够适用于光源部件1为紫外光源部件,蓝色发光膜3为光子晶体膜的背光模组。此外,如图4所示,为波长选择膜2对波长在350-1200nm之间的光线的反射状态,可见波长选择膜2对波长为970-980nm的近红外光线反射率在30%左右,即透过效果较好,而对波长为620-760nm的红光、波长为495-570nm的绿光以及波长为476-495nm的蓝光的反射率在100%或接近100%,即波长选择膜2能够适用于光源部件1为近红外光源部件,蓝色发光膜3为上转换发光膜的背光模组。
在具体实施中,所述红绿发光膜4为量子点膜或荧光粉膜。
具体的,量子点是肉眼看不到的,极其微小的无机纳米晶体。每当受到光的刺激,量子点便会发出非常纯净的有色光线,所以在成本可控的情况下优选量子点膜作为红绿发光膜4。
此外,光子晶体膜可选用其他紫外激发下发出蓝光的荧光物,如含氨基甲酸酯基团的邻苯二甲酰亚胺类与荧光胺的混合物、二苯蒽及含二苯蒽类基团的衍生物。上转换发光膜中的上转换发光粒子可选用其他镧系材料掺杂后可发出蓝光的上转换发光粒子。
实施例二
本发明的实施例二提出的一种显示设备,其包括:背光模组;如图1所示,所述背光模组包括:依次层叠设置的光源部件1、波长选择膜2、蓝色发光膜3、红绿发光膜4以及棱镜膜5;其中,光源部件1用于发射预设波长的光线,所述波长选择膜2能够供所述光源部件1发射的预设波长的光线穿过,并对蓝光波段、红光波段和绿光波段的光线进行反射,所述蓝色发光膜3能够在所述预设波长的光线的照射下激发发出蓝光。
具体的,本实施例二中所述的背光模组可直接使用上述实施例一提供的背光模组,具体的实现结构可参见上述实施例一中描述的相关内容,此处不再赘述。
如图1所示,本发明实施例提供的显示设备,其使用的背光模组在光源部件1和红绿发光膜4之间增设波长选择膜2和蓝色发光膜3。光源部件1发射的预设波长的光线通过波长选择膜2之后,照射在蓝色发光膜3上,将蓝色发光膜3激发发出蓝光波段的光线即蓝光,再由蓝光波段的光线照射在红绿发光膜4上,使红绿发光膜4被激发发出红光波段和绿光波段的光线,即红光和绿光,最终三种光线混合发出白光。由于波长选择膜2仅能够供光源部件1发出的预设波长的光线通过,所以棱镜膜5反射回来的白光所包含的蓝光波段、红光波段和绿光波段的光线,能够被波长选择膜2全反射,最终穿过棱镜膜5发射出去,进而解决了背光模组存在光线抵耗,光效利用率较低的问题。此外,本案通过蓝色发光膜3的设置,使光源部件1发出的光通过波长选择膜2后照射在蓝色发光膜3上,由于蓝色发光膜3是一个整体的膜层,并不是现有技术中一颗颗发光的芯片,所以此时蓝色发光膜3激发发出的蓝光为面光源,可以直接照射在红绿发光膜4上,使红绿发光膜4发出红光和绿光,并同时进行混光,最终产生白光,进而无需在蓝色发光膜3和红绿发光膜4之间设置一定的混光空间,进而解决了现有技术中混光距离偏大的技术问题。
以上所述,仅是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本发明技术方案的范围内。
Claims (10)
1.一种背光模组,其特征在于,其包括:
依次层叠设置的光源部件、波长选择膜、蓝色发光膜、红绿发光膜以及棱镜膜;
其中,光源部件用于发射预设波长的光线,所述波长选择膜能够供所述光源部件发射的预设波长的光线穿过,并对蓝光波段、红光波段和绿光波段的光线进行反射,所述蓝色发光膜能够在所述预设波长的光线的照射下激发发出蓝光。
2.根据权利要求1所述的背光模组,其特征在于,
所述光源部件为紫外光源部件,所述蓝色发光膜为光子晶体膜。
3.根据权利要求2所述的背光模组,其特征在于,
所述光源部件发出的紫外光线的波长为254-365nm;
所述光子晶体膜采用粒径为170-210nm的光子晶体微球组装而成。
4.根据权利要求3所述的背光模组,其特征在于,
光子晶体微球是以聚苯乙烯为核,甲基丙烯酸甲酯和荧光胺衍生物的共聚物为壳的微球。
5.根据权利要求1所述的背光模组,其特征在于,
所述光源部件为近红外光源部件,所述蓝色发光膜为上转换发光膜。
6.根据权利要求5所述的背光模组,其特征在于,
所述光源部件发出的近红外光线的波长为970-980nm;
所述上转换发光膜采用粒径为10-30nm的上转换发光粒子和透明高分子材料制造。
7.根据权利要求6所述的背光模组,其特征在于,
所述上转换发光粒子的材质为NaYF4:20%Yb,0.5%Tm,所述透明高分子材料为聚甲基丙烯酸甲酯。
8.根据权利要求1-7中任一所述的背光模组,其特征在于,
所述波长选择膜为ZnSe纳米膜层和SiO2纳米膜层依次重复层叠制作;
其中,所述ZnSe纳米膜层和SiO2纳米膜层总的层叠层数为300-800层。
9.根据权利要求1中所述的背光模组,其特征在于,
所述红绿发光膜为量子点膜或荧光粉膜。
10.一种显示设备,其特征在于,其包括:
如权利要求1-9中任一项所述背光模组。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910287280.1A CN109991778A (zh) | 2019-04-11 | 2019-04-11 | 背光模组及显示设备 |
US16/669,953 US10935845B2 (en) | 2019-04-11 | 2019-10-31 | Backlight module and display device |
US17/071,380 US20210026204A1 (en) | 2019-04-11 | 2020-10-15 | Backlight module and display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910287280.1A CN109991778A (zh) | 2019-04-11 | 2019-04-11 | 背光模组及显示设备 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109991778A true CN109991778A (zh) | 2019-07-09 |
Family
ID=67133132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910287280.1A Pending CN109991778A (zh) | 2019-04-11 | 2019-04-11 | 背光模组及显示设备 |
Country Status (2)
Country | Link |
---|---|
US (2) | US10935845B2 (zh) |
CN (1) | CN109991778A (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112086526B (zh) * | 2020-09-01 | 2023-11-28 | 深圳市华星光电半导体显示技术有限公司 | 显示面板和显示装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101451673A (zh) * | 2007-12-07 | 2009-06-10 | 索尼株式会社 | 照明装置、颜色转换元件以及显示装置 |
CN101546088A (zh) * | 2008-03-26 | 2009-09-30 | 浜松光子学株式会社 | 波长变换光发生装置及发生方法 |
US20110116005A1 (en) * | 2008-05-19 | 2011-05-19 | Kabushiki Kaisha Toshiba | Linear white light source, and backlight and liquid crystal display device using the same |
CN104755830A (zh) * | 2012-11-09 | 2015-07-01 | 索尼公司 | 照明装置和显示装置 |
CN205910483U (zh) * | 2016-08-04 | 2017-01-25 | 青岛蓝之虹光电技术有限公司 | 应用波长转换原理的新型直下式背光光源装置 |
CN106526962A (zh) * | 2016-11-28 | 2017-03-22 | 纳晶科技股份有限公司 | 光转换膜片、其制备方法及显示设备 |
CN107489898A (zh) * | 2016-06-09 | 2017-12-19 | 三星显示有限公司 | 具有光转换层的发光设备 |
CN206848650U (zh) * | 2017-05-04 | 2018-01-05 | 深圳市华星光电技术有限公司 | 一种光学膜组件、背光模组及显示设备 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6072187A (en) * | 1994-07-06 | 2000-06-06 | Fisher Pierce Co. | Apparatus and method for reducing stray laser light in particle sensors using a narrow band filter |
US6750266B2 (en) | 2001-12-28 | 2004-06-15 | 3M Innovative Properties Company | Multiphoton photosensitization system |
CN101246937A (zh) * | 2007-02-15 | 2008-08-20 | 香港应用科技研究院有限公司 | 应用奈米小球形成二维图案的方法 |
KR101241549B1 (ko) * | 2011-07-18 | 2013-03-11 | 엘지이노텍 주식회사 | 광학 부재, 이를 포함하는 표시장치 및 이의 제조방법 |
US20170146859A1 (en) * | 2015-11-20 | 2017-05-25 | A. U. Vista, Inc. | Quantum-dot embedded polarizer component and display device using same |
JP6705759B2 (ja) * | 2017-01-24 | 2020-06-03 | 富士フイルム株式会社 | 波長変換フィルム |
CN206848648U (zh) * | 2017-05-04 | 2018-01-05 | 深圳市华星光电技术有限公司 | 一种背光模组和显示设备 |
-
2019
- 2019-04-11 CN CN201910287280.1A patent/CN109991778A/zh active Pending
- 2019-10-31 US US16/669,953 patent/US10935845B2/en active Active
-
2020
- 2020-10-15 US US17/071,380 patent/US20210026204A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101451673A (zh) * | 2007-12-07 | 2009-06-10 | 索尼株式会社 | 照明装置、颜色转换元件以及显示装置 |
CN101546088A (zh) * | 2008-03-26 | 2009-09-30 | 浜松光子学株式会社 | 波长变换光发生装置及发生方法 |
US20110116005A1 (en) * | 2008-05-19 | 2011-05-19 | Kabushiki Kaisha Toshiba | Linear white light source, and backlight and liquid crystal display device using the same |
CN104755830A (zh) * | 2012-11-09 | 2015-07-01 | 索尼公司 | 照明装置和显示装置 |
CN107489898A (zh) * | 2016-06-09 | 2017-12-19 | 三星显示有限公司 | 具有光转换层的发光设备 |
CN205910483U (zh) * | 2016-08-04 | 2017-01-25 | 青岛蓝之虹光电技术有限公司 | 应用波长转换原理的新型直下式背光光源装置 |
CN106526962A (zh) * | 2016-11-28 | 2017-03-22 | 纳晶科技股份有限公司 | 光转换膜片、其制备方法及显示设备 |
CN206848650U (zh) * | 2017-05-04 | 2018-01-05 | 深圳市华星光电技术有限公司 | 一种光学膜组件、背光模组及显示设备 |
Also Published As
Publication number | Publication date |
---|---|
US20200326593A1 (en) | 2020-10-15 |
US10935845B2 (en) | 2021-03-02 |
US20210026204A1 (en) | 2021-01-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108474522B (zh) | 直下型背光单元 | |
CN105891936B (zh) | 导光元件及其制作方法以及背光模组 | |
CN107424524A (zh) | 一种微型led显示面板 | |
CN107544178A (zh) | 光转换元件及包含它的显示装置 | |
EP2510389B1 (en) | Optical constructions incorporating a light guide and low refractive index films | |
CN105717700B (zh) | 增益型波长转换结构、发光膜及背光元件 | |
CN108474524B (zh) | 边缘照明型背光单元 | |
CN1873306B (zh) | 照明装置、显示装置和荧光体薄膜 | |
CN103911142A (zh) | 蓝色量子点复合颗粒、其制备方法、光电元件和光电设备 | |
TW200807104A (en) | Color image display device | |
US10126485B2 (en) | Optical film and lighting and display products including same | |
CN106147749A (zh) | 荧光微球组装成光子晶体、及其制备方法和应用 | |
WO2006080299A1 (ja) | 光機能性膜およびその製造方法 | |
CN107402416A (zh) | 量子扩散膜及其制作方法 | |
CN108169957A (zh) | 彩膜片及其制作方法和彩膜基板 | |
CN109991778A (zh) | 背光模组及显示设备 | |
JP2007523221A (ja) | 蛍光性の透明な複合材料 | |
CN108919558A (zh) | 一种楔形基板的量子点彩膜结构 | |
CN103710017A (zh) | 微流体法制备白色荧光量子点复合颗粒的方法 | |
TWI632220B (zh) | 量子點膠體組合溶液及其製造方法 | |
WO2018116882A1 (ja) | 波長変換フィルムおよび波長変換フィルムの製造方法 | |
JP7304544B2 (ja) | コロイド構造体、コロイド多重構造体、及びコロイド構造体の製造方法 | |
CN108802861B (zh) | 一种基于光子晶体“三明治”结构“分光镜”及其制备方法 | |
JP7014835B2 (ja) | 蛍光カラーホイール及びそれを用いた光源システム | |
WO2022107340A1 (ja) | 波長変換部材、バックライトユニット、及び画像表示装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190709 |