CN105446008A - Display device - Google Patents
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- CN105446008A CN105446008A CN201610015411.7A CN201610015411A CN105446008A CN 105446008 A CN105446008 A CN 105446008A CN 201610015411 A CN201610015411 A CN 201610015411A CN 105446008 A CN105446008 A CN 105446008A
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- light
- gap layer
- display device
- hole
- porous gap
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- 239000000843 powder Substances 0.000 claims abstract description 57
- 239000002096 quantum dot Substances 0.000 claims abstract description 49
- 239000012528 membrane Substances 0.000 claims description 76
- 239000000463 material Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 3
- 238000007598 dipping method Methods 0.000 description 36
- 238000009792 diffusion process Methods 0.000 description 32
- 230000004888 barrier function Effects 0.000 description 26
- 239000002245 particle Substances 0.000 description 25
- 238000010586 diagram Methods 0.000 description 14
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000008187 granular material Substances 0.000 description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 5
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- 235000007164 Oryza sativa Nutrition 0.000 description 4
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- 230000001788 irregular Effects 0.000 description 4
- 229920000515 polycarbonate Polymers 0.000 description 4
- 239000004417 polycarbonate Substances 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
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- 239000000758 substrate Substances 0.000 description 3
- PFNQVRZLDWYSCW-UHFFFAOYSA-N (fluoren-9-ylideneamino) n-naphthalen-1-ylcarbamate Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1=NOC(=O)NC1=CC=CC2=CC=CC=C12 PFNQVRZLDWYSCW-UHFFFAOYSA-N 0.000 description 2
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 2
- MARUHZGHZWCEQU-UHFFFAOYSA-N 5-phenyl-2h-tetrazole Chemical compound C1=CC=CC=C1C1=NNN=N1 MARUHZGHZWCEQU-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000005083 Zinc sulfide Substances 0.000 description 2
- -1 and do not absorbed Substances 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000007323 disproportionation reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- AQCDIIAORKRFCD-UHFFFAOYSA-N cadmium selenide Chemical compound [Cd]=[Se] AQCDIIAORKRFCD-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- HGAZMNJKRQFZKS-UHFFFAOYSA-N chloroethene;ethenyl acetate Chemical compound ClC=C.CC(=O)OC=C HGAZMNJKRQFZKS-UHFFFAOYSA-N 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- AZUPEYZKABXNLR-UHFFFAOYSA-N magnesium;selenium(2-) Chemical compound [Mg+2].[Se-2] AZUPEYZKABXNLR-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 208000007578 phototoxic dermatitis Diseases 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 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
- G02F1/133609—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
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a display device, which comprises a display panel and a backlight module. The backlight module comprises a light source, a fluorescent film and a porous layer. The fluorescent film is arranged on the back side of the display panel and comprises a plurality of quantum dot fluorescent powders. The porous layer is arranged between the fluorescent film and the display panel and covers the fluorescent film, wherein the porous layer comprises a plurality of pores. The display device of the invention improves the recovery rate of the first light generated by the light source by arranging the porous layer between the fluorescent film and the display panel or arranging the porous layer in the fluorescent film, thereby increasing the quantity and the brightness of the second light generated by the fluorescent film and reducing the manufacturing cost of the backlight module.
Description
Technical field
The present invention relates to a kind of display device, espespecially a kind of display device utilizing the conversion efficiency of the sub-dot fluorescent powder of porous gap layer lifting capacity.
Background technology
Liquid crystal indicator has been widely used in the electronic products such as mobile computer, digital camera, mobile phone or LCD TV, but due to liquid crystal indicator be non-spontaneous photosensitiveness, therefore need with backlight module just tool Presentation Function.
Along with the lifting of light-emitting diode technical level, the light emitting diode with small size, low operating current, low power consumption, life-span length and low cost and other advantages replaces the light source of cold-cathode fluorescence lamp (CCFL) as backlight module gradually.Because general single light emitting diode only can produce monochromatic light, therefore, red light emitting diodes, green LED and blue LED need be used, to blend white light for replacing cold-cathode fluorescence lamp with light emitting diode simultaneously.But along with the size of liquid crystal indicator is increasing, the area of the white light of backlight module required generation color and brightness uniformity is also increasing, and this kind of light mixing way easily produces the too high problem of mixed light irregular colour, high cost and power consumption.For this reason, industry separately develops blue LED and fluorescent powder packaging in an encapsulating structure, makes the some blue light of fluorescent powder Absorbable rod blue LED, and produces gold-tinted, and then by the blue light of gold-tinted and another part, to produce white light.But, in order to reach the white light meeting demand, the fluorescent powder number needs of this kind of light mixing way reaches some, and the blue light that light emitting diode produced need be recovered and is radiated on fluorescent powder in encapsulating structure, fluorescent powder is allowed to produce enough gold-tinteds, the color going out white light mixed by making can reach required requirement, and the temperature therefore in encapsulating structure is easily too high, and then affects the color that light emitting diode produces.Although separately develop quantum dot fluorescence powder at present, with improving luminous efficiency, but because its particle diameter is less than the wavelength of visible ray, because of the gap of light easily between quantum dot fluorescence powder, and do not absorbed, quantum dot fluorescence powder is not fully utilized, and then produces unexpected light color or irregular colour.Moreover above-mentioned light mixing way also easily produces the area source of brightness irregularities.In view of this, solve backlight module irregular colour, brightness disproportionation, luminous diode temperature too high with the blue light recovery problem such as too low, and reduce the real target of making great efforts for industry of cost of manufacture.
Summary of the invention
One of fundamental purpose of the present invention is to provide a kind of display device, to solve above-mentioned irregular colour, brightness disproportionation, the too high problem too low with the recovery of luminous diode temperature.
In order to achieve the above object, the invention provides a kind of display device, comprise a display panel and a backlight module.Display panel comprises a display surface and a back side, display surface and the back side positioned opposite to each other.Backlight module comprises a light source, a fluorescence membrane and a porous gap layer (porouslayer).Fluorescence membrane is arranged at the rear side of display panel, and wherein fluorescence membrane comprises multiple first quantum dot fluorescence powder.Porous gap layer is arranged between fluorescence membrane and display panel, and covers fluorescence membrane, and wherein porous gap layer comprises multiple hole.
Wherein, this porous gap layer comprises a factor of porosity, and between 20% to 80%, this factor of porosity is 1-W/ (D × V), W is the weight of this porous gap layer, and D is the density of material of this porous gap layer, and V is the volume of this porous gap layer.
Wherein, this porous gap layer comprises multiple particulate and multiple second quantum dot fluorescence powder, and this particulate is arranged in this hole, and this second quantum dot fluorescence powder is arranged in this particulate.
Wherein, this atomic quantity is less than the quantity of this hole.
Wherein, this backlight module separately comprises a reflector plate, be arranged between this light source and this fluorescence membrane, and this reflector plate comprises multiple groups of openings, respectively this groups of openings correspondence respectively this light-emitting component setting, and respectively this groups of openings comprises multiple perforate, the aperture of wherein respectively this perforate of this groups of openings is along with closely and more less with the distance of this corresponding light-emitting component.
Wherein, respectively this hole comprises a maximum diameter of hole, and respectively this perforate comprises an aperture, and respectively this aperture is greater than respectively this maximum diameter of hole.
In order to achieve the above object, the present invention separately provides a kind of display device, comprises a display panel and a backlight module.Display panel comprises a display surface and a back side, display surface and the back side positioned opposite to each other.Backlight module comprises a light source and a fluorescence membrane.Fluorescence membrane is arranged at the rear side of display panel, and wherein fluorescence membrane comprises a porous gap layer and multiple quantum dot fluorescence powder, and porous gap layer comprises multiple hole, and quantum dot fluorescence powder is arranged in the hole of porous gap layer.
Wherein, this fluorescence membrane separately comprises multiple particulate, is arranged in this hole, and this quantum dot fluorescence powder is arranged in this particulate.
Wherein, this atomic quantity is less than the quantity of this hole.
Wherein, this backlight module separately comprises a reflector plate, is arranged between this light source and this fluorescence membrane.
Wherein, this reflector plate comprises multiple groups of openings, respectively this groups of openings correspondence respectively this light-emitting component setting, and respectively this groups of openings comprises multiple perforate, and the aperture of respectively this perforate of this groups of openings is along with closely and more less with the distance of this corresponding light-emitting component.
Wherein, respectively this hole comprises a maximum diameter of hole, and respectively this perforate comprises an aperture, and respectively this aperture is greater than respectively this maximum diameter of hole.
Display device of the present invention by arranging porous gap layer or arrange porous gap layer in fluorescence membrane between fluorescence membrane and display panel, to improve the recovery of the first light that light source produces, and then increase fluorescence membrane produce quantity and the brightness of the second light, and reduce the cost of manufacture of backlight module.By porous gap layer, the first light and the second light not only effectively by scattering equably, also can be mixed equably, and make backlight module produce brightness uniformity and the uniform light of color, the color going out white light mixed by making can reach required requirement.Further, due to fluorescence membrane not with light-emitting element package in same structure, therefore, the problem that light mixing way of the present invention can avoid light-emitting component overheated.
Accompanying drawing explanation
Fig. 1 depicts the diagrammatic cross-section of the display device of first embodiment of the invention
Fig. 2 depicts the upper schematic diagram of the backlight module of first embodiment of the invention.
Fig. 3 depict the porous gap layer of first embodiment of the invention on look striograph.
Fig. 4 depicts a change type of the porous gap layer of first embodiment of the invention.
Fig. 5 depicts another change type of the porous gap layer of first embodiment of the invention.
Fig. 6 depicts the relation schematic diagram light intensity and rising angle of the concrete dynamic modulus layer when the incident angle that incident light injects porous gap layer is different.
Fig. 7 depicts the diagrammatic cross-section of the display device of second embodiment of the invention.
Fig. 8 depicts the enlarged diagram with the diffusion particle of the first quantum dot fluorescence powder of second embodiment of the invention.
Fig. 9 depicts the enlarged diagram with the diffusion particle of the first quantum dot fluorescence powder of third embodiment of the invention.
Figure 10 depicts the diagrammatic cross-section of the display device of fourth embodiment of the invention.
Figure 11 depicts the schematic diagram of the porous gap layer of fourth embodiment of the invention.
Figure 11 A illustrates the enlarged diagram of the porous gap layer mesoporosity of fourth embodiment of the invention.
Figure 12 depicts an atomic change type of fourth embodiment of the invention.
Figure 13 depicts the diagrammatic cross-section of the display device of fifth embodiment of the invention.
Figure 14 depicts the diagrammatic cross-section of the display device of sixth embodiment of the invention.
Figure 15 depicts the diagrammatic cross-section of the display device of seventh embodiment of the invention.
Figure 16 depicts the diagrammatic cross-section of the display device of eighth embodiment of the invention.
Figure 17 depicts the diagrammatic cross-section of the display device of ninth embodiment of the invention.
Figure 18 depicts the enlarged diagram of the porous gap layer of ninth embodiment of the invention.
Figure 19 depicts the diagrammatic cross-section of the display device of tenth embodiment of the invention.
Figure 20 depicts the diagrammatic cross-section of the display device of eleventh embodiment of the invention.
Wherein, Reference numeral:
10A, 10B, 10C, 10D, 10E, 10F, 10G display device
12 display panels
12a display surface
The 12b back side
14A, 14B, 14C, 14D, 14E, 14F, 14G, 14H, 14I, 14J backlight module
16A, 16B light source
18A, 18B, 18C, 18D fluorescence membrane
20A, 20B porous gap layer
201 holes
22 light-emitting components
24 circuit boards
26 reflection horizon
28 first quantum dot fluorescence powder
30 retes
32 reflector plates
34 groups of openings
34a perforate
36 dull and stereotyped diffusion sheets
38 microstructure diffusion sheets
40A, 40B diffusion particle
401 holes
42A, 42B, 42C particulate
44 second quantum dot fluorescence powder
46 diffusion sheets
48 light guide plate
50A, 50B, 50C first barrier layer
52 second barrier layers
A aperture
C1, C2, C3, C4, C5, C6 curve
T thickness
Embodiment
Please refer to Fig. 1 to Fig. 3, Fig. 1 depicts the diagrammatic cross-section of the display device of first embodiment of the invention, Fig. 2 depicts the upper schematic diagram of the backlight module of first embodiment of the invention, Fig. 3 depict the porous gap layer of first embodiment of the invention on look striograph.Wherein, be clear display display device, Fig. 1 only illustrates the region of corresponding single groups of openings and single light-emitting component, but the present invention is not limited to this, and display device may correspond to multiple groups of openings and multiple light-emitting component.As shown in Figure 1 to Figure 3, the display device 10A of the present embodiment comprises display panel 12 and a backlight module 14A.Display panel comprises a display surface 12a and a back side 12b, display surface 12a and back side 12b are positioned opposite to each other.In the present embodiment, display panel 12 can such as display panels or other need the panel in uniform backlight source, to demonstrate picture by backlight.Backlight module 14A is arranged at the back side 12b of display panel 12, and in order to produce a uniform plane white light.
Specifically, backlight module 14A comprises a light source 16A, a fluorescence membrane 18A and porous gap layer (porouslayer) 20A.In the present embodiment, light source 16A is arranged at immediately below display panel 12, and that is, the backlight module 14A of the present embodiment is straight-down negative, but the present invention is not as limit.Light source 16A can produce one first light, has a first wave length scope.For example, light source 16A can comprise multiple light-emitting component 22 and a circuit board 24.Light-emitting component 22 can be arranged on circuit board 24 in an array mode, light-emitting component 22 is electrically connected to control element by circuit board 24, and such as driving chip.Light source 16A alternative separately comprises a reflection horizon 26, is placed on circuit board 24, in order to first light of will advance towards circuit board 24, reflects and penetrates towards display panel 12, effectively to utilize the first light produced from light-emitting component 22.For example, light-emitting component 22 can be such as LED packaging element, and it comprises light-emitting diode chip for backlight unit, support and the packing colloid in order to coated light-emitting diode chip for backlight unit, but the present invention is not as limit.
Fluorescence membrane 18A is arranged at the side of the back side 12b of display panel 12, fluorescence membrane 18A in fact with display panel 12 tool formed objects.Specifically, light source 16A is arranged at below fluorescence membrane 18A, and that is, fluorescence membrane 18A is arranged between the back side 12b of display panel 12 and light source 16A.Further, fluorescence membrane 18A comprises multiple first quantum dot fluorescence powder 28, is converted to the second light in order to the first light produced by light source, and the second wave length scope of the second light is less than first wave length scope.For example, light-emitting component 22 can be blue light emitting element, and in order to produce blue light, and the second light that the first quantum dot fluorescence powder 28 produces can be gold-tinted, make part with the second light and can blend white light by first light of fluorescence membrane 18A, but the present invention is not limited thereto.The first different quantum dot fluorescence powder 28 also can produce the second light of different colours, such as: the second light of different colours can be respectively ruddiness and green glow, but the present invention is not as limit.Or light-emitting component 22 can be ultraviolet ray emitting element, in order to produce ultraviolet, and the first quantum dot fluorescence powder 28 can produce ruddiness, blue light and green glow respectively, to blend white light.
In the present embodiment, each first quantum dot fluorescence powder 28 can comprise one first particle diameter, between 1 how rice to 10 how between rice.First quantum dot fluorescence powder 28 can comprise such as cadmium selenide (CdSe), cadmium sulfide (CdS), indium phosphide (InP), zinc sulphide (ZnS), zinc selenide (ZnSe), cadmium telluride (CdTe), magnesium selenide (MgSe) or zinc telluridse (ZnTe), but not as limit.The color of the second light that each first quantum dot fluorescence powder 28 produces adjusts by its material and the first particle diameter, with produce the white light of wish color.The fluorescence membrane 18A of the present embodiment comprises a rete 30, and the first quantum dot fluorescence powder 28 is dispersed in rete 30.For example, rete 30 comprises polycarbonate (polycarbonate), polymethylmethacrylate (PMMA), methyl methacrylate and styrol copolymer (MS), terephthalate second diester (PET), polystyrene (PS), cyclic olefine copolymer (COC), silica gel, epoxy resin (epoxyresin) or glass (SiO
2).
Porous gap layer 20A is arranged between fluorescence membrane 18A and display panel 12, and can cover fluorescence membrane 18A surface.Further, porous gap layer 20A comprises multiple hole 201, due to the existence of hole 201, allows the first light can be reflected after entering porous gap layer 20A, and then is recovered.Therefore, porous gap layer 20A can comprise one first penetrance (transmittance), between 5% to 50%, better between 20% to 50%, make to be reflected by porous gap layer 20A by a part for first light of fluorescence membrane 18A, first light can be recovered, and then be absorbed by the first quantum dot fluorescence powder 28, to improve the quantity of the second light that the first quantum dot fluorescence powder 28 is changed out.
In the present embodiment, porous gap layer 20A can comprise a thickness T, and owing to having hole 201, therefore a factor of porosity (porosity) can separately be comprised, its porosity is 1-W/ (D × V), wherein W is the weight of porous gap layer 20A, and D is the density of material of porous gap layer 20A, and V is the volume of porous gap layer 20A.Because the factor of porosity of porous gap layer 20A and thickness T all can affect its first penetrance, therefore when the first penetrance meets between 5% to 50%, factor of porosity is better between 20% to 80%, and thickness T is better between 15 microns to 800 microns, but is not limited thereto.Porous gap layer 20A can comprise PMMA, MS, polycarbonate (PC), PET, polypropylene (PP), tygon (PE), COC, polycyclic olefin polymer (COP), both mixing of glass or above-mentioned.In addition, each hole 201 comprises a maximum diameter of hole, between 0.5 micron to 1000 microns.Hole 201 has different shapes along with the difference of generation type, therefore maximum diameter of hole means the maximum gauge of formed hole 201.Preferably, each maximum diameter of hole is less than 10 microns, is more preferably less than 1 micron.In the present embodiment, hole 201 formed by stretching and producing to break, and therefore its shape can be strip, and hole 201 can be uniformly distributed in porous gap layer 20A, but the present invention is not limited to this.In another embodiment, then particle dissolving also formed by mixing soluble particle in porous material layer by hole 201.The shape of hole 201 can be air bubble-shaped or bulk, as shown in figs. 4 and 5, but is not limited thereto.In another embodiment, by Controlling Technology condition, the quantity of hole 201 can be closely and more more or fewer along with the distance with horizontal side or vertical side edge.The side up and down of picture shown by the corresponding display panel of horizontal side system difference, vertical side edge then distinguishes the left and right side of picture shown by corresponding display panel 12.In addition, the lower surface of the porous gap layer 20A of the present embodiment can be fitted with the upper surface of fluorescence membrane 18A, effectively to reclaim the first light, the present invention is not limited thereto.In another embodiment, porous gap layer 20A can first be arranged on a substrate, makes base plate supports porous gap layer 20A, then is arranged between fluorescence membrane 18A and display panel 12 by substrate.Or porous gap layer 20A can be located between two substrates.
For further illustrating the scattering properties of the porous gap layer 20A of the present embodiment, please refer to Fig. 6, it depicts the relation schematic diagram light intensity (luminous flux (Flux)/sterad (steradian)) and rising angle of the concrete dynamic modulus layer when the incident angle that incident light injects porous gap layer is different.As shown in Figure 6, curve C 1, C2, C3, C4, C5, C6 are the relation going out light intensity and rising angle representing the porous gap layer 20A when incident angle is 0,10,20,30,40 and 50 degree respectively.As can be known from Fig. 6, although the incident angle of incident light is different, but porous gap layer 20A maximum go out light intensity (i.e. the summit of curve C 1, C2, C3, C4, C5, C6) to be all positioned at rising angle be near 0 degree, and each curve C 1, C2, C3, C4, C5, C6 system are lambertian distribution (lambertiandistribution) light type.In other words, porous gap layer 20A can the first light of injecting of any angle of scattering and the second light effectively, makes the light penetrated from porous gap layer 20A be uniform face light.Therefore, not only effectively by the first light and the ground scattering of the second uniform light, also can be mixed the first light and the second light equably, make backlight module 14A produce brightness uniformity and the uniform light of color by the porous gap layer 20A of the present embodiment.
In the present embodiment, porous gap layer 20A can comprise one first bright dipping maximum intensity and one second bright dipping maximum intensity, fluorescence membrane 18A can comprise one the 3rd bright dipping maximum intensity and one the 4th bright dipping maximum intensity, wherein the first bright dipping maximum intensity and the 3rd bright dipping maximum intensity are respectively the maximum intensity of the light penetrated from porous gap layer 20A and fluorescence membrane 18A when the incident angle of incident light is 50 degree, and the second bright dipping maximum intensity and the 4th bright dipping maximum intensity are respectively the maximum intensity of the light penetrated from porous gap layer 20A and fluorescence membrane 18A when the incident angle of incident light is 0 degree.First bright dipping maximum intensity and the second bright dipping maximum intensity have one first ratio, and the 3rd bright dipping maximum intensity and the 4th bright dipping maximum intensity have one second ratio, and the first ratio is greater than the second ratio.Preferably, the first ratio is between 90% to 98%, and the second ratio is between 40% to 85%.
Please continue to refer to Fig. 1 and Fig. 2, backlight module 14A alternative separately comprises a reflector plate 32, is arranged between light source 16A and fluorescence membrane 18A, reflector plate 32 in fact with display panel 12 tool formed objects.In the present embodiment, reflector plate 32 comprises multiple groups of openings 34, and the corresponding each light-emitting component 22 of each groups of openings 34 is arranged, and that is the system of central authorities of each groups of openings 34 is arranged at directly over the central authorities of each light-emitting component 22.Each groups of openings 34 comprises multiple perforate 34a, wherein the aperture of the perforate 34a of each groups of openings 34 is along with closely and more less with the distance of corresponding light-emitting component 22, that is in each groups of openings 34, the perforate 34a nearer apart from the central authorities of each groups of openings 34, its aperture is less.When the first light runs into reflector plate 32, most first light can be reflected by reflector plate 32 and reclaim, until the first light passes through reflector plate 32 from perforate 34a.For example, reflector plate 32 can comprise one second penetrance, and the first penetrance is greater than the second penetrance.Because light-emitting component 22 is arrange in an array mode, therefore the first light produced by light-emitting component 22 is also heterogeneous, designed by the perforate of reflector plate 32, can homogenising is uneven effectively the first light, make can be presented by the first light of reflector plate 32 to distribute more uniformly.Furthermore, each perforate 34a comprises an aperture A, and each aperture A is greater than each maximum diameter of hole of hole 201.
In the present embodiment, backlight module 14A alternative separately comprises a dull and stereotyped diffusion sheet 36, is arranged between fluorescence membrane 18A and reflector plate 32, in order to evenly to spread the light penetrated from reflector plate 32.Dull and stereotyped diffusion sheet 36 comprises one the 5th bright dipping maximum intensity and one the 6th bright dipping maximum intensity, wherein the 5th bright dipping maximum intensity is the maximum intensity when the incident angle of incident light is 50 degree from the light of dull and stereotyped diffusion sheet 36 injection, and the 6th bright dipping maximum intensity is the maximum intensity when the incident angle of incident light is 0 degree from the light of dull and stereotyped diffusion sheet 36 injection.5th bright dipping maximum intensity and the 6th bright dipping maximum intensity have one the 3rd ratio, and the 3rd ratio is less than the first ratio.Preferably, the 3rd ratio is between 40% to 85%.
In addition, backlight module 14A alternative separately comprises a microstructure diffusion sheet 38, is arranged between porous gap layer 20A and display panel 12, in order to collect the light penetrated from porous gap layer 20A, to promote light utilization.Microstructure diffusion sheet 38 can comprise a plurality of microstructure (not shown), is located thereon surface, and microstructure can be such as ridge-like structure, but not as limit.In the present embodiment, microstructure diffusion sheet 38 can comprise one the 7th bright dipping maximum intensity and one the 8th bright dipping maximum intensity, wherein the 7th bright dipping maximum intensity is the maximum intensity when the incident angle of incident light is 50 degree from the light of microstructure diffusion sheet 38 injection, and the 8th bright dipping maximum intensity is the maximum intensity when the incident angle of incident light is 0 degree from the light of microstructure diffusion sheet 38 injection.7th bright dipping maximum intensity and the 8th bright dipping maximum intensity have one the 4th ratio, and the 4th ratio is greater than the first ratio or the second ratio.Preferably, the 4th ratio is between 105% to 160%.
In addition, the backlight module 14A of the present embodiment is by arranging porous gap layer 20A between the fluorescence membrane 18A of convertible light color and display panel 12, to improve the recovery of the first light that light source 16A produces, so increase fluorescence membrane 18A produce quantity and the brightness of the second light.By this, compared to the backlight module not being provided with porous gap layer, the backlight module 14A of the present embodiment can be issued to the brightness of the second identical light in the situation of the quantity reducing the first quantum dot fluorescence powder 28 in fluorescence membrane 18A, and then reduces the cost of manufacture of backlight module 14A.In addition, although the particle diameter of the first quantum dot fluorescence powder 28 is between 1 how rice to 10 how between rice, be less than the wavelength of visible ray, but the backlight module 14A of the present embodiment improves the recovery of the first light by porous gap layer 20A, first quantum dot fluorescence powder 28 can be fully utilized, and then produce the light color meeting expection.Moreover by porous gap layer 20A, the first light and the second light not only effectively by scattering equably, also can be mixed equably, make backlight module 14A produce brightness uniformity and the uniform light of color.Because the fluorescence membrane 18A of the present embodiment is not encapsulated in same structure with light-emitting component 22, but there is gap digit therebetween, therefore the light mixing way of the present embodiment problem that light-emitting component 22 can be avoided overheated.
Display device of the present invention is not limited with above-described embodiment.Hereafter continuation is disclosed other embodiments of the invention or change type, so for the purpose of simplifying the description and the difference highlighted between each embodiment or change type, hereinafter uses identical label to mark similar elements, and no longer counterweight again part repeat.
Please refer to Fig. 7 and Fig. 8, Fig. 7 depicts the diagrammatic cross-section of the display device of second embodiment of the invention, and Fig. 8 depicts the enlarged diagram with the diffusion particle of the first quantum dot fluorescence powder of second embodiment of the invention.As illustrated in figs. 7 and 8, the present embodiment provides another display device 10B.Compared to the first embodiment, the fluorescence membrane 18B of the backlight module 14B of the present embodiment comprises multiple diffusion particle 40A, and the first quantum dot fluorescence powder 28 is at least partially distributed in diffusion particle 40A.Preferably, the first quantum dot fluorescence powder 28 is all arranged in diffusion particle 40A.Because the first quantum dot fluorescence powder 28 not easily disperses and easy agglomerate again, to be therefore goodly dispersed in diffusion particle 40A, and diffusion particle 40A is uniformly distributed in rete 30.In the present embodiment, diffusion particle 40A can be solid particle, and the first quantum dot fluorescence powder 28 is distributed in diffusion particle 40A, but is not limited thereto.Diffusion particle 40A can comprise PMMA, MS, acronitrile-butadiene-styrene (ABS), polystyrene (PS), polyurethane (PU), both mixing of oxide or above-mentioned, and oxide can comprise glass (SiO
2), magnesium hydroxide (Mg (OH)
2), calcium carbonate (CaCO
3), barium sulphate (BaSO
4), aluminium oxide (Al
2o
3) or titanium dioxide (TiO
2) powder.In addition, the fluorescence membrane 18B of the present embodiment can comprise one the 9th bright dipping maximum intensity and 1 the tenth bright dipping maximum intensity, wherein the 9th bright dipping maximum intensity is respectively the maximum intensity when the incident angle of incident light is 50 degree from the light of fluorescence membrane 18B injection, and the tenth bright dipping maximum intensity is respectively the maximum intensity when the incident angle of incident light is 0 degree from the light of fluorescence membrane 18B injection.9th bright dipping maximum intensity and the tenth bright dipping maximum intensity have one the 5th ratio, are less than the first ratio.Preferably, the 5th ratio is between 40% and 85%.
Please refer to Fig. 9, Fig. 9 depicts the enlarged diagram with the diffusion particle of the first quantum dot fluorescence powder of third embodiment of the invention.As shown in Figure 9, compared to the second embodiment, the diffusion particle 40B of the present embodiment can be porous granule, and each porous granule has in hole 401 that multiple hole 401, first quantum dot fluorescence powder 28 is distributed in each porous granule and on the surface.
Please refer to Figure 10 and Figure 11, Figure 10 depicts the diagrammatic cross-section of the display device of fourth embodiment of the invention, Figure 11 depicts the porous gap layer schematic diagram of fourth embodiment of the invention, and Figure 11 A illustrates the enlarged diagram of the porous gap layer mesoporosity of fourth embodiment of the invention.As shown in Figure 10, Figure 11 and Figure 11 A, the present embodiment provides another display device 10C.Compared to the first embodiment, the porous gap layer 20B of the backlight module 14C of the present embodiment separately comprises multiple particulate 42A and multiple second quantum dot fluorescence powder 44, particulate 42A is arranged in hole 201, and the second quantum dot fluorescence powder 44 arranges and is distributed in particulate 42A.Particulate 42A can comprise PMMA, MS, PC, PET, PP, PE, both mixing of oxide or above-mentioned, and oxide can comprise SiO2, Mg (OH)
2, CaCO
3, BaSO
4, Al
2o
3or TiO
2powder, and particulate 42A can be used for the intensity and the hardness that strengthen pore layer 20B.In the present embodiment, particulate 42A comprises one the 3rd particle diameter, is less than the maximum diameter of hole of each hole 201, and particulate 42A can be arranged in hole 201.For example, the 3rd particle diameter can between 1 micron to 10 microns.Further, the quantity of particulate 42A is less than the quantity of hole 201.The particulate 42A of the present embodiment can be solid particle, but is not limited thereto.In another embodiment, particulate 42B also can be porous granule, and each porous granule has in hole 421 that multiple hole 421, second quantum dot fluorescence powder 44 is distributed in each porous granule and on the surface, as shown in figure 12.In another embodiment, particulate 42A, 42B also can be diffusion particle.
Please refer to Figure 13, it depicts the diagrammatic cross-section of the display device of fifth embodiment of the invention.As shown in figure 13, the present embodiment provides another display device 10D.Compared to the first embodiment, fluorescence membrane and dull and stereotyped diffusion sheet are integrated into same diaphragm by the backlight module 14D system of the present embodiment.Specifically, fluorescence membrane 18C comprises a diffusion sheet 46.That is, rete is diffusion sheet 46, and the first quantum dot fluorescence powder 28 is dispersed in diffusion sheet 46.Diffusion sheet 46 comprises one the 3rd penetrance, and the 3rd penetrance is greater than the first penetrance.
Please refer to Figure 14, it depicts the diagrammatic cross-section of the display device of sixth embodiment of the invention.As shown in figure 14, the present embodiment provides another display device 10E.Compared to the first embodiment, the backlight module 14E of the present embodiment is side-light type.In other words, backlight module 14E separately comprises a light guide plate 48, and wherein fluorescence membrane 18A is arranged between light guide plate 48 and back side 12b, and light source 16B is arranged at the side of light guide plate 48.
Please refer to Figure 15, it depicts the diagrammatic cross-section of the backlight module of seventh embodiment of the invention.As shown in figure 15, compared to the first embodiment, the backlight module 14F of the present embodiment separately comprises one first barrier layer 50A and one second barrier layer 52, wherein the first barrier layer 50A is arranged between porous gap layer 20A and fluorescence membrane 18A, and the second barrier layer 52 is arranged on the lower surface of fluorescence membrane 18A.Specifically, the upper surface of the first barrier layer 50A and fluorescence membrane 18A is fitted, and the second barrier layer 52 is fitted with the lower surface of fluorescence membrane 18A, makes the first barrier layer 50A and the second barrier layer 52 can be used for avoiding aqueous vapor and oxygen to affect the conversion efficiency of the first quantum dot fluorescence powder 28.
Please refer to Figure 16, it depicts the diagrammatic cross-section of the backlight module of eighth embodiment of the invention.As shown in figure 16, compared to the first embodiment, the backlight module 14G of the present embodiment separately comprises one first barrier layer 50B and one second barrier layer 52, and wherein the first barrier layer 50B is arranged on the upper surface of porous gap layer 20A, and the second barrier layer 52 is arranged on the lower surface of fluorescence membrane 18A.Specifically, the upper surface of the first barrier layer 50B and porous gap layer 20A is fitted, and the second barrier layer 52 is fitted with the lower surface of fluorescence membrane 18A, makes the first barrier layer 50B and the second barrier layer 52 can be used for avoiding aqueous vapor and oxygen to affect the conversion efficiency of the first quantum dot fluorescence powder 28.
Please refer to Figure 17 and Figure 18, Figure 17 depicts the diagrammatic cross-section of the display device of ninth embodiment of the invention, and Figure 18 depicts the enlarged diagram of the porous gap layer of ninth embodiment of the invention.As shown in figure 17, the present embodiment provides another display device 10F.Compared to the first embodiment, the porous gap layer 20C system of the backlight module 14H of the present embodiment is integrated in fluorescence membrane 18D.In the present embodiment, fluorescence membrane 18D comprises porous gap layer 20C, and backlight module 14H does not additionally comprise porous gap layer on fluorescence membrane 18D.That is, the rete of fluorescence membrane 18D is porous gap layer 20C.First quantum dot fluorescence powder 28 is be arranged in the hole 201 of porous gap layer 20C.Because the porous gap layer 20C of the present embodiment can be identical with the first embodiment, therefore seldom repeat at this.In addition, the fluorescence membrane 18D of the present embodiment separately can comprise multiple particulate 42C, is arranged in hole 201, and the first quantum dot fluorescence powder 28 arranges and is dispersed evenly in particulate 42C.The particulate 42C of the present embodiment can be identical with above-mentioned 4th embodiment, therefore seldom repeats at this.
In the present embodiment, fluorescence membrane 18D can comprise 1 the 11 bright dipping maximum intensity and 1 the 12 bright dipping maximum intensity, 11 bright dipping maximum intensity and the 12 bright dipping maximum intensity have one the 6th ratio, wherein the 11 bright dipping maximum intensity is the maximum intensity when the incident angle of incident light is 50 degree from the light of fluorescence membrane 18D injection, and the 12 bright dipping maximum intensity is the maximum intensity when the incident angle of incident light is 0 degree from the light of fluorescence membrane 18D injection.6th ratio is greater than the second ratio, and the 3rd ratio is greater than the 6th ratio.Preferably, the 6th ratio is between 90% to 98%.
Please refer to Figure 19, it depicts the diagrammatic cross-section of the backlight module of tenth embodiment of the invention.As shown in figure 19, compared to the 9th embodiment, the backlight module 14I of the present embodiment separately comprises one first barrier layer 50C and one second barrier layer 52, and wherein the first barrier layer 50C is arranged on the upper surface of fluorescence membrane 18D, and the second barrier layer 52 is arranged on the lower surface of fluorescence membrane 18D.Specifically, the upper surface of the first barrier layer 50C and fluorescence membrane 18D is fitted, and the second barrier layer 52 is fitted with the lower surface of fluorescence membrane 18D, makes the first barrier layer 50C and the second barrier layer 52 can be used for avoiding aqueous vapor and oxygen to affect the conversion efficiency of the first quantum dot fluorescence powder.
Please refer to Figure 20, it depicts the diagrammatic cross-section of the display device of eleventh embodiment of the invention.As shown in figure 20, the present embodiment provides another display device 10G.Compared to the 9th embodiment, the backlight module 14J of the present embodiment is side-light type.In other words, backlight module 14J separately comprises a light guide plate 48, and wherein fluorescence membrane 18D is arranged between light guide plate 48 and back side 12b, and light source 16B is arranged at the side of light guide plate 48.
In sum, display device of the present invention by arranging porous gap layer or arrange porous gap layer in fluorescence membrane between fluorescence membrane and display panel, to improve the recovery of the first light that light source produces, and then increase fluorescence membrane produce quantity and the brightness of the second light, and reduce the cost of manufacture of backlight module.By porous gap layer, the first light and the second light not only effectively by scattering equably, also can be mixed equably, and make backlight module produce brightness uniformity and the uniform light of color, the color going out white light mixed by making can reach required requirement.Further, due to fluorescence membrane not with light-emitting element package in same structure, therefore light mixing way of the present invention can avoid the problem that causes light-emitting component overheated.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claims in the present invention.
Claims (12)
1. a display device, is characterized in that, comprising:
One display panel, comprises a display surface and a back side, this display surface and this back side positioned opposite to each other; And
One backlight module, comprising:
One light source;
One fluorescence membrane, is arranged at this rear side of this display panel, and wherein this fluorescence membrane comprises multiple first quantum dot fluorescence powder; And
One porous gap layer, is arranged between this fluorescence membrane and this display panel, and wherein, this porous gap layer comprises multiple hole.
2. display device according to claim 1, it is characterized in that, this porous gap layer comprises a factor of porosity, between 20% to 80%, this factor of porosity is 1-W/ (D × V), W is the weight of this porous gap layer, and D is the density of material of this porous gap layer, and V is the volume of this porous gap layer.
3. display device according to claim 1, is characterized in that, this porous gap layer comprises multiple particulate and multiple second quantum dot fluorescence powder, and this particulate is arranged in this hole, and this second quantum dot fluorescence powder is arranged in this particulate.
4. display device according to claim 3, is characterized in that, this atomic quantity is less than the quantity of this hole.
5. display device according to claim 1, it is characterized in that, this backlight module separately comprises a reflector plate, be arranged between this light source and this fluorescence membrane, and this reflector plate comprises multiple groups of openings, respectively this groups of openings correspondence respectively this light-emitting component setting, and respectively this groups of openings comprises multiple perforate, the aperture of wherein respectively this perforate of this groups of openings is along with closely and more less with the distance of this corresponding light-emitting component.
6. display device according to claim 5, is characterized in that, respectively this hole comprises a maximum diameter of hole, and respectively this perforate comprises an aperture, and respectively this aperture is greater than respectively this maximum diameter of hole.
7. a display device, is characterized in that, comprising:
One display panel, comprises a display surface and a back side, this display surface and this back side positioned opposite to each other; And
One backlight module, comprising:
One light source; And
One fluorescence membrane, is arranged at this rear side of this display panel, and this fluorescence membrane comprises a porous gap layer and multiple quantum dot fluorescence powder, and this porous gap layer comprises multiple hole, and this quantum dot fluorescence powder is arranged in this hole of this porous gap layer.
8. display device according to claim 7, is characterized in that, this fluorescence membrane separately comprises multiple particulate, is arranged in this hole, and this quantum dot fluorescence powder is arranged in this particulate.
9. display device according to claim 7, is characterized in that, this atomic quantity is less than the quantity of this hole.
10. display device according to claim 7, is characterized in that, this backlight module separately comprises a reflector plate, is arranged between this light source and this fluorescence membrane.
11. display device according to claim 10, it is characterized in that, this reflector plate comprises multiple groups of openings, respectively this groups of openings correspondence respectively this light-emitting component setting, and respectively this groups of openings comprises multiple perforate, the aperture of respectively this perforate of this groups of openings is along with closely and more less with the distance of this corresponding light-emitting component.
12. display device according to claim 11, is characterized in that, respectively this hole comprises a maximum diameter of hole, and respectively this perforate comprises an aperture, and respectively this aperture is greater than respectively this maximum diameter of hole.
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| TW104137982 | 2015-11-18 | ||
| TW104137982A TWI557483B (en) | 2015-11-18 | 2015-11-18 | Display device |
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Also Published As
| Publication number | Publication date |
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| CN105446008B (en) | 2019-02-01 |
| TW201719251A (en) | 2017-06-01 |
| TWI557483B (en) | 2016-11-11 |
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