CN206920770U - A kind of backlight - Google Patents
A kind of backlight Download PDFInfo
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- CN206920770U CN206920770U CN201720336494.XU CN201720336494U CN206920770U CN 206920770 U CN206920770 U CN 206920770U CN 201720336494 U CN201720336494 U CN 201720336494U CN 206920770 U CN206920770 U CN 206920770U
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Abstract
The utility model embodiment discloses a kind of backlight, including：Excitation source, excitation source is blue light excitation source or purple light excited light source, for producing exciting light；Quantum dot diaphragm, it is arranged on the light direction of exciting light, and include the quantum dot of two or more colors, for under the irradiation of exciting light, produce emission spectrum, by controlling the chromaticity coordinates of the centre wavelength of excitation source and the quantum dot of two or more colors, so that backlight realizes 80%~110% N T S C gamut ranges.The utility model embodiment provides a kind of backlight, to realize the effect for improving backlight gamut range.
Description
【Technical field】
The utility model embodiment is related to display technology field, more particularly to a kind of backlight.
【Background technology】
Backlight is liquid crystal display (Liquid Crystal Display, LCD) light source supplier, in an lcd liquid
Crystal display assembly does not light in itself, and provides light source by the backlight positioned at the liquid crystal display die set back side.
Backlight is usually mainly to be made with light emitting diode (Light Emitting Diode, LED) as light source at present
With direct-light-type backlight and side-light backlight can be divided into from the position relationship of the light emission direction of light source and the exiting surface of backlight
Source.And the light source used in backlight generally induces white light by way of blue-ray LED and yellow fluorescent powder at present.
Backlight induces white light using the mode of blue-ray LED and yellow fluorescent powder, and backlight colour gamut can reach 72%
NTSC scope or so, but much can not meet the development of Display Technique requirement, wherein NTSC scope is (U.S.)
National television system committee (National Television Standards Committee) substandard color it is total
With.
【Utility model content】
The utility model embodiment provides a kind of backlight, to realize the effect for improving backlight gamut range.
The backlight that the utility model embodiment provides includes：
Excitation source, the excitation source is blue light excitation source or purple light excited light source, for producing exciting light；
Quantum dot diaphragm, it is arranged on the light direction of the exciting light, and includes the quantum dot of two or more colors, uses
In under the irradiation of exciting light, produce emission spectrum, by control the excitation source centre wavelength and it is described two more than
The chromaticity coordinates of the quantum dot of color, so that the backlight realizes 80%~110% NTSC scope.
Wherein, the centre wavelength of the blue light excitation source is between 450nm~490nm；The purple light excited light source
Centre wavelength between 380nm~425nm.
The quantum dot diaphragm includes red quantum dot, green quantum dot and blue quantum dot, by being excited described in control
The chromaticity coordinates of the quantum dot of the centre wavelength of light source and described two above colors so that the backlight realize 80%~
110% NTSC scope.
The chromaticity coordinates of the red quantum dot be R1 (x=0.63 ± 0.05, y=0.33 ± 0.05), R2 (x=0.65 ±
0.05, y=0.32 ± 0.05) or R3 (x=0.67 ± 0.05, y=0.31 ± 0.05)；
The chromaticity coordinates of the green quantum dot be G1 (x=0.29 ± 0.04, y=0.59 ± 0.05), G2 (x=0.27 ±
0.04, y=0.65 ± 0.05) or G3 (x=0.20 ± 0.04, y=0.71 ± 0.05)；
The chromaticity coordinates of the blue quantum dot be B1 (x=0.17 ± 0.02, y=0.10 ± 0.002), B2 (x=0.14 ±
0.02, y=0.08 ± 0.002) or B3 (x=0.15 ± 0.02, y=0.055 ± 0.001).
Alternatively, the excitation source is blue light excitation source, and the centre wavelength of the blue light excitation source is located at 455nm
Between~490nm；The chromaticity coordinates of the red quantum dot is R1 (x=0.63 ± 0.05, y=0.33 ± 0.05), the green
The chromaticity coordinates of quantum dot is G1 (x=0.29 ± 0.04, y=0.59 ± 0.05), and the chromaticity coordinates of the blue quantum dot is B1 (x
=0.17 ± 0.02, y=0.10 ± 0.002)；The backlight realization at least can reach 90% NTSC scope.
Alternatively, the excitation source is blue light excitation source, and the centre wavelength of the blue light excitation source is located at 465nm
Between~475nm；The chromaticity coordinates of the red quantum dot is R2 (x=0.65 ± 0.05, y=0.32 ± 0.05), the green
The chromaticity coordinates of quantum dot is G2 (x=0.27 ± 0.04, y=0.65 ± 0.05), and the chromaticity coordinates of the blue quantum dot is B2 (x
=0.14 ± 0.02, y=0.08 ± 0.002)；The backlight realization at least can reach 100% NTSC scope.
Alternatively, the excitation source is blue light excitation source, and the centre wavelength of the blue light excitation source is located at 450nm
Between~465nm；The chromaticity coordinates of the red quantum dot is R3 (x=0.67 ± 0.05, y=0.31 ± 0.05), the green
The chromaticity coordinates of quantum dot is G3 (x=0.20 ± 0.04, y=0.71 ± 0.05), and the chromaticity coordinates of the blue quantum dot is B3 (x
=0.15 ± 0.02, y=0.055 ± 0.001)；The backlight realization can reach 110% NTSC scope.
Alternatively, the excitation source is purple light excited light source, and the centre wavelength of the purple light excited light source is located at 410nm
Between~425nm；The chromaticity coordinates of the red quantum dot is R1 (x=0.63 ± 0.05, y=0.33 ± 0.05), the green
The chromaticity coordinates of quantum dot is G1 (x=0.29 ± 0.04, y=0.59 ± 0.05), and the chromaticity coordinates of the blue quantum dot is B1 (x
=0.17 ± 0.02, y=0.10 ± 0.002)；The backlight realization at least can reach 90% NTSC scope.
Alternatively, the excitation source is purple light excited light source, and the centre wavelength of the purple light excited light source is located at 400nm
Between~410nm；The chromaticity coordinates of the red quantum dot is R2 (x=0.65 ± 0.05, y=0.32 ± 0.05), the green
The chromaticity coordinates of quantum dot is G2 (x=0.27 ± 0.04, y=0.65 ± 0.05), and the chromaticity coordinates of the blue quantum dot is B2 (x
=0.14 ± 0.02, y=0.08 ± 0.002)；The backlight realization at least can reach 100% NTSC scope.
Alternatively, the excitation source is purple light excited light source, and the centre wavelength of the purple light excited light source is located at 380nm
Between~400nm；The chromaticity coordinates of the red quantum dot is R3 (x=0.67 ± 0.05, y=0.31 ± 0.05), the green
The chromaticity coordinates of quantum dot is G3 (x=0.20 ± 0.04, y=0.71 ± 0.05), and the chromaticity coordinates of the blue quantum dot is B3 (x
=0.15 ± 0.02, y=0.055 ± 0.001)；The backlight realization can reach 110% NTSC scope.
The utility model embodiment provides a kind of backlight, by quantum dot diaphragm arrangement excitation source light direction
On, and quantum dot diaphragm includes the quantum dot of two or more colors, is irradiated using blue light excitation source or purple light excited light source
Quantum dot diaphragm produces the white light of wide colour gamut, solves white light gamut range in the prior art and can not meet asking for Display Technique requirement
Topic, realize the effect for improving backlight gamut range.
【Brief description of the drawings】
Fig. 1 is the backlight working method schematic diagram that the utility model embodiment one provides；
Fig. 2 is the part-structure schematic diagram for the direct-light-type backlight that the utility model embodiment three provides；
Fig. 3 is the structural representation for the light-metering formula backlight that the utility model embodiment three provides.
【Embodiment】
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than to restriction of the present utility model.Further need exist for
It is bright, for the ease of description, the part related to the utility model rather than entire infrastructure are illustrate only in accompanying drawing.
Embodiment one
The utility model embodiment provides a kind of backlight, and the backlight can be as the backlight of liquid crystal display etc.
Source, it can apply on the products such as LCD TV, liquid crystal display, mobile phone and computer display screen or device.
The backlight that the utility model embodiment provides includes excitation source and quantum dot diaphragm.Excitation source swashs for blue light
Light emitting source or purple light excited light source, for producing exciting light.Quantum dot diaphragm, is arranged on the light direction of exciting light, and wraps
The quantum dot of two or more colors is included, under the irradiation of exciting light, emission spectrum being produced, by controlling in excitation source
Cardiac wave grows and the chromaticity coordinates of the quantum dot of two or more colors, so that backlight realizes 80%~110% NTSC scope.
Fig. 1 is the backlight working method schematic diagram that the utility model embodiment provides, as shown in figure 1, excitation source 11
The exciting light 110 sent is radiated on quantum dot diaphragm 12, and excitation quantum point diaphragm 12 sends new light beam 120.
Quantum dot is generally made up of the A of IIB in the periodic table of elements~VI or IIIA~VA races element material, and its particle diameter generally exists
2~20nm.For quantum dot because electronics and hole are by quantum confinement, continuous band structure becomes the discrete energy with molecular characterization
Level structure, fluorescence can be launched after being excited.Quantum dot is in necks such as solar cell, luminescent device, optical bio marks in recent years
Domain is widely used, and has special advantage in terms of for technical field of LED display.First, the transmitting light of quantum dot
Spectrum can be controlled by changing the size of quantum dot, and its emission spectrum can be made to cover whole visible region.With CdTe
Exemplified by (cadmium telluride) quantum dot, when its particle diameter grows into 4.0nm from 2.5nm, their launch wavelength can move from 510nm
To 660nm, its corresponding color turns to green from red change；Second, quantum dot has good photostability；Third, quantum
Point has wide PLE and narrow emission spectra, i.e., is achieved that using same excitation source and the quantum dot of different-grain diameter is carried out
Simultaneous shot, produce the color of multiple spectrum wavelength；Fourth, the fluorescence lifetime length of quantum dot, is the organic fluorescent dye fluorescence longevity
3~4 times of life, thus it is same excite light irradiation under, using quantum dot than inducing the bright of white light using yellow fluorescent powder
Degree can improve 10%~15%.
In the utility model embodiment, NTSC represents (U.S.) national television system committee, and NSTC gamut ranges are
The summation of color under NTSC standard.
Alternatively, the centre wavelength of blue light excitation source is between 450nm~490nm；The center of purple light excited light source
Wavelength is between 380nm~425nm.Blue light excitation source and purple light excited light source can be light emitting diode.Quantum dot film
Piece includes red quantum dot, green quantum dot and blue quantum dot.Red quantum dot refers to corresponding to the emission spectrum of quantum dot
Color is red.Green quantum dot refers to color corresponding to the emission spectrum of quantum dot for green.Blue quantum dot refers to quantum
Color corresponding to the emission spectrum of point is blueness.In other embodiments, quantum dot diaphragm can also be set to include amount of red
Son point and green quantum dot, and selective exitation light source is that blue light excitation source makes backlight produce white light.
Quantum dot diaphragm can be mixed by the way that red quantum dot, green quantum dot and blue quantum are pressed into ratio, with Asia
Gram force particle or silica gel are stirred, and quantum dot diaphragm is formed through low temperature and pressure.
Alternatively, the chromaticity coordinates of red quantum dot is R1 (x=0.63 ± 0.05, y=0.33 ± 0.05), R2 (x=0.65
± 0.05, y=0.32 ± 0.05) or R3 (x=0.67 ± 0.05, y=0.31 ± 0.05)；The chromaticity coordinates of green quantum dot is G1
(x=0.29 ± 0.04, y=0.59 ± 0.05), G2 (x=0.27 ± 0.04, y=0.65 ± 0.05) or G3 (x=0.20 ±
0.04, y=0.71 ± 0.05)；The chromaticity coordinates of blue quantum dot is B1 (x=0.17 ± 0.02, y=0.10 ± 0.002), B2 (x
=0.14 ± 0.02, y=0.08 ± 0.002) or B3 (x=0.15 ± 0.02, y=0.055 ± 0.001).Wherein, red quantum
The chromaticity coordinates of point refers to coordinate value of the red quantum dot emission spectrum corresponding color in chromatic diagram, the chromaticity coordinates of green quantum dot
Refer to coordinate value of the green quantum dot emission spectrum corresponding color in chromatic diagram, the chromaticity coordinates of blue quantum dot refers to amount of blue
Coordinate value of the son point emission spectrum corresponding color in chromatic diagram.
Exemplarily, the blue primary light that blue-ray LED is sent, it is radiated at containing red quantum dot, green quantum dot and blueness
On the quantum dot diaphragm of quantum dot.Quantum dot is CdTe (cadmium telluride) quantum dot.Wherein, the blue primary sent from blue-ray LED
For light irradiation in red quantum dot, excitated red quantum dot produces feux rouges；The blue primary light irradiation sent from blue-ray LED is green
During color quantum dot, green quantum dot is excited to produce green glow；The blue primary light irradiation sent from blue-ray LED is in blue quantum dot
When, excitated blue quantum dot produces blue light.The light for three kinds of colors that three kinds of color quantum dots are sent just generates white by mixing
Light, its color gamut value are determined by chromaticity coordinates of the light of three kinds of colors in chromatic diagram.
The utility model embodiment, by providing a kind of backlight, by quantum dot diaphragm arrangement excitation source light extraction
On direction, and quantum dot diaphragm includes the quantum dot of two or more colors, is come using blue light excitation source or purple light excited light source
Irradiate the white light that quantum dot diaphragm produces wide colour gamut.Because quantum dot has good photostability, and there is wide exciting light
Spectrum and narrow emission spectra, so for the mode using blue-ray LED and yellow fluorescent powder induces white light, use this reality
White light caused by the backlight provided with new embodiment has broader gamut range, solves white light colour gamut model in the prior art
Enclose and can not meet Display Technique requirement problem, realize the effect for improving backlight gamut range.
Embodiment two
The present embodiment is on the basis of above-described embodiment, and based on above-described embodiment, difference is, in above-described embodiment
On the basis of, combination one, selective exitation light source is blue light excitation source or purple light excited light source, selects the color of red quantum dot to sit
R1 is designated as, the chromaticity coordinates of green quantum dot is G1, and the chromaticity coordinates of blue quantum dot is B1, realizes backlight and at least can reach
90% NTSC scope；Combination two, selective exitation light source are blue light excitation source or purple light excited light source, select amount of red
Son point chromaticity coordinates be R2, the chromaticity coordinates of green quantum dot is G2, and the chromaticity coordinates of blue quantum dot is B2, make backlight realize to
100% NTSC scope is can reach less；Combination three, selective exitation light source are blue light excitation source or purple light excited light source,
The chromaticity coordinates for selecting red quantum dot is R3, and the chromaticity coordinates of green quantum dot is G3, and the chromaticity coordinates of blue quantum dot is B3, makes the back of the body
Light source realization can reach 110% NTSC scope.
Correspondingly, in combination one, wavelength blue light excitation source between 455nm~490nm centered on excitation source.Amount
The chromaticity coordinates of red quantum dot, green quantum dot and blue quantum dot that son point diaphragm includes be respectively R1 (x=0.63 ±
0.05, y=0.33 ± 0.05), G1 (x=0.29 ± 0.04, y=0.59 ± 0.05) and B1 (x=0.17 ± 0.02, y=0.10
± 0.002) the green quantum dot that the red quantum dot and chromaticity coordinates that are only R1 comprising chromaticity coordinates are G1 can also, be used.
Excitation source can also be centre wavelength purple light excited light source between 410nm~425nm, at this time, it may be necessary to match somebody with somebody
The quantum dot diaphragm comprising three kinds of color quantum dots is closed to produce white light.Wherein, the chromaticity coordinates of red quantum dot is R1, amount of green color
The chromaticity coordinates of son point is G1, and the chromaticity coordinates of blue quantum dot is B1.
In combination two, wavelength blue light excitation source between 465nm~475nm centered on excitation source.Quantum dot film
The chromaticity coordinates of red quantum dot, green quantum dot and blue quantum dot that piece includes is respectively R2 (x=0.65 ± 0.05, y=
0.32 ± 0.05), G2 (x=0.27 ± 0.04, y=0.65 ± 0.05) and B2 (x=0.14 ± 0.02, y=0.08 ±
0.002) the green quantum dot that the red quantum dot and chromaticity coordinates that are only R2 comprising chromaticity coordinates are G2 can also, be used.
Excitation source can also be centre wavelength purple light excited light source between 400nm~410nm, at this time, it may be necessary to match somebody with somebody
The quantum dot diaphragm comprising three kinds of color quantum dots is closed to produce white light.Wherein, the chromaticity coordinates of red quantum dot is R2, amount of green color
The chromaticity coordinates of son point is G2, and the chromaticity coordinates of blue quantum dot is B2.
In combination three, wavelength blue light excitation source between 450nm~465nm centered on excitation source.Quantum dot film
The chromaticity coordinates of red quantum dot, green quantum dot and blue quantum dot that piece includes is respectively R3 (x=0.67 ± 0.05, y=
0.31 ± 0.05), G3 (x=0.20 ± 0.04, y=0.71 ± 0.05) and B3 (x=0.15 ± 0.02, y=0.055 ±
0.001) the green quantum dot that the red quantum dot and chromaticity coordinates that are only R3 comprising chromaticity coordinates are G3 can also, be used.
Excitation source can also be centre wavelength purple light excited light source between 380nm~400nm, at this time, it may be necessary to match somebody with somebody
The quantum dot diaphragm comprising three kinds of color quantum dots is closed to produce white light.Wherein, the chromaticity coordinates of red quantum dot is R3, amount of green color
The chromaticity coordinates of son point is G3, and the chromaticity coordinates of blue quantum dot is B3.
It should be noted that above-mentioned lasing light emitter and quantum dot diaphragm can also have various other combinations, such as excitation source
Centered on wavelength blue light excitation source between 455nm~490nm.Red quantum dot that quantum dot diaphragm includes, amount of green color
Son point and blue quantum dot chromaticity coordinates be respectively R2 (x=0.65 ± 0.05, y=0.32 ± 0.05), G2 (x=0.27 ±
0.04, y=0.65 ± 0.05) and B2 (x=0.14 ± 0.02, y=0.08 ± 0.002).
The backlight that the utility model embodiment provides, the excitation source with different centre wavelength scopes is coordinated and contained
The quantum dot diaphragm of specific chromaticity coordinates quantum dot, correspondingly, combination one make backlight realize at least can reach 90% NTSC
Gamut range, combination two make backlight realization at least can reach 100% NTSC scope, and combining three realizes backlight
110% NTSC scope is can reach, so may be selected by suitable combination to meet Display Technique to backlight colour gamut
The requirement of scope.
Embodiment three
The present embodiment is on the basis of above-described embodiment, and based on above-described embodiment, difference is, with above-described embodiment
Based on, the blue-ray LED of specific wavelength is selected as excitation source, and coordinates the quantum dot film containing specific chromaticity coordinates quantum dot
Piece produces white light.
Fig. 2 is the part-structure schematic diagram for the direct-light-type backlight that the utility model embodiment three provides, as shown in Fig. 2
The backlight includes backlight bottom plate 21, and optical reflection film 22 is arranged on backlight bottom plate 21, and excitation source is blue-ray LED 24, and it is sent out
The centre wavelength for penetrating spectrum is 455nm, and multiple blue-ray LED 24 (not shown in Fig. 2) pasters are arranged on circuit board 23, and are passed through
Deposited copper wire on circuit board 23 is electrically connected, and a plurality of circuit board 23 is arranged on optical reflection film 22.The top of blue-ray LED 24 is set
Optical diaphragm group is equipped with, light direction of the optical diaphragm group along backlight includes light diffusing sheet 25, the and of quantum dot diaphragm 26 successively
Light brightness enhancement film 27, and include red quantum dot and green quantum dot in quantum dot diaphragm 26, wherein, the color of red quantum dot is sat
Mark is (x=0.63, y=0.33), and the chromaticity coordinates of green quantum dot is (x=0.29, y=0.59).Use support 28 and bottom plate
21 are engaged and fix light diffusing sheet 25, quantum dot diaphragm 26 and light brightness enhancement film 27, form complete backlight module.Use the back of the body
Light source can obtain 92% NTSC scope.
Fig. 3 is the structural representation for the light-metering formula backlight that the utility model embodiment three provides, as shown in figure 3, backlight
Source includes light source assembly 31 and light guide plate assembly 32, and light source assembly 31 is arranged at the side of light guide plate assembly 32.For light source group
Part 31, including light source bracket 311, the first optical reflection film 312, circuit board 313, blue-ray LED 314 and quantum dot diaphragm 315, its
In, the first optical reflection film 312 is arranged on light source bracket 311, and excitation source is blue-ray LED 314, the middle cardiac wave of its emission spectrum
A length of 460nm, multiple blue-ray LED 314 (not shown in Fig. 3) pasters are arranged on strip circuit plate 313, circuit board 313 and indigo plant
Light LED314 is electrically connected by applying copper wire.Circuit board 313 is arranged on the first optical reflection film 312.In blue-ray LED 314
Bar shaped quantum dot diaphragm 315 is fixed in top, and includes red quantum dot, green quantum dot and blueness in quantum dot diaphragm 315
Quantum dot, wherein, the chromaticity coordinates of red quantum dot is (x=0.65, y=0.32), and the chromaticity coordinates of green quantum dot is (x=
0.27, y=0.65), the chromaticity coordinates of blue quantum dot is (x=0.14, y=0.08).Light guide plate assembly 32 is included along backlight
Light direction the backlight bottom plate 321, the second optical reflection film 322, light guide plate 323, light diffusing sheet 324 and the light blast that set gradually
Film 325.Light guide plate 323 is provided with the second optical reflection film 322 close to the side of the side of backlight bottom plate 321 and non-incident light,
Light guide plate 323 is provided with site (not shown in Fig. 3) close to the one side of backlight bottom plate 321, and these sites make from the side of light guide plate 323
The incident light in face can be sent after superrefraction from the light-emitting area of needs.104% NTSC colors can be obtained using the backlight
Domain scope.
Pay attention to, above are only preferred embodiment of the present utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carried out for a person skilled in the art various bright
Aobvious change, readjust and substitute without departing from the scope of protection of the utility model.Therefore, although passing through above example
The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from
In the case that the utility model is conceived, other more equivalent embodiments can also be included, and the scope of the utility model is by appended
Right determine.
Claims (10)
- A kind of 1. backlight, it is characterised in that including：Excitation source, the excitation source is blue light excitation source or purple light excited light source, for producing exciting light；Quantum dot diaphragm, be arranged on the light direction of the exciting light, and include the quantum dot of two or more colors, for Under the irradiation of exciting light, emission spectrum is produced, passes through the centre wavelength for controlling the excitation source and described two above colors Quantum dot chromaticity coordinates so that the backlight realizes 80%~110% NTSC scope.
- 2. backlight according to claim 1, it is characterised in that the centre wavelength of the blue light excitation source is located at Between 450nm~490nm；The centre wavelength of the purple light excited light source is between 380nm~425nm.
- 3. backlight according to claim 2, it is characterised in that the quantum dot diaphragm includes red quantum dot, green Quantum dot and blue quantum dot, by controlling the centre wavelength of the excitation source and the quantum dot of described two above colors Chromaticity coordinates, so that the backlight realizes 80%~110% NTSC scope.
- 4. backlight according to claim 3, it is characterised in that the chromaticity coordinates of the red quantum dot is R1 (x=0.63 ± 0.05, y=0.33 ± 0.05), R2 (x=0.65 ± 0.05, y=0.32 ± 0.05) or R3 (x=0.67 ± 0.05, y= 0.31±0.05)；The chromaticity coordinates of the green quantum dot be G1 (x=0.29 ± 0.04, y=0.59 ± 0.05), G2 (x=0.27 ± 0.04, Y=0.65 ± 0.05) or G3 (x=0.20 ± 0.04, y=0.71 ± 0.05)；The chromaticity coordinates of the blue quantum dot be B1 (x=0.17 ± 0.02, y=0.10 ± 0.002), B2 (x=0.14 ± 0.02, y=0.08 ± 0.002) or B3 (x=0.15 ± 0.02, y=0.055 ± 0.001).
- 5. backlight according to claim 4, it is characterised in that the excitation source is blue light excitation source, the indigo plant The centre wavelength in phot-luminescence source is between 455nm~490nm；The chromaticity coordinates of the red quantum dot is R1 (x=0.63 ± 0.05, y=0.33 ± 0.05), the green quantum dot Chromaticity coordinates is G1 (x=0.29 ± 0.04, y=0.59 ± 0.05), the chromaticity coordinates of the blue quantum dot for B1 (x=0.17 ± 0.02, y=0.10 ± 0.002)；The backlight realization at least can reach 90% NTSC scope.
- 6. backlight according to claim 4, it is characterised in that the excitation source is blue light excitation source, the indigo plant The centre wavelength in phot-luminescence source is between 465nm~475nm；The chromaticity coordinates of the red quantum dot is R2 (x=0.65 ± 0.05, y=0.32 ± 0.05), the green quantum dot Chromaticity coordinates is G2 (x=0.27 ± 0.04, y=0.65 ± 0.05), the chromaticity coordinates of the blue quantum dot for B2 (x=0.14 ± 0.02, y=0.08 ± 0.002)；The backlight realization at least can reach 100% NTSC scope.
- 7. backlight according to claim 4, it is characterised in that the excitation source is blue light excitation source, the indigo plant The centre wavelength in phot-luminescence source is between 450nm~465nm；The chromaticity coordinates of the red quantum dot is R3 (x=0.67 ± 0.05, y=0.31 ± 0.05), the green quantum dot Chromaticity coordinates is G3 (x=0.20 ± 0.04, y=0.71 ± 0.05), the chromaticity coordinates of the blue quantum dot for B3 (x=0.15 ± 0.02, y=0.055 ± 0.001)；The backlight realization can reach 110% NTSC scope.
- 8. backlight according to claim 4, it is characterised in that the excitation source is purple light excited light source, the purple The centre wavelength in phot-luminescence source is between 410nm~425nm；The chromaticity coordinates of the red quantum dot is R1 (x=0.63 ± 0.05, y=0.33 ± 0.05), the green quantum dot Chromaticity coordinates is G1 (x=0.29 ± 0.04, y=0.59 ± 0.05), the chromaticity coordinates of the blue quantum dot for B1 (x=0.17 ± 0.02, y=0.10 ± 0.002)；The backlight realization at least can reach 90% NTSC scope.
- 9. backlight according to claim 4, it is characterised in that the excitation source is purple light excited light source, the purple The centre wavelength in phot-luminescence source is between 400nm~410nm；The chromaticity coordinates of the red quantum dot is R2 (x=0.65 ± 0.05, y=0.32 ± 0.05), the green quantum dot Chromaticity coordinates is G2 (x=0.27 ± 0.04, y=0.65 ± 0.05), the chromaticity coordinates of the blue quantum dot for B2 (x=0.14 ± 0.02, y=0.08 ± 0.002)；The backlight realization at least can reach 100% NTSC scope.
- 10. backlight according to claim 4, it is characterised in that the excitation source is purple light excited light source, the purple The centre wavelength in phot-luminescence source is between 380nm~400nm；The chromaticity coordinates of the red quantum dot is R3 (x=0.67 ± 0.05, y=0.31 ± 0.05), the green quantum dot Chromaticity coordinates is G3 (x=0.20 ± 0.04, y=0.71 ± 0.05), the chromaticity coordinates of the blue quantum dot for B3 (x=0.15 ± 0.02, y=0.055 ± 0.001)；The backlight realization can reach 110% NTSC scope.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621279806 | 2016-11-25 | ||
| CN201621279806X | 2016-11-25 |
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| CN206920770U true CN206920770U (en) | 2018-01-23 |
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| CN201720336494.XU Expired - Fee Related CN206920770U (en) | 2016-11-25 | 2017-03-31 | A kind of backlight |
| CN201720340276.3U Expired - Fee Related CN206918768U (en) | 2016-11-25 | 2017-03-31 | Backlight and display device |
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| CN201720340276.3U Expired - Fee Related CN206918768U (en) | 2016-11-25 | 2017-03-31 | Backlight and display device |
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| Country | Link |
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| CN (2) | CN206920770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990613A (en) * | 2016-11-25 | 2017-07-28 | 江苏华功第三代半导体产业技术研究院有限公司 | A kind of backlight |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209281807U (en) * | 2018-12-21 | 2019-08-20 | 南京杰迈视讯科技有限公司 | A kind of protection of LED electronic display and regulating device using electrochomeric glass |
-
2017
- 2017-03-31 CN CN201720336494.XU patent/CN206920770U/en not_active Expired - Fee Related
- 2017-03-31 CN CN201720340276.3U patent/CN206918768U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106990613A (en) * | 2016-11-25 | 2017-07-28 | 江苏华功第三代半导体产业技术研究院有限公司 | A kind of backlight |
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| Publication number | Publication date |
|---|---|
| CN206918768U (en) | 2018-01-23 |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 Termination date: 20210331 |