CN109739053A - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
- Publication number
- CN109739053A CN109739053A CN201910149990.8A CN201910149990A CN109739053A CN 109739053 A CN109739053 A CN 109739053A CN 201910149990 A CN201910149990 A CN 201910149990A CN 109739053 A CN109739053 A CN 109739053A
- Authority
- CN
- China
- Prior art keywords
- light
- wave
- backlight module
- light wave
- band
- 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
Abstract
The invention discloses a kind of backlight module and display devices, comprising: light source device and the quantum dot layer positioned at light source device light emission side；Light source device includes: the light source of outgoing excitation light wave, and emits the first fluorescent powder of first band light wave and the second fluorescent powder of excited target light wave excitation transmitting second band light wave positioned at the excited target light wave excitation of light source light emission side；The light wave of quantum dot layer excited target light wave excitation transmitting third wave band；First band light wave and second band light wave belong to different colours, and second band light wave and third wave band light wave belong to same color.The light of two kinds of colors is generated using excitation two kinds of fluorescent powders of light source activation, excitation light source activation quantum dot layer generates the relatively narrow monochromatic light of half-wave width.It avoids the transition of quanta point material from using, reduces the usage amount of cadmium based quantum dot material in backlight module.Meanwhile the proportion by adjusting phosphor material powder and quanta point material can make the colour gamut of backlight module be in higher level.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of backlight module and display devices.
Background technique
Liquid crystal display has become the main product of nowadays display field.Since liquid crystal display panel itself does not shine, so
Backlight module is needed to provide light source.Blue light-emitting diode (Light is generallyd use applied to the light source in backlight module at present
Emitting Diode, abbreviation LED) excitation yellow fluorescent powder form, be mixed to form white light.Due to the exciting light half of fluorescent powder
Wave is wide, therefore backlight module at this stage can not achieve very high colour gamut, generally between 70~85%NTSC.
In order to improve the colour gamut of backlight module, quanta point material is applied to backlight module, quanta point material is relatively narrow
Wavelength band generates more dense light and has high stability, has special and excellent visible region fluorescent emission property, and swash
Hair spectrum is continuously distributed, fluorescence peak position can be regulated and controled with its physical size.However used quanta point material is general at present
For luminous efficiency and the relatively narrow CdSe material of half-wave width, containing heavy metal Cd, when heavy metal Cd content is larger to environment and people
Body may cause threat.
Summary of the invention
The present invention provides a kind of backlight module and display devices, reduce quantum while to improve backlight module colour gamut
The usage amount of point material.
In a first aspect, the present invention provides a kind of backlight module, comprising: light source device and go out light positioned at the light source device
The quantum dot layer of side；Wherein,
The light source device includes: the light source of outgoing excitation light wave, and being swashed by described positioned at the light source light emission side
Encourage the first fluorescent powder of light wave excitation transmitting first band light wave and by excitation light wave excitation transmitting second band light wave
Second fluorescent powder；
Light wave of the quantum dot layer by excitation light wave excitation transmitting third wave band；
The first band light wave and the second band light wave belong to different colours, the second band light wave with it is described
Third wave band light wave belongs to same color.
In one possible implementation, in above-mentioned backlight module provided by the invention, first fluorescent powder is
Red fluorescence powder, second fluorescent powder are green emitting phosphor, and the quantum dot layer is green quantum dot layer.
In one possible implementation, in above-mentioned backlight module provided by the invention, red fluorescence powder is fluorination
Object red fluorescence powder；
The red light wavelength of the fluoride red fluorescence powder stimulated emission is 620~640nm.
In one possible implementation, in above-mentioned backlight module provided by the invention, the first band light wave
Peak strength and the second band light wave the ratio between peak strength in the range of 4:1~8:1.
In one possible implementation, in above-mentioned backlight module provided by the invention, the third wave band light wave
Peak wavelength be less than the second band light wave peak wavelength.
In one possible implementation, in above-mentioned backlight module provided by the invention, the third wave band light wave
Wavelength be 528~535nm；The wavelength of the second band light wave is 530~540nm.
In one possible implementation, in above-mentioned backlight module provided by the invention, the second band light wave
And the half-wave of the mixed light of the third wave band light wave is wide less than or equal to 40nm.
In one possible implementation, in above-mentioned backlight module provided by the invention, the light source is blue light light
Source；The launch wavelength of the blue light source is 440~470nm.
In one possible implementation, in above-mentioned backlight module provided by the invention, the backlight module outgoing
Feux rouges peak strength and green light the ratio between peak strength in the range of 2:1~4:1；
The range of the ratio between the peak strength of the blue light of backlight module outgoing and the peak strength of green light in 5:2~9:2
It is interior.
Second aspect, the present invention provides a kind of display device, including any of the above-described backlight module, and is located at the backlight
The display panel of mould group light emission side.
The present invention has the beneficial effect that:
Backlight module provided by the invention and display device, comprising: light source device and positioned at light source device light emission side
Quantum dot layer；Wherein, light source device includes: the light source of outgoing excitation light wave, and the excited target light wave positioned at light source light emission side
First fluorescent powder of excitation transmitting first band light wave and the second fluorescent powder of excited target light wave excitation transmitting second band light wave；
The light wave of quantum dot layer excited target light wave excitation transmitting third wave band；First band light wave belongs to different face from second band light wave
Color, second band light wave and third wave band light wave belong to same color.Two kinds are generated using excitation two kinds of fluorescent powders of light source activation
The light of color, excitation light source activation quantum dot layer generate the relatively narrow monochromatic light of half-wave width, and the light of two kinds of colors is mixed with excitation light, mentioned
For backlight.Thus the excessive use of quanta point material is avoided, the usage amount of cadmium based quantum dot material in backlight module is reduced, reaches
ROHS standard.Meanwhile light source cooperation fluorescent powder and quanta point material being motivated to use, by adjusting phosphor material powder and quantum dot material
The proportion of material can make the colour gamut of backlight module be in higher level.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, attached drawing described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is one of the cross section structure schematic diagram of backlight module provided in an embodiment of the present invention；
Fig. 2 is the cross section structure schematic diagram of light source device provided in an embodiment of the present invention；
Fig. 3 is the excitation spectrum of fluoride red fluorescence powder provided in an embodiment of the present invention and the exciting light of red quantum dot
Compose comparison diagram；
Fig. 4 is the launching light spectrogram of light source device provided in an embodiment of the present invention；
Fig. 5 is that the emission spectrum of light source device provided in an embodiment of the present invention and the excitation spectrum of green quantum dot compare
Figure；
Fig. 6 is the launching light spectrogram of backlight module provided in an embodiment of the present invention；
Fig. 7 is the two of the cross section structure schematic diagram of backlight module provided in an embodiment of the present invention；
Fig. 8 is the three of the cross section structure schematic diagram of backlight module provided in an embodiment of the present invention；
Fig. 9 is the cross section structure schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
The backlight module and display device of specific embodiment of the invention offer are provided with reference to the accompanying drawing.
The embodiment of the present invention in a first aspect, a kind of backlight module is provided, as shown in Figure 1, provided in an embodiment of the present invention
Backlight module includes: light source device 11 and the quantum dot layer 12 positioned at 11 light emission side of light source device.
Further, as shown in Fig. 2, light source device 11 includes: the light source 111 of outgoing excitation light wave, and it is located at light source
First fluorescent powder 112 of the excited target light wave excitation transmitting first band light wave of 111 light emission sides and the excitation transmitting of excited target light wave
Second fluorescent powder 113 of second band light wave.
In embodiments of the present invention, the light wave of 12 excited target light wave of quantum dot layer excitation transmitting third wave band；First band
Light wave and second band light wave belong to different colours, and second band light wave and third wave band light wave belong to same color.
The luminous efficiency and light conversion ratio of the quanta point material containing Cd are high, therefore quanta point material commercial at present mostly uses
Quanta point material containing Cd, however according to " about the instruction for using certain harmful components in electronic and electrical equipment is limited in "
(Restriction of Hazardous Substances, abbreviation ROHS) standard cadmium based quantum dot material is still made by limitation
With.
In embodiments of the present invention, the light wave of the first fluorescent powder 112 generation first band is excited using excitation light source 111,
The light wave for motivating light source 111 that the second fluorescent powder 113 is excited to generate second band.What the light wave and light source 111 of two wave bands were emitted
Excitation light wave belongs to the light wave of three wave bands, can be respectively as three kinds of primary lights.In addition to this, it is excited using excitation light source 111
Quantum dot layer 12 can produce the light wave of third wave band, and the light wave of the third wave band and the light wave of second band belong to identical face
Color, but the half band-width of light wave caused by quantum dot layer is narrower, is conducive to the saturation degree for improving the color primaries light.By adopting
With being used cooperatively for fluorescent powder and quantum dot layer, cadmium base in backlight module can be reduced to avoid the excessive use of quanta point material
The usage amount of quanta point material reaches ROHS standard.Meanwhile light source cooperation fluorescent powder and quanta point material being motivated to use, pass through
The proportion for adjusting phosphor material powder and quanta point material can make the colour gamut of backlight module be in higher level.
In a kind of enforceable mode, above-mentioned first fluorescent powder 112 can be red fluorescence powder, and the second fluorescent powder 113 can
For green emitting phosphor, quantum dot layer 12 is green quantum dot layer.Blue light source can be used in light source 111.It is excited using blue light source
Red fluorescence powder generates feux rouges, and blue light source excitation green emitting phosphor 113 generates a part of green light, then is excited by blue light source
Green quantum dot layer generates the relatively narrow green light of half-wave width, and the blue light being emitted with blue light source 112 is at white light.Thus it avoids red
Color quantum dot materials'use, while the usage amount of green quanta point material can also be reduced, reduce cadmium base unit weight in backlight module
The usage amount of point material, reaches ROHS standard.Meanwhile blue light source cooperation fluorescent powder and quanta point material use, and pass through adjusting
The proportion of phosphor material powder and quanta point material can make the colour gamut of backlight module be in higher level.
In practical applications, fluoride red fluorescence powder can be used in red fluorescence powder；Fluoride red fluorescence powder is stimulated
The red light wavelength penetrated is 620~640nm.It is fluorinated the fluosilicate that matter fluorescent powder is tetravalent manganese excitation, common fluoride fluorescence
Powder generally comprises tri- kinds of systems of KSF, KGF, KTF, and wherein KSF belongs to cubic system, and KGF, KTF belong to hexagonal crystal system.In this hair
In bright embodiment, using KSF red fluorescence powder.The excitation spectrum of KSF red fluorescence powder and the exciting light of red quantum dot material
Spectrum comparison is as shown in Figure 3, wherein the excitation spectrum of red quantum dot material is expressed as curve a, the laser of KSF red fluorescence powder
Spectrum is expressed as curve b, and as seen from Figure 3, the half-wave width of KSF red fluorescence powder has reached even narrower than red quantum dot
The wide level of the half-wave of material, and the excitation light intensity of KSF red fluorescence powder is suitable with the excitation light intensity of red quantum dot material, because
This, generates feux rouges in such a way that blue light source excites KSF red fluorescence powder in embodiments of the present invention, can not only reduce by one
The usage amount of part Cd, it can also be ensured that backlight module has higher colour gamut.In addition to this, due to green amount used at present
Therefore the son point producible colour gamut of material is, in embodiments of the present invention, to reduce green considerably beyond the requirement of backlight module
The usage amount of color quanta point material supplements a part of green light in such a way that blue light source excites green emitting phosphor, still can be with
The color gamut levels of backlight module are kept, while further reducing the usage amount of Cd.
The outgoing spectrum of above-mentioned light source device 11 provided in an embodiment of the present invention is as shown in figure 4, due to red fluorescence powder
Usage amount is greater than the usage amount of green emitting phosphor, therefore the intensity of the feux rouges of red fluorescence powder stimulated emission is greater than green emitting phosphor
The intensity of the green light of stimulated emission.In the specific implementation, the red light wavelength of KSF red fluorescence powder stimulated emission be 620~
640nm, the wavelength of the green light of green emitting phosphor stimulated emission are 530~540nm.
Since second band light wave and third wave band light wave belong to the light wave of same color, and first band light wave and second
Wave band light wave belongs to the light wave of different colours, and the light wave of first band corresponding color is only obtained by the first fluorescent powder stimulated emission
, the light wave of second band corresponding color is obtained by the second fluorescent powder and quantum dot layer stimulated emission, therefore can control first
The dosage of fluorescent powder and the second fluorescent powder so that first band light wave peak strength and second band light wave peak strength it
Than in the range of 4:1~8:1, the ratio of the two different colors of light wave of such stimulated emission is more suitable.
For example, when the first fluorescent powder is red fluorescence powder, it, can be by red fluorescence powder when the second fluorescent powder is green emitting phosphor
The ratio between the peak strength of the feux rouges of stimulated emission and the peak strength of green light of green emitting phosphor stimulated emission are 4:1~8:1's
In range.In order to which the colour gamut of backlight module to be maintained at greater than or equal to the level of 100%NTSC (CIE1931), present invention warp
Multiple experimental verification is crossed by the usage amount of green emitting phosphor and red fluorescence powder in control light source device 11, by red fluorescence
The control of the ratio between peak strength of green light of peak strength of the feux rouges of powder stimulated emission and green emitting phosphor stimulated emission 4:1~
In the range of 8:1, then the blue light and blue light source that cooperate blue light source to be emitted excite height caused by green quantum dot layer
Colour gamut green light can make the colour gamut of backlight module be greater than or equal to 100%NTSC (CIE1931), while farthest control
The usage amount of Cd in quanta point material processed.
Quanta point material can be absorbed high-energy light and inspire low-energy light, and the second fluorescent powder is excited in light source device
The light of transmitting and quantum dot layer stimulated emission same color, it is unnecessary produced by quantum dot layer absorption light source device in order to reduce
It shines, in embodiments of the present invention, selective exitation wavelength is set less than the quanta point material of the second fluorescent powder excitation peak wavelength
Set quantum dot layer.The peak wavelength for the third wave band light wave that quantum dot layer can in this way emitted is less than the second phosphor emission
The peak wavelength of second band light wave, to avoid the influence that is generated to quantum dot layer of light wave of the second fluorescent powder stimulated emission.?
In practical application, green quanta point material is can be used in above-mentioned quantum dot layer, and green emitting phosphor can be used in the second fluorescent powder, passes through control
The size of quanta point material processed makes the wavelength of the third wave band light wave of green quantum dot layer stimulated emission be 528~535nm；Together
When green emitting phosphor stimulated emission second band light wave wavelength be 530~540nm.In this way, green emitting phosphor stimulated emission
Green light peak wavelength be greater than green quantum dot layer stimulated emission green light peak wavelength, green quantum dot layer not will receive
The influence of green emitting phosphor transmitting green light.
The light of above-mentioned backlight module outgoing provided in an embodiment of the present invention is by for first band light wave, second band and third
The colour mixture light and light source emergent light of wave band mix, and above-mentioned colour mixture light may include the primary lights of three kinds of colors, in order to improve
The colour gamut of backlight module has higher requirements to the half band-width of above-mentioned three kinds of color light waves.The material of first fluorescent powder needs to select
Select the proportion that the second fluorescent powder and dot layer material are controlled so that the lesser material of the half band-width of first band light wave so that
The half band-width of the mixed light of second band light wave and third wave band light wave is smaller.Under normal conditions, second band light wave can be made
And the half-wave of the mixed light of third wave band light wave is wide less than or equal to 40nm.
Using the first fluorescent powder as red fluorescence powder, the second fluorescent powder is green emitting phosphor, and quantum dot layer is green quantum dot
For material, the emission spectrum of the outgoing spectrum of above-mentioned light source device 11 provided in an embodiment of the present invention and green quantum dot layer is such as
Shown in Fig. 5, wherein the emergent light stave of light source device 11 is shown as curve c, and the stimulated light emission stave of green quantum dot layer is shown as
Curve d.The blue light that light source device 11 is emitted can excite green quantum dot layer to generate green light, and green quantum dot layer stimulated emission
Green light half-wave width it is relatively narrow, in conjunction with light source device 11 emit blue light, feux rouges and part green light, it is available the present invention implement
The emission spectrum for the backlight module that example provides is as shown in Figure 6.The green light of above-mentioned backlight module outgoing provided in an embodiment of the present invention
For the mixing green light of the green light of the green light and green emitting phosphor stimulated emission of green quantum dot layer stimulated emission, feux rouges is red glimmering
The feux rouges of light powder stimulated emission, blue light are the blue light of blue light source outgoing.After backlight module is applied to liquid crystal display panel, color is sat
Mark is the peak strength of the light by red in backlight, green and blue three wave bands than determining, in order to meet the viewing of people
Experience, is typically designed as x=0.280 ± 0.015, y=0.290 ± 0.015, and wherein feux rouges mainly influences the big of x in chromaticity coordinates
Small, green light mainly influences the size of y in chromaticity coordinates.In order to guarantee the chromaticity coordinates of final liquid crystal display die set, blue light and green light
Peak strength ratio is generally located between 5:2~9:2；Model of the peak strength of feux rouges and green light than being generally located on 2:1~4:1
In enclosing.In order to guarantee that final colour gamut is greater than or equal to 100%NTSC (CIE1931), it is also necessary to guarantee green quantum dot layer by
Excite the half-wave of the mixing green light of the green light of the green light penetrated and green emitting phosphor stimulated emission is wide to be less than or equal to 40nm, feux rouges
Peak wavelength is greater than or equal to 625nm.
In practical applications, blue light-emitting diode (Light Emitting Diode, abbreviation can be used in blue light source
LED), the launch wavelength of blue-ray LED is 440~470nm, meets requirement.Tool can be used in the bracket of accommodating blue-light LED chip
There are the PC material or EMC material of reflection characteristic, in a small amount of green emitting phosphor of blue-ray LED enclosed inside and KSF red fluorescence
Powder, so that blue-ray LED can be emitted the feux rouges of blue light, a small amount of green light and stimulated emission.
Above-mentioned backlight module provided in an embodiment of the present invention both can be designed as down straight aphototropism mode set, may be designed in
Side entrance back module, for details, reference can be made to Fig. 7 and Fig. 8.In a kind of enforceable mode, as shown in fig. 7, backlight module includes
Multiple light sources device 11, each light source device 11 are arranged in array；Backlight module further include: positioned at each 11 light emission side of light source device
Diffuser plate 13 and optical diaphragm 14；Quantum dot layer 12 is located at the side that diffuser plate 13 deviates from each light source device 11；Optical diaphragm 14
Deviate from the side of diffuser plate 13 positioned at 12 layers of quantum dot.Diffuser plate 13 is used to the emergent light of each light source device 11 homogenizing rear vector
Son point layer 12 is emitted.Backlight module shown in Fig. 7 is down straight aphototropism mode set.
In another enforceable mode, as shown in figure 8, backlight module includes multiple light sources device 11, each light source device
Part is arranged in a column；Backlight module further include: positioned at the light guide plate 15 and optical diaphragm 14 of each 11 light emission side of light source device；Quantum
Point layer 12 is located at the light emission side of light guide plate 15；Optical diaphragm 14 is located at the side that quantum dot layer 12 deviates from light guide plate 15.Light guide plate
15 can receive the emergent light of each light source device 11 positioned at its incident side, and light is conducted and converts face light for linear light source
It is emitted behind source to quantum dot layer 12.Backlight module shown in Fig. 8 is side entrance back module.
Further, no matter which kind of backlight module being used, backlight module may also include that backboard (not indicating in figure), and
Reflecting plate 16 on backboard, reflecting plate 16 can reflect light source incidence to the light of backboard side to light emission side again,
To improve the service efficiency of light source.Optical diaphragm 14 can include: diffusion sheet and brightening piece；Wherein, diffusion sheet can be located at brightening piece
Lower section.Diffusion sheet can homogenize light, promote luminance；Brightening piece can increase the brightness of backlight module front emergent ray,
Improve light service efficiency.
The second aspect of the embodiment of the present invention provides a kind of display device, as shown in figure 9, provided in an embodiment of the present invention
Display device, comprising: any of the above-described backlight module 100, and the display panel 200 positioned at 100 light emission side of backlight module.This is aobvious
Showing device can be liquid crystal display panel, liquid crystal display, LCD TV etc., can also be the mobile terminals such as mobile phone, plate brain.Due to this
The principle that display device solves the problems, such as is similar to above-mentioned backlight module, therefore the implementation of the display device may refer to above-mentioned backlight
The implementation of mould group, overlaps will not be repeated.
Backlight module provided in an embodiment of the present invention and display device, comprising: light source device and go out positioned at light source device
The quantum dot layer of light side；Wherein, light source device includes: the light source of outgoing excitation light wave, and is excited positioned at light source light emission side
The first fluorescent powder and the excitation of excited target light wave for encouraging light wave excitation transmitting first band light wave emit the second of second band light wave
Fluorescent powder；The light wave of quantum dot layer excited target light wave excitation transmitting third wave band；First band light wave and second band light wave category
In different colours, second band light wave and third wave band light wave belong to same color.Using excitation two kinds of fluorescent powders of light source activation
Generate the light of two kinds of colors, excitation light source activation quantum dot layer generates the relatively narrow monochromatic light of half-wave width, the light of two kinds of colors and excitation
Light mixing, provides backlight.Thus the transition of quanta point material is avoided to use, cadmium based quantum dot material makes in reduction backlight module
Dosage reaches ROHS standard.Meanwhile light source cooperation fluorescent powder and quanta point material being motivated to use, by adjusting phosphor material powder
The colour gamut of backlight module can be made to be in higher level with the proportion of quanta point material.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of backlight module characterized by comprising light source device and the quantum dot positioned at the light source device light emission side
Layer；Wherein,
The light source device includes: the light source of outgoing excitation light wave, and positioned at the light source light emission side by the excitation light
Wave excitation emits the first fluorescent powder of first band light wave and by the second of excitation light wave excitation transmitting second band light wave
Fluorescent powder；
Light wave of the quantum dot layer by excitation light wave excitation transmitting third wave band；
The first band light wave and the second band light wave belong to different colours, the second band light wave and the third
Wave band light wave belongs to same color.
2. backlight module as described in claim 1, which is characterized in that first fluorescent powder is red fluorescence powder, described the
Two fluorescent powders are green emitting phosphor, and the quantum dot layer is green quantum dot layer.
3. backlight module as claimed in claim 2, which is characterized in that the red fluorescence powder is fluoride red fluorescence powder；
The red light wavelength of the fluoride red fluorescence powder stimulated emission is 620~640nm.
4. the backlight module as described in right wants 1, which is characterized in that the peak strength of the first band light wave and described second
The ratio between peak strength of wave band light wave is in the range of 4:1~8:1.
5. backlight module as described in claim 1, which is characterized in that the peak wavelength of the third wave band light wave is less than described
The peak wavelength of second band light wave.
6. backlight module as claimed in claim 5, which is characterized in that the wavelength of the third wave band light wave be 528~
535nm；The wavelength of the second band light wave is 530~540nm.
7. backlight module as described in claim 1, which is characterized in that the second band light wave and the third wave band light wave
Mixed light half-wave it is wide be less than or equal to 40nm.
8. backlight module as described in claim 1, which is characterized in that the light source is blue light source；The blue light source
Launch wavelength is 440~470nm.
9. backlight module as described in claim 1, which is characterized in that the peak strength of the feux rouges of backlight module outgoing with
The ratio between peak strength of green light is in the range of 2:1~4:1；
The ratio between the peak strength of the blue light of backlight module outgoing and the peak strength of green light are in the range of 5:2~9:2.
10. a kind of display device, which is characterized in that including such as described in any item backlight modules of claim 1-9, and be located at
The display panel of the backlight module light emission side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910149990.8A CN109739053A (en) | 2019-02-28 | 2019-02-28 | A kind of backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910149990.8A CN109739053A (en) | 2019-02-28 | 2019-02-28 | A kind of backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109739053A true CN109739053A (en) | 2019-05-10 |
Family
ID=66368791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910149990.8A Pending CN109739053A (en) | 2019-02-28 | 2019-02-28 | A kind of backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109739053A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109968A (en) * | 2020-01-13 | 2021-07-13 | 海信视像科技股份有限公司 | Display device and color temperature adjusting method thereof |
| CN113884472A (en) * | 2021-09-10 | 2022-01-04 | 福州大学 | Humidity detector based on luminous color interpretation and preparation method thereof |
| CN114578613A (en) * | 2020-11-30 | 2022-06-03 | 优美特创新材料股份有限公司 | Backlight module containing fluorescent powder and quantum dots |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150023055A1 (en) * | 2013-07-19 | 2015-01-22 | Samsung Display Co., Ltd. | Light source assembly, backlight assembly having the same and display apparatus having the same |
| US20150331278A1 (en) * | 2014-05-14 | 2015-11-19 | Japan Display Inc. | Display device |
| CN107167964A (en) * | 2017-06-26 | 2017-09-15 | 青岛海信电器股份有限公司 | A kind of backlight module and display device |
| CN107390427A (en) * | 2017-07-12 | 2017-11-24 | 青岛海信电器股份有限公司 | A kind of backlight module and display device |
| CN207799291U (en) * | 2018-01-18 | 2018-08-31 | 武汉保丽量彩科技有限公司 | A kind of high colour gamut illuminating module |
| CN108681147A (en) * | 2018-03-20 | 2018-10-19 | 青岛海信电器股份有限公司 | Quantum dot backlight module, liquid crystal display device |
-
2019
- 2019-02-28 CN CN201910149990.8A patent/CN109739053A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150023055A1 (en) * | 2013-07-19 | 2015-01-22 | Samsung Display Co., Ltd. | Light source assembly, backlight assembly having the same and display apparatus having the same |
| US20150331278A1 (en) * | 2014-05-14 | 2015-11-19 | Japan Display Inc. | Display device |
| CN107167964A (en) * | 2017-06-26 | 2017-09-15 | 青岛海信电器股份有限公司 | A kind of backlight module and display device |
| CN107390427A (en) * | 2017-07-12 | 2017-11-24 | 青岛海信电器股份有限公司 | A kind of backlight module and display device |
| CN207799291U (en) * | 2018-01-18 | 2018-08-31 | 武汉保丽量彩科技有限公司 | A kind of high colour gamut illuminating module |
| CN108681147A (en) * | 2018-03-20 | 2018-10-19 | 青岛海信电器股份有限公司 | Quantum dot backlight module, liquid crystal display device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109968A (en) * | 2020-01-13 | 2021-07-13 | 海信视像科技股份有限公司 | Display device and color temperature adjusting method thereof |
| CN114578613A (en) * | 2020-11-30 | 2022-06-03 | 优美特创新材料股份有限公司 | Backlight module containing fluorescent powder and quantum dots |
| CN113884472A (en) * | 2021-09-10 | 2022-01-04 | 福州大学 | Humidity detector based on luminous color interpretation and preparation method thereof |
| CN113884472B (en) * | 2021-09-10 | 2023-09-29 | 福州大学 | Humidity detector based on luminous color interpretation and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7859175B2 (en) | Illuminating device, display device and optical film | |
| US8310144B2 (en) | Illumination system and display device | |
| US10408426B2 (en) | Method and apparatus to enhance spectral purity of a light source | |
| US8541798B2 (en) | Semiconductor light emitting device, and backlight and display device comprising the semiconductor light emitting device | |
| US20150369988A1 (en) | Backlight module and display device | |
| JP5416270B2 (en) | Display device and television receiver | |
| WO2014132726A1 (en) | Liquid crystal display device | |
| CN104698680A (en) | Module and display equipment | |
| JP2010092705A (en) | Illuminating device and display device using this | |
| JP2007243135A (en) | Illuminating device, and display equipped with it | |
| JP2008041550A (en) | Lighting apparatus and display device with the same, and portable electronic device | |
| CN109739053A (en) | A kind of backlight module and display device | |
| JP2020520048A (en) | Light conversion film for backlight module, backlight module and display device | |
| CN206848648U (en) | A kind of backlight module and display device | |
| US20150369989A1 (en) | Backlight module and display device | |
| CN105301836A (en) | Direct-lit type backlight module and display device | |
| CN207799291U (en) | A kind of high colour gamut illuminating module | |
| CN107703676A (en) | A kind of optical film assembly, backlight module and display device | |
| CN107703674A (en) | A kind of optical film, backlight module and display device for backlight module | |
| CN108681147A (en) | Quantum dot backlight module, liquid crystal display device | |
| JP2008085026A (en) | Light-emitting device, lighting system, electrooptical device, and electronic equipment | |
| CN107703675A (en) | A kind of optical film assembly, backlight module and display device | |
| CN101294664A (en) | High color temperature LED light source system and manufacturing method thereof | |
| WO2011118274A1 (en) | Display device and television receiver | |
| CN107219683B (en) | Display device, backlight module and backlight source |
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 | ||
| CB02 | Change of applicant information |
Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant after: Hisense Video Technology Co.,Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Applicant before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190510 |
|
| RJ01 | Rejection of invention patent application after publication |