CN110308589A - Manufacturing method of light-emitting device, backlight module and display device - Google Patents
Manufacturing method of light-emitting device, backlight module and display device Download PDFInfo
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- CN110308589A CN110308589A CN201910579092.6A CN201910579092A CN110308589A CN 110308589 A CN110308589 A CN 110308589A CN 201910579092 A CN201910579092 A CN 201910579092A CN 110308589 A CN110308589 A CN 110308589A
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Classifications
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- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133624—Illuminating devices characterised by their spectral emissions
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
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- Optics & Photonics (AREA)
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Abstract
The embodiment of the invention discloses a manufacturing method of a light-emitting device, the light-emitting device, a backlight module and a display device, wherein the manufacturing method of the light-emitting device comprises the following steps: providing a substrate base plate; forming a plurality of light emitting elements on one side of a base substrate; the light-emitting elements are provided with various color blocks and various different main wavelength ranges, and the various color blocks and the various different main wavelength ranges correspond to light of the same color; using two adjacent light-emitting elements as a light-emitting element group; the average chromaticity value of the color blocks of the two light-emitting elements of the same light-emitting element group is within a first threshold range, and the average dominant wavelength value of the dominant wavelength ranges of the two light-emitting elements of the same light-emitting element group is within a second threshold range. The technical scheme provided by the embodiment of the invention is beneficial to reducing the fluctuation range of the white point coordinate and ensuring higher brightness and contrast so as to ensure that a user has better user experience.
Description
Technical field
The present invention relates to field of display technology, and in particular to a kind of production method of light emitting device, light emitting device, backlight mould
Group and display device.
Background technique
With the development of display technology, requirement of the user to display is also higher and higher.In actual production, display
Performance inconsistency is smaller, under the premise of meeting user's requirement, is more easily reduced production cost.For the color developing of display,
By taking liquid crystal display device as an example, color developing by light emitting device and liquid crystal display panel in backlight module optical element
It determines, light emitting device may include a plurality of light-emitting elements.
In general, the same optical element of liquid crystal display panel can correspond to several different color blocks in liquid crystal display device
Light-emitting component, to reduce production cost, but will lead to so also that 8 coordinates fluctuation of display device is larger.To understand
Certainly this problem usually carries out white point correction using gamma.But the brightness and comparison of liquid crystal display device can be lost
Degree, causes user experience to decline.
Summary of the invention
The embodiment of the invention provides a kind of production method of light emitting device, light emitting device, backlight module and display device,
While reducing white point coordinates fluctuation range, it is ensured that higher brightness and contrast, to ensure that user has preferable use
Family experience.
In a first aspect, the embodiment of the invention provides a kind of production methods of light emitting device, comprising:
Underlay substrate is provided；
A plurality of light-emitting elements are formed in the underlay substrate side；
Wherein, the multiple light-emitting component has a variety of different color blocks and a variety of different dominant wavelength ranges, described a variety of
Different color blocks and a variety of different dominant wavelength ranges correspond to the light of same color；By the two neighboring light-emitting component
As a light emitting device group；The coloration average value of the color lump of two light-emitting components of same light emitting device group is in first threshold model
In enclosing, and the dominant wavelength average value of the dominant wavelength ranges of two light-emitting components of same light emitting device group is in second threshold range
It is interior.
Second aspect, the embodiment of the invention also provides a kind of light emitting devices, comprising:
Underlay substrate；
In a plurality of light-emitting elements that the side of the underlay substrate is formed；
Wherein, the multiple light-emitting component has a variety of different color blocks and a variety of different dominant wavelength ranges, described a variety of
Different color blocks and a variety of different dominant wavelength ranges correspond to the light of same color；By the two neighboring light-emitting component
As a light emitting device group；The coloration average value of the color lump of two light-emitting components of same light emitting device group is in first threshold model
In enclosing, and the dominant wavelength average value of the dominant wavelength ranges of two light-emitting components of same light emitting device group is in second threshold range
It is interior.
The third aspect, the embodiment of the invention also provides a kind of backlight module, any hair provided including second aspect
Electro-optical device.
Fourth aspect, the embodiment of the invention also provides a kind of display device, the backlight module provided including third invention；
It further include liquid crystal display panel；
The liquid crystal display panel is set to the light emission side of the backlight module.
5th aspect, the embodiment of the invention also provides a kind of display device, any hair provided including second aspect
Electro-optical device.
The production method of light emitting device provided in an embodiment of the present invention, by the way that the multiple of underlay substrate side formation are arranged in
In light-emitting component, a plurality of light-emitting elements have a variety of different color blocks and an a variety of different dominant wavelength ranges, a variety of different color blocks with
And a variety of different dominant wavelength ranges correspond to the light of same color；Using two neighboring light-emitting component as a light-emitting component
Group；The coloration average value of the color lump of two light-emitting components of same light emitting device group in first threshold range, and it is same shine
The dominant wavelength average value of the dominant wavelength ranges of two light-emitting components of element group is within the scope of second threshold.I.e. to the same hair
While the light-emitting component of optical element group carries out color lump matching, match its dominant wavelength ranges, thus can realize chromaticity coordinates to compared with
While small fluctuation range restrains, realize that dominant wavelength ranges are restrained to lesser fluctuation range；Dominant wavelength fluctuation can be reduced
Range, thus can avoid due to dominant wavelength fluctuate it is larger caused by white point coordinates fluctuate larger problem；Meanwhile it no longer needing to lead to
It crosses gamma and carries out white point correction.As a result, display brightness can will not be lost while reducing white point coordinates fluctuation range
With display contrast, to can ensure that display picture brightness and contrast with higher, it is advantageously ensured that user have it is preferable
User experience.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the production method of light emitting device provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of light emitting device provided in an embodiment of the present invention；
Fig. 3 is a kind of color lump division provided in an embodiment of the present invention and matching way schematic diagram；
Fig. 4 is a kind of dominant wavelength method of determination schematic diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of spectral range schematic diagram provided in an embodiment of the present invention；
Fig. 6 is a kind of dominant wavelength division provided in an embodiment of the present invention and matching way schematic diagram；
Fig. 7 is the flow diagram of the production method of another light emitting device provided in an embodiment of the present invention；
Fig. 8 is the flow diagram of the production method of another light emitting device provided in an embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of light emitting device provided in an embodiment of the present invention；
Figure 10 is the structural schematic diagram of another light emitting device provided in an embodiment of the present invention；
Figure 11 is the structural schematic diagram of another light emitting device provided in an embodiment of the present invention；
Figure 12 is the structural schematic diagram of another light emitting device provided in an embodiment of the present invention；
Figure 13 is a kind of structural schematic diagram of backlight module provided in an embodiment of the present invention；
Figure 14 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention；
Figure 15 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention；
Figure 16 is a kind of white point fluctuation range contrast schematic diagram of display device provided in an embodiment of the present invention；
Figure 17 is a kind of chromaticity coordinates range schematic diagram of backlight module provided in an embodiment of the present invention；
Figure 18 is the white point fluctuation range contrast schematic diagram of another display device provided in an embodiment of the present invention；
Figure 19 is the white point fluctuation range schematic diagram by a kind of Figure 17 display device formed.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing and it is not all.
Fig. 1 is a kind of flow diagram of the production method of light emitting device provided in an embodiment of the present invention.Referring to Fig.1, should
Production method includes:
S110, underlay substrate is provided.
Wherein, underlay substrate can be rigid substrate substrate or flexible substrate substrate；Rigid substrate substrate may include glass base
Plate or silicon substrate, flexible substrate substrate may include polyimide substrate or stainless steel substrate.The underlay substrate can also be this field
Other kinds of underlay substrate, the embodiment of the present invention known to technical staff are not construed as limiting this.
Wherein, underlay substrate may also include the circuit structure that driving light-emitting component works normally, example in addition to including substrate
Such as may include integrated drive electronics, scan drive circuit, pixel-driving circuit or skilled person will appreciate that other circuits
Structure, the embodiment of the present invention are not construed as limiting this.
Wherein, which can be to form circuit structure and those skilled in the art by base-plate cleaning, drying, according to process
Other known processes, the embodiment of the present invention are not construed as limiting this.
S120, a plurality of light-emitting elements are formed in underlay substrate side.
Wherein, which may include that will be electrically connected to the one of underlay substrate in physically independent a plurality of light-emitting elements
Side surface.Illustratively, the mode of electrical connection may include bonding, routing, gluing or skilled person will appreciate that other electricity
Connection type, the embodiment of the present invention are not construed as limiting this.
Illustratively, it can refer to Fig. 2, form a plurality of light-emitting elements 910 in the side of underlay substrate 900.
Wherein, a plurality of light-emitting elements have a variety of different color blocks and a variety of different dominant wavelength ranges, a variety of different color blocks
And a variety of different dominant wavelength ranges correspond to the light of same color.Illustratively, the corresponding light of a plurality of light-emitting elements can be
Blue light, feux rouges, green light or skilled person will appreciate that other colors light, the embodiment of the present invention is not construed as limiting this.
Wherein, color lump and dominant wavelength can all define in chromatic diagram.
Illustratively, color lump can be regarded as the set of the chromaticity coordinates in a regional scope in chromatic diagram, which exists
Polygonal region can be presented as in chromatic diagram.Show six color lumps in quadrangle in Fig. 3, respectively 201,202,203,
204,205 and 206, or can be indicated respectively with A, B, C, D, E and F, which can be indicated with 20.In other embodiments
In, also the chromaticity coordinates of a plurality of light-emitting elements can be divided into other shapes or number according to the demand of the production method of light emitting device
The color lump of amount, the embodiment of the present invention are not construed as limiting this.
Illustratively, dominant wavelength can be regarded as the color institute for the main light that eyes can see that light source (i.e. light-emitting component) issues
Corresponding wavelength.For the chromatic diagram 300 shown in Fig. 4, in chromatic diagram 300, firstly, selected standard white point light source,
O (x in conventional selection D65 light source, chromaticity coordinates such as Fig. 40,y0) shown in；Then, pass through linking objective coordinate points and standard white
The chromaticity coordinates of point light source, and extend, the intersection point of extended line or reverse extending line and shape of a hoof boundary, that is, represent target seat
The corresponding dominant wavelength of punctuate.
Illustratively, two coordinates of targets points, respectively P (x are shown in Fig. 41,y1) and Q (x2,y2), by connecting O
Point and P point, and extend, the intersection point P10 of extended line and shape of a hoof boundary, the corresponding dominant wavelength of as P point；By connecting O point
With Q point, and extend, the intersection point Q10 of reverse extending line and shape of a hoof boundary, the corresponding dominant wavelength of as Q point.
It should be noted that illustrating only the shape of a hoof boundary in chromatic diagram 300 in Fig. 4, and do not show that in the shape of a hoof
The distribution of color in portion, internal distribution of color mode is it is known to those skilled in the art that the embodiment of the present invention does not repeat this
Also it is not construed as limiting.
In addition, it should be noted that, color lump structure 20 shown in Fig. 3 is the regional area of chromatic diagram shown in Fig. 4
The selection of enlarged drawing, the regional area can be determining according to the color coordinates distribution range of light-emitting component, can be in red light region, green Region
Domain, blue region or white light field, the embodiment of the present invention are not construed as limiting this.
Illustratively, with continued reference to Fig. 2, it regard two neighboring light-emitting component 910 as a light emitting device group 920；It is same
The coloration average value of the color lump of two light-emitting components 910 of light emitting device group 920 is in first threshold range, and same luminous member
The dominant wavelength average value of the dominant wavelength ranges of two light-emitting components 910 of part group 920 is within the scope of second threshold.
Wherein, using a color lump as an area coloration bin, different color lumps is as the different areas coloration bin；By one
Dominant wavelength ranges are as an area wave band bin, and different dominant wavelength ranges are as the different areas wave band bin.Then, same luminous member
Two light-emitting components 910 of part group 920 are while coloration mixes bin, it can be achieved that wave band mixes bin；Can so it make, same luminous member
Part group 920 reflected chromaticity coordinates range and dominant wavelength ranges shine member relative to two in the light emitting device group 920
The chromaticity coordinates range and dominant wavelength ranges that part 910 is respectively embodied, thereto between be worth convergence.Dominant wavelength wave can be reduced as a result,
Dynamic range is conducive to the white point fluctuation range for reducing light emitting device.
Wherein, first threshold range is related with the division mode of color lump and the mixed bin mode of coloration, for example, in each color
When the region that block covers in chromatic diagram is all the same, bin mode is mixed for the M1 coloration for mixing N1, first threshold range can be regarded as
The color block areas size that light emitting device embodies converges to the N1/M1 for the color block areas size that all light-emitting components embody.Second threshold
It is related with the division mode of dominant wavelength ranges and the mixed bin mode of wave band to be worth range, for example, in the main wave of each dominant wavelength ranges
When long span identical (such as 2nm), bin mode is mixed for the M2 wave band for mixing N2, second threshold range can be regarded as light emitting device
The dominant wavelength ranges size of embodiment converges to the N2/M2 for the dominant wavelength ranges size that all light-emitting components embody.In general, M1, N1,
M2 and N2 is the positive integer greater than 0.
It should be noted that " all light-emitting components " in the preceding paragraph can be regarded as M1 color lump range of covering and M2 master
The light-emitting component of wave-length coverage.Understand from actual production process, when production batch difference, the light-emitting component produced
There are consistency offsets for performance.All light-emitting components also be understood as different production batch, performance is not quite identical but wants
Production forms the multiclass light-emitting component of same wholesale electro-optical device.In the embodiment of the present invention, the performance of light-emitting component refers mainly to color seat
Mark and main table are long, and in other embodiments, the performance of light-emitting component may also include driving voltage, light emission luminance and this field
The performance of other light-emitting components known to technical staff, the embodiment of the present invention are not construed as limiting this.
Bin mode is mixed below with reference to coloration of Fig. 3-Fig. 6 to a plurality of light-emitting elements on underlay substrate and wave band mixes bin
Mode illustrates.
Illustratively, on the basis of the color lump structure 20 shown in Fig. 3, coloration mix bin mode can there are two types of, respectively with the
One coloration mixes bin mode 210 and the second coloration is mixed bin mode 220 and shown.
Illustratively, the first coloration mixes the design scheme that bin mode 210 represents 6 mixed 2, that is, passes through A+C, A+F, C+D and D+
F color lump colour mixture (match) two-by-two converges in the chromaticity coordinates range set that light emitting device can be made finally to embody and is located in the middle two
A color lump, i.e., in B and E.As a result, in 6 mixed 2 design scheme, color block areas range can converge to 2/6 when non-colour mixture.
Illustratively, the second coloration mixes the design scheme that bin mode 220 represents 6 mixed 1, that is, passes through A+F, B+E and C+D color
Block colour mixture two-by-two, converges to intermediate region in the chromaticity coordinates range set that light emitting device can be made finally to embody, to be located at color lump in Fig. 3
Dotted line frame in B and E indicates.As a result, in 6 mixed 1 design scheme, color block areas range can converge to 1/6 when non-colour mixture.
It should be noted that merely exemplary in Fig. 3 show 6 mixed 2 design scheme and 6 mixed 1 design scheme, but simultaneously
The division of color lump in the non-production method to light emitting device provided in an embodiment of the present invention and the restriction of matching way.At it
It, can also be according to the actual demand of the production method of light emitting device, in achievable color block areas range to centre in his embodiment
Be worth it is convergent under the premise of, the quantity and colour mixture mode, the embodiment of the present invention that color lump is arranged are not construed as limiting this.
In the actual production process, there are wave band distributions for the output of light-emitting component, lead to metamerism phenomenon.Such as Fig. 5 institute
The spectrogram 30 shown, is illustratively illustrated by example of blue chip.The dominant wavelength ranges of blue chip can be 452nm-
460nm, using 2nm as boundary divide the area wave band bin, then exist 4 areas wave band bin, frequency spectrum in Fig. 5 respectively with L301, L302,
L303 and L304 are shown, the dominant wavelength ranges of representative be respectively 452nm-454nm, 454nm-456nm, 456nm-458nm and
458nm-460nm.Wherein, for using blue chip as blue light-emitting diode (light emitting diode, LED),
The yield ratio of L302 and L303 is higher, can be greater than 80%；The yield ratio of L301 and L304 is smaller, is smaller than 20%.This hair
Bin is mixed by wave band in bright embodiment, can will be located at the area boundary wave band bin, is i.e. in the dominant wavelength ranges that L301 and L304 are represented
Blue-ray LED use, while reducing white point coordinates fluctuation range, be conducive to improve blue-ray LED utilization rate, thus
Advantageously reduce the cost of manufacture of light-emitting substrate.
On this basis, Fig. 6 shows two kinds of wave bands and mixes bin mode, and respectively in such a way that first band mixes bin 310 and the
Two wave bands mix bin mode 320 and show.
Illustratively, first band mix bin mode 310 can be regarded as A-F coloration mix bin while, the area wave band bin is pressed
Bin is mixed two-by-two according to L301+L303 or L302+L304, i.e., by the area wave band bin with voluminous area respectively, the area wave band bin in few producing region
It carries out wave band and mixes bin, the area center (wavelength is close to median) wave band bin can mix bin without wave band.It can make the final body of light emitting device
Existing dominant wavelength ranges concentrate the range for converging to the 4nm of intermediate region.As a result, in the program, dominant wavelength fluctuation range can be received
Hold back to do not carry out wave band mix bin when 1/2, that is, reduce dominant wavelength fluctuation range.
Illustratively, second band mix bin mode 320 can be regarded as A-F coloration mix bin while, the area wave band bin is pressed
Bin is mixed two-by-two according to L301+L304 or L302+L303, i.e. bin is mixed in the area high low band bin two-by-two, and the area center wave band bin is mixed two-by-two
bin.The dominant wavelength ranges that light emitting device can be made finally to embody concentrate the range for converging to the 2nm of intermediate region.The program as a result,
In, dominant wavelength fluctuation range can converge to 1/4 not carried out when wave band mixes bin, that is, reduce dominant wavelength fluctuation range.
It should be noted that in Fig. 5 and Fig. 6 it is merely exemplary with dominant wavelength ranges for 4, the span in the area wave band bin is
2nm is example, illustrates that wave band mixes the design scheme of bin.In other embodiments, the span in the area wave band bin can also be it
His numerical value, such as 3nm, 4nm etc.；The quantity of dominant wavelength ranges can be according to the span in the area wave band bin and the entirety of light-emitting component
Dominant wavelength ranges determine that the embodiment of the present invention is not construed as limiting this.
In addition, wave band, which mixes bin, also can be used other modes, as long as can realize dominant wavelength fluctuation range to median convergence i.e.
Can, degree of convergence can be arranged according to the actual demand of light emitting device and preparation method thereof, and the embodiment of the present invention is not construed as limiting this.
The production method of light-emitting component provided in an embodiment of the present invention, by the luminous member to the same light emitting device group
While part carries out color lump matching, its dominant wavelength ranges is matched, dominant wavelength fluctuation range can be reduced, to can avoid dominant wavelength wave
It is larger to move larger caused white point coordinates fluctuation；On this basis, it no longer needs to carry out white point correction by gamma.As a result,
It can will not lose display brightness while reducing white point coordinates fluctuation range and display contrast, to can ensure that display picture
Face brightness and contrast with higher, it is advantageously ensured that user has preferable user experience.
In the following, carrying out illustrative refinement explanation to the production method of light emitting device in conjunction with Fig. 7 and Fig. 8.
Optionally, Fig. 7 is the flow diagram of the production method of another light emitting device provided in an embodiment of the present invention.Ginseng
According to Fig. 7, which includes:
S410, underlay substrate is provided.
S420, a plurality of light-emitting elements are provided.
S430, the position according to the chromaticity coordinates of light-emitting component in chromatic diagram draw the light-emitting component of the light of same color
There are many light-emitting components of different color blocks.
Wherein, the chromaticity coordinates of the light-emitting component of the light of same color can be centrally located in a certain region in chromaticity coordinates figure,
The region divide, a variety of different color blocks can be obtained.Illustratively, it can refer to the block structure 20 in Fig. 3.
The step is subsequent light-emitting component is divided into light emitting device group to prepare.
It will be appreciated that the step can artificially divide color lump according to the production method of light emitting device, or use this field skill
Any criteria for classifying known to art personnel carries out color lump division, and the embodiment of the present invention is not construed as limiting this.
S440, according to the value of the corresponding dominant wavelength of every kind of color lump, the light-emitting component that will belong to the light of same color divides
For the light-emitting component of a variety of different dominant wavelength ranges.
Wherein, the dominant wavelength of the light-emitting component of the light of same color can be centrally located in a certain range in spectrogram, will
The range, which divide, can be obtained a variety of different dominant wavelength ranges.Illustratively, it can refer to the spectrogram 30 in Fig. 5.
The step is subsequent light-emitting component is divided into light emitting device group to prepare.
It will be appreciated that the step can artificially divide dominant wavelength ranges according to the production method of light emitting device, or using this
Any criteria for classifying known to the technical staff of field carries out the division of dominant wavelength ranges, and the embodiment of the present invention is not construed as limiting this.
By S430 in conjunction with S440 from the point of view of, and referring to Fig. 3-Fig. 6, as corresponding to the chromaticity coordinates within the scope of each color lump
Dominant wavelength entire scope is substantially the same, can be whole as one using the corresponding dominant wavelength entire scope of the color lump of all light-emitting components
Body, and according to the division of S440 progress dominant wavelength ranges, thereafter, comprehensively consider two aspects in color lump and dominant wavelength hair, it is right
Light-emitting component is grouped.
That is, carrying out wave band while coloration mixes bin and mixing bin, so as to reduce dominant wavelength fluctuation；Be conducive to ensuring
While higher display brightness and contrast, the fluctuation range of white point coordinates is reduced.
S450, a plurality of light-emitting elements are formed in underlay substrate side.
So far, light-emitting substrate is formed.
Optionally, Fig. 8 is the flow diagram of the production method of another light emitting device provided in an embodiment of the present invention.Ginseng
According to Fig. 8, which includes:
S510, underlay substrate is provided.
S520, a plurality of light-emitting elements are provided.
S530, the chromaticity coordinates for measuring light-emitting component.
Wherein, position of the light that chromaticity coordinates, that is, light-emitting component issues in chromatic diagram.
Illustratively, can be used skilled person will appreciate that any optical device directly measure the color of light-emitting component
Coordinate；Alternatively, being sat by the brightness or other parameters of measurement light-emitting component, and by calculating the indirect color for obtaining light-emitting component
Mark, the embodiment of the present invention are not construed as limiting this.
S540, it determines position of the chromaticity coordinates of light-emitting component in chromatic diagram, and identifies marker bit using different color lumps
In the light-emitting component of different color blocks.
Wherein, chromaticity coordinates and its position in chromatic diagram correspond, can by position of the chromaticity coordinates in chromatic diagram
Determine color lump belonging to light-emitting component.It is located at the light-emitting component of different color blocks in the step by different color lump mark labels,
Convenient for the subsequent light-emitting component for identifying color lump having the same as one kind, and identified according to color lump by inhomogeneous luminous member
Part coloration mixes bin.
Illustratively, referring to Fig. 2, color lump mark can be 201,202,203,204,205 and 206；Or color lump mark
It can be A, B, C, D, E and F；Perhaps color lump mark can also be the combination of number and letter or color lump mark can also be ability
The mark such as other symbols that field technique personnel are known, can be used for distinguishing different color blocks, the embodiment of the present invention are not construed as limiting this.
S550, the position according to the chromaticity coordinates of light-emitting component in chromatic diagram, determine the dominant wavelength of light-emitting component, and utilize
Different dominant wavelength mark labels is located at the light-emitting component of different dominant wavelength ranges.
Wherein, every chromaticity coordinates by hundred point light source of standard, the i.e. corresponding dominant wavelength of color coordinates on the straight line of O point
It is all the same, pass through position of the chromaticity coordinates in chromatic diagram, it may be determined that dominant wavelength ranges belonging to light-emitting component.Pass through in the step
Different dominant wavelength mark labels is located at the light-emitting component of different dominant wavelength ranges, convenient for subsequent by dominant wavelength mark having the same
Light-emitting component wave band in difference is mixed bin as one kind, and according to dominant wavelength mark by the light-emitting component of knowledge.
Illustratively, referring to Fig. 5 or Fig. 6, dominant wavelength mark can be L301, L302, L303 and L304；Or dominant wavelength
Mark can be da, db, dc and dd；Or dominant wavelength mark can also be skilled person will appreciate that, can be used for distinguish not
The mark such as other symbols with dominant wavelength ranges, the embodiment of the present invention are not construed as limiting this.
So far, according to the color lump of light-emitting component and dominant wavelength ranges, each light-emitting component can be identified by color lump and main wave
Long mark label, can use " // " interval, form comprehensive identification between color lump mark and the symbol of dominant wavelength mark.Illustratively,
Comprehensive identification can be 201//L301, A//da, 201//da or a//L301, according to the difference that color lump mark and dominant wavelength identify,
The comprehensive identification can also be other forms, and the embodiment of the present invention is not construed as limiting this.
Thereafter, S560 is executed, it may include execute S561 and S562.
S561, it will be identified with different color blocks and the light-emitting component of different dominant wavelength mark is as a light-emitting component
Group.
Optionally, with continued reference to Fig. 3, Fig. 5 and Fig. 6, color lump mark, which is included in chromatic diagram, is arranged by right to a left side, from top to bottom
A, B, C, D, E and F of column, dominant wavelength mark include by da, db, dc and dd of the ascending arrangement of dominant wavelength value, in Fig. 5 and
It is shown respectively with L301, L302, L303 and L304 in Fig. 6；Light-emitting component has any group of color lump mark and dominant wavelength mark
It closes, comprising: A-da, A-db, A-dc, A-dd, B-da, B-db, B-dc, B-dd, C-da, C-db, C-dc, C-dd, D-da, D-
Db, D-dc, D-dd, E-da, E-db, E-dc, E-dd, F-da, F-db, F-dc or F-dd.
On this basis, S561 can include:
Color lump is identified and is grouped two-by-two according to A-F, B-E, C-D, A-C, D-F or C-D；By dominant wavelength mark according to da-dc,
Db-dd, da-dd or db-dc are grouped two-by-two.
Illustratively, the member that shines is shown so that A-F coloration mixes bin in conjunction with the mixed bin of various forms of wave bands as an example in Fig. 6
The packet mode of part formation light emitting device group, wherein the light-emitting component of the both ends arrow meaning of the four-headed arrow in Fig. 6 can be made
For two light-emitting components in the same light emitting device group.Illustratively, light emitting device group may include A-da+F-dd, A-db+F-
Dc, A-dc+F-da, A-dd+F-da, A-dc+F-db and A-db+F-dc.
In this way, mixing bin and the mixed bin of wave band by coloration, realize that chromaticity coordinates range and dominant wavelength ranges are received to median
It holds back, to be conducive to reduce white point coordinates fluctuation range.
In other embodiments, S361 may also include, by the light-emitting component in the area intermediate wave band bin of high yield area without
Wave band mix bin and as one group, illustratively, it may include A-db+F-db, or including A-dc+F-dc, the embodiment of the present invention pair
This is not construed as limiting.
So far, the grouping matching of light-emitting component is completed.
S562, light emitting device group is formed in underlay substrate side.
The step may include being disposed adjacent two light-emitting components in the same light emitting device group.
By taking a light emitting device includes a kind of light emitting device group of scheme as an example, which be can be regarded as the light-emitting component
Two light-emitting components in group are successively spaced setting according to 1:1.In other embodiments, light emitting device may also include multiple hairs
Optical element group, which, which may also include, is successively spaced setting according to equal proportion for each light emitting device group.In this way, various differences can be made
The light-emitting component in the area coloration bin and the area wave band bin is uniformly distributed on underlay substrate, so that color blending effect is preferable, is conducive to subtract
The white point coordinates fluctuation range of small light emitting device.
Optionally, light-emitting component includes LED lamp bead or micro-LED chip.
Wherein, LED lamp bead is also referred to as LED chip, is generally used in the backlight module of liquid crystal display device, as lamp bar
On light-emitting component.LED lamp bead is after above-mentioned coloration mixes bin and wave band mixes bin, dominant wavelength fluctuation range and white point coordinates
Fluctuation range is smaller, to be conducive to reduce the white point coordinates fluctuation range of backlight module and liquid crystal display device.
Wherein, micro-LED chip is smaller relative to the size of LED lamp bead, can be used in LED display.It is exemplary
, single independent micro-LED chip can be formed, afterwards by batch transfer techniques or flood tide transfer techniques, by micro-LED
Chip is electrically connected to a side surface of underlay substrate, to form micro-LED display panel or device.Micro-LED chip warp
Above-mentioned coloration is crossed to mix after bin and wave band mix bin, reflected dominant wavelength fluctuation range and white point coordinates fluctuation range compared with
It is small, to be conducive to reduce the white point coordinates fluctuation range of micro-LED display device.
In other embodiments, light-emitting component can also be skilled person will appreciate that other kinds of light-emitting junction
Structure, the embodiment of the present invention are not construed as limiting this.
Based on the same inventive concept, the embodiment of the invention also provides a kind of light emitting device, which can be based on upper
The production method for stating the light emitting device of embodiment offer is made.Therefore, which also has above embodiment
Beneficial effect possessed by the production method of the light emitting device of offer, something in common, which can refer to be described above, to be understood, under
It is repeated no more in text.
Light emitting device provided in an embodiment of the present invention may include underlay substrate and be formed in the side of underlay substrate more
A light-emitting component；Wherein, a plurality of light-emitting elements have a variety of different color blocks and a variety of different dominant wavelength ranges, a variety of not homochromy
Block and a variety of different dominant wavelength ranges correspond to the light of same color；Using two neighboring light-emitting component as the member that shines
Part group；The coloration average value of the color lump of two light-emitting components of same light emitting device group is in first threshold range, and same hair
The dominant wavelength average value of the dominant wavelength ranges of two light-emitting components of optical element group is within the scope of second threshold.I.e. to same
While the light-emitting component of light emitting device group carries out color lump matching, match its dominant wavelength ranges, thus can realize chromaticity coordinates to
While lesser fluctuation range restrains, realize that dominant wavelength ranges are restrained to lesser fluctuation range；Dominant wavelength wave can be reduced
Dynamic range, thus can avoid fluctuating due to dominant wavelength it is larger caused by white point coordinates fluctuate larger problem；Meanwhile it no longer needing to
White point correction is carried out by gamma.It is bright can will not to lose display while reducing white point coordinates fluctuation range as a result,
Spend and display contrast, thus can ensure that display picture brightness and contrast with higher, it is advantageously ensured that user have compared with
Good user experience.
Optionally, in the light emitting device, at least one light emitting device group is in underlay substrate side periodic arrangement.
Wherein, two light-emitting components in same light emitting device group are successively spaced setting according to 1:1；On this basis, when
When same light emitting device includes at least two light emitting device group, each light emitting device group is also according to equal proportion periodic arrangement.In this way,
The light-emitting component of different color blocks and dominant wavelength ranges can be made to be uniformly distributed in underlay substrate side, to be conducive to reducing main wave
While long fluctuation and white point coordinates fluctuation, keep light-out effect uniform, can avoid causing since light-emitting component is unevenly distributed
The brightness disproportionations such as striped, concealed wire or bright line or coloration unevenness problem, to be conducive to be promoted the light-out effect of light emitting device.
Illustratively, Fig. 9-Figure 12 shows the structure of four kinds of light emitting devices 90.Wherein, light emitting device group 920 may include
First light emitting device group 9201 and the second light emitting device group 9202, the first light emitting device group 9201 and the second light emitting device group 9202
Two different light-emitting components 910 are respectively included, the different filling types of light-emitting component 910 can indicate the comprehensive of light-emitting component 910
It is different to close mark.Wherein, Fig. 9 and Figure 10 can represent lamp bar structure, can be used as the backlight lamp bar in liquid crystal display device；Figure 11 and
Figure 12 can represent the structure of lamp panel structure or LED display.
Illustratively, merely exemplary in Fig. 9 and Figure 11 to show (i.e. first light-emitting component of light emitting device group 920
9201) periodic arrangement is organized, the arrangement mode of the light-emitting component 910 in every a line can are as follows:
A-da,F-dc,A-da,F-dc,A-da,F-dc,A-da,F-dc；
Or it can are as follows:
A-da、F-dd、A-da、F-dd、A-da、F-dd、A-da、F-dd。
Illustratively, two (i.e. the first light emitting device groups of light emitting device group 920 are illustratively shown in Figure 10 and Figure 12
9201 and second light emitting device group 9202) periodic arrangement, the arrangement mode of the light-emitting component 910 in every a line can are as follows:
A-da,F-dc,A-db,F-dd,A-da,F-dc,A-db,F-dd；
Or it can are as follows:
A-da、F-dd、A-db、F-dc、A-da、F-dd、A-db、F-dc。
This is illustrative explanation, does not constitute the restriction to light emitting device 90 provided in an embodiment of the present invention.At it
In his embodiment, the quantity and arrangement mode of light emitting device group 920 and light-emitting component 910 in light emitting device 90 can roots
It is arranged according to the actual demand of light emitting device 90, the embodiment of the present invention is not construed as limiting this.
In addition, the combination of the type (i.e. comprehensive identification) of light-emitting component 910 may be based on the color of proposition of the embodiment of the present invention
It spends mixed bin combination wave band and mixes the available any combination of bin, the embodiment of the present invention is also not construed as limiting this.
Optionally, with continued reference to Fig. 5, the main wave of the light-emitting component of a variety of different dominant wavelength ranges of each light emitting device group
Long is in arithmetic progression.
So set, the wavelength bands such as the dominant wavelength entire scope of method light-emitting component can be divided, so that division side
Formula is simple, and grouping is easy.
Illustratively, the dominant wavelength entire scope of light-emitting component can be 452nm-460nm, divide wave band bin by boundary of 2nm
Area's (i.e. wavelength band) then forms 4 dominant wavelength differences dominant wavelength ranges all the same, i.e. dominant wavelength ranges are respectively 452nm-
454nm, 454nm-456nm, 456nm-458nm and 458nm-460nm.It is reference with the minimum value of each dominant wavelength ranges,
Difference is 2nm；Alternatively, being reference with the maximum value of each dominant wavelength ranges, difference is 2nm；Or with each dominant wavelength model
The average value enclosed is reference, and difference is 2nm.
In other embodiments, wave can also be divided for boundary using other dominant wavelength values, such as 3nm, 4nm or 5nm etc.
The area section bin, can be arranged, the embodiment of the present invention is not construed as limiting this according to the actual demand of light-emitting component and light emitting device.
Optionally, with continued reference to any figure of Fig. 9-Figure 12, the master of two light-emitting components 910 of each light emitting device group 920
The dominant wavelength difference of wave-length coverage can be equal.
Wherein, the boundary area wave band bin and the area center wave band bin are optionally subjected to wave band and mix bin, will led with realizing
Wave-length coverage is restrained to median.
Illustratively, first band mixes bin mode 310 and shows the mixed bin scheme of the wave band in Fig. 6.Wherein, two shine
The combination of the dominant wavelength ranges of light-emitting component can be L301+L303 in element group, or be L302+L304.Its dominant wavelength difference is equal
For 4nm.
It should be noted that in other embodiments, the dominant wavelength difference of dominant wavelength ranges can also be other dominant wavelengths
Value, can be arranged, the embodiment of the present invention is not construed as limiting this according to the actual demand of light emitting device 90.
Optionally, with continued reference to Figure 10 or Figure 12, which includes a variety of light emitting device groups 920, hair not of the same race
The dominant wavelength difference of the dominant wavelength ranges of two light-emitting components 910 of optical element group 920 is different；Light emitting device group 910 includes first
Light-emitting component 9101 (or 9103) and the second light-emitting component 9102 (or 9104)；The main wave of first light-emitting component 9101 (or 9103)
Dominant wavelength of the dominant wavelength of long range less than the dominant wavelength ranges of the second light-emitting component 9102 (or 9104)；Any two kinds members that shine
Part group 920 includes the first light emitting device group 9201 and the second light emitting device group 9202；Wherein, the of the first light emitting device group 9201
First light-emitting component 9103 of the dominant wavelength of the dominant wavelength ranges of one light-emitting component 9101 less than the second light emitting device group 9202
The dominant wavelength of the dominant wavelength of dominant wavelength ranges, the dominant wavelength ranges of the second light-emitting component 9102 of the first light emitting device group 9201 is big
In the dominant wavelength of the dominant wavelength ranges of the second light-emitting component 9104 of the second light emitting device group 9202.
Wherein, the boundary area wave band bin and the area center wave band bin are respectively optionally subjected to wave band and mix bin, boundary wave
The wave band in section bin area mix bin include the area wave band bin of long dominant wavelength ranges and short dominant wavelength ranges is carried out to mixed bin, in this way,
Dominant wavelength ranges are effectively restrained to median with realizing.
Illustratively, second band mixes bin mode 320 and shows the mixed bin scheme of the wave band in Fig. 6.Wherein, two shine
The combination of the dominant wavelength ranges of light-emitting component can be L301+L304 in element group, or be L302+L303, the master in the area each wave band bin
Wave-length coverage is respectively 452nm-454nm and 458nm-460nm, or is 454nm-456nm and 456nm-458nm, correspondingly, the
The dominant wavelength difference of one light emitting device group 9201 and the second light emitting device group 9202 is respectively 6nm and 2nm.
It should be noted that in other embodiments, the first light emitting device group 9201 and the second light emitting device group 9202
Dominant wavelength ranges dominant wavelength difference can also be other dominant wavelength values, can be arranged according to the actual demand of light emitting device 90,
Inventive embodiments are not construed as limiting this.
Optionally, with continued reference to Fig. 9 or Figure 10, light-emitting component 910 is LED lamp bead；Underlay substrate 900 can be lamp plate；LED
Lamp bead is set in a row on lamp plate.
The backlight lamp bar in liquid crystal display device can be formed as a result,.
Illustratively, row's LED lamp bead is shown in Fig. 9 and Figure 10, which can be used as side entrance back lamp bar
Light source.
In other embodiments, illuminator lamp item can be also formed, in other application scenarios, which can be with
Other forms exist, and the embodiment of the present invention is not construed as limiting this.
Optionally, with continued reference to Figure 11 or Figure 12, light-emitting component 910 is micro-LED chip；Micro-LED chip exists
The side surface array of underlay substrate 900 is arranged.
LED display can be formed as a result,.
Illustratively, 910 array of light-emitting component of 8 column, 5 row is shown in Figure 11 and Figure 12, also acts as downward back
The light source of optical mode group is conducive to improve the liquid crystal formed by the light emitting device 90 to realize local backlight (local dimming)
The luminance dynamic range of display device.
In other embodiments, the quantity and array arrangement mode of the light-emitting component 910 in light emitting device 90, may be used also
It is arranged according to the actual demand of light emitting device 90, the embodiment of the present invention is not construed as limiting this.
On the basis of the above embodiment, the embodiment of the invention also provides a kind of backlight module, the backlight module packets
Any light emitting device of above embodiment offer is provided.Therefore, backlight module provided in an embodiment of the present invention also has above-mentioned
Beneficial effect possessed by light emitting device and preparation method thereof, something in common can refer to understanding above, hereinafter repeat no more.
Illustratively, Figure 13 is a kind of structural schematic diagram of backlight module provided in an embodiment of the present invention.Referring to Fig.1 3, it should
Backlight module 80 includes light emitting device 90, further includes optical film layer, to realize uniformly highlighted backlight.
Illustratively, optical film layer may include the first reflecting layer 810, light guide plate 820, crossed nicols 830, protective film 840
And second catoptric arrangement 850, may also include skilled person will appreciate that other optical textures or protection structure, each structure
Relative positional relationship and function can be known to the skilled person any, the embodiment of the present invention does not repeat this
It is not construed as limiting.
It should be noted that the backlight module 80 for showing side entering type merely exemplary in Figure 13.In other embodiments
In, backlight module 80 can also be straight-down negative, and the embodiment of the present invention is not construed as limiting this.
On the basis of the above embodiment, the embodiment of the invention also provides a kind of display device, the display device packets
The backlight module of above embodiment offer is provided.Therefore, display device provided in an embodiment of the present invention also has above-mentioned luminous dress
Set and preparation method thereof and backlight module possessed by beneficial effect, something in common can refer to understanding above, hereinafter no longer
It repeats.
Illustratively, Figure 14 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention, shows liquid crystal
The cross-section structure of display device.Referring to Fig.1 4, it further includes liquid crystal display panel 700 which, which includes backlight module 80,
Liquid crystal display panel 700 is set to the light emission side of backlight module 80.
Illustratively, liquid crystal display panel 700 may include the bottom polarisation set gradually along the direction far from backlight module 80
Piece 730, array substrate 710, liquid crystal layer 750, color membrane substrates 720 and face polaroid 740；It may also include those skilled in the art
Other known optical textures or protection structure, the relative positional relationship and function of each structure can be public for those skilled in the art
That knows is any, and the embodiment of the present invention does not repeat this and is also not construed as limiting.
Wherein, the white point coordinates of liquid crystal display device are by the frequency spectrum of backlight module and the frequency spectrum of liquid crystal display panel in each frequency
The product integral of rate point obtains, can as a result, when the white point coordinates fluctuation range and smaller dominant wavelength fluctuation range of backlight module
The influence for reducing white point coordinates fluctuation of the metamerism phenomenon to liquid crystal display device, is conducive to reduce the white of liquid crystal display device
Point coordinate fluctuation range.Meanwhile the dominant wavelength fluctuation range of liquid crystal display device can be reduced.
On the basis of the above embodiment, the embodiment of the invention also provides a kind of display device, the display device packets
The light emitting device of above embodiment offer is provided.Therefore, display device provided in an embodiment of the present invention also has above-mentioned luminous dress
Beneficial effect possessed by setting and preparation method thereof, something in common can refer to understanding above, hereinafter repeat no more.
Illustratively, Figure 15 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention, and it is aobvious to show LED
The cross-section structure of showing device.Referring to Fig.1 5, which includes light emitting device 90, may also include packaging protection structure 770.
Wherein, packaging protection structure 770 is for protecting light-emitting component 910, it is advantageously ensured that the performance of light-emitting component 910 is steady
It is qualitative, to be conducive to extend the service life of light emitting device 70.
It should be noted that packaging protection structure 770 can be thin-film packing structure, can also be skilled person will appreciate that
Other packaging protection structures, the embodiment of the present invention is not construed as limiting this.
Bin combination wave band is mixed with the coloration above write below and mixes one or more of bin for example, in conjunction with figure
Chromaticity coordinates range schematic diagram 60 shown in 16- Figure 19, to the white point coordinates wave of liquid crystal display device provided in an embodiment of the present invention
Dynamic range illustrates.
Illustratively, it is divided by Fig. 3, Fig. 5 and color lump shown in Fig. 6 and coloration is mixed in a manner of bin and dominant wavelength ranges
For division mode and wave band mix bin mode, specifically, Figure 16 shows so that A, B, C, D, E and F respectively represent six color lumps as an example
Ideal mixed bin is gone out, metamerism mixes bin, first band mixes bin mode 310 and second band is mixed under bin mode 320
White point fluctuation and dominant wavelength fluctuation comparison, concrete outcome are as shown in table 1.
1 different schemes wave band of table mixes bin Comparative result table
Wherein, metamerism, which mixes bin and represents, only considers that coloration mixes bin, without combining wave band to mix bin；Dominant wavelength fluctuates generation
The dominant wavelength of table backlight module fluctuates, and mould group white point difference represents the difference of the white point coordinates of liquid crystal display device, and dominant wavelength is
The dominant wavelength of the various coloured light for the liquid crystal display device being calculated, R λ, G λ and B λ respectively represent the master of feux rouges, green light and blue light
Wavelength.The white point coordinates fluctuation of liquid crystal display device can be characterized by mould group white point difference, and the value of Wx and Wy are smaller, show punctuate
It fluctuates smaller.
As shown in Table 1, wave band is combined to mix bin while coloration mixes bin, on the one hand, liquid crystal can be effectively reduced
Show the white point fluctuation of panel, the white point fluctuation range that second band mixes bin mode 320 is the ideal white point fluctuation for mixing bin mode
Range is identical；And mix bin relative to metamerism, white point fluctuation reduces (0.003,0.007), amplitude of variation 30% with
On.On the other hand, the dominant wavelength of feux rouges, green light and blue light, which fluctuates, reduces；And second band mixes feux rouges, the green light of bin mode 320
Dominant wavelength fluctuation with blue light can be individually controlled within the scope of ± 1.0nm, ± 0.2nm and ± 0.7nm, relative to homochromy
Different spectrum mixes bin, and dominant wavelength fluctuation range reduces 50% or more.
Illustratively, Figure 17 shows a kind of distributions of the white point of backlight module.Wherein assorted block identification be respectively SK1,
SK2, SK3, SK4, SK5, SK6, SK7, SK8, SK9, SK10, SK11 and SK12.For color lump, the coloration using 10 mixed 4 is mixed
SK1, SK2, SK3, SK4, SK5, SK7, SK8, SK9, SK10 and SK11 are carried out coloration and mix bin, sit color by bin scheme
Mark the region convergence to intermediate four color lump sizes.Wherein, L632 represents the distributed area for the chromaticity coordinates that rationality coloration is mixed after bin
Domain, L631 represent the distributed areas of the chromaticity coordinates obtained by practical backlight white point coordinate (showing in figure with circle) fitting.By
This, mixes bin by coloration and wave band mixes bin, it can be achieved that chromaticity coordinates is restrained to median.
Illustratively, Figure 18 shows simulation calculated result on the basis of Figure 17.Its design parameter that can reflect can
Referring to table 2.
2 different schemes wave band of table mixes the analog result contrast table of bin
Wherein, 1,2,3 and 4 respectively represent white point fluctuation range angle point position.Illustratively, shown in Figure 18
For orientation, 1,2,3 and 4 respectively represent the corner location in the lower left corner, the upper left corner, the upper right corner and the lower right corner, white point difference, that is, table 1
In mould group white point difference, other can refer to something in common in table 1 illustrates to understand to table 1, does not repeat herein.
As shown in Table 2, metamerism mixes bin relative to the mixed bin of ideal, white point fluctuation range expand (0.005,
0.009), the dominant wavelength of corresponding feux rouges and green light fluctuation expands 1.1nm and 1.0nm respectively.It is mixed by using first band
Bin mode 310, the i.e. area boundary wave band bin and the centre area wave band bin carry out mixed bin, can mix bin relative to metamerism, will be white
(0.003,0.006) is reduced in point fluctuation, and the dominant wavelength fluctuation of feux rouges and green light reduces 0.7nm and 0.6nm respectively.
Secondly, Wy fluctuation is larger by the comparison result of Tables 1 and 2 it is found that the Wx fluctuation in table 1 is smaller；And Wx in table 2
Fluctuate larger, Wy fluctuation is smaller, i.e. the fluctuation size trend of Wx and Wy is on the contrary, this is related with the division mode of color lump, not structure
The restriction of pairs of display device provided in an embodiment of the present invention.
Illustratively, Figure 19, which is shown, is applied to practical LCD display for the mixed bin mode 310 of first band in table 2
When in panel products, the white point coordinates (being indicated in figure with the diamond shape of filling) of the liquid crystal display device measured, and according to measurement
As a result actual measurement white point fluctuation profile L641 is depicted.Illustratively, test method can be, color lump 10 shown in Figure 17 it is mixed 4 when,
Confirmation coloration mix bin combination wave band mix bin after colour fluctuation the limit and choose color lump angle point carry out mix bin all schemes it is equal
It is tested.The comparison of analog result and real data can be found in table 3.
The contrast table of table 3 analog result and measured data
Wherein, △ Wx and △ Wy represent white point difference.
As shown in Table 3, white point fluctuation range, the white point fluctuation range of display device for the backlight module that actual measurement obtains
And the dominant wavelength fluctuation range of display device is consistent with analog result in error range.Simulation can be passed through as a result,
Product design is instructed in experimental design.
It should be noted that above-mentioned illustrate the embodiment of the present invention only in conjunction with Figure 16-Figure 18, do not constitute
Restriction to display device provided in an embodiment of the present invention.
The production method of light emitting device provided in an embodiment of the present invention, light emitting device, backlight module, liquid crystal display device with
And LED display, bin combination wave band is mixed by coloration and mixes bin, dominant wavelength fluctuation range and white point coordinates fluctuation model can be reduced
It encloses；Meanwhile it no longer needing to carry out white point correction by gamma.As a result, can while reducing white point coordinates fluctuation range,
Display brightness will not be lost and displayed contrast, to can ensure that display picture brightness and contrast with higher, be conducive to
Ensure that user has preferable user experience.When being applied to car-mounted display, be conducive to meet client to display device for mounting on vehicle
White point fluctuation and dominant wavelength fluctuation requirement.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (15)
1. a kind of production method of light emitting device characterized by comprising
Underlay substrate is provided；
A plurality of light-emitting elements are formed in the underlay substrate side；
Wherein, the multiple light-emitting component has a variety of different color blocks and a variety of different dominant wavelength ranges, a variety of differences
Color lump and a variety of different dominant wavelength ranges correspond to the light of same color；Using the two neighboring light-emitting component as
One light emitting device group；The coloration average value of the color lump of two light-emitting components of same light emitting device group is in first threshold range
It is interior, and the dominant wavelength average value of the dominant wavelength ranges of two light-emitting components of same light emitting device group is within the scope of second threshold.
2. the production method of light emitting device according to claim 1, which is characterized in that formed in the underlay substrate side
Before a plurality of light-emitting elements, further includes:
Multiple light-emitting components are provided；
According to position of the chromaticity coordinates of the light-emitting component in chromatic diagram, the light-emitting component of the light of same color is divided
For the light-emitting component of a variety of different color blocks；
According to the value of the corresponding dominant wavelength of color lump described in every kind, the light-emitting component for the light for belonging to same color is divided into
The light-emitting component of a variety of difference dominant wavelength ranges.
3. the production method of light emitting device according to claim 2, which is characterized in that provide multiple light-emitting components it
Afterwards, further includes:
Measure the chromaticity coordinates of the light-emitting component；
According to position of the chromaticity coordinates of the light-emitting component in chromatic diagram, the light-emitting component of the light of same color is divided
Light-emitting component for a variety of different color blocks includes:
It determines position of the chromaticity coordinates of the light-emitting component in chromatic diagram, and is located at difference using different color lump mark labels
The light-emitting component of color lump；
According to the value of the corresponding dominant wavelength of color lump described in every kind, photochromic piece of the light-emitting component for belonging to same color is drawn
Include: there are many light-emitting components of different dominant wavelength ranges
According to position of the chromaticity coordinates of the light-emitting component in chromatic diagram, the dominant wavelength of the light-emitting component is determined, and utilize
Different dominant wavelength mark labels is located at the light-emitting component of different dominant wavelength ranges；
Forming a plurality of light-emitting elements in the underlay substrate side includes:
Using the light-emitting component identified with different color blocks mark and different dominant wavelength as a light emitting device group；
The light emitting device group is formed in the underlay substrate side.
4. the production method of light emitting device according to claim 3, which is characterized in that the color lump mark is included in coloration
By right to A, B, C, D, E and F left, arrange from top to bottom in figure, the dominant wavelength identify include by dominant wavelength value by it is small to
Da, db, dc and dd of longer spread；
The light-emitting component has any combination of color lump mark and dominant wavelength mark, comprising: A-da, A-db, A-dc, A-
dd、B-da、B-db、B-dc、B-dd、C-da、C-db、C-dc、C-dd、D-da、D-db、D-dc、D-dd、E-da、E-db、E-
Dc, E-dd, F-da, F-db, F-dc or F-dd；
It will be identified with different color blocks and the light-emitting component that different dominant wavelength identifies is as a light emitting device group,
Include:
The color lump is identified and is grouped two-by-two according to A-F, B-E, C-D, A-C, D-F or C-D；
The dominant wavelength is identified and is grouped two-by-two according to da-dc, db-dd, da-dd or db-dc.
5. the production method of light emitting device according to claim 1, which is characterized in that the light-emitting component includes LED light
Pearl or micro-LED chip.
6. a kind of light emitting device characterized by comprising
Underlay substrate；
In a plurality of light-emitting elements that the side of the underlay substrate is formed；
Wherein, the multiple light-emitting component has a variety of different color blocks and a variety of different dominant wavelength ranges, a variety of differences
Color lump and a variety of different dominant wavelength ranges correspond to the light of same color；Using the two neighboring light-emitting component as
One light emitting device group；The coloration average value of the color lump of two light-emitting components of same light emitting device group is in first threshold range
It is interior, and the dominant wavelength average value of the dominant wavelength ranges of two light-emitting components of same light emitting device group is within the scope of second threshold.
7. light emitting device according to claim 6, which is characterized in that at least one described light emitting device group is in the substrate
Substrate side periodic arrangement.
8. light emitting device according to claim 6, which is characterized in that a variety of different dominant wavelength models of each light emitting device group
The dominant wavelength of the light-emitting component enclosed is in arithmetic progression.
9. light emitting device according to claim 6, which is characterized in that the master of two light-emitting components of each light emitting device group
The dominant wavelength difference of wave-length coverage is equal.
10. light emitting device according to claim 6, which is characterized in that including a variety of light emitting device groups, luminous member not of the same race
The dominant wavelength difference of the dominant wavelength ranges of two light-emitting components of part group is different；
The light emitting device group includes the first light-emitting component and the second light-emitting component；The dominant wavelength ranges of first light-emitting component
Dominant wavelength be less than second light-emitting component dominant wavelength ranges dominant wavelength；
Any two kinds of light emitting device groups include the first light emitting device group and the second light emitting device group；Wherein, the described first luminous member
The dominant wavelength of the dominant wavelength ranges of first light-emitting component of part group is less than first hair of second light emitting device group
The dominant wavelength of the dominant wavelength ranges of optical element, the dominant wavelength ranges of second light-emitting component of first light emitting device group
Dominant wavelength is greater than the dominant wavelength of the dominant wavelength ranges of second light-emitting component of second light emitting device group.
11. light emitting device according to claim 6, which is characterized in that the light-emitting component is LED lamp bead；
The LED lamp bead is set in a row in one side surface of underlay substrate.
12. light emitting device according to claim 6, which is characterized in that the light-emitting component is micro-LED chip；
The micro-LED chip is arranged in the side surface array of the underlay substrate.
13. a kind of backlight module, which is characterized in that including light emitting device described in claim 6-12.
14. a kind of display device, which is characterized in that including the backlight module described in claim 13；
It further include liquid crystal display panel；
The liquid crystal display panel is set to the light emission side of the backlight module.
15. a kind of display device, which is characterized in that including light emitting device described in claim 6-12.
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