CN106292069A - Light source assembly and liquid crystal indicator - Google Patents
Light source assembly and liquid crystal indicator Download PDFInfo
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- CN106292069A CN106292069A CN201610816747.3A CN201610816747A CN106292069A CN 106292069 A CN106292069 A CN 106292069A CN 201610816747 A CN201610816747 A CN 201610816747A CN 106292069 A CN106292069 A CN 106292069A
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- white light
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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
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to light source assembly and liquid crystal indicator.The application provides in embodiment, owing to above-mentioned graphene LED chip has multiple wavelengthtunable point, and the primary lights that above-mentioned LED white light source has multiple fixed wave length mix, and a LED primary light source first wave length point, therefore the multiple adjustable wavelength points of above-mentioned graphene LED chip can expand display color territory with first wave length point, the structure of this display colour gamut can include can covering gamut range with LED white light source, and multiple wavelengthtunable points of graphene LED chip and the first wave length point-shaped radial complementary color district of a LED primary light source, this complementary color area and colour prime white LED light source cover colour gamut and collectively form the colour gamut indication range of the embodiment of the present invention.
Description
Technical field
The present embodiments relate to Display Technique, particularly relate to a kind of light source assembly and liquid crystal indicator.
Background technology
Liquid crystal indicator is made up of liquid crystal panel, institutional framework, optics and some circuit boards etc..Due to liquid crystal
Itself is the most luminous, needs to configure some backlights and just can demonstrate picture.Wherein, backlight module is for carrying for liquid crystal indicator
Supply brightness and the backlight being evenly distributed, make liquid crystal indicator can show picture normally.
Wherein, backlight module provides white source to control to be shown as colour picture by three-color pixel in liquid crystal panel.In vain
Color backlight is mixed by red-green-blue, according to colour mixture principle, the triangle that the chromaticity coordinates point of three primary colours is surrounded
Area, is the colour gamut of attainable color gamut, referred to as backlight, also constitutes the gamut range of this liquid crystal indicator.
Correlation technique there is employing LED blue-light-emitting chip excite red green mixed fluorescent powder or yellow fluorescent powder, and produce
RGB or blue Huang are mixed to get white.And also have use blue-light LED chip and blue excitation red fluorescence obtain HONGGUANG, with
And blue LED die excites green emitting phosphor to obtain green glow, then, blue light, HONGGUANG and green glow are being mixed into white light.So, exist
In correlation technique, the color coordinates of three primary colours is determined by centre of luminescence wavelength, and the centre wavelength of three primary colours is then by LED emission wavelength
And fluorescent material decision itself, once prepared by back light device, and its emission wavelength is fixing.
Accordingly, because the emission wavelength of LED component is fixed, the attainable colour gamut of backlight such as Fig. 1 institute of three primary colours colour mixture
Showing, this gamut range is that the area of the triangle that red-green-blue is surrounded on the spectral line of horseshoe diagram determines.But,
The color of human viewable is whole horseshoe diagram, and the color gamut outside triangle then cannot show on liquid crystal indicator.
Therefore, how improving the backlight colour gamut coverage of liquid crystal display is current technical staff technology urgently to be resolved hurrily
Problem.
Summary of the invention
The embodiment of the present invention provides a kind of light source assembly and display device, in order to solve colour gamut indication range in prior art
Narrower, it is impossible to meet the technical problem that the display of user requires.
First aspect, the embodiment of the present invention provides a kind of light source assembly, and light source assembly includes that at least two emission wavelength can
The graphene LED chip adjusted, for launching the LED white light source of white light, for launching a LED primary light source of primary lights；
And in described graphene LED chip multiple wavelengthtunable points respectively with the common structure of multiple wavelength points of described LED white light source
Become colour gamut indication range.
Optionally, it is used for encapsulating described graphene LED chip, described LED white light source matrix, including being provided with light cup
LED package support, wherein, described graphene LED chip, described LED white light source are encapsulated in described light cup.
Optionally, described graphene LED chip uses the graphene oxide composite material of semi-reduction state, by building chip
Face inner grid structure, applies the voltage fermi level with the graphene oxide composite material of the described semi-reduction state of adjustment to grid, real
Now regulate and control the emission wavelength of described graphene LED chip.
Optionally, described LED white light source includes the blue chip for launching blue light and is encapsulated in described blue chip
Yellow fluorescent powder in the silica gel on surface.
Optionally, the number of described second light cup is one；Graphene LED chip described in described at least two is arranged jointly
In one the second light cup, and described LED white light source is encapsulated in the first light cup of LED package support.
Optionally, graphene LED chip described in described at least two is separately positioned in different one the second light cup,
And described LED white light source is encapsulated in the first light cup of LED package support.
Second aspect, the embodiment of the present invention also provides for a kind of liquid crystal indicator, including: backlight module and display floater,
Described backlight module includes multiple any of the above-described light source assembly, and wherein, the plurality of light source assembly is arranged in backlight by combination
In module, jointly provide display backlight light source for described display floater.
The third aspect, the embodiment of the present invention reoffers a kind of display packing, is applied in above-mentioned liquid crystal indicator, described
Method comprises determining that the gamut regions that at least two wavelengthtunable point of described graphene LED chip is constituted；If described colour gamut district
Territory falls within the gamut regions of described LED white light source, then the described wavelengthtunable point selecting color to use brightness high is carried out
Mixing.
Compared with prior art, the Advantageous Effects of the technical scheme that the embodiment of the present application is proposed includes:
In the embodiment of the present application, due to above-mentioned at least two graphene LED chip, there is multiple wavelengthtunable point and above-mentioned
LED white light source has the primary lights of multiple fixed wave length and mixes, therefore above-mentioned at least two graphene LED chip is multiple
Adjustable wavelength points can expand display colour gamut, and the structure of this display colour gamut can include can covering colour gamut model with LED white light source
Enclose, and multiple wavelengthtunable point-shaped radial complementary color districts of at least two graphene LED chip, this complementary color area with former in vain
Color LED light source covers colour gamut and collectively forms the colour gamut indication range of the embodiment of the present invention.Ripple due to above-mentioned graphene LED chip
Long point is adjustable, therefore, it can the position in horseshoe diagram of the wavelength points by controlling graphene LED chip, guarantees the present invention
The colour gamut indication range of embodiment is more than only having the area shared by triangle that white light source determines in Fig. 1.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is this
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Colour gamut limit schematic diagram in the prior art that Fig. 1 provides for the present invention；
The structural representation of the light source assembly embodiment one that Fig. 2 provides for the present invention；
The color displays principle schematic that Fig. 3 provides for the present invention；
The structural representation of the light source assembly embodiment two that Fig. 4 provides for the embodiment of the present invention；
The structural representation of the light source assembly embodiment three that Fig. 5 provides for the embodiment of the present invention；
The structural representation of the display device that Fig. 6 provides for the embodiment of the present invention；
The schematic flow sheet of the display packing of the display device using light source assembly that Fig. 7 provides for the embodiment of the present invention；
The human eye vision function schematic diagram that Fig. 8 provides for the embodiment of the present invention.
Detailed description of the invention
For making the purpose of the embodiment of the present invention, technical scheme and advantage clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
Should be appreciated that the term " first " in description and claims of this specification and above-mentioned accompanying drawing, " second ",
" the 3rd " etc. are for distinguishing similar object, without being used for describing specific order or precedence.Should be appreciated that so
Use data can exchange in the appropriate case, such as can be given in illustrating according to embodiments of the present invention or describing those with
Outer order is implemented.Additionally, term " includes " and " having " and their any deformation, it is intended that cover but non-exclusive
Comprise, such as, contain the product of a series of assembly or equipment is not necessarily limited to those assemblies of clearly listing, but can include
That the most clearly list or for intrinsic other assembly of these products or equipment.
The light source assembly that the present embodiments relate to can use as arbitrary source, it is also possible to is suitable for display and provides the back of the body
In arbitrary display terminal of light, such as, go for LCD TV, mobile phone, panel computer, PDA(Personal
Digital Assistant, personal digital assistant), POS(Point of Sales, point-of-sale terminal), vehicle-mounted computer etc. have aobvious
The equipment of display screen, the form of the embodiment of the present invention terminal unit to being applicable to does not limits.
As stated in the Background Art in correlation technique, three primary light source colour gamut coverage is by the centre wavelength institute of three bases luminescences
Surrounding what triangle area determined at coordinate, therefore, light source is once prepare, and the covering gamut range of this light source determines,
And in the related, in order to improve the gamut range of light source, basic resolving ideas is to change fluorescent material, such as employing amount
Son point material etc. so that the color of primary lights is purer, it may be assumed that make its in FIG vertex of a triangle outwards include, such as in Fig. 1 in
Between triangle 1 use fluorescent material stimulated luminescence to obtain gamut range, triangle 3 uses quanta point material stimulated luminescence to obtain color
Territory scope.Therefore, once light source selects to determine that material and preparation complete, and the colour gamut coverage of this light source determines, in relevant skill
Art cannot improve gamut range further.
It is different from correlation technique, in the application solves the thinking of gamut problem, forms light source at multiple primary lights
Including that the centre wavelength of at least two primary colours luminous sources is variable, and form the complementary color area of a white light source, it should
At least the centre wavelength of two primary colours luminous sources changes along with needs, so, covers the basis of colour gamut at original white light source
On, then complementary color white light source formed by the primary colours luminous source that at least two centre wavelength is variable, complementary color area may be formed at
Outside colour prime white light source gamut regions, to expand the colour gamut area coverage of this light source.
On the basis of the invention described above basic ideas, the provided light source assembly of the embodiment of the present invention and liquid crystal indicator,
Aim to solve the problem that and the as above correlation technique of prior art exists technical problem, thus reach to improve further the colour gamut of display device
The purpose of indication range.
With specifically embodiment, technical scheme is described in detail below.These concrete enforcements below
Example can be combined with each other, and may repeat no more in some embodiment for same or analogous concept or process.
Thering is provided a kind of light source assembly in the embodiment of the present application, wherein, this light source assembly includes that at least two emission wavelength can
The graphene LED chip adjusted, for launching the LED white light source of white light, for launching a LED primary light source of primary lights；
And multiple wavelengthtunable points multiple wavelength points with LED white light source respectively collectively form colour gamut and show in graphene LED chip
Demonstration is enclosed.
Wherein, the adjustable graphene LED chip of at least two emission wavelength, provide some embodiments with two in this application
Illustrate as a example by individual, but can be two, it is also possible to more than two.
The structural representation of the light source assembly embodiment one that Fig. 2 provides for the embodiment of the present invention.As in figure 2 it is shown, this light source
Assembly 100 include adjustable first graphene LED chip 10 of emission wavelength, for launch white light LED white light source 11, for
Adjustable second graphene LED chip 12 of emission wavelength.
Wherein, in the first graphene LED chip 10 and the second graphene LED chip 12 multiple wavelengthtunable points respectively with
Multiple wavelength points points of LED white light source 11 collectively form colour gamut indication range.
It should be noted that LED white light source 11 it may be that the blue light of blue LED die excite yellow fluorescent powder or
The white light source that red green mixed fluorescent powder obtains, it is also possible to purple or ultraviolet light, as excitation source, obtain with excitated fluorescent powder
White light source, can be with white light source arbitrary in Display Technique, as quanta point material is excited rear mixture of white.
Meanwhile, adjustable first graphene LED chip the 10, second graphene LED chip of emission wavelength in this light source assembly
12 and LED white light source 11 arrangement mode, it is not limited to the arrangement of Fig. 2 cathetus, it is possible to non-rectilinear arrangement between three,
As: triangle arrangement mode, those skilled in the art can select preferable arrangement form with the combining form of three's different base colors.
Concrete, the encapsulating structure of this light source assembly 100, can select according in existing correlation technique.Such as pcb board
On as the encapsulation matrix of this light source 100.
Preferably, for encapsulation the first graphene LED chip 10, LED white light source 11 and the second graphene LED chip
The matrix of 12, including being provided with the LED package support 13 of light cup 14, wherein, the first graphene LED chip 10, LED white light source
11 and second graphene LED chip 12 be encapsulated in described light cup 14.
The light source assembly 100 that the embodiment of the present invention provides, its by above-mentioned first graphene LED chip 10, be used for launching white
The LED white light source 11 of coloured light line is encapsulated in the light cup 14 of package support together with the second graphene LED chip 12, and this is second years old
Graphene LED chip 12 and the one the first graphene LED chip 1 are respectively provided with multiple wavelengthtunable point, this LED white light source 11
Also having the white light of multiple fixing wavelength points synthesis, this LED package support 13 uses high reflection, anti-light illumination aging and plastic
Property strong material composition, such as EMC material, its effect is can be each LED chip above-mentioned and other component package to be protected
Coming, the light cup 14 on this package support can improve forward and go out the efficiency of light.
Optionally, the light cup 14 on this LED package support 13 can be one, it is also possible to is multiple, the embodiment of the present invention
Not limiting the number of light cup 14, the light cup 14 shown in above-mentioned Fig. 2 is that the present invention is not limited thereto as a example by two.
Optionally, the driving of above-mentioned first graphene LED chip 10, LED white light source 11 and the second graphene LED chip 12
Move and independently control.
Needing further exist for explanation, the characteristic of the graphene LED chip that the embodiment of the present invention is used does an introduction:
According to relevant prior art, graphene LED chip mainly uses the graphene oxide of semi-reduction state
(Semi-reduced Graphene Oxide is called for short srGO) material, this srGO material can be by laser writing technology from oxygen
The interface of functionalized graphene and reduced graphene obtains, the high conductivity of this materials combine Graphene and the broadband of graphene oxide
Gap feature, by building the face inner grid structure of chip, can adjust srGO material to the grid applying voltage of graphene LED chip
The fermi level of material, thus the emission wavelength of real-time monitoring graphene LED chip.It is to say, the embodiment of the present invention is used
Graphene LED chip, it is applied to the voltage of grid by regulation can be with middle cardiac wave luminous for real-time monitoring Graphene LED
Long, by applying different grid voltages, the emission wavelength of this graphene LED chip can connect in the range of 450nm ~ 750nm
Continuous adjustable, the whole visible-range of basic covering, thus this graphene LED chip has multiple wavelength points.
The embodiment of the present invention provide light source assembly 100, its by above-mentioned graphene LED chip, be used for launching the LED of white light
White light source 11 be encapsulated in the light cup of LED package support 13, specifically together with launching the graphene LED chip of primary lights
For: LED white light source 11 is encapsulated in the first light cup 14 of LED package support 13, by the second graphene LED chip 12 and
One graphene LED chip 10 is encapsulated at least one second light cup 15, and optionally, the embodiment of the present invention is to the second Graphene
LED chip 12 and the first graphene LED chip 10 are specifically encapsulated in a second light cup 15, are also packaged in multiple second
Light cup 15 does not limit, as long as the LED white light source 11 guaranteed in the embodiment of the present invention can individually be encapsulated in a light
In Bei, do not disturbed by other color of light, the second graphene LED chip 12 and the first graphene LED chip in above-mentioned Fig. 2
The encapsulating structure of 10 is only a kind of example, and the embodiment of the present invention is not limited thereto.
The concrete packing forms of this LED white light source 11 is not limited by the embodiment of the present invention, as long as it can be launched
White light；Above-mentioned LED package support 13 uses the material composition that high reflection, anti-light illumination aging and plasticity are strong, such as EMC material
Matter, its effect is can be each LED chip above-mentioned and other component package to be protected, on this LED package support 13
Light cup can improve forward and go out the efficiency of light.Optionally, above-mentioned first graphene LED chip the 10, second graphene LED chip 12
Driving with LED white light source 11 independently controls.
In the embodiment of the present application, due to above-mentioned at least two graphene LED chip have multiple wavelengthtunable point and on
State LED white light source there are the primary lights of multiple fixed wave length to mix, therefore above-mentioned at least two graphene LED chip is many
Individual adjustable wavelength points can expand display colour gamut, and the structure of this display colour gamut can include can covering colour gamut with LED white light source
Scope, and multiple wavelengthtunable point-shaped radial complementary color districts of at least two graphene LED chip, this complementary color area is with former
White LED light source covers colour gamut and collectively forms the colour gamut indication range of the embodiment of the present invention.Due to above-mentioned graphene LED chip
Wavelength points is adjustable, therefore, it can the position in horseshoe diagram of the wavelength points by controlling graphene LED chip, guarantees this
The colour gamut indication range of bright embodiment is more than only having the area shared by triangle that white light source determines in Fig. 1, concrete reason is such as
Under:
In prior art, the gamut range that display device can show is that the maximum triangle in Fig. 1 is shared in horseshoe diagram
Area, wherein, the maximum triangle in Fig. 1 is to be formed by redgreenblue colour mixture, and three summits of this maximum triangle are divided
Wei red spot, blue light point and green glow point.And the light source assembly 100 in the embodiment that the application provides, at least include a LED
White light source, wherein, LED white light source gamut range overlaps with three summits of the maximum triangle in Fig. 1 substantially, and also
Graphene LED chip 10 and 12 is had, as such, it is possible to control at least two graphene LED chip in horseshoe diagram including at least two
In the most multiple wavelengthtunable points so that the plurality of wavelengthtunable point formed complementary color area, therefore, this complementary color area is white with LED
Color light source covers gamut area sum, more than the area of the maximum triangle that the immutable three primary colours of Fig. 1 medium wavelength are formed, this
Sample, can be by correspondingly regulating other multiple wavelength points of the first graphene LED chip 10 and 12, it is possible to make the present invention real
Execute the colour gamut indication range of example more than colour gamut indication range of the prior art.
For the clearer colour gamut indication range introduced in the embodiment of the present invention, here for an example simply: ginseng
Color displays principle schematic as shown in Figure 3, in Fig. 3, it is assumed that when the wavelength points of the second graphene LED chip 12 is 1, false
If the wavelengthtunable point that the first graphene LED chip 10 is in figure 3 includes at 2 o'clock to 14 o'clock, the white point of LED white light source 11 is
15 points, the most as seen from Figure 3, the colour gamut indication range of this light source assembly 100 is point centered by 15 o'clock, the first Graphene
Each wavelengthtunable point of LED chip 10 and red spot are the radial region that radiant collectively forms, and 1 and 14 points
Carry out the complementary color area that is mixed to form 1., the area sum in the envelope region that 1. this radial region and this complementary color area are constituted
It is the colour gamut indication range that the embodiment of the present invention can reach.As seen from Figure 3, above-mentioned 1 point, 7 and 14 compositions
Delta-shaped region by the covered gamut regions of white light source 11, it is equivalent to the area of the maximum triangle in Fig. 1, but Fig. 3
The area in overall envelope region is greater than the area of this triangle, therefore, the light source assembly 100 that the embodiment of the present invention provides
Substantially increase the colour gamut indication range of display device.
It should be noted that why the wavelengthtunable point of above-mentioned graphene LED chip can deep white point
It is positioned at outside the triangle that 1 point, 7 and 14 are constituted, is to be determined by the characteristic of Graphene LED；It addition, in the present invention
The white point that LED white light source 11 is sent, can be with stone by the summit of three primary colours and the primary light source of another reflection primary lights
Arbitrary wavelengthtunable point of ink alkene LED chip carries out line, and the color display device on this line all can show, then,
Along with the Discrete Change of the adjustment of the wavelength points of graphene LED chip, i.e. wavelength points, be equivalent to the summit of primary lights with each can
Adjust the color on the line on point all can show, so constitute above-mentioned described radial region.
In the light source assembly that the embodiment of the present invention provides, by adjustable for multiple emission wavelengths graphene LED chip is sealed
It is contained at least one second light cup, and by the LED white light source launching white light is encapsulated in the first light cup, thus logical
The grid voltage overregulating graphene LED chip obtains multiple wavelengthtunable point, and then makes these multiple wavelengthtunable points permissible
Constitute envelope region with multiple wavelength points of LED white light source, and guarantee that this i.e. colour gamut of area shared by envelope region shows model
Enclose the light source assembly provided more than the colour gamut indication range of display device in prior art, the i.e. embodiment of the present invention, it is possible to significantly
Improve the colour gamut indication range of display device.
The structural representation of the light source assembly embodiment two that Fig. 4 provides for the embodiment of the present invention, in the embodiment shown in Fig. 4
In, above-mentioned first graphene LED chip 10 and the second graphene LED chip 12 are correspondingly arranged at a second light cup 15 respectively
In.Optionally, the position of above-mentioned second graphene LED chip 12 and the first graphene LED chip 10 can arbitrarily be exchanged, and is formed
Embodiment shown in Fig. 4, as long as guaranteeing that LED white light source 11 is individually encapsulated in the first light cup 14.
The structural representation of the light source assembly embodiment three that Fig. 5 provides for the embodiment of the present invention, as it is shown in figure 5, the first stone
Ink alkene LED chip 10 and the second graphene LED chip 12 are co-located in a second light cup 15.Optionally, above-mentioned second
Graphene LED chip 12 and first graphene LED chip 10 position in a second light cup 15 can arbitrarily be exchanged, as long as
Guarantee that LED white light source 11 is individually encapsulated in the first light cup 14.
Optionally, in the above-described embodiment, above-mentioned LED white light source 11 can include the blue light core for launching blue light
Sheet 102 and the yellow fluorescent powder 103 being encapsulated in the silica gel on this blue chip 102 surface；Or, can include for launching indigo plant
The blue chip 102 of light and the green emitting phosphor 105 being encapsulated in the silica gel on this blue chip 102 surface and red fluorescence powder
104。
The light source assembly that above-mentioned Fig. 4 embodiment is provided, by light cup and the one-to-one relationship of LED chip, carries significantly
The high light extraction efficiency of each LED chip, the light source assembly that above-mentioned Fig. 5 is provided, greatly reduce being fabricated to of LED encapsulation
This, improve packaging efficiency.
The structural representation of the display device that Fig. 6 provides for the embodiment of the present invention.As shown in Figure 6, this liquid crystal indicator
200 can include backlight module 20 and display floater 21, and this backlight module 20 includes light involved in multiple above-described embodiment
Source component 100, these multiple light source assemblies 100 are arranged in backlight module by combination, and common display for this display floater 21 carries
For display backlight light source.
In this display device 200, due to have employed comprise the adjustable graphene LED chip of at least two emission wavelength, with
And for launching the LED white light source of white light, therefore by the grid voltage of regulation graphene LED chip obtain multiple can harmonic
Long, and then make these multiple wavelengthtunable points can constitute envelope region with multiple wavelength points of LED white light source, and guarantee
This area shared by envelope region i.e. colour gamut indication range more than the colour gamut indication range of display device in prior art, i.e. this
The display device 200 that bright embodiment provides, it is possible to be greatly improved the colour gamut indication range of display device.
The schematic flow sheet of the display packing of the display device using light source assembly that Fig. 7 provides for the embodiment of the present invention.
Display device in the present embodiment can have employed in this liquid crystal indicator for the liquid crystal indicator shown in above-mentioned Fig. 6
State the light source assembly shown in any embodiment of Fig. 2,4,5.As it is shown in fig. 7, the method includes:
S101: determine the gamut regions that at least two wavelengthtunable point of described graphene LED chip is constituted.
S102: if described gamut regions falls within the gamut regions of described LED white light source, then select color to use bright
Spend high described wavelengthtunable point to mix.
Concrete, based in the light source assembly involved by any embodiment of above-mentioned Fig. 2,4,5, employed in this light source assembly
The adjustable graphene LED chip of emission wavelength there is multiple wavelength points, the plurality of wavelength points can be mixed to form complementary color, once
This formation complementary color falls within white light source when can cover in color range, and according to the visibility function of human eye, as shown in Figure 8, wavelength is more
Near 555nm, the lumen number that unit power can be generated by is the highest, prioritizing selection by wavelength near the point of 555nm and first wave length
Point mixes, and the wavelengthtunable point that i.e. lumen number is the highest forms with multiple wavelength points of white light source and mixes light source.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered
Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (8)
1. a light source assembly, it is characterised in that this light source assembly includes at least two emission wavelength adjustable Graphene LED core
Sheet, for launching the LED white light source of white light, for launching a LED primary light source of primary lights；And described Graphene
In LED chip, multiple wavelengthtunable points multiple wavelength points with described LED white light source respectively collectively form colour gamut indication range.
Light source assembly the most according to claim 1, it is characterised in that be used for encapsulating described graphene LED chip, described
LED white light source matrix, including being provided with the LED package support of light cup, wherein, described graphene LED chip, described LED are white
Color light source is encapsulated in described light cup.
Light source assembly the most according to claim 1, it is characterised in that described graphene LED chip uses semi-reduction state
Graphene oxide composite material, by build chip face inner grid structure, to grid apply voltage to adjust described semi-reduction shape
The fermi level of the graphene oxide composite material of state, it is achieved regulate and control the emission wavelength of described graphene LED chip.
4. according to the light source assembly described in any one of claim 1-3, it is characterised in that described LED white light source include for
The blue chip launching blue light and the yellow fluorescent powder being encapsulated in the silica gel on described blue chip surface.
5. according to the light source assembly described in any one of claim 1-3, it is characterised in that the number of described second light cup is one
Individual；
Graphene LED chip described in described at least two is co-located in one the second light cup, and described LED white light
Light-source encapsulation is in the first light cup of LED package support.
6. according to the light source assembly described in any one of claim 1-3, it is characterised in that Graphene described in described at least two
LED chip is separately positioned in different one the second light cup, and described LED white light source is encapsulated in LED package support
The first light cup in.
7. a liquid crystal indicator, it is characterised in that including: backlight module and display floater, described backlight module includes many
Light source assembly arbitrary in individual claim 1-6, wherein, the plurality of light source assembly is arranged in backlight module by combination, altogether
It is all described display floater and display backlight light source is provided.
8. a display packing, it is characterised in that be applied in liquid crystal indicator described in claim 7, described method includes:
Determine the gamut regions that at least two wavelengthtunable point of described graphene LED chip is constituted；
If described gamut regions falls within the gamut regions of described LED white light source, then select the institute that color employing brightness is high
State wavelengthtunable point to mix.
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|---|---|---|---|
| CN201610816747.3A CN106292069A (en) | 2016-09-12 | 2016-09-12 | Light source assembly and liquid crystal indicator |
| US15/394,736 US20180075625A1 (en) | 2016-09-12 | 2016-12-29 | Led package structure, display apparatus, and method for color display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610816747.3A CN106292069A (en) | 2016-09-12 | 2016-09-12 | Light source assembly and liquid crystal indicator |
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