CN106773287A - A kind of encapsulation quanta point material display panel and the backlight module comprising the panel - Google Patents
A kind of encapsulation quanta point material display panel and the backlight module comprising the panel Download PDFInfo
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- CN106773287A CN106773287A CN201611110739.3A CN201611110739A CN106773287A CN 106773287 A CN106773287 A CN 106773287A CN 201611110739 A CN201611110739 A CN 201611110739A CN 106773287 A CN106773287 A CN 106773287A
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- quanta point
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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
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
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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
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses one kind encapsulation quanta point material display panel, including color conversion layer, dichroism optical material layer and liquid crystal material encapsulated layer, color conversion layer is excited generation excitation line by emergent ray, dichroism optical material layer fits in the lower section of color conversion layer, and it is provided with coating film area, the coating film area has high-permeability for the wave band of preassigned designated color, and there is high reflection characteristic to the wave band of other colors in addition to designated color, the excitation line that will can be scattered towards the direction of dichroism optical material layer reflects to the direction of color conversion layer, so as to reduce the loss of light energy, significantly improve light extraction efficiency.Meanwhile, the invention also discloses a kind of backlight module comprising the panel.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of encapsulation quanta point material display panel.The present invention is simultaneously
Further relate to a kind of backlight module.
Background technology
Liquid crystal display is a kind of display device of planar ultra-thin, and it is made up of a number of colored or monochrome pixels,
It is positioned over light source or reflecting surface front.Liquid crystal display power consumption is very low, therefore extremely engineer's favor, it is adaptable to use battery
Electronic equipment.Its cardinal principle is to produce point, line, surface to coordinate back fluorescent tube to be constituted picture with galvanism liquid crystal molecule.
As its name suggests, liquid crystal display realizes work by liquid crystal.Liquid crystal is a kind of spy between a solid and a liquid
Different material, it is in a liquid state under a kind of organic compound, normality, but its molecules align is but unconventional as solid crystal
Then, therefore liquid crystal is named, its another special nature is that, if applying an electric field to liquid crystal, can change its molecule
Arrangement, if at this moment give its matching polarized light piece, it just have prevent light pass through effect (when electric field is not applied, light
Can smoothly pass through), if coordinating colored filter again, change adds to liquid crystal voltage size, just can change a certain color printing opacity
Amount number, it is also possible to figuratively changing the voltage at liquid crystal two ends can just change its light transmittance (but this must be with practice
Polarizer coordinates).
As shown in figure 1, being the structural representation of liquid crystal panel common in current industry, the sub-pixel of normal liquid crystal panel
Optical filter (color filter) is respectively provided with three kinds of pigment and is absorbed, and the pigment that for example red sub-pixel is set is to feux rouges ripple
Section has permeability, has absorption characteristic to remaining wave band, and the pigment that green sub-pixels are set has permeability to green light band,
There is absorption characteristic to remaining wave band, the pigment that blue subpixels are set has permeability to blue wave band, has to remaining wave band
There is absorption characteristic.In the prior art, typically using white backlight, then using pigment colored filter, by backlight spectra
Red, green and blue wave band spectrum leach, because colour filter only extracts the light of certain wave band in single sub-pixel, other
The light of wave band needs to leach, and transmitance is than relatively low, thus energy loss is more.
In order to improve the colour gamut of screen, current quantum dot liquid crystal module group backlight scheme is blue light excitation quantum point material in industry
Material produces the scheme of white light, and such colour gamut is up to more than 100%NTSC.Specifically, quanta point material is encapsulated in film by the program
In piece, as a diaphragm in module, the top of diffuser plate, the chaffy lower section of institute are placed on.Due to quanta point material grain
Footpath is smaller, reaches Nano grade (red (wavelength 630nm) and green (wavelength 530nm) quanta point material that for example we commonly use
Particle diameter in 3-7nm or so), thus the absorption efficiency of quantum dot is higher, reaches more than 90%, therefore in the prior art
A kind of improved procedure be to put in the panel quantum dot, be used to substitute the colour filter of panel.
As shown in Fig. 2 being a kind of technology of quantum dots schematic diagram in the prior art, backlight uses Blue backlight, red pixel
Interior setting red quantum dot encapsulation quanta point material pixel cell, sets green quantum dot encapsulation quanta point material in green pixel
Pixel cell, blue pixel is directed through backlight, and pigments absorbalight colour filter is not used, thus substantially increases liquid crystal module
Light extraction efficiency.These converting units are mainly made up of fluorescent material, before the particle diameter (the 1/100 of such as wavelength) of fluorescent material
Differed to scattering light (with the unidirectional scattering of incident beam) and rear orientation light (with the rightabout scattering of incident beam)
Less, with the gradually increase of particle diameter, forward scattering is significantly increased, and back scattering reduces.
As shown in figure 3, be the scattering light of all directions when existing current fluorescent particles are a diameter of 20 nanometers, forward light with it is backward
The ratio of light relatively, and use the red (wavelength 630nm) commonly used in the LCD backlight module of technology of quantum dots and
, in 3-7nm or so, backward astigmatism is more, close to half for the particle diameter of green (wavelength 530nm) quanta point material.It is glimmering by these
The operating diagram of the molecular color conversion layer of light bead as shown in figure 4, when blue light reaches the color conversion layer of panel sub-pixel,
The light that blue light excitation quantum point is produced has backward light, and this part cannot be utilized, and cause the reduction of light extraction efficiency.
As can be seen here, how existing panel is improved, so as to be carried on the basis of the colour gamut for ensureing backlight module
The usage amount of high light-emitting efficiency and reduction quanta point material, as those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
The invention provides one kind encapsulation quanta point material display panel, the rear orientation light for being used to inspire is reflexed to
Just (preceding) is to so as to improve light extraction efficiency.In the backlight module comprising backlight, the backlight is used to produce the panel application
Raw emergent ray, the panel includes color conversion layer, dichroism optical material layer and liquid crystal material encapsulated layer, wherein：
The color conversion layer is excited generation excitation line by the emergent ray；
The dichroism optical material layer fits in the lower section of the color conversion layer, and is provided with coating film area；
The coating film area has a high-permeability for the wave band of the designated color, and to except the designated color with
The wave band of other outer colors has high reflection characteristic, by swashing for being scattered towards the direction of the dichroism optical material layer
Isolychn reflects to the direction of the color conversion layer；
The liquid crystal material encapsulated layer is arranged at the lower section of the dichroism optical material layer, and positioned at the emergent light
Line is projected to the path of the color conversion layer.
Preferably, heretofore described dichroism optical material layer is additionally provided with regional transmission, wherein：
The regional transmission has light transmission features high for the wave band of the designated color, to improve the designated color
The transmitance of wave band.
Preferably, heretofore described color conversion layer comprising each color encapsulation quanta point material pixel cell and
Support, wherein：
The support is arranged between each pixel cell；
Each pixel cell and the support are packaged by water proof oxygen material.
Preferably, heretofore described anti-reflection region and the coating film area are the encapsulation quantum according to each color
What the distribution of the pixel cell of point material was divided, wherein：
The coating film area is corresponding to particle diameter in the color conversion layer more than the encapsulation quanta point material of predetermined threshold value
The position of pixel cell.
Preferably, it is provided with scattering particles in the pixel cell of the encapsulation quanta point material of heretofore described designated color.
Preferably, heretofore described backlight includes the LED chip corresponding to the designated color, wherein：
The light of the designated color is produced after powered up by the LED chip.
Preferably, heretofore described liquid crystal material encapsulated layer by upper polarizer, transparency electrode, support, comprising liquid crystal
Liquid crystal box, lower glass substrate and lower polarizer group into, wherein：
The support is arranged between each liquid crystal box, and the two sides of the liquid crystal box is respectively provided with the transparent electricity
Pole；
The liquid crystal box sets the upper polarizer, the liquid crystal towards the one side of the dichroism optical material layer
Box sets the lower glass substrate relative to the another side of the dichroism optical material layer, and the lower glass substrate is relative
In the another side of the liquid crystal box, the lower polarizer is set.
Correspondingly, the invention allows for a kind of backlight module, comprising backlight, diaphragm, light guide plate, optical material layer with
And encapsulation quanta point material display panel as described above, wherein：
The backlight is arranged at the side of the light guide plate；
The top of the light guide plate sets diaphragm, and the lower section of light guide plate described in sets the optical material layer, the optics
Material layer has high reflectivity for the wave band of the designated color；
The diaphragm arrangement is in the panel and the centre of the light guide plate.
Preferably, the backlight includes the LED chip, the fluorescent material and LED support, wherein：
The one side of the LED support caves inward；
The LED chip laminating is arranged at the center of the indent of the LED support；
The fluorescent material is filled in the part of the LED support indent.
Correspondingly, the application also proposed another backlight module comprising backlight, diaphragm, diffuser plate and as described above
Encapsulation quanta point material display panel, wherein：
The backlight is located at the lower section of the diffuser plate；
The panel is arranged at the top of the diffuser plate；
The diaphragm is located at the centre of the panel and the diffuser plate.
Preferably, the backlight includes the LED chip, the fluorescent material and LED support, wherein：
The one side of the LED support caves inward；
The LED chip laminating is arranged at the center of the indent of the LED support；
The fluorescent material is filled in the part of the LED support indent.
By application encapsulation quanta point material display panel proposed by the present invention, including color conversion layer, dichroism light
Material layer and liquid crystal material encapsulated layer are learned, color conversion layer is excited generation excitation line, dichroism optics by emergent ray
Material layer fits in the lower section of color conversion layer, and is provided with coating film area, and the coating film area is for preassigned designated color
Wave band there is high-permeability, and there is high reflection characteristic to the wave band of other colors in addition to designated color, can be by
Reflected to the direction of color conversion layer towards the excitation line that the direction of dichroism optical material layer scatters, so as to reduce light
The loss of energy, significantly improves light extraction efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of liquid crystal panel common in current industry；
Fig. 2 is a kind of technology of quantum dots schematic diagram in the prior art；
The scattering light of all directions when Fig. 3 is a diameter of 20 nanometers existing current fluorescent particles；
Fig. 4 is the operating diagram of the color conversion layer of fluorescent particles composition；
Fig. 5 is a kind of structural representation of encapsulation quanta point material display panel that the application is proposed,
Wherein, 5.1 is Blue backlight module, and 5.2 is lower polarizer, and 5.3 is lower glass substrate, and 5.4 is transparency electrode,
5.5 is transparency electrode (negative pole altogether), and 5.6 is liquid crystal box, and 5.7 is support, and 5.8 is coating film area, and 5.9 is anti-reflection region,
5.10 turn unit for the color of red sub-pixel, and 5.11 turn unit for the color of green sub-pixels, and 5.12 is blue subpixels
Color turns unit, and 5.13 is top glass substrate；
Fig. 6 is a kind of structural representation of backlight module of proposition in the application specific embodiment,
Wherein, 6.1 is blue light source component, and 6.2 is light guide plate, and 6.3 is optical material layer, and 6.4 is blooming piece, 6.5
It is encapsulation quanta point material display panel of the invention；
Fig. 7 is the structural representation of another backlight module of proposition in the application specific embodiment,
Wherein, 7.1 is blue light source component, and 7.2 is diffuser plate, and 7.3 is blooming piece, and 7.4 is encapsulation of the invention
Quanta point material display panel.
Specific embodiment
Just as described in background the invention, when fluorescent particles of the prior art are a diameter of 20 nanometers, in all directions
On scattering light, the ratio of forward light and backward light is relatively.And in the LCD backlight module using technology of quantum dots
, in 3-7nm, this part produces for conventional red (wavelength 630nm) and the particle diameter of green (wavelength 530nm) quanta point material
Backward astigmatism it is more, close to half.So, when blue light reaches the color conversion layer of panel sub-pixel, blue light excitation quantum point
The light of generation has backward light (mainly in the rear more to light of red and green quanta point material generation), and this part is backward
Light cannot be utilized, so as to cause the problem of light extraction efficiency reduction.
For it is above-mentioned in the prior art red and green quantum dot material part because particle diameter is big and caused by it is rear to
Light scattering increases, and this part light cannot be utilized, and causes the problem of light emission rate reduction.The present invention proposes a kind of encapsulation quantum
Point material display panel, a reflecting layer is provided with the lower section of color conversion layer, and plated film area is provided with the reflecting layer
Domain, the coating film area can have a high-permeability for the wave band of preassigned designated color, and to except designated color with
The wave band of other outer colors has high reflection characteristic, and the excitation line that will can be scattered towards the direction in reflecting layer turns to color
The direction reflection of layer is changed, so as to reduce the loss of light energy, light extraction efficiency is significantly improved.
Specifically, the encapsulation quanta point material display panel include color conversion layer, dichroism optical material layer and
Liquid crystal material encapsulated layer, these parts include following principal character：
(1) color conversion layer is excited generation excitation line by the emergent ray；
In the inventive solutions, color conversion layer is by the encapsulation quantum dot material comprising multiple color conversion particles
Material pixel cell composition, when there is light source to be irradiated on the color conversion layer, in its encapsulation quanta point material pixel cell
Color conversion particles can excite the scattering light of all directions under the irradiation of light source, and can change the color of the light source, for example, working as
When the color conversion particles are green conversion particle, the green excitation line in all directions can be inspired, when color conversion
When particle is red conversion particle, the red excitation line in all directions can be inspired.
It should be noted that the light source in the present invention is produced by backlight, the effect of backlight is to encapsulation amount
Son point material display panel provides the emergent ray of designated color, and certainly, backlight includes the LED core corresponding to designated color
Piece, in a preferred embodiment of the invention, the light of designated color is produced after powered up by LED chip.Further, according to light
The difference of source component, backlight both can be the LED light source of solid color, or by the combination of LED light source and quantum pipe, no
Modes of emplacement of the backlight of same type in backlight module is also not quite similar, and for example side is placed or in optical material layer
Lower section is placed, and these belong to protection scope of the present invention.
(2) the dichroism optical material layer fits in the lower section of the color conversion layer, and is provided with coating film area；
Herein, mainly in view of light source after being excited by color conversion layer, the exciting light of all directions can be produced
Line, understands some light and scatters backward, leads to not be utilized, therefore, the present invention sets by below color conversion layer
Dichroism optical material layer is put, namely dichroism optical material layer is set in the position of excitation line backward, when backward
The excitation line of scattering is reached after the dichroism optical material layer, and is reflected back again forward, so, all of light
Line all can be to forward scatter.
Specifically, coating film area is provided with the dichroism optical material layer, to reach to exciting for scattering backward
The transmitting effect of light, specific reflection process will elaborate subsequently, certainly, and in some implement scenes, can be by
Coating film area is arranged on whole dichroism optical material layer.Further, each face is additionally provided with the color conversion layer
The encapsulation quanta point material pixel cell and support of sub-pixels, also, in a preferred embodiment of the invention, support can be with
It is arranged between each encapsulation quanta point material pixel cell, and each pixel cell and support are sealed by water proof oxygen material
Dress.
It should be noted that in some specific implementation scenes, can also be set on dichroism optical material layer and removed
Anti-reflection region beyond coating film area, the effect of this is anti-reflection region has enhancing emergent ray, so, when the outgoing of backlight
Light is reached when on the dichroism optical material layer, can be penetrated emergent ray enhancing while through the anti-reflection region
Go out, specific embodiment will not be repeated here the elaboration in follow-up description.
(3) coating film area has high-permeability for the wave band of the designated color, and to except the specified face
The wave band of other colors beyond color has high reflection characteristic, will be scattered towards the direction of the dichroism optical material layer
Direction from excitation line to the color conversion layer reflect；
As described above, the present invention is provided with coating film area on dichroism sheet emitting, the coating film area has to specifying
The wave band of color has a high-permeability, and has high reflection characteristic to the wave band of other colors in addition to the designated color,
Using the characteristic, it will be understood to those skilled in the art that only there is high-permeability to a certain particular color in the region, to it
He has high reflectivity at color.So, after backlight of the invention launches the light of designated color, two can smoothly be passed through
Chromotropism optical material layer reaches color conversion layer, in the effect of the color conversion particles of encapsulation quanta point material pixel cell
Under, inspire the excitation line of the non-designated color of all directions, the excitation line of the non-designated color wherein in backward directions
After dichroism optical material layer is reached, the characteristic reflected frontward that high reflectivity is passed through by dichroism optical material layer, weight
Newly it is utilized, so as to improve light extraction efficiency.
It should be noted that coating film area and anti-reflection region are changed according to color in a preferred embodiment of the invention
The distribution of the encapsulation quanta point material pixel cell of each color sub-pixels is divided in layer, therefore, currently preferred embodiment party
Formula is that particle diameter encapsulates quanta point material pixel cell more than predetermined threshold value during the coating film area is arranged at into color conversion layer
Position, certainly, the pre-set threshold value can be according to the corresponding setting of the emergent ray of backlight, it is also possible to enter according to the actual needs
Row is set, and these changes are all within protection scope of the present invention.
As described above, the present invention is in some specific embodiments, it is also provided with dichroism optical material layer
Anti-reflection region, this is anti-reflection, and region has light transmission features high with the wave band to designated color, to improve the ripple of the designated color
The transmitance of section.
Specifically, after backlight launches the light of designated color, can be with after dichroic is reached as optical material layer
The anti-reflection region is smoothly passed through, and corresponding encapsulation quanta point material pixel cell is identical with the designated color, therefore, at this
Designated color can't produce excitation line after reaching color conversion layer, but be directed through color conversion layer forescatering.
It should be noted that being grain during the anti-reflection region is arranged at into color conversion layer in the preferred embodiment of the present invention
Less than the position of the encapsulation quanta point material pixel cell of predetermined threshold value, the pre-set threshold value can be according to the emergent light of backlight in footpath
The corresponding setting of line, it is also possible to be configured according to the actual needs, it is of course also possible to according to actual needs set anti-reflection region
It is placed on whole dichroism optical material layer, these changes are all within protection scope of the present invention.
(4) the liquid crystal material encapsulated layer is arranged at the lower section of the dichroism optical material layer, and positioned at it is described go out
Light is penetrated to project to the path of the color conversion layer.
The present invention also needs to set liquid crystal material encapsulated layer in the lower section of dichroism optical material layer, specifically, the liquid
Brilliant material package layer is by upper polarizer, transparency electrode, support, the liquid crystal box comprising liquid crystal, lower glass substrate and lower polarization
Piece is constituted, and in the preferred embodiment of the present invention, support is arranged between each liquid crystal box, and the two sides of liquid crystal box is respectively provided with
Transparency electrode；Liquid crystal box towards dichroism optical material layer one side set upper polarizer, liquid crystal box relative to two to
The another side of color optical material layer sets lower glass substrate, and lower glass substrate sets lower inclined relative to the another side of liquid crystal box
Shake piece.
Understood based on encapsulation quanta point material display panel described above, the present invention is mainly by color conversion layer
Below be provided with dichroism optical material layer, and set on the dichroism optical material layer corresponding with color conversion layer
Coating film area is put, when there is the excitation line for scattering backward, by the coating film area of dichroism optical material layer to forward
Reflection, makes it be utilized again, so as to reduce the loss of light energy, significantly improves light extraction efficiency.
Accordingly, the invention allows for a kind of backlight module, the backlight module includes backlight, diaphragm, light guide plate, light
Material layer and the encapsulation quanta point material display panel being explained as above are learned, specific set-up mode is：Backlight is arranged at
The side of light guide plate；The top of light guide plate sets diaphragm, and the lower section of light guide plate sets optical material layer, and optical material layer is for referring to
The wave band for determining color has high reflectivity；Diaphragm arrangement is in encapsulation quanta point material display panel and the centre of light guide plate.
It should be noted that in a preferred embodiment of the invention, backlight includes LED chip, fluorescent material and LED
Support, specifically, the one side of LED support caves inward；LED chip laminating is arranged at the center of the indent of LED support；Fluorescent material
It is filled in the part of LED support indent.
Correspondingly, the application also proposed another backlight module, and the backlight module includes backlight, diaphragm, diffuser plate
And the as above encapsulation quanta point material display panel of any one, specific set-up mode is：Backlight is located under diffuser plate
Side；Encapsulation quanta point material display panel is arranged at the top of diffuser plate；Diaphragm be located at encapsulation quanta point material display panel with
The centre of diffuser plate.
It should be noted that in a preferred embodiment of the invention, backlight includes LED chip, fluorescent material and LED
Support, specifically, the one side of LED support caves inward；LED chip laminating is arranged at the center of the indent of LED support；Fluorescent material
It is filled in the part of LED support indent.
In order to technological thought of the invention is expanded on further, in conjunction with specific application scenarios, to technical side of the invention
Case is illustrated.
As shown in figure 5, a kind of structural representation of the encapsulation quanta point material display panel for the application proposition, 5.1 are
Blue backlight module, there is provided blue excitation light source, the general blue led for selecting peak wavelength in 440-455nm or so is used as the back of the body
Light source；5.2 is the lower polarizer of encapsulation quanta point material display panel；5.3 is the lower glass of encapsulation quanta point material display panel
Glass substrate；5.4 is transparency electrode；5.5 is transparency electrode (negative pole altogether)；5.6 is liquid crystal box, and the inside is equipped with liquid crystal；5.7 is liquid
Support between brilliant box and liquid crystal cell；(dichroism reflects in the 5.8 prevention quantum dot back scattering reflecting layer narrated for the present invention
Layer), specific implementation is：The blue light that blue light backlight module 5.1 sends, reaches 5.8 dichroism reflecting layer, due to the reflection
Layer only has reflection characteristic to remaining visible light wave range in addition to blue wave band, thus blue light can be directed through, further,
Blue light excites generation feux rouges and green glow after reaching quantum dot layer, and the scattering of all directions occurs, a part of forward scattering, this portion
Dividing to be used directly, and another part back scattering, after reaching 5.8 dichroism reflecting layer, (because should before being reflected to
Region has the characteristic that the light of remaining visible light wave range in addition to blue wave band is reflected back), it is utilized again, so as to carry
Light extraction efficiency high, in addition it is also necessary to which explanation, 5.8 dichroism reflecting layer are positioned only at red and green pixel bottom；5.9 are
The corresponding film plating layer in blue pixel bottom, the region can be blank, it is also possible to set anti-reflection film, improve the transmitance of blue light；
5.10 is the encapsulation quanta point material pixel cell of encapsulation quanta point material display panel red sub-pixel of the present invention, its
Inside is provided with red quantum dot material, and the wavelength of quantum dot is typically selected between 620-650nm, and the half-wave of quantum dot is wide more
Narrow excitation is higher, thus selects half-wave narrower quantum dot wide as far as possible；5.11 is encapsulation quantum dot of the present invention
The encapsulation quanta point material pixel cell of material display panel green sub-pixels, it is internal there is provided green quanta point material, amount
The wavelength of son point is typically selected between 520-550nm, and the half-wave narrower excitation wide of quantum dot is higher, thus selects as far as possible
Select half-wave narrower quantum dot wide；The encapsulation amount of 5.12 encapsulation quanta point material display panel blue subpixels of the present invention
Son point material pixel cell, because backlight is blue-light source, the unit can be not provided with thing, allow blue light to be directed through, in order to carry
The rising angle of blue pixel high, it is contemplated that set scattering particles in the unit, makes to be scattered by the blue light of the unit, so as to carry
The visible angle of blue pixel high.5.13 is top glass substrate.
As shown in fig. 6, being a kind of structural representation of backlight module of proposition in the application specific embodiment, its is specific
It is the side entering type liquid crystal module schematic diagram using encapsulation quanta point material display panel set forth in the present invention, wherein 6.1 is indigo plant
Radiant component, the light of outgoing blue wave band；6.2 is light guide plate；6.3 is optical material layer, and its feature is to blue wave band
With reflectivity higher；6.4 is optical film combination, and 6.5 is encapsulation quanta point material display panel proposed by the invention.
As shown in fig. 7, be the structural representation of another backlight module of proposition in the application specific embodiment, its tool
Body is the directly-down liquid crystal module schematic diagram using encapsulation quanta point material display panel set forth in the present invention, wherein 7.1 are
Blue light source component, the light of outgoing blue wave band；7.2 is diffuser plate；7.3 is optical film combination；7.4 are carried by the present invention
The encapsulation quanta point material display panel for going out.
As can be seen here, the present invention does not only disclose a kind of encapsulation quanta point material display panel, meanwhile, invention additionally discloses
A kind of backlight module comprising the panel.The encapsulation quanta point material display panel specifically includes color conversion layer, dichroic
Property optical material layer and liquid crystal material encapsulated layer, color conversion layer are excited generation excitation line by emergent ray, dichroism
Optical material layer fits in the lower section of color conversion layer, and is provided with coating film area, and the coating film area is specified for preassigned
The wave band of color has a high-permeability, and has high reflection characteristic, energy to the wave band of other colors in addition to designated color
Enough excitation lines that will be scattered towards the direction of dichroism optical material layer reflect to the direction of color conversion layer, so as to reduce
The loss of light energy, significantly improves light extraction efficiency.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can lead to
Cross hardware realization, it is also possible to realize by the mode of software plus necessary general hardware platform.Based on such understanding, this hair
Bright technical scheme can be embodied in the form of software product, and the software product can be stored in a non-volatile memories
Medium (can be CD-ROM, USB flash disk, mobile hard disk etc.) in, including some instructions are used to so that a computer equipment (can be
Personal computer, server, or network equipment etc.) perform method described in each implement scene of the invention.
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram for being preferable to carry out scene, module in accompanying drawing or
Flow is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that module in device in implement scene can according to implement scene describe into
Row is distributed in the device of implement scene, it is also possible to carry out one or more dresses that respective change is disposed other than this implement scene
In putting.The module of above-mentioned implement scene can merge into a module, it is also possible to be further split into multiple submodule.
The invention described above sequence number is for illustration only, and the quality of implement scene is not represented.
Disclosed above is only several specific implementation scenes of the invention, but, the present invention is not limited to this, Ren Heben
What the technical staff in field can think change should all fall into protection scope of the present invention.
Claims (9)
1. it is a kind of to encapsulate quanta point material display panel, it is characterised in that to be applied in the backlight module comprising backlight, it is described
Backlight is used to producing the emergent ray of designated color, the panel include color conversion layer, dichroism optical material layer and
Liquid crystal material encapsulated layer, wherein：
The color conversion layer is excited generation excitation line by the emergent ray；
The dichroism optical material layer fits in the lower section of the color conversion layer, and is provided with coating film area；
The coating film area has high-permeability for the wave band of the designated color, and in addition to the designated color
The wave band of other colors has high reflection characteristic, the exciting light that will be scattered towards the direction of the dichroism optical material layer
Line reflects to the direction of the color conversion layer；
The liquid crystal material encapsulated layer is arranged at the lower section of the dichroism optical material layer, and is penetrated positioned at the emergent ray
Go out to the path of the color conversion layer.
2. it is as claimed in claim 1 to encapsulate quanta point material display panel, it is characterised in that the dichroism optical material
Layer is additionally provided with regional transmission, wherein：
The regional transmission has light transmission features high for the wave band of the designated color, to improve the wave band of the designated color
Transmitance.
3. the encapsulation quanta point material display panel as described in any one of claim 1 or 2, it is characterised in that the color turns
The pixel cell and support of encapsulation quanta point material of the layer comprising each color are changed, wherein：
The support is arranged between each pixel cell；
Each pixel cell and the support are packaged by water proof oxygen material.
4. encapsulation quanta point material display panel as claimed in claim 3, it is characterised in that the anti-reflection region and described
Coating film area is divided according to the distribution of the pixel cell of the encapsulation quanta point material of each color, wherein：
Pixel of the coating film area corresponding to particle diameter in the color conversion layer more than the encapsulation quanta point material of predetermined threshold value
The position of unit.
It is 5. as claimed in claim 4 to encapsulate quanta point material display panel, it is characterised in that
Scattering particles is provided with the pixel cell of the encapsulation quanta point material of the designated color.
6. it is as claimed in claim 5 to encapsulate quanta point material display panel, it is characterised in that the backlight is included and corresponded to
The LED chip of the designated color, wherein：
The light of the designated color is produced after powered up by the LED chip.
7. encapsulation quanta point material display panel as claimed in claim 6, it is characterised in that the liquid crystal material encapsulated layer by
Upper polarizer, transparency electrode, support, the liquid crystal box comprising liquid crystal, lower glass substrate and lower polarizer group into, wherein：
The support is arranged between each liquid crystal box, and the two sides of the liquid crystal box is respectively provided with the transparency electrode；
The liquid crystal box sets the upper polarizer, the liquid crystal box towards the one side of the dichroism optical material layer
Another side relative to the dichroism optical material layer sets the lower glass substrate, and the lower glass substrate is relative to institute
The another side for stating liquid crystal box sets the lower polarizer.
8. a kind of backlight module, it is characterised in that comprising backlight, diaphragm, light guide plate, optical material layer and such as claim
Encapsulation quanta point material display panel described in any one of 1-7, wherein：
The backlight is arranged at the side of the light guide plate；
The top of the light guide plate sets diaphragm, and the lower section of light guide plate described in sets the optical material layer, the optical material
Layer has high reflectivity for the wave band of the designated color；
The diaphragm arrangement is in the panel and the centre of the light guide plate.
9. a kind of backlight module, it is characterised in that comprising backlight, diaphragm, diffuser plate and such as any one of claim 1-7 institute
The encapsulation quanta point material display panel stated, wherein：
The backlight is located at the lower section of the diffuser plate；
The panel is arranged at the top of the diffuser plate；
The diaphragm is located at the centre of the panel and the diffuser plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110739.3A CN106773287A (en) | 2016-12-06 | 2016-12-06 | A kind of encapsulation quanta point material display panel and the backlight module comprising the panel |
| PCT/CN2017/100727 WO2018103392A1 (en) | 2016-12-06 | 2017-09-06 | Quantum dot display panel, backlight module, and liquid crystal display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611110739.3A CN106773287A (en) | 2016-12-06 | 2016-12-06 | A kind of encapsulation quanta point material display panel and the backlight module comprising the panel |
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| CN106773287A true CN106773287A (en) | 2017-05-31 |
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| CN111045257A (en) * | 2020-01-17 | 2020-04-21 | 福州大学 | Display panel based on quantum dot liquid crystal molecules and manufacturing method thereof |
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| US20230176275A1 (en) * | 2019-02-15 | 2023-06-08 | Intematix Corporation | Color Liquid Crystal Displays and Display Backlights |
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