CN110058449A - Quantum dot liquid crystal display - Google Patents
Quantum dot liquid crystal display Download PDFInfo
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- CN110058449A CN110058449A CN201910393239.2A CN201910393239A CN110058449A CN 110058449 A CN110058449 A CN 110058449A CN 201910393239 A CN201910393239 A CN 201910393239A CN 110058449 A CN110058449 A CN 110058449A
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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
- G02F1/133528—Polarisers
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
-
- 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
- G02F1/133504—Diffusing, scattering, diffracting elements
- G02F1/133507—Films for enhancing the luminance
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- 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)
- Polarising Elements (AREA)
Abstract
A kind of quantum dot liquid crystal display, comprising: liquid crystal display panel and backlight module；The liquid crystal display panel contains the first quantum dot film layer, and the backlight module contains the second quantum dot film layer；Relationship between the film thickness y of the second quantum dot film layer and the film thickness x of the first quantum dot film layer is as follows: y=0.264/T2*x2-0.9312x+T1；Wherein, T1 is the liquid crystal display panel without quantum dot film layer, when the backlight module of arranging in pairs or groups obtains best white picture described in the second quantum dot film layer film thickness；T2 is the backlight module without quantum dot film layer, when the liquid crystal display panel of arranging in pairs or groups obtains best white picture described in the first quantum dot film layer film thickness.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of quantum dot liquid crystal displays.
Background technique
At present since high color purity, spectrum possessed by quanta point material (Quantum Dot, QD) itself are continuously adjustable etc.
Excellent properties become 21 century the most outstanding luminescent material, can increase substantially existing LCD's in display colour gamut
Color representation, therefore its display application is widely studied in recent years.Existing QD-OC (quantum dot liquid crystal display panel) has view
Angle is very big, the higher advantage of colour gamut.The visual angle of the volume production common liquid crystals TV of existing market sale is about 60 °, quantum dot TV
Visual angle is about 80 °.Quantum dot film layer is introduced on the polarizing layer of tft array substrate side, fits in polarizing layer by the prior art
Visual angle is improved to 140 ° or more, but due to launching efficiency is low in outside (QD-POL), it is more difficult to reach ideal high colour gamut,
Wide viewing angle, high energy efficiency requirement.
In conclusion existing quantum dot liquid crystal display, is fitted in polarizing layer or chromatic filter layer for quantum dot film layer
When, due to launching efficiency is low, it is more difficult to reach ideal high colour gamut, wide viewing angle, high energy efficiency requirement, further result in display
It is ineffective.
Summary of the invention
The present invention provides a kind of new quantum dot liquid crystal display, is able to ascend the display effect of quantum dot liquid crystal display
Fruit, to solve existing quantum dot liquid crystal display, when quantum dot film layer is fitted in polarizing layer or chromatic filter layer,
Due to launching efficiency, it is more difficult to reach ideal high colour gamut, wide viewing angle, high energy efficiency requirement, further result in display effect not
Good technical problem.
To solve the above problems, technical solution provided by the invention is as follows:
The present invention provides a kind of quantum dot liquid crystal display, comprising: liquid crystal display panel and be located at the liquid crystal display
The backlight module of below the panel；The liquid crystal display panel contains the first quantum dot film layer, and the backlight module contains the second amount
Son point film layer；Relationship between the film thickness y of the second quantum dot film layer and the film thickness x of the first quantum dot film layer is for example following
Shown in formula:
Y=0.264/T2*x2-0.9312x+T1；
Wherein, T1 is the liquid crystal display panel without quantum dot film layer, and the backlight module of arranging in pairs or groups obtains best white picture
The film thickness of Shi Suoshu the second quantum dot film layer；T2 is the backlight module without quantum dot film layer, the liquid crystal display panel of arranging in pairs or groups
The film thickness of first quantum dot film layer described in when obtaining best white picture.
According to one preferred embodiment of the present invention, the range of the film thickness x of the first quantum dot film layer is 0~50 micron, institute
The range for stating the film thickness y of the second quantum dot film layer is 0~100 micron.
According to one preferred embodiment of the present invention, in the quantum dot liquid crystal display, the backlight module includes blue backlight
Plate and the second quantum dot film layer, the liquid crystal display panel include the first quantum dot film being arranged from bottom to top
Layer, the first optical film layer, lower polarizing layer, tft array substrate, liquid crystal layer, color membrane substrates and upper polarizing layer.
According to one preferred embodiment of the present invention, in the quantum dot liquid crystal display, the backlight module includes being arrived by down
On the blue backlight, the second quantum dot film layer and the second optical film layer, the liquid crystal display panel that are stacked include
The first quantum dot film layer for being arranged from bottom to top, the first optical film layer, lower polarizing layer, tft array substrate, liquid crystal layer, coloured silk
Ilm substrate and upper polarizing layer.
According to one preferred embodiment of the present invention, in the quantum dot liquid crystal display, the backlight module includes being arrived by down
On the blue backlight, the second quantum dot film layer and third optical film layer, the liquid crystal display panel that are stacked include
The first quantum dot film layer for being arranged from bottom to top, lower polarizing layer, tft array substrate, liquid crystal layer, color membrane substrates and it is upper partially
Photosphere.
According to one preferred embodiment of the present invention, in the quantum dot liquid crystal display, the backlight module includes being arrived by down
On the blue backlight, the second quantum dot film layer and third optical film layer, the liquid crystal display panel that are stacked include
Tft array substrate, liquid crystal layer, the first quantum dot film layer and the color membrane substrates being arranged from bottom to top.
According to one preferred embodiment of the present invention, first optical film layer is prismatic lens.
According to one preferred embodiment of the present invention, second optical film layer is dual brightness enhancement film.
According to one preferred embodiment of the present invention, the third optical film layer include the prismatic lens that are stacked from bottom to top with
And dual brightness enhancement film.
According to one preferred embodiment of the present invention, the material of the first quantum dot film layer and the second quantum dot film layer
Including luminous nucleon and the inorganic protection shell that is wrapped in outside the luminous nucleon, the red light material of the luminous nucleon include CdSe,
Cd2One of SeTe and InAs or a variety of；The green light material of the luminous nucleon includes ZnCdSe2, InP and Cd2One in SSe
Kind is a variety of；The inorganic protection shell includes CdS, ZnSe, ZnCdS2, one of ZnS and ZnO or a variety of.
The invention has the benefit that quantum dot liquid crystal display provided by the invention, liquid crystal display panel and its under
It is respectively provided with certain thickness quantum dot film layer on the backlight module of side, increases the visual angle of quantum dot liquid crystal display, further
The energy consumption of quantum dot liquid crystal display is reduced, the display effect of quantum dot liquid crystal display is further improved.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of embodiment or technical solution in the prior art
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only some of invention
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structural schematic diagram of quantum dot liquid crystal display first embodiment of the present invention.
Fig. 2 is the structural schematic diagram of quantum dot liquid crystal display second embodiment of the present invention.
Fig. 3 is the structural schematic diagram of quantum dot liquid crystal display 3rd embodiment of the present invention.
Fig. 4 is the structural schematic diagram of quantum dot liquid crystal display fourth embodiment of the present invention.
Specific embodiment
The explanation of following embodiment is referred to the additional illustration, the particular implementation that can be used to implement to illustrate the present invention
Example.The direction term that the present invention is previously mentioned, such as [on], [under], [preceding], [rear], [left side], [right side], [interior], [outer], [side]
Deng being only the direction with reference to annexed drawings.Therefore, the direction term used be to illustrate and understand the present invention, rather than to
The limitation present invention.The similar unit of structure is with being given the same reference numerals in the figure.
The present invention is directed to existing quantum dot liquid crystal display, and quantum dot film layer is fitted in polarizing layer or colour
When filter layer, due to launching efficiency is low, it is more difficult to reach ideal high colour gamut, wide viewing angle, high energy efficiency requirement, further lead
The technical issues of causing poor display effect, the present embodiment is able to solve the defect.
As shown in Figure 1, being the structural schematic diagram of quantum dot liquid crystal display first embodiment of the present invention.Wherein, of the invention
There is provided a kind of quantum dot liquid crystal display, comprising: liquid crystal display panel 10 and positioned at 10 lower section of the liquid crystal display panel
Backlight module 20；The backlight module 20 includes blue backlight 21 and the second quantum dot film layer 22, the liquid crystal display
Panel 10 includes the first quantum dot film layer 11 being arranged from bottom to top, the first optical film layer 12, lower polarizing layer 13, TFT gusts
Column substrate 14, liquid crystal layer 15, color membrane substrates 16 and upper polarizing layer 17.
Specifically, between the film thickness y of the second quantum dot film layer 22 and the film thickness x of the first quantum dot film layer 11
Relationship is as shown by the following formula:
Y=0.264/T2*x2-0.9312x+T1；
Wherein, T1 is the liquid crystal display panel without quantum dot film layer, and the backlight module 20 of arranging in pairs or groups obtains best white picture
The film thickness of second quantum dot film layer 22 described in when face；T2 is the backlight module without quantum dot film layer, the liquid crystal display of arranging in pairs or groups
The film thickness of first quantum dot film layer 11 described in when panel 10 obtains best white picture.
Specifically, the range of the film thickness x of the first quantum dot film layer 11 is 0~50 micron, the second quantum dot film
The range of the film thickness y of layer 22 is 0~100 micron.
Specifically, first optical film layer 12 is prismatic lens.
Specifically, the material of the first quantum dot film layer 11 and the second quantum dot film layer 22 include luminous nucleon with
The inorganic protection shell being wrapped in outside the luminous nucleon, the red light material of the luminous nucleon includes CdSe, Cd2In SeTe and InAs
It is one or more；The green light material of the luminous nucleon includes ZnCdSe2, InP and Cd2One of SSe or a variety of；The nothing
It includes CdS, ZnSe, ZnCdS that machine, which protects shell,2, one of ZnS and ZnO or a variety of.
Specifically, it when light is projected from the blue backlight 21, is inspired after the second quantum dot film layer 22 relatively narrow
The exciting light of halfwidth inspires the exciting light of narrower halfwidth, using the first quantum dot film layer 11 so as to be promoted
The gamut range of display device improves picture quality.This is because quantum dot itself has light transfer capability, swash by blue light
In the case where hair, electron transition occurs, the compound of electron hole is then completed in the form of fluorescent radiation；As typical zero dimension
Nano material, quantum dot all has the size within the scope of quantum confinement in all directions, therefore direction is not present in its fluorescent radiation
Selectivity, can be bright so as to each visual angle of active balance liquid crystal display with 360 ° of indistinguishably radiofluorescences after being stimulated
Degree.
As shown in Fig. 2, being the structural schematic diagram of quantum dot liquid crystal display second embodiment of the present invention.Including: liquid
LCD panel 10 and the backlight module 20 below the liquid crystal display panel 10；The backlight module 20 includes under
To the blue backlight 21, the second quantum dot film layer 22 and the second optical film layer 23 being above stacked, the liquid crystal display
Panel 10 includes the first quantum dot film layer 11 being arranged from bottom to top, the first optical film layer 12, lower polarizing layer 13, TFT gusts
Column substrate 14, liquid crystal layer 15, color membrane substrates 16 and upper polarizing layer 17.
Specifically, between the film thickness y of the second quantum dot film layer 22 and the film thickness x of the first quantum dot film layer 11
Relationship is as shown by the following formula:
Y=0.264/T2*x2-0.9312x+T1；
Wherein, T1 is the liquid crystal display panel without quantum dot film layer, and the backlight module 20 of arranging in pairs or groups obtains best white picture
The film thickness of second quantum dot film layer 22 described in when face；T2 is the backlight module without quantum dot film layer, the liquid crystal display of arranging in pairs or groups
The film thickness of first quantum dot film layer 11 described in when panel 10 obtains best white picture.
Specifically, the range of the film thickness x of the first quantum dot film layer 11 is 0~50 micron, the second quantum dot film
The range of the film thickness y of layer 22 is 0~100 micron.
Specifically, first optical film layer 12 is prismatic lens；Second optical film layer 23 is dual brightness enhancement
Film.
Specifically, the material of the first quantum dot film layer 11 and the second quantum dot film layer 22 include luminous nucleon with
The inorganic protection shell being wrapped in outside the luminous nucleon, the red light material of the luminous nucleon includes CdSe, Cd2In SeTe and InAs
It is one or more；The green light material of the luminous nucleon includes ZnCdSe2, InP and Cd2One of SSe or a variety of；The nothing
It includes CdS, ZnSe, ZnCdS that machine, which protects shell,2, one of ZnS and ZnO or a variety of.
Specifically, it when light is projected from the blue backlight 21, is inspired after the second quantum dot film layer 22 relatively narrow
The exciting light of halfwidth increases the brightness of exciting light using second optical film layer 23, passes through first quantum later
Point film layer 11 inspires the exciting light of narrower halfwidth, so as to promote the gamut range of display device, improves picture quality.This
It is to have light transfer capability due to quantum dot itself, in the case where being excited by blue light, electron transition occurs, then with fluorescence
The form of radiation completes the compound of electron hole；As typical zero dimensional nanometer materials, the quantum dot amount of all having in all directions
Size within the scope of sub- confinement, therefore direction selection is not present in its fluorescent radiation, it can be with 360 ° of indistinguishably spokes after being stimulated
Fluorescence is penetrated, so as to each visual angle brightness of active balance liquid crystal display.
As shown in figure 3, being the structural schematic diagram of quantum dot liquid crystal display 3rd embodiment of the present invention.Including: liquid
LCD panel 10 and the backlight module 20 below the liquid crystal display panel 10；The backlight module 20 includes under
To the blue backlight 21, the second quantum dot film layer 22 and third optical film layer 24 being above stacked, the liquid crystal display
Panel 10 includes the first quantum dot film layer 11 being arranged from bottom to top, lower polarizing layer 13, tft array substrate 14, liquid crystal layer
15, color membrane substrates 16 and upper polarizing layer 17.
Specifically, between the film thickness y of the second quantum dot film layer 22 and the film thickness x of the first quantum dot film layer 11
Relationship is as shown by the following formula:
Y=0.264/T2*x2-0.9312x+T1；
Wherein, T1 is the liquid crystal display panel without quantum dot film layer, and the backlight module 20 of arranging in pairs or groups obtains best white picture
The film thickness of second quantum dot film layer 22 described in when face；T2 is the backlight module without quantum dot film layer, the liquid crystal display of arranging in pairs or groups
The film thickness of first quantum dot film layer 11 described in when panel 10 obtains best white picture.
Specifically, the range of the film thickness x of the first quantum dot film layer 11 is 0~50 micron, the second quantum dot film
The range of the film thickness y of layer 22 is 0~100 micron.
Specifically, the third optical film layer 24 includes the prismatic lens 12 and reflecting type polarizing being stacked from bottom to top
Brightness enhancement film 23.
Specifically, the material of the first quantum dot film layer 11 and the second quantum dot film layer 22 include luminous nucleon with
The inorganic protection shell being wrapped in outside the luminous nucleon, the red light material of the luminous nucleon includes CdSe, Cd2In SeTe and InAs
It is one or more；The green light material of the luminous nucleon includes ZnCdSe2, InP and Cd2One of SSe or a variety of；The nothing
It includes CdS, ZnSe, ZnCdS that machine, which protects shell,2, one of ZnS and ZnO or a variety of.
Specifically, it when light is projected from the blue backlight 21, is inspired after the second quantum dot film layer 22 relatively narrow
The exciting light of halfwidth increases the brightness of exciting light using the third optical film layer 24, passes through first quantum later
Point film layer 11 inspires the exciting light of narrower halfwidth, so as to promote the gamut range of display device, improves picture quality.This
It is to have light transfer capability due to quantum dot itself, in the case where being excited by blue light, electron transition occurs, then with fluorescence
The form of radiation completes the compound of electron hole；As typical zero dimensional nanometer materials, the quantum dot amount of all having in all directions
Size within the scope of sub- confinement, therefore direction selection is not present in its fluorescent radiation, it can be with 360 ° of indistinguishably spokes after being stimulated
Fluorescence is penetrated, so as to each visual angle brightness of active balance liquid crystal display.
As shown in figure 4, being the structural schematic diagram of quantum dot liquid crystal display fourth embodiment of the present invention.Including: liquid
LCD panel 10 and the backlight module 20 below the liquid crystal display panel 10；The backlight module 20 includes under
To the blue backlight 21, the second quantum dot film layer 22 and third optical film layer 24 being above stacked, the liquid crystal display
Panel 10 includes the tft array substrate 14 being arranged from bottom to top, liquid crystal layer 15, the first quantum dot film layer 11 and color film base
Plate 16；The first quantum dot film layer 11 and the color membrane substrates 16 constitute quantum dot color film substrate structure (QD-CF).
Specifically, between the film thickness y of the second quantum dot film layer 22 and the film thickness x of the first quantum dot film layer 11
Relationship is as shown by the following formula:
Y=0.264/T2*x2-0.9312x+T1；
Wherein, T1 is the liquid crystal display panel without quantum dot film layer, and the backlight module 20 of arranging in pairs or groups obtains best white picture
The film thickness of second quantum dot film layer 22 described in when face；T2 is the backlight module without quantum dot film layer, the liquid crystal display of arranging in pairs or groups
The film thickness of first quantum dot film layer 11 described in when panel 10 obtains best white picture.
Specifically, the range of the film thickness x of the first quantum dot film layer 11 is 0~50 micron, the second quantum dot film
The range of the film thickness y of layer 22 is 0~100 micron.
Specifically, the third optical film layer 24 includes the prismatic lens 12 and reflecting type polarizing being stacked from bottom to top
Brightness enhancement film 23.
Specifically, the material of the first quantum dot film layer 11 and the second quantum dot film layer 22 include luminous nucleon with
The inorganic protection shell being wrapped in outside the luminous nucleon, the red light material of the luminous nucleon includes CdSe, Cd2In SeTe and InAs
It is one or more；The green light material of the luminous nucleon includes ZnCdSe2, InP and Cd2One of SSe or a variety of；The nothing
It includes CdS, ZnSe, ZnCdS that machine, which protects shell,2, one of ZnS and ZnO or a variety of.
Specifically, it when light is projected from the blue backlight 21, is inspired after the second quantum dot film layer 22 relatively narrow
The exciting light of halfwidth increases the brightness of exciting light using the third optical film layer 24, passes through quantum stippling film base later
The first quantum dot film layer 11 on hardened structure (QD-CF) inspires the exciting light of narrower halfwidth, so as to promote display
The gamut range of device improves picture quality.This is because quantum dot itself has light transfer capability, by blue light activated
In the case of, electron transition occurs, the compound of electron hole is then completed in the form of fluorescent radiation；As typical zero-dimension nano
Material, quantum dot all has the size within the scope of quantum confinement in all directions, therefore direction selection is not present in its fluorescent radiation
Property, can be with 360 ° of indistinguishably radiofluorescences, so as to each visual angle brightness of active balance liquid crystal display after being stimulated.
Quantum dot liquid crystal display of the present invention passes through basic frequency spectrum data and collects and simulate, and establishes a kind of blanket
The film thickness relationship simulation model of quantum dot layer on the film thickness and liquid crystal display panel of backlight quantum dot layer: second quantum dot
Relationship between the film thickness y of film layer 22 and the film thickness x of the first quantum dot film layer 11 is as shown by the following formula:
Y=0.264/T2*x2-0.9312x+T1；
This computation model and analogy method are suitable for being generally possible to the quantum dot resin mixed system of film forming.
This quantum dot liquid crystal display has the wider array of visual angle compared with the quantum dot liquid crystal display of existing structure, more
High efficiency.The use that quantum dot film layer in liquid crystal display panel can be greatly lowered in quantum dot film layer is quoted in backlight module
Amount, hence it is evident that improve the brightness of mould group, reduce energy consumption；On the other hand visual angle can then be obviously increased.Therefore, this is a kind of novel high color
Domain, wide viewing angle, high energy efficiency and the display device structure for being suitble to volume production.
The invention has the benefit that quantum dot liquid crystal display provided by the invention, liquid crystal display panel and its under
It is respectively provided with certain thickness quantum dot film layer on the backlight module of side, increases the visual angle of quantum dot liquid crystal display, further
The energy consumption of quantum dot liquid crystal display is reduced, the display effect of quantum dot liquid crystal display is further improved.
In conclusion although the present invention has been disclosed above in the preferred embodiment, but above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention subjects to the scope of the claims.
Claims (10)
1. a kind of quantum dot liquid crystal display characterized by comprising liquid crystal display panel and be located at the LCD display
Backlight module below plate；The liquid crystal display panel contains the first quantum dot film layer, and the backlight module contains the second quantum
Point film layer；For example following public affairs of relationship between the film thickness y of the second quantum dot film layer and the film thickness x of the first quantum dot film layer
Shown in formula:
Y=0.264/T2*x2-0.9312x+T1；
Wherein, T1 is the liquid crystal display panel without quantum dot film layer, and the backlight module of arranging in pairs or groups obtains best white picture when institute
State the film thickness of the second quantum dot film layer；T2 is the backlight module without quantum dot film layer, and the liquid crystal display panel of arranging in pairs or groups obtains
The film thickness of first quantum dot film layer described in when best white picture.
2. quantum dot liquid crystal display according to claim 1, which is characterized in that the film thickness of the first quantum dot film layer
The range of x is 0~50 micron, and the range of the film thickness y of the second quantum dot film layer is 0~100 micron.
3. quantum dot liquid crystal display according to claim 1, which is characterized in that in the quantum dot liquid crystal display,
The backlight module includes blue backlight and the second quantum dot film layer, and the liquid crystal display panel includes setting from bottom to top
The first quantum dot film layer for setting, the first optical film layer, lower polarizing layer, tft array substrate, liquid crystal layer, color membrane substrates and
Upper polarizing layer.
4. quantum dot liquid crystal display according to claim 1, which is characterized in that in the quantum dot liquid crystal display,
The backlight module includes the blue backlight being stacked from bottom to top, the second quantum dot film layer and the second optical film
Layer, the liquid crystal display panel includes the first quantum dot film layer being arranged from bottom to top, the first optical film layer, lower polarisation
Layer, tft array substrate, liquid crystal layer, color membrane substrates and upper polarizing layer.
5. quantum dot liquid crystal display according to claim 1, which is characterized in that in the quantum dot liquid crystal display,
The backlight module includes the blue backlight being stacked from bottom to top, the second quantum dot film layer and third optical film
Layer, the liquid crystal display panel include the first quantum dot film layer being arranged from bottom to top, lower polarizing layer, tft array substrate,
Liquid crystal layer, color membrane substrates and upper polarizing layer.
6. quantum dot liquid crystal display according to claim 1, which is characterized in that in the quantum dot liquid crystal display,
The backlight module includes the blue backlight being stacked from bottom to top, the second quantum dot film layer and third optical film
Layer, the liquid crystal display panel include the tft array substrate being arranged from bottom to top, liquid crystal layer, the first quantum dot film layer with
And color membrane substrates.
7. quantum dot liquid crystal display according to claim 3 or 4, which is characterized in that first optical film layer is rib
Eyeglass.
8. quantum dot liquid crystal display according to claim 4, which is characterized in that second optical film layer is reflective
Brightness enhancement film.
9. quantum dot liquid crystal display according to claim 5 or 6, which is characterized in that the third optical film layer includes
The prismatic lens and dual brightness enhancement film being stacked from bottom to top.
10. quantum dot liquid crystal display according to claim 1, which is characterized in that the first quantum dot film layer and
The material of the second quantum dot film layer includes luminous nucleon and the inorganic protection shell that is wrapped in outside the luminous nucleon, described to shine
The red light material of core includes CdSe, Cd2One of SeTe and InAs or a variety of；The green light material of the luminous nucleon includes
ZnCdSe2, InP and Cd2One of SSe or a variety of；The inorganic protection shell includes CdS, ZnSe, ZnCdS2, ZnS and ZnO
One of or it is a variety of.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910393239.2A CN110058449B (en) | 2019-05-13 | 2019-05-13 | Quantum dot liquid crystal display |
| PCT/CN2019/106160 WO2020228210A1 (en) | 2019-05-13 | 2019-09-17 | Quantum dot liquid crystal display |
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|---|---|---|---|
| CN201910393239.2A CN110058449B (en) | 2019-05-13 | 2019-05-13 | Quantum dot liquid crystal display |
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| CN110058449B CN110058449B (en) | 2020-11-24 |
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Cited By (1)
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|---|---|---|---|---|
| WO2020228210A1 (en) * | 2019-05-13 | 2020-11-19 | 深圳市华星光电技术有限公司 | Quantum dot liquid crystal display |
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| Publication number | Publication date |
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| CN110058449B (en) | 2020-11-24 |
| WO2020228210A1 (en) | 2020-11-19 |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |