CN106707614A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
- Publication number
- CN106707614A CN106707614A CN201510780368.9A CN201510780368A CN106707614A CN 106707614 A CN106707614 A CN 106707614A CN 201510780368 A CN201510780368 A CN 201510780368A CN 106707614 A CN106707614 A CN 106707614A
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- Prior art keywords
- light
- backlight module
- encapsulated layer
- point material
- shielding part
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Classifications
-
- 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
- G02F1/1336—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
- G02F1/133606—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
Abstract
The invention relates to the technical field of display, particularly relates to a backlight module and a display device, and is used to solve the problem of bluish white light on the edge of a display existing in the prior art. The provided backlight module comprises a light emitting module, an optical membrane group, the optical membrane group is arranged on the light emitting direction of the light emitting module; the provided quantum dot material encapsulation layer is arranged on the place between the optical membrane group and the light emitting module; wherein a light shading part is arranged on the edge of the quantum dot material encapsulation layer.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of backlight module and display device.
Background technology
Colour gamut is the index of the chromatic rendition ability that a description display can reach.Current industry
Interior use blue light excitation quantum point material produces the backlighting scheme of white light, and it can be reached
100%NTSC (National Television Standards Committee, referred to as (U.S.) country
Television standard committee) colour gamut.
In the prior art, as shown in figure 1, the coloured light that turns blue diode (Light Emitting Diode,
Abbreviation LED) on the irradiation quantum dot material package of chip 10 layer 20, can be with excitation quantum point material
Various sizes of quantum dot discharges purity feux rouges 102 and green glow 103 high in material encapsulated layer, red
Light 102 and green glow 103 can with the mixed light of remaining blue light 101 after, obtain the white light of high brightness
(not shown).
In order to the area source of a high brightness, high uniformity, one are provided for display screen as far as possible
As uniform on backboard multiple blue LED dies can be set.As shown in Fig. 2 being existing skill
The blue LED die set on art dorsulum is irradiated to the structural representation of quanta point material encapsulated layer
Figure.Wherein, the white light that zone line is formed a, part is the blue led for being located at zone line
The excitation quantum point material package of chip 201 layer 202 in various sizes of quantum dot discharge feux rouges,
What green glow and the blue light mixed light transmitted through quanta point material encapsulated layer 202 were formed；Another part is
Positioned at other excitation quantum point material packages of blue LED die 201 layer in edge region
Various sizes of quantum dot discharges feux rouges, green reflection to zone line and zone line in 202
Transmitted through quanta point material encapsulated layer 202 blue light mixed light formed.As shown in Fig. 2 central
Between in region redgreenblue light proportioning to be formed during white mixed light, in LED luminescence chip power
It is saturating from edge region under the quanta point material ratio same case of quantum dot encapsulated layer 202
The blue light total amount for penetrating quantum dot encapsulated layer 202 is also identical with zone line, however, surrounding
Edge region only receives the backward feux rouges of a reflection part and green glow near zone line side,
Being relatively less than zone line can receive the backward feux rouges of surrounding reflection and green glow, therefore, edge
Blue light ingredient is relatively higher during white light proportioning is formed in region, the white light that edge region is formed
Can be partially blue.
The content of the invention
Embodiments of the invention provide a kind of backlight module and display device, at least solve existing skill
The partially blue problem of the white light at display edge in art.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
The embodiment of the present invention provides a kind of backlight module, including：
Luminescence component；
Optical diaphragm group, the optical diaphragm group is arranged on the light direction of the luminescence component；
Quanta point material encapsulated layer, the quanta point material encapsulated layer is arranged on the blooming piece
Between group and the luminescence component；
Wherein, the edge between the quanta point material encapsulated layer and the luminescence component is provided with
Light shielding part.
It is preferred that the quanta point material encapsulated layer is rectangle or class rectangle, the light shielding part is
Class square ring-type or class rectangle ring-type.
It is preferred that the light shielding part is black mylar film, the black mylar film is attached to described
On quanta point material encapsulated layer.
It is preferred that the light shielding part is black pattern, the black pattern passes through silk-screen printing side
Method is printed on the quanta point material encapsulated layer.
It is preferred that the backlight module also includes：Backboard；
The luminescence component includes：Spot light；The spot light is arranged on the bottom surface of backboard；
The optical diaphragm group is arranged on the light direction of the spot light.
It is preferred that the luminescence component includes：Lamp bar and light guide plate；The lamp bar is arranged on to be led
The incident side of tabula rasa；
The optical diaphragm group is arranged on the light direction of the light guide plate.
The embodiment of the present invention also provides a kind of display device, including：Display panel；
Backlight module described in above-described embodiment, the display panel is arranged on the backlight module
Light direction on.
It is preferred that the display panel includes：The rim area of visible area and the encirclement visible area；
Light shielding part in the backlight module is located at the just right with the rim area of the backlight module
Region within.
In the embodiment of the present invention, backlight module mainly includes：It is arranged on the light extraction side of luminescence component
Upward optical diaphragm group, is arranged on the quantum between the optical diaphragm group and the luminescence component
Point material package layer；Wherein, between the quanta point material encapsulated layer and the luminescence component
Edge is provided with light shielding part.In actual applications, after the receivable reflection in edge region
To lack relative to the backward feux rouges of reflection and green glow that zone line is received to feux rouges and green glow, but four
Circumferential edges region with zone line transmit quanta point material encapsulated layer blue light total amount be but as
When, and set quantum dot material package layer and luminescence component between edge light shielding part, can inhale
A part of blue light that edge region sends from blue LED die is received, to reduce transmission
The blue light total amount of quantum dot encapsulated layer is crossed, the blue light in reduction fringe region is in white light mixed light
Ratio, so as to reached unanimity with ratio of the blue light in white light mixed light in zone line, so that
Solve the problems, such as that the white light of display fringe region in the prior art is partially blue.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below
The accompanying drawing to be used needed for embodiment or description of the prior art will be briefly described, show and
Easy insight, drawings in the following description are only some embodiments of the present invention, for this area
For those of ordinary skill, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is blue light illumination quanta point material encapsulation layer structure schematic diagram in the prior art；
Fig. 2 is blue-light LED chip irradiation quantum dot material package Rotating fields signal in the prior art
Figure；
Fig. 3 is a kind of back light module unit structure schematic diagram provided in an embodiment of the present invention；
Fig. 4 a are that quanta point material encapsulated layer edge provided in an embodiment of the present invention sets light shielding part
One of upward view；
Fig. 4 b are that quanta point material encapsulated layer edge provided in an embodiment of the present invention sets light shielding part
The two of upward view；
Fig. 4 c be Fig. 4 a or Fig. 4 b in AA to generalized section；
Fig. 5 is a kind of back light module unit structure schematic diagram provided in an embodiment of the present invention；
Fig. 6 is another back light module unit structure schematic diagram provided in an embodiment of the present invention；
Fig. 7 is a kind of display device structure schematic diagram provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, to the technical side in the embodiment of the present invention
Case is clearly and completely described, it is clear that described embodiment is only the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, this area is general
The every other embodiment that logical technical staff is obtained under the premise of creative work is not made,
Belong to the scope of protection of the invention.
Backlight module provided in an embodiment of the present invention and display device, in quanta point material encapsulated layer
Edge near luminescence component side is provided with light shielding part, and light shielding part can absorb edge area
The blue light that domain sends from blue LED die, reduces fringe region blue light in white light mixed light
Ratio so that in the ratio and zone line of blue light in fringe region in white light mixed light
Ratio of the blue light in white light mixed light reaches unanimity, so as to solve display side in the prior art
The partially blue problem of the white light in edge region.
In embodiments of the present invention, the technical term being related to is as follows：
1st, quantum dot：A kind of compound group by II-VI group or iii-v element into
Nano particle.The quantum size effect of quantum dot causes that the photoelectric property of semiconductor-quantum-point is produced
Huge change, when the Bohr radius when institute of the size less than exciton of semiconductor-quantum-point particle
The quantum size effect of generation changes the level structure of semi-conducting material, has been allowed to one continuously
Band structure be changed into the discrete energy level structure with molecular characterization.Using this phenomenon
The semiconductor-quantum-point of different-grain diameter is prepared in same middle reaction, the light of different frequency is produced
Transmitting, such that it is able to easily regulate and control out manifold color-emitting.
2nd, backlight：It is thin film transistor liquid crystal display screen (Thin Film Transistor Liquid
Crystal Display, abbreviation TFT-LCD) light source that brightness uniformity is distributed in a face is provided.
3rd, silk-screen printing：Belong to porous printing, the principle of porous printing is:Printing plate printing when,
By certain pressure make ink by hole version eyelet be transferred on stock, formed image or
Word, wherein, printing plate refers to that produce can be by ink in the version base of paper membrane version or other editions
Eyelet.
4th, mylar film：Generally refer to by cross cutting, by drawing or specified stamp is into sheet material.
Mylar film has dimensionally stable, straight and excellent anti-tear tensile strength, heat-resisting cold-resistant, moisture resistance resistance to
It is water, resistant to chemical etching, and with superpower insulating properties, it is usually used in thin film switch or electronics
The surface protection of electric product, or minor insulation.
Fig. 3 illustrates a kind of back light module unit structure schematic diagram provided in an embodiment of the present invention.
The backlight module can be as the area source of display.
Referring to Fig. 3, a kind of backlight module provided in an embodiment of the present invention mainly includes：Luminous group
Part 301, optical diaphragm group 302 and quanta point material encapsulated layer 303.Wherein, optical diaphragm group
302 are arranged on the light direction of luminescence component 301, and quanta point material encapsulated layer 303 is arranged on
Between optical diaphragm group 302 and luminescence component 301.
It should be noted that quanta point material encapsulated layer can be that quanta point material is encapsulated in into light
Diaphragm is learned to form quantum dot diaphragm, simply quantum dot can be packaged together to be formed,
Can be that quantum dot is directly encapsulated in side shape of the diffuser plate near the light direction of luminescence component
Into quanta point material encapsulated layer, quantum dot directly can also be encapsulated in light guide plate near luminous
The quanta point material encapsulated layer that the side of the light direction of component is formed.In embodiments of the present invention,
Concrete form to quanta point material encapsulated layer is not limited.
In embodiments of the present invention, in order to avoid the white mixed light of the formation of edge is partially blue,
Close edge between quanta point material encapsulated layer and luminescence component is provided with light shielding part.Need
Illustrate, can be the edge near luminescence component side on quanta point material encapsulated layer
Other are set between upper setting light shielding part, or quanta point material encapsulated layer and luminescence component
The light shielding part is set on the edge of optical module, such as:Quanta point material encapsulated layer is to be arranged on
Between diffuser plate and blooming piece during quantum dot diaphragm, the light shielding part can set quantum dot diaphragm
Edge on diffuser plate between optical module.So-called quanta point material encapsulated layer is near hair
The edge of optical assembly side is provided with light shielding part：In the whole of quanta point material encapsulated layer
Edge is provided with light shielding part, or in the part at the edge of quanta point material encapsulated layer
It is provided with light shielding part.Example, if quanta point material encapsulated layer is polygon, for example can be with
Including N (N be more than or equal to 3) bar side, then setting light shielding part at the edge of the encapsulated layer can be with
It is that light shielding part is set on the marginal portion corresponding to a side of the encapsulated layer, can also be
Set on marginal portion corresponding to M (M is more than 1 and less than N) bar side of the encapsulated layer and hidden
Light portion, can also be in the marginal portion (i.e. whole edge) corresponding to whole sides of the encapsulated layer
Upper setting light shielding part.
Example, shading is set near the edge of luminescence component side in quanta point material encapsulated layer
Portion, the then feux rouges and green glow that can be received in edge region as seen from Figure 2 is main by two
Divide and constitute, a part is that the excitation quantum point material of blue chip 201 in edge region is sealed
Fill the part of the fringe region of layer 202 and send, another part is by the blue light core of zone line
The excitation quantum point material package of the piece 201 layer part retroreflection feux rouges of 202 zone lines and green
Light reflexes to the edge region.Analysis learns that surrounding is partially blue main reason is that transmission
A part of blue light of quanta point material encapsulated layer and the retroreflection feux rouges from zone line and green
In the mixed white light ratio of light, a part of blue light ratio of the transmission is higher to cause blueness partially, in the present invention,
Light shielding part is set near the edge of luminescence component side in quanta point material encapsulated layer, can be reduced
Fringe region LED blue luminescence chips send blue light total amount, so, transmission quanta point material envelope
The inevitable relative reduction of dress layer blue light total amount, and come from zone line retroreflection feux rouges and green glow not
In the case of change so that the transmissive portion blue light with should retroreflection feux rouges from zone line with
Green glow colour mixture more they tends to white light.What is be explained further is, although light shielding part reduction in fringe region
LED blue luminescence chips send blue light total amount, so that transmitted through quanta point material encapsulated layer
Blue light ratio relative reduction, and it is received from the feux rouges and green glow ratio of the retroreflection of zone line
Relative increase, accordingly, it is possible to resolve the partially blue problem of above-mentioned surrounding.
However, in embodiments of the present invention, backlight module mainly includes：It is arranged on luminescence component
Optical diaphragm group 302 on 301 light direction, is arranged on the optical diaphragm group 302 and described
Quanta point material encapsulated layer 303 between luminescence component 301.Wherein, the quanta point material envelope
Dress layer 303 is provided with light shielding part near the edge of the side of luminescence component 301 (not shown in Fig. 3).
Because the light shielding part near luminescence component side absorbs the indigo plant sent from blue LED die
Light, reduces ratio of the fringe region blue light in white light mixed light, so as to solve prior art
The partially blue problem of the middle white light for showing its edge.
For example, in the case where the quanta point material encapsulated layer of backlight module does not set light shielding part,
Assuming that the blue light that edge region receives (unit can be luminous intensity unit, therefore the example for 100
Only for explanation magnitude relationship in son, therefore do not add unit), here it is considered that all blue lights are equal
It is the blue light of quanta point material encapsulated layer fringe region transmission；Edge region receive it is red,
Green glow is 200, and red, the green glow that wherein quanta point material encapsulated layer fringe region is inspired are 160,
It is 40 to reflex to the red of edge region, green glow.It can be seen that, ratio of the blue light in white light mixed light
Example is 1/3.
Based on above-mentioned it is assumed that the quanta point material encapsulated layer in above-mentioned backlight module is replaced by this hair
The quanta point material encapsulated layer of light shielding part is provided with bright embodiment, by quanta point material encapsulated layer side
The blue light of edge region transmission reduces 30%, then the blue light that now edge region receives is 70；
Red, the green glow inspired with quanta point material encapsulated layer fringe region all reduce 50%, then now
The blue light that edge region receives is 50；Edge region receive red, green glow be still
120200, red, the green glow that wherein quanta point material encapsulated layer fringe region is inspired are 80, instead
It is 40 to be mapped to the red of edge region, green glow, can be calculated, and now blue light is in white light mixed light
In ratio be 57/1720.Therefore, the scheme in the embodiment of the present invention, can reduce surrounding
Ratio of the edge region blue light in white light mixed light.
In embodiments of the present invention, the blooming piece in optical diaphragm group include brightening film sheet and/
Or colorized optical filtering diaphragm.The light of diverging, is converged in one by the effect that brightening film sheet passes through optically focused
In smaller scope, to lift the light in the range of this.Conventional brightening film sheet is prismatic lens,
Contain the prism structure as eaves in surface.
In embodiments of the present invention, quanta point material encapsulated layer is rectangle or class rectangle.Illustratively,
Light shielding part can be arranged on one side of quanta point material encapsulated layer；Illustratively, light shielding part can set
Put in the polygon of quanta point material encapsulated layer.Preferably, light shielding part can be arranged on quantum dot material
Expect four sides of encapsulated layer, now light shielding part is rectangular ring or class rectangle ring-type.The present invention is implemented
In example, to the several of the encapsulated layer occupied by the light shielding part that is arranged on quanta point material encapsulated layer
Specific restriction is not done in side.
Backlight module provided in an embodiment of the present invention is illustrated below in conjunction with accompanying drawing 4a-4c.Fig. 4 a,
Fig. 4 b illustrate the edge in quanta point material encapsulated layer provided in an embodiment of the present invention and set
There is the structure upward view of light shielding part, Fig. 4 c are the quanta point material encapsulation shown in Fig. 4 a or Fig. 4 b
The A-A profiles of layer.
As shown in fig. 4 a, the example of quanta point material encapsulated layer 401 is rectangle；As shown in Figure 4 b,
The example of quanta point material encapsulated layer 401 is class rectangle, and the class rectangle is the rectangle with arc angle,
Light shielding part 402 is arranged on the edge of the quanta point material encapsulated layer 401.It should be noted that
In Fig. 4 a, Fig. 4 b, preferably quanta point material encapsulated layer is near the luminescence component side
All edges are all disposed within light shielding part, and in actual applications, light shielding part can the amount of being positioned only at
On one edge of son point material package layer, it is also possible to be arranged on many of quanta point material encapsulated layer
On individual edge, it is preferred that light shielding part can also be arranged on four sides on quanta point material encapsulated layer,
Now light shielding part is rectangular ring or class rectangle ring-type.Wherein, rectangular ring refers to：Interior outside
Boundary is the ring-type of rectangle.Class rectangle ring-type refers to：One of border is square in inner and outer boundary
Shape, another border are class rectangle；Or, inner and outer boundary is class rectangle.It is of the invention real
In applying example, the several sides to setting the diaphragm occupied by the light shielding part on quantum dot material package layer
Specific restriction is not done.
As shown in figures 4 a and 4b, quanta point material encapsulated layer 401 is arranged near the hair
The light shielding part 402 of the lateral edges of optical assembly one, can come from blue LED die with absorption edge region
The blue light for sending, reduces ratio of the fringe region blue light in white light mixed light, so as to solve
The partially blue problem of the white light of display fringe region in the prior art.
In the embodiment of the present invention, the light extraction of luminescence component is arranged on due to quanta point material encapsulated layer
On direction, and between optical diaphragm group and luminescence component.In actual applications, in quantum
Point material package layer sets light shielding part near the edge of luminescence component side, and light shielding part on the one hand can
With the blue light that absorption edge region blue LED die sends, fringe region white light mixed light is reduced
The ratio of middle blue light；On the other hand, in the quanta point material encapsulated layer of fringe region not
Under the exciting of the blue light that can be still blocked in the portion of not being blocked with the quantum dot of size, send feux rouges and
Green glow, and the feux rouges that inspires and green glow can project normally from quanta point material encapsulated layer,
So as to for above-described embodiment, can both increase in fringe region white light mixed light feux rouges and
Green glow proportion, also reduces blue light proportion in fringe region white light mixed light；Therefore can be with
Solve the problems, such as to exist in the prior art and show that its fringe region white light mixed light is partially blue.
In embodiments of the present invention, in order to improve light shielding part to fringe region not by abundant laser
The absorption efficiency of blue light, it is preferable that the color of light shielding part can be black.Illustratively, shading
Portion is black mylar film.Again illustratively, light shielding part is black pattern.
In embodiments of the present invention, when light shielding part is black mylar film, it is preferable that Ke Yitong
The method for attaching is crossed, black mylar film is attached to the edge of quanta point material encapsulated layer.Equivalent
When being shaped as class rectangle of son point material package layer, can be attached to quantum dot by black mylar film
On material package layer, meanwhile, the black mylar film that quanta point material encapsulated layer is attached can only exist
One side of quanta point material encapsulated layer, can also may be used on multiple sides of quanta point material encapsulated layer
With in class rectangle ring-type.
In embodiments of the present invention, when light shielding part is black pattern, it is preferable that can pass through
Method for printing screen, black light shielding part is set at the edge of quanta point material encapsulated layer.Work as quantum
When being shaped as class rectangle of point material package layer, can print black on quanta point material encapsulated layer
Color light shielding part, meanwhile, the black light shielding part printed on quanta point material encapsulated layer can only in amount
One side of son point material package layer, can be on multiple sides of quanta point material encapsulated layer, it is also possible to
In class rectangle ring-type.
In embodiments of the present invention, the black shading that the edge on quanta point material encapsulated layer is set
Portion can inhale the blue light of fringe region, ratio of the blue light in white light mixed light be reduced, so as to solve
Determine the partially blue problem of white light of display fringe region in the prior art.
In actual applications, the frame of display can include various situations, such as, display
Frame can be narrow frame, and display frame can be Wide frame, and display frame can also be
Irregular frame.
I.e. in actual applications, when the edge of quantum dot material package layer is provided with light shielding part,
The width of the light shielding part at encapsulated layer edge can be adjusted according to the width of the frame of display.
Illustratively, if the frame of display is narrow frame, the edge of quanta point material encapsulated layer is set
There is the width of light shielding part narrow；Illustratively, if the frame of display is Wide frame, quantum
The width that the edge of point material package layer is provided with light shielding part is relatively wide；Again illustratively, if display
Device frame has that upper and lower side frame is wide, and left and right side frame is narrow, while needing in quanta point material encapsulated layer
All edges light shielding part is all set, then the encapsulated layer lower edges set light shielding part width
Degree can be more than the width of the light shielding part that left and right edges are set.In the embodiment of the present invention, to quantum dot
The width of the light shielding part that the edge of material package layer is set does not do specific restriction.
As shown in figure 5, be a kind of backlight module provided in an embodiment of the present invention, including backboard 501,
Luminescence component 502 and optical diaphragm group 503.Wherein, luminescence component 502 includes spot light (figure
Not shown in), the spot light is arranged on the bottom surface of backboard 501, and optical diaphragm group 503 sets
Put on the light direction of spot light 502-1.
As shown in fig. 6, being another backlight module provided in an embodiment of the present invention, including light
Component 601 and optical model sheet group 602.Wherein, luminescence component 601 includes lamp bar 601-1 and leads
Tabula rasa 601-2, lamp bar 601-1 is arranged on the incident side of light guide plate 601-2, optical diaphragm group
602 are arranged on the light direction of light guide plate 601-2.
As shown in fig. 7, being a kind of display device provided in an embodiment of the present invention, including display surface
Plate 701, backlight module 702.Wherein, backlight module 702 is offer in the embodiment of the present invention
Any one backlight module, display panel 701 is arranged on the light direction of backlight module 702.
Further, display panel provided in an embodiment of the present invention 701 includes：Visible area and bag
Enclose the rim area of the visible area.In actual applications, on the one hand, in order to avoid quantum dot material
The blue light that material encapsulated layer edge is not excited fully escapes into extraneous, it is necessary to light in backlight module
The edge for learning any one diaphragm in diaphragm group and quanta point material encapsulated layer sets light shielding part；Separately
On the one hand, because display panel is located on the light direction of backlight module, display panel includes can
Vision area and the rim area for surrounding the visible area, the visible area of display panel is light-permeable area, then
Seeking the light shielding part for being arranged on any one diaphragm edge cannot absorb the light of visible area.Preferably,
Light shielding part in backlight module be located at the backlight module with the rim area just to region within.
In the embodiment of the present invention, backlight module mainly includes：It is arranged on the light extraction side of luminescence component
Upward optical diaphragm group, is arranged on the quantum between the optical diaphragm group and the luminescence component
Point material package layer；Wherein, the quanta point material encapsulated layer is near the luminescence component side
Edge be provided with light shielding part.In actual applications, when the receivable reflection in edge region
Feux rouges, green glow will lack relative to the reflection feux rouges, green glow that zone line is received, but edge
The blue light and zone line that region reception blue LED die sends receive blue LED die and send
Blue light as many when, and set quantum dot material package layer near luminescence component side edge
Light shielding part, the blue light that edge region sends from blue LED die can be absorbed, make
The blue light in ratio and zone line of the blue light in fringe region in white light mixed light is obtained in white light
Ratio in mixed light is the same, so as to the white light for solving display fringe region in the prior art is inclined
Blue problem.
The preferred embodiment of the application is the foregoing is only, the application is not limited to,
All any modification, equivalent substitution and improvements within spirit herein and principle, made etc.,
Should be included within the protection domain of the application.
Although having been described for the preferred embodiment of the application, those skilled in the art are once
Basic creative concept is known, then other change and modification can be made to these embodiments.
So, appended claims are intended to be construed to include preferred embodiment and fall into the application scope
Have altered and change.
Obviously, those skilled in the art the application can be carried out it is various change and modification without
Depart from spirit and scope.So, if these modifications of the application and modification belong to
Within the scope of the application claim and its equivalent technologies, then the application is also intended to comprising these
Including change and modification.
Claims (8)
1. a kind of backlight module, it is characterised in that including：
Luminescence component；
Optical diaphragm group, the optical diaphragm group is arranged on the light direction of the luminescence component；
Quanta point material encapsulated layer, the quanta point material encapsulated layer is arranged on the blooming piece
Between group and the luminescence component；
Wherein, set on the edge between the quanta point material encapsulated layer and the luminescence component
There is light shielding part.
2. backlight module as claimed in claim 1, it is characterised in that the quanta point material
Encapsulated layer is rectangle or class rectangle, and the light shielding part is rectangular ring or class rectangle ring-type.
3. the backlight module as described in claim 1~2 any one, it is characterised in that
The light shielding part is black mylar film, and the black mylar film is attached to the quantum dot material
On material encapsulated layer.
4. the backlight module as described in claim 1~2 any one, it is characterised in that
The light shielding part is black pattern, and the black pattern is printed on by method for printing screen
On the quanta point material encapsulated layer.
5. backlight module as claimed in claim 1, it is characterised in that the backlight module is also
Including：Backboard；
The luminescence component includes：Spot light；The spot light is arranged on the bottom surface of backboard；
The optical diaphragm group is arranged on the light direction of the spot light.
6. backlight module as claimed in claim 1, it is characterised in that the luminescence component bag
Include：Lamp bar and light guide plate；The lamp bar is arranged on the incident side of the light guide plate；
The optical diaphragm group is arranged on the light direction of the light guide plate.
7. a kind of display device, it is characterised in that
Display panel；
Backlight module as described in any one of claim 1~6, the display panel is arranged on institute
State on the light direction of backlight module.
8. display device as claimed in claim 7, it is characterised in that the display panel bag
Include：The rim area of visible area and the encirclement visible area；
Light shielding part in the backlight module is located at the just right with the rim area of the backlight module
Region within.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780368.9A CN106707614A (en) | 2015-11-13 | 2015-11-13 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510780368.9A CN106707614A (en) | 2015-11-13 | 2015-11-13 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106707614A true CN106707614A (en) | 2017-05-24 |
Family
ID=58931612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510780368.9A Pending CN106707614A (en) | 2015-11-13 | 2015-11-13 | Backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106707614A (en) |
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| CN107420804A (en) * | 2017-09-07 | 2017-12-01 | 合肥惠科金扬科技有限公司 | Quantum dot backlight module and display device |
| CN109581738A (en) * | 2017-09-29 | 2019-04-05 | 夏普株式会社 | Lighting device and display device |
| US10613389B2 (en) | 2018-03-13 | 2020-04-07 | Apple Inc. | Light-emitting diodes in displays with direct-lit backlight units |
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Application publication date: 20170524 |