CN105445994B - A kind of light source module, backlight module and display device - Google Patents
A kind of light source module, backlight module and display device Download PDFInfo
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- CN105445994B CN105445994B CN201510939577.3A CN201510939577A CN105445994B CN 105445994 B CN105445994 B CN 105445994B CN 201510939577 A CN201510939577 A CN 201510939577A CN 105445994 B CN105445994 B CN 105445994B
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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
- G02F1/133602—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
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention discloses a kind of light source module, backlight module and display device, is related to field of display technology.For solve in the prior art quantum dot pipe fever concentrate, the service life of quantum dot shorter problem and invent.Light source module provided in an embodiment of the present invention, comprising: substrate；Light emitting diode, the light emitting diode are set on the substrate, and the light emitting diode shines upwards；Light guide plate, the light guide plate are located at the top of the substrate, offer through-hole on the light guide plate, the through-hole is opposite with the light emitting diode；Quantum dot layer；Turn light rays part, the turn light rays part are set on the light direction of the light emitting diode, and the light for issuing the light emitting diode reflects and diffuses to inner wall one week of the hollow pipe column.Light source module of the present invention can be used for liquid crystal display.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of light source modules, backlight module and display device.
Background technique
LED (Light Emitting Diode, light emitting diode) is to be applied to LCD (Liquid Crystal at present
Display, liquid crystal display) light source module on one of principal light source, not according to position of the LED in light source module
Together, light source module can be divided into side entering type light source module and directly-down light source module.
It is exemplary, as shown in Figure 1 be side entering type light source module cross section structure schematic diagram, comprising: substrate 01, LED 02,
Quantum dot pipe 03, quantum dot pipe holder 04 and light guide plate 05.Wherein, LED 02 is set on substrate 01, and quantum dot pipe 03 is measured
Son point pipe holder 04 is supported on the light direction of LED 02, quanta point material is packaged in quantum dot pipe 03, LED 02 is issued
Light can enter excitation quanta point material in quantum dot pipe 03 and generate white light, the white light of generation may pass through the side wall of light guide plate 05 into
Entering in light guide plate 05, light guide plate 05 can will enter its internal light and uniformly diffuse to each region, to realize quick light mixing, and
It is uniformly projected by the upper surface of light guide plate 05, thus provides area source to display device.Due to compared to traditional fluorescent powder, amount
Son point material has unique photoelectric characteristic, can issue the light of pure high quality, so that display device is showed and more go out
The imaged color of color, therefore can realize that high colour gamut is shown using the display device of this light source module.
But since LED 02 is opposite with a side wall of quantum dot pipe 03,03 distance LED 02 of quantum dot pipe is relatively close,
The light that LED 02 is issued concentrates the quanta point material in excitation quantum dot pipe 03, causes the optical energy density collection of quantum dot pipe 03
In, the heat that the quanta point material excitation in quantum dot pipe 03 generates is more, causes quanta point material temperature liter in excitation process
Height causes a large amount of quanta point materials to fail, has seriously affected the launching efficiency of quantum dot pipe, increased the failure of quanta point material
Probability, so as to shorten the service life of quanta point material.
Summary of the invention
The embodiment of the present invention provides a kind of light source module, backlight module and display device, can disperse light emitting diode
The energy to emit beam avoids quantum dot pipe from concentrating fever, guarantees that light to the launching efficiency of quantum dot, reduces quanta point material
Failure probability, to extend the service life of quanta point material.
In order to achieve the above objectives, the embodiment provides a kind of light source modules, are used for backlight module, comprising: base
Plate；Light emitting diode, the light emitting diode are set on the substrate, and the light emitting diode shines upwards；Light guide plate, institute
The top that light guide plate is located at the substrate is stated, through-hole, the through-hole and the light emitting diode phase are offered on the light guide plate
It is right；Quantum dot layer, the quantum dot layer are arranged for inner wall one week along the through-hole, and the quantum dot layer includes quantum dot material
Material, and the quanta point material is packaged in hollow pipe column, the hollow pipe column is made by transparent material, the hollow pipe column
Outer wall one week opposite with the inner wall of the through-hole；Turn light rays part, the turn light rays part are set to the light emitting diode
On light direction, the light for issuing the light emitting diode reflects and diffuses to inner wall one week of the hollow pipe column.
Preferably, the turn light rays part includes support plate and the protrusion for being set to the support plate lower surface, the branch
The through hole of the light guide plate upper surface is arranged in fagging, and the protrusion protrudes into the hollow area that the hollow pipe column surrounds
Interior, the surface of the protrusion by the light that the light emitting diode issues for reflecting and diffusing to the inner wall of the hollow pipe column
One week.
Preferably, the shape of the protrusion is cone or hemispherical.
Preferably, the turn light rays part is made by transparent material, and the lower surface of the turn light rays part and the hair
The opposite region of optical diode is equipped with reflective particle or reflection site, and the upper surface of the turn light rays part shines with described
The opposite part of diode is equipped with fluorescent powder or quanta point material.
Preferably, the lower surface of the support plate is equipped with annular slot, the hollow pipe column in one week around the protrusion
Upper end can be connected in the annular slot.
Preferably, pad is equipped with soft material between the hollow pipe column and the substrate.
Preferably, the upper/lower terminal of the quantum dot layer stretches out the through-hole setting.
On the other hand, the embodiments of the present invention also provide a kind of backlight module, the backlight module includes at least one
Light source module as described in the above technical scheme.
The third aspect, the embodiments of the present invention also provide a kind of display device, the display device includes liquid crystal display
Backlight module described in panel and above-mentioned technical proposal, the setting of liquid crystal display panel described in the backlight module face.
A kind of light source module, backlight module and display device provided in an embodiment of the present invention, turn light rays part are set to hair
On the light direction of optical diode, this turn light rays part by the light that light emitting diode issues for reflecting and diffusing to hollow pipe
The inner wall of column one week, the light portion into open tubular column participate in the quanta point material encapsulated in excitation hollow pipe column, and excitation generates
Light and be directly mixed to form white light transmitted through the light of hollow pipe column, the incidence surface of the white light being mixed to form finally through the light guide plate into
Enter inside light guide plate.Thus the light that light emitting diode issues is reflected and is dispersed to the inner wall of hollow pipe column using turn light rays part
One week, and the inner wall for passing through hollow pipe column enters in quantum dot layer, so that the power dissipation that light emitting diode issues light extremely be measured
In annular region locating for son point layer, the light that middle light emitting diode issues compared with the prior art is concentrated in excitation quantum pipe
Quanta point material, the light source module of the embodiment of the present invention are changed the light reflection that light emitting diode issues by turn light rays part
It after changing direction, is dispersed in annular region locating for quantum dot layer, reduces the corresponding optical energy density of quantum dot layer, effectively divide
The heat that the excitation of quanta point material in quantum dot layer excitation process generates has been dissipated, has avoided in quantum dot layer quanta point material because sharp
The excessively high caused quanta point material failure of temperature is sent out, to extend the service life of quanta point material.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of prior art side entering type light source module；
Fig. 2 is one of the structural schematic diagram of light source module of the embodiment of the present invention；
Fig. 3 is the second structural representation of light source module of the embodiment of the present invention；
Fig. 4 is one of the propagation path schematic diagram of light in light source module of the embodiment of the present invention；
Fig. 5 is two of the propagation path schematic diagram of light in light source module of the embodiment of the present invention；
Fig. 6 is the structural schematic diagram of backlight module of the embodiment of the present invention；
Fig. 7 is the arrangement architecture schematic diagram of light source module in backlight module of the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of display device of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.?
In description of the invention, unless otherwise indicated, the meaning of " plurality " is two or more.
Display device includes display panel and the backlight module that is oppositely arranged with display panel, and wherein backlight module includes
Backboard, light source module and optical diaphragm group etc., dorsulum are used to support light source module, and optical diaphragm group is for optimizing light source die
The light that block issues, light source module are the core component of backlight module, for providing uniform planar light source, light source to backlight module
Module includes substrate, light emitting diode, quantum dot layer and light guide plate, the amount in light excitation quantum dot layer that light emitting diode issues
Son point material forms white light, and quanta point material has unique photoelectric characteristic, can issue the light of pure high quality, can will show
The colour gamut of showing device is increased to 100% or more, so that the color representation of display device is more saturated true to nature, Picture Showing more has view
Feel impact force.Quanta point material in quantum dot layer is packaged in transparent medium, meanwhile, multiple sizes are provided in light guide plate not
The light entered in light guide plate quickly can be diffused to entire light guide plate region, and uniformly be projected by upper surface by one light guiding points.
Referring to shown in Fig. 2, Fig. 2 is a specific embodiment of light source module of the embodiment of the present invention, the embodiment of the present invention
Light source module includes: substrate 1；Light emitting diode 2, the light emitting diode 2 are set on the substrate 1, the light-emitting diodes
Pipe 2 shines upwards；Light guide plate 3, the light guide plate 3 are located at the top of the substrate 1, offer through-hole 31 on the light guide plate 3,
The through-hole 31 is opposite with the light emitting diode 2；Quantum dot layer 5, inner wall one of the quantum dot layer 5 close to the through-hole 31
Week setting, the quantum dot layer 5 includes quanta point material, and the quanta point material is packaged in hollow pipe column, the sky
Heart tubing string is made by transparent material, and outer wall one week of the hollow pipe column is opposite with the inner wall of the through-hole 31；Turn light rays part
4, the turn light rays part 4 is set on the light direction of the light emitting diode 2, for issue the light emitting diode
Light reflects and diffuses to inner wall one week of the hollow pipe column.
Exemplary, the light emitting diode of the embodiment of the present invention is LED luminescence chip, and LED luminescence chip shines upwards, is sent out
Light is penetrated similar to Lambertian radiator, light emitting angle is 120 °.
Refering to what is shown in Fig. 5, a kind of light source module provided in an embodiment of the present invention, turn light rays part 4 are set to light-emitting diodes
On the light direction of pipe 2, this turn light rays part 4 by the light that light emitting diode 2 issues for reflecting and diffusing to hollow pipe column
Inner wall one week, the light portion into hollow pipe column participates in the quanta point material that encapsulates in excitation hollow pipe column, and excitation generates
Light and be directly mixed to form white light transmitted through the light of hollow pipe column, final 3 incidence surface through the light guide plate of the white light being mixed to form
Into inside light guide plate 3, thus light propagation path is as shown in figure 4, issued light emitting diode 2 using turn light rays part 4
Light reflect and be dispersed to inner wall one week of hollow pipe column, and the inner wall for passing through hollow pipe column enters in quantum dot layer 5, thus will
Light emitting diode 2 issues locating for the power dissipation to quantum dot layer 5 of light in annular region, compared with the prior art in shine two
The light that pole pipe issues concentrates the quanta point material in excitation quantum pipe, and the light source module of the embodiment of the present invention passes through turn light rays
Part 4 is dispersed in annular region locating for quantum dot layer 5, drops after the light reflection for issuing light emitting diode 2 changes direction
The low corresponding optical energy density of quantum dot layer has effectively dispersed quanta point material excitation in 5 excitation process of quantum dot layer and has generated
Heat, avoid in quantum dot layer 5 quanta point material because quanta point material caused by excitation temperature is excessively high fails, to extend
The service life of quanta point material.
In the above-described embodiments, light emitting diode 2 can with burn red, green light or blue light, in order to realize it is red,
Green, blue three mixture of colours generates white light, and when 2 burn red of light emitting diode, quantum dot layer 5 includes that excitation generates green light
Quantum dot and excitation generate the quantum dot of blue light；When 2 glow green of light emitting diode, quantum dot layer 5 includes that excitation produces
The quantum dot of raw blue light and excitation generate the quantum dot of red light；When light emitting diode 2 turns blue coloured light, quantum dot layer 5 is wrapped
The quantum dot of green light and the quantum dot of excitation generation red light are generated containing excitation.Due to compared to red light and green light,
The frequency highest of blue light, energy is larger, is conducive to the excitation of quantum dot, therefore, is hereafter only turned blue color with light emitting diode 2
Light, quantum dot layer 5 include to be illustrated for excitation generates the quantum dot of green light and the quantum dot of excitation generation blue light.
Wherein, substrate 1 can be circuit board, the backboard of display device or mounting plate etc., it is not limited here.For
The material of substrate 1, can preferred heat sink material, with rapid dispersion Light-Emitting Diode shine generate heat.
In addition, without limitation to the thickness of quantum dot layer 5, specifically, the strong of blue light can be issued according to light emitting diode 2
Degree is adjusted, to meet the needs of different brightness.
Furthermore to the proportion of quanta point material included in quantum dot layer 5, the present invention without limitation, as long as specifically, can
To realize the light of excitation generation and directly be mixed to form white light transmitted through the light of quantum dot layer 5.
In order in the blu-ray reflection to quantum dot layer 5 that issues light emitting diode 2, specifically, turn light rays part 4 can be made
As structure as shown in Figure 2, i.e. turn light rays part 4 includes support plate 41 and the protrusion 42 for being set to 41 lower surface of support plate, this
Support plate 41 is covered at the through-hole 31 of 3 upper surface of light guide plate, and to realize support, this protrusion 42 protrudes into the sky that hollow pipe column surrounds
In heart district domain, and the surface of protrusion 42 is used for the reflection of generation incident light and diffuses to inner wall one week of hollow pipe column, to make to shine
The blue light that diode 2 issues can generate reflection on the surface of protrusion 42, and the blue light after reflection can enter the inner wall one of hollow pipe column
Week.It should be noted that the light that light emitting diode 2 issues is in addition to that can enter quantum dot layer 5 after the reflection of turn light rays part 4
Except, it can also be to be directly entered in quantum dot layer 5 shown in the transmission path of c light as shown in Figure 5 and c ' light.
Wherein, without limitation to the maximum width of protrusion 42, it is preferable that the maximum width of protrusion 42 should be slightly less than hollow pipe
The internal diameter of column, farthest incident ray to be reflexed in quantum dot layer 5, and meanwhile it is pre- to 4 expanded by heating of turn light rays part
Expansion space is stayed, racks hollow pipe column to prevent 4 expanded by heating of turn light rays part.
In addition, entering to improve along through-hole 31 1 weeks in order to which the energy for the light for reflecting protrusion 42 around is equal
The uniformity of light in light guide plate 3, and then the even light mixing of light guide plate 3 is improved, raised shape can be as shown in Figure 2
Pyramid type is also possible to hemispherical as shown in Figure 3.The light that conical and hemispheric raised 42 surface is reflected around
Energy is equal, the light of reflection enter excitation quantum dot generates after quantum dot layer 5 white light can along through-hole 31 1 weeks even into
In light guide plate 3, to improve the even light mixing of light guide plate 3, while the light energy of the part of quantum dot layer 5 can also be avoided close
Degree is concentrated, and the excitation uniformity of quanta point material in quantum dot layer 5 is improved, and further avoids local quantum in quantum dot layer
Because excitation generates, heat is excessively high to cause quanta point material to fail to point material.
In order to enable protrusion 42 to reflect incident ray and diffuse to the entire sky along hollow pipe column central axial direction
On heart pipe string internal wall, it is preferable that as shown in figure 5, raised 42 one end far from support plate 41 can be by incident ray (i.e. such as Fig. 5 institute
The a light and a ' light shown) lower edge of hollow pipe column is reflexed to, incident ray can be reflexed to hollow pipe by the side wall of protrusion 42
Region more than column lower edge, it follows that protrusion 42 can reflex to incident ray on entire hollow pipe column inner wall, thus
It on the power dissipation of incident ray to entire hollow pipe column inner wall, will further avoid quantum dot layer and concentrate fever, protect
Light has been demonstrate,proved to the launching efficiency of quantum dot, the failure probability of quantum dot has been reduced, extends the service life of quantum dot.
In order to improve the utilization rate that light emitting diode 2 emits beam, it is preferable that as shown in figure 5, most along light emitting diode 2
The light (c light and c ' light as shown in Figure 5) that the big angle of emergence (about 60 ° of unilateral side) is projected can be anti-by turn light rays part 4
It is incident upon the inner wall of hollow pipe column, or is emitted directly toward the inner wall of hollow pipe column, light emitting diode 2 is farthest issued light
Line injects quantum dot layer 5 to be used for backlight, which thereby enhances the utilization rate that light emitting diode emits beam.
The launching efficiency of quantum dot is influenced because part quantum dot is not excited or postpones excitation in order to prevent, preferably
The cross sectional shape on ground, hollow pipe column is circle, and hollow pipe column is conllinear with the central axes of conical protrusions 42, makes conical protrusions
The light that 42 surface is reflected around with identical energy while can enter in the quantum dot layer 5 of hollow pipe column side wall, to make
Quantum dot in quantum dot layer 5 obtain while and effectively excite, and then improve quantum dot in quantum dot layer 5 excitation effect
Rate.
Moreover, in order to so that quantum dot layer 5 is generated white light even into the light guide plate 3 of 31 surrounding of through-hole, preferably
The shape on ground, through-hole 31 is circle, and through-hole 31 is conllinear with the central axes of hollow pipe column, makes quantum dot layer 5 outside hollow pipe column
One week white light uniformly generated of wall with identical energy while can enter the inner wall of through-hole 31, and pass through 31 inner wall of through-hole and enter and lead
In tabula rasa 3, to make to excite the white light generated after quantum dot evenly into the light guide plate 3 of 31 surrounding of through-hole.
As an implementation, the lower surface of turn light rays part 4, the region opposite with light emitting diode 2 can be covered with
Reflecting material, with the light reflected in all incident so far regions, to realize the reflection of light.
As another embodiment, as shown in Fig. 2, turn light rays part 4 is made by transparent material, and turn light rays part 4
The lower surface region opposite with light emitting diode 2 be equipped with reflective particle or reflection site, the upper surface of turn light rays part 4 with
The opposite part of light emitting diode 2 is equipped with fluorescent powder 7 or quanta point material, so that turn light rays part 4 be enable to reflect one
Some light is transmissive to a part of light simultaneously, and the light of transmission can 4 upper surface fluorescent powder of excitation line tumbler or amount
Thus son point material can avoid display device and generate blackening at setting light bridgeware 4 to generate white light and project upwards.
It, can be with it should be noted that in order to guarantee that the emitting brightness of transmission region is consistent with the emitting brightness on light guide plate 3
By adjusting reflective particle or the density of site is reflected to adjust the transmission of light and reflects ratio, such as: reflection light
Ratio can be 90%~98%, and the ratio of transmitted ray can be 2%~10%.
Exemplary, fluorescent powder 7 can be the mixture comprising red fluorescence powder and green emitting phosphor, can also directly be
YAG (Yttrium Aluminate Garnet, yttrium-aluminium-garnet) fluorescent powder, is not specifically limited herein.
In order to realize being connected and fixed for hollow pipe column, it is preferable that as shown in Fig. 2, the lower surface of support plate 41, around protrusion
One week of 42 is equipped with annular slot 43, and the upper end of hollow pipe column can be connected in annular slot 43, to realize hollow pipe column
With being detachably connected for support plate 41, this connection type can save maintenance cost.
In order to provide certain support force to hollow pipe column, it is preferable that as shown in Fig. 2, between hollow pipe column and substrate 1
Pad is equipped with soft material 6, this soft material 6 can provide certain support force to hollow pipe column, and soft material 6 can prevent it is hollow
Opposing compression is generated between tubing string and substrate 1 and damages hollow pipe column or substrate 1, and specifically, this soft material 6 can be silicon
Rubber mat or foam etc., it is not limited here.
The shadow that the blue light that light emitting diode 2 issues in order to prevent is directly entered light guide plate 3 and issues light guide plate 3 rings view
Feel effect, it is preferable that the upper/lower terminal of quantum dot layer 5 stretches out the setting of through-hole 31, to be avoided as much as light emitting diode 2
The blue light of sending enters in light guide plate 3 directly through the inner wall of through-hole 31 and influences visual effect.
Hollow pipe column expanded by heating and light guide plate 3 occur to squeeze and be crushed in order to prevent, it is preferable that the outer wall of hollow pipe column
With on light guide plate 3 between 31 inner wall of through-hole there are certain interval, prevent hollow pipe column expanded by heating from occurring to squeeze and be crushed.
As shown in fig. 6, the backlight module 400 includes extremely the embodiments of the present invention also provide a kind of backlight module 400
Light source module 100 described in few any technical solution as above.
Each implementation of the light source module 100 as used in the backlight module 400 in the present embodiment and above-mentioned light source module
The light source module provided in example is identical, therefore the two is able to solve identical technical problem, and reaches identical desired effect.
It in the above-described embodiments, further include back as shown in fig. 6, backlight module 400 is other than including light source module 100
Plate 200 and optical diaphragm group 300.Wherein, light source module 100 is set on backboard 200, and backboard 200 is used to support this light source die
Block 100, optical diaphragm group 300 is set to 100 top of light source module, for optimizing the area source of the sending of light source module 100.Example
, as shown in fig. 6, optical diaphragm group 300 may include diffusion sheet 301, prismatic lens 302 and brightness enhancement film 303.
Wherein, backlight module 400 provided in an embodiment of the present invention, light source module 100 can be set to one, pass through increasing
The display of entire display panel can be realized in the power for adding light emitting diode 2, thus the lower production costs of display device.
In addition, the dynamic backlight control in order to realize display device, as shown in fig. 6, light source module 100 can be multiple,
And it is uniformly layed in the upper surface of backboard 200, it is possible thereby to by the independent control of each light source module 100 to realize that dynamic is carried on the back
Photocontrol, so that the display effect of display device can be improved.
In order to improve the dynamic backlight effect of display device, the side wall of light guide plate can be coated with instead in light source module 100
Material is penetrated, with the mutual propagation for preventing two neighboring light source module 100 from emitting beam, light source module 100 is enable to be completely independent
Control, to enhance the dynamic backlight effect of light source module 100.
In order to reduce the thickness of display device, the multiple light sources module 100 for being layed in 200 upper surface of backboard can be for as schemed
An entirety is mutually close to or is connected into two neighboring 100 side wall of light source module shown in 7, makes multiple light sources module 100
Light-emitting surface collectively forms the light-emitting surface of display device, realizes that entire uniform plane goes out light, has further reduced backlight module 400
Light mixing distance, to reduce the thickness of display device.
Preferably, the substrate 1 in light source module 100 can be is fixed on backboard 200 by screw or thermally conductive patch,
It is thus achieved that the connection of light source module 100 and backboard 200, and screw or thermally conductive patch can be by the heat in light source module 100
In amount conduction to backboard 200, in favor of heat dissipation.
As shown in figure 8, the display device includes liquid crystal display the embodiments of the present invention also provide a kind of display device
Backlight module 400 described in panel 500 and technical solution as above, liquid crystal display panel 500 described in 400 face of backlight module
Setting.
Due in each embodiment of the backlight module 400 and above-mentioned backlight module that use in the display device of this embodiment
The backlight module of offer is identical, therefore the two is able to solve identical technical problem, and reaches identical desired effect.
Other compositions etc. about display device of the embodiment of the present invention have been well known to those skilled in the art, herein not
It is described in detail again.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
1. a kind of light source module is used for backlight module characterized by comprising
Substrate；
Light emitting diode, the light emitting diode are set on the substrate, and the light emitting diode shines upwards；
Light guide plate, the light guide plate are located at the top of the substrate, offer through-hole on the light guide plate, the through-hole with it is described
Light emitting diode is opposite；
Quantum dot layer, the quantum dot layer is arranged for inner wall one week along the through-hole, and the quantum dot layer is located at by the hair
Optical diode issues and by the transmission path of the light after the reflection of turn light rays part, the quantum dot layer includes quantum dot material
Material, and the quanta point material is packaged in hollow pipe column, the hollow pipe column is made by transparent material, the hollow pipe column
Outer wall one week opposite with the inner wall of the through-hole；
The turn light rays part, the turn light rays part are set on the light direction of the light emitting diode, and being used for will be described
The light that light emitting diode issues reflects and diffuses to inner wall one week of the hollow pipe column.
2. light source module according to claim 1, which is characterized in that the turn light rays part includes support plate and is set to institute
The protrusion of support plate lower surface is stated, the through hole of the light guide plate upper surface is arranged in the support plate, and the protrusion is stretched
Enter in the hollow area that the hollow pipe column surrounds, the light that the surface of the protrusion is used to issue the light emitting diode is anti-
Inner wall one week for penetrating and diffusing to the hollow pipe column.
3. light source module according to claim 2, which is characterized in that the shape of the protrusion is cone or hemispherical.
4. light source module according to claim 1, which is characterized in that the turn light rays part is made by transparent material, and institute
The lower surface of turn light rays part is stated, the region opposite with the light emitting diode is equipped with reflective particle or reflects site, it is described
The upper surface of turn light rays part, the part opposite with the light emitting diode are equipped with fluorescent powder or quanta point material.
5. light source module according to claim 2, which is characterized in that the lower surface of the support plate surrounds the one of the protrusion
Week is equipped with annular slot, and the upper end of the hollow pipe column can be connected in the annular slot.
6. light source module according to claim 1, which is characterized in that pad is equipped with soft between the hollow pipe column and the substrate
Material.
7. light source module according to claim 1, which is characterized in that described in the upper/lower terminal of the quantum dot layer stretches out
Through-hole setting.
8. a kind of backlight module, which is characterized in that the backlight module includes at least one such as any one of claim 1~7
The light source module.
9. a kind of display device, which is characterized in that the display device includes liquid crystal display panel and as claimed in claim 8
Backlight module, the setting of liquid crystal display panel described in the backlight module face.
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| CN201510939577.3A CN105445994B (en) | 2015-12-16 | 2015-12-16 | A kind of light source module, backlight module and display device |
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| CN201510939577.3A CN105445994B (en) | 2015-12-16 | 2015-12-16 | A kind of light source module, backlight module and display device |
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| CN105445994B true CN105445994B (en) | 2019-06-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106784236A (en) * | 2016-11-22 | 2017-05-31 | 深圳市华星光电技术有限公司 | LED source and its manufacture method, display panel |
| CN107505769B (en) * | 2017-08-15 | 2021-02-26 | 京东方科技集团股份有限公司 | Backlight structure and display device |
| KR20200035316A (en) * | 2017-08-24 | 2020-04-02 | 코닝 인코포레이티드 | Systems and methods for high operating range micro LED backlighting |
| CN109655960B (en) * | 2019-02-26 | 2020-06-23 | 厦门天马微电子有限公司 | Backlight module and display device |
| US11860461B2 (en) | 2019-10-17 | 2024-01-02 | Boe Technology Group Co., Ltd. | Display panel and method for manufacturing the same |
| CN112162428B (en) * | 2020-08-28 | 2022-04-08 | 福州大学 | Mini-LED through hole dimming structure backlight source and manufacturing method thereof |
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| CN1782814A (en) * | 2004-11-26 | 2006-06-07 | Nec液晶技术株式会社 | Back-lighting unit and liquid crystal display using the same |
| CN102937268A (en) * | 2012-11-15 | 2013-02-20 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
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| JP6159302B2 (en) * | 2013-08-23 | 2017-07-05 | 富士フイルム株式会社 | Light conversion member, backlight unit, liquid crystal display device, and method of manufacturing light conversion member |
| CN104613389A (en) * | 2015-03-02 | 2015-05-13 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device with backlight module |
| CN105042515B (en) * | 2015-07-23 | 2018-11-06 | 武汉华星光电技术有限公司 | Light guide plate, backlight module and display device |
| CN105116610B (en) * | 2015-09-22 | 2018-10-30 | 深圳市华星光电技术有限公司 | A kind of backlight module |
| CN105068320B (en) * | 2015-09-22 | 2018-08-14 | 深圳市华星光电技术有限公司 | A kind of backlight module |
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| CN1782814A (en) * | 2004-11-26 | 2006-06-07 | Nec液晶技术株式会社 | Back-lighting unit and liquid crystal display using the same |
| CN102937268A (en) * | 2012-11-15 | 2013-02-20 | 京东方科技集团股份有限公司 | Light guide plate, backlight module and display device |
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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |