CN106597741A - Direct type backlight module and liquid crystal display device - Google Patents

Direct type backlight module and liquid crystal display device Download PDF

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Publication number
CN106597741A
CN106597741A CN201611202717.XA CN201611202717A CN106597741A CN 106597741 A CN106597741 A CN 106597741A CN 201611202717 A CN201611202717 A CN 201611202717A CN 106597741 A CN106597741 A CN 106597741A
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CN
China
Prior art keywords
light
plate
backlight module
reflector plate
quantum film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201611202717.XA
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Chinese (zh)
Inventor
李富琳
金海洋
袁光军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Hisense Electronics Co Ltd
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Qingdao Hisense Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Hisense Electronics Co Ltd filed Critical Qingdao Hisense Electronics Co Ltd
Priority to CN201611202717.XA priority Critical patent/CN106597741A/en
Publication of CN106597741A publication Critical patent/CN106597741A/en
Priority to PCT/CN2017/096682 priority patent/WO2018113316A1/en
Withdrawn legal-status Critical Current

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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
    • G02F1/133603—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
    • G02F1/133602—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
    • G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white

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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)
  • Liquid Crystal (AREA)

Abstract

The invention discloses a direct type backlight module and a liquid crystal display device and relates to the technical field of liquid crystal display. The backlight module comprises a back plate, LED light sources, reflectors and a quantum film, wherein the back plate comprises a bottom plate and lateral plates arranged at the peripheral edges of the bottom plate, the included angle between each lateral plate and the bottom plate is an obtuse angle, the LED light sources are arranged on the bottom plate, the reflectors include main reflectors on the bottom plate and lateral reflector on the lateral plates, the LED light sources emit stimulation light to stimulate the quantum film above the reflector to generate stimulated light, and materials for absorbing the stimulated light wave band are arranged on the lateral reflectors. By the arrangement, the stimulated light components entering the lateral reflectors can be reduced, and the color consistency of the light going out from the edge positions and the middle position of the backlight module can be achieved.

Description

A kind of down straight aphototropism mode set and liquid crystal indicator
Technical field
The present invention relates to technical field of liquid crystal display, and in particular to a kind of down straight aphototropism mode set and liquid crystal indicator.
Background technology
In liquid crystal indicator, backlight module is used to provide backlight for the normal display picture of display panels.Wherein, Backlight module is divided into side entrance back module and down straight aphototropism mode set according to light source entrance positions difference.Side entrance back module Refer to that light source is arranged on backlight module side, light is incident to light guide plate, switchs to by light guide plate, blooming piece etc. equally distributed Area source；Down straight aphototropism mode set refers to that light source is arranged in the backplane array of backlight module, and light is directed through diffuser plate, blooming Piece etc. forms equally distributed area source.
At present, generally realize that high colour gamut shows using technology of quantum dots in down straight aphototropism mode set.Such as：Using blue led Luminescence chip launches blue light, and the yellow quanta point material in excitation quantum film produces gold-tinted, produced gold-tinted and fractional transmission Blue light be together mixed into white light outgoing, its colour gamut is up to more than 100%NTSC.But, yellow quantum dot material is packaged with application After the quantum film of material, backlight module marginal position can be partially yellow, so as to cause backlight module marginal position and centre position emergent light Line color is inconsistent.
The content of the invention
The embodiment of the present invention provides a kind of down straight aphototropism mode set and liquid crystal indicator, can solve the problem that above-mentioned correlation technique Middle backlight module marginal position and the inconsistent problem of centre position emergent ray color.
To reach above-mentioned purpose, the technical scheme adopted by the embodiment of the present invention is：
In a first aspect, the present invention provides a kind of down straight aphototropism mode set, including backboard, LED light source, reflector plate and quantum film, The backboard includes base plate, the side plate positioned at base plate edge and with base plate angle in obtuse angle, and LED light is placed above base plate Source, the reflector plate include the principal reflection piece being placed in above base plate and the side reflector plate being placed in above side plate, and the LED light source is sent out Excitation light is penetrated, to excite the quantum film being placed in above reflector plate to produce energized light, wherein, in the side reflector plate It is provided with the material for absorbing energized light wave band.
Second aspect, the present invention also provide a kind of liquid crystal indicator, including display floater, are arranged at below display floater Above-mentioned first aspect described in backlight module.
In the embodiment of the present invention, LED light source produces excitation light, to excite the quantum film being placed in above reflector plate to produce quilt The excitation light of excitation light, produced energized light and fractional transmission is mixed to form white light.
As quantum film stimulated luminescence process produces the backward light in part, the side that the backward light in this part is incided above side plate is anti- Penetrate piece position；And LED light source is placed on the base plate of backboard, the excitation light of such side reflector plate position is by the LED light on base plate Source remote distance irradiates so that position excitation light component is less, less excitation insufficient light with incide the position Part is energized light lines matching backward and is mixed to form white light, encourages light and energized light ratio in the outgoing of quantum film each position In the case that example is constant, the part is energized light Jing after side reflector plate reflection from quantum film edge outgoing, and causes backlight mould Group marginal position is compared with centre position colour cast.So, the present invention absorbs energized light wave band by arranging in side reflector plate Material, to absorb the energized light in the part for inciding the position, reduces the energized light component in the position, so as to solve the back of the body Light module marginal position reaches backlight module marginal position with centre position emergent ray color one compared with centre position colour cast problem The purpose of cause.
Description of the drawings
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to making needed for embodiment description Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for this For the those of ordinary skill of field, on the premise of not paying creative work, can be with other according to these accompanying drawings acquisitions Accompanying drawing.
Fig. 1 is the structural representation of the down straight aphototropism mode set using quantum film.
Fig. 2 is the schematic top plan view of back board part.
Fig. 3 is the schematic front view of back board part
Fig. 4 is that the light of the down straight aphototropism mode set using quantum film propagates schematic diagram.
Fig. 5 is a kind of structural representation of down straight aphototropism mode set provided in an embodiment of the present invention.
Fig. 6 is the schematic diagram of reflective sheet portions in backlight module shown in Fig. 5.
Fig. 7 is that the light of backlight module shown in Fig. 5 propagates schematic diagram.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art The all other embodiment obtained on the premise of creative work is not made, belongs to the scope of protection of the invention.
It should be noted that as equally distributed yellow quanta point material is packaged with quantum film, so from quantum film Blue light is transmitted in the light of each position outgoing and the proportions constant of generation gold-tinted is excited by blue light so that backlight module each position goes out Light color is consistent.But, in the down straight aphototropism mode set of practical application quantum film, but produce backlight module edge position Compared with the problem of centre position Huang partially, inventor is had found through lot of experiments and analysis, backlight module marginal position Huang partially Concrete reason is as follows：
Fig. 1 is the structural representation of the down straight aphototropism mode set using quantum film, and Fig. 2 is the schematic top plan view of back board part, Fig. 3 It is the schematic front view of back board part.As shown in Figure 1,2 and 3, backlight module includes from bottom to up：Backboard 12, reflector plate 13, LED light source 11 and quantum film 14.Wherein, LED light source 11 adopts BLUE LED emissions chip emission blue light, excitation quantum film 14 The yellow quanta point material of middle encapsulation produces gold-tinted, and produced gold-tinted is together mixed into white light with the blue light of fractional transmission and goes out Penetrate.
12 edge of backboard is provided with the inclined side plate 121 with 122 angle of base plate in obtuse angle, and LED light source 11 is placed Above base plate 122, the corresponding some light in 121 position of such side plate by 11 telecurie irradiation of LED light source on base plate 122, Make the position be the weaker high angle scattered light of light intensity mostly, therefore light corresponding with 122 position of base plate is common by multiple LED light sources 11 Compared with irradiation, side plate position blue light ingredient is less.
However, the LED light source 11 of 122 position of base plate sends blue light, excitation quantum film 14 produces the gold-tinted of all directions, this It is because that the excitation quantum film luminescence process is that isotropic lights.Wherein, some yellow light is incided and is placed in above side plate 121 On corresponding reflector plate 13, as the above analysis, 121 position blue light ingredient of side plate is less（The direct booster dose of the blue light ingredient Sub- film）And be not enough to and some yellow light matching is mixed to form white light, so from amount after reflected 13 reflection of some yellow light The 14 edge outgoing of sub- film, so in the case of quantum film edge position with centre position outgoing blue light and gold-tinted proportions constant, side Edge position yellow component is on the high side, finally results in backlight module marginal position inconsistent with centre position emergent ray color.
Example one, so that the conversion ratio of blue light is 50% as an example.Fig. 4 is the light of the down straight aphototropism mode set using quantum film Propagate schematic diagram.It is assumed that the blue light b of quantum film edge position is exposed to by LED light sourcejFor 50%, by LED light source Expose to the blue light b in quantum film centre positioniFor 100%.Have 60% to go out from quantum film in assuming the gold-tinted for excited by blue light generation Penetrate, 20% is left back to conversion gold-tinted, 20% right backward conversion gold-tinted.
Specifically, the blue light b of marginal position 50%jAfter excitation quantum film, 50% × 50%=25% of gold-tinted is produced, then from quantum 25% × 60%=15% gold-tinted y of film outgoingj1With 50% × 50%=25% blue light b of transmissionj1White light is mixed to form, then marginal position In emergent ray gold-tinted accounting be 15%/（15%+25%）=37.5%.
Further, the blue light b in centre position 100%iAfter excitation quantum film, 100% × 50%=50% of gold-tinted is produced, wherein, There is 50% × 20%=10% left back to conversion gold-tinted yiSide plate position is incident to, due to position blue light bjComposition be not enough to and this 10% It is left back to conversion gold-tinted yiBe mixed to form white light, so, this 10% it is left back to conversion gold-tinted yiFrom quantum film after reflected reflection Edge outgoing is gold-tinted yi1.Now, in marginal position emergent ray, gold-tinted accounting is（15%+10%）/（15%+25%+10%）=50% >37.5%, so in the case of quantum film edge position with centre position outgoing blue light and gold-tinted proportions constant, due to margin location Put gold-tinted accounting to significantly improve, and cause backlight module marginal position partially yellow.
It should be noted that when LED adopts the purple light of blue chip+red fluorescence powder for light source, by purple light excited envelope Quantum film equipped with green quanta point material produces green glow, and now backlight module marginal position may be partially green, concrete reason It is similar to the above, no longer describe in detail herein.
In the down straight aphototropism mode set using quantum film, it is to solve above-mentioned backlight module marginal position to go out with centre position The inconsistent problem of light color is penetrated, the present invention is mainly by arranging the energized light of absorption in the corresponding reflective sheet portions of side plate The material of wave band, to absorb the energized light in the part for being incident to backlight module marginal position, solves the position compared with centre position Colour cast problem, makes backlight module marginal position reach unanimity with centre position emergent ray color.
Fig. 5 is a kind of structural representation of down straight aphototropism mode set provided in an embodiment of the present invention, and Fig. 6 is the back of the body shown in Fig. 5 The schematic diagram of reflective sheet portions in light module.As it can be seen in figures 5 and 6, the backlight module can include：Backboard 36, it is placed in backboard 36 The LED light source 31 and reflector plate 32 of top, and the diffuser plate 33, quantum film 34 and the blooming that are sequentially placed into above reflector plate 32 Piece 35.
Wherein, LED light source 31 produces excitation light, and after diffuser plate 33, excitation quantum film 34 produces energized light, The repeatedly refraction or anti-between reflector plate 32, diffuser plate 33 and blooming piece 35 of the excitation light of energized light and fractional transmission White light outgoing is mixed to form after penetrating.Backboard 36 includes base plate 362, positioned at 362 edge of base plate and with 362 angle of base plate in blunt The side plate 361 at angle, places LED light source 31 above base plate 362.Reflector plate 32 includes the side reflector plate 321 being placed in above side plate 361 With the principal reflection piece 322 being placed in above base plate 362, wherein, the material for absorbing energized light wave band is set in side reflector plate 321 Material.
In the present invention, as quantum film stimulated luminescence process is isotropic, so have the energized light in part Incide the side reflector plate position above side plate；And LED light source is placed on the base plate of backboard, the excitation of such side reflector plate position Light is by the LED light source telecurie irradiation on base plate so that the position excitation light component is less, is not enough to and incides the position The energized light in part put is mixed to form white light, encourages light and energized light proportions constant in the outgoing of quantum film each position In the case of, the part is energized light Jing after side reflector plate reflection from quantum film edge outgoing, and causes backlight module edge Position is compared with centre position colour cast.
So, by the material for absorbing energized light wave band is arranged in side reflector plate, the position is incided to absorb The energized light in part, reduce the energized light component in the position, so as to solve backlight module marginal position compared with interposition Colour cast problem is put, the purpose of backlight module marginal position and centre position emergent ray solid colour is reached.
When specifically, with LED light source 31 as blue light, yellow quanta point material, blue light booster dose in quantum film 34, are packaged with In sub- film 34, yellow quanta point material to be to produce gold-tinted, final gold-tinted and fractional transmission blue light into as a example by white light specifically It is bright.Additionally, the effect for absorbing energized light band material is that the energized light incided on reflector plate is entered below Row is selectively partially absorbed, so as to ensure that backlight module each position emergent ray color reaches unanimity.
Fig. 7 is that the light of backlight module shown in Fig. 5 propagates schematic diagram.As shown in fig. 7, due to not placing above side plate 361 LED light source 31 so that be incident to blue light b in the light of 361 position of side platejComposition is few, blue light bjThe direct excitation quantum film of composition 34 produce gold-tinted yj1, and fractional transmission blue light bj1White light outgoing is mixed to form, without incident blue light and the incidence of unnecessary ratio Part in side reflector plate 321 is left back to conversion gold-tinted yiBe mixed to form white light, cause backlight module marginal position gold-tinted into Divide on the high side.Therefore, the material of absorption gold-tinted is provided with side reflector plate 321, the part in side reflector plate 321 is so incided It is left back to conversion gold-tinted yiAbsorbed, so in quantum film edge position and centre position outgoing blue light and gold-tinted proportions constant feelings Under condition, the position yellow component is reduced, so as to solve the problems, such as that backlight module marginal position is partially yellow compared with centre position, reached The purpose of backlight module marginal position and centre position emergent ray solid colour.
Example two, with above-mentioned example one, be incident in side reflector plate 10% it is left back to conversion gold-tinted yiIn, it is assumed that absorb It is left back to conversion gold-tinted y that the material of gold-tinted can absorb 6%i, then also 4% is left back to conversion gold-tinted yiJing after side reflector plate reflection From quantum film edge outgoing, now, in marginal position emergent ray, gold-tinted accounting is（15%+4%）/（15%+25%+4%）=43%< 50%, so in the case of quantum film edge position with centre position outgoing blue light and gold-tinted proportions constant, marginal position gold-tinted is accounted for Than substantially reduction, backlight module marginal position can be improved compared with centre position colour cast problem so that backlight module marginal position is with Between position emergent ray color reach unanimity.
In the examples described above, the quality that yellow band material is absorbed in side reflector plate can be adjusted, to control side reflector plate The ratio of gold-tinted is absorbed, so as to improve colour cast degree problem of the backlight module marginal position compared with centre position.For example：Above-mentioned example In, the quality for absorbing yellow band material can be adjusted so that its ratio for absorbing gold-tinted is 5%, 6%, 8% etc..Further, The material for absorbing yellow band can be coated with or be bonded in side reflector plate.
Optionally, in some variations of the embodiment of the present invention, purple light can be adopted for light source, for example blue LED die+ Red fluorescence powder, the green quanta point material encapsulated in excitation quantum film and produce green glow, the final green glow for producing is with part thoroughly The purple light penetrated is mixed to form white light, arranges the material of absorption green light band accordingly, to solve backlight module in side reflector plate Marginal position and the inconsistent problem of centre position emergent ray color；And other combination sides that art technology can be learnt Formula, is not restricted herein.
Optionally, the material of the energized light wave band of the above-mentioned absorption arranged in side reflector plate can be dyestuff or face Material, as long as the pigment or dyestuff meet the selective condition for absorbing energized light in side reflector plate.
It should be noted that, in the present invention, it is also possible to light-absorbing material is arranged in side reflector plate, the material can Energized light is absorbed with selective, it is also possible to selective to absorb excitation light.For example：Can arrange in side reflector plate One is pigment coated, includes yellow uitramarine and blue pigment during this is pigment coated, and selective absorption is incident to lateral reflection respectively Blue light on piece and by the light activated backward conversion gold-tinted of indigo plant；It is further alternative, by adjusting the pigment coated middle yellow face The mass percent of material and blue pigment, controls to absorb the ratio of gold-tinted and blue light, with reach backlight module marginal position with The purpose that centre position emergent ray color reaches unanimity.
The embodiment of the present invention also provides a kind of liquid crystal indicator, including display floater and is arranged at below display floater Backlight module shown in above-mentioned Fig. 5, can make the display floater each position emergent ray solid colour of liquid crystal indicator.
Above-mentioned liquid crystal indicator can be any product with display function or part, such as liquid crystal TV set, flat board Computer, pocket pc etc..
Other compositions of liquid crystal indicator with regard to the embodiment of the present invention etc. are well known to those skilled in the art, The state of the art is referred to, here is no longer described in detail.
Various embodiments above only to illustrate technical scheme, rather than a limitation；Although with reference to aforementioned each reality Apply example to be described in detail the present invention, it will be understood by those within the art that：Which still can be to aforementioned each Technical scheme described in embodiment is modified, or carries out equivalent to which part or all technical characteristic；And These modifications are replaced, and do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (4)

1. a kind of down straight aphototropism mode set, including backboard, LED light source, reflector plate and quantum film, the backboard include base plate, position Inclined side plate in the base plate edge and with the base plate angle in obtuse angle, places LED light source, institute above the base plate Stating reflector plate includes the principal reflection piece being placed in above the base plate and the side reflector plate being placed in above the side plate, the LED light Source transmitting excitation light, to excite the quantum film being placed in above the reflector plate to produce energized light, it is characterised in that： The material for absorbing the energized light wave band is provided with the side reflector plate.
2. down straight aphototropism mode set according to claim 1, it is characterised in that：The LED light source launches blue light, to excite When the quantum film produces gold-tinted, the material for absorbing yellow band in the side reflector plate, is provided with.
3. backlight module according to claim 2, it is characterised in that：The material coating for absorbing yellow band or bonding In the side reflector plate.
4. the backlight described in a kind of liquid crystal indicator, including display floater, the power any one of 1-3 being arranged at below display floater Module.
CN201611202717.XA 2016-12-23 2016-12-23 Direct type backlight module and liquid crystal display device Withdrawn CN106597741A (en)

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PCT/CN2017/096682 WO2018113316A1 (en) 2016-12-23 2017-08-09 Direct backlight module and liquid crystal display device

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CN107477436A (en) * 2017-08-16 2017-12-15 深圳创维－Rgb电子有限公司 A kind of quantum dot backlight module and back light apparatus
CN108051953A (en) * 2018-01-12 2018-05-18 安徽芯瑞达科技股份有限公司 A kind of high colour gamut down straight aphototropism mode set of low mixed light height
WO2018113316A1 (en) * 2016-12-23 2018-06-28 青岛海信电器股份有限公司 Direct backlight module and liquid crystal display device
CN110286519A (en) * 2019-05-29 2019-09-27 深圳市赛时达光电科技有限公司 Quantum dot backlight module
WO2019206329A1 (en) * 2018-04-28 2019-10-31 京东方科技集团股份有限公司 Reflective sheet and manufacturing method therefor, and direct-lit backlight module and display device
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CN114952034A (en) * 2022-06-23 2022-08-30 义乌清越光电技术研究院有限公司 Cutting control method, device and system of quantum dot film and display device
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