CN109270735A - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
- Publication number
- CN109270735A CN109270735A CN201811251073.2A CN201811251073A CN109270735A CN 109270735 A CN109270735 A CN 109270735A CN 201811251073 A CN201811251073 A CN 201811251073A CN 109270735 A CN109270735 A CN 109270735A
- Authority
- CN
- China
- Prior art keywords
- backlight module
- micro
- spill
- fluorescence coating
- luminescence chip
- 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.)
- Granted
Links
- 238000004020 luminiscence type Methods 0.000 claims abstract description 66
- 239000011248 coating agent Substances 0.000 claims abstract description 51
- 238000000576 coating method Methods 0.000 claims abstract description 51
- 230000003287 optical effect Effects 0.000 claims abstract description 41
- 239000000758 substrate Substances 0.000 claims abstract description 29
- 238000009792 diffusion process Methods 0.000 claims abstract description 26
- 239000007787 solid Substances 0.000 claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims description 20
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 210000004209 hair Anatomy 0.000 claims description 4
- 239000002096 quantum dot Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 34
- 239000004973 liquid crystal related substance Substances 0.000 description 16
- 238000005516 engineering process Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241001316290 Gypsophila Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 210000004276 hyalin Anatomy 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 238000010023 transfer printing Methods 0.000 description 1
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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
- G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
-
- 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
- G02F1/133606—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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of backlight module and display devices, pass through the first optical lens mirror layer in fluorescence coating away from luminescence chip side setting and the one-to-one prismatoid structure of luminescence chip, and the first optical lens mirror layer has multiple spaced three-dimensional spill micro-structures away from the side of fluorescence coating, each solid spill micro-structure edge is perpendicular to the direction of plane where substrate and the shape of the section by three-dimensional spill micro-structure minimum point is V-shaped, and the central area of luminescence chip is directed toward at the base angle of the two sides formation of each V-shaped.The light being emitted in this way from fluorescence coating passes through each three-dimensional spill micro-structure, it can make to reflect from the light that fluorescence coating is emitted to the two sides of luminescence chip, so as to increase the shooting angle for the light being emitted from fluorescence coating, so that light diffuses to large area, so as to so that backlight module uniformly goes out light.In addition, the quantity of subsequent production Diffusion barrier layer can also be reduced in this way, mould group thickness is reduced, Mini-LED backlight module is advantageously implemented.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of backlight module and display device.
Background technique
Liquid crystal display device (Liquid Crystal Display, LCD) has thin fuselage, power saving, radiationless etc. numerous
Advantage is widely used, such as: mobile phone, personal digital assistant (PDA), digital camera, computer screen or notes
This computer screen etc..Liquid crystal display device on existing market is largely backlight liquid crystal display device comprising liquid crystal
Show panel and backlight module (backlight module).The working principle of liquid crystal display panel is the glass base parallel in two panels
Liquid crystal molecule is placed in plate, liquid crystal molecule is controlled whether by being powered to glass substrate and changes direction, by backlight module
Light refraction, which comes out, generates picture.Since liquid crystal display panel itself does not shine, need to come by the light source that backlight module provides normal
Show image.Therefore, the brightness uniformity of backlight module has a great impact to the show uniformity of liquid crystal display die set, because
This, promoting backlight module brightness uniformity is those skilled in the art's urgent problem to be solved.
Summary of the invention
The embodiment of the present invention provides a kind of backlight module and display device, to promote backlight module brightness uniformity.
The embodiment of the invention provides a kind of backlight modules, comprising: substrate is located at spaced multiple on the substrate
Luminescence chip deviates from the fluorescence coating of the substrate side positioned at each luminescence chip, and is located at the fluorescence coating and deviates from institute
State luminescence chip side and the first optical lens mirror layer with the one-to-one prismatoid structure of the luminescence chip；Wherein, described
First optical lens mirror layer has multiple spaced three-dimensional spill micro-structures, each solid away from the side of the fluorescence coating
Spill micro-structure is along the direction perpendicular to substrate place plane and by the section of the three-dimensional spill micro-structure minimum point
Shape be V-shaped, and the central area of the luminescence chip is directed toward at the base angle that the two sides of each V-shaped are formed.
Optionally, in the specific implementation, in above-mentioned backlight module provided in an embodiment of the present invention, each three-dimensional spill
The minimum point of micro-structure is located in same level, and the distance between two neighboring described minimum point is identical.
Optionally, in the specific implementation, in above-mentioned backlight module provided in an embodiment of the present invention, by the luminescence chip
Central area be directed toward the two side areas of the luminescence chip, the solid spill micro-structure is from dense to sparse.
Optionally, in the specific implementation, two neighboring described vertical in above-mentioned backlight module provided in an embodiment of the present invention
The distance of the minimum point of body spill micro-structure to the upper surface of the fluorescence coating is different.
Optionally, in the specific implementation, in above-mentioned backlight module provided in an embodiment of the present invention, first optical lens
Mirror layer includes multiple diffusion particles.
Optionally, in the specific implementation, in above-mentioned backlight module provided in an embodiment of the present invention, the diffusion particle packet
Include one of silica, titanium dioxide or combination.
Optionally, in the specific implementation, in above-mentioned backlight module provided in an embodiment of the present invention, the solid spill is micro-
Structure includes one of concave curved surface micro-structure, spill prism microstructure or combination.
Optionally, in the specific implementation, in above-mentioned backlight module provided in an embodiment of the present invention, the concave curved surface is micro-
Structure includes one of conical spill micro-structure, hemispherical spill micro-structure, half elliptic spill micro-structure or combination.
Optionally, in the specific implementation, in above-mentioned backlight module provided in an embodiment of the present invention, the spill prism is micro-
Structure includes one of prism spill micro-structure, four prism spill micro-structures or combination.
Optionally, in the specific implementation, in above-mentioned backlight module provided in an embodiment of the present invention, the two neighboring hair
The distance between adjacent side of optical chip is identical.
Optionally, in the specific implementation, in above-mentioned backlight module provided in an embodiment of the present invention, two neighboring described
There is the second optical lens mirror layer, the second optical lens mirror layer has away from the side of the fluorescence coating between one optical lens mirror layer
Multiple spaced convex prism structures.
Optionally, in the specific implementation, in above-mentioned backlight module provided in an embodiment of the present invention, the fluorescence coating includes
One of phosphor powder layer and quantum dot layer or combination.
Correspondingly, the embodiment of the invention also provides a kind of display devices, including backlight mould provided in an embodiment of the present invention
Group.
The present invention has the beneficial effect that:
Backlight module provided in an embodiment of the present invention and display device, by being arranged in fluorescence coating away from luminescence chip side
There is the first optical lens mirror layer of prismatoid structure correspondingly with luminescence chip, and the first optical lens mirror layer deviates from fluorescence
The side of layer has multiple spaced three-dimensional spill micro-structures, and each solid spill micro-structure is along perpendicular to plane where substrate
Direction and the shape of the section by three-dimensional spill micro-structure minimum point be V-shaped, and the two sides of each V-shaped are formed
The central area of base angle direction luminescence chip.In this way from the light that fluorescence coating is emitted by that can be sent out when above-mentioned each three-dimensional spill micro-structure
Raw refraction, since the central area of luminescence chip is directed toward at the base angle that the two sides of each V-shaped are formed, so as to so that from fluorescence coating
The light of outgoing is reflected to the two sides of luminescence chip, so as to increase the shooting angle for the light being emitted from fluorescence coating, so that light expands
It is dissipated to large area, so as to so that backlight module uniformly goes out light.In addition, setting can also reduce subsequent production diffusion barrier in this way
The quantity of layer reduces mould group thickness, is advantageously implemented Mini-LED backlight module.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of backlight module in the related technology；
Fig. 2 is the overlooking structure diagram of backlight module in the related technology；
Light emission luminance distribution schematic diagram when Fig. 3 shines for backlight module in the related technology；
Fig. 4 is one of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Fig. 5 is the two of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Fig. 6 is the three of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Fig. 7 is the four of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Fig. 8 is the five of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Fig. 9 is the six of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Figure 10 is the seven of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Figure 11 is the eight of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Figure 12 is the nine of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Figure 13 is the ten of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Figure 14 is the 11 of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Figure 15 is the 12 of the section view concrete structure schematic diagram of backlight module provided in an embodiment of the present invention；
Figure 16 is one of the section view concrete structure schematic diagram of concave curved surface micro-structure provided in an embodiment of the present invention；
Figure 17 is the two of the section view concrete structure schematic diagram of concave curved surface micro-structure provided in an embodiment of the present invention；
Figure 18 is the three of the section view concrete structure schematic diagram of concave curved surface micro-structure provided in an embodiment of the present invention；
Figure 19 is one of the section view concrete structure schematic diagram of spill prism microstructure provided in an embodiment of the present invention；
Figure 20 is the two of the section view concrete structure schematic diagram of spill prism microstructure provided in an embodiment of the present invention；
Figure 21 A, Figure 21 B, Figure 21 C and Figure 21 D are respectively the structural schematic diagram for forming backlight module shown in fig. 5；
Figure 22 is the structural schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
In order to make the purpose of the present invention, the technical scheme and advantages are more clear, with reference to the accompanying drawing, to the embodiment of the present invention
The backlight module of offer and the specific embodiment of display device are described in detail.It should be appreciated that disclosed below is excellent
Select embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.And in the absence of conflict, the application
In embodiment and embodiment in feature can be combined with each other.It should be noted that each layer film thickness and shape in attached drawing
Do not reflect actual proportions, purpose is schematically illustrate the content of present invention.And same or similar label indicates phase from beginning to end
Same or similar element or element with the same or similar functions.
As depicted in figs. 1 and 2, Fig. 1 is the structural schematic diagram of backlight module in the related technology, and Fig. 2 is in the related technology
Backlight module overlooking structure diagram.General backlight module may include: substrate 100, multiple hairs on substrate 100
Optical chip 110 such as light emitting diode (Light Emitting Diode, LED) chip, and is located at each luminescence chip 110 and carries on the back
Fluorescence coating 120 from 100 side of substrate.Wherein, walking for the external connection for realizing signal and electricity is provided on substrate 100
Line, the cabling are used for transmission the luminous signal of driving LED chip.LED chip can be set to blue-light LED chip, fluorescence coating 120
Material may include yellow fluorescent powder, yellow fluorescent powder can be excited to emit yellow light by blue-light LED chip in this way, and led to
The yellow light of yellow fluorescent powder outgoing and the blue light of blue-light LED chip outgoing are crossed into white light.Alternatively, the material of fluorescence coating 120
Also may include red and green emitting phosphor, in this way can by blue-light LED chip excitated red fluorescent powder to emit feux rouges, with
And excite green emitting phosphor to emit green light, and mixed by the blue light of the feux rouges of outgoing and the outgoing of green light and blue-light LED chip
Synthesize white light.
High dynamic range (High dynamic range, HDR) technology is shown because it is compared with high dynamic with more preferably image quality
Show, it is more and more wider in display application.Liquid crystal display device will realize that HDR technology (is adjusted part usually using Local dimming
Light) regulated and controled, that is, the LED chip subregion in backlight module is regulated and controled, so that liquid crystal display device display effect
More preferably.Also, the chip size that Mini-LED chip compares common LED chip is smaller, and size is usually 100 μm~1000 μ
M, to be advantageously implemented HDR technology.Therefore, Mini-LED chip generally is set by the LED chip in backlight module.So
And the light emitting angle of Mini-LED chip has certain limit (generally at 120 ° or so), so that the region between LED chip
It is different with the bright dark degree in the region where LED chip, it is be easy to cause babysbreath phenomenon, as shown in Figure 3.
Based on this, the embodiment of the invention provides a kind of backlight modules, as shown in Figure 4 and Figure 5, mention for the embodiment of the present invention
The section view concrete structure schematic diagram of the backlight module of confession, comprising: substrate 100 is located at spaced multiple luminous on substrate 100
Chip 110, wherein Fig. 4 is illustrated by taking a luminescence chip 110 as an example, and Fig. 5 is by taking two luminescence chips 110 as an example
It is illustrated, the fluorescence coating 120 of 100 side of substrate is deviated from positioned at each luminescence chip 110, and be located at fluorescence coating 120 and carry on the back
The first optical lens mirror layer 130 from 110 side of luminescence chip and with the one-to-one prismatoid structure of luminescence chip 110；Wherein,
First optical lens mirror layer 130 has multiple spaced three-dimensional spill micro-structures 01, each solid away from the side of fluorescence coating 120
Spill micro-structure 01 is along the direction perpendicular to 100 place plane of substrate and by the section of three-dimensional 01 minimum point A of spill micro-structure
Shape be V-shaped, and each V-shaped two sides formed base angle β be directed toward luminescence chip 110 central area.
Backlight module provided in an embodiment of the present invention, by deviating from the setting of luminescence chip side and luminescence chip in fluorescence coating
One-to-one the first optical lens mirror layer with prismatoid structure, and the first optical lens mirror layer has away from the side of fluorescence coating
Have multiple spaced three-dimensional spill micro-structures, each solid spill micro-structure along the direction perpendicular to plane where substrate and
The shape of section by three-dimensional spill micro-structure minimum point is V-shaped, and hair is directed toward at the base angle that the two sides of each V-shaped are formed
The central area of optical chip.In this way from the light that fluorescence coating is emitted by that can be reflected when above-mentioned each three-dimensional spill micro-structure, by
It is directed toward the central area of luminescence chip in the base angle that the two sides of each V-shaped are formed, so as to so that the light being emitted from fluorescence coating
To the two sides of luminescence chip reflect, so as to increase from fluorescence coating be emitted light shooting angle so that light diffuse to it is larger
Region, so as to so that backlight module uniformly goes out light.In addition, setting can also reduce the number of subsequent production Diffusion barrier layer in this way
Amount reduces mould group thickness, is advantageously implemented Mini-LED backlight module.
In the specific implementation, in embodiments of the present invention, as shown in Figure 4 and Figure 5, each three-dimensional spill micro-structure 01 is minimum
Point A is located in same level, and the distance between two neighboring minimum point A is identical.Specifically, it is emitted when from fluorescence coating 120
Light (shown in arrow) when being irradiated to three-dimensional spill micro-structure 01, emergent light can occur to reflect (shown in arrow), due to each V-shaped
Two sides formed base angle β be directed toward luminescence chip central area, so as to so that from fluorescence coating 120 be emitted light to shine
The two sides of chip 110 reflect, so as to increase the shooting angle for the light being emitted from fluorescence coating 120 so that light diffuse to it is larger
Region, so as to so that backlight module uniformly goes out light.
It in the specific implementation, in embodiments of the present invention, as shown in Figure 6 and Figure 7, is backlight provided in an embodiment of the present invention
The section view concrete structure schematic diagram of mould group, Fig. 6 are illustrated by taking a luminescence chip 110 as an example, and Fig. 7 is sent out with two
It is illustrated for optical chip 110, the two side areas of luminescence chip 110 is directed toward by the central area of luminescence chip 110, stood
Body spill micro-structure 01 is from dense to sparse.Specifically, the two side areas of luminescence chip 110 is directed toward by 110 central area of luminescence chip
The three-dimensional spill micro-structure 01 of different densities can be set, i.e., more intensive stand is set in the central area of luminescence chip 110
Body spill micro-structure 01 is directed toward the micro- knot of three-dimensional spill of the two side areas of luminescence chip 110 in the central area of luminescence chip 110
Structure 01, which gradually becomes, to be dredged, and in this way since central area solid spill micro-structure 01 is closeer, the light being emitted from fluorescence coating 120 is reflected
Number it is more, then to the two sides of luminescence chip 110 reflect light it is more, so as to increase adjacent luminescence chip 110
Between region brightness, and then the brightness at 110 center of luminescence chip can be reduced, so that the area between luminescence chip 110
The bright dark degree approach in the region where domain and luminescence chip 110 is identical, to solve the problems, such as babysbreath.
It in the specific implementation, in embodiments of the present invention, as shown in Figure 8 and Figure 9, is backlight provided in an embodiment of the present invention
The section view concrete structure schematic diagram of mould group, Fig. 8 are illustrated by taking a luminescence chip 110 as an example, and Fig. 9 is sent out with two
It is illustrated for optical chip 110, the upper table of the minimum point A of two neighboring solid spill micro-structure 01 to fluorescence coating 120
The distance in face is different.Specifically, multiple three-dimensional spills in the corresponding first optical lens mirror layer 130 of same luminescence chip 110 are micro-
It is low that upper surface of the minimum point A of structure 01 apart from fluorescence coating 120 has height to have, and the light being emitted from fluorescence coating 120 passes through fluorescence coating
The angle spread when the lower three-dimensional spill micro-structure 01 of the distance of 120 upper surface is bigger, in this way can further will be from fluorescence
The light dispersion of 120 outgoing of layer, improves the region of light diffusion.
In order to further increase the diffusion effect of light, in embodiments of the present invention, as shown in Figure 10 and Figure 11, for the present invention
The section view concrete structure schematic diagram for the backlight module that embodiment provides, Figure 10 is illustrated by taking a luminescence chip 110 as an example
Illustrate, Figure 11 is illustrated by taking two luminescence chips 110 as an example, and in the specific implementation, the first optical lens mirror layer 130 can
To include multiple diffusion particles 02.It specifically, can be by way of spraying, by 02 sparse distribution of diffusion particle in the first optics
On lens jacket 130.It is of course also possible to use other way, by 02 sparse distribution of diffusion particle in the first optical lens mirror layer 130
On, it is not limited thereto.It should be noted that Figure 10 and Figure 11 are illustrated to the particle distribution density of diffusion particle 02
Illustrate, does not limit the shape of diffusion particle 02.
Further, in the specific implementation, in embodiments of the present invention, diffusion particle may include silica, dioxy
Change one of titanium or combination.Certainly, diffusion particle also may include the other diffusion particles that can be realized effect of the present invention,
This is not construed as limiting.Further, the diameter of diffusion particle can design determination according to actual application environment, not limit herein
It is fixed.
In the specific implementation, in embodiments of the present invention, Figure 10 and Figure 11 is on the basis of Fig. 6 and Fig. 7 in the first light
It learns and increases diffusion particle 02 on lens jacket 130, certainly, when it is implemented, can pass through increase in Fig. 4, Fig. 5, Fig. 8 and Fig. 9
Diffusion particle 02 further increases the diffusion effect of light, specific structural schematic diagram such as Figure 12, Figure 13, Figure 14 and Figure 15 to realize
It is shown；Wherein, Figure 12 is the section view tool of the corresponding backlight module for increasing diffusion particle in the first optical lens mirror layer 130 of Fig. 4
Body structural schematic diagram, Figure 13 are the section views of the corresponding backlight module for increasing diffusion particle in the first optical lens mirror layer 130 of Fig. 5
Concrete structure schematic diagram, Figure 14 are cuing open for the corresponding backlight module for increasing diffusion particle in the first optical lens mirror layer 130 of Fig. 8
Depending on concrete structure schematic diagram, Figure 15 is the corresponding backlight module for increasing diffusion particle in the first optical lens mirror layer 130 of Fig. 9
Section view concrete structure schematic diagram.
In the specific implementation, in embodiments of the present invention, three-dimensional spill micro-structure may include concave curved surface micro-structure, it is recessed
One of shape prism microstructure or combination.The light being emitted from fluorescence coating can pass through concave curved surface micro-structure or spill prism
Micro-structure is reflected to the two sides of luminescence chip, so as to increase the shooting angle for the light being emitted from fluorescence coating, so that light is spread
To large area, so as to so that backlight module uniformly goes out light.
Further, in embodiments of the present invention, concave curved surface micro-structure may include conical spill micro-structure, hemisphere
One of shape spill micro-structure, half elliptic spill micro-structure or combination.In the specific implementation, as shown in figure 16, spill is bent
Face micro-structure can be conical spill micro-structure；As shown in figure 17, concave curved surface micro-structure can be the micro- knot of hemispherical spill
Structure；As shown in figure 18, concave curved surface micro-structure can be half elliptic spill micro-structure.Certainly, in the specific implementation, spill is bent
Face micro-structure can also be that can be realized other concave curved surface micro-structures of effect of the present invention, be not limited thereto.
Further, in embodiments of the present invention, spill prism microstructure may include prism spill micro-structure, it is tetragonous
One of mirror spill micro-structure or combination.In the specific implementation, as shown in figure 19, spill prism microstructure can be prism
Spill micro-structure；As shown in figure 20, spill prism microstructure can be tetragonous mirror spill micro-structure.Certainly, in the specific implementation,
Spill prism microstructure can also be that can be realized other spill prism microstructures of effect of the present invention, be not limited thereto.
In order to facilitate simplifying manufacture craft and improving the uniformity of emergent light, in the specific implementation, implement in the present invention
In example, the distance between adjacent side of two neighboring luminescence chip is identical.
In order to enhance the brightness in region between luminescence chip, further, in embodiments of the present invention, such as Fig. 5, Fig. 7, figure
Shown in 9 and Figure 11, there is the second optical lens mirror layer 140, the second optical lens mirror layer between two neighboring first optical lens mirror layer 130
140 have multiple spaced convex prism structures 03 away from the side of fluorescence coating 120.Region is set between luminescence chip in this way
Convex prism structure is set, focusing light effect can be played, so as to enhance the brightness in region between luminescence chip, is further solved full
The problem of TianXing.
Further, in embodiments of the present invention, fluorescence coating may include one of phosphor powder layer and quantum dot layer or
Combination.
When it is implemented, in embodiments of the present invention, the material of the first optical lens mirror layer and the second optical lens mirror layer can be with
For one of silica gel, UV glue, hot-setting adhesive or combination.
It is described in detail below by production method of the specific embodiment to present invention backlight module shown in fig. 5:
(1) multiple luminescence chips 110 are formed on the substrate 100 for being formed with cabling (not shown) (with two in figure
Luminescence chip is in order to be illustrated), as illustrated in fig. 21；Specifically, luminescence chip 110 can be made by the method for die bond
On the substrate 100 for being formed with cabling 04.
(2) fluorescence coating 120 is formed on the substrate 100 for be formed with luminescence chip 110, as illustrated in fig. 21b；Specifically, may be used
To make fluorescence coating 120 by techniques such as injection molding, membrane pressure or sprayings.
(3) layer of transparent layer 150 is formed on the substrate 100 for be formed with fluorescence coating 120 by pressure sintering, such as Figure 21 C institute
Show；
(4) three-dimensional spill microstructure transfer printing is set by the hyaline layer 150 by mold 160, forms the first optical lens mirror layer
130, as shown in figure 21d；When it is implemented, the mold of different patterns can be selected according to different types of spill micro-structure,
This is without limitation.
Backlight module shown in fig. 5 of the embodiment of the present invention is made in (1)-(4) through the above steps.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, and as shown in figure 22, Figure 22 is this
The structural schematic diagram for the display device that inventive embodiments provide.The display device may include provided in an embodiment of the present invention above-mentioned
Backlight module 210, and the display panel 220 being oppositely arranged with backlight module 210.Wherein, display panel 220 is located at backlight mould
The light emission side of group 210.And the specific structure of backlight module 210 is referring to the implementation of backlight mould group, and therefore not to repeat here.
The principle that the display device solves the problems, such as is similar to backlight mould group, therefore the implementation of the display device can be joined
See the implementation of backlight mould group, repeating place, details are not described herein.
In the specific implementation, display panel can be liquid crystal display panel.The liquid crystal display panel includes: to be oppositely arranged
Array substrate and opposite substrate, and the liquid crystal layer being packaged between array substrate and opposite substrate.Specifically, the liquid crystal display
The specific structure of panel can have the same structure as in the prior art, and therefore not to repeat here.
In the specific implementation, display device provided in an embodiment of the present invention can be with are as follows: mobile phone, tablet computer, television set, aobvious
Show any products or components having a display function such as device, laptop, Digital Frame, navigator.For the display device
Other essential component parts be it will be apparent to an ordinarily skilled person in the art that having, this will not be repeated here,
Also it should not be taken as limiting the invention.
Backlight module provided in an embodiment of the present invention and display device, by being arranged in fluorescence coating away from luminescence chip side
There is the first optical lens mirror layer of prismatoid structure correspondingly with luminescence chip, and the first optical lens mirror layer deviates from fluorescence
The side of layer has multiple spaced three-dimensional spill micro-structures, and each solid spill micro-structure is along perpendicular to plane where substrate
Direction and the shape of the section by three-dimensional spill micro-structure minimum point be V-shaped, and the two sides of each V-shaped are formed
The central area of base angle direction luminescence chip.In this way from the light that fluorescence coating is emitted by that can be sent out when above-mentioned each three-dimensional spill micro-structure
Raw refraction, since the central area of luminescence chip is directed toward at the base angle that the two sides of each V-shaped are formed, so as to so that from fluorescence coating
The light of outgoing is reflected to the two sides of luminescence chip, so as to increase the shooting angle for the light being emitted from fluorescence coating, so that light expands
It is dissipated to large area, so as to so that backlight module uniformly goes out light.In addition, setting can also reduce subsequent production diffusion barrier in this way
The quantity of layer reduces mould group thickness, is advantageously implemented Mini-LED backlight module.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (13)
1. a kind of backlight module characterized by comprising substrate is located at spaced multiple luminescence chips on the substrate,
Deviate from the fluorescence coating of the substrate side positioned at each luminescence chip, and is located at the fluorescence coating and deviates from the luminescence chip
Side and the first optical lens mirror layer with the one-to-one prismatoid structure of the luminescence chip；Wherein, first optical lens
Mirror layer has multiple spaced three-dimensional spill micro-structures, each three-dimensional spill micro-structure away from the side of the fluorescence coating
The shape of the direction of plane and the section by the three-dimensional spill micro-structure minimum point where perpendicular to the substrate is V
Font, and the central area of the luminescence chip is directed toward at the base angle of the two sides formation of each V-shaped.
2. backlight module as described in claim 1, which is characterized in that the minimum point of each three-dimensional spill micro-structure is located at same
On one horizontal plane, and the distance between two neighboring described minimum point is identical.
3. backlight module as described in claim 1, which is characterized in that be directed toward the hair by the central area of the luminescence chip
The two side areas of optical chip, the solid spill micro-structure is from dense to sparse.
4. backlight module as described in claim 1, which is characterized in that the minimum point of the two neighboring three-dimensional spill micro-structure
Distance to the upper surface of the fluorescence coating is different.
5. backlight module according to any one of claims 1-4, which is characterized in that the first optical lens mirror layer includes multiple
Diffusion particle.
6. backlight module as claimed in claim 5, which is characterized in that the diffusion particle includes silica, titanium dioxide
One of them is combined.
7. backlight module according to any one of claims 1-4, which is characterized in that the solid spill micro-structure includes spill
One of curved surface microstructure, spill prism microstructure or combination.
8. backlight module as claimed in claim 7, which is characterized in that the concave curved surface micro-structure includes that conical spill is micro-
One of structure, hemispherical spill micro-structure, half elliptic spill micro-structure or combination.
9. backlight module as claimed in claim 7, which is characterized in that the spill prism microstructure includes that prism spill is micro-
One of structure, four prism spill micro-structures or combination.
10. backlight module according to any one of claims 1-4, which is characterized in that the phase of the two neighboring luminescence chip
The distance between adjacent side is identical.
11. backlight module according to any one of claims 1-4, which is characterized in that two neighboring first optical lens
There is the second optical lens mirror layer, the second optical lens mirror layer away from the side of the fluorescence coating there are multiple intervals to set between layer
The convex prism structure set.
12. backlight module according to any one of claims 1-4, which is characterized in that the fluorescence coating include phosphor powder layer and
One of quantum dot layer or combination.
13. a kind of display device, which is characterized in that including such as described in any item backlight modules of claim 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811251073.2A CN109270735B (en) | 2018-10-25 | 2018-10-25 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811251073.2A CN109270735B (en) | 2018-10-25 | 2018-10-25 | Backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109270735A true CN109270735A (en) | 2019-01-25 |
| CN109270735B CN109270735B (en) | 2021-08-17 |
Family
ID=65194223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811251073.2A Active CN109270735B (en) | 2018-10-25 | 2018-10-25 | Backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109270735B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114286954A (en) * | 2019-07-31 | 2022-04-05 | 路曼科有限公司 | Multi-faceted diffuser providing a specific light distribution from a light source |
| CN114759058A (en) * | 2022-04-20 | 2022-07-15 | 镭昱科技有限公司 | Micro-LED display chip, manufacturing method thereof and related equipment |
| CN115373185A (en) * | 2022-07-22 | 2022-11-22 | 深圳市德仓科技有限公司 | A lamp panel, its manufacturing method, and a backlight module |
| US20230057744A1 (en) * | 2021-08-19 | 2023-02-23 | Japan Display Inc. | Illumination device |
| TWI823385B (en) * | 2022-05-10 | 2023-11-21 | 新鉅科技股份有限公司 | Lens module and component for lens module |
| TWI847721B (en) * | 2023-05-23 | 2024-07-01 | 星亞視覺股份有限公司 | Light emitting diode display device and its light emitting diode display unit |
| US12210172B2 (en) | 2019-07-31 | 2025-01-28 | Lumenco, Llc | Diffuser combining a multi-faceted surface and a lens-covered surface to provide specific light distributions |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003187606A (en) * | 2001-12-21 | 2003-07-04 | Kenwood Corp | Light guide plate for illumination |
| DE202004013837U1 (en) * | 2004-09-06 | 2005-01-13 | K-BRIDGE ELECTRONICS CO., LTD., Yangmei | Liquid crystal display illumination device, has refractive and reflective elements in transparent plate for homogenizing light from evenly distributed light-emitting elements |
| CN101187757A (en) * | 2006-11-21 | 2008-05-28 | 三星Sdi株式会社 | Diffuser, light emitting device with diffuser and display with light emitting device |
| CN101408640A (en) * | 2007-10-09 | 2009-04-15 | 富士迈半导体精密工业（上海）有限公司 | Light source module group |
| CN101469828A (en) * | 2007-12-25 | 2009-07-01 | 住友化学株式会社 | Surface light source device and liquid crystal display |
| CN101620283A (en) * | 2008-07-04 | 2010-01-06 | 鸿富锦精密工业（深圳）有限公司 | Backlight module and diffusion plate thereof |
| CN101644854A (en) * | 2008-08-04 | 2010-02-10 | 鸿富锦精密工业（深圳）有限公司 | Direct backlight module |
| CN101755166A (en) * | 2008-05-23 | 2010-06-23 | 索尼公司 | Illumination device and display device |
| CN102313208A (en) * | 2011-09-05 | 2012-01-11 | 南京中电熊猫液晶显示科技有限公司 | Backlight module group |
| US20130070168A1 (en) * | 2010-05-26 | 2013-03-21 | Sharp Kabushiki Kaisha | Led light source, led backlight, liquid crystal display device and tv reception device |
| CN107861291A (en) * | 2017-10-24 | 2018-03-30 | 华为技术有限公司 | Backlight module, display screen and terminal |
-
2018
- 2018-10-25 CN CN201811251073.2A patent/CN109270735B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003187606A (en) * | 2001-12-21 | 2003-07-04 | Kenwood Corp | Light guide plate for illumination |
| DE202004013837U1 (en) * | 2004-09-06 | 2005-01-13 | K-BRIDGE ELECTRONICS CO., LTD., Yangmei | Liquid crystal display illumination device, has refractive and reflective elements in transparent plate for homogenizing light from evenly distributed light-emitting elements |
| CN101187757A (en) * | 2006-11-21 | 2008-05-28 | 三星Sdi株式会社 | Diffuser, light emitting device with diffuser and display with light emitting device |
| CN101408640A (en) * | 2007-10-09 | 2009-04-15 | 富士迈半导体精密工业（上海）有限公司 | Light source module group |
| CN101469828A (en) * | 2007-12-25 | 2009-07-01 | 住友化学株式会社 | Surface light source device and liquid crystal display |
| CN101755166A (en) * | 2008-05-23 | 2010-06-23 | 索尼公司 | Illumination device and display device |
| CN101620283A (en) * | 2008-07-04 | 2010-01-06 | 鸿富锦精密工业（深圳）有限公司 | Backlight module and diffusion plate thereof |
| CN101644854A (en) * | 2008-08-04 | 2010-02-10 | 鸿富锦精密工业（深圳）有限公司 | Direct backlight module |
| US20130070168A1 (en) * | 2010-05-26 | 2013-03-21 | Sharp Kabushiki Kaisha | Led light source, led backlight, liquid crystal display device and tv reception device |
| CN102313208A (en) * | 2011-09-05 | 2012-01-11 | 南京中电熊猫液晶显示科技有限公司 | Backlight module group |
| CN107861291A (en) * | 2017-10-24 | 2018-03-30 | 华为技术有限公司 | Backlight module, display screen and terminal |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114286954A (en) * | 2019-07-31 | 2022-04-05 | 路曼科有限公司 | Multi-faceted diffuser providing a specific light distribution from a light source |
| US12210172B2 (en) | 2019-07-31 | 2025-01-28 | Lumenco, Llc | Diffuser combining a multi-faceted surface and a lens-covered surface to provide specific light distributions |
| US20230057744A1 (en) * | 2021-08-19 | 2023-02-23 | Japan Display Inc. | Illumination device |
| CN114759058A (en) * | 2022-04-20 | 2022-07-15 | 镭昱科技有限公司 | Micro-LED display chip, manufacturing method thereof and related equipment |
| TWI823385B (en) * | 2022-05-10 | 2023-11-21 | 新鉅科技股份有限公司 | Lens module and component for lens module |
| CN115373185A (en) * | 2022-07-22 | 2022-11-22 | 深圳市德仓科技有限公司 | A lamp panel, its manufacturing method, and a backlight module |
| TWI847721B (en) * | 2023-05-23 | 2024-07-01 | 星亞視覺股份有限公司 | Light emitting diode display device and its light emitting diode display unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109270735B (en) | 2021-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109270735A (en) | A kind of backlight module and display device | |
| CN101371074B (en) | Planar illumination device | |
| KR100774061B1 (en) | Backlight and liquid crystal display device | |
| CN101495801B (en) | Surface area illumination device | |
| TWI457663B (en) | Backlight module | |
| CN102597605B (en) | Surface light source apparatus and use its display unit | |
| CN110609417A (en) | Lamp panel and manufacturing method thereof, backlight source and display device | |
| CN101936489A (en) | Backlight module and optical assembly thereof | |
| CN109143687A (en) | Backlight module, liquid crystal display die set and electronic equipment | |
| CN106662703A (en) | Tiled assemblies for a high dynamic range display panel | |
| WO2018214611A1 (en) | Backlight module and liquid crystal display device | |
| US7712912B2 (en) | Backlight module | |
| US10782469B2 (en) | Light guide plate and its fabricating method, as well as backlight module | |
| CN202469747U (en) | Sidelight-type backlight module and display device | |
| CN211236921U (en) | Brightening film, backlight module and display screen | |
| CN114624799B (en) | Diffusion plate and backlight module with same | |
| US7857489B2 (en) | Mixed light apparatus | |
| CN102563466A (en) | Backlight module and display device | |
| CN101373236A (en) | Backlight module and its optical film | |
| CN202521382U (en) | Light guide plate, backlight module and display device | |
| CN108761916A (en) | Backlight module and display device | |
| KR20160015833A (en) | Backlight device for LCD panel using quantum dot microcapsules | |
| CN107085260A (en) | The backing structure and LED of side entering type LED | |
| CN109407395A (en) | A kind of backlight module and display device | |
| WO2023283822A1 (en) | Backlight module and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |