CN108064357A - The backlight module of backlight module lens and its composition - Google Patents
The backlight module of backlight module lens and its composition Download PDFInfo
- Publication number
- CN108064357A CN108064357A CN201780001154.4A CN201780001154A CN108064357A CN 108064357 A CN108064357 A CN 108064357A CN 201780001154 A CN201780001154 A CN 201780001154A CN 108064357 A CN108064357 A CN 108064357A
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- Prior art keywords
- backlight module
- central point
- module lens
- emitting surface
- substrate
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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
- G02F1/133606—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
- G02F1/133602—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
- 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
Landscapes
- 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 invention discloses a kind of backlight module lens, including being in cube structure substrate on the whole, the substrate has the bottom surface of square, the top surface of square and side, recess forms incidence surface upwards at the center of the bottom surface, protuberance forms main light-emitting surface to the top surface upwards, the main light-emitting surface is spliced including four free form surfaces, free form surface described in four has with reference to central point and combines central point central symmetry around this, this combines central point, and downwardly incidence surface is recessed and is located at the central point of incidence surface on same center line, wherein, the bed-plate dimension of the substrate, which is less than top surface size, makes the side towards 1 jiao of inside cant angle theta to form auxiliary light-emitting surface.The backlight module lens of the present invention can export sharp-edged square focus spot, can realize that Illumination Distribution is uniform in projected area, and integral illumination effect is remarkable when being combined as array.
Description
Technical field
The present invention relates to a kind of optical lenses that point light source is converted into area source, are especially carried on the back suitable for general lighting
Light technical field.
Background technology
With the development of large-size liquid crystal television technology, the backlight of LCD TV needs substantial amounts of LED to be arranged into array
Liquid crystal panel is illuminated, is set before every LED chip there are one lens, passes through lens and two is carried out to the light come out from LED
Secondary light distribution, to reduce the usage amount of backlight module thickness and LED, while the backlight for meeting liquid crystal wants briliancy and homogeneity
It asks.LED lens currently on the market, the circumference of optical texture top partial view diagram projection is mostly circle, optics knot
Structure partial shape is mostly rotational-symmetric form, therefore existing Straight-down type liquid crystal television LED lens hot spot is all circle, and light liquid
Brilliant tv display screen generally is square, and the LED lens being distributed using rectangular light spot will be more reasonable, how by every lens
Hot spot be adjusted to it is regular it is square be the technical issues that need to address.
The patent of invention of a Patent No. ZL201310095608.2 filed in 25 days March in 2013 of the applicant,
A kind of LED lens for directly-down liquid crystal backlight are disclosed, lens are the entities being made of clear material, and including bottom surface, are enclosed
The negative camber and positive camber extended around bottom surface in vertical direction, negative camber surrounding are recessed to form the first optical surface upwards, the
One optical surface is light entrance face, and it is bent that positive camber includes the second optics being mutually spliced that four surroundings are upwardly extended along bottom surface
Face, the second optical surface are refractive optical surface, and each second optical surface includes the side upwardly extended along bottom surface, laterally upwards
The upper convex surface of protrusion, along the convex upper recess surface towards central concave.Although the invention solves the problems of the prior art, can
The rectangle or elliptical spot of a uniform illumination are formed on diffuser plate, but can not still be solved when LED forming arrays
Light modulation problem between each luminescence unit.
Large scale liquid crystal display technology will be in pluralistic trend, the faces such as 4K, curved surface, quantum dot, Rimless in recent years
Plate demand will welcome high growth.It will enter into the market with consumption upgrading and trend in large size, 8K panels.It is with 75 inches
Example, 4K panel pixel closenesses are only 59ppi, and PPI can be promoted to more than 110 if 8K is promoted to, and display picture sophistication will
It is substantially improved.
In addition, HDR is the abbreviation of English " High Dynamatic Range " high dynamic range, refer to display effect more
Close to realistic colour seen by person, higher brightness and broader colour gamut are realized, the image quality promotion that HDR technologies are brought is directly perceived
It can feel, even General Visitors also can be distinguished with the naked eye, therefore HDR skills are carried on tv product one after another in numerous manufacturers in this year
Art.According to the standard of Dolby Vision and UHD Lines, to realize that Real HDR must are fulfilled for dynamic contrast, colour gamut
And the correlated condition of Peak Brightness.From the point of view of state-of-the art, dynamic range can reach 1500nits,
Minimum is only 0.05nit.The solution of HDR technologies mainly has following form：It is backlight subarea independence first from the point of view of hardware
Control；In addition backlight will use high colour gamut scheme, as Red using new fluorescent powder or uses quantum dot backlighting scheme.Except
Reach in terms of hardware display outside the standard of HDR, signal processing is also essential, and this requires chip must support HDR to solve
Code.Certainly, real HDR is realized, from the making of film source, coding and decoding, transmission and final display, all these links
It is required to the innovation and breakthrough of technology.
In TV market, because being influenced by panel price fluctuation, whole set of television manufacturer is faced with severe profit and chooses for a long time
War, and this technology will bring more real image quality to experience to user, be also beneficial to be promoted and make a profit.With industrial chain correlation technique
It is progressively ripe and break through, diversification is also presented in technology, and panel vendor attempts to have passed through LED local dimming technologies（LED local
dimming）HDR is realized with Tcon algorithms two ways, it is anticipated that coming years HDR TV will also welcome quick increasing
It is long.LED local dimming technologies（LED local dimming）Principle be by individually control the luminance of LED chip come
It realizes high contrast, however how to provide a kind of brand-new backlight module lens, it is this with different luminances to match
LED chip（Such as with different light intensity or with different shooting angle etc.）, be the invention solves another technology
Problem, this point have great technical meaning for this industry.
The content of the invention
To overcome the above disadvantages, it is an object of the invention to provide a kind of combination uniform backlight module of back lighting is saturating
Mirror.
In order to reach object above, the present invention provides a kind of backlight module lens, including being in cube structure on the whole
There is the bottom surface of square, the top surface of square and side, the center of the bottom surface to be recessed upwards for substrate, the substrate
Incidence surface is formed, protuberance forms main light-emitting surface to the top surface upwards, and the main light-emitting surface includes four free form surfaces and splices
It forms, the free form surface described in four has with reference to central point and combines central point central symmetry around this, this combines central point
Downwardly incidence surface is recessed and is located at the central point of incidence surface on same center line, wherein, the bottom surface of the substrate
Size, which is less than top surface size, makes the side towards inside cant angle theta1Angle is to form auxiliary light-emitting surface.
As further improvement of the invention, positioning column is provided on the bottom surface.
As further improvement of the invention, reflection plated film is coated on the main light-emitting surface and auxiliary light-emitting surface.
As further improvement of the invention, the θ1Angle is in the range of 1-15 °.
According to another aspect of the present invention, a kind of backlight module lens are provided, including being in cube structure base on the whole
Bottom, bottom surface of the substrate with rounded square, the top surface of rounded square and side, the center of the bottom surface are concave up
It falls into and forms incidence surface, protuberance forms main light-emitting surface to the top surface upwards, and the main light-emitting surface includes four free form surfaces and spells
It connects, the free form surface described in four has with reference to central point and combines central point central symmetry around this, this combines center
Downwardly incidence surface is recessed and is located at the central point of incidence surface on same center line point, wherein, the bottom of the substrate
Face size is less than top surface size, makes to correspond to the side at straight flange towards inside cant angle theta1Angle forms the first auxiliary light-emitting surface, correspondence
Side at fillet is towards inside cant angle theta2Angle forms the second auxiliary light-emitting surface.
As further improvement of the invention, the θ1And θ2Angle is in the range of 1-15 °.
As further improvement of the invention, the θ2Angle is more than θ1Angle.
As further improvement of the invention, radius of curvature is 0.1mm at the fillet of the top and bottom of the substrate
To 6mm.
As further improvement of the invention, applied on the main light-emitting surface, the first auxiliary light-emitting surface and the second auxiliary light-emitting surface
Cover reflection plated film.
According to another aspect of the present invention, a kind of backlight module is provided, including a plurality of backlight modules as described above
Lens are arranged into array, and LED chip is provided at the incidence surface of each backlight module lens.
The light efficiency figure of the present invention has certain remaining light around marginal position, a plurality of when applied to backlight module
Backlight module lens are arranged into array, and not close-packed arrays may be there are gap between every lens, and generated remaining light
Dark space caused by gap or clear zone can be eliminated, black surround or bright line will not be formed at binding site by ensureing makes whole light with position
Effect is evenly distributed.
Description of the drawings
Attached drawing 1 is the stereoscopic schematic diagram according to the embodiment one of the backlight module lens of the present invention；
Attached drawing 2 is the schematic front view according to the embodiment one of the backlight module lens of the present invention；
Attached drawing 3 be attached drawing 2 in along the sectional view of A-A；
Attached drawing 4 is the illuminating effect light efficiency test chart of embodiment one；
Attached drawing 5 is the stereoscopic schematic diagram according to the embodiment two of the backlight module lens of the present invention；
Attached drawing 6 is the schematic front view according to the embodiment two of the backlight module lens of the present invention；
Attached drawing 7 be attached drawing 6 in along the sectional view of A-A；
Attached drawing 8 is along the sectional view of B-B in attached drawing 6；
Attached drawing 9 is the optical schematic diagram of horizontal direction；
Attached drawing 10 is the illuminating effect light efficiency test chart of embodiment two.
Specific embodiment
Presently preferred embodiments of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Embodiment one
Referring to shown in each attached drawing 1 to attached drawing 4, the backlight module lens in the present embodiment are made of glass or optical resin material.
For substrate 1 on the whole in cube structure, substrate 1 has bottom surface 2, the top surface 3 of square and a side 4 of square, on bottom surface 2
Be provided with positioning column 10 for install position, the center of bottom surface 1 is recessed forms incidence surface 5 upwards.
Protuberance forms main light-emitting surface 6 to top surface 3 upwards, and main light-emitting surface 6 is spliced including four free form surfaces 7, and four certainly
Had by curved surface 7 with reference to central point 8 and combine 8 central symmetry of central point around this, this combines the downwardly incidence surface of central point 8
5 are recessed and are located at the central point of incidence surface 5 on same center line, wherein, 2 size of bottom surface of substrate 1 is less than 3 size of top surface
Make side towards inside cant angle theta1Angle is to form auxiliary light-emitting surface 9.Preferably, can be coated instead on main light-emitting surface 6 and auxiliary light-emitting surface 9
Penetrate plated film.
With reference to attached drawing 3 and attached drawing 4, the principle of the present invention is that main light-emitting surface 6 plays incident light being uniformly projected to square
The intermediate region of projection surface, and the incident light of wide-angle is utilized to be incident upon the side of square projection surface by auxiliary light-emitting surface 9
Edge position, otherwise these large angle incidence light will be by vertical offside reflection waste, it is necessary to explanation, the tiltangleθ1Usually
Between 1-15 ° of scope, since lens are integrated injection moldings, the inclination angle of introversion contributes to the realization of draft process.
When applied to backlight module, a plurality of backlight module lens are arranged into array, and each backlight module lens enter
LED chip 11 is provided at smooth surface 5.Since each backlight module lens can export sharp-edged square focus spot, work as combination
For array when integral illumination effect it is remarkable.
Embodiment two
Referring to shown in each attached drawing 5 to attached drawing 8, the backlight module lens in the present embodiment are made of glass or optical resin material.
For substrate 1 on the whole in cube structure, substrate 1 has bottom surface 2, the top surface 3 of rounded square and the side 4 of rounded square, top
Radius of curvature is 0.1mm to 6mm at the fillet of face and bottom surface, be provided on bottom surface 2 positioning column 10 for install positioning, bottom surface 1
Center upwards recess form incidence surface 5.
Protuberance forms main light-emitting surface 6 to top surface 3 upwards, and main light-emitting surface 6 is spliced including four free form surfaces 7, and four certainly
Had by curved surface 7 with reference to central point 8 and combine 8 central symmetry of central point around this, this combines the downwardly incidence surface of central point 8
5 are recessed and are located at the central point of incidence surface 5 on same center line, wherein, 2 size of bottom surface of substrate 1 is less than 3 ruler of top surface
It is very little, make to correspond to the side at straight flange towards inside cant angle theta1Angle forms the first auxiliary light-emitting surface 12, corresponding to the side at fillet
Towards inside cant angle theta2Angle forms the second auxiliary light-emitting surface 13, and θ2Angle is more than θ1Angle.Preferably, main light-emitting surface 6 and first it is auxiliary go out
Reflection plated film can be coated in smooth surface 12, the second auxiliary light-emitting surface 13.
With reference to attached drawing 7 to attached drawing 10, the principle of the present invention is：1st, in vertical plane, main light-emitting surface 6 plays incident light is equal
The even intermediate region for being projected to square projection surface, and the incident light of wide-angle is utilized to project by the first auxiliary light-emitting surface 12
In the marginal position of square projection surface, otherwise these large angle incidence light will be wasted by vertical offside reflection, due to second
The inclination angle of auxiliary light-emitting surface 13 is bigger, so as to fulfill by the light of corner to surrounding spread the phenomenon that.It is to be appreciated that the inclination angle
θ1And θ2Usually between 1-15 ° of scope, since lens are integrated injection moldings, the inclination angle of introversion additionally aids draft
The bonus effect of process.2nd, in the horizontal plane, in the case of right angle, the incident ray of script corner location can be by along a directions
It is totally reflected, situation of the radius of curvature for 3mm, incident ray quilt is used in the case of fillet is designed as, such as in the present embodiment
It is emitted along b directions, further enhances the light distribution of corner location.Concretely, the bigger corresponding position of the curvature of fillet herein
Light extraction is more, and light extraction is fewer at the smaller corresponding angles of curvature, and specific radius of curvature can change according to the adjustment of designing scheme, separately
Outside, the fillet of the position is suitble to the gripping for manufacturing mechanical arm in installation process.
When applied to backlight module, a plurality of backlight module lens are arranged into array, and each backlight module lens enter
LED chip 11 is provided at smooth surface 5.Since each backlight module lens can export sharp-edged square focus spot, work as combination
For array when integral illumination effect it is remarkable；Especially, when multiple lens arrays are arranged, such as four palaces formed with four monomers
Exemplified by lattice, can cause central spot present dark area effect, and by the lens combination for this implementations be array when, corner spread light
Line can eliminate the dark area effect, and uniform-illumination distribution on the whole is presented, therefore compared to the structure in embodiment one, effect
More preferably.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with technique
People understands present disclosure and is carried out, and it is not intended to limit the scope of the present invention, all spiritual according to the present invention
The equivalent change or modification that essence is done should all cover within the scope of the present invention.
Claims (10)
1. a kind of backlight module lens, it is characterised in that：Including being in cube structure substrate on the whole, the substrate is with just
Square bottom surface, the top surface of square and side, recess forms incidence surface, the top surface upwards at the center of the bottom surface
Protuberance forms main light-emitting surface upwards, and the main light-emitting surface is spliced including four free form surfaces, freely bent described in four
Face have with reference to central point and around this combine central point central symmetry, this combine central point downwardly incidence surface recess and
Be located at the central point of incidence surface on same center line, wherein, the bed-plate dimension of the substrate be less than top surface size make it is described
Side towards inside cant angle theta1Angle is to form auxiliary light-emitting surface.
2. backlight module lens according to claim 1, it is characterised in that：Positioning column is provided on the bottom surface.
3. backlight module lens according to claim 1, it is characterised in that：It is applied on the main light-emitting surface and auxiliary light-emitting surface
Cover reflection plated film.
4. backlight module lens as described in claim 1, it is characterised in that：The θ1Angle is in the range of 1-15 °.
5. a kind of backlight module lens, it is characterised in that：Including being in cube structure substrate on the whole, the substrate, which has, justifies
The square bottom surface in angle, the top surface of rounded square and side, recess forms incidence surface upwards at the center of the bottom surface, described
Protuberance forms main light-emitting surface to top surface upwards, and the main light-emitting surface is spliced including four free form surfaces, oneself described in four
Had by curved surface with reference to central point and combine central point central symmetry around this, this combines central point, and downwardly incidence surface is recessed
And it is located at the central point of incidence surface on same center line, wherein, the bed-plate dimension of the substrate is less than top surface size, makes
Form the first auxiliary light-emitting surface towards 1 jiao of inside cant angle theta corresponding to the side at straight flange, corresponding to the side at fillet towards inside
2 jiaos of second auxiliary light-emitting surfaces of formation of cant angle theta.
6. backlight module lens according to claim 5, it is characterised in that：The θ11-15 ° of scope is in θ for 2 jiaos
It is interior.
7. backlight module lens according to claim 5, it is characterised in that：2 jiaos of the θ is more than 1 jiao of θ.
8. backlight module lens according to claim 5, it is characterised in that：The fillet of the top and bottom of the substrate
Place's radius of curvature is 0.1mm to 6mm.
9. backlight module lens as claimed in claim 5, it is characterised in that：The main light-emitting surface, the first auxiliary light-emitting surface and
Coating reflection plated film on second auxiliary light-emitting surface.
10. a kind of backlight module, it is characterised in that：Including a plurality of backlight module lens as described in claim 1 to 9 is any
Array is arranged into, LED chip is provided at the incidence surface of each backlight module lens.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/084306 WO2018209487A1 (en) | 2017-05-15 | 2017-05-15 | Backlight module lens and backlight module formed by same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108064357A true CN108064357A (en) | 2018-05-22 |
Family
ID=62141977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780001154.4A Pending CN108064357A (en) | 2017-05-15 | 2017-05-15 | The backlight module of backlight module lens and its composition |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108064357A (en) |
| WO (1) | WO2018209487A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308588A (en) * | 2019-06-28 | 2019-10-08 | 厦门天马微电子有限公司 | A kind of backlight module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308588A (en) * | 2019-06-28 | 2019-10-08 | 厦门天马微电子有限公司 | A kind of backlight module and display device |
| CN110308588B (en) * | 2019-06-28 | 2022-02-25 | 厦门天马微电子有限公司 | Backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018209487A1 (en) | 2018-11-22 |
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Application publication date: 20180522 |
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| RJ01 | Rejection of invention patent application after publication |