CN105093662A - Optical filter and backlight module - Google Patents
Optical filter and backlight module Download PDFInfo
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- CN105093662A CN105093662A CN201510578359.1A CN201510578359A CN105093662A CN 105093662 A CN105093662 A CN 105093662A CN 201510578359 A CN201510578359 A CN 201510578359A CN 105093662 A CN105093662 A CN 105093662A
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- Prior art keywords
- rete
- optical filter
- light guide
- guide plate
- backlight module
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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
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Abstract
The invention discloses an optical filter. The optical filter comprises a substrate, multiple first films and multiple second films. The first films and the second films are arranged on the same side of the substrate. The first of the first films is arranged on one surface of the substrate, the second films and the first films are alternately overlapped layer by layer, the layers furthest from the substrate are set as the first films, the first films have a first refractive index, the second films have a second refractive index, and the first refractive index is larger than the second refractive index. The color saturation of a liquid crystal display panel can be increased through the optical filter. The invention further discloses a backlight module.
Description
Technical field
The present invention relates to field of liquid crystal display, particularly relate to a kind of optical filter and the backlight module with this optical filter.
Background technology
Liquid crystal indicator has become the main flow in modern display field, and liquid crystal self can not be luminous, so usually need backlight module to provide light source, in the prior art, usually adopts white light source as the light source of backlight module.At present, white light source the most general is the blue light wick that surface scribbles yellow aluminium yttrogarnet (YAG) fluorescent powder, but, adopt the backlight of yellow aluminium yttrogarnet fluorescent powder, after arranging in pairs or groups with display panels, the color saturation of the color shown by liquid crystal indicator is lower, and the color shown by liquid crystal indicator is bright-coloured not.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of optical filter, and described optical filter can improve the color saturation of the Show Color of liquid crystal indicator.
The present invention also provides a kind of backlight module.
In order to solve the problems of the technologies described above, on the one hand, The embodiment provides a kind of optical filter, comprise: a substrate, multiple first rete and multiple second rete, multiple described first rete and multiple described second rete are arranged at the same side of described substrate, first rete described in ground floor is arranged at a surface of described substrate, described second rete successively alternately superposes with described first rete, total number of plies of described first rete and described second rete is more than or equal to 10 layers, described first rete is set to apart from described substrate one deck farthest, described first rete has first refractive rate, described second rete has the second refractive index, described first refractive rate is larger than described second refractive index.
Wherein, described first rete is drawn materials as TiO
2, Nb
2o
5, Ti
3o
5, Ti
2o
3, TiO and CeO
2in at least one.
Wherein, described second rete is drawn materials as Y
2o
3, SiO
2, CeF
3, YF
3with at least one in ZnO.
Wherein, described substrate is glass, sapphire or mylar.
Wherein, total number of plies of described first rete and described second rete is in the scope of 15 layers to 60 layers, and the thickness of described first rete is in the scope of 30nm to 140nm, and the thickness of described second rete is in the scope of 50nm to 150nm.
Wherein, described optical filter is that penetrance in 570 to 610nn scope is less than 30% at wavelength, and the penetrance in the scope that wavelength is 420nm to 560nm and in 615nm to 680nm scope is greater than 75%.
On the other hand, the present invention also provides a kind of backlight module, comprise light guide plate, white light source and circuit board, described white light source is fixed on described circuit board, the optical filter of described backlight module also in above arbitrary described technical scheme and a fixture, described optical filter is arranged between described light guide plate and described white light source, the surface with the first rete of described optical filter is relative with the incidence surface of described light guide plate, the described substrate of described optical filter is relative with described white light source, described optical filter is fixed in described circuit board and/or described light guide plate by described fixture.
Wherein, described fixture is a clamping guide rail, described clamping guide rail comprises train wheel bridge and lower plate, described train wheel bridge is relative with described lower plate and arrange, described train wheel bridge is near the exiting surface of described light guide plate, described lower plate is away from the described exiting surface of described light guide plate, described train wheel bridge is provided with the first groove, described lower plate is provided with the second groove, described first groove is relative with described second groove, described filter holder is held between described train wheel bridge and described lower plate, and the coboundary of described optical filter embeds described first groove, lower limb embeds described second groove, one end of described train wheel bridge and described lower plate is individually fixed in described circuit board, the other end is individually fixed in described light guide plate.
Wherein, described fixture is shading glue, described shading glue comprises shading glue and lower shading glue, described optical filter is fixed between described upper shading glue and described lower shading glue, described upper shading glue one end is pasted on the exiting surface of described light guide plate, the other end is fixed on described circuit board, and described lower shading glue one end is pasted on the surface relative with described exiting surface of described light guide plate, and the other end is fixed on described circuit board.
Wherein, described white light source is the ultraviolet leds that surface scribbles the blue-ray LED of yellow fluorescent powder, surface scribbles red green fluorescence powder blue-ray LED or surface scribble RGB fluorescent powder.
Wherein, described backlight module also comprises reflector plate, backboard and posting, described reflector plate is fixed on the surface relative with its exiting surface of described light guide plate, described backboard comprises the first side wall and the second sidewall, described the first side wall and described second sidewall form an accommodation space, described reflector plate, described light guide plate, described white light source, described circuit board, described optical filter and described fixture are contained in the described accommodation space of described backboard, and described circuit board fits in the inner side of described the first side wall, described posting comprises across portion and indulges across portion, the described vertical outside fitting in described the first side wall across portion, described being fixed on across portion describedly vertical extends to the edge of the described exiting surface of described light guide plate across portion, the imbricate of the described edge across portion and described exiting surface, with fixing described light guide plate.
Compared with prior art, technical scheme of the present invention has following beneficial effect: optical filter being provided with of the present invention has the first rete of first refractive rate and have the second rete of the second refractive index, and the alternately superposition of described first rete and described second rete, described first refractive rate is greater than described second refractive index, thus make the light reflection of wavelength in 570 to 610nn scope, and the light of wavelength in the scope of 420nm to 560nm and in 615nm to 680nm scope is through described optical filter, thus promote color saturation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of optical filter in embodiments of the invention;
Fig. 2 is the structural representation of backlight module in the first embodiment of the present invention;
Fig. 3 is the structural representation clamping guide rail in first embodiment of the invention;
Fig. 4 is the structural representation of embodiments of the invention dorsulum;
Fig. 5 is the structural representation of backlight module in second embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly described.
Refer to Fig. 1, Fig. 1 is the structural representation of optical filter in embodiments of the invention.In embodiments of the invention, optical filter 10 comprises substrate 11, multiple first rete 12 and multiple second rete 13, first rete 12 and the second rete 13 are all arranged at the same side of substrate 11, what be directly arranged at the surface of substrate 11 is the first rete 12, namely first the first rete is arranged at the surface of substrate 11, second rete 13 is arranged on the first rete 13, overlapping with the first rete 12, and then second the first rete 12 is set on the second rete 13, so, the alternately superposition of first rete 12 and the second rete 13, that is, it is the 1st layer to be arranged at first the first rete 12 of substrate, first the second rete 13 is the 2nd layer, then odd-level is all the first rete 12, even level is all the second rete 13.Total number of plies of the first rete 12 and the second rete 13 is more than or equal to 11 layers, be set to the first rete 12 apart from described substrate one deck farthest, namely last one deck is the first rete 12, so, then a surface of the optical filter 10 of gained is substrate, and another surface is the first rete 12.First rete 12 has first refractive rate, and the second rete 13 has the second refractive index, and described first refractive rate is larger than described second refractive index, and in one embodiment of the invention, the difference of described first refractive rate and described second refractive index is more than or equal to 0.5.In the present embodiment, described optical filter 10 is provided with first rete 12 with first refractive rate and second rete 13 with the second refractive index, and the alternately superposition of described first rete 12 and described second rete 13, described first refractive rate is greater than described second refractive index, the number of plies of the first rete 12 and the second rete 13 is more than or equal to 11 layers, preferably, total number of plies of the first rete 12 and the second rete 13 is in the scope of 15 layers to 60 layers, because the number of plies is more, in FIG, all first retes 12 and the second rete 13 are not drawn, dotted line represents and eliminates several the first rete 12 and the second retes 13.Therefore, when light is by optical filter, through repeatedly refraction and the reflection of the first rete 12 and the second rete 13, the light of wavelength in 570 to 610nn scope is reflected, the light of wavelength in the scope of 420nm to 560nm and in 615nm to 680nm scope is then through described optical filter, make the color of ruddiness, blue light and green glow purer, thus promote color saturation, make the color shown by the display panels of the described optical filter of employing more bright-coloured.
In an embodiment of the present invention, the choice of material TiO of described first rete 12
2, Nb
2o
5, Ti
3o
5, Ti
2o
3, TiO and CeO
2in at least one, namely the first rete 12 is drawn materials as the one matter among them, or the potpourri of two or more material among them; Second rete 13 is drawn materials as Y
2o
3, SiO
2, CeF
3, YF
3with at least one in ZnO.
In an embodiment of the present invention, substrate 11 is glass, sapphire or mylar.
In an embodiment of the present invention, total number of plies of the first rete 12 and the second rete 13 is in the scope of 15 layers to 60 layers, and the thickness of the first rete 12 is in the scope of 30nm to 140nm, and the thickness of the second rete 13 is in the scope of 50nm to 150nm.
Such as, in one embodiment of the invention, the first rete 12 is TiO
2, and the second rete 13 is Y
2o
3, specifically, on glass substrate 11, plate by evaporation coating method the TiO that a layer thickness is 70nm
2, then at TiO
2on layer, evaporation a layer thickness is the Y of 105nm
2o
3, so alternately evaporation TiO
2layer and Y
2o
3layer, until total number of plies is 53 layers, makes last one deck be TiO
2layer.
In one embodiment of the invention, the first rete 12 is Nb
2o
5, and the second rete 13 is SiO
2with the potpourri of ZnO, specifically, can sputter a layer thickness be the Nb of 140nm on sapphire substrate 11
2o
5, then at Nb
2o
5upper sputter a layer thickness is the SiO of 150nm
2with the mixture layer of ZnO, so alternately sputter Nb
2o
5layer and SiO
2with the mixture layer of ZnO, until total number of plies is 15 layers, and last one deck is made to be Nb
2o
5layer.
In an embodiment of the present invention, described optical filter 10 is that penetrance in 570nn to 610nn scope is less than 30% at wavelength, penetrance in the scope that wavelength is 420nm to 560nm and in 615nm to 680nm scope is greater than 75%, thus improves the color saturation of the color of the display panels using this optical filter.
Refer to Fig. 2, Fig. 3 and Fig. 4, Fig. 2 is the structural representation of backlight module in the first embodiment of the present invention; Fig. 3 is the structural representation clamping guide rail in first embodiment of the invention; Fig. 4 is the structural representation of embodiments of the invention dorsulum.Provide a kind of backlight module in the first embodiment of the present invention, described backlight module comprises light guide plate 20, white light source 30 and circuit board 40, and the optical filter 10 described in above any embodiment and the fixture 50 for fixing optical filter 10.White light source 30 is fixed on circuit board 40, optical filter 10 is arranged between light guide plate 20 and white light source 30, the surface with the first rete of optical filter 10 is relative with the incidence surface 21 of light guide plate 10, the substrate 11 of optical filter 10 is relative with white light source 30, and described optical filter 10 is fixed in circuit board 40 and/or light guide plate 20 by described fixture 50.
In the present embodiment, fixture 50 is a clamping guide rail 50, described clamping guide rail 50 comprises train wheel bridge 51 and lower plate 52, described train wheel bridge 51 is relative with described lower plate 52 and arrange, described train wheel bridge 51 is provided with the first groove 511, described lower plate 52 is provided with the second groove 521, described first groove 511 is relative with described second groove 521, described optical filter 10 is held between described train wheel bridge 51 and described lower plate 52, and the coboundary of described optical filter 10 embeds described first groove 511, lower limb then embeds described second groove 521, optical filter 10 can not be subjected to displacement, described coboundary refers to the edge of the exiting surface 22 near light guide plate 20 of optical filter 10, described lower limb refers to the edge away from described coboundary of optical filter.Clamping guide rail 50 is arranged between the incidence surface 21 of circuit board 40 and light guide plate 20, and train wheel bridge 51 is near the side of the exiting surface 22 of light guide plate 20, and light guide plate 20 is fixed in one end of train wheel bridge 51, and the other end is fixed on circuit board 40; Lower plate 52 is near the lower surface of light guide plate 20, and described lower surface refers to the surface relative with the exiting surface 22 of light guide plate 20, and circuit board 40 is fixed in one end of lower plate 52, and the other end is fixed on light guide plate 20.
Described white light source 30 is the ultraviolet leds that surface scribbles the blue-ray LED of yellow fluorescent powder, surface scribbles red green fluorescence powder blue-ray LED or surface scribble RGB fluorescent powder.The described blue-ray LED scribbling yellow fluorescent powder can be the blue-ray LED scribbling yellow aluminium yttrogarnet fluorescent powder.White light source 30 light emission is to optical filter 10, after filtration when multiple first retes 12 of mating plate 10 and multiple second rete 13, experiencing multiple reflections and refraction, the light of wavelength in 570 to 610nn scope is finally made to be reflected, the light of wavelength in the scope of 420nm to 560nm and in 615nm to 680nm scope is then through described optical filter 10, make the blue light, ruddiness and the green glow that pass through purer, thus promote the color saturation of the Show Color of the display panels using described backlight module.When described first rete of optical filter is TiO
2, the second rete is Y
2o
3and when always the number of plies is 53 layers, for white light source for scribbling the situation of the blue-ray LED of yellow aluminium yttrogarnet (YAG) fluorescent powder, the NTSC71.9% when color saturation of the Show Color of display panels never can be provided with optical filter of the present invention rises to NTSC99.2% when being provided with optical filter of the present invention; Be the situation that surface scribbles the blue-ray LED of red green fluorescence powder for white light source, the NTSC94.5% when color saturation of the Show Color of display panels never can be provided with optical filter of the present invention rises to NTSC108% when being provided with optical filter of the present invention.
Refer to Fig. 2 and Fig. 4, in the present embodiment, described backlight module also comprises reflector plate 60, backboard 70 and posting 80.Reflector plate 60 is fixed on the lower surface of light guide plate 20, and described lower surface refers to the surface relative with exiting surface 22 of light guide plate, and the light of reflector plate 60 for reflection light plate 20 spills, to make full use of light source.Backboard 70 comprises the first side wall 71 and the second sidewall 72, the first side wall 71 and the second sidewall 72 form an accommodation space 73, described reflector plate 60, light guide plate 20, white light source 30, circuit board 40, optical filter 10 and described fixture 50 are contained in the described accommodation space 73 of backboard 70, and circuit board 40 fits in the inner side of described the first side wall 71, with fixing circuit board 40, thus other device being fixed on circuit board 40 is also fixed.Described reflector plate 60 can fit in the inner side of the second sidewall 72 of backboard 70, and then lightguide plate fixing 20, is understandable that, when reflector plate 60 lower surface also arranges other element, can not fit in described backboard 70 at described reflector plate 60.Described posting 80 is closed glue frames, comprise vertical across portion 81 with across portion 82, the described vertical outside fitting in the first side wall 71 of described backboard 70 across portion 81, described being fixed on across portion 82 describedly vertical extends to the edge of the described exiting surface 22 of described light guide plate across portion 81, the imbricate of the described edge across portion 82 and described exiting surface 22, with fixing described light guide plate 20 and light guide plate 20 and described vertical across the parts between portion 81, make it into as a whole.
Refer to Fig. 5, Fig. 5 is the structural representation of backlight module in second embodiment of the invention.In the present embodiment, the structure of backlight module is substantially identical with the structure of backlight module described in the first embodiment, and its distinctive points is: the structure of the fixture 50 in the present embodiment is different.In the present embodiment, fixture 50 is shading glue 50, and upper surface and the lower surface of described shading glue all have viscosity.Described shading glue 50 comprises shading glue and lower shading glue, and optical filter 10 is fixed between described upper shading glue and described lower shading glue.Described upper shading glue upper surface is fixed on the lower surface across portion 82 of described posting 80, in order to strengthen fixation further, described circuit board 40 can be fixed in one end of described upper shading glue, the other end can be fixed on light guide plate 20, and optical filter 10 is fixed on the lower surface of described shading glue by the upper surface of optical filter 10.In the present embodiment, described upper surface refer to towards with the exiting surface 22 of described light guide plate 20 towards identical surface, lower surface refers to the surface towards the opposite with the exiting surface 22 of light guide plate 20.Described lower shading glue one end is pasted on the lower surface of circuit board 40, and the other end is pasted on the edge of the lower surface of light guide plate 20, and the lower surface of optical filter 10 is pasted on the upper surface of lower shading glue.In the present embodiment, described shading glue both for fixing described optical filter 10, again for blocking the light that white light source sends, prevented described backlight module light leak.
In one embodiment of the invention, can also arrange a heating radiator (scheming not shown) between described white light source 30 and backboard 70, the heat that described white light source 30 is produced leaves in time.Now, described fixture can be fixed on described light guide plate 20 in one end, and the other end is fixed on described heating radiator.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Above-described embodiment, does not form the restriction to this technical scheme protection domain.The amendment done within any spirit at above-mentioned embodiment and principle, equivalently to replace and improvement etc., within the protection domain that all should be included in this technical scheme.
Claims (10)
1. an optical filter, it is characterized in that, described optical filter comprises a substrate, multiple first rete and multiple second rete, multiple described first rete and multiple described second rete are arranged at the same side of described substrate, first described first rete is arranged at the surface of described substrate, described second rete successively alternately superposes with described first rete, described first rete is set to apart from described substrate one deck farthest, described first rete has first refractive rate, described second rete has the second refractive index, and described first refractive rate is larger than described second refractive index.
2. optical filter as claimed in claim 1, it is characterized in that, described first rete is drawn materials as TiO
2, Nb
2o
5, Ti
3o
5, Ti
2o
3, TiO and CeO
2in at least one, described second rete is drawn materials as Y
2o
3, SiO
2, CeF
3, YF
3with at least one in ZnO.
3. optical filter as claimed in claim 1 or 2, it is characterized in that, described substrate is glass, sapphire or mylar.
4. optical filter as claimed in claim 1 or 2, it is characterized in that, total number of plies of described first rete and described second rete is in the scope of 15 layers to 60 layers, and the thickness of described first rete is in the scope of 30nm to 140nm, and the thickness of described second rete is in the scope of 50nm to 150nm.
5. optical filter as claimed in claim 4, is characterized in that, described optical filter is that penetrance in 570 to 610nn scope is less than 30% at wavelength, and the penetrance in the scope that wavelength is 420nm to 560nm and in 615nm to 680nm scope is greater than 75%.
6. a backlight module, comprise light guide plate, white light source and circuit board, described white light source is fixed on described circuit board, it is characterized in that, described backlight module also comprises optical filter described in any one of claim 1 to 5 and a fixture, described optical filter is arranged between described light guide plate and described white light source, the surface being provided with described first rete of described optical filter is relative with the incidence surface of described light guide plate, the described substrate of described optical filter is relative with described white light source, described optical filter is fixed in described circuit board and/or described light guide plate by described fixture.
7. backlight module as claimed in claim 6, it is characterized in that, described fixture is a clamping guide rail, described clamping guide rail comprises train wheel bridge and lower plate, described train wheel bridge is relative with described lower plate and arrange, described train wheel bridge is near the exiting surface of described light guide plate, described lower plate is away from the described exiting surface of described light guide plate, described train wheel bridge is provided with the first groove, described lower plate is provided with the second groove, described first groove is relative with described second groove, described filter holder is held between described train wheel bridge and described lower plate, and the coboundary of described optical filter embeds described first groove, lower limb embeds described second groove, one end of described train wheel bridge and described lower plate is individually fixed in described circuit board, the other end is individually fixed in described light guide plate.
8. backlight module as claimed in claim 6, it is characterized in that, described fixture is shading glue, described shading glue comprises shading glue and lower shading glue, described optical filter is fixed between described upper shading glue and described lower shading glue, and described upper shading glue one end is pasted on the exiting surface of described light guide plate, and the other end is fixed on described circuit board, described lower shading glue one end is pasted on the surface relative with described exiting surface of described light guide plate, and the other end is fixed on described circuit board.
9. the backlight module as described in any one of claim 6 to 8, is characterized in that, described white light source is the ultraviolet leds that surface scribbles the blue-ray LED of yellow fluorescent powder, surface scribbles red green fluorescence powder blue-ray LED or surface scribble RGB fluorescent powder.
10. the backlight module as described in any one of claim 6 to 8, it is characterized in that, described backlight module also comprises reflector plate, backboard and posting, described reflector plate is fixed on the surface relative with exiting surface of described light guide plate, described backboard comprises the first side wall and the second sidewall, described the first side wall and described second sidewall form an accommodation space, described reflector plate, described light guide plate, described white light source, described circuit board, described optical filter and described fixture are contained in the described accommodation space of described backboard, and described circuit board fits in the inner side of described the first side wall, described posting comprises across portion and indulges across portion, the described vertical outside fitting in described the first side wall across portion, described being fixed on across portion describedly vertical extends to the edge of the described exiting surface of described light guide plate across portion, the imbricate of the described edge across portion and described exiting surface, with fixing described light guide plate.
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|---|---|---|---|
| CN201510578359.1A CN105093662B (en) | 2015-09-11 | 2015-09-11 | Optical filter and backlight module |
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|---|---|---|---|
| CN201510578359.1A CN105093662B (en) | 2015-09-11 | 2015-09-11 | Optical filter and backlight module |
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| CN105093662B CN105093662B (en) | 2018-07-06 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867024A (en) * | 2016-05-24 | 2016-08-17 | 深圳市华星光电技术有限公司 | BLU (Backlight Unit) and LCD (Liquid Crystal Display) device |
| CN106125403A (en) * | 2016-09-05 | 2016-11-16 | 深圳市华星光电技术有限公司 | A kind of backlight module and liquid crystal display |
| CN106405937A (en) * | 2016-11-16 | 2017-02-15 | 深圳市华星光电技术有限公司 | Backlight module |
| CN106681055A (en) * | 2017-03-14 | 2017-05-17 | 深圳市华星光电技术有限公司 | Display device |
| CN109946878A (en) * | 2017-12-20 | 2019-06-28 | 乐金显示有限公司 | Back light unit and display device including the back light unit |
| US10769983B2 (en) | 2018-10-31 | 2020-09-08 | Xiamen Tianma Micro-Electronics Co., Ltd. | Backlight module and method for manufacturing the same, and display device |
| US20220390793A1 (en) * | 2021-06-03 | 2022-12-08 | E Ink Holdings Inc. | Light source module and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050186408A1 (en) * | 1993-12-21 | 2005-08-25 | 3M Innovative Properties Company | Multilayer optical bodies |
| CN1698010A (en) * | 2003-05-15 | 2005-11-16 | 索尼株式会社 | Screeen and its manufacturing method |
| TW200914934A (en) * | 2007-09-19 | 2009-04-01 | Chunghwa Picture Tubes Ltd | A liquid crystal display device |
-
2015
- 2015-09-11 CN CN201510578359.1A patent/CN105093662B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050186408A1 (en) * | 1993-12-21 | 2005-08-25 | 3M Innovative Properties Company | Multilayer optical bodies |
| CN1698010A (en) * | 2003-05-15 | 2005-11-16 | 索尼株式会社 | Screeen and its manufacturing method |
| TW200914934A (en) * | 2007-09-19 | 2009-04-01 | Chunghwa Picture Tubes Ltd | A liquid crystal display device |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867024A (en) * | 2016-05-24 | 2016-08-17 | 深圳市华星光电技术有限公司 | BLU (Backlight Unit) and LCD (Liquid Crystal Display) device |
| WO2017201774A1 (en) * | 2016-05-24 | 2017-11-30 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device |
| US10175529B2 (en) | 2016-05-24 | 2019-01-08 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and liquid crystal display device |
| CN106125403A (en) * | 2016-09-05 | 2016-11-16 | 深圳市华星光电技术有限公司 | A kind of backlight module and liquid crystal display |
| CN106405937A (en) * | 2016-11-16 | 2017-02-15 | 深圳市华星光电技术有限公司 | Backlight module |
| CN106405937B (en) * | 2016-11-16 | 2019-08-13 | 深圳市华星光电技术有限公司 | Backlight module |
| CN106681055A (en) * | 2017-03-14 | 2017-05-17 | 深圳市华星光电技术有限公司 | Display device |
| CN109946878A (en) * | 2017-12-20 | 2019-06-28 | 乐金显示有限公司 | Back light unit and display device including the back light unit |
| CN109946878B (en) * | 2017-12-20 | 2022-02-22 | 乐金显示有限公司 | Backlight unit and display device including the same |
| US10769983B2 (en) | 2018-10-31 | 2020-09-08 | Xiamen Tianma Micro-Electronics Co., Ltd. | Backlight module and method for manufacturing the same, and display device |
| US20220390793A1 (en) * | 2021-06-03 | 2022-12-08 | E Ink Holdings Inc. | Light source module and display device |
| US11709304B2 (en) * | 2021-06-03 | 2023-07-25 | E Ink Holdings Inc. | Light source module and display device |
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