CN105446005A - Quantum dot backlight source and liquid crystal display device - Google Patents
Quantum dot backlight source and liquid crystal display device Download PDFInfo
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- CN105446005A CN105446005A CN201510964222.XA CN201510964222A CN105446005A CN 105446005 A CN105446005 A CN 105446005A CN 201510964222 A CN201510964222 A CN 201510964222A CN 105446005 A CN105446005 A CN 105446005A
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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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
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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
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
Abstract
The invention provides a quantum dot backlight source. The quantum dot backlight source is composed of a first light source, a second light source, first quantum dot fluorescent powder with a first spectral band, second quantum dot fluorescent powder with a second spectral band and an optical element. First light emitted by the first light source stimulates the first quantum dot fluorescent powder to generate first-spectral-band light, and the first-spectral-band light enters the left eye of a viewer through the optical element; second light emitted by the second light source stimulates the second quantum dot fluorescent powder to generate second-spectral-band light, and the second-spectral-band light enters the right eye of a viewer through the optical element. According to the quantum dot backlight source, the first quantum dot fluorescent powder and the second quantum dot fluorescent powder with different spectral bands are used for emitting the first-spectral-band light and the second-spectral-band light respectively, the first-spectral-band light and the second-spectral-band light enter the left eye and the right eye of the viewer respectively through a first light guide plate, and therefore a liquid crystal display device with the quantum dot backlight source can achieve spectral separation 3D display effectively.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of quantum dot Backlight source and liquid crystal display device realizing spectral separation 3D display.
Background technology
Backlight is the vitals of liquid crystal display, because liquid crystal molecule itself is not luminous, so need extra equipment for it provides light source.Existing back light majority is LED light source, but use at present the scheme of blue-ray LED collocation fluorescent powder ejecting white light due to spectrum wider and cause the colour gamut of liquid crystal display lower.At present in liquid crystal display, color domain has the technology significantly promoted to be technology of quantum dots, and its ultimate principle is blue-ray LED excitation quantum dot fluorescent powder and red-emitting and green glow, and three is combined into white light again.
Spectral unmixing technology is a kind of 3D display technique comparatively advanced at present, its ultimate principle is by redness, the spectrum that green and blue three primary colors are corresponding segments again, such as red color light component is subdivided into ruddiness 1 and ruddiness 2 again, green color components is subdivided into green glow 1 and green glow 2 again, blue light ingredient is subdivided into blue light 1 and blue light 2 again, red, spectra overlapping is not had between two parts light that green and blue three primary colors are subdivided separately, ruddiness 1, the image that green glow 1 and blue light 1 form enters eyes of people, ruddiness 2, the image that green glow 2 and blue light 2 form enters other eyes of people, form 3D rendering thus.The equipment wherein segmenting ruddiness, green glow and blue light is generally narrow-band-filter glasses.
Spectral separation stereoscopic imaging technology and the maximum difference of traditional stereoscopic imaging technology are: it adopts the method for spectral separation to realize the high separation of right and left eyes space image, image is separated by the wavelength difference according to different color light, without any signal conversion processes process, be therefore also referred to as passive stereo imaging.Relative to traditional stereoscopic imaging technology, spectral separation stereoscopic imaging technology has the following advantages: 1, left and right stereogram is by strict filtering and high separation, puts on one's glasses when watching stereo-picture without ghost phenomena; 2, good, good, the lasting viewing of flicker free, comfortableness of image quality is without dizzy phenomenon; 3, glasses do not need the circuit of outfit power supply and complexity, glasses light, and therefore comfort is better; 4, do not need signal synchronous transmitter, head can arbitrarily movement, wearer mutually between can not produce interference, mass viewer audiences applications can be met.
But current liquid crystal indicator generally also cannot realize the 3D display of spectral separation.
Summary of the invention
Based on this, the invention provides a kind of quantum dot Backlight source and liquid crystal display device realizing spectral separation 3D display, effectively to solve prior art Problems existing.
A kind of quantum dot backlight, it comprises: the first light source, secondary light source, have the first quantum dot fluorescence powder of the first spectral band, have the second quantum dot fluorescence powder and optical element of the second spectral band, the first light that described first light source sends excites described first quantum dot fluorescence powder to produce the first spectral band light, and the left eye of beholder is entered through described optical element, the second light that described secondary light source sends excites described second quantum dot fluorescence powder to produce the second spectral band light, and enters the right eye of beholder through described optical element.
In the present invention one better embodiment, described optical element comprises the first light guide plate, and described first quantum dot fluorescence powder and described second quantum dot fluorescence powder are arranged at the different sides of described first light guide plate respectively.
In the present invention one better embodiment, described first quantum dot fluorescence powder and described second quantum dot fluorescence powder are arranged at two relative sides of described first light guide plate respectively.
In the present invention one better embodiment, described optical element comprises and stackedly arranges the second light guide plate and the 3rd light guide plate, and described first quantum dot fluorescence powder and described second quantum dot fluorescence powder are arranged at the side of described second light guide plate and the side of described 3rd light guide plate respectively.
In the present invention one better embodiment, described first quantum dot fluorescence powder and described second quantum dot fluorescence powder are arranged at the side of the same side of described second light guide plate and described 3rd light guide plate respectively.
In the present invention one better embodiment, described optical element comprises diffusion sheet, the below of described diffusion sheet is arranged alternately multiple described first quantum dot fluorescence powder and multiple described second quantum dot fluorescence powder, and the below of described first quantum dot fluorescence powder and described second quantum dot fluorescence powder respectively correspondence is provided with described first light source and described secondary light source.
In the present invention one better embodiment, the below of described first light source and described secondary light source is also provided with reflectance coating, and described reflectance coating is parallel to described diffusion barrier and arranges.
In the present invention one better embodiment, described first light source comprises the first blue laser and the pointolite of described first blue laser is converted to the First Line light source conversion device of line source, and described secondary light source comprises the second blue laser and the pointolite of described second blue laser is converted to the second line source conversion equipment of line source.
In the present invention one better embodiment, containing the first red quantum dot fluorescent powder and the first green quantum dot fluorescent powder in described first quantum dot fluorescence powder, containing the second red quantum dot fluorescent powder and the second green quantum dot fluorescent powder in described second quantum dot fluorescence powder, described first red quantum dot fluorescent powder and described second red quantum dot fluorescent powder are excited to launch respectively the ruddiness of different spectrum, and described first green quantum dot fluorescent powder and described second green quantum dot fluorescent powder are excited to launch respectively the ruddiness of different spectrum.
The present invention provides a kind of liquid crystal indicator in addition, it blooming of top and liquid crystal panel of comprising described quantum dot backlight and being set in turn in described quantum dot backlight.
Relative to prior art, quantum dot backlight provided by the invention utilizes the first quantum dot fluorescence powder and the second quantum dot fluorescence powder of different spectral band, launch the first spectral band light and the second spectral band light respectively and entered left eye and the right eye of beholder by the first light guide plate respectively, can effectively make the liquid crystal indicator with described quantum dot backlight realize the 3D display of spectral separation.
Accompanying drawing explanation
The vertical view of the quantum dot backlight that Fig. 1 provides for first embodiment of the invention;
Fig. 2 is the side view of the backlight of quantum dot shown in Fig. 1;
Fig. 3 is for having the side view of the liquid crystal indicator of the backlight of quantum dot shown in Fig. 1;
Fig. 4 is the process flow diagram by the display of liquid crystal indicator shown in Fig. 3 3D rendering;
The design sketch of Fig. 5 for utilizing liquid crystal indicator shown in Fig. 3 to show 3D rendering;
The side view of the quantum dot backlight that Fig. 6 provides for second embodiment of the invention;
Fig. 7 is for having the side view of the liquid crystal indicator of the backlight of quantum dot shown in Fig. 6;
The side view of the quantum dot backlight that Fig. 8 provides for third embodiment of the invention;
Fig. 9 is for having the side view of the liquid crystal indicator of the backlight of quantum dot shown in Fig. 8.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Better embodiment of the present invention is given in accompanying drawing.These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe concrete embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
The invention provides a kind of quantum dot backlight, its first light source, secondary light source, there is the first quantum dot fluorescence powder of the first spectral band, there is the second quantum dot fluorescence powder and optical element of the second spectral band, the first light that described first light source sends excites described first quantum dot fluorescence powder to produce the first spectral band light, and the left eye of beholder is entered through described optical element, the second light that described secondary light source sends excites described second quantum dot fluorescence powder to produce the second spectral band light, and enters the right eye of beholder through described optical element.
In the present invention, described optical element can be light guide plate or diffuser plate.
Embodiment one
See also Fig. 1 and Fig. 2, first embodiment of the invention provides a kind of quantum dot backlight 100, it comprises the first light source 10, secondary light source 20, there is the first quantum dot fluorescence powder 30 of the first spectral band, there is the second quantum dot fluorescence powder 40 and the first light guide plate 50 of the second spectral band, the first light that described first light source 10 sends excites described first quantum dot fluorescence powder 30 to produce the first spectral band light, and the left eye of beholder is entered through described first light guide plate, the second light that described secondary light source 20 sends excites described second quantum dot fluorescence powder to produce the second spectral band light, and the right eye of beholder is entered through described first light guide plate.
Be understandable that, in the present embodiment, described optical element comprises described first light guide plate 50.
Described first light source 10 and described secondary light source 20 are for generation of exciting light, excite described first quantum dot fluorescence powder 30 and described second quantum dot fluorescence powder 40 respectively, make described first quantum dot fluorescence powder 30 and described second quantum dot fluorescence powder 40 be excited to produce the first spectral band light and the second spectral band light respectively.
In the present embodiment, described first light source 10 comprises the first blue laser 11 and the pointolite of described first blue laser 11 is converted to the First Line light source conversion device 13 of line source, and described secondary light source 20 comprises the second blue laser 21 and the pointolite of described second blue laser 21 is converted to the second line source conversion equipment 23 of line source.Described first blue laser 11 and described second blue laser 21 have different wavelength, can be such as 450nm and 473nm, the laser that namely described first blue laser 11 and described second blue laser 21 send be respectively first blue light and the second blue light with different wave length.Described First Line light source conversion device 13 and described second blue laser 21 are respectively used to the pointolite of described first blue laser 11 and described second blue laser 21 to be converted to line source.
In the present embodiment, containing the first red quantum dot fluorescent powder and the first green quantum dot fluorescent powder in described first quantum dot fluorescence powder 30, containing the second red quantum dot fluorescent powder and the second green quantum dot fluorescent powder in described second quantum dot fluorescence powder 40, described first red quantum dot fluorescent powder and described second red quantum dot fluorescent powder are excited to launch respectively the ruddiness of different spectrum, and described first green quantum dot fluorescent powder and described second green quantum dot fluorescent powder are excited to launch respectively the green glow of different spectrum.
In the present embodiment, described first quantum dot fluorescence powder 30 and described second quantum dot fluorescence powder 40 are arranged at the different sides of described first light guide plate 50 respectively.Preferably, described first quantum dot fluorescence powder 30 and described second quantum dot fluorescence powder 40 are arranged at two relative sides of described first light guide plate 50 respectively, and the corresponding described First Line light source conversion device 13 of difference and described second line source conversion equipment 23.
Described first blue laser 11 and described second blue laser 21 are coupled into described First Line light source conversion device 13 and described second line source conversion equipment 23 respectively, and corresponding pointolite is all converted into line source.The blue light of the different wave length that described first blue laser 11 and the second blue laser 21 are launched respectively excites described first quantum dot fluorescence powder 30 and described second quantum dot fluorescence powder 40 to produce stimulated luminescence respectively, particularly, the first red quantum dot fluorescent powder in described first quantum dot fluorescence powder 30 is excited generation first ruddiness, and the first green quantum dot fluorescent powder is excited generation first green glow; The second red quantum dot fluorescent powder in described second quantum dot fluorescence powder 40 is excited generation second ruddiness, and the second green quantum dot fluorescent powder is excited generation second green glow.Be understandable that, in the first blue light, do not excite the part of the first quantum dot fluorescence powder by direct outgoing, in the second blue light, do not excite the part of the second quantum dot fluorescence powder also by direct outgoing.Thus, the spectrum of light that two relative sides of described first light guide plate 50 are launched is different (spectrum of red, green, blue is all different).Enter described first light guide plate 50 from a side of described first light guide plate 50 through the first ruddiness of the first quantum dot fluorescence powder 30 outgoing, the first green glow, the first blue light, and reflect into the equal light state of area source under the effect of described first light guide plate 50; Then enter described first light guide plate 50 from another relative side of described first light guide plate 50 through the second ruddiness of the second quantum dot fluorescence powder 40 outgoing, the second green glow, the second blue light, and reflect into the equal light state of area source under the effect of described first light guide plate 50.
Refer to Fig. 3, be a kind of liquid crystal indicator provided by the invention, it comprises described quantum dot backlight 100, also comprises blooming 60 and the liquid crystal panel 65 of the top being set in turn in described quantum dot backlight 100.Particularly, described blooming 60 and described liquid crystal panel 65 are all parallel to described first light guide plate 50 and arrange.
Referring to Fig. 4, is the process flow diagram by described liquid crystal indicator display 3D rendering.The blue-light excited first quantum dot fluorescence powder 30 outgoing first ruddiness R1 sent at time period 1, first blue laser 11, the first green glow G1, the first blue light B1, liquid crystal panel 65 shows left-eye image simultaneously; The blue-light excited second quantum dot fluorescence powder 40 outgoing second ruddiness R2 sent at time period 2, second blue laser 21, the second green glow G2, the second blue light B2, liquid crystal panel 65 shows eye image simultaneously; Wherein the interval of time period 1 and time period 2 is less than 0.03s.Namely the left-eye image that liquid crystal panel 65 shows and eye image synthesis form 3D rendering.
Refer to, Fig. 5 is the design sketch utilizing described liquid crystal indicator to show 3D rendering, in figure, light 1 (R1G1B1) can only penetrate the left eyeglass lens of spectral separation glasses, light 2 (R2G2B2) can only penetrate the right eye eyeglass of spectral separation glasses, light 1 shows left-eye image, and light 2 shows left-eye image, just can show 3D rendering like this in human eye.
Embodiment two
Fig. 6 is the side view of the quantum dot backlight 200 that second embodiment of the invention provides, be with the difference of quantum dot backlight 100 in the first embodiment, described optical element comprises and stackedly arranges the second light guide plate 70 and the 3rd light guide plate 75, i.e. the light guide plate more than the first embodiment of optical element described in the present embodiment.Described first quantum dot fluorescence powder 30 and described second quantum dot fluorescence powder 40 are arranged at the side of described second light guide plate 70 and the side of described 3rd light guide plate 75 respectively.Thus, the blue-light excited first quantum dot fluorescence powder 30 outgoing first ruddiness R1 that first blue laser 11 sends, the first green glow G1, the first blue light B1 are coupled to described second light guide plate 70, and the left eye of beholder is entered by described second light guide plate 70, form left-eye image; The blue-light excited second quantum dot fluorescence powder 40 outgoing second ruddiness R2 that second blue laser 21 sends, the second green glow G2, the second blue light B2 are then coupled to the 3rd light guide plate 75, and the right eye of beholder is entered successively by described second light guide plate 70 and described 3rd light guide plate 75, form eye image.
In the present embodiment, described second light guide plate 70 and described 3rd light guide plate 75 parallel stacked.
Preferably, described first quantum dot fluorescence powder 30 and described second quantum dot fluorescence powder 40 are arranged at the side of the same side of described second light guide plate 70 and described 3rd light guide plate 75 respectively, certainly, be not limited thereto, described first quantum dot fluorescence powder 30 and described second quantum dot fluorescence powder 40 also can be arranged at the side of the not homonymy of described second light guide plate 70 and described 3rd light guide plate 75 respectively.
Refer to Fig. 7, be another kind of liquid crystal indicator provided by the invention, it comprises described quantum dot backlight 200, also comprises blooming 60 and the liquid crystal panel 65 of the top being set in turn in described quantum dot backlight 200.Particularly, described blooming 60 and described liquid crystal panel 65 are all parallel to described second light guide plate 70 and described 3rd light guide plate 75 is arranged.
Embodiment three
Refer to Fig. 8, third embodiment of the invention provides a kind of quantum dot backlight 300, it comprises the first light source 10, secondary light source 20, the first quantum dot fluorescence powder 30 with the first spectral band, the second quantum dot fluorescence powder 40 with the second spectral band and diffusion sheet 80, the below of described diffusion sheet 80 is arranged alternately multiple described first quantum dot fluorescence powder 30 and multiple described second quantum dot fluorescence powder 40, and the below of described first quantum dot fluorescence powder 30 and described second quantum dot fluorescence powder 40 respectively correspondence is provided with described first light source 10 and described secondary light source 20.
Be understandable that, in the present embodiment, described optical element comprises diffusion sheet 80, and does not comprise light guide plate.
Identical with first embodiment of the invention is, in the present embodiment, described first light source 10 comprises the first blue laser 11 and the pointolite of described first blue laser 11 is converted to the First Line light source conversion device 13 of line source, and described secondary light source 20 comprises the second blue laser 21 and the pointolite of described second blue laser 21 is converted to the second line source conversion equipment 23 of line source.Described first blue laser 11 and described second blue laser 21 have different wavelength, can be such as 450nm and 473nm, the laser that namely described first blue laser 11 and described second blue laser 21 send be respectively first blue light and the second blue light with different wave length.Described First Line light source conversion device 13 and described second blue laser 21 are respectively used to the pointolite of described first blue laser 11 and described second blue laser 21 to be converted to line source.
Further, the below of described first light source 10 and described secondary light source 20 is also provided with reflectance coating 90.Particularly, described reflectance coating 90 is parallel to described diffuser plate 80 and arranges, namely described first light source 10 and described secondary light source 20 match with described first quantum dot fluorescence powder 30 and described second quantum dot fluorescence powder 40 respectively, and are arranged between described diffuser plate 80 and described reflectance coating 90.Thus, the first blue light B1 that first blue laser 11 (such as wavelength is 450nm) sends is coupled in lambda line First Line light source conversion device 13, the first quantum dot fluorescence powder 30 is excited to launch the first red light R1 and the first green glow G1 from First Line light source conversion device 13 outgoing, in like manner, the second blue light B2 that second blue laser 21 (such as wavelength is 473nm) sends is coupled in the second line source conversion equipment 23, excites the second quantum dot fluorescence powder 40 to launch the second red light R2 and the second green glow G2 from the second line source conversion equipment 23 outgoing.
Refer to Fig. 9, be another kind of liquid crystal indicator provided by the invention, it comprises described quantum dot backlight 300, also comprises blooming 60 and the liquid crystal panel 65 of the top being set in turn in described quantum dot backlight 300.Particularly, described blooming 60 and described liquid crystal panel 65 are all parallel to described diffuser plate 80 and described reflectance coating 90 is arranged.
Be understandable that, the liquid crystal indicator that first, second embodiment of the present invention provides is side-edge type backlight, and the liquid crystal indicator that the 3rd the present embodiment provides is then direct-light-type backlight.
Relative to prior art, quantum dot backlight 100,200,300 provided by the invention utilizes the first quantum dot fluorescence powder 30 and the second quantum dot fluorescence powder 40 of different spectral band, launch the first spectral band light and the second spectral band light respectively and entered left eye and the right eye of beholder by corresponding optical element (light guide plate or diffusion barrier) respectively, can effectively make the liquid crystal indicator with described quantum dot backlight 100,200 or 300 realize the 3D display of spectral separation.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a quantum dot backlight, it is characterized in that, comprise: the first light source, secondary light source, there is the first quantum dot fluorescence powder of the first spectral band, there is the second quantum dot fluorescence powder and optical element of the second spectral band, the first light that described first light source sends excites described first quantum dot fluorescence powder to produce the first spectral band light, and the left eye of beholder is entered through described optical element, the second light that described secondary light source sends excites described second quantum dot fluorescence powder to produce the second spectral band light, and enters the right eye of beholder through described optical element.
2. quantum dot backlight as claimed in claim 1, it is characterized in that, described optical element comprises the first light guide plate, and described first quantum dot fluorescence powder and described second quantum dot fluorescence powder are arranged at the different sides of described first light guide plate respectively.
3. quantum dot backlight as claimed in claim 2, it is characterized in that, described first quantum dot fluorescence powder and described second quantum dot fluorescence powder are arranged at two relative sides of described first light guide plate respectively.
4. quantum dot backlight as claimed in claim 1, it is characterized in that, described optical element comprises and stackedly arranges the second light guide plate and the 3rd light guide plate, and described first quantum dot fluorescence powder and described second quantum dot fluorescence powder are arranged at the side of described second light guide plate and the side of described 3rd light guide plate respectively.
5. quantum dot backlight as claimed in claim 4, it is characterized in that, described first quantum dot fluorescence powder and described second quantum dot fluorescence powder are arranged at the side of the same side of described second light guide plate and described 3rd light guide plate respectively.
6. quantum dot backlight as claimed in claim 1, it is characterized in that, described optical element comprises diffusion sheet, the below of described diffusion sheet is arranged alternately multiple described first quantum dot fluorescence powder and multiple described second quantum dot fluorescence powder, and the below of described first quantum dot fluorescence powder and described second quantum dot fluorescence powder respectively correspondence is provided with described first light source and described secondary light source.
7. quantum dot backlight as claimed in claim 6, it is characterized in that, the below of described first light source and described secondary light source is also provided with reflectance coating, and described reflectance coating is parallel to described diffusion barrier and arranges.
8. the quantum dot backlight as described in any one of claim 1 ~ 7, it is characterized in that, described first light source comprises the first blue laser and the pointolite of described first blue laser is converted to the First Line light source conversion device of line source, and described secondary light source comprises the second blue laser and the pointolite of described second blue laser is converted to the second line source conversion equipment of line source.
9. the quantum dot backlight as described in any one of claim 1 ~ 7, it is characterized in that, containing the first red quantum dot fluorescent powder and the first green quantum dot fluorescent powder in described first quantum dot fluorescence powder, containing the second red quantum dot fluorescent powder and the second green quantum dot fluorescent powder in described second quantum dot fluorescence powder, described first red quantum dot fluorescent powder and described second red quantum dot fluorescent powder are excited to launch respectively the ruddiness of different spectrum, described first green quantum dot fluorescent powder and described second green quantum dot fluorescent powder are excited to launch respectively the ruddiness of different spectrum.
10. a liquid crystal indicator, is characterized in that, comprises the quantum dot backlight as described in any one of claim 1 ~ 8 and the blooming of the top of quantum dot backlight as described in being set in turn in and liquid crystal panel.
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| CN109539188A (en) * | 2017-07-31 | 2019-03-29 | 深圳光峰科技股份有限公司 | A kind of light source |
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| CN201666514U (en) * | 2010-03-12 | 2010-12-08 | 中强光电股份有限公司 | Backlight module |
| CN102844608A (en) * | 2010-04-15 | 2012-12-26 | 三菱电机株式会社 | Backlight device and liquid crystal display apparatus |
| US20120188473A1 (en) * | 2011-01-25 | 2012-07-26 | Chunghwa Picture Tubes, Ltd. | Stereo display device, backlight module and light source driving method thereof |
| CN102685538A (en) * | 2011-03-16 | 2012-09-19 | 三星电子株式会社 | 3d image display apparatus, 3d glasses, and driving method thereof |
| CN102692721A (en) * | 2012-05-07 | 2012-09-26 | 上海交通大学 | 2D/3D (two-dimensional/three-dimensional) switchable autostereoscopic display device and method |
| CN103672618A (en) * | 2013-12-13 | 2014-03-26 | 京东方科技集团股份有限公司 | Laser light source and displaying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107238970A (en) * | 2017-06-12 | 2017-10-10 | 南京第五十五所技术开发有限公司 | A kind of array laser quantum dot rod backlight display module device |
| CN109539188A (en) * | 2017-07-31 | 2019-03-29 | 深圳光峰科技股份有限公司 | A kind of light source |
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Application publication date: 20160330 |