CN110320707A - A kind of Backlight source and liquid crystal display device - Google Patents
A kind of Backlight source and liquid crystal display device Download PDFInfo
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- CN110320707A CN110320707A CN201910600349.1A CN201910600349A CN110320707A CN 110320707 A CN110320707 A CN 110320707A CN 201910600349 A CN201910600349 A CN 201910600349A CN 110320707 A CN110320707 A CN 110320707A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 44
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims description 33
- 239000000843 powder Substances 0.000 claims description 20
- 230000003595 spectral effect Effects 0.000 claims description 2
- 208000003464 asthenopia Diseases 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 18
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010033675 panniculitis Diseases 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000007920 subcutaneous administration Methods 0.000 description 2
- 210000004304 subcutaneous tissue Anatomy 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 208000005494 xerophthalmia Diseases 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—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
- G02F1/133602—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
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Led Device Packages (AREA)
Abstract
The embodiment of the present invention provides a kind of Backlight source and liquid crystal display device, and backlight includes: substrate；Multiple light emitting diodes, positioned at the side of the substrate, the multiple light emitting diode includes the visible light emitting diode for emitting visible light and the far-infrared LED for emitting far red light.The embodiment of the present invention provides a kind of Backlight source and liquid crystal display device, to realize the asthenopia for alleviating user.
Description
Technical field
The present embodiments relate to display technology more particularly to a kind of Backlight source and liquid crystal display devices.
Background technique
Mobile phone and computer have become for a part indispensable in daily life, but prolonged use mobile phone
Human eye can be caused with computer to bring the diseases such as xerophthalmia compared with strong stimulation, threaten human health.Currently, eliminate mobile phone and
The main path that the display screen of computer negatively affects human eye is removal blue light.But the means of existing removal blue light can be because go
In addition to high-energy blue light and influence image quality, and remove blue light the process is more complicated, price is higher, while its reality
For effect also than less desirable, the blue light generally absorbed is 20% or so of totality, blue light cannot be entirely prevented to enter human eye.
Due to that can not enter human eye by entirely preventing blue light, the display screen of mobile phone and computer will negatively affect human eye,
User is set easily to generate asthenopia.
Summary of the invention
The embodiment of the present invention provides a kind of Backlight source and liquid crystal display device, to realize the asthenopia for alleviating user.
In a first aspect, the embodiment of the present invention provides a kind of backlight, comprising:
Substrate；
Multiple light emitting diodes, positioned at the side of the substrate, the multiple light emitting diode includes visible for emitting
The visible light emitting diode of light and far-infrared LED for emitting far red light.
Optionally, the visible light emitting diode includes blue LED；
The backlight further includes yellow fluorescent powder, and the yellow fluorescent powder is located at the blue LED far from institute
Substrate side is stated, the light that the blue LED issues irradiates the yellow fluorescent powder and issues white light.
Optionally, the backlight further includes encapsulated layer, and the encapsulated layer is located at the light emitting diode away from the base
Plate side；
The yellow fluorescent powder is distributed in the encapsulated layer.
Optionally, multiple visible light emitting diodes include the equal red light emitting diodes of quantity, green emitting
Diode and blue LED；The red light emitting diodes, the green LED and the blue-light-emitting two
The light that pole pipe issues is mixed to form white light.
Optionally, the quantity of the blue LED is greater than the quantity of the far-infrared LED.
Second aspect, the embodiment of the present invention provide a kind of liquid crystal display device, including backlight described in first aspect；
The liquid crystal display device further includes the liquid crystal display panel positioned at the backlight light emission side；
The liquid crystal display panel includes the pixel of multiple array arrangements, and each pixel includes that at least one is visible
Light luminous zone, the visible light luminous zone are emitted visible light；At least partly described pixel includes far-infrared light-emitting area, described remote red
Outer luminous zone is emitted far red light.
Optionally, the area of the visible light luminous zone is greater than the area in the far-infrared light-emitting area.
Optionally, the visible light luminous zone is rectangle, and the far-infrared light-emitting area is located at the visible light luminous zone
Long side side；Alternatively, the far-infrared light-emitting area is located at the short side side of the visible light luminous zone；Alternatively, described remote red
Outer luminous zone surrounds at least one described visible light luminous zone one week.
Optionally, the liquid crystal display panel includes filter layer, and the filter layer includes being located at the visible light to send out
Feux rouges optical filter, green light optical filter, blue filter and the far infrared optical filter in light area, the feux rouges optical filter are used for by red
Optical band, the green light optical filter are used for through green light band, and the blue filter is for passing through blue wave band；It is described remote red
Outer optical filter is located at the far infrared filter area, for penetrating far red light and filtering out visible light.
Backlight provided in an embodiment of the present invention includes far-infrared LED, and far-infrared LED emits remote
For alleviating, visual fatigue, promote blood flow has obvious effect to infrared light.The emission wavelength of far-infrared LED is for example
4 μm can be greater than and less than 14 μm.The far red light that wavelength is in 4um-14um is referred to as " light of life ", because it can be by human body
Absorb, cause molecular vibration in human body, generate thermal response, thus improve subcutaneous tissue temperature, the expansion for promoting subcutaneous capilary,
Accelerate the flowing of blood, and then improves human metabolism's rate.The embodiment of the present invention provides a kind of backlight, is alleviated with realizing
The asthenopia of user.
Detailed description of the invention
Fig. 1 is a kind of overlooking structure diagram of backlight provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the section structure of the AA ' along Fig. 1；
Fig. 3 is the schematic diagram of the section structure of another backlight provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of the section structure of another backlight provided in an embodiment of the present invention；
Fig. 5 is the overlooking structure diagram of another backlight provided in an embodiment of the present invention；
Fig. 6 is the overlooking structure diagram of another backlight provided in an embodiment of the present invention；
Fig. 7 is a kind of overlooking structure diagram of liquid crystal display device provided in an embodiment of the present invention；
Fig. 8 is the schematic diagram of the section structure of the BB ' along Fig. 7；
Fig. 9 is the schematic diagram of the section structure of another liquid crystal display device provided in an embodiment of the present invention；
Figure 10 is a kind of plan structure enlarged drawing of pixel provided in an embodiment of the present invention；
Figure 11 is the plan structure enlarged drawing of another pixel provided in an embodiment of the present invention；
Figure 12 is the plan structure enlarged drawing of another pixel provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of overlooking structure diagram of backlight provided in an embodiment of the present invention, and Fig. 2 is that AA ' is cutd open along Fig. 1
Face structural schematic diagram, with reference to Fig. 1 and Fig. 2, backlight 100 include substrate 120 and multiple light emitting diodes 110, it is multiple shine two
Pole pipe 110 is located at the side of substrate 120, and multiple light emitting diodes 110 include the visible light light-emitting diodes for emitting visible light
Pipe 111 and far-infrared LED 112 for emitting far red light.
Backlight provided in an embodiment of the present invention includes far-infrared LED, and far-infrared LED emits remote
For alleviating, visual fatigue, promote blood flow has obvious effect to infrared light.The emission wavelength of far-infrared LED is for example
4 μm can be greater than and less than 14 μm.The far red light that wavelength is in 4um-14um is referred to as " light of life ", because it can be by human body
Absorb, cause molecular vibration in human body, generate thermal response, thus improve subcutaneous tissue temperature, the expansion for promoting subcutaneous capilary,
Accelerate the flowing of blood, and then improves human metabolism's rate.The embodiment of the present invention provides a kind of backlight, is alleviated with realizing
The asthenopia of user.
Optionally, with reference to Fig. 1 and Fig. 2, it is seen that light-emitting diode 111 includes blue LED 1111, blue hair
Optical diode 1111 can emit blue light.Backlight 100 further includes yellow fluorescent powder 130, and yellow fluorescent powder 130 is located at blue hair
Far from 120 side of substrate, the light irradiation yellow fluorescent powder 130 that blue LED 1111 issues issues white optical diode 1111
Light.
Optionally, with reference to Fig. 1 and Fig. 2, backlight 100 further includes encapsulated layer 140, and encapsulated layer 140 is located at light emitting diode
110 deviate from 120 side of substrate, and yellow fluorescent powder 130 is distributed in encapsulated layer 140.Encapsulated layer 140 can for example use silica gel system
Make.Encapsulated layer 140 covers multiple light emitting diodes 110 (i.e. blue LED 1111 and far-infrared LED 112)
And part substrate 120, encapsulated layer 140 wrap up light emitting diode 110 with substrate 120, protect light emitting diode 110 from outer
Boundary's damage.
Fig. 3 is the schematic diagram of the section structure of another backlight provided in an embodiment of the present invention, with reference to Fig. 3, backlight 100
Including phosphor powder layer 131 and encapsulated layer 140, yellow fluorescent powder 130 is distributed in phosphor powder layer 131.Phosphor powder layer 131 is located at can
The light emission side of light-exposed light emitting diode 111 (i.e. blue LED 1111), phosphor powder layer 131 are located at visible light light-emitting diodes
Between pipe 111 and encapsulated layer 140.The not set yellow fluorescent powder 130 of the light emission side of far-infrared LED 112 and phosphor powder layer
131, therefore, yellow fluorescent powder 130 will not generate absorption to the far red light that far-infrared LED 112 issues, and enhance
Far red light reaches the brightness of human eye.
Optionally, referring to figs. 2 and 3, the quantity of blue LED 1111 is greater than far-infrared LED 112
Quantity.More blue LED 1111 is set, less far-infrared LED 112 is set, ensure that backlight
100 have enough spaces to accommodate visible light emitting diode 111, to provide the illumination of enough brightness for liquid crystal display panel
Light beam.
Fig. 4 is the schematic diagram of the section structure of another backlight provided in an embodiment of the present invention, multiple visible with reference to Fig. 4
Light-emitting diode 110 includes equal red light emitting diodes 1112, green LED 1113 and the blue-light-emitting of quantity
Diode 1111.Red light emitting diodes 1112 emit feux rouges, and green LED 1113 emits green light, two pole of blue-light-emitting
Pipe 1111 emits blue light.Red light emitting diodes 1112, green LED 1113 and blue LED 1111 issue
Light be mixed to form white light.
Optionally, with reference to Fig. 4, backlight 100 further includes encapsulated layer 140, and encapsulated layer 140 is located at the back of light emitting diode 110
From 120 side of substrate.Encapsulated layer 140 can be for example made of silicone.It is (red that encapsulated layer 140 covers multiple light emitting diodes 110
Color light emitting diode 1112, green LED 1113, blue LED 1111 and far-infrared LED 112)
And part substrate 120, encapsulated layer 140 wrap up light emitting diode 110 with substrate 120, protect light emitting diode 110 from outer
Boundary's damage.
Optionally, with reference to Fig. 4, the quantity of blue LED 1111 is greater than the quantity of far-infrared LED 112.
Since red light emitting diodes 1112, green LED 1113 and blue LED 1111 are equal, red hair
The quantity of optical diode 1112 and green LED 1113 is greater than the quantity of far-infrared LED 112.It is arranged more
Red light emitting diodes 1112, green LED 1113 and blue LED 1111, less far infrared is set
Light emitting diode 112 ensure that backlight 100 has enough spaces to accommodate red light emitting diodes 1112, green emitting two
Pole pipe 1113 and blue LED 1111, to provide the illuminating bundle of enough brightness for liquid crystal display panel.
Fig. 5 is the overlooking structure diagram of another backlight provided in an embodiment of the present invention, with reference to Fig. 1 and Fig. 5, backlight
Source 100 further includes light guide plate 150, and multiple light emitting diodes 110 are between substrate 120 and light guide plate 150, multiple light-emitting diodes
Pipe 110 is located at the back side of light guide plate 150, and the light that multiple light emitting diodes 110 are emitted is irradiated into light guide plate 150, and by leading
Tabula rasa 150 is emitted to liquid crystal display panel after homogenizing, and provides uniform illuminating bundle for liquid crystal display panel.Backlight shown in Fig. 5
Source 100 is direct-light-type backlight.
Fig. 6 is the overlooking structure diagram of another backlight provided in an embodiment of the present invention, with reference to Fig. 6, backlight 100
It further include light guide plate 150, multiple light emitting diodes 110 are located at the side of light guide plate 150, what multiple light emitting diodes 110 were emitted
Light is irradiated into light guide plate 150, and is emitted to liquid crystal display panel after being homogenized by light guide plate 150, is mentioned for liquid crystal display panel
For uniform illuminating bundle.Backlight 100 shown in Fig. 6 is side-edge type backlight.
Fig. 7 is a kind of overlooking structure diagram of liquid crystal display device provided in an embodiment of the present invention, and Fig. 8 is along Fig. 7
The schematic diagram of the section structure of BB ', with reference to Fig. 7 and Fig. 8, liquid crystal display device includes the backlight 100 in any of the above-described embodiment.
Liquid crystal display device further includes the liquid crystal display panel 200 positioned at 100 light emission side of backlight.Liquid crystal display panel 200 includes more
The pixel 300 of a array arrangement, each pixel 300 include at least one visible light luminous zone 310, it is seen that light luminous zone 310
It is emitted visible light.At least partly pixel 300 includes far-infrared light-emitting area 320, and far-infrared light-emitting area 320 is emitted far red light.?
In some embodiments, it includes far-infrared light-emitting area 320 that partial pixel 300, which can be set, and another part pixel 300 does not include remote
Infraluminescence area 320.In other embodiments, it includes far-infrared light-emitting area 320 that whole pixels 300, which can be set,.
Illustratively, with reference to Fig. 8, pixel 300 includes three visible light luminous zones 310, respectively emitting red light area 311,
Green emitting area 312 and blue-light-emitting area 313.Emitting red light area 311 is emitted feux rouges, and green emitting area 312 is emitted green light, blue
Luminous zone 313 is emitted blue light.
Liquid crystal display device provided in an embodiment of the present invention includes the backlight in above-described embodiment, has above-mentioned backlight
Beneficial effect, that is, realize alleviate user asthenopia.
Optionally, with reference to Fig. 8, liquid crystal display panel 200 includes filter layer 210, and filter layer 210 includes positioned at visible
The feux rouges optical filter 2111 of light luminous zone 310,212 and of green light optical filter 2112, blue filter 2113 and far infrared optical filter
Far infrared optical filter 212, feux rouges optical filter 2111 are used for through red spectral band, and green light optical filter 2112 is used to pass through green light wave
Section, blue filter 2113 is for passing through blue wave band.Far infrared optical filter 212 is located at far infrared filter area 320, for penetrating
Far red light simultaneously filters out visible light.It include white light and far infrared light, white light and far infrared in the light that backlight 100 issues
Light becomes feux rouges after feux rouges optical filter 2111, and white light and far infrared light becomes green light after green light optical filter 2112, white
Light and far red light become blue light after blue filter 2113, and white light and far infrared light is after far infrared optical filter 212
Become the sightless far red light of human eye.
Optionally, with reference to Fig. 8, liquid crystal display panel 200 further include array substrate 230, color membrane substrates 260 and be located at battle array
Liquid crystal layer 250 between column substrate 230 and color membrane substrates 260.Liquid crystal display panel 200 further includes the first polaroid 220, second
Polaroid 270 and driving circuit 240.Driving circuit 240 drives the rotation of liquid crystal molecule in liquid crystal layer 250, partially with cooperation first
The light passing amount of mating plate 220 and the second polaroid 270 control liquid crystal display panel, realizes that image is shown.
Fig. 9 is the schematic diagram of the section structure of another liquid crystal display device provided in an embodiment of the present invention, with reference to Fig. 9, liquid
LCD panel 200 includes filter layer 210, and filter layer 210 includes the feux rouges optical filter positioned at visible light luminous zone 310
2111, green light optical filter 2112, blue filter 2113 and far infrared optical filter 212, feux rouges optical filter 2111 are used for by red
Optical band, green light optical filter 2112 are used for through green light band, and blue filter 2113 is for passing through blue wave band.Filter layer
210 in the partially transparent of far infrared filter area 320, and filter layer 210 is in the not set far infrared optical filter of far infrared filter area 320
212.Filter layer 210 is illustrated in the part of far infrared filter area 320 in Fig. 9 with dotted line frame.Filter layer 210 is in far infrared
Non-selectivity can also can be set in the part of far infrared filter area 320 with hollow out, filter layer 210 in the part of filter area 320
The transparent material of absorption, specifically can be depending on product demand, and it is not limited in the embodiment of the present invention.
Optionally, with reference to Fig. 9, can choose has polarization effect to visible light but does not polarize effect for far red light
The first polaroid 220, the second polaroid 270 of fruit, and the liquid crystal molecule for controlling far infrared filter area 320 cooperates the first polaroid
220 and second polaroid 270 stop the outgoing of visible light completely, and far infrared filter area 320 is made to be emitted far red light.
Optionally, with reference to Fig. 8 and Fig. 9, it is seen that the area of light luminous zone 310 is greater than the area in far-infrared light-emitting area 320.If
The area for setting visible light luminous zone 310 is larger, and the area in far-infrared light-emitting area 320 is smaller, ensure that liquid crystal display panel 200 has
Enough areas emit visible light, ensure that the normal luminescence display function of liquid crystal display device.
Figure 10 is a kind of plan structure enlarged drawing of pixel provided in an embodiment of the present invention, with reference to Figure 10, it is seen that light shines
Area 310 is rectangle.Far-infrared light-emitting area 320 is located at the long side side of visible light luminous zone 310.
Illustratively, with reference to Figure 10, three visible light luminous zones 310 are respectively emitting red light area 311, green emitting area
312 and blue-light-emitting area 313.Emitting red light area 311, green emitting area 312 and blue-light-emitting area 313 are along visible light luminous zone
310 short side extending direction is arranged successively in a row, and far-infrared light-emitting area 320 is located at the long side side in emitting red light area 311, far
Infraluminescence area 320 is located at emitting red light area 311 far from 312 side of green emitting area.
Figure 11 is the plan structure enlarged drawing of another pixel provided in an embodiment of the present invention, with reference to Figure 11, it is seen that light hair
Light area 310 is rectangle.Far-infrared light-emitting area 320 is located at the short side side of visible light luminous zone 310.
Illustratively, with reference to Figure 11, three visible light luminous zones 310 are respectively emitting red light area 311, green emitting area
312 and blue-light-emitting area 313.Emitting red light area 311, green emitting area 312 and blue-light-emitting area 313 are along visible light luminous zone
310 short side extending direction is arranged successively in a row.Far-infrared light-emitting area 320 is located at emitting red light area 311, green emitting area
312 and blue-light-emitting area 313 short side the same side.
Figure 12 is the plan structure enlarged drawing of another pixel provided in an embodiment of the present invention, with reference to Figure 12, far infrared hair
Light area 320 surrounds at least one visible light luminous zone 310 1 weeks.
Illustratively, with reference to Figure 12, three visible light luminous zones 310 are respectively emitting red light area 311, green emitting area
312 and blue-light-emitting area 313.Emitting red light area 311, green emitting area 312 and blue-light-emitting area 313 are along visible light luminous zone
310 short side extending direction is arranged successively in a row, and far-infrared light-emitting area 320 surrounds emitting red light area 311, green emitting area
312 and blue-light-emitting area 313 1 weeks.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (9)
1. a kind of backlight characterized by comprising
Substrate；
Multiple light emitting diodes, positioned at the side of the substrate, the multiple light emitting diode includes for emitting visible light
Visible light emitting diode and far-infrared LED for emitting far red light.
2. backlight according to claim 1, which is characterized in that the visible light emitting diode includes blue-light-emitting two
Pole pipe；
The backlight further includes yellow fluorescent powder, and the yellow fluorescent powder is located at the blue LED far from the base
Plate side, the light that the blue LED issues irradiate the yellow fluorescent powder and issue white light.
3. backlight according to claim 2, which is characterized in that the backlight further includes encapsulated layer, the encapsulated layer
Deviate from the substrate side positioned at the light emitting diode；
The yellow fluorescent powder is distributed in the encapsulated layer.
4. backlight according to claim 1, which is characterized in that multiple visible light emitting diodes include quantity phase
Deng red light emitting diodes, green LED and blue LED；The red light emitting diodes, the green
The light that light emitting diode and the blue LED issue is mixed to form white light.
5. according to backlight described in claim 2 or 4, which is characterized in that the quantity of the blue LED is greater than
The quantity of the far-infrared LED.
6. a kind of liquid crystal display device, which is characterized in that including the described in any item backlights of claim 1-5；
The liquid crystal display device further includes the liquid crystal display panel positioned at the backlight light emission side；
The liquid crystal display panel includes the pixel of multiple array arrangements, and each pixel includes at least one visible light hair
Light area, the visible light luminous zone are emitted visible light；At least partly described pixel includes far-infrared light-emitting area, the far infrared hair
Light area is emitted far red light.
7. liquid crystal display device according to claim 6, which is characterized in that the area of the visible light luminous zone is greater than institute
State the area in far-infrared light-emitting area.
8. with according to liquid crystal display device as claimed in claim 6, which is characterized in that the visible light luminous zone is rectangle, institute
State the long side side that far-infrared light-emitting area is located at the visible light luminous zone；Alternatively, the far-infrared light-emitting area can described in
The short side side of light-exposed luminous zone；Alternatively, the far-infrared light-emitting area surrounds at least one described visible light luminous zone one week.
9. liquid crystal display device according to claim 6, which is characterized in that the liquid crystal display panel includes optical filter
Layer, the filter layer include positioned at the feux rouges optical filter of the visible light luminous zone, green light optical filter, blue filter and remote
Infrared fileter, the feux rouges optical filter are used for through red spectral band, and the green light optical filter is used for through green light band, described
Blue filter is for passing through blue wave band；The far infrared optical filter is located at the far infrared filter area, for through remote red
Outer light simultaneously filters out visible light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600349.1A CN110320707A (en) | 2019-07-04 | 2019-07-04 | A kind of Backlight source and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600349.1A CN110320707A (en) | 2019-07-04 | 2019-07-04 | A kind of Backlight source and liquid crystal display device |
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| CN113848663A (en) * | 2020-06-10 | 2021-12-28 | 三赢科技（深圳）有限公司 | Lens module testing device |
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