CN109856860A - A kind of liquid crystal display die set and display device - Google Patents
A kind of liquid crystal display die set and display device Download PDFInfo
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- CN109856860A CN109856860A CN201910252279.5A CN201910252279A CN109856860A CN 109856860 A CN109856860 A CN 109856860A CN 201910252279 A CN201910252279 A CN 201910252279A CN 109856860 A CN109856860 A CN 109856860A
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Abstract
The embodiment of the invention discloses a kind of liquid crystal display die set and display devices.Wherein, liquid crystal display die set includes: the backlight set gradually, the first polaroid, array substrate, liquid crystal layer, color membrane substrates and the second polaroid；It include multiple LED light sources in backlight, for issuing white light；At least one LED light source includes purple LED chip；Colored filter in color membrane substrates includes the pixel unit area of array arrangement, each pixel unit area includes red sub-pixel area, green sub-pixels area, blue subpixels area and white sub-pixels area, and the purple light that purple LED chip is issued is projected by white sub-pixels area.Technical solution provided in an embodiment of the present invention can solve the problems, such as that existing liquid crystal display die set colour rendering is poor.
Description
Technical field
The present embodiments relate to organic light emitting display technical field more particularly to a kind of liquid crystal display die set and display dresses
It sets.
Background technique
Largely liquid crystal display panel (Liquid Crystal Display, LCD) is used in electronic display unit at present.By
Do not have luminous function in LCD itself, needs to be arranged backlight module below liquid crystal display panel to provide liquid crystal display panel
Required backlight.
LCD mainly uses Organic Light Emitting Diode (Organic Light-Emitting Diode, OLED), as backlight
Source, multiple OLED form area source by equal light action.The optical principle of traditional OLED is the blue light issued using blue chip
Green emitting phosphor is excited to issue green light, and excitated red fluorescent powder issues feux rouges, eventually by the blue light for issuing blue chip,
And the feux rouges and green light of fluorescent powder sending are mixed, and white light is obtained.
But the optical principle of tradition OLED formed white light spectrum compared with solar spectrum, be it is incomplete, continuously
Property is poor, then the colour rendering of the light finally appeared by liquid crystal display die set is poor, i.e., liquid crystal display can experience human eye
Color reducing degree it is poor so that the light quality of liquid crystal display is lower.
Summary of the invention
The present invention provides a kind of liquid crystal display die set and display device, with solve existing liquid crystal display die set colour rendering compared with
The problem of difference.
In a first aspect, the embodiment of the invention provides a kind of liquid crystal display die sets, comprising: the backlight that sets gradually,
One polaroid, array substrate, liquid crystal layer, color membrane substrates, the second polaroid；
It include multiple LED light sources in the backlight, for issuing white light；At least one LED light source includes purple LED core
Piece；
Colored filter in the color membrane substrates includes the pixel unit area of array arrangement, each pixel unit area Jun Bao
Red sub-pixel area, green sub-pixels area, blue subpixels area and white sub-pixels area are included, so that the purple LED chip
The purple light of sending can be projected by the white sub-pixels area.
Optionally, the wave-length coverage of the purple light of the sending of the purple LED chip is 370~410nm.
Optionally, at least one LED light source includes purple LED chip and the fluorescence conversion for covering the purple LED chip
Layer；The fluorescence conversion layer is doped with red fluorescence powder, green emitting phosphor and blue colour fluorescent powder.
Optionally, the blue colour fluorescent powder is Ca3(PO4)5Cl:Eu system and/or BaxCayMgAl10O17: in Eu system
One or more materials；Wherein, x, y are positive number；The red fluorescence powder is one of nitride and/or fluoride or a variety of
Material；The green emitting phosphor is one of β-sialon, silicate and/or Mg aluminate or multiple material.
It optionally, include purple LED chip, blue-light LED chip and the covering purple LED at least one LED light source
The fluorescence conversion layer of chip and the blue-light LED chip；The fluorescence conversion layer is doped with green emitting phosphor and red fluorescence powder.
Optionally, the wave-length coverage of the blue light of the sending of the blue-light LED chip is 460~470nm.
Optionally, the red fluorescence powder is one of nitride and/or fluoride or multiple material；The green is glimmering
Light powder is one of β-sialon, silicate and/or Mg aluminate or multiple material.
Optionally, the purple LED chip and the blue-light LED chip are connected in parallel；The driving of the purple LED chip
Current range is 20~60ma；The drive current range of the blue-light LED chip is 180~760ma.
Optionally, the quality of the fluorescent powder of purple LED chip excitation account for the proportional region of fluorescent powder gross mass be 4~
6%.
Optionally, the range of the green emitting phosphor and red fluorescence powder mass values is 94~96%.
Optionally, at least one LED light source includes purple LED chip, blue-light LED chip, green LED chip and covering institute
State the fluorescence conversion layer of purple LED chip, the green LED chip and the blue-light LED chip；The fluorescence conversion layer doping
There is red fluorescence powder.
Optionally, the wave-length coverage of the blue light of the sending of the blue-light LED chip is 460~470nm；The green light LED
The wave-length coverage of the green light of the sending of chip is 520~522.5nm.
Optionally, at least one LED light source includes purple LED chip, blue-light LED chip, green LED chip and feux rouges
LED chip.
Optionally, the wave-length coverage of the blue light of the sending of the blue-light LED chip is 460~470nm；The green light LED
The wave-length coverage of the green light of the sending of chip is 520~522.5nm；The wavelength model of the feux rouges of the sending of the red LED chip
It encloses for 620~650nm.
Second aspect, the embodiment of the invention also provides a kind of display devices, including described in any embodiment of that present invention
Liquid crystal display die set.
Liquid crystal display die set and display device provided in an embodiment of the present invention, liquid crystal display die set include backlight, first
Polaroid, array substrate, liquid crystal layer, color membrane substrates and the second polaroid, backlight are used to provide white back for liquid crystal display
Light, interior backlight includes multiple LED light sources, for issuing white light respectively, wherein at least one LED light source includes purple LED core
Piece then increases purple light, simulated solar irradiation in the spectrum of the finally formed white light of the backlight, so that white-light spectrum more adds
It is whole, and fluorescent material can be excited to issue the light of other colors by purple LED chip, enhance the continuity of white-light spectrum,
And then the colour rendering of liquid crystal display die set is enhanced, so that liquid crystal display die set shows that color is more abundant, in addition, color membrane substrates
In the pixel unit area of interior colored filter other than it can penetrate feux rouges, blue light and the region of green light, there is also can be straight
Meeting the white sub-pixels area through white light, then the capable of emitting purple light of final liquid crystal display die set, facilitates human body synthesis of vitamin d,
Promote absorption of the human body to calcium, promotes the health status of human body.
Detailed description of the invention
Fig. 1 is the spectrogram of different light sources in the prior art；
Fig. 2 is a kind of structural schematic diagram of liquid crystal display die set provided in an embodiment of the present invention；
Fig. 3 is the plane structure chart of the colored filter in Fig. 2 in liquid crystal display die set；
Fig. 4 is another plane structure chart of the colored filter in Fig. 2 in liquid crystal display die set；
Fig. 5 is the spectrogram that a kind of liquid crystal display die set provided in this embodiment emits beam；
Fig. 6 is a kind of structural schematic diagram of LED light source provided in an embodiment of the present invention；
Fig. 7 is the spectrogram of liquid crystal display die set provided in an embodiment of the present invention Yu traditional liquid crystal display module；
Fig. 8 is the structural schematic diagram of another LED light source provided in an embodiment of the present invention；
Fig. 9 is the structural schematic diagram of another LED light source provided in an embodiment of the present invention；
Figure 10 is the structural schematic diagram of another LED light source provided in an embodiment of the present invention；
Figure 11 is the structural schematic diagram of another LED light source provided in an embodiment of the present invention；
Figure 12 is a kind of structural schematic diagram of display device 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.
For the ease of present invention is described, the principle of luminosity of Conventional LED light sources is introduced first, such as background skill
Described in art, LED light source frequently includes blue LED die, and is obtained by the blue light excitated red fluorescent powder that blue LED die issues
To feux rouges, green emitting phosphor is excited to obtain green light, then feux rouges, green light and blue light obtain white light by colour mixture, but this method obtains
To the spectrum of white light lack purple light part, and it is imperfect, cause last liquid crystal display die set to show that the colour rendering of image is poor.
Wherein, spectrum is polychromatic light after dispersion system is divided, and resolves into a series of monochromatic light, and successively arrange according to wavelength size
One light belt of cloth shows sunlight in Fig. 1 as shown in Figure 1, Fig. 1 is the spectrogram of different light sources in the prior art
The spectrogram of the different light sources of tetra- kinds of SUNLIGHT, LED chip, incandescent lamp INCANDESCENT and energy-saving lamp CFL, it is known that, it removes
There is certain short part in the spectrum of sunlight, the spectrum of other artificial lights, sunlight SUNLIGHT just has extremely
Broad continuous spectrum, and the white light that above-mentioned blue LED die excitated fluorescent powder obtains does not have a purple wave band, and blue light ingredient compared with
Height, then the light blue light ingredient finally issued by liquid crystal display die set is higher, does not also have purple wave band, and colour rendering is poor, and because
For the higher reason of blue light ingredient, in the case of long-term use, the crystalline lens that blue light can penetrate human eye reaches retina, adds
The oxidation of fast macular area cell, causes optical damage to it.
To solve the problems, such as that liquid crystal display die set colour rendering is poor, the embodiment of the present invention provides a kind of liquid crystal display die set,
Referring to figs. 2 and 3, Fig. 2 is a kind of structural schematic diagram of liquid crystal display die set provided in an embodiment of the present invention, and Fig. 3 is liquid in Fig. 2
The plane structure chart of colored filter in brilliant display module, the liquid crystal display die set include:
Backlight 11, the first polaroid 12, array substrate 13, the liquid crystal layer 14, color membrane substrates 15 and second set gradually
Polaroid 16；
It include multiple LED light sources 111 in backlight 11, for issuing white light；At least one LED light source 111 includes purple light
LED chip 112；
Colored filter 151 in color membrane substrates 15 includes the pixel unit area 152 of array arrangement, each pixel unit area
152 include red sub-pixel area R, green sub-pixels area G, blue subpixels area B and white sub-pixels area W, so that purple light
The purple light that LED chip 112 issues can be projected by white sub-pixels area W.
Array substrate 13, liquid crystal layer 14 and color membrane substrates 15 constitute the basic structure of liquid crystal display panel, backlight 11
For providing luminous backlight for liquid crystal display panel, backlight is generally white light.Multiple LED light sources are provided in backlight 11
111, each LED light source 111 issues white light, and multiple LED light sources 111 shine uniformly by light so that backlight 11 is formed
Area source.Wherein, at least exist in a LED light source 111 and be provided with purple LED chip (not shown in figure 1), then by equal
The spectrum of the white light of light also includes purple light wave band, to enhance the integrality and continuity of the spectrum of white light, so that spectrum is covered
Color it is more extensive, be more nearly with sunlight spectrum, be conducive to improve liquid crystal display die set colour rendering, liquid crystal display die set
The color of display is richer.
Why liquid crystal display die set can be imaged, and liquid crystal molecule is utilized can occur fixed deflection under specific electric field
Principle, specifically, passing through thin film transistor (TFT) (Thin Film Transistor, the TFT) device for etching formation in array substrate 13
The switch of part is to control opening or closing for voltage of electric field, and upon application of a voltage, the liquid crystal molecule of liquid crystal layer 14 is arranged vertically, light
Line cannot penetrate, and when no voltage is applied, liquid crystal molecule does not deflect, and light can pass through.When through the light of liquid crystal layer 14
It beats when on colored filter 151, colored filter 151 can accurately select the light of pre-pass small range wave band, and anti-
The light for penetrating its all band enables human eye to receive the light of a certain color of saturation.For example, if colored filter 151
A certain region is red filter region, then white light only appears feux rouges behind the region.
With reference to Fig. 3, in the present embodiment, color membrane substrates 15 include glass substrate 153 and the colour for being pasted to glass substrate 153
Optical filter 151, colored filter 151 include the pixel unit area 152 of array arrangement, and each pixel unit area 152 includes red
Sub-pixels area R, green sub-pixels area G, blue subpixels area B and white sub-pixels area W, the white light warp that backlight 11 issues
Feux rouges is appeared after crossing red sub-pixel area R, appears green light after green sub-pixels area G, is appeared after blue subpixels area B
Blue light, feux rouges, green light and the blue light colour mixture of varying strength together, then realize colored display.And what purple LED chip issued
Purple light can not be appeared by red sub-pixel area R, green sub-pixels area G and blue subpixels area B, what backlight 11 issued
White light still appears white light after white sub-pixels area W, then the purple light in white light also can be saturating through white sub-pixels area W
Out, then the capable of emitting purple light of liquid crystal display die set, user can receive purple light in application liquid crystal display die set.Fig. 3 is only this
A kind of example of colored filter 151 in inventive embodiments, each column sub-pixel area solid colour, naturally it is also possible to make each column
Sub-pixel area is staggered, as shown in figure 4, Fig. 4 is another planar junction of the colored filter in Fig. 2 in liquid crystal display die set
Composition, each column sub-pixel area color are not quite similar, in addition, 152 Zhong Ge color sub-pixels area of each pixel unit area can not press
According to certain rule compositor, illustratively, the distributing order of current line pixel cellular zone 152 can be red sub-pixel area R, green
Sub-pixels area G, blue subpixels area B and white sub-pixels area W, then the distributing order of next line pixel unit area 152 can
Think red sub-pixel area R, white sub-pixels area W, green sub-pixels area G and blue subpixels area B, the present embodiment is to each son
The distributing order of pixel region is without limiting.
It is the spectrogram that a kind of liquid crystal display die set provided in this embodiment emits beam with reference to Fig. 5, Fig. 5, specifically, figure
Respectively illustrated in 5 the white light of liquid crystal display die set sending 1., feux rouges 2., the green light 3. optical wavelength λ and light wave with blue light 4.
The relation schematic diagram of intensity I, it is known that in the range of wavelength is 380~410nm, liquid crystal display die set issues the light wave of white light 1.
Intensity I is larger, at this time white light 1. in contain purple light light wave, then liquid crystal display die set can issue purple light, the purple light to human body have
Have larger benefit, for example, user viewing include liquid crystal display die set provided in this embodiment motor machine when, can be by purple
Light irradiation, facilitates human body synthesis of vitamin d, promotes absorption of the human body to calcium, improves the health status of user.In addition, white
The setting of sub-pixel area W allows the light emission luminance of liquid crystal display die set greatly to be promoted, while increasing liquid crystal display die set
Light transmittance greatly improves viewing experience to the feeling that user is more glittering and translucent on picture.
Optionally, it can control the TFT device in array substrate 13 only to control white sub-pixels area W and issue white light, then liquid crystal
Display module forms white field picture, and user, which is equivalent to, directly to get sun, and the Nature sun can be experienced by not needing to walk out interior
Light bring is comfortable, enhances user experience.Illustratively, the screen protection of liquid crystal display can be set to white field picture, works as liquid crystal
When display screen is not operated within the set time, liquid crystal display can be directly entered white field picture.
Liquid crystal display die set provided in an embodiment of the present invention, including backlight, the first polaroid, array substrate, liquid crystal layer,
Color membrane substrates and the second polaroid, backlight are used to provide white backlight for liquid crystal display, include multiple LED in backlight
Light source, for issuing white light respectively, wherein at least one LED light source includes purple LED chip, then the backlight ultimately forms
White light spectrum in increase purple light, simulated solar irradiation so that white-light spectrum is more complete, and pass through purple LED chip
Fluorescent material can be excited to issue the light of other colors, enhance the continuity of white-light spectrum, and then enhance liquid crystal display die set
Colour rendering so that liquid crystal display die set shows that color is more abundant, in addition, the pixel list of the colored filter in color membrane substrates
In first area other than it can penetrate feux rouges, blue light and the region of green light, there is also the white sub-pixels that can be directed through white light
Area, then the capable of emitting purple light of final liquid crystal display die set, facilitates human body synthesis of vitamin d, promotes absorption of the human body to calcium, is promoted
The health status of human body.
It is core of the invention thought above, following will be combined with the drawings in the embodiments of the present invention, to the embodiment of the present invention
In technical solution be clearly and completely described.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Under the premise of making creative work, every other embodiment obtained be shall fall within the protection scope of the present invention.
Optionally, the wave-length coverage of the purple light of the sending of purple LED chip can be 370~410nm.The purple light packet of the wave band
Purple light and nearly purple light are included, skin metabolism can be promoted, keeps skin growing power strong, skin thickeies, and can also treat psoriasis
Etc. skin diseases, be beneficial purple light wave band, in traditional liquid crystal display screen use red sub-pixel area R, green sub-pixels area G and
The colored filter of blue subpixels area B is compared, use red sub-pixel area R, the green sub-pixels area G, blue of the present embodiment
The colored filter 151 of sub-pixel area B and white sub-pixels area W, so that 370~410nm of purple light wave band in backlight 11
It may pass through white sub-pixels area W, so that the capable of emitting wave-length coverage of liquid crystal display is the beneficial purple light of 370~410nm.
It optionally, is a kind of structural schematic diagram of LED light source provided in an embodiment of the present invention with reference to Fig. 6, Fig. 6, at least one
A LED light source 111 may include the fluorescence conversion layer 113 of purple LED chip 112 and covering purple LED chip 112；Fluorescence conversion
Layer 113 is doped with red fluorescence powder, green emitting phosphor and blue colour fluorescent powder.
At least existing in a LED light source 111 in backlight 11 includes purple LED chip 112, and there may be only include
Traditional OLED light source of Nan dian Yao chip, the LED light source 111 for being provided with purple LED chip 112 includes purple LED chip 112
With the fluorescence conversion layer 113 of covering purple LED chip 112, the bracket 114 of LED light source 111 is arranged in purple LED chip 112
On, and purple LED chip 112 is connect by conducting wire 115 with the power end on bracket 114, enables purple LED chip 112
Enough issue purple light, cover purple LED chip 112 fluorescence conversion layer 113 using silica gel as substrate, and in packaging plastic doped with
Red fluorescence powder, green emitting phosphor and blue colour fluorescent powder, the purple light energy that purple LED chip 112 issues is higher, can excite red
Color fluorescent powder issue feux rouges, excitation green emitting phosphor issue green light simultaneously excite blue light fluorescent powder issue blue light, then purple light, feux rouges,
Blue light and green light are mixed to form the more complete white light of wave band, improve the color rendition index of liquid crystal display die set.Optionally, respectively
LED chip is made of InGaN material.
Optionally, at least existing in a LED light source 111 includes multiple purple LED chips 112, to enhance the light of purple light
By force, enhance the integrality of white-light spectrum.
Fluorescent powder generally comprise matrix and be doped in matrix include abundant electron energy level element, it is exemplary
, for red fluorescence powder Y2O3:Eu3+, under particular light, Eu3+It can excite to form excitation state, Eu3+Very in excitation state
It is easily returned to ground state, Eu3+When returning to ground state by excitation state, Y2O3 can be excited to issue feux rouges.
Optionally, blue colour fluorescent powder Ca3(PO4)5Cl:Eu2+System and/or BaxCayMgAl10O17: Eu2+In system
One or more materials；Wherein, x, y are positive number；Red fluorescence powder is one of nitride and/or fluoride or a variety of materials
Material；Green emitting phosphor is one of β-sialon, silicate and/or Mg aluminate or multiple material.
Blue colour fluorescent powder is generally excited by violet exposure, Ca3(PO4)5Cl:Eu2+System may include a variety of different fluorescence
Powder material, BaxCayMgAl10O17: Eu2+System also includes a variety of different materials, and blue colour fluorescent powder can only include Ca3(PO4)5Cl:
Eu2+One of system or multiple material can also only include BaxCayMgAl10O17: Eu2+One of system or multiple material,
Alternatively, can also include Ca3(PO4)5Cl:Eu2+System and BaxCayMgAl10O17: Eu2+Material in system.
It optionally, can be by controlling blue-fluorescence meal component, so that the wavelength for the blue light that blue colour fluorescent powder issues
Range is in 450~500nm.According to biological clock rule, usually at night 9 points or 10 points of the brain of human body start secretion take off it is black
Element, it is the substance that can improve sleep quality that epiphysin, which helps to shorten, which sleeps preceding awakening time and time for falling asleep,.And this substance with
People contact light have close relationship, it is especially very sensitive to the blue light of certain wave bands, can the wave band blue light be referred to as to have
Evil blue light, the epiphysin that harmful blue light can generate Human Pineal Body has inhibiting effect, for a long time under the luminous environment of harmful blue light,
Sleep disturbance can even be generated.Harmful blue light wave-length coverage is mainly 420~450nm (shortwave high-energy), beneficial to blue light wavelength
Range is 450~500nm, the former will cause the photochemical damage of human eye retina, and the latter then can be by influencing human body
Melatonin secretion influences the state of mind of people to adjust the circadian rhythm of people in turn.It can inspire enthusiasm, mitigate beneficial to blue light
Depression, therefore irradiate blue light and can be used to treat seasonal affective disorder (winter depression), meanwhile, it can be improved and sleep beneficial to blue light
Dormancy quality.Illustratively, blue wavelength range can be limited in 450~480nm, to protect to human eye, and adjusts human body
Melatonin secretion the state of mind of people is adjusted, beneficial to physically and mentally healthy.
Preferably, the wave-length coverage for the blue light that blue colour fluorescent powder issues can be limited in 460~470nm.With reference to Fig. 7, Fig. 7
It is the spectrogram of liquid crystal display die set provided in an embodiment of the present invention Yu traditional liquid crystal display module.The present embodiment backlight 11 is sent out
The wave-length coverage of blue light out is 460-480nm, and the spectrum of formation increases beneficial to blue wave band, and cuts down harmful blue light wave band,
And blue light forms peak value in the part 463nm, and the blue light of traditional liquid crystal display module forms peak value, this implementation at 450nm
The liquid crystal display die set that example provides realizes red shift of the blue light components to long-wave band, reduces harm of the harmful blue light to eyes.
Backlight 11 forms peak value at the 388nm of purple light part, and providing facilitates human body synthesis of vitamin d, promotes suction of the human body to calcium
It receives.
It similarly, can be one or more materials of nitride, or in fluoride for red fluorescence powder
It is one or more, alternatively, for the multiple material in nitride and fluoride.Illustratively, nitride red fluorescent powder can be with
(Ca,Sr)SiAlN3: Eu2+、CaAlSi(ON)3: Eu2+Deng fluoride can be AxMFy: Mn4+, wherein A=Li, Na, K, Ca,
Sr, Ba etc., M=Si, Al, Y, Sc etc., it is preferred that can be by the adjusting to red fluorescence meal component so that the wave-length coverage of feux rouges
For 620~650nm, weak wave band in the existing LED light spectrum of effective compensation increases the company of the spectrum for the white light that backlight 11 issues
Continuous property.
Likewise, green emitting phosphor can be in β-sialon, silicate and/or Mg aluminate for green emitting phosphor
One or more materials, illustratively, green emitting phosphor can be SiAlON:Eu2+.In addition, green emitting phosphor can also wrap
Include the material in LuAG system or GaYAG system.Preferably, it can be adjusted by the ingredient to green emitting phosphor to control
The wave-length coverage of the blue light of sending is 520~522.5nm, and the weak wave band in the existing LED light spectrum of effective compensation increases backlight
The continuity of the spectrum of 11 white lights issued.
It optionally, is the structural schematic diagram of another LED light source provided in an embodiment of the present invention with reference to Fig. 8, Fig. 8, at least
It may include purple LED chip 112, blue-light LED chip 116 and 113, purple LED core of covering and blue light in one LED light source 111
The fluorescence conversion layer 113 of LED chip 116；Fluorescence conversion layer 113 is doped with green emitting phosphor and red fluorescence powder.
In this implementation, LED light source uses the form of dual chip, using purple LED chip 112 and blue-light LED chip 116,
Green emitting phosphor and red fluorescence powder are excited, to generate white light, because of the setting of multiple color LED chip, so that NTSC1931
For color gamut value up to 100-105%, display screen colour gamut is higher, and display picture is more gorgeous, and the visual impact of viewer is stronger,
The scheme of the present embodiment can enhance the colour rendering of liquid crystal display die set.Optionally, can only include in a LED light source 111
One purple LED chip 112 and a blue-light LED chip 116, as shown in Figure 8.One LED light source 111 also may include one
Purple LED chip 112 and multiple blue-light LED chips 116；Or including multiple purple LED chips 112 and a blue-ray LED core
Piece 116；Or including multiple purple LED chips 112 and multiple blue-light LED chips 116.It can the company of series connection between each LED chip
Connect and be bonded afterwards with the voltage end on bracket 114, as shown in figure 8, between each LED chip can and downlink connection, each LED chip
First end connect same electrode, second end connects the same electrode, as shown in figure 9, Fig. 9 is provided in an embodiment of the present invention
The structural schematic diagram of another LED light source, the purple LED chip 112 and blue-light LED chip 116 being arranged in Fig. 9 are connected in parallel,
The current value for then flowing through purple LED chip 112 is different with the current value for flowing through blue-light LED chip 116, thus according to required
Intensity of purple light and blue light light intensity, are respectively adjusted the current value of purple LED chip 112 and blue-light LED chip 116, enhancing
The integrality of the spectrum of finally formed white light.
Optionally, purple LED chip 112 and blue-light LED chip 116 can be connected in parallel；The driving of purple LED chip 112
Current range is 20~60ma；The drive current range of blue-light LED chip is 180~760ma.Because purple light energy is low, therefore swash
Purple light spectrum after the hair energy proportion in entire spectrum is lower, is only completion spectrogram, and providing facilitates human body synthesis dimension life
Plain D promotes absorption of the human body to calcium, then can drive purple LED chip 112 by the driving current of 20~60ma, obtain and need
Intensity of purple light, the drive current range of blue-light LED chip is 180~760ma, obtains the blue light light intensity of needs.Purple in parallel
The voltage value of the driving voltage of light LED chip 112 and blue-light LED chip 116 can be 2.8~3.6V.
Illustratively, the chip of two kinds of sizes of size can be used, wherein small-size chips are the purple LED core of 0911mil
Piece 112, large size chip are the blue-light LED chip 116 of 2235mil or 2828mil.
Optionally, the wave-length coverage of the purple light of the sending of purple LED chip 112 is 370~410nm, blue-light LED chip
The wave-length coverage of the blue light of sending can be 460~470nm.It can issue in guarantee liquid crystal display die set beneficial to the same of purple light
When, increase the composition in spectrum beneficial to blue light, to obtain the liquid crystal display beneficial to human body physical and mental health.
Optionally, red fluorescence powder is one of nitride and/or fluoride or multiple material；Green emitting phosphor is β-
One of sialon, silicate and/or Mg aluminate or multiple material.
Optionally, the fluorescent powder that the purple LED chip 112 that wave-length coverage is 370~410nm excites includes the positive silicic acid of alkaline earth
Salt M2SiO4(M=Ba, Sr, Ca, Mg) and its solid solution and/or Sr2MgSiO5: one of Eu2+ phosphor or two
Kind combination.
Optionally, it includes aluminate, silicate, nitrogen oxygen that wave-length coverage, which is the fluorescent powder of 460~470nm blue chip excitation,
Compound, (Lu, Y)3(Al,Ga)5O12:Ce3+, nitride rouge and powder (Ca, Sr) SiAlN3: Eu2+、CaAlSi(ON)3: Eu2+、
SiAlON:Eu2+And (Ba, Sr)2SiO4: Eu2+One of phosphor or multiple combinations.
Optionally, the proportional region that the quality for the fluorescent powder that purple LED chip 112 excites accounts for fluorescent powder gross mass can be 4
~6%.Purple LED chip 112 is mainly used for exciting blue light fluorescent powder, then the quality for the fluorescent powder that purple LED chip 112 excites
The proportional region that fluorescent powder gross mass can only be accounted for can be 4~6%.
Optionally, green emitting phosphor and red fluorescence powder mass values may range from 94~96%.It can be according to liquid
The adjustment green emitting phosphor of color saturation needed for brilliant display module and red fluorescence powder each account for comparing, to obtain different
Color saturation.When the range of green emitting phosphor and red fluorescence powder mass values is 94~96%, liquid crystal display die set can
Relatively high color saturation is obtained, the colour rendering of liquid crystal display die set is improved.
Optionally, as shown in Figure 10, Figure 10 is the structural schematic diagram of another LED light source provided in an embodiment of the present invention,
At least one LED light source 111 may include that purple LED chip 112, blue-light LED chip 116, green LED chip 116 and covering are purple
The fluorescence conversion layer 113 of light LED chip 112, green LED chip 117 and blue-light LED chip 116；Fluorescence conversion layer 113 adulterates
There is red fluorescence powder.Purple LED chip 112, blue-light LED chip 116 and green LED chip are set simultaneously in LED light source 111
117, further increase the colour rendering of enhancing liquid crystal display die set.
Optionally, the wave-length coverage of the purple light of the sending of purple LED chip 112 is 370~410nm, blue-light LED chip
The wave-length coverage of the blue light of sending can be 460~470nm；The wave-length coverage of the blue light of the sending of green LED chip be 520~
522.5nm.Each LED chip is controlled to be configured according to above-mentioned wave-length coverage, it being capable of missing in effective compensation existing LED light spectrum
Wave band or weak wave band, increase the continuity and integrality of the spectrum for the white light that backlight 11 issues.
Optionally, as shown in figure 11, Figure 11 is the structural schematic diagram of another LED light source provided in an embodiment of the present invention,
At least one LED light source 111 may include purple LED chip 112, blue-light LED chip 116, green LED chip 117 and red-light LED
Chip 118.
Optionally, the wave-length coverage of the purple light of the sending of purple LED chip 112 is 370~410nm, blue-light LED chip
The wave-length coverage of the blue light of 116 sending is 460~470nm；The wave-length coverage of the green light of the sending of green LED chip 117 is
520~522.5nm；The wave-length coverage of the feux rouges of the sending of red LED chip 118 is 620~650nm.Each LED chip is controlled to press
Be configured according to above-mentioned wave-length coverage, can missing wave band or weak wave band in effective compensation existing LED light spectrum, increase backlight
The continuity and integrality of the spectrum for the white light that source 11 issues.And fluorescence conversion layer 113 undopes fluorescent powder, only by silica gel structure
At each LED chip is able to issue purple light, feux rouges, green light and blue light, can reach high NTSC1931 color gamut value, increases
The luminescent quality of strong liquid crystal display die set.
The embodiment of the present invention also provides a kind of display device.Figure 12 is a kind of display device provided in an embodiment of the present invention
Structural schematic diagram, as shown in figure 12, display device 2 provided in an embodiment of the present invention include liquid described in any embodiment of that present invention
Brilliant display module 1.Display device 2 can be television set as shown in Figure 12, or computer, mobile phone, intelligence wearing are set
Standby etc., the present embodiment is not particularly limited this.
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 (10)
1. a kind of liquid crystal display die set, which is characterized in that including the backlight, the first polaroid, array substrate, liquid set gradually
Crystal layer, color membrane substrates and the second polaroid；
It include multiple LED light sources in the backlight, for issuing white light；At least one LED light source includes purple LED chip；
Colored filter in the color membrane substrates includes the pixel unit area of array arrangement, and each pixel unit area includes red
Sub-pixels area, green sub-pixels area, blue subpixels area and white sub-pixels area, so that the purple LED chip issues
Purple light can be projected by the white sub-pixels area.
2. liquid crystal display die set according to claim 1, which is characterized in that
The wave-length coverage of the purple light of the sending of the purple LED chip is 370~410nm.
3. liquid crystal display die set according to claim 2, which is characterized in that
At least one LED light source includes purple LED chip and the fluorescence conversion layer for covering the purple LED chip；The fluorescence
Conversion layer is doped with red fluorescence powder, green emitting phosphor and blue colour fluorescent powder.
4. liquid crystal display die set according to claim 2, which is characterized in that
It include purple LED chip, blue-light LED chip and the covering purple LED chip and the indigo plant at least one LED light source
The fluorescence conversion layer of light LED chip；The fluorescence conversion layer is doped with green emitting phosphor and red fluorescence powder.
5. liquid crystal display die set according to claim 4, which is characterized in that
The wave-length coverage of the blue light of the sending of the blue-light LED chip is 460~470nm.
6. liquid crystal display die set according to claim 4, which is characterized in that
The purple LED chip and the blue-light LED chip are connected in parallel；
The drive current range of the purple LED chip is 20~60ma；The drive current range of the blue-light LED chip is
180~760ma.
7. liquid crystal display die set according to claim 4, which is characterized in that
The proportional region that the quality of the fluorescent powder of the purple LED chip excitation accounts for fluorescent powder gross mass is 4~6%.
8. liquid crystal display die set according to claim 4, which is characterized in that
The range of the green emitting phosphor and red fluorescence powder mass values is 94~96%.
9. liquid crystal display die set according to claim 2, which is characterized in that at least one LED light source includes purple LED core
Piece, blue-light LED chip, green LED chip and the covering purple LED chip, the green LED chip and the blue-ray LED
The fluorescence conversion layer of chip；The fluorescence conversion layer is doped with red fluorescence powder.
10. a kind of display device, which is characterized in that including such as described in any item liquid crystal display die sets of claim 1-9.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873971A (en) * | 2019-11-29 | 2020-03-10 | 维沃移动通信有限公司 | Wearable device and light filtering method thereof |
| CN114373848A (en) * | 2021-01-27 | 2022-04-19 | 昆山麦沄显示技术有限公司 | LED chip and manufacturing method thereof |
| CN114530093A (en) * | 2021-12-24 | 2022-05-24 | 厦门天马微电子有限公司 | Display module, driving method of display device and display device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093293A (en) * | 2006-06-20 | 2007-12-26 | 瀚宇彩晶股份有限公司 | Touch control faceplate, and fabricating method |
| CN102881684A (en) * | 2012-10-15 | 2013-01-16 | 南昌绿扬光电科技有限公司 | LED (light-emitting diode) packaging structure and method |
| US8436843B2 (en) * | 2007-04-10 | 2013-05-07 | John Pietrasik | Color imaging system |
| CN103151445A (en) * | 2013-03-04 | 2013-06-12 | 中国科学院半导体研究所 | Low thermal resistance LED (Light Emitting Diode) packaging structure and packaging method |
| CN104793397A (en) * | 2015-03-16 | 2015-07-22 | 厦门天马微电子有限公司 | Liquid crystal display module and liquid crystal display device |
| CN105810674A (en) * | 2016-04-29 | 2016-07-27 | 广东晶科电子股份有限公司 | Light emitting diode (LED) luminous device and backlight module employing same |
| CN105870111A (en) * | 2016-04-30 | 2016-08-17 | 浙江单色电子科技有限公司 | Ultraviolet LED special for fishing lamp and manufacturing method of ultraviolet LED |
| CN105870112A (en) * | 2016-04-30 | 2016-08-17 | 浙江单色电子科技有限公司 | Mixed wavelength violet LED and manufacturing method thereof |
| CN107390432A (en) * | 2017-08-21 | 2017-11-24 | 深圳创维－Rgb电子有限公司 | A kind of LED light source, backlight module and liquid crystal display device |
-
2019
- 2019-03-29 CN CN201910252279.5A patent/CN109856860B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101093293A (en) * | 2006-06-20 | 2007-12-26 | 瀚宇彩晶股份有限公司 | Touch control faceplate, and fabricating method |
| US8436843B2 (en) * | 2007-04-10 | 2013-05-07 | John Pietrasik | Color imaging system |
| CN102881684A (en) * | 2012-10-15 | 2013-01-16 | 南昌绿扬光电科技有限公司 | LED (light-emitting diode) packaging structure and method |
| CN103151445A (en) * | 2013-03-04 | 2013-06-12 | 中国科学院半导体研究所 | Low thermal resistance LED (Light Emitting Diode) packaging structure and packaging method |
| CN104793397A (en) * | 2015-03-16 | 2015-07-22 | 厦门天马微电子有限公司 | Liquid crystal display module and liquid crystal display device |
| CN105810674A (en) * | 2016-04-29 | 2016-07-27 | 广东晶科电子股份有限公司 | Light emitting diode (LED) luminous device and backlight module employing same |
| CN105870111A (en) * | 2016-04-30 | 2016-08-17 | 浙江单色电子科技有限公司 | Ultraviolet LED special for fishing lamp and manufacturing method of ultraviolet LED |
| CN105870112A (en) * | 2016-04-30 | 2016-08-17 | 浙江单色电子科技有限公司 | Mixed wavelength violet LED and manufacturing method thereof |
| CN107390432A (en) * | 2017-08-21 | 2017-11-24 | 深圳创维－Rgb电子有限公司 | A kind of LED light source, backlight module and liquid crystal display device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873971A (en) * | 2019-11-29 | 2020-03-10 | 维沃移动通信有限公司 | Wearable device and light filtering method thereof |
| CN110873971B (en) * | 2019-11-29 | 2021-08-31 | 维沃移动通信有限公司 | Wearable device and light filtering method thereof |
| CN114373848A (en) * | 2021-01-27 | 2022-04-19 | 昆山麦沄显示技术有限公司 | LED chip and manufacturing method thereof |
| CN114530093A (en) * | 2021-12-24 | 2022-05-24 | 厦门天马微电子有限公司 | Display module, driving method of display device and display device |
| CN114530093B (en) * | 2021-12-24 | 2024-01-19 | 厦门天马微电子有限公司 | Display module, driving method of display device and display device |
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| Publication number | Publication date |
|---|---|
| CN109856860B (en) | 2022-04-19 |
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