CN110456565A - Backlight module and manufacturing method thereof, display module and manufacturing method thereof, and display device - Google Patents
Backlight module and manufacturing method thereof, display module and manufacturing method thereof, and display device Download PDFInfo
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- CN110456565A CN110456565A CN201910700146.XA CN201910700146A CN110456565A CN 110456565 A CN110456565 A CN 110456565A CN 201910700146 A CN201910700146 A CN 201910700146A CN 110456565 A CN110456565 A CN 110456565A
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—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
- G02F1/133621—Illuminating devices providing coloured light
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
-
- 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)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Led Device Packages (AREA)
Abstract
The invention discloses a backlight module and a manufacturing method thereof, a display module and a manufacturing method thereof and a display device, and relates to the technical field of display, wherein the backlight module comprises: the LED backlight module comprises a back plate, a driving circuit positioned on one side of the back plate and an LED backlight electrically connected with the driving circuit; the LED backlight includes: the backlight module comprises a blue light chip for emitting blue light, a green light chip for emitting green light, and red fluorescent powder and green fluorescent powder which are positioned on one sides of the blue light chip and the green light chip far away from a back plate; the ratio of the peak intensity of the green light emitted by the LED backlight source to the peak intensity of the blue light emitted by the LED backlight source is A, wherein A is more than or equal to 0.414 and less than or equal to 0.6. The display module comprises the backlight module. When using backlight unit to display module assembly in, be favorable to reducing the occupation of ratio of blue light in backlight unit and the light that display module assembly sent to reduce the injury that causes the people's eye, still can not reduce display module assembly and display device's transmissivity simultaneously, guarantee display module assembly and display device's display effect.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of backlight module and manufacturing method, display module and
Manufacturing method and display device.
Background technique
Liquid crystal display is the display equipment of planar ultra-thin, it is made of a certain number of colored or monochrome pixels, is placed
In front of light source or reflecting surface.Liquid crystal display power consumption is very low, therefore is favored by engineer, suitable for using the electricity of battery
Sub- equipment.Its cardinal principle is to generate point, line, surface cooperation back fluorescent tube with electric current stimulation liquid crystal molecule to be constituted picture.
The working principle of liquid crystal display: liquid crystal is a kind of particular matter between a solid and a liquid, it is a kind of
Organic compound is in a liquid state under normality, but its molecules align is but fairly regular as solid crystal, therefore is named liquid
Crystalline substance, its another special nature be, if liquid crystal is given to apply an electric field, can change its molecules align, at this moment if
Its matching polarized light piece is given, it just has the function of that light is prevented to pass through (when not applying electric field, light can be penetrated smoothly),
If cooperating colored filter again, change adds to liquid crystal voltage size, can change a certain color light transmission capacity number, can also be with
The voltage for figuratively changing liquid crystal both ends can change its light transmittance.
With the continuous development of LCD technology, the application field of liquid crystal display especially colour liquid crystal display device
Constantly widening.It is pulled by the market of liquid crystal display, backlight industry, have an air of prosperity scene.Liquid crystal display device is
The display device of non-luminescent property need can be only achieved the function of display by backlight.The quality of light provided by backlight
The display quality of liquid crystal display device is directly influenced, in the prior art, a kind of design scheme of relatively conventional backlight module
It is using blue chip and green light chip and to increase red fluorescence powder, but the light that such backlight is issued is through display panel
The phenomenon that turning blue can be presented in light after injection, and the light to turn blue will cause biggish injury to human eye, such as blue light can penetrate
Crystalline lens goes directly retina, causes retinal pigment epithelium atrophy, also results in maculopathy etc..
In the prior art, the mode of the transmitance of red color resistance and blue color blocking on reduction display panel is usually taken to change
The phenomenon that light that kind display module is issued turns blue, such mode sacrifices the transmitance of entire display module, affects aobvious
Show the display effect of mould group.
Summary of the invention
In view of this, the present invention provides a kind of backlight module and manufacturing method, display module and manufacturing method and displays
Device is conducive to the accounting for reducing blue light in the light that backlight module and display module are issued, causes to reduce to human eye
Injury, while will not also reduce the transmitance of display module and display device, guarantee the display of display module and display device
Effect.
In a first aspect, the application provides a kind of backlight module, comprising: backboard, the driving circuit positioned at the backboard side
And the LED backlight being electrically connected with the driving circuit；
The LED backlight includes: the blue chip for emitting blue light, emits the green light chip of green light and be located at the indigo plant
Optical chip and the green light chip red fluorescence powder and green emitting phosphor far from the backboard side；
Ratio between the peak intensity for the green light that the LED backlight is issued and the peak intensity of its blue light issued
Value is A, wherein 0.414≤A≤0.6.
Second aspect, the application provide a kind of display module, described including the backlight module in display panel and the application
Display panel includes the color membrane substrates being oppositely arranged and array substrate, and the backlight module is located at the array substrate far from described
The side of color membrane substrates；
The color membrane substrates include color blocking layer, and the color blocking layer includes the blue color blocking of array arrangement, green color blocking and red
Color color blocking；
The light that the backlight module issues projects to be formed out from the light-emitting surface of the display module via the color blocking layer
Light is penetrated, the chromaticity coordinates of the white point of the emergent ray is (Wx, Wy), in which: Wy > Wx, and Wy=0.3847*A+0.1318,
The peak intensity for the green light that wherein A is issued by the LED backlight in the backlight module and the wave crest of its blue light issued
Ratio between intensity, 0.414≤A≤0.6.
The third aspect, the application provide a kind of display device, including the display module in the application.
Fourth aspect, the application provide a kind of manufacturing method of backlight module, comprising:
Multiple brackets are provided, the bottom of each bracket be respectively formed at least one transmitting blue light blue chip and
The green light chip of at least one transmitting green light, the blue chip are connected with the green light chip-in series；
Red fluorescence powder and green emitting phosphor are mixed in packaging plastic, and are blended with red fluorescence powder and green emitting phosphor
Packaging plastic be packaged in the side of blue chip described in each bracket and the bottom of the green light chip far from the bracket,
Form LED backlight；The peak intensity of the peak intensity for the green light that the LED backlight is issued and its blue light issued it
Between ratio be A, wherein 0.414≤A≤0.6；
A backboard is provided, the side of the backboard is provided with driving circuit；
Each LED backlight and the driving circuit are bound, so that LED backlight is electrically connected with the driving circuit.
5th aspect, the application provide a kind of manufacturing method of display module, comprising:
Backlight module is formed using method provided by the present application；
Display panel is made, which includes the color membrane substrates being oppositely arranged and array substrate, the color membrane substrates
Including color blocking layer, the color blocking layer includes the blue color blocking, green color blocking and red color resistance of array arrangement；
Display panel and backlight module are bonded, backlight module is made to be located at the array substrate far from the color membrane substrates
Side；The light that the backlight module issues projects to form emergent light via the color blocking layer from the light-emitting surface of the display module
Line, the chromaticity coordinates of the white point of the emergent ray are (Wx, Wy), in which: Wy > Wx, and Wy=0.3847*A+0.1318, wherein
The peak intensity of the peak intensity for the green light that A is issued by the LED backlight in the backlight module and its blue light issued
Between ratio, 0.414≤A≤0.6.
Compared with prior art, backlight module provided by the invention and manufacturing method, display module and manufacturing method and aobvious
Showing device, at least realize it is following the utility model has the advantages that
In backlight module and manufacturing method provided herein, display module and manufacturing method and display device, carrying on the back
Green emitting phosphor is introduced in the LED backlight of optical mode group, improves the accounting of green light in the light that LED backlight is issued,
The accounting of blue light in the light that LED backlight is issued is reduced by the promotion of green light accounting, to advantageously reduce blue light
Injury to human eye.In addition, when forming display module using above-mentioned backlight module, the LED backlight as described in backlight module
Ratio A between the peak intensity for the green light that source is issued and the peak intensity of its blue light issued meet 0.414≤A≤
0.6, and the Wy=0.3847*A+0.1318 in display module in white point chromaticity coordinates, it is not added with green fluorescence compared with prior art
The mode of powder, so that white point chromaticity coordinates is improved, therefore, without reducing red color resistance and blue color blocking on color membrane substrates
Transmitance under the premise of, can effectively promote white point chromaticity coordinates, when white point chromaticity coordinates promoted when, advantageously reduce through show mould
The accounting of blue light in the light that group projects, therefore the injury for reducing blue light to human eye is not only improved, and display module will not be sacrificed
Transmitance, guarantee that display module and display device have preferable display effect.
Certainly, implementing any of the products of the present invention specific needs while must not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is shown reduces Wy value and transmitance loss late relational graph when transmitance promotes Wy value in the prior art；
Fig. 2 show a kind of top view of backlight module provided by the embodiment of the present application；
Fig. 3 show in Fig. 2 a kind of AA ' sectional view of LED backlight in backlight module；
Fig. 4 show a kind of flow chart of the manufacturing method of backlight module provided by the embodiment of the present application；
Fig. 5 show a kind of schematic diagram for forming blue chip and green light chip in the bracket；
Fig. 6, which is shown, utilizes the packaging plastic for being mixed with red fluorescence powder and green emitting phosphor to blue chip and green light chip
It is packaged a kind of schematic diagram to form LED backlight；
Fig. 7 show a kind of schematic diagram for the backboard for being provided with driving circuit；
Fig. 8 is shown a kind of schematic diagram after LED backlight and driving circuit binding；
Fig. 9 show a kind of film layer structure figure of backlight module provided by the embodiment of the present application；
Figure 10 show a kind of top view of display module provided by the embodiment of the present application；
Figure 11 show a kind of BB ' sectional view of display module in Figure 10；
Figure 12 show G/B peak intensity than the corresponding relationship with Wy in white point chromaticity coordinates；
Figure 13 show a kind of flow chart of manufacturing method of display module provided by the embodiments of the present application；
Figure 14 show a kind of structural schematic diagram of display device provided by the embodiment of the present application.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Liquid crystal display device is the display device of non-luminescent property, need can be only achieved the function of display by backlight.Back
The quality of light provided by light source directly influences the display quality of liquid crystal display device, in the prior art, a kind of more normal
In the backlight module seen the design scheme of backlight be using blue chip and green light chip and increase red fluorescence powder, but this
The phenomenon that turning blue can be presented in the light that kind backlight is issued light after display panel projects, and the light to turn blue can make human eye
The through retina of crystalline lens can be penetrated at biggish injury, such as blue light, causes retinal pigment epithelium atrophy, can also
Lead to maculopathy etc..
In the prior art, the mode of the transmitance of red color resistance and blue color blocking on reduction display panel is usually taken to mention
The Wy value in white point coordinates is risen, the phenomenon that turning blue so as to improve the light that display device is issued, such mode is sacrificed entirely
The transmitance of display module, referring to Figure 1, Fig. 1 are shown when reducing transmitance promotion Wy value in the prior art, Wy value and transmission
Rate loss late relational graph, Wy value is bigger, and transmitance loss interest rate is bigger, to largely affect the aobvious of display module
Show effect.
In view of this, the present invention provides a kind of backlight module and manufacturing method, display module and manufacturing method and displays
Device is conducive to the accounting for reducing blue light in the light that backlight module and display module are issued, causes to reduce to human eye
Injury, while will not also reduce the transmitance of display module and display device, guarantee the display of display module and display device
Effect.
It is described in detail below with reference to the drawings and specific embodiments.
Fig. 2 show a kind of top view of backlight module provided by the embodiment of the present application, and Fig. 3 show backlight in Fig. 2
A kind of AA ' sectional view of LED backlight in mould group, incorporated by reference to Fig. 2 and Fig. 3, the application provides a kind of backlight module 100, comprising:
Backboard 10, the driving circuit 14 positioned at 10 side of backboard and the LED backlight 20 that is electrically connected with driving circuit 14；
LED backlight 20 includes: the blue chip 11 for emitting blue light, emits the green light chip 12 of green light and be located at blue light
Chip 11 and green light chip 12 red fluorescence powder 23 and green emitting phosphor 22 far from 10 side of backboard；
Ratio between the peak intensity for the green light that LED backlight 20 is issued and the peak intensity of its blue light issued
For A, wherein 0.414≤A≤0.6.
It should be noted that Fig. 2 illustrates only a kind of arrangement of blue chip 11 and green light chip 12 in backlight module 100
Schematic diagram does not represent actual size, and blue chip 11 and green light chip 12 are arranged alternately in Fig. 2, the application's
In some other embodiments, blue chip 11 and green light chip 12 also can be used other arrangement modes, the application to this not into
Row is specific to be limited.In addition, Fig. 3 again illustrates only blue chip 11, green light chip 12, red fluorescence powder 23 and green emitting phosphor
A kind of 22 relative positional relationship, does not represent actual film layer structure and size, only schematically illustrates.
Specifically, continuing with referring to figs. 2 and 3, in backlight module 100 provided by the embodiment of the present application, LED backlight
20, red fluorescence powder 23 and green emitting phosphor 22 are introduced far from the side of backboard 10 in blue chip 11 and green light chip 12,
In general, red fluorescence powder 23 is stimulated by blue light and emits feux rouges, green emitting phosphor 22 is stimulated by blue light and emits green light, in this way,
The blue light and red fluorescence powder 23 that green light that green emitting phosphor 22 and green light chip 12 are issued, blue chip 11 are issued
The feux rouges issued combines, and LED backlight 20 is made to issue white light.Especially since the application increases green in LED light source
Fluorescent powder 22 is equivalent to and improves the accounting for the green light that LED backlight 20 is issued, and is sent out to reduce LED backlight 20
The accounting of blue light out, to advantageously reduce blue light injury caused by human eye.In addition, the application is issued LED light source
The peak intensity of green light and the peak intensity of its blue light issued between ratio when being set as 0.414≤A≤0.6, make
The accounting for obtaining blue light in the light that LED backlight 20 is issued reduces, so as to largely reduce blue light to human eye
Injury.
Optionally, in backlight module 100 provided by the embodiment of the present application, the wave crest for the green light that LED light source is issued is strong
Spending the ratio between the peak intensity of its blue light issued is further 0.437≤A≤0.567, when by green light in mould group
It is arranged with the peak intensity ratio of blue light in the range, craft precision is high, and works as the backlight module 100 being applied to display
When in mould group, it is able to ascend the white point chromaticity coordinates of display module, meets the demand of display module white point coordinates in the market, makes white
Point chromaticity coordinates is deviated to the direction far from blue light, so as to reduce accounting for for blue light in the light that entire display module is issued
Than reducing injury of the blue light to human eye.
Optionally, Fig. 3 is referred to, in backlight module 100 provided by the embodiment of the present application, LED backlight 20 further includes
Packaging plastic 21, red fluorescence powder 23 and 22 mixed distribution of green emitting phosphor are in packaging plastic 21.
Specifically, the luminescence chip in LED backlight 20 usually requires to be packaged by encapsulated layer, wraps in encapsulated layer
Packaging plastic 21 is included, packaging plastic 21 herein for example can be OC glue；In utilization packaging plastic 21 to green light chip 12 and blue chip
Before 11 encapsulation, packaging plastic 21 is usually to be presented as uncured form, such as liquid, by red fluorescence powder 23 and green fluorescence
Powder 22 is mixed in packaging plastic 21, so that the distribution of red fluorescence powder 23 and green emitting phosphor 22 in packaging plastic 21 is more equal
Even, when being excited by blue light, what red fluorescence powder 23 and green emitting phosphor 22 can be more uniform shines, so that LED
The light that backlight 20 is issued is more uniform.Red fluorescence powder 23 and green emitting phosphor 22 are uniformly mixed in packaging plastic 21
Afterwards, packaging plastic 21 can be solidificated in the surface of blue chip 11 and green light chip 12, heat cure temperature by the way of heat cure
Degree is for example chosen as 120 DEG C, in this way, extraneous moisture and oxygen can either be avoided to enter blue chip 11 and green light chip 12
In, red fluorescence powder 23 and green emitting phosphor 22 therein can provide corresponding light again, issue LED backlight 20 integrally white
Coloured light line.
Optionally, the red fluorescence powder 23 that the application adulterates in the packaging plastic 21 of LED backlight 20 be KSF fluorescent powder or
Nitride red fluorescent powder；Wherein, KSF refers to comprising A2 (MF6): the compound of a type of Mn4+ structural formula formula,
Middle A is Li, Na, K, Rb, Cs, NH4One kind, and M is Ge, Si, Sn, Ti, one kind of Zr element；More typical example is
K2SiF6:Mn4+, excitation peak wavelength are (610-660) nm.
Optionally, the green emitting phosphor 22 that the application adulterates in the packaging plastic 21 of LED backlight 20 is nitrifier green
Fluorescent powder, silicate green fluorescent powder or aluminate green fluorescent powder；By taking SiAlON:Eu or silicate as an example, peak value wave is excited
A length of (525-550) nm.
Optionally, green emitting phosphor 22 and red fluorescence that the application is adulterated in the packaging plastic 21 of LED backlight 20
The doping quality proportioning of powder 23 is 1:5~5:1.When green emitting phosphor 22 and red fluorescence powder 23 are pressed quality proportioning 1:5~5:1
Uniformly mixing can make G/B peak intensity than control in 0.437~0.567 range；When green emitting phosphor 22 and red fluorescence powder 23
Quality proportioning when being 1:5, corresponding G/B peak intensity is than 0.437；When the quality of green emitting phosphor 22 and red fluorescence powder 23 is matched
When than for 5:1, corresponding G/B peak intensity is than 0.567.When the backlight module 100 to be applied in display module, it is able to ascend
The white point chromaticity coordinates of display module deviates white point chromaticity coordinates to the direction far from blue light, so as to reduce entire display mould
The accounting of blue light in the issued light of group, reduces injury of the blue light to human eye.
Based on the same inventive concept, present invention also provides the manufacturing method of backlight module 100 in any of the above-described embodiment,
Fig. 4 is referred to, Fig. 4 show a kind of flow chart of the manufacturing method of backlight module provided by the embodiment of the present application, comprising:
Step 101 provides multiple brackets 90, and the U-shaped structure that bracket 90 can be as shown in the figure, being also possible to other can realize
Structure, it is not limited here, the bottom of each bracket 90 be respectively formed at least one transmitting blue light blue chip 11 and
The green light chip 12 of at least one transmitting green light, the blue chip 11 and the green light chip 12 are connected in series；Refer to figure
5, Fig. 5 show a kind of schematic diagram that blue chip 11 and green light chip 12 are formed in bracket 90；Wherein, 11 He of blue chip
The arrangement mode of green light chip 12 can be presented as it is shown in fig. 5 be arranged alternately mode, certainly, in some other implementations of the application
In example, it can also be presented as other arrangement modes, the application is to this without specifically limiting；In addition, Fig. 5 illustrates only a bracket
It include the schematic diagram of two blue chip 11 and 1 green light chips 12 in 90, by route by two blue chips and one
Green Chip series connection, in some embodiments of the present application, blue chip 11 included in a bracket 90 and green light chip
12 quantity may also be set to other, and the application is to this without specifically limiting.
Step 102 mixes red fluorescence powder 23 and green emitting phosphor 22 in packaging plastic 21, and is blended with red fluorescence
The packaging plastic 21 of powder 23 and green emitting phosphor 22 is packaged in each bracket 90 blue chip 11 and green light chip 12 far from bracket 90
Bottom side, form LED backlight 20, such as refer to Fig. 6, Fig. 6 is shown using being mixed with 23 He of red fluorescence powder
The packaging plastic 21 of green emitting phosphor 22 is packaged a kind of signal to form LED backlight to blue chip 11 and green light chip 12
Figure；Ratio between the peak intensity for the green light that LED backlight 20 is issued and the peak intensity of its blue light issued is A,
Wherein, 0.414≤A≤0.6.Fig. 6 illustrates only some blue light chip 11, part green light chip 12 and packaging plastic and fluorescent powder
A kind of relative position relation figure, do not represent actual size and number.
Step 103 provides a backboard 10, and the side of backboard 10 is provided with driving circuit 14, refers to Fig. 7, and Fig. 7 is shown
It is provided with a kind of schematic diagram of the backboard of driving circuit；Optionally, which can be presented as U-shaped structure, be in backlight module
Other film layers formed accommodating space；Driving circuit 14 for example may include multiple thin film transistor (TFT)s, be also possible to FPC/PCB electricity
Road plate, it is not limited here；
Step 104 binds LED backlight 20 and driving circuit 14, so that 14 electricity of LED backlight 20 and driving Electricity Federation road
Connection, refers to Fig. 8, and Fig. 8 show a kind of schematic diagram after binding LED backlight and driving circuit 14.It may be noted that
It is after forming LED backlight, in the bottom of LED backlight, to correspond to for example settable multiple electric connecting terminals in bottom of bracket
Son equally may also set up multiple electric connection terminals in the side of driving circuit, when LED backlight and driving circuit are bound,
Electrical connection is corresponded between electric connection terminal, to form being electrically connected for LED backlight and driving circuit.
It should be noted that above-mentioned steps 101 and 102 are used to form LED backlight, step 103, which is used to form, to be provided with
The backboard 10 of driving circuit, the application are not defined the sequencing of the production of the production of backboard and LED backlight, only
To schematically illustrate；In the actual production process, the two can make simultaneously, can also successively make, and the application is to this without tool
Body limits.Above-mentioned steps only representatively illustrate a kind of method of LED backlight 20 in production backlight module 100, complete Fig. 8
After the production of shown structure, light guide plate 30 and at least one optical film 31 can be also made in backlight module 100 and (such as is added lustre to
Piece, diffusion sheet etc.), Fig. 9 is referred to, Fig. 9 show a kind of film layer knot of backlight module 100 provided by the embodiment of the present application
Composition, it should be noted that the application is illustrated by taking down straight aphototropism mode set 100 as an example, and only to backlight module
100 film layer structure is schematically illustrated, and actual size and film layer quantity are not represented.In some other of the application
Backlight module 100 can also be presented as side entering type structure in embodiment, and the application is to this without specifically limiting.
Specifically, it when the application is using above method production backlight module 100, when making packaging plastic 21, is sealing
Fill and mix red fluorescence powder 23 and green emitting phosphor 22 in glue 21, compared with the prior art in backlight module 100, increase green
Color fluorescent powder 22 improves the accounting of green light in the light that LED backlight 20 is issued, and is reduced by the promotion of green light accounting
The accounting of blue light in the light that LED backlight 20 is issued, to advantageously reduce injury of the blue light to human eye.It will in addition, working as
When being applied in display module using the backlight module 100 that the above method is formed, the LED backlight as described in backlight module 100
Ratio A between the peak intensity for the green light that source 20 is issued and the peak intensity of its blue light issued meet 0.414≤A≤
0.6, and the Wy=0.3847*A+0.1318 in display module in white point chromaticity coordinates, it is not added with green fluorescence compared with prior art
The mode of powder 22, so that white point chromaticity coordinates is improved, therefore, without reducing red color resistance 53 and indigo plant on color membrane substrates 42
Under the premise of the transmitance of color color blocking 51, white point chromaticity coordinates can be effectively promoted, when white point chromaticity coordinates is promoted, is advantageously reduced
The accounting of blue light in the light projected through display module, therefore the injury for reducing blue light to human eye is not only improved, and will not sacrifice
The transmitance of display module guarantees that display module has preferable display effect.
Optionally, red fluorescence powder 23 is KSF fluorescent powder or nitride red fluorescent powder 23；Green emitting phosphor 22 is nitridation
Object green emitting phosphor, silicate green fluorescent powder or aluminate green fluorescent powder；Green emitting phosphor 22 and red fluorescence powder 23
Doping quality proportioning is 1:5~5:1.Specifically, when green emitting phosphor 22 and red fluorescence powder 23 are pressed quality proportioning 1:5~5:
1 uniformly mixing, can make G/B peak intensity than control in 0.437~0.567 range；When green emitting phosphor 22 and red fluorescence powder
When 23 quality proportioning is 1:5, corresponding G/B peak intensity is than 0.437；When the quality of green emitting phosphor 22 and red fluorescence powder 23
When proportion is 5:1, corresponding G/B peak intensity is than 0.567.When the backlight module 100 is applied in display module, Neng Gouti
The white point chromaticity coordinates for rising display module deviates white point chromaticity coordinates to the direction far from blue light, so as to reduce entire display
The accounting of blue light in the light that mould group is issued reduces injury of the blue light to human eye.
Optionally, it in above-mentioned steps 104, is blended in packaging plastic 21 by red fluorescence powder 23 and green emitting phosphor 22
Afterwards, to blue light by way of carrying out heat cure processing to the packaging plastic 21 for being mixed with red fluorescence powder 23 and green emitting phosphor 22
Chip 11 and green light chip 12 are packaged.Packaging plastic 21 in the application is for example chosen as silica gel.At normal temperature, packaging plastic 21
It is typically embodied by non-solid structure, red fluorescence powder 23 and green emitting phosphor 22 is mixed, non-solid (such as liquid) structure is added
Packaging plastic 21 in after, stirring rod can be used and stir evenly red fluorescence powder 23 and green emitting phosphor 22, in order to which fluorescent powder is mixed
It closes more evenly, the packaging plastic 21 for being mixed with fluorescent powder can be stirred by special mechanical stirring equipment.Fluorescent powder point exists
Distribution in packaging plastic 21 is more uniform, so that the light that LED backlight 20 is issued is more evenly.The packaging plastic 21 that will be stirred evenly
After being placed in 11 top of green light chip 12 and blue chip, environment temperature can be risen, packaging plastic 21 is made by the way of heat cure
Solidification, the temperature of heat cure for example can be 120 DEG C.
It should be noted that above-mentioned backlight module 100 is in the embodiment of manufacturing method, not to the system of driving circuit 14
The manufacturing process for making process and green light chip 12 and blue chip 11 elaborates, this partial content can refer to existing
There is the related production in technology, the application no longer repeats herein.
Based on the same inventive concept, the application also provides a kind of display module 300, and Figure 10 show the embodiment of the present application institute
A kind of top view of the display module 300 of offer, Figure 11 show a kind of BB ' sectional view of display module 300 in Figure 10, please join
See Figure 10 and Figure 11, which includes backlight module 100 provided by display panel 200 and any of the above-described embodiment,
Display panel 200 includes the color membrane substrates 42 being oppositely arranged and array substrate 41, and it is separate that backlight module 100 is located at array substrate 41
The side of color membrane substrates 42；
Color membrane substrates 42 include color blocking layer 50, and color blocking layer 50 includes the blue color blocking 51 of array arrangement, 52 and of green color blocking
Red color resistance 53；
The light that backlight module 100 issues projects to form emergent light via color blocking layer 50 from the light-emitting surface of display module 300
Line, the chromaticity coordinates of the white point of emergent ray are (Wx, Wy), in which: Wy > Wx, and Wy=0.3847*A+0.1318, wherein A be
Between the peak intensity for the green light that LED backlight in backlight module 100 is issued and the peak intensity of its blue light issued
Ratio, 0.414≤A≤0.6.
It should be noted that Figure 11 only diagrammatically illustrates display panel 200 and backlight module 100 in display module 300
A kind of relative position relation figure, do not represent actual film stack structure, such as may include more in array substrate 41
A film layer, but be not been shown in detail in Figure 11.Backlight module in the embodiment is illustrated by taking side entrance back module as an example,
In some other embodiments of the application, it can also be presented as down straight aphototropism mode set, the application is to this without specifically limiting.
Continuing with referring to Figure 10 and Figure 11, the edge of backlight module 100 and display panel 200 in display module 300 can
It is bonded using shading rubber belt 60, backlight module 100 provides light source to display panel 200.Color membrane substrates 42 in display panel 200
On be provided with color blocking layer 50, color blocking layer 50 includes three primary colors color blocking, i.e. blue color blocking 51, green color blocking 52 and red color resistance 53,
The light that backlight module 100 issues is projected by color blocking layer 50, forms emergent light.In particular, the color of the white point of emergent ray is sat
Ratio A in mark, in light provided by Wy value and backlight module 100 between the peak intensity of green light and the peak intensity of blue light
Form corresponding relationship, specially Wy=0.3847*A+0.1318, wherein 0.414≤A≤0.6.
Specifically, refer to table 1 and Figure 12, Figure 12 show G/B peak intensity than in white point chromaticity coordinates Wy it is corresponding
Relational graph, G/B peak intensity ratio is bigger, i.e. A value is bigger, and Wy value is also bigger in corresponding white point coordinates.Table 1 is conventional LED light
The contrast table in source and the application LED light source white point chromaticity coordinates and transmitance.
The conventional LED light source of table 1 and the application LED light source contrast table
As can be seen from Table 1, after green emitting phosphor is added in LED light source, with the increasing of G intensity (i.e. green intensity)
Greatly, the value of Wy also increases with it in white point chromaticity coordinates, and the influence to Wx value is little.Comprehensively consider table 1 and Figure 12, display module
Wy value depends on the peak intensity of green light and the peak intensity ratio A of blue light in LED light source, this Shen in white point chromaticity coordinates in 300
Please in LED light source increase green emitting phosphor after, peak intensity ratio A becomes larger, and Wy value increases with it.Compared to conventional LED light
For source, after introducing G fluorescent powder, the whole transmitance of display module 300 does not reduce the application, i.e., is not sacrificing transmitance
Under the premise of can increase the value of Wy, when Wy value increases, can be seen that white point coordinates will be to far from blue from gamut map
Direction it is mobile so that the accounting of blue light reduces in the light that display module 300 projects, and then be conducive to reduce blue light pair
It is injured caused by human eye；Make display module meet market mostly under the premise of high colour gamut white point demand simultaneously, improves existing
There is the problem of transmitance is lost in technology.
Optionally, in the white point chromaticity coordinates of light emitted by display module 300 provided by the embodiment of the present application, 0.3
≤ Wy≤0.35, when Wy value between 0.3~0.35 can timing, Wx value is adjustable between 0.285~0.320, corresponds to colour gamut
In figure, so that the corresponding light of white point coordinates is whiter, it can satisfy the most of high colour gamut white point demands in market.
It should be noted that high colour gamut mentioned by the embodiment of the present application refers to that NTSC color threshold range is more than or equal to
95% and be less than or equal to 115%.
Optionally, in display module 300 provided by the embodiment of the present application, blue color blocking 51, green color blocking 52 and red
The mean transmissivity of 53 three of color blocking is more than or equal to 30%.
Specifically, table 2 and table 3 are referred to, color blocking in the application and low in the prior art is shown respectively in table 2 and table 3
The contrast table of the transmitance of color blocking, DCI100%SPEC the and GM SPEC in table respectively represent two different kinds of color blocking.
In table 2, the mean transmissivity of the corresponding red color resistance 53 of the application, green color blocking 52 and blue color blocking 51 has reached 30.43%,
And the mean transmissivity of low color blocking only has 28.18% in the prior art.In table 3, the corresponding red color resistance 53 of the application, green
The mean transmissivity of color blocking 52 and blue color blocking 51 has reached 33.28%, and the mean transmissivity of the total low color blocking of the prior art
Only 29.10%.
The application color blocking and low color blocking contrast table of the table 2 based on DCI100%SPEC
The application color blocking and low color blocking contrast table of the table 3 based on GM SPEC
Consolidated statement 2 and table 3 solve display using the method for reducing red color resistance and blue color blocking transmitance in the prior art
Wy value problem less than normal, sacrifices the transmitance of display module entirety in mould group white point coordinates.And red color is kept in the application
Resistance 53, green color blocking 52 and blue color blocking 51 are high saturating color blocking, improve white point by way of increasing green emitting phosphor 22
The value of Wy in coordinate, therefore the whole transmitance of display module 300 will not be lost, so that display module is made to keep high transmittance,
Be conducive to be promoted the usage experience effect of user.
Based on the same inventive concept, the application also provides a kind of manufacturer of display module 300 in any of the above-described embodiment
Method, 3, Figure 13 show a kind of flow chart of manufacturing method of display module 300 provided by the embodiments of the present application referring to Figure 1,
This method comprises:
Step 301 forms backlight mould using the manufacturing method of backlight module 100 provided in any of the above-described embodiment
The structure of group, backlight module see, for example, Fig. 8；
Step 302, production display panel, the structure of display panel referring to Figure 11, the display panel 200 include opposite set
The color membrane substrates 42 and array substrate 41 set, color membrane substrates 42 include color blocking layer 50, and color blocking layer 50 includes the blue of array arrangement
Color blocking 51, green color blocking 52 and red color resistance 53；
Display panel 200 and backlight module 100 are bonded by step 303, and referring to Figure 11, so that backlight module 100 is located at battle array
Side of the column substrate 41 far from color membrane substrates 42；The light that backlight module 100 issues is via color blocking layer 50 from display module 300
Light-emitting surface projects to form emergent ray, and the chromaticity coordinates of the white point of emergent ray is (Wx, Wy), in which: Wy > Wx, and Wy=
0.3847*A+0.1318, the peak intensity for the green light that wherein A is issued by the LED backlight 20 in backlight module 100 and its institute
Ratio between the peak intensity of the blue light of sending, 0.414≤A≤0.6.
Specifically, incorporated by reference to Figure 13 and Figure 11, in display module made by the above method, blue color in color blocking layer 50
Resistance 51, green color blocking 52 and red color resistance 53 are high saturating color blocking, and mean transmissivity is more than or equal to 30%, that is to say, that this Shen
Please in display module 300 do not reduce the transmitance of each color blocking, be to be carried on the back based on high color blocking thoroughly to the LED in backlight module 100
Light source is improved, and increases green emitting phosphor 22 in LED backlight, is improved in the light that LED backlight is issued
The accounting of green light reduces the accounting of blue light in the light that LED backlight is issued by the promotion of green light accounting, thus favorably
In injury of the reduction blue light to human eye.In addition, the wave crest of the green light issued by LED backlight described in backlight module 100
Ratio A between intensity and the peak intensity of its blue light issued meets 0.414≤A≤0.6, and white in display module 300
Wy=0.3847*A+0.1318 in point chromaticity coordinates, is not added with the mode of green emitting phosphor 22, so that white point compared with prior art
Chromaticity coordinates is improved, therefore, under the premise of being not necessarily to reduces the transmitance of red color resistance and blue color blocking on color membrane substrates,
White point chromaticity coordinates can be effectively promoted, when white point chromaticity coordinates is promoted, is advantageously reduced in the light projected through display module 300
The accounting of blue light, therefore the injury for reducing blue light to human eye is not only improved, and the transmitance of display module 300 will not be sacrificed, it protects
Card display module 300 has preferable display effect.
It should be noted that being related to the production method of display panel 200 in the manufacturing method of above-mentioned display module 300
The content of the prior art can be used, the application no longer repeats herein.
Based on the same inventive concept, the application also provides a kind of display device 400, and Figure 14 show the embodiment of the present application institute
A kind of structural schematic diagram of the display device of offer, the display device 400 include display provided by the application any embodiment
Mould group 300.It should be noted that the embodiment of display device 400 provided herein can be found in any of the above-described display module
300 embodiment, something in common repeat no more.Display device 400 provided herein can be with are as follows: mobile phone, tablet computer, electricity
Depending on any products or components having a display function such as machine, display, laptop, Digital Frame, navigator.
Through the foregoing embodiment it is found that backlight module provided by the invention and manufacturing method, display module and manufacturing method
And display device, at least realize it is following the utility model has the advantages that
In backlight module and manufacturing method provided herein, display module and manufacturing method and display device, carrying on the back
Green emitting phosphor is introduced in the LED backlight of optical mode group, improves the accounting of green light in the light that LED backlight is issued,
The accounting of blue light in the light that LED backlight is issued is reduced by the promotion of green light accounting, to advantageously reduce blue light
Injury to human eye.In addition, when forming display module using above-mentioned backlight module, the LED backlight as described in backlight module
Ratio A between the peak intensity for the green light that source is issued and the peak intensity of its blue light issued meet 0.414≤A≤
0.6, and the Wy=0.3847*A+0.1318 in display module in white point chromaticity coordinates, it is not added with green fluorescence compared with prior art
The mode of powder, so that white point chromaticity coordinates is improved, therefore, without reducing red color resistance and blue color blocking on color membrane substrates
Transmitance under the premise of, can effectively promote white point chromaticity coordinates, when white point chromaticity coordinates promoted when, advantageously reduce through show mould
The accounting of blue light in the light that group projects, therefore the injury for reducing blue light to human eye is not only improved, and display module will not be sacrificed
Transmitance, guarantee that display module and display device have preferable display effect.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (13)
1. a kind of backlight module characterized by comprising backboard, positioned at the backboard side driving circuit and with it is described
The LED backlight of driving circuit electrical connection；
The LED backlight includes: the blue chip for emitting blue light, emits the green light chip of green light and be located at the blue light core
Piece and the green light chip red fluorescence powder and green emitting phosphor far from the backboard side；
Ratio between the peak intensity for the green light that the LED backlight is issued and the peak intensity of its blue light issued is
A, wherein 0.414≤A≤0.6.
2. backlight module according to claim 1, which is characterized in that 0.437≤A≤0.567.
3. backlight module according to claim 1, which is characterized in that the LED backlight further includes packaging plastic, described red
Color fluorescent powder and the green emitting phosphor mixed distribution are in the packaging plastic.
4. backlight module according to claim 1, which is characterized in that the red fluorescence powder is KSF fluorescent powder or nitridation
Object red fluorescence powder；The green emitting phosphor is that nitrifier green phosphor, silicate green fluorescent powder or aluminate green are glimmering
Light powder.
5. backlight module according to claim 4, which is characterized in that the green emitting phosphor and the red fluorescence powder
Doping quality proportioning is 1:5~5:1.
6. a kind of display module, which is characterized in that any backlight module including display panel and claim 1 to 5,
The display panel includes the color membrane substrates being oppositely arranged and array substrate, and it is separate that the backlight module is located at the array substrate
The side of the color membrane substrates；
The color membrane substrates include color blocking layer, and the color blocking layer includes the blue color blocking, green color blocking and red color of array arrangement
Resistance；
The light that the backlight module issues projects to form emergent light via the color blocking layer from the light-emitting surface of the display module
Line, the chromaticity coordinates of the white point of the emergent ray are (Wx, Wy), in which: Wy > Wx, and Wy=0.3847*A+0.1318, wherein
The peak intensity of the peak intensity for the green light that A is issued by the LED backlight in the backlight module and its blue light issued
Between ratio, 0.414≤A≤0.6.
7. display module according to claim 6, which is characterized in that 0.3≤Wy≤0.35.
8. display module according to claim 6, which is characterized in that the blue color blocking, the green color blocking and described
The mean transmissivity of red color resistance three is more than or equal to 30%.
9. a kind of display device, which is characterized in that any display module including claim 6 to 8.
10. it is a kind of claim 1 to 5 it is any as described in backlight module manufacturing method characterized by comprising
Multiple brackets are provided, are respectively formed the blue chip and at least of at least one transmitting blue light in the bottom of each bracket
The green light chip of one transmitting green light, the blue chip are connected with the green light chip-in series；
Red fluorescence powder and green emitting phosphor are mixed in packaging plastic, and are blended with the envelope of red fluorescence powder and green emitting phosphor
Dress glue is packaged in the side of blue chip described in each bracket and the bottom of the green light chip far from the bracket, is formed
LED backlight；Between the peak intensity for the green light that the LED backlight is issued and the peak intensity of its blue light issued
Ratio is A, wherein 0.414≤A≤0.6；
A backboard is provided, the side of the backboard is provided with driving circuit；
Each LED backlight and the driving circuit are bound, so that LED backlight is electrically connected with the driving circuit.
11. the manufacturing method of backlight module according to claim 10, which is characterized in that the red fluorescence powder is KSF
Fluorescent powder or nitride red fluorescent powder；The green emitting phosphor be nitrifier green phosphor, silicate green fluorescent powder or
Aluminate green fluorescent powder；
The doping quality proportioning of the green emitting phosphor and the red fluorescence powder is 1:5~5:1.
12. the manufacturing method of backlight module according to claim 10, which is characterized in that by being mixed with red fluorescence
The mode that the packaging plastic of powder and green emitting phosphor carries out heat cure processing seals the blue chip and the green light chip
Dress.
13. it is a kind of claim 6 to 8 it is any as described in display module manufacturing method characterized by comprising
Backlight module is formed using any provided manufacturing method of claim 10 to 12；
Display panel is made, which includes the color membrane substrates being oppositely arranged and array substrate, and the color membrane substrates include
Color blocking layer, the color blocking layer include the blue color blocking, green color blocking and red color resistance of array arrangement；
Display panel and backlight module are bonded, backlight module is made to be located at one of the array substrate far from the color membrane substrates
Side；The light that the backlight module issues projects to form emergent light via the color blocking layer from the light-emitting surface of the display module
Line, the chromaticity coordinates of the white point of the emergent ray are (Wx, Wy), in which: Wy > Wx, and Wy=0.3847*A+0.1318, wherein
The peak intensity of the peak intensity for the green light that A is issued by the LED backlight in the backlight module and its blue light issued
Between ratio, 0.414≤A≤0.6.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110853586A (en) * | 2019-12-05 | 2020-02-28 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN112271239A (en) * | 2020-10-23 | 2021-01-26 | 开发晶照明（厦门）有限公司 | Light emitting diode and backlight display device |
| CN113741091A (en) * | 2021-08-17 | 2021-12-03 | 惠州视维新技术有限公司 | Backlight module and display device |
| WO2022002208A1 (en) * | 2020-07-01 | 2022-01-06 | 惠州视维新技术有限公司 | Dynamic backlight control method, dynamic backlight module, and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294664A (en) * | 2008-05-29 | 2008-10-29 | 友达光电股份有限公司 | High color temperature LED light source system and manufacturing method thereof |
| CN201354965Y (en) * | 2009-01-07 | 2009-12-02 | 北京巨数数字技术开发有限公司 | Combined type LED light-emitting diode and device thereof |
| CN104730754A (en) * | 2015-02-13 | 2015-06-24 | 厦门天马微电子有限公司 | Liquid crystal display panel |
| CN104810357A (en) * | 2015-04-02 | 2015-07-29 | 信利半导体有限公司 | Display, backlight module and LED light source device |
| CN108332108A (en) * | 2017-11-03 | 2018-07-27 | 佛山市国星光电股份有限公司 | LED component, backlight lamp bar and backlight module |
| CN109301050A (en) * | 2018-08-16 | 2019-02-01 | 佛山市国星光电股份有限公司 | LED white light parts and preparation method thereof, LED backlight mould group |
-
2019
- 2019-07-31 CN CN201910700146.XA patent/CN110456565A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294664A (en) * | 2008-05-29 | 2008-10-29 | 友达光电股份有限公司 | High color temperature LED light source system and manufacturing method thereof |
| CN201354965Y (en) * | 2009-01-07 | 2009-12-02 | 北京巨数数字技术开发有限公司 | Combined type LED light-emitting diode and device thereof |
| CN104730754A (en) * | 2015-02-13 | 2015-06-24 | 厦门天马微电子有限公司 | Liquid crystal display panel |
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