WO2017190621A1 - 彩膜、基板及显示装置 - Google Patents

彩膜、基板及显示装置 Download PDF

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Publication number
WO2017190621A1
WO2017190621A1 PCT/CN2017/082148 CN2017082148W WO2017190621A1 WO 2017190621 A1 WO2017190621 A1 WO 2017190621A1 CN 2017082148 W CN2017082148 W CN 2017082148W WO 2017190621 A1 WO2017190621 A1 WO 2017190621A1
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Prior art keywords
color film
light
absorbing pigment
pigment
color
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PCT/CN2017/082148
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English (en)
French (fr)
Inventor
周婷婷
张斌
何晓龙
齐永莲
王久石
Original Assignee
京东方科技集团股份有限公司
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Priority to US15/572,458 priority Critical patent/US20180239196A1/en
Publication of WO2017190621A1 publication Critical patent/WO2017190621A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/201—Filters in the form of arrays
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • 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 
    • G02F1/015—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 semiconductor elements having potential barriers, e.g. having a PN or PIN junction
    • G02F1/017—Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/60—Pleochroic dyes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
    • C09K2323/03—Viewing layer characterised by chemical composition
    • 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 
    • G02F1/015—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 semiconductor elements having potential barriers, e.g. having a PN or PIN junction
    • G02F1/017—Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells
    • G02F1/01791—Quantum boxes or quantum dots
    • 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
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/36—Micro- or nanomaterials

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a color film, a substrate, and a display device.
  • the liquid crystal display device since the liquid crystal molecules themselves do not emit light, an additional backlight is required to provide a light source for the display device. Since the quantum dots in the quantum dot backlight can emit fluorescence under photoexcitation, the half-peak width of the luminescence spectrum is narrow, the color is high, the fluorescence quantum yield is high, and the luminescence spectrum can be adjusted in the visible region and near by adjusting the quantum dot size. The infrared region changes, and therefore, quantum dot backlights have been widely used in liquid crystal display devices in recent years. However, when the light emitted by the quantum dot backlight passes through a common color film, the problem of a decrease in color purity may occur.
  • the present disclosure provides a color film, a substrate, and a display device.
  • a color film for transmitting light of one color of three primary colors, wherein the color film comprises a first absorption pigment and a second absorption pigment, and an absorption spectrum range of the first absorption pigment and The absorption spectrum range of the second absorbing pigment corresponds to the spectral band of the light of the other two colors of the three primary colors, respectively.
  • the three primary colors are red, green, and blue.
  • the light comprising the three primary colors is emitted by a white light quantum dot source.
  • the first absorbing pigment and/or the second absorbing pigment are organic pigments.
  • the absorption spectrum of the first absorbing pigment corresponds to a spectral band of red light
  • the molecular structure of the first absorbing pigment is:
  • the absorption spectrum of the first absorbing pigment corresponds to a spectral band of blue light
  • the molecular structure of the first absorbing pigment is:
  • the absorption spectrum of the first absorbing pigment and the spectral wavelength of the green ray is:
  • the sum of the mass percentages of the first absorbing pigment and the second absorbing pigment in the color film is from 5% to 40%.
  • the color film further includes a resin, a monomer containing an unsaturated double bond, a photoinitiator, a silicon coupling agent, an adjuvant, and a solvent.
  • the color film may include a first sub-color film and a second sub-color film disposed in a stack; the first sub-color film includes the first absorption pigment, and the second sub-color film includes Said second absorbing pigment.
  • the first sub-color film has a mass percentage of the first absorbing pigment of 5% to ⁇ 40%
  • the second absorbing pigment in the second sub-color film has a mass percentage of 5% to 40%.
  • a substrate comprising the color film described above is provided.
  • a display device includes a backlight, an array substrate, a counter substrate, and a liquid crystal layer between the array substrate and the counter substrate; wherein the array substrate or the pair of substrates includes the color membrane.
  • the backlight is a white light quantum dot backlight.
  • the color film included in the array substrate or the counter substrate includes Three color films of light of one color in three primary colors.
  • the color film contained in the array substrate or the counter substrate includes a red color film, a green color film, and a blue color film.
  • FIG. 1( a ) is a light-emitting spectrum of a quantum dot backlight and a light-transmitting spectrum of blue light provided by the prior art;
  • FIG. 1(b) is a light-emitting spectrum of a quantum dot backlight and a light-transmitting spectrum of green light provided by the prior art;
  • FIG. 2 is a schematic structural view of a color film according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram 1 of a display device according to an embodiment of the present disclosure.
  • FIG. 4 is a second schematic structural diagram of a display device according to an embodiment of the present disclosure.
  • FIG. 5 is a spectrum diagram of light emitted by a quantum dot backlight according to an embodiment of the present disclosure
  • 6(a) is an absorption spectrum diagram of a blue light absorbing pigment provided by an embodiment of the present disclosure
  • 6(b) is an absorption spectrum diagram of a green light-absorbing pigment provided by an embodiment of the present disclosure
  • 6(c) is an absorption spectrum diagram of a red light absorbing pigment according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram 3 of a display device according to an embodiment of the present disclosure.
  • FIG. 8 is a spectrum diagram of light emitted from a color film according to an embodiment of the present disclosure.
  • Light-emitting spectrum of 10-quantum dot backlight 20-blue light transmission spectrum; 30-green light transmission spectrum; 40-color film; 401-red color film; 402-green color film; 403-blue color film; the first Sub-color film; 60-second sub-color film; 70-array substrate; 80-to-box substrate; 90-backlight; 100-liquid crystal layer.
  • Quantum dot backlights have been used in the field of liquid crystal display, but when light emitted by a quantum dot backlight passes through a common color film, there may be a problem of light leakage that is different from the color of the color film used.
  • 10 is a spectrum of light emitted by a quantum dot backlight
  • 20 is a blue light transmission spectrum, and more light is emitted when light emitted from an equivalent sub-point backlight passes through a blue color film.
  • Light leakage, affecting the color purity of blue light; as shown in Figure 1 (b), 30 is the green light transmission spectrum, when the light emitted by the equivalent sub-point backlight passes through the green color film, there will be red and blue light from the green color film. Leakage causes the color purity of the green light to decrease, thereby affecting the overall color gamut of the display device.
  • the present disclosure provides a color film that can transmit light of one of the three primary colors, and the light of the other two colors can be absorbed by the first absorbing pigment and the second absorbing pigment, respectively, and the first absorbing pigment
  • the absorption spectrum range and the absorption spectrum range of the second absorbing pigment respectively correspond to the spectral bands of the other two colors of the three primary colors, and therefore, when the light containing the three primary colors is directed to the color film, the light of one color can be transmitted through
  • the other two kinds of light can be absorbed, thereby increasing the color purity of the light transmitted from the color film and improving the color gamut.
  • a color film for transmitting light of one of three primary colors comprising a first absorbing pigment and a second absorbing pigment, absorption of the first absorbing pigment
  • the spectral range and the absorption spectrum range of the second absorbing pigment correspond to the spectral bands of the other two colors of the three primary colors, respectively.
  • the color film provided by the embodiment of the present disclosure is preferably applied to a device in which the backlight is a quantum dot backlight.
  • the three primary colors may be red, blue, and green, or may be cyan, magenta, and yellow, which is not limited in this disclosure.
  • the above three primary colors are red, green, and blue.
  • the first absorbing pigment and the second absorbing pigment in the color film are respectively used to absorb blue light and green light.
  • the absorption spectrum of the blue absorption light of the first absorption pigment corresponds to the spectral wavelength band of the blue light
  • the absorption spectrum range of the green absorption light of the second absorption pigment corresponds to the spectral wavelength band of the green light
  • the first absorbing pigment and the second absorbing pigment in the color film are respectively used for absorbing blue light and red light
  • the absorption spectrum of the blue absorbing light of the first absorbing pigment corresponds to the spectral band of the blue light
  • the second absorbing pigment is The absorption spectrum range of absorbing red light corresponds to the spectral wavelength band of red light; when the color film is used for transmitting blue light, the first absorbing pigment and the second absorbing pigment in the color film are
  • the first absorbing pigment and the second absorbing pigment are not limited, and may be an organic pigment or an inorganic pigment, so that light of two colors other than the transmitted light of the three primary colors can be absorbed. quasi.
  • the organic pigment is inexpensive and easy to prepare, it is relatively easy to change the position and half width of the maximum absorption wavelength in the absorption spectrum by changing the functional group in the molecular structure of the organic pigment, and has better compatibility with the resin in the color film. It is also easily soluble in the solvent of the color film, and therefore, it is preferred that the above pigment is an organic pigment.
  • the color film includes, in addition to the first light absorbing pigment and the second light absorbing pigment, a resin, a monomer containing an unsaturated double bond, a photoinitiator, a silicon coupling agent, an auxiliary agent, a solvent, and the like. These components may be the same as the corresponding components in a conventional color film.
  • the color film may be disposed in a layer including the first absorbing pigment and the second absorbing pigment; of course, the color film may be disposed in two layers, one layer including the first absorbing pigment and the other layer including the second layer. Absorbs pigments.
  • the color film 40 includes a first sub-layer.
  • the position of the first sub-color film 50 and the second sub-color film 60 is not limited, and the first sub-color film 50 may be disposed on the top, and the second sub-color film 60 may be disposed on the bottom; The sub-color film 50 is disposed below, and the second sub-color film 60 is disposed thereon.
  • the color film 40 includes a first sub-color film 50 and a second sub-color film 60 which are stacked, and the first sub-color film 50 includes a first absorbing pigment, and the second sub-color film 60 includes a second absorbing pigment.
  • the first sub-color film 50 since the first sub-color film 50 includes the first absorbing pigment, light of one of the three primary colors can be absorbed; when the light is incident on the second sub-color film 60
  • the second sub-color film 60 includes the second absorbing pigment, the light of the other color of the three primary colors can be absorbed, so that when the light is emitted from the color film 40, only one color of light can pass through.
  • the color film 40 includes two layers, it is possible to sufficiently absorb light of two colors other than the light transmitted through the color film 40 among the three primary colors, so that the color purity of the light transmitted from the color film 40 is further improved.
  • the absorption spectrum of the first absorbing pigment may correspond to the spectral band of red light, and the molecular structure of the first absorbing pigment is:
  • the first absorbing pigment can absorb red light, and on the basis of this, adjust R 1 and/or R 2 , or R in the molecular structural formula of the first absorbing pigment. 3 and/or R 4 may adjust the position and the half width of the maximum absorption wavelength in the absorption spectrum of the first absorbing pigment absorbing red light.
  • the absorption spectrum of the first absorbing pigment may correspond to the spectral band of the blue ray, and the molecular structure of the first absorbing pigment is:
  • the first absorbing pigment can absorb blue light, and on the basis of this, adjusting R 5 and/or R 6 in the molecular structural formula of the first absorbing pigment can absorb blue light. The position of the maximum absorption wavelength and the half width of the absorption spectrum of the first absorbing pigment are adjusted.
  • the absorption spectrum of the first absorbing pigment may correspond to the spectral band of the green ray, and the molecular structure of the first absorbing pigment is:
  • the first absorbing pigment can absorb green light, and on the basis of this, the R 7 and/or R 8 in the molecular structural formula of the first absorbing pigment can be adjusted to absorb The position and half width of the maximum absorption wavelength in the absorption spectrum of the first absorption pigment of green light are adjusted.
  • the absorption of red light, green light and blue light is mainly related to the number of conjugated double bonds, the electron donating group and the electron withdrawing group in the molecular structural formula of the first absorbing pigment, and thus
  • the molecular structural formula of the first absorbing pigment absorbing red light, green light, and blue light is not limited to the molecular structural formula of the first absorbing pigment described above, and may further include a certain number of conjugated double bonds, electron donating groups, and The first absorbing pigment of the electron withdrawing group.
  • the molecular structure of the second absorbing pigment absorbing red light, green light or blue light may be the same as the molecular structure of the first absorbing pigment absorbing red light, green light and blue light, of course, the second absorbing pigment absorbs red light, green light and The molecular structure of the blue light and the first absorbing pigment may also be different as long as the second absorbing pigment absorbs red or blue light or green light. Based on this, the peak height of the absorption spectrum of the first absorbing pigment and the second absorbing pigment can also be adjusted by adjusting the mass percentage of the first absorbing pigment and the second absorbing pigment.
  • the first absorbing pigment and the second absorbing pigment may also be inorganic pigments.
  • the corresponding inorganic pigment may be added according to the wavelength band of light to be absorbed.
  • the element in the inorganic pigment and the particle size of the inorganic pigment are adjusted to adjust the position and half width of the maximum absorption wavelength of the absorption spectrum of the inorganic pigment.
  • the color film 40 in the case where the color film 40 is a layer, the sum of the mass percentages of the first absorbing pigment and the second absorbing pigment is 5% to 40%; and the color film 40 includes the cascading setting
  • the first absorbing color of the first sub-color film 50 is 5% to 40% by mass
  • the second sub-color film 50 is second.
  • the mass percentage of the absorbing pigment is 5% to 40%.
  • the mass percentage of each of the first absorbing pigment and the second absorbing pigment is not limited as long as the sum of the mass percentages of the first absorbing pigment and the second absorbing pigment is It may be 5% to 40%, and the mass percentage of the first absorbing pigment and the second absorbing pigment may be the same or different. Specifically, the mass percentage of the first absorbing pigment and the second absorbing pigment can be adjusted correspondingly according to the amount of two kinds of light that need to be absorbed in the three primary colors of light.
  • the mass percentages of other components in the color film 40 are: resin: 5% to 45%, monomer containing unsaturated double bond: 0.5% to 18%, photoinitiator: 0.1% ⁇ 3%, silicon coupling agent: 0.1% to 7%, auxiliary agent: 0.1% to 1%, solvent: 40% to 85%.
  • the first absorbing pigment, the second absorbing pigment and the above components in the color film 40 together enable the color film 40 to transmit light of one color of the three primary colors simultaneously with the other two colors.
  • the light is absorbed to increase the color purity of the light emitted from the color film 40 and to increase the color gamut.
  • the mass percentage of the first absorbing pigment and the second absorbing pigment in the color film 40 when the mass percentage of the first absorbing pigment and the second absorbing pigment in the color film 40 is too small, the light absorption of the two colors that need to be absorbed in the three primary colors may be incomplete, when the color film is When the mass percentage of the first absorbing pigment and the second absorbing pigment in 40 is too large, the content of other components in the color film 40 is reduced, which may cause the light for transmission to be not normally transmitted.
  • a substrate comprising the color film 40 described above.
  • the substrate is not limited, and may be, for example, an array substrate or a counter substrate.
  • the color film 40 When used in a liquid crystal display, the color film 40 may be located on the side of the array substrate or the counter substrate facing the liquid crystal layer.
  • the color film 40 on the substrate can transmit light of one of the three primary colors
  • the light of the other two colors can be absorbed by the first absorbing pigment and the second absorbing pigment, respectively, and the absorption spectrum range of the first absorbing pigment and The absorption spectrum range of the second absorbing pigment corresponds to the spectral band of the light of the other two colors in the three primary colors, respectively, and therefore, when the light containing the three primary colors is directed to the color film, the light of one color can pass through, and the other Both lights can be sucked
  • the color purity of the light transmitted from the color film 40 can be increased, and the color gamut is improved.
  • a display device including an array substrate 70, a counter substrate 80, a backlight 90, and an array substrate 70 and a counter substrate 80.
  • the liquid crystal layer 100 is in between; the array substrate 70 or the counter substrate 80 includes the color film 40 described above.
  • the color film 40 may be disposed on the counter substrate 80 as shown in FIG. 3, or may be disposed on the array substrate 70 as shown in FIG. Preferably, the color film 40 is located on the side of the array substrate 70 or the counter substrate 80 facing the liquid crystal layer 100.
  • the blue light emission peak, the green light emission peak, and the red light emission peak are separated from each other, so that the first can be utilized.
  • the absorbing pigment and the second absorbing pigment absorb light of two of the three primary colors without affecting other light, and thus the backlight 90 is preferably a white light quantum dot backlight.
  • the spectrum of the light emitted by the quantum dot backlight is as shown in FIG. 5.
  • the absorption spectrum of the first absorption pigment and the second absorption pigment absorbing blue light is as shown in FIG. 6(a), and the first absorption pigment and the second absorption pigment are absorbed.
  • the absorption spectrum of green light is as shown in Fig. 6(b), and the absorption spectrum of the first absorption pigment and the second absorption pigment absorbing red light is as shown in Fig. 6(c).
  • the display device includes three color films as shown in FIG. 7, the three color films are a red color film 401, a green color film 402, and a blue color film 403, wherein the red color film 401 can transmit red light and red color.
  • the first absorbing pigment and the second absorbing pigment in the film respectively absorb blue light and green light; the blue color film 403 can transmit blue light, and the first absorbing pigment and the second absorbing pigment in the blue color film respectively align with red light and The green light absorbs; the green color film 402 transmits green light, and the first absorbing pigment and the second absorbing pigment in the green color film absorb red light and blue light, respectively.
  • any one of the red color film 401, the green color film 402, and the blue color film 403 may include a first sub color film and a second sub color film which are disposed in a stack, and the first and second absorption pigments may be respectively included in the first And the second sub-color film.
  • the first absorbing pigment and the second absorbing pigment in the blue color film 403 absorb the red light and the green light, respectively, as shown in FIG.
  • the luminescence peak of the blue light emitted from the blue color film 403 has a narrower half-width and a higher color purity; when the light emitted by the equivalent sub-point backlight passes through the green color film 402, the green color film 402
  • the first absorbing pigment and the second absorbing pigment respectively absorb red light and blue light, as shown by the intermediate luminescence peak in Fig.
  • the half-peak width of the luminescent peak emitted by the green light of 402 is narrower and the color purity is higher; when the light emitted by the backlight of the equivalent sub-point passes through the red color film 401, the first absorbing pigment and the second absorbing pigment in the red color film 401 The green light and the blue light are respectively absorbed, and as shown by the light-emitting peak on the right side in FIG. 8, the half-width of the light-emitting peak of the red light emitted from the red color film 401 is narrower.

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Abstract

提供了一种彩膜（40）、基板及显示装置。彩膜（40）用于透过三原色中的一种颜色的光，包括第一吸收颜料和第二吸收颜料，第一吸收颜料的吸收谱范围和第二吸收颜料的吸收谱范围分别与三原色中的其它两种颜色的光的光谱波段对应。

Description

彩膜、基板及显示装置
交叉引用
本公开要求2016年5月6日提交的中国专利申请No.201610299368.1的优先权权益，该中国专利申请的全部内容通过引用结合在此。
技术领域
本公开涉及显示技术领域，尤其涉及一种彩膜、基板及显示装置。
背景技术
在液晶显示装置中，由于液晶分子本身并不发光，所以需要额外的背光源为显示装置提供光源。由于量子点背光源中的量子点在光激发下可以发出荧光，其发光光谱的半峰宽窄，色彩高，荧光量子产率高，并且可以通过调节量子点尺寸使其发光光谱在可见光区和近红外区变化，因此，量子点背光源近年来在液晶显示装置中得到了广泛的应用。然而，由量子点背光源发出的光在通过普通彩膜时，可能会出现色纯度降低的问题。
发明内容
本公开提供一种彩膜、基板及显示装置。
第一方面，提供一种彩膜，用于透过三原色中的一种颜色的光，其中所述彩膜包括第一吸收颜料和第二吸收颜料，所述第一吸收颜料的吸收谱范围和所述第二吸收颜料的吸收谱范围分别与三原色中的其它两种颜色的光的光谱波段对应。
在某些实施方案中，三原色为红色、绿色、蓝色。
在某些实施方案中，包含三原色的光是由白光量子点光源发出的。
在某些实施方案中，第一吸收颜料和/或第二吸收颜料为有机颜料。
在某些实施方案中，第一吸收颜料的吸收谱范围与红光的光谱波段对应，所述第一吸收颜料的分子结构式为：
Figure PCTCN2017082148-appb-000001
其中，R1和R2各自独立地选自-H，-(CH2)n-CH3(n＝0-10)，-CH2(CH2)nOH(n＝0-10)，
Figure PCTCN2017082148-appb-000002
Figure PCTCN2017082148-appb-000003
中的一种；R3和R4各自独立地选自-H，-(CH2)n-CH3(n＝0-11)，-O-(CH2)n-CH3(n＝0-11)，-O-Si(CH3)2-Si(CH3)3，5-O-Si(CH3)3，
Figure PCTCN2017082148-appb-000004
中的一种。
在某些实施方案中，第一吸收颜料的吸收谱范围与蓝光的光谱波段对应，所述第一吸收颜料的分子结构式为：
Figure PCTCN2017082148-appb-000005
其中，R5和R6各自独立地选自-H，-(CH2)n-CH3(n＝0-10)，-CH2(CH2)nOH(n＝0-10)，
Figure PCTCN2017082148-appb-000006
Figure PCTCN2017082148-appb-000007
中的一种。
在某些实施方案中，第一吸收颜料的吸收谱范围与绿光的光谱波 段对应，所述第一吸收颜料的分子结构式为：
Figure PCTCN2017082148-appb-000008
其中，R7和R8各自独立地选自-H，-(CH2)n-CH3(n＝0-10)，-CH2(CH2)nOH(n＝0-10)，
Figure PCTCN2017082148-appb-000009
Figure PCTCN2017082148-appb-000010
中的一种。
在某些实施方案中，彩膜中第一吸收颜料和第二吸收颜料的质量百分含量之和为5％～40％。
在某些实施方案中，彩膜还包括树脂、含不饱和双键的单体、光引发剂、硅偶联剂、助剂和溶剂。
在某些实施方案中，彩膜可以包括层叠设置的第一子彩膜和第二子彩膜；所述第一子彩膜包括所述第一吸收颜料，所述第二子彩膜包括所述第二吸收颜料。
在某些实施方案中，在彩膜包括层叠设置的第一子彩膜和第二子彩膜的情况下，所述第一子彩膜中第一吸收颜料的质量百分含量为5％～40％，所述第二子彩膜中第二吸收颜料的质量百分含量为5％～40％。
第二方面，提供一种基板，包括上述的彩膜。
第三方面，提供一种显示装置，包括背光源、阵列基板、对盒基板和位于阵列基板和对盒基板之间的液晶层；其中，所述阵列基板或所述对盒基板包括上述的彩膜。
在某些实施方案中，背光源为白光量子点背光源。
在某些实施方案中，阵列基板或对盒基板所含的彩膜包括分别透 过三原色中的一种颜色的光的三种彩膜。
在某些实施方案中，阵列基板或对盒基板所含的彩膜包括红色彩膜、绿色彩膜和蓝色彩膜。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1(a)为现有技术提供的一种量子点背光源的发光光谱及蓝光的透光光谱；
图1(b)为现有技术提供的一种量子点背光源的发光光谱及绿光的透光光谱；
图2为本公开实施例提供的一种彩膜的结构示意图；
图3为本公开实施例提供的一种显示装置的结构示意图一；
图4为本公开实施例提供的一种显示装置的结构示意图二；
图5为本公开实施例提供的一种量子点背光源发出光的光谱图；
图6(a)为本公开实施例提供的一种吸收蓝光的颜料的吸收光谱图；
图6(b)为本公开实施例提供的一种吸收绿光的颜料的吸收光谱图；
图6(c)为本公开实施例提供的一种吸收红光的颜料的吸收光谱图；
图7为本公开实施例提供的一种显示装置的结构示意图三；
图8为本公开实施例提供的一种从彩膜出射的光的光谱图。
附图标记：
10-量子点背光源的发光光谱；20-蓝光透过光谱；30-绿光透过光谱；40-彩膜；401-红色彩膜；402-绿色彩膜；403-蓝色彩膜；50-第一 子彩膜；60-第二子彩膜；70-阵列基板；80-对盒基板；90-背光源；100-液晶层。
具体实施方式
下面将结合附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
量子点背光源已经应用于液晶显示领域，但由量子点背光源发出的光在通过普通彩膜时，可能会出现与所用彩膜颜色不同的光漏出的问题。示例的，如图1(a)所示，10为量子点背光源发出光的光谱，20为蓝光透过光谱，当量子点背光源发出的光通过蓝色彩膜时，会有较多的绿光漏出，影响蓝光的色纯度；如图1(b)所示，30为绿光透过光谱，当量子点背光源发出的光通过绿色彩膜时，会有红光和蓝光从绿色彩膜漏出，使得绿光的色纯度降低，从而影响了显示装置的整体色域。
本公开提供一种彩膜，该彩膜可以使三原色中的一种颜色的光透过，其它两种颜色的光可以分别被第一吸收颜料和第二吸收颜料吸收，且第一吸收颜料的吸收谱范围和第二吸收颜料的吸收谱范围分别与三原色中的其它两种颜色的光的光谱波段对应，因此，当包含有三原色的光射向彩膜后，除一种颜色的光可以透过外，其它两种光都可以被吸收，因而便可以增加从彩膜透过的光的色纯度，提高了色域。
在根据本公开第一方面的实施方式中，提供一种彩膜，用于透过三原色中的一种颜色的光，彩膜包括第一吸收颜料和第二吸收颜料，第一吸收颜料的吸收谱范围和第二吸收颜料的吸收谱范围分别与三原色中的其它两种颜色的光的光谱波段对应。
需要说明的是，第一，为了确保光从彩膜出射时，只有一种颜色的光可以透过，第一吸收颜料和第二吸收颜料也只对与其吸收谱范围对应的其它两种颜色的光进行吸收，因而射向彩膜的三种颜色的光的发光峰应该是相互分开的。基于此，由于量子点背光源发出光的光谱中的不同颜色的光的发光峰是相互分开的，因而，本公开实施例提供的彩膜优选应用在背光源为量子点背光源的装置中。
第二，三原色可以分别为红色、蓝色以及绿色，或者还可以为青色、品红色以及黄色，本公开对此不做限定。例如，上述三原色为红色、绿色、蓝色。
示例的，在三原色分别为红色、绿色和蓝色的情况下，当所述彩膜用于透过红光时，彩膜中的第一吸收颜料和第二吸收颜料分别用于吸收蓝光和绿光，且第一吸收颜料的吸收蓝光的吸收谱范围与蓝光的光谱波段对应，第二吸收颜料的吸收绿光的吸收谱范围与绿光的光谱波段对应；当所述彩膜用于透过绿光时，彩膜中的第一吸收颜料和第二吸收颜料分别用于吸收蓝光和红光，且第一吸收颜料的吸收蓝光的吸收谱范围与蓝光的光谱波段对应，第二吸收颜料的吸收红光的吸收谱范围与红光的光谱波段对应；当所述彩膜用于透过蓝光时，彩膜中的第一吸收颜料和第二吸收颜料分别用于吸收绿光和红光，且第一吸收颜料的吸收绿光的吸收谱范围与绿光的光谱波段对应，第二吸收颜料的吸收红光的吸收谱范围与红光的光谱波段对应。
第三，对于第一吸收颜料和第二吸收颜料不进行限定，可以是有机颜料，也可以是无机颜料，以能分别对三原色中除透过的光以外的其它两种颜色的光进行吸收为准。
由于有机颜料价格便宜，容易制备，比较容易通过更改有机颜料分子结构中的官能团来改变吸收谱中最大吸收波长的位置和半峰宽，且与彩膜中的树脂有比较好的相容性，也易溶于彩膜的溶剂中，因而优选的，上述颜料为有机颜料。
在此基础上，对于彩膜中第一吸收颜料和第二吸收颜料的含量，应确保可以对三原色中除透过光以外的两种颜色光完全吸收的同时，不会影响透过光的正常透过。
第四，彩膜除包括第一吸光颜料和第二吸光颜料外，还包括树脂、含不饱和双键的单体、光引发剂、硅偶联剂、助剂、溶剂等组分。这些组分可以与普通彩膜中的相应组分相同。
第五，彩膜可以设置成一层，该层中包括第一吸收颜料和第二吸收颜料；当然也可以是，彩膜设置成两层，一层包括第一吸收颜料，另一层包括第二吸收颜料。
在一个实施例中，如图2所示，彩膜40包括层叠设置的第一子 彩膜50和第二子彩膜60；第一子彩膜50包括第一吸收颜料，第二子彩膜60包括第二吸收颜料。
其中，对于第一子彩膜50和第二子彩膜60的设置位置不进行限定，可以是第一子彩膜50设置在上，第二子彩膜60设置在下；当然也可以是第一子彩膜50设置在下，第二子彩膜60设置在上。
本实施例中，彩膜40包括层叠设置的第一子彩膜50和第二子彩膜60，且第一子彩膜50包括第一吸收颜料，第二子彩膜60包括第二吸收颜料。当光射入第一子彩膜50时，由于第一子彩膜50中包括第一吸收颜料，因而可以对三原色中的一种颜色的光进行吸收；当光射入第二子彩膜60时，由于第二子彩膜60中包括第二吸收颜料，因而可以对三原色光的另一种颜色的光进行吸收，从而使得光从彩膜40出射时，只有一种颜色的光可以透过。由于彩膜40包括两层，因而可以对三原色中除透过彩膜40的光以外的其它两种颜色的光进行充分吸收，以使从彩膜40透过的光的色纯度进一步提高。
在某些实施方案中，第一吸收颜料的吸收谱范围可以与红光的光谱波段对应，第一吸收颜料的分子结构式为：
Figure PCTCN2017082148-appb-000011
其中，R1和R2各自独立地选自-H，-(CH2)n-CH3(n＝0-10)，-CH2(CH2)nOH(n＝0-10)，
Figure PCTCN2017082148-appb-000012
Figure PCTCN2017082148-appb-000013
中的一种；R3和R4各自独立地选自-H，-(CH2)n-CH3(n＝0-11)，-O-(CH2)n-CH3(n＝0-11)，-O-Si(CH3)2-Si(CH3)3，-O-Si(CH3)3，
Figure PCTCN2017082148-appb-000014
中的一种。
当第一吸收颜料的分子结构式为上述分子结构式时，第一吸收颜料可以对红光进行吸收，在此基础上，调节第一吸收颜料的分子结构式中的R1和/或R2、或R3和/或R4可以对吸收红光的第一吸收颜料的吸收谱中最大吸收波长的位置和半峰宽进行调节。
在某些实施方案中，第一吸收颜料的吸收谱范围可以与蓝光的光谱波段对应，第一吸收颜料的分子结构式为：
Figure PCTCN2017082148-appb-000015
其中，R5和R6各自独立地选自-H，-(CH2)n-CH3(n＝0-10)，-CH2(CH2)nOH(n＝0-10)，
Figure PCTCN2017082148-appb-000016
Figure PCTCN2017082148-appb-000017
中的一种。
当第一吸收颜料的分子结构式为上述分子结构式时，第一吸收颜料可以对蓝光进行吸收，在此基础上，调节第一吸收颜料的分子结构式中的R5和/或R6可以对吸收蓝光的第一吸收颜料的吸收谱中最大吸收波长的位置和半峰宽进行调节。
在某些实施方案中，第一吸收颜料的吸收谱范围可以与绿光的光谱波段对应，第一吸收颜料的分子结构式为：
Figure PCTCN2017082148-appb-000018
其中，R7和R8各自独立 地选自-H，-(CH2)n-CH3(n＝0-10)，-CH2(CH2)nOH(n＝0-10)，
Figure PCTCN2017082148-appb-000019
Figure PCTCN2017082148-appb-000020
中的一种。
当第一吸收颜料的分子结构式为上述分子结构式时，第一吸收颜料可以对绿光进行吸收，在此基础上，调节第一吸收颜料的分子结构式中的R7和/或R8可以对吸收绿光的第一吸收颜料吸收谱中最大吸收波长的位置和半峰宽进行调节。
需要说明的是，本领域技术人员应该明白，吸收红光、绿光和蓝光主要与第一吸收颜料的分子结构式中的共轭双键的数量、给电子基团和吸电子基团有关，因而本公开中，吸收红光、绿光和蓝光的第一吸收颜料的分子结构式并不限于上述的第一吸收颜料的分子结构式，还可以是其它包括一定数量共轭双键、给电子基团及吸电子基团的第一吸收颜料。此外，第二吸收颜料的吸收红光、绿光或蓝光的分子结构式可以和第一吸收颜料的吸收红光、绿光和蓝光的分子结构式相同，当然第二吸收颜料吸收红光、绿光和蓝光的分子结构式和第一吸收颜料也可以不同，只要第二吸收颜料能对红光或蓝光或绿光进行吸收即可。基于此，通过调节第一吸收颜料和第二吸收颜料的质量百分含量，还可以调节第一吸收颜料和第二吸收颜料的吸收谱的峰高。
在此基础上，第一吸收颜料和第二吸收颜料也可以为无机颜料，当第一吸收颜料和第二吸收颜料为无机颜料时，可以根据需要吸收的光的波段加入相应的无机颜料，通过调节无机颜料中的元素以及无机颜料的颗粒大小来调节无机颜料吸收谱最大吸收波长的位置和半峰宽。
在某些实施方案中，在彩膜40为一层的情况下，第一吸收颜料和第二吸收颜料的质量百分含量之和为5％～40％；在彩膜40包括层叠设置的第一子彩膜50和第二子彩膜60的情况下，第一子彩膜50中第一吸收颜料的质量百分含量为5％～40％，第二子彩膜50中第二 吸收颜料的质量百分含量为5％～40％。
其中，在彩膜40为一层的情况下，对于第一吸收颜料和第二吸收颜料各自的质量百分含量不进行限定，只要第一吸收颜料和第二吸收颜料的质量百分含量之和为5％～40％即可，第一吸收颜料和第二吸收颜料的质量百分含量可以相同，也可以不同。具体可以根据三原色光中需要吸收的两种光的量相应调节第一吸收颜料和第二吸收颜料的质量百分含量。
在此基础上，彩膜40中其它各组分的质量百分含量分别为：树脂：5％～45％、含不饱和双键的单体：0.5％～18％、光引发剂：0.1％～3％、硅偶联剂：0.1％～7％、助剂：0.1％～1％、溶剂：40％～85％。
本公开实施例中，彩膜40中的第一吸收颜料、第二吸收颜料和上述组分，共同使得彩膜40在透过三原色中的一种颜色的光同时，可以对其它两种颜色的光进行吸收，以增加从彩膜40出射的光的色纯度，提高色域。
本公开实施例中，当彩膜40中第一吸收颜料和第二吸收颜料的质量百分含量过少时，可能会对三原色光中需要吸收的两种颜色的光吸收的不完全，当彩膜40中第一吸收颜料和第二吸收颜料的质量百分含量过多时，彩膜40中其它组分的含量便会减少，这样可能会导致用于透过的光不能正常透过。
在根据本公开第二方面的实施方式中，提供一种基板，其包括上述的彩膜40。
其中，对于上述基板不进行限定，例如可以是阵列基板，也可以是对盒基板。
在用于液晶显示器时，彩膜40可以位于阵列基板或对盒基板面对液晶层的一侧上。
由于基板上的彩膜40可以使三原色中的一种颜色的光透过，其它两种颜色的光可以分别被第一吸收颜料和第二吸收颜料吸收，且第一吸收颜料的吸收谱范围和第二吸收颜料的吸收谱范围分别与三原色中的其它两种颜色的光的光谱波段对应，因此，当包含有三原色的光射向彩膜后，除一种颜色的光可以透过外，其它两种光都可以被吸 收，因而便可以增加从彩膜40透过的光的色纯度，提高了色域。
在根据本公开第三方面的实施方式中，提供一种显示装置，如图3和图4所示，包括阵列基板70、对盒基板80、背光源90和位于阵列基板70和对盒基板80之间的液晶层100；其中，阵列基板70或对盒基板80包括上述的彩膜40。
其中，彩膜40可以是如图3所示设置在对盒基板80上，也可以是如图4所示设置在阵列基板70上。优选地，彩膜40位于阵列基板70或对盒基板80面对液晶层100的一侧上.
由于在量子点发出光的光谱10中，如图1(a)和图1(b)所示，蓝光发光峰、绿光发光峰和红光发光峰之间是相互分开的，因此可以利用第一吸收颜料和第二吸收颜料对三原色中的两种颜色的光进行吸收，而不会影响其它光，因而背光源90优选为白光量子点背光源。
示例的，量子点背光源发出光的光谱如图5所示，第一吸收颜料和第二吸收颜料吸收蓝光的吸收谱如图6(a)所示，第一吸收颜料和第二吸收颜料吸收绿光的吸收谱如图6(b)所示，第一吸收颜料和第二吸收颜料吸收红光的吸收谱如图6(c)所示。当显示装置如图7所示包括三种彩膜时，三种彩膜分别为红色彩膜401、绿色彩膜402和蓝色彩膜403，其中红色彩膜401可以使红光透过，红色彩膜中的第一吸收颜料和第二吸收颜料分别对蓝光和绿光进行吸收；蓝色彩膜403可以使蓝光透过，蓝色彩膜中的第一吸收颜料和第二吸收颜料分别对红光和绿光进行吸收；绿色彩膜402可以使绿光透过，绿色彩膜中的第一吸收颜料和第二吸收颜料分别对红光和蓝光进行吸收。其中，红色彩膜401、绿色彩膜402和蓝色彩膜403中的任一个可以包括层叠设置的第一子彩膜和第二子彩膜，第一和第二吸收颜料可以分别包含在第一和第二子彩膜中。
在此基础上，当量子点背光源发出的光通过蓝色彩膜403时，蓝色彩膜403中的第一吸收颜料和第二吸收颜料分别对红光和绿光进行吸收，如图8中的左侧发光峰所示，从蓝色彩膜403出射的蓝光的发光峰的半峰宽更窄，色纯度更高；当量子点背光源发出的光通过绿色彩膜402时，绿色彩膜402中的第一吸收颜料和第二吸收颜料分别对红光和蓝光进行吸收，如图8中的中间发光峰所示，从绿色彩膜 402出射的绿光的发光峰的半峰宽更窄，色纯度更高；当量子点背光源发出的光通过红色彩膜401时，红色彩膜401中的第一吸收颜料和第二吸收颜料分别对绿光和蓝光进行吸收，如图8中右侧的发光峰所示，从红色彩膜401出射的红光的发光峰的半峰宽更窄。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所附权利要求的保护范围为准。

Claims (16)

  1. 一种彩膜，用于透过三原色中的一种颜色的光，其中所述彩膜包括第一吸收颜料和第二吸收颜料，所述第一吸收颜料的吸收谱范围和所述第二吸收颜料的吸收谱范围分别与三原色中的其它两种颜色的光的光谱波段对应。
  2. 根据权利要求1所述的彩膜，其中所述三原色为红色、绿色、蓝色。
  3. 根据权利要求1所述的彩膜，其中包含所述三原色的光是由白光量子点光源发出的。
  4. 根据权利要求1所述的彩膜，其中所述第一吸收颜料和/或第二吸收颜料为有机颜料。
  5. 根据权利要求1所述的彩膜，其中所述第一吸收颜料的吸收谱范围与红光的光谱波段对应，所述第一吸收颜料的分子结构式为：
    Figure PCTCN2017082148-appb-100001
    其中，R1和R2各自独立地选自-H，-(CH2)n-CH3(n＝0-10)，-CH2(CH2)nOH(n＝0-10)，
    Figure PCTCN2017082148-appb-100002
    中的一种；R3和R4各自独立地选自-H，-(CH2)n-CH3(n＝0-11)，-O-(CH2)n-CH3(n＝0-11)，-O-Si(CH3)2-Si(CH3)3，-O-Si(CH3)3，
    Figure PCTCN2017082148-appb-100003
    中的一种。
  6. 根据权利要求1所述的彩膜，其中所述第一吸收颜料的吸收谱范围与蓝光的光谱波段对应，所述第一吸收颜料的分子结构式为：
    Figure PCTCN2017082148-appb-100004
    其中，R5和R6各自独立地选自-H，-(CH2)n-CH3(n＝0-10)，-CH2(CH2)nOH(n＝0-10)，
    Figure PCTCN2017082148-appb-100005
    中的一种。
  7. 根据权利要求1所述的彩膜，其中所述第一吸收颜料的吸收谱范围与绿光的光谱波段对应，所述第一吸收颜料的分子结构式为：
    Figure PCTCN2017082148-appb-100006
    其中，R7和R8各自独立地选自-H，-(CH2)n-CH3(n＝0-10)，-CH2(CH2)nOH(n＝0-10)，
    Figure PCTCN2017082148-appb-100007
    中的一种。
  8. 根据权利要求1所述的彩膜，其中所述彩膜中第一吸收颜料和第二吸收颜料的质量百分含量之和为5％～40％。
  9. 根据权利要求1所述的彩膜，其中所述彩膜还包括树脂、含不饱和双键的单体、光引发剂、硅偶联剂、助剂和溶剂。
  10. 根据权利要求1所述的彩膜，其中所述彩膜包括层叠设置的第一子彩膜和第二子彩膜；
    所述第一子彩膜包括所述第一吸收颜料，所述第二子彩膜包括所述第二吸收颜料。
  11. 根据权利要求10所述的彩膜，其中
    所述第一子彩膜中第一吸收颜料的质量百分含量为5％～40％，所述第二子彩膜中第二吸收颜料的质量百分含量为5％～40％。
  12. 一种基板，包括权利要求1-11任一项所述的彩膜。
  13. 一种显示装置，包括背光源、阵列基板、对盒基板和位于阵列基板和对盒基板之间的液晶层；
    其中，所述阵列基板或所述对盒基板包括权利要求1-11任一项所述的彩膜。
  14. 根据权利要求13所述的显示装置，其中所述背光源为白光量子点背光源。
  15. 根据权利要求13所述的显示装置，其中所述彩膜包括分别透过三原色中的一种颜色的光的三种彩膜。
  16. 根据权利要求15所述的显示装置，其中所述彩膜包括红色彩膜、绿色彩膜和蓝色彩膜。
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