WO2018228024A1 - 显示基板及其制备方法、显示面板及显示装置 - Google Patents

显示基板及其制备方法、显示面板及显示装置 Download PDF

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Publication number
WO2018228024A1
WO2018228024A1 PCT/CN2018/081262 CN2018081262W WO2018228024A1 WO 2018228024 A1 WO2018228024 A1 WO 2018228024A1 CN 2018081262 W CN2018081262 W CN 2018081262W WO 2018228024 A1 WO2018228024 A1 WO 2018228024A1
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Prior art keywords
color
light
sub
pixel region
display substrate
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Ceased
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PCT/CN2018/081262
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English (en)
French (fr)
Inventor
陈东川
邵喜斌
廖燕平
张振宇
钱学强
王方宇
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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Priority to US16/309,382 priority Critical patent/US10712615B2/en
Publication of WO2018228024A1 publication Critical patent/WO2018228024A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
    • 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
    • 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
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • G02F1/133516—Methods for their manufacture, e.g. printing, electro-deposition or photolithography
    • 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

Definitions

  • the LCD includes an array substrate and a color filter substrate that are paired together, the color film substrate corresponding to the red sub-pixel region includes a red photoresist, the corresponding green sub-pixel region includes a green photoresist, and the corresponding blue sub-pixel region includes a blue photoresist.
  • the red photoresist For the red photoresist, it absorbs the white light emitted by the backlight module to filter out the non-red light, and realizes the red light; similarly, for the green photoresist, it absorbs the white light emitted by the backlight module to filter out the non-green light.
  • the blue light resistance it absorbs the white light emitted by the backlight module to filter out the non-blue light, and realizes the blue light.
  • such a design causes most of the light emitted by the backlight module to be absorbed, resulting in low backlight utilization.
  • one of the first color and the third color is red, the other of the first color and the third color is green, and the second color is blue color.
  • the mass percentage of the scattering material in the filter layer is from 0.2% to 10%.
  • the mass percentage of the scattering material in the filter layer is 0.2% to 2%.
  • a fourth aspect provides a method of fabricating a display substrate, comprising: forming a first photoluminescent layer in a first sub-pixel region of a substrate, wherein the first photoluminescent layer is configured to be excited by light of a second color Light of a first color is emitted; and a filter layer is formed in the second sub-pixel region of the substrate, the filter layer configured to filter out light at least partially in color other than the second color.
  • the first photoluminescent layer, the filter layer, and the second photoluminescent layer are formed using the same mask.
  • FIG. 1 is a schematic structural view of a display substrate provided by the present disclosure
  • FIG. 3 is a schematic structural view of a display substrate provided by the present disclosure.
  • FIG. 8 is a schematic diagram of an optical path of a display device according to the present disclosure.
  • the light of the first color emitted by the light of the second color is uniformly emitted to the periphery, that is, the light of the first color emitted by the first photoluminescent layer 10 is not only
  • the light-emitting side emission of the display substrate 1 is also emitted toward the light-incident side of the display substrate 1, which causes the light of the first color emitted toward the light-in side of the display substrate 1 to be directed toward the backlight module.
  • the backlight module includes other film materials (including the light guide plate, the optical film, etc.), regardless of any material, there is reflection, but the reflection is strong.
  • the light guide plate itself has a surface that is highly reflective (the surface where the non-optical dot is located), and thus, the light of the first color that is incident on the backlight module is reflected again.
  • the backlight module includes When the sheet is reflected, the backlight module is more reflective of the light of the first color that is directed toward it. When the light of the first color reflected by the backlight module is directed toward the second sub-pixel region, most or all of the light of the first color is filtered by the filter layer 20 due to the filtering effect of the filter layer 20.
  • the display substrate 1 may be an array substrate.
  • the display substrate 1 further includes a thin film transistor, a transparent electrode, or the like.
  • the display substrate 1 can also form a display panel on the box substrate and the box substrate and the array substrate.
  • the principle is that some or all of the light of the color other than the second color of the light incident on the filter layer 20 is absorbed and filtered, and for the light incident on the filter layer 20 The second color of light substantially passes through the filter layer 20.
  • the first sub-pixel region and the second sub-pixel region are regions in which different sub-pixels in each pixel are located.
  • the embodiment of the present disclosure provides a display substrate 1 by providing a first photoluminescent layer 10 in a first sub-pixel region, and a filter layer 20 in a second sub-pixel region.
  • the backlight is provided.
  • the module emits light of a second color, and the self-luminous property of the first photoluminescent layer 10 is excited by the light of the second color, and the light absorption of the second color by the filter layer 20 is small, substantially all of the second color is transmitted.
  • the characteristics of the light can significantly improve the utilization and transmittance of the backlight.
  • the display substrate 1 further includes a second photoluminescent layer 30 disposed in the third sub-pixel region, and the second photoluminescent layer 30 emits a third color under the excitation of the light of the second color. Light; wherein the second sub-pixel region is adjacent to the first sub-pixel region and the third sub-pixel region.
  • the light of the third color that is reflected by the backlight module and then reflected toward the first photoluminescent layer 10 also does not cause color crosstalk in the first sub-pixel region due to the blocking effect of the first photoluminescent layer 10;
  • the light of the first color that is reflected by the backlight module and reflected toward the second photoluminescent layer 30 also causes color crosstalk in the third sub-pixel region due to the blocking effect of the second photoluminescent layer 30.
  • the backlight module when the display substrate 1 is applied to a liquid crystal display device, the backlight module emits blue light, and when the blue light passes through the photo-emitting red light layer 11, the excitation light-emitting red light layer 11 emits red light, and the blue light passes through the photo-induced green light.
  • the excitation light-emitting green layer 31 emits green light, and when the blue light passes through the blue filter layer 21, substantially all of the blue light can be transmitted, thereby illuminating the liquid crystal display device under the modulation of the liquid crystal. Side red, green, and blue light are mixed to achieve color display.
  • the first photoluminescent layer 10 includes quantum dots or phosphors
  • the second photoluminescent layer 30 includes quantum dots or phosphors.
  • the material of the first photoluminescent layer 10 may include Y 2 O 3 :Ru .
  • the material of the second photoluminescent layer 30 may include SrGa 2 S 4 .
  • the material of the first photoluminescent layer 10 may include cadmium sulfide (CdS), cadmium selenide. At least one of (CdSe), zinc sulfide (ZnS), and zinc selenide (ZnSe).
  • CdS cadmium sulfide
  • ZnS zinc sulfide
  • ZnSe zinc selenide
  • the material of the second photoluminescent layer 30 may include CdS, CdSe, ZnS, ZnSe. At least one. The color can be adjusted by the diameter of the quantum dot material, and thus, the materials of the first photoluminescent layer 10 and the second photoluminescent layer 30 can be the same.
  • the filter layer 20 includes a host material and a scattering material doped in the host material.
  • the scattering material may be scattering particles 201.
  • the first photoluminescent layer 10 and the second photoluminescent layer 30 are excited by the light of the second color, the light of the first color and the light of the third color respectively emit light uniformly to the periphery, and the light intensity distribution is uniform.
  • the second color of the backlight module emits light with greater directivity (ie, the angle of light of the second color is smaller). Therefore, when the display substrate 1 is applied to a display device, color shift occurs due to a low light intensity of the second color emitted by the second sub-pixel at a large angle (when the light of the second color is blue light, it is large) The blue light intensity is low and yellowish at the angle).
  • the scattering material into the filter layer 20
  • the light of the second color emitted by the backlight module can be scattered in various directions. This improves the uniformity of the light emitted by the second sub-pixel at various angles, thereby improving the problem of color shift at large angles.
  • the scattering material may include at least one of scattering particles 201 such as silicon dioxide (SiO 2 ), titanium oxide (TiO 2 ), calcium carbonate (CaCO 3 ), and the like, and may also include a polymer. In this way, the effect of the scattering material on the light transmittance can be minimized.
  • scattering particles 201 such as silicon dioxide (SiO 2 ), titanium oxide (TiO 2 ), calcium carbonate (CaCO 3 ), and the like, and may also include a polymer. In this way, the effect of the scattering material on the light transmittance can be minimized.
  • the mass percentage of the scattering material in the filter layer 20 is 0.2% to 10%.
  • the influence of the scattering material on the light transmittance can be minimized.
  • the mass percentage of the scattering material in the filter layer 20 is 0.2% to 2%.
  • the host material includes a photoresist composition. That is, a material which can be applied to a color film of a conventional liquid crystal display device is used as a main material of the filter layer 20, and the process is relatively mature and the cost is low.
  • the main components of the photoresist composition include an alkali-soluble resin, a photoactive compound, a photoinitiator, a pigment dispersion, and an organic solvent; the pigment dispersion may include a second color pigment, a dispersant, and an organic solvent, and the dispersant prevents the pigment from being dispersed.
  • the phenomenon of re-aggregation includes an alkali-soluble resin, a photoactive compound, a photoinitiator, a pigment dispersion, and an organic solvent; the pigment dispersion may include a second color pigment, a dispersant, and an organic solvent, and the dispersant prevents the pigment from being dispersed. The phenomenon of re-aggregation.
  • the main body material of the filter layer 20 may include a blue photoresist composition.
  • the main components of the blue photoresist composition include an alkali-soluble resin, a photoactive compound, a photoinitiator, a pigment dispersion, and an organic solvent; and the pigment dispersion may include a blue pigment, a dispersant, and an organic solvent.
  • the blue pigment dispersion it is necessary to dissolve the blue pigment by an organic solvent having a dissolution effect, which may be the same as or different from the organic solvent selected in the blue photoresist composition.
  • the blue pigment uses an organic pigment, for example, CI Pigment Blue 15, CI Pigment Blue 15:1, CI Pigment Blue 15:2, CI Pigment Blue 15:3, CI Pigment Blue 15:4, CI Pigment Blue 15: 6. At least one of CI Pigment Blue 16, CI Pigment Blue 22, and CI Pigment Blue 60.
  • organic pigment for example, CI Pigment Blue 15, CI Pigment Blue 15:1, CI Pigment Blue 15:2, CI Pigment Blue 15:3, CI Pigment Blue 15:4, CI Pigment Blue 15: 6.
  • main material may also be other optical filter materials having similar functions, which are not limited herein.
  • the display substrate 1 further includes a black matrix 40 located in an adjacent sub-pixel region.
  • the black matrix 40, the first photoluminescent layer 10, the second photoluminescent layer 30, and the filter layer 20 are formed on the same display substrate, and can be fabricated on the same production line, which saves time and cost.
  • the embodiment of the present disclosure further provides a display panel including the above display substrate 1. It has the same technical effect as the display substrate 1, and will not be described again here.
  • the backlight module may include a back plate, a light guide plate disposed on the back plate, an optical film disposed on the light exiting side of the light guide plate, and further including a reflective sheet disposed between the light guide plate and the back plate.
  • the light source may be disposed on a side of the light guide plate away from the light exiting side, or may be disposed on a side of the light guide plate.
  • the display device can be any product having a display function such as a display, a mobile phone, a tablet computer, a notebook computer, a television, a digital photo frame, a navigator, and the like.
  • the display panel includes the above-described display substrate 1 and array substrate 5, and a liquid crystal layer 3 is filled between the display substrate 1 and the array substrate 5.
  • the array substrate 5 includes a thin film transistor, a transparent electrode, or the like provided on a substrate.
  • the backlight module 4 is disposed on one side of the array substrate 5.
  • the backlight module 4 can be sufficiently spaced from the first photoluminescent layer 10, the second photoluminescent layer 30, and the filter layer 20, thereby The utilization of the backlight can be made higher.
  • the display substrate 1 includes the first photoluminescent layer 10 disposed in the first sub-pixel region, the second photoluminescent layer 30 disposed in the third sub-pixel region, and the filter layer 20 disposed in the second sub-pixel region
  • the first photoluminescent layer 10 is uniformly excited by the light of the second color to uniformly emit the light of the first color to the periphery, and a part of the light of the first color is emitted to the backlight module 4 .
  • the backlight module 4 is again reflected and then incident into the adjacent second sub-pixel region and the third sub-pixel region, but the second sub-pixel region is filtered due to the blocking effect of the second photoluminescent layer 30 of the third sub-pixel region.
  • the layer 20 absorbs and filters the light of the non-second color, and therefore, the risk of causing color crosstalk in the second sub-pixel region and the third sub-pixel region is small, and the influence on the second sub-pixel and the third sub-pixel is small. .
  • the second photoluminescent layer 30 is uniformly excited by the light of the second color to emit a third color of light to the periphery, and a portion of the third color of light is emitted to the backlight module 4, and is reflected again by the backlight module 4.
  • the adjacent first sub-pixel region and the second sub-pixel region are incident, but the filter layer 20 of the second sub-pixel region is non-second due to the blocking effect of the first photoluminescent layer 10 of the first sub-pixel region.
  • the absorption of the light of the color is filtered, and therefore, the risk of causing color crosstalk in the first sub-pixel region and the second sub-pixel region is small, and the influence on the first sub-pixel and the second sub-pixel is small.
  • the filter layer 20 includes a host material and a scattering material doped in the host material
  • the scattering material can scatter the light of the second color emitted by the backlight module 4 in various directions, thereby improving the second sub-item.
  • the pixels emit uniformity of light at various angles.
  • An embodiment of the present disclosure provides a display device by providing a first photoluminescent layer 10 in a first sub-pixel region of the display substrate 1 and a second photoluminescent layer 30 in a third sub-pixel region in a second sub-pixel.
  • the filter layer 20 is arranged to excite the self-luminous characteristics of the first photoluminescent layer 10 and the second photoluminescent layer 30 by using light of the second color when the backlight module 4 emits light of the second color, and filtering
  • the light layer 20 substantially transmits the characteristics of the light of the third color, which can significantly improve the utilization and transmittance of the backlight. On this basis, the problem of color crosstalk in each sub-pixel region can also be avoided.
  • the backlight module 4 is a blue backlight module, that is, the light source in the backlight module 4 is used to emit blue light.
  • a light emitting diode has the advantages of high brightness, low heat, low energy consumption, long life, and the like.
  • the backlight module 4 uses a blue light emitting LED as a light source.
  • the embodiment of the present disclosure further provides a method for preparing the display substrate 1.
  • the method includes: forming a first photoluminescent layer 10 in a first sub-pixel region of the substrate, the first photoluminescent layer 10 being in the first The light of the first color is emitted by the excitation of the light of the two colors; the filter layer 20 is formed in the second sub-pixel region of the substrate, and the filter layer 20 is for filtering out the light of at least part of the color other than the second color.
  • the embodiment of the present disclosure provides a method for preparing the display substrate 1 , which has the same technical effects as the display substrate 1 and will not be described herein.
  • a method for preparing the display substrate 1, as shown in FIG. 9, specifically includes:
  • a first photosensitive resin film mixed with phosphor particles or quantum dots may be coated (eg, spin-coated) on the substrate, and the phosphor particles or quantum dots are excited by the light of the second color to emit a color of light, exposing the first photosensitive resin film through the first mask to form an exposed area and an unexposed area, in the exposed area, the first photosensitive resin film is cured on the substrate, and the unexposed area is formed by the developer The first photosensitive resin film is etched away to form the first photoluminescent layer 10 in the first sub-pixel region.
  • a filter layer 20 is formed on the second sub-pixel region of the substrate, and the filter layer 20 is configured to filter out at least part of the light of a color other than the second color.
  • a second color filter film may be coated (eg, spin-coated) on the substrate, and the second color filter film is exposed through the second mask to form an exposed region and an unexposed region in the exposed region.
  • the second color filter film is cured on the substrate, and the second color filter film of the unexposed area is etched away by the developer to form the filter layer 20 in the second sub-pixel region.
  • the second sub-pixel region is adjacent to the first sub-pixel region and the third sub-pixel region.
  • a third photosensitive resin film mixed with phosphor particles or quantum dots may be coated (eg, spin-coated) on the substrate, and the phosphor particles or quantum dots are excited by the light of the second color.
  • the three-color light exposes the third photosensitive resin film through the third mask to form an exposed area and an unexposed area.
  • the third photosensitive resin film is cured on the substrate, and the unexposed area is formed by the developer
  • the third photosensitive resin film is etched away to form the second photoluminescent layer 30 in the third sub-pixel region.
  • the first photoluminescent layer 10, the second photoluminescent layer 30, and the filter layer 20 are formed using the same mask. This simplifies the process and saves costs.
  • a black matrix film can be formed on a substrate, and the black matrix film can be exposed using a black matrix mask to form a black matrix 40 on the substrate.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种显示基板及其制备方法、显示面板及显示装置。该显示基板包括第一光致发光层（10），其设置于第一子像素区域并且配置成在第二颜色的光的激发下发出第一颜色的光；以及滤光层（20），其设置于第二子像素区域并且配置成过滤掉至少部分除第二颜色以外颜色的光。

Description

显示基板及其制备方法、显示面板及显示装置
相关专利申请
本申请主张于2017年6月12日提交的中国专利申请No.201710441031.4的优先权，其全部内容通过引用结合于此。
技术领域
本公开涉及显示技术领域，尤其涉及显示基板及其制备方法、显示面板及显示装置。
背景技术
液晶显示器(Liquid Crystal Display，简称LCD)具有体积小、功耗低、无辐射等特点，在当前的显示器市场中占据主导地位。
LCD包括对盒在一起的阵列基板和彩膜基板，彩膜基板对应红色子像素区域包括红色光阻，对应绿色子像素区域包括绿色光阻，对应蓝色子像素区域包括蓝色光阻。
对于红色光阻，其是将背光模组发出的白光吸收过滤掉非红光，而实现发出红光；同理，对于绿色光阻，其是将背光模组发出的白光吸收过滤掉非绿光，而实现发出绿光；对于蓝色光阻，其是将背光模组发出的白光吸收过滤掉非蓝光，而实现发出蓝光。然而，这样的设计，导致背光模组发出的光大部分被吸收掉，使得背光利用率很低。
发明内容
第一方面，提供一种显示基板，包括：第一光致发光层，其设置于第一子像素区域并且配置成在第二颜色的光的激发下发出第一颜色的光；以及滤光层，其设置于第二子像素区域并且配置成过滤掉至少部分除所述第二颜色以外颜色的光。
在示例性实施例中，所述第一子像素区域和所述第二子像素区域相邻。
在示例性实施例中，所述显示基板还包括第二光致发光层，其设置于第三子像素区域并且在所述第二颜色的光的激发下发出第三颜色的光。
在示例性实施例中，所述第二子像素区域和所述第一子像素区域相邻并且和所述第三子像素区域相邻。
在示例性实施例中，所述第一颜色和所述第三颜色其中之一为红色，所述第一颜色和所述第三颜色中的另一个为绿色，并且所述第二颜色为蓝色。
在示例性实施例中，所述第一光致发光层和所述第二光致发光层包括量子点或荧光粉。
在示例性实施例中，所述滤光层包括主体材料和掺杂于所述主体材料中的散射材料。
在示例性实施例中，所述散射材料包括SiO 2、TiO 2、CaCO 3、聚合物中的至少一种。
在示例性实施例中，所述散射材料在所述滤光层中的质量百分比为0.2％～10％。
在示例性实施例中，所述散射材料在所述滤光层中的质量百分比为0.2％～2％。
在示例性实施例中，所述主体材料包括光阻组合物。
在示例性实施例中，所述光阻组合物包括分散剂，并且所述分散剂包括聚氨酯、聚丙烯酸酯、不饱和聚酰胺、聚羧酸铵盐、聚硅氧烷和月桂基硫酸钠中的至少一种。
第二方面，提供一种显示面板，包括根据第一方面所述的显示基板。
第三方面，提供一种显示装置，包括根据第二方面所述的显示面板，并且包括配置成发出第二颜色的光的背光模组。
第四方面，提供一种显示基板的制备方法，包括：在衬底的第一子像素区域形成第一光致发光层，所述第一光致发光层配置成第二颜色的光的激发下发出第一颜色的光；以及在衬底的第二子像素区域形成滤光层，所述滤光层配置成过滤掉至少部分除第二颜色以外颜色的光。
在示例性实施例中，所述制备方法还包括在衬底的第三子像素区域形成第二光致发光层，所述第二光致发光层配置成在所述第二颜色的光的激发下发出第三颜色的光。
在示例性实施例中，所述第二子像素区域和所述第一子像素区域 相邻并且和所述第三子像素区域相邻。
在示例性实施例中，采用同一掩模板形成所述第一光致发光层、所述滤光层以及所述第二光致发光层。
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为本公开提供的一种显示基板的结构示意图；
图2为本公开提供的一种显示基板的结构示意图；
图3为本公开提供的一种显示基板的结构示意图；
图4为本公开提供的一种显示基板的结构示意图；
图5为本公开提供的一种显示基板的结构示意图；
图6为本公开提供的一种显示装置的结构示意图；
图7为本公开提供的一种显示装置的结构示意图；
图8为本公开提供的一种显示装置的光路示意图；以及
图9为本公开提供的一种制备显示基板的流程示意图。
具体实施方式
下面将结合本公开实施例中的附图，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。
附图标记：1-显示基板；2-对盒基板；3-液晶层；4-背光模组；5-阵列基板；10-第一光致发光层；11-光致发红光层；20-滤光层；21-蓝色滤光层；201-散射颗粒；30-第二光致发光层；31-光致发绿光层；40-黑矩阵。
本公开的实施例提供一种显示基板及其制备方法、显示面板及显示装置，可提高背光利用率并减低串扰。
本公开实施例提供一种显示基板1，如图1所示，包括：设置于第一子像素区域的第一光致发光层10，第一光致发光层10在第二颜色的光的激发下发出第一颜色的光；设置于第二子像素区域的滤光层20，滤光层20用于过滤掉至少部分除第二颜色以外颜色的光。
当该显示基板1应用于显示装置时，背光模组发出第二颜色的光，第二颜色的光经过第一光致发光层10时，激发第一光致发光层10发第一颜色的光，第二颜色的光经过滤光层20时，滤光层20过滤掉至少部分除第二颜色以外颜色的光，基本上全部的第二颜色的光可以透过。
对于第一光致发光层10而言，其受第二颜色的光激发后发出的第一颜色的光向四周均匀发射，即，第一光致发光层10发出的第一颜色的光不仅向显示基板1的出光侧发射，也会向显示基板1的入光侧发射，这样会导致向显示基板1入光侧发射的第一颜色的光射向背光模组。而基于背光模组的结构，即使在其不包括反射片时，由于背光模组中还包括其他膜材(包括导光板、光学膜片等)，而不管任何材料都存在反射，只是反射的强弱不同，而且导光板自身具有经过高反射处理的一个面(非光学网点所在的面)，因而，也会使射向背光模组的第一颜色的光再次反射，当然，在背光模组包括反射片时，背光模组对射向其的第一颜色的光的反射则会更强。当经背光模组再次反射的第一颜色的光射向第二子像素区域时，由于滤光层20的过滤作用，大部分或全部的第一颜色的光会被滤光层20过滤掉。
需要说明的是，第一，显示基板1可以是阵列基板，在此情况下，该显示基板1还包括薄膜晶体管、透明电极等。当然，显示基板1还可以对盒基板，对盒基板与阵列基板对盒形成显示面板。
第二，对于滤光层20，其原理为：将射入滤光层20的光中除第二颜色以外颜色的光的部分或全部吸收过滤掉，而对于射入滤光层20的光中的第二颜色的光，基本上大部分透过滤光层20。
第三，第一子像素区域和第二子像素区域为每个像素中不同的子像素所在的区域。
本公开实施例提供一种显示基板1，通过在第一子像素区域设置第一光致发光层10，在第二子像素区域设置滤光层20，当该显示基板应用于显示装置时，背光模组发出第二颜色的光，利用第二颜色的光激 发第一光致发光层10的自发光特性，以及滤光层20对第二颜色的光吸收很小，基本全部透过第二颜色的光的特性，可显著提高背光的利用率和透过率。在此基础上，基于滤光层20对非第二颜色的光的吸收过滤作用，即使第一光致发光层10受第二颜色的光激发后向四周均匀发第一颜色的光，会有部分第一颜色的光射向背光模组，经背光模组再次反射后射入第二子像素区域，也不会在第二子像素区域引起颜色串扰。
考虑到如果第一子像素区域和第二子像素区域间隔较远，位于第二子像素区域的滤光层20，不能很好的吸收过滤第一光致发光层10发出并经背光模组反射后的第一颜色的光，因此，第一子像素区域和第二子像素区域相邻。
例如，如图2所示，显示基板1还包括设置于第三子像素区域的第二光致发光层30，第二光致发光层30在第二颜色的光的激发下发出第三颜色的光；其中第二子像素区域与第一子像素区域和第三子像素区域相邻。
当该显示基板1应用于显示装置时，背光模组发出第二颜色的光，第二颜色的光经过第一光致发光层10时，激发第一光致发光层10发第一颜色的光，第二颜色的光经过第二光致发光层30时，激发第二光致发光层30发第三颜色的光，第二颜色的光经过滤光层20时，滤光层20过滤掉至少部分除第二颜色以外颜色的光，基本上全部的第二颜色的光可以透过。因而，对于第一子像素区域、第二子像素区域和第三子像素区域，都可显著提高背光的利用率和透过率。
在此基础上，即使第一光致发光层10和第二光致发光层30受第二颜色的光激发后，分别向四周均匀发射第一颜色的光和第三颜色的光，并有部分第一颜色的光和第三颜色的光射向背光模组，并经背光模组再次反射后射入临近的第二子像素区域，也由于滤光层20的过滤作用，大部分或全部的第一颜色的光和第三颜色的光会被滤光层20过滤掉，从而在第二子像素区域不会引起颜色串扰。此外，经背光模组再次反射后射向第一光致发光层10的第三颜色的光，也由于第一光致发光层10的阻挡作用，不会在第一子像素区域引起颜色串扰；同理，经背光模组再次反射后射向第二光致发光层30的第一颜色的光，也由于第二光致发光层30的阻挡作用，不会在第三子像素区域引起颜色串 扰。
进一步的，第一颜色和第三颜色分别为红色和绿色，第二颜色为蓝色，基于此，如图3所示，显示基板1包括：设置于第一子像素区域的光致发红光层11，光致发红光层11在蓝光的激发下发出红光；设置于第三子像素区域的光致发绿光层31，光致发绿光层31在蓝光的激发下发出绿光；设置于第二子像素区域的蓝色滤光层21，蓝色滤光层21用于过滤掉至少部分除蓝光以外颜色的光。
基于此，当该显示基板1应用于液晶显示装置时，背光模组发出蓝光，蓝光经过光致发红光层11时，激发光致发红光层11发红光，蓝光经过光致发绿光层31时，激发光致发绿光层31发绿光，蓝光经过蓝色滤光层21时，基本上全部的蓝光可以透过，从而，在液晶的调制下，在液晶显示装置的出光侧红、绿、蓝光进行混光，实现彩色显示。
基于上述，例如，第一光致发光层10包括量子点或荧光粉，并且第二光致发光层30包括量子点或荧光粉。
具体的，当第一光致发光层10包括荧光粉，且第一光致发光层10在蓝光的激发下发红光时，第一光致发光层10的材料可以包括Y 2O 3：Ru。当第二光致发光层30包括荧光粉，且第二光致发光层30在蓝光的激发下发绿光时，第二光致发光层30的材料可以包括SrGa 2S 4。
当第一光致发光层10包括量子点，且第一光致发光层10在蓝光的激发下发红光时，第一光致发光层10的材料可以包括硫化镉(CdS)、硒化镉(CdSe)、硫化锌(ZnS)、硒化锌(ZnSe)中的至少一种。当第二光致发光层30包括量子点，且第二光致发光层30在蓝光的激发下发绿光时，第二光致发光层30的材料可以包括CdS、CdSe、ZnS、ZnSe中的至少一种。可通过量子点材料的直径来调节颜色，因而，第一光致发光层10和第二光致发光层30的材料可以相同。
例如，滤光层20包括主体材料和掺杂于主体材料中的散射材料。
如图4所示，散射材料可以是散射颗粒201。
由于第一光致发光层10和第二光致发光层30受第二颜色的光激发后，分别发出的第一颜色的光和第三颜色的光向四周均匀发光，光强分布很均匀。相对而言，背光模组发光的第二颜色的光指向性更强(即第二颜色的光的角度范围较小)。因此，当该显示基板1应用于 显示装置时，在大角度下，会因为第二子像素发出的第二颜色的光强度低而发生色偏(当第二颜色的光为蓝光时，在大角度下蓝光强度低而偏黄)。基于此，通过在滤光层20中掺入散射材料，可使背光模组发出的第二颜色的光向各个方向散射。这提高第二子像素发出光在各个角度下的均匀性，从而改善大角度下色偏的问题。
例如，散射材料可包括二氧化硅(SiO 2)、二氧化钛(TiO 2)、碳酸钙(CaCO 3)等散射颗粒201中的至少一种，也可包括聚合物。这样，可尽量减小散射材料对光透过率的影响。
例如，散射材料在滤光层20中的质量百分比为0.2％～10％。在散射材料起到散射光作用的基础上，可尽量减小散射材料对光透过率的影响。
例如，散射材料在滤光层20中的质量百分比为0.2％～2％。
例如，主体材料包括光阻组合物。即采用可应用于常规液晶显示装置彩膜的材料作为滤光层20的主体材料，工艺较为成熟，成本较低。
光阻组合物的主要成分包括碱可溶性树脂、光活性化合物、光引发剂、颜料分散液、有机溶剂；颜料分散液可包括第二颜色颜料、分散剂和有机溶剂，分散剂可防止颜料分散后重新聚集的现象。
具体的，在第一颜色和第三颜色分别为红色和绿色，第二颜色为蓝色的情况下，滤光层20的主体材料可包括蓝色光阻组合物。蓝色光阻组合物的主要成分包括碱可溶性树脂、光活性化合物、光引发剂、颜料分散液、有机溶剂；颜料分散液可包括蓝色颜料、分散剂和有机溶剂。
在制备颜料分散液时，需通过具有溶解作用的有机溶剂溶解蓝色颜料，该有机溶剂可以与蓝色光阻组合物中选用的有机溶剂相同，也可不同。
例如，蓝色颜料使用有机颜料，例如可以选取C.I.颜料蓝15、C.I.颜料蓝15：1、C.I.颜料蓝15：2、C.I.颜料蓝15：3、C.I.颜料蓝15：4、C.I.颜料蓝15：6、C.I.颜料蓝16、C.I.颜料蓝22、C.I.颜料蓝60中的至少一种。
分散剂可以选取聚氨酯、聚丙烯酸酯、不饱和聚酰胺、聚羧酸铵盐、聚硅氧烷和月桂基硫酸钠中的至少一种。
需要说明的是，主体材料还可以是其他具有类似功能的光波过滤 材料，具体在此不做限定。
基于上述，如图5所示，例如，显示基板1还包括位于相邻子像素区域的黑矩阵40。将黑矩阵40和第一光致发光层10、第二光致发光层30、滤光层20制作在同一显示基板上，可在相同的产线进行制作，可节省时间及成本。
本公开实施例还提供一种显示面板，包括上述的显示基板1。其具有与显示基板1相同的技术效果，在此不再赘述。
本公开实施例还提供一种显示装置，包括上述的显示面板、背光模组；背光模组用于发出第二颜色的光。
背光模组可包括背板，设置于背板上的导光板、设置于导光板出光侧的光学膜片，进一步的还可包括设置于导光板与背板之间的反射片。光源可设置于导光板远离出光侧的一侧，也可设置于导光板的侧面。
所述显示装置可以为显示器、手机、平板电脑、笔记本电脑、电视机、数码相框、导航仪等任何具有显示功能的产品。
具体的，如图6所示，显示面板包括上述的显示基板1和对盒基板2，显示基板1和对盒基板2之间填充有液晶层3。显示基板1还包括设置于每个子像素区域的薄膜晶体管、透明电极等。背光模组4设置于显示基板1一侧。
如图7所示，显示面板包括上述的显示基板1和阵列基板5，显示基板1和阵列基板5之间填充有液晶层3。阵列基板5包括设置于衬底上的薄膜晶体管、透明电极等。背光模组4设置于阵列基板5一侧。
在显示面板包括显示基板1和阵列基板5的情况下，可使背光模组4与第一光致发光层10、第二光致发光层30和滤光层20之间具有足够的距离，从而可使背光的利用率更高。
当显示基板1包括设置于第一子像素区域的第一光致发光层10、设置于第三子像素区域的第二光致发光层30、设置于第二子像素区域的滤光层20的情况下，如图8所示，第一光致发光层10受第二颜色的光激发后向四周均匀发第一颜色的光，会有部分第一颜色的光射向背光模组4，经背光模组4再次反射后射入临近的第二子像素区域和第三子像素区域，但由于第三子像素区域的第二光致发光层30的阻挡作用，第二子像素区域的滤光层20对非第二颜色的光的吸收过滤作用， 因此，在第二子像素区域和第三子像素区域引起颜色串扰的风险较小，对第二子像素和第三子像素的影响较小。
同理，第二光致发光层30受第二颜色的光激发后向四周均匀发第三颜色的光，会有部分第三颜色的光射向背光模组4，经背光模组4再次反射后射入临近的第一子像素区域和第二子像素区域，但由于第一子像素区域的第一光致发光层10的阻挡作用，第二子像素区域的滤光层20对非第二颜色的光的吸收过滤作用，因此，在第一子像素区域和第二子像素区域引起颜色串扰的风险较小，对第一子像素和第二子像素的影响较小。
在此基础上，当滤光层20包括主体材料和掺杂于主体材料中的散射材料，散射材料可使背光模组4发出的第二颜色的光向各个方向散射，因而可提高第二子像素发出光在各个角度下的均匀性。
本公开实施例提供一种显示装置，通过在显示基板1的第一子像素区域设置第一光致发光层10，在第三子像素区域设置第二光致发光层30，在第二子像素区域设置滤光层20，可在背光模组4发出第二颜色的光时，利用第二颜色的光激发第一光致发光层10和第二光致发光层30的自发光特性，以及滤光层20基本全部透过第三颜色的光的特性，可显著提高背光的利用率和透过率。在此基础上，还可避免在各子像素区域产生颜色串扰的问题。
在第一颜色和第三颜色分别为红色和绿色，第二颜色为蓝色的情况下，背光模组4为蓝光背光模组，即背光模组4中的光源用于发出蓝光。
基于此，考虑到发光二极管(Light Emitting Diode，简称LED)具有亮度高、热量低、能耗小、寿命长等优点，因此，例如背光模组4采用发出蓝光的LED作为光源。
本公开实施例还提供一种显示基板1的制备方法，参考图1所示，包括：在衬底的第一子像素区域形成第一光致发光层10，第一光致发光层10在第二颜色的光的激发下发出第一颜色的光；在衬底的第二子像素区域形成滤光层20，滤光层20用于过滤掉至少部分除第二颜色以外颜色的光。
本公开实施例提供一种显示基板1的制备方法，具有与显示基板1相同的技术效果，在此不再赘述。
例如，一种显示基板1的制备方法，如图9所示，具体包括：
S10、如图2和图4所示，在衬底的第一子像素区域形成第一光致发光层10，第一光致发光层10在第二颜色的光的激发下发出第一颜色的光。
示例的，可在衬底上涂覆(如旋涂)一层混有荧光粉颗粒或量子点的第一感光树脂薄膜，该荧光粉颗粒或量子点受第二颜色的光的激发而发出第一颜色的光，通过第一掩模板对第一感光树脂薄膜进行曝光，形成曝光区和未曝光区，在曝光区，第一感光树脂薄膜被固化在衬底上，利用显影液将未曝光区的第一感光树脂薄膜刻蚀掉，从而在第一子像素区域形成第一光致发光层10。
S11、如图2和图4所示，在衬底的第二子像素区域形成滤光层20，滤光层20用于过滤掉至少部分除第二颜色以外颜色的光。
示例的，可在衬底上涂覆(如旋涂)一层第二颜色滤光薄膜，通过第二掩模板对第二颜色滤光薄膜进行曝光，形成曝光区和未曝光区，在曝光区，第二颜色滤光薄膜被固化在衬底上，利用显影液将未曝光区的第二颜色滤光薄膜刻蚀掉，从而在第二子像素区域形成滤光层20。
S12、如图2和图4所示，在衬底的第三子像素区域形成第二光致发光层30，第二光致发光层30配置成在第二颜色的光的激发下发出第三颜色的光。
第二子像素区域与第一子像素区域和第三子像素区域相邻。
示例的，可在衬底上涂覆(如旋涂)一层混有荧光粉颗粒或量子点的第三感光树脂薄膜，该荧光粉颗粒或量子点受第二颜色的光的激发而发出第三颜色的光，通过第三掩模板对第三感光树脂薄膜进行曝光，形成曝光区和未曝光区，在曝光区，第三感光树脂薄膜被固化在衬底上，利用显影液将未曝光区的第三感光树脂薄膜刻蚀掉，从而在第三子像素区域形成第二光致发光层30。
需要说明的是，不对S10、S11和S12的先后顺序进行限定。
例如，采用同一掩模板形成第一光致发光层10、第二光致发光层30以及滤光层20。这样，可简化工艺，节省成本。
即，第一掩模板、第二掩模板和第三掩模板为同一掩模板。
例如，如图5所示，所述制备方法还包括形成黑矩阵40。
示例的，可在衬底上形成黑矩阵薄膜，利用黑矩阵掩模板对黑矩 阵薄膜进行曝光，从而在衬底上形成黑矩阵40。
黑矩阵40可形成在第一光致发光层10、第二光致发光层30和滤光层20之前，也可形成在第一光致发光层10、第二光致发光层30和滤光层20之后。
本公开实施例提供一种显示基板及其制备方法、显示面板及显示装置。通过在显示基板的第一子像素区域设置第一光致发光层，在第二子像素区域设置滤光层，当背光模组发出第二颜色的光时，利用第二颜色的光激发第一光致发光层的自发光特性，以及滤光层对第二颜色的光吸收很小，基本全部透过第二颜色的光的特性，可显著提高背光的利用率和透过率。在此基础上，基于滤光层对非第二颜色的光的吸收过滤作用，即使第一光致发光层受第二颜色的光激发后向四周均匀发第一颜色的光，会有部分第一颜色的光线射向背光模组，经背光模组再次反射后射入第二子像素区域，这种反射的第一颜色的光也不会在第二子像素区域引起颜色串扰。
以上所述，仅为本公开的具体实施方式，但本公开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公开揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (18)

  1. 一种显示基板，包括：
    第一光致发光层，其设置于第一子像素区域并且配置成在第二颜色的光的激发下发出第一颜色的光；以及
    滤光层，其设置于第二子像素区域并且配置成过滤掉至少部分除所述第二颜色以外颜色的光。
  2. 根据权利要求1所述的显示基板，其中所述第一子像素区域和所述第二子像素区域相邻。
  3. 根据权利要求1所述的显示基板，还包括第二光致发光层，其设置于第三子像素区域并且配置成在所述第二颜色的光的激发下发出第三颜色的光。
  4. 根据权利要求1所述的显示基板，其中所述第二子像素区域和所述第一子像素区域相邻并且和所述第三子像素区域相邻。
  5. 根据权利要求4所述的显示基板，其中所述第一颜色和所述第三颜色其中之一为红色，所述第一颜色和所述第三颜色中的另一个为绿色，并且所述第二颜色为蓝色。
  6. 根据权利要求3所述的显示基板，其中所述第一光致发光层和所述第二光致发光层包括量子点或荧光粉。
  7. 根据权利要求1所述的显示基板，其中所述滤光层包括主体材料和掺杂于所述主体材料中的散射材料。
  8. 根据权利要求7所述的显示基板，其中所述散射材料包括SiO 2、TiO 2、CaCO 3、聚合物中的至少一种。
  9. 根据权利要求7所述的显示基板，其中所述散射材料在所述滤光层中的质量百分比为0.2％～10％。
  10. 根据权利要求9所述的显示基板，其中所述散射材料在所述滤光层中的质量百分比为0.2％～2％。
  11. 根据权利要求7所述的显示基板，其中所述主体材料包括光阻组合物。
  12. 根据权利要求11所述的显示基板，其中所述光阻组合物包括分散剂，并且所述分散剂包括聚氨酯、聚丙烯酸酯、不饱和聚酰胺、聚羧酸铵盐、聚硅氧烷和月桂基硫酸钠中的至少一种。
  13. 一种显示面板，包括根据权利要求1-12中任一项所述的显示基板。
  14. 一种显示装置，包括根据权利要求13所述的显示面板，并且包括配置成发出第二颜色的光的背光模组。
  15. 一种显示基板的制备方法，包括：
    在衬底的第一子像素区域形成第一光致发光层，所述第一光致发光层配置成在第二颜色的光的激发下发出第一颜色的光；以及
    在衬底的第二子像素区域形成滤光层，所述滤光层配置成过滤掉至少部分除所述第二颜色以外颜色的光。
  16. 根据权利要求15所述的制备方法，还包括在所述衬底的第三子像素区域形成第二光致发光层，所述第二光致发光层配置成在所述第二颜色的光的激发下发出第三颜色的光。
  17. 根据权利要求16所述的制备方法，其中所述第二子像素区域与所述第一子像素区域相邻并且和所述第三子像素区域相邻。
  18. 根据权利要求16所述的制备方法，其中采用同一掩模板形成所述第一光致发光层、所述滤光层以及所述第二光致发光层。
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106990614B (zh) 2017-06-12 2019-06-21 京东方科技集团股份有限公司 一种基板及其制备方法、显示面板及显示装置
CN107357084A (zh) * 2017-08-09 2017-11-17 青岛海信电器股份有限公司 一种液晶显示装置
CN107817630A (zh) * 2017-12-07 2018-03-20 青岛海信电器股份有限公司 一种液晶显示装置
US10527885B2 (en) * 2018-04-03 2020-01-07 Facebook Technologies, Llc Display device with optical reflecting layer for reduction of screen door effect
CN109243304B (zh) * 2018-08-07 2021-06-29 苏州星烁纳米科技有限公司 显示面板及其制备方法
CN109188751B (zh) * 2018-09-29 2021-11-05 武汉天马微电子有限公司 显示面板、显示装置以及显示面板的制作方法
CN109859629A (zh) * 2018-12-28 2019-06-07 清华大学深圳研究生院 一种柔性led显示薄膜
CN110488527A (zh) * 2019-08-29 2019-11-22 京东方科技集团股份有限公司 一种彩膜基板、显示装置及彩膜基板的制备方法
US12164207B2 (en) * 2021-01-22 2024-12-10 Sharp Kabushiki Kaisha Display device
CN114497324B (zh) * 2021-12-30 2023-01-24 北海惠科光电技术有限公司 阵列基板及其制备方法、显示面板

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040119909A1 (en) * 2002-12-18 2004-06-24 Che-Chih Chang Backlight module
CN101105617A (zh) * 2003-11-03 2008-01-16 友达光电股份有限公司 多域垂直配向式液晶显示器及其彩色滤光基板的制造方法
CN203465442U (zh) * 2013-07-23 2014-03-05 京东方科技集团股份有限公司 彩色滤光片及液晶面板、显示装置
CN104793392A (zh) * 2015-04-24 2015-07-22 武汉华星光电技术有限公司 液晶显示面板和液晶显示器
CN106990614A (zh) * 2017-06-12 2017-07-28 京东方科技集团股份有限公司 一种基板及其制备方法、显示面板及显示装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030089252A1 (en) * 2001-11-09 2003-05-15 Sarnecki Greg J. Production of Electroluminescent Devices
CN101866642B (zh) 2010-06-11 2012-04-18 华映视讯（吴江）有限公司 红绿蓝白光显示系统及其显示影像的方法
CN104299568B (zh) 2014-10-23 2016-08-17 京东方科技集团股份有限公司 一种woled显示装置的图像显示控制方法及装置、显示装置
US20170373859A1 (en) * 2016-06-23 2017-12-28 Praxik, Llc Cryptographic Signature System and Related Systems and Methods

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040119909A1 (en) * 2002-12-18 2004-06-24 Che-Chih Chang Backlight module
CN101105617A (zh) * 2003-11-03 2008-01-16 友达光电股份有限公司 多域垂直配向式液晶显示器及其彩色滤光基板的制造方法
CN203465442U (zh) * 2013-07-23 2014-03-05 京东方科技集团股份有限公司 彩色滤光片及液晶面板、显示装置
CN104793392A (zh) * 2015-04-24 2015-07-22 武汉华星光电技术有限公司 液晶显示面板和液晶显示器
CN106990614A (zh) * 2017-06-12 2017-07-28 京东方科技集团股份有限公司 一种基板及其制备方法、显示面板及显示装置

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