WO2017024613A1 - 显示面板及其制作方法 - Google Patents

显示面板及其制作方法 Download PDF

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Publication number
WO2017024613A1
WO2017024613A1 PCT/CN2015/087906 CN2015087906W WO2017024613A1 WO 2017024613 A1 WO2017024613 A1 WO 2017024613A1 CN 2015087906 W CN2015087906 W CN 2015087906W WO 2017024613 A1 WO2017024613 A1 WO 2017024613A1
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pixel
sub
groove
pixel groove
blue
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PCT/CN2015/087906
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English (en)
French (fr)
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马超
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深圳市华星光电技术有限公司
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Priority to US14/781,587 priority Critical patent/US9977284B2/en
Publication of WO2017024613A1 publication Critical patent/WO2017024613A1/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
    • G02F1/133621—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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • 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
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    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
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    • 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
    • G02F1/133377—Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel
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    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • G—PHYSICS
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    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134336—Matrix
    • 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
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13762—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering containing luminescent or electroluminescent additives
    • 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
    • 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
    • G02F1/1343—Electrodes
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    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • 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
    • G02F2202/28—Adhesive materials or arrangements
    • G—PHYSICS
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    • 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 invention relates to the field of display technologies, and in particular, to a display panel and a method of fabricating the same.
  • Liquid crystal display has many advantages such as thin body, power saving, and no radiation, and has been widely used. Most of the liquid crystal display devices on the market are backlight type liquid crystal display devices, which include a liquid crystal display panel and a backlight module.
  • a liquid crystal display panel consists of a color filter substrate (CF), a thin film transistor substrate (TFT, Thin Film Transistor), a liquid crystal (LC) sandwiched between a color filter substrate and a thin film transistor substrate, and a sealant frame ( Sealant);
  • the working principle of the liquid crystal display panel is to place liquid crystal molecules in two parallel glass substrates, control the orientation of the liquid crystal molecules by energizing the glass substrate, change the polarization state of the light of the backlight module, and use a polarizing plate. Realize the penetration and blocking of the optical path to achieve the purpose of display.
  • PDLC polymer dispersed liquid crystal
  • It is a mixture of low molecular liquid crystal and prepolymer, and polymerized under certain conditions to form a micron-scale.
  • the liquid crystal droplets are uniformly dispersed in the polymer network, and then the dielectric anisotropy of the liquid crystal molecules is used to obtain a material having electro-optic response characteristics, which mainly works between the scattering state and the transparent state and has a certain gray scale.
  • the working principle is that: in the absence of applied voltage, a regular electric field cannot be formed between the PDLC films, and the optical axis of the liquid crystal particles is randomly oriented, showing a disordered state, and the refractive index does not match the refractive index of the polymer, and the incident light is incident. Strongly scattered, the PDLC film is opaque or translucent; after the external voltage is applied, the optical axis of the liquid crystal particles is aligned perpendicular to the surface of the film, that is, consistent with the direction of the electric field, and the refractive index of the liquid crystal particles substantially matches the refractive index of the polymer.
  • the PDLC film has optical switching characteristics, and the degree of transparency increases along a certain curve as the applied voltage increases.
  • Quantum dots are quasi-zero-dimensional nanomaterials composed of a small number of atoms. Roughly speaking, the dimensions of the three dimensions of quantum dots are all below 100 nanometers (nm), and the appearance is just like a tiny dot. The movement of internal electrons in all directions is limited, so the quantum confinement effect (quantum) The confinement effect) is particularly remarkable. Its It has an excellent excitation spectrum and a continuous distribution, and the emission spectrum is narrow and symmetrical, the color is adjustable, the photochemical stability is high, and the fluorescence lifetime is long, which is an ideal luminescent material.
  • quantum dots have two main types depending on the way energy is obtained, one is photoluminescence, and the other is electroluminescence.
  • the luminescent color of quantum dots conforms to the size effect of quantum dots. That is, by controlling the shape, structure and size of quantum dots, the electronic states such as the energy gap width, the size of the exciton binding energy, and the energy blue shift of the excitons can be adjusted. As the size of quantum dots decreases, the optical absorption spectrum of quantum dots appears blue-shifted. The smaller the size, the more pronounced the blue shift phenomenon.
  • Another object of the present invention is to provide a method for fabricating a display panel by combining a polymer dispersed liquid crystal with quantum dots, and modifying the structure of the conventional upper and lower substrates to obtain a novel display panel and a conventional display.
  • the production or addition of components such as a color photoresist layer, an alignment film, and a polarizer is omitted, the process is simple, the manufacturing cost is low, and the display effect of the obtained display panel is novel and special, and has red and green colors.
  • the present invention firstly provides a display panel including an upper substrate, a lower substrate, and a frame adhesive disposed at a peripheral position between the upper substrate and the lower substrate;
  • the upper substrate includes a first transparent substrate and a transparent organic material layer disposed on the first transparent substrate, wherein the transparent organic material layer is provided with a plurality of rectangular through holes arranged in a matrix, and the plurality of rectangles
  • the through hole and the first transparent substrate enclose a plurality of sub-pixel grooves, and the plurality of sub-pixel grooves include a red sub-pixel groove, a green sub-pixel groove, a blue sub-pixel groove, and a white sub-pixel groove;
  • a red sub-pixel groove is provided with a mixture of red light quantum dots and a PDLC
  • the green sub-pixel groove is provided with a mixture of green light quantum dots and PDLC
  • the blue sub-pixel grooves are provided with blue quantum dots and a mixture of PDLCs in which only the PDLC is disposed in the white sub-pixel recess;
  • the lower substrate includes a second transparent substrate, a TFT layer disposed on the second transparent substrate, and a pixel electrode layer disposed on the TFT layer;
  • the pixel electrode layer includes a plurality of pixel electrodes arranged in a matrix, the number The pixel electrodes are respectively disposed corresponding to the plurality of sub-pixel grooves on the upper substrate.
  • Each of the plurality of sub-pixel grooves is a group of pixels, each pixel unit includes a red sub-pixel groove, a green sub-pixel groove, a blue sub-pixel groove, and a White sub-pixel groove.
  • a red sub-pixel groove, a green sub-pixel groove, a blue sub-pixel groove, And white sub-pixel grooves are arranged in any order.
  • the red light quantum dots, the green light quantum dots, and the blue light quantum dots are all electroluminescent quantum dots.
  • the red sub-pixel groove, the green sub-pixel groove, the blue sub-pixel groove, and the white sub-pixel groove respectively emit red, green, blue, and white light
  • the intensity of the red, green, blue, and white light emitted in the red sub-pixel groove, the green sub-pixel groove, the blue sub-pixel groove, and the white sub-pixel groove increases as the driving voltage increases.
  • the red sub-pixel groove, the green sub-pixel groove, the blue sub-pixel groove, and the white sub-pixel groove have a blur opaque effect without an applied voltage.
  • the invention also provides a method for manufacturing a display panel, comprising the following steps:
  • Step 1 providing a first transparent substrate, coating a transparent organic material on the first transparent substrate to form a transparent organic material layer;
  • Step 2 patterning the transparent organic material layer, forming a plurality of rectangular through holes arranged in a matrix on the transparent organic material layer, the plurality of rectangular through holes and the first transparent substrate enclosing a plurality of sub-portions Pixel groove
  • Step 3 dividing the plurality of sub-pixel grooves into a plurality of pixel units in groups of four, each pixel unit including a red sub-pixel groove, a green sub-pixel groove, and a blue sub-pixel concave a groove, and a white sub-pixel groove; a mixture of red light quantum dots and PDLC is printed on the red sub-pixel groove, and a mixture of green light quantum dots and PDLC is printed on the green sub-pixel groove. Directly printing a mixture of blue quantum dots and PDLC into the blue sub-pixel groove, printing PDLC into the white sub-pixel groove, and solidifying, thereby obtaining an upper substrate;
  • Step 4 providing a lower substrate, the lower substrate includes a second transparent substrate, a TFT layer disposed on the second transparent substrate, and a pixel electrode layer disposed on the TFT layer; the pixel electrode layer includes a number arranged in a matrix a plurality of pixel electrodes, wherein the plurality of pixel electrodes are respectively disposed corresponding to the plurality of sub-pixel grooves on the upper substrate;
  • Step 5 Apply a frame glue to the periphery of the lower substrate, and vacuum-bond the lower substrate and the upper substrate to obtain a display panel.
  • the step 2 is specifically: coating a photoresist layer on the transparent organic material layer, exposing and developing the photoresist layer by using a photomask, and using the photoresist layer as a shielding layer, and the transparent organic layer
  • the material layer is etched to obtain a plurality of rectangular through holes arranged in a matrix, and the plurality of rectangular through holes and the first transparent substrate enclose a plurality of sub-pixel grooves to remove the photoresist layer.
  • the red sub-pixel groove, the green sub-pixel groove, the blue sub-pixel groove, and the white sub-pixel groove in the pixel unit are arranged in any order.
  • the red light quantum dots, the green light quantum dots, and the blue light quantum dots are all electroluminescent quantum dots.
  • the spacer glue coated in the step 5 is provided with a spacer.
  • the present invention also provides a display panel comprising an upper substrate, a lower substrate, and a frame adhesive disposed at a peripheral position between the upper substrate and the lower substrate;
  • the upper substrate includes a first transparent substrate and a transparent organic material layer disposed on the first transparent substrate, wherein the transparent organic material layer is provided with a plurality of rectangular through holes arranged in a matrix, and the plurality of rectangles
  • the through hole and the first transparent substrate enclose a plurality of sub-pixel grooves, and the plurality of sub-pixel grooves include a red sub-pixel groove, a green sub-pixel groove, a blue sub-pixel groove, and a white sub-pixel groove;
  • a red sub-pixel groove is provided with a mixture of red light quantum dots and a PDLC
  • the green sub-pixel groove is provided with a mixture of green light quantum dots and PDLC
  • the blue sub-pixel grooves are provided with blue quantum dots and a mixture of PDLCs in which only the PDLC is disposed in the white sub-pixel recess;
  • the lower substrate includes a second transparent substrate, a TFT layer disposed on the second transparent substrate, and a pixel electrode layer disposed on the TFT layer;
  • the pixel electrode layer includes a plurality of pixel electrodes arranged in a matrix, the number The pixel electrodes are respectively disposed corresponding to the plurality of sub-pixel grooves on the upper substrate;
  • Each of the plurality of sub-pixel grooves is a group of pixels, and each of the pixel units includes a red sub-pixel groove, a green sub-pixel groove, and a blue sub-pixel groove. And a white sub-pixel groove;
  • the red light quantum dot, the green light quantum dot, and the blue light quantum dot are electroluminescent quantum dots;
  • the red sub-pixel groove, the green sub-pixel groove, the blue sub-pixel groove, and the white sub-pixel groove respectively emit red, green, blue, White light
  • the intensity of red, green, blue, and white light emitted from the red sub-pixel groove, the green sub-pixel groove, the blue sub-pixel groove, and the white sub-pixel groove increases with driving voltage
  • the red sub-pixel groove, the green sub-pixel groove, the blue sub-pixel groove, and the white sub-pixel groove have a blur opaque effect without an applied voltage.
  • the present invention provides a display panel and a method of fabricating the same, which has a simple structure and eliminates components such as a color photoresist layer, an alignment film, and a polarizer as compared with a conventional display panel.
  • the production cost is low, and the display effect is novel and special, and has five display effects of red, green, blue, white and fuzzy opacity, and has good display quality.
  • the manufacturing method of the display panel of the invention combines the polymer dispersed liquid crystal with the quantum dots, and transforms the structure of the traditional upper and lower substrates to obtain a novel display panel, which is compared with the process of the conventional display panel.
  • the production or addition of components such as a color photoresist layer, an alignment film, and a polarizer is simple, the manufacturing cost is low, and the display effect of the obtained display panel is novel and special, and has red, green, blue, white, and fuzzy opacity. Five display effects, so that the display panel has a good display quality.
  • FIG. 1 is a top plan view of an upper substrate in a display panel of the present invention
  • FIG. 2 is a top plan view of a lower substrate in a display panel of the present invention.
  • FIG. 3 is a schematic flow chart of a method for preparing a display panel of the present invention.
  • step 1 of a method for preparing a display panel of the present invention is a schematic view of step 1 of a method for preparing a display panel of the present invention
  • FIG. 5 is a schematic cross-sectional view showing a sub-pixel groove prepared in step 2 of the method for fabricating a display panel of the present invention
  • FIG. 6 is a schematic close-up view of a sub-pixel groove prepared in step 2 of the method for fabricating a display panel of the present invention.
  • the present invention firstly provides a display panel including an upper substrate 10 , a lower substrate 20 , and a frame glue disposed at a peripheral position between the upper substrate 10 and the lower substrate 20 (not shown). .
  • the upper substrate 10 includes a first transparent substrate (not shown) and a transparent organic material layer 12 disposed on the first transparent substrate.
  • the transparent organic material layer 12 is provided with a matrix.
  • Arranging a plurality of rectangular through holes, the plurality of rectangular through holes and the first transparent substrate enclosing a plurality of sub-pixel grooves 100, wherein the plurality of sub-pixel grooves 100 include a red sub-pixel groove 121 and a green sub-pixel groove 122.
  • the red sub-pixel groove 121 is provided with a mixture of a red light quantum dot and a PDLC
  • the green sub-pixel groove 122 is provided with a green light quantum.
  • a mixture of dots and PDLC, the mixture of blue quantum dots and PDLC is disposed in the blue sub-pixel recess 123, and only the PDLC is disposed in the white sub-pixel recess 124.
  • each of the plurality of sub-pixel grooves 100 is a group of pixels, and each of the pixel units 120 includes a red sub-pixel groove 121, a green sub-pixel groove 122, and a blue color.
  • a color sub-pixel groove 123 and a white sub-pixel groove 124, the red sub-pixel groove 121, the green sub-pixel groove 122, the blue sub-pixel groove 123, and the white sub-pixel groove in the pixel unit 120 124 can be arranged in any order.
  • the red light quantum dot, the green light quantum dot, and the blue light quantum dot are all electroluminescent quantum dots.
  • the red sub-pixel groove 121, the green sub-pixel groove 122, the blue sub-pixel groove 123, and the white sub-pixel groove 124 respectively emit red, Green, blue, white light, and the intensity of red, green, blue, and white light emitted from the red sub-pixel groove 121, the green sub-pixel groove 122, the blue sub-pixel groove 123, and the white sub-pixel groove 124 It increases as the drive voltage increases.
  • the red sub-pixel groove 121, the green sub-pixel groove 122, the blue sub-pixel groove 123, and the white sub-pixel groove 124 all have a blur opaque effect without an applied voltage.
  • the first transparent substrate is a glass substrate.
  • the lower substrate 20 includes a second transparent substrate 21 , a TFT layer (not shown) disposed on the second transparent substrate 21 , and a pixel electrode layer 22 disposed on the TFT layer.
  • the pixel electrode layer 22 includes a plurality of pixel electrodes 221 arranged in a matrix, and the plurality of pixel electrodes 221 are respectively disposed corresponding to the plurality of sub-pixel grooves 100 on the upper substrate 10 to drive the sub-pixel grooves 100.
  • the polymer disperses the liquid crystal and excites the quantum dots to emit light.
  • the second transparent substrate 21 is a glass substrate, and the material of the pixel electrode layer is ITO (indium tin oxide).
  • a spacer is disposed in the frame glue to maintain the spacing between the upper and lower substrates 10 and 20.
  • the display panel provided by the invention combines the polymer dispersed liquid crystal and the quantum dots, and transforms the structure of the traditional upper and lower substrates to form a novel display panel, which eliminates the color photoresist compared with the conventional display panel.
  • the layer, the alignment film, the polarizer and the like have simple structure and low manufacturing cost, and at the same time, the display effect of the display panel of the invention is novel and special, and has five display effects of red, green, blue, white and fuzzy opacity, so that the display panel Has a good display quality.
  • the present invention further provides a method for fabricating the above display panel, comprising the following steps:
  • Step 1 as shown in FIG. 4, a first transparent substrate 11 is provided, and a transparent organic material is coated on the first transparent substrate 11 to form a transparent organic material layer 12.
  • the first transparent substrate 11 is a glass substrate.
  • Step 2 As shown in FIG. 5 and FIG. 6, the transparent organic material layer 12 is patterned, and a plurality of rectangular through holes arranged in a matrix are formed on the transparent organic material layer 12, and the plurality of rectangles are formed.
  • the through hole and the first transparent substrate 11 enclose a plurality of sub-pixel grooves 100.
  • the step 2 is specifically: coating a photoresist layer on the transparent organic material layer 12, exposing and developing the photoresist layer by using a photomask, and using the photoresist layer as a shielding layer for the transparent layer.
  • the organic material layer 12 is etched to obtain a plurality of rectangular through holes arranged in a matrix, and the plurality of rectangular through holes
  • the hole and the first transparent substrate 11 enclose a plurality of sub-pixel grooves 100 to remove the photoresist layer.
  • Step 3 Referring to FIG. 1 , the plurality of sub-pixel grooves 100 are divided into a plurality of pixel units 120 according to each of four groups, and each of the pixel units 120 includes a red sub-pixel groove 121 and a green sub-pixel. a groove 122, a blue sub-pixel groove 123, and a white sub-pixel groove 124; a mixture of red light quantum dots and PDLC is printed in the red sub-pixel groove 121, and the green sub-pixel is concave A mixture of green light quantum dots and PDLC is printed in the groove 122, a mixture of blue quantum dots and PDLC is printed in the blue sub-pixel groove 123, and PDLC is printed on the white sub-pixel groove 124. And solidified to obtain the upper substrate 10 as shown in FIG.
  • the red sub-pixel groove 121, the green sub-pixel groove 122, the blue sub-pixel groove 123, and the white sub-pixel groove 124 in the pixel unit 120 may be arranged in any order.
  • the red light quantum dot, the green light quantum dot, and the blue light quantum dot are all electroluminescent quantum dots.
  • a lower substrate 20 is provided.
  • the lower substrate 20 includes a second transparent substrate 21, a TFT layer (not shown) disposed on the second transparent substrate 21, and pixels disposed on the TFT layer.
  • the electrode layer 22 includes a plurality of pixel electrodes 221 arranged in a matrix, and the plurality of pixel electrodes 221 are respectively disposed corresponding to the plurality of sub-pixel grooves 100 on the upper substrate 10.
  • the second transparent substrate 21 is a glass substrate.
  • the material of the pixel electrode layer is ITO (Indium Tin Oxide).
  • Step 5 Apply a frame glue to the periphery of the lower substrate 20, and vacuum-bond the lower substrate 20 and the upper substrate 10 to obtain the display panel of the present invention.
  • a spacer is disposed in the frame glue to maintain the spacing between the upper and lower substrates 10 and 20.
  • the manufacturing method of the above display panel is achieved by combining polymer dispersed liquid crystal and quantum dots, and modifying the structure of the traditional upper and lower substrates to obtain a new display panel, which is omitted compared with the conventional display panel process.
  • the production or addition of components such as a color photoresist layer, an alignment film, and a polarizer, the process is simple, the production cost is low, and the display effect of the obtained display panel is novel and special, and has five colors of red, green, blue, white, and fuzzy opacity.
  • the display effect makes the display panel have good display quality.
  • the present invention provides a display panel and a method of fabricating the same, the display panel having a simple structure, low fabrication cost, and good display quality.
  • the manufacturing method of the display panel of the invention combines the polymer dispersed liquid crystal with the quantum dots, and transforms the structure of the traditional upper and lower substrates to obtain a novel display panel, which is compared with the process of the conventional display panel.
  • the production or addition of components such as a color photoresist layer, an alignment film, and a polarizer is performed, and the process is simple.
  • the production cost is low, and the display effect of the obtained display panel is novel and special, and has five display effects of red, green, blue, white and fuzzy opacity, so that the display panel has good display quality.

Abstract

一种显示面板及其制作方法，通过将聚合物分散液晶与量子点进行结合，并对传统上、下基板的结构进行改造制得显示面板，与传统的显示面板的制程相比，省去了彩色光阻层、配向膜、及偏光片等部件的制作或添加，制程简单，制作成本低，同时制得的显示面板具有红、绿、蓝、白以及模糊不透明等五种显示效果，使得该显示面板具有良好的显示品质。

Description

显示面板及其制作方法 技术领域
本发明涉及显示技术领域，尤其涉及一种显示面板及其制作方法。
背景技术
液晶显示装置(LCD，Liquid Crystal Display)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括液晶显示面板及背光模组(backlight module)。通常液晶显示面板由彩膜基板(CF，Color Filter)、薄膜晶体管基板(TFT，Thin Film Transistor)、夹于彩膜基板与薄膜晶体管基板之间的液晶(LC，Liquid Crystal)及密封胶框(Sealant)组成；液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，通过玻璃基板通电与否来控制液晶分子取向，改变背光模组的光线的偏振状态，并藉由偏光板实现光路的穿透与阻挡，实现显示的目的。
聚合物分散液晶(polymer dispersed liquid crystal，PDLC)作为液晶调光阀，近年已被广泛关注和使用，其是将低分子液晶与预聚物相混合，在一定条件下经聚合反应，形成微米级的液晶微滴均匀地分散在高分子网络中，再利用液晶分子的介电各向异性获得具有电光响应特性的材料，它主要工作在散射态和透明态之间并具有一定的灰度。其工作原理是：在无外加电压的情形下，PDLC膜间不能形成有规律的电场，液晶微粒的光轴取向随机，呈现无序状态，其折射率与聚合物的折射率不匹配，入射光线被强烈散射，PDLC薄膜呈不透明或半透明状；施加了外电压后，液晶微粒的光轴垂直于薄膜表面排列，即与电场方向一致，液晶微粒的折射率与聚合物的折射率基本匹配，膜内无明显介面，构成了一基本均匀的介质，所以入射光不会发生散射，PDLC薄膜呈透明状。因此，在外加电场的驱动下，PDLC膜具备光开关特性，而且透明程度还会随着施加电压的增大而沿一定曲线式的提高。
另外，量子点(quantum dot，QD)作为新兴的显示器用材料，已经得到了广泛的认可和关注。量子点是准零维(quasi-zero-dimensional)的纳米材料，由少量的原子所构成。粗略地说，量子点三个维度的尺寸都在100纳米(nm)以下，外观恰似一极小的点状物，其内部电子在各方向上的运动都受到局限，所以量子限域效应(quantum confinement effect)特别显著。其具 有激发光谱宽且连续分布，而发射光谱窄而对称，颜色可调，光化学稳定性高，荧光寿命长等优越的特性，是一种理想的发光材料。当前量子点根据能量的获得方式不同而主要有两类，其一为光致发光，其二为电致发光。量子点的发光颜色符合量子点的尺寸效应，即通过控制量子点的形状、结构和尺寸，可以调节其能隙宽度、激子束缚能的大小以及激子的能量蓝移等电子状态。随着量子点尺寸的逐渐减小，量子点的光吸收谱出现蓝移现象。尺寸越小，则谱蓝移现象也越显著。
发明内容
本发明的目的在于提供一种显示面板，与传统的显示面板相比，结构简单，制作成本低，同时具有良好的显示品质。
本发明的另一目的在于提供一种显示面板的制作方法，通过将聚合物分散液晶与量子点进行结合，并对传统上、下基板的结构进行改造，制得新型显示面板，与传统的显示面板的制程相比，省去了彩色光阻层、配向膜、及偏光片等部件的制作或添加，制程简单，制作成本低，同时制得的显示面板的显示效果新颖特殊，具有红、绿、蓝、白以及模糊不透明等五种显示效果，使得该显示面板具有良好的显示品质。
为实现上述目的，本发明首先提供一种显示面板，包括上基板、下基板、及设于所述上基板与下基板之间周边位置的边框胶；
所述上基板包括第一透明基板、及设于所述第一透明基板上的透明有机材料层，所述透明有机材料层中设有呈矩阵排列的数个矩形通孔，所述数个矩形通孔与第一透明基板围成数个子像素凹槽，所述数个子像素凹槽包括红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽；所述红色子像素凹槽内设有红光量子点与PDLC的混合物，所述绿色子像素凹槽内设有绿光量子点与PDLC的混合物，所述蓝色子像素凹槽内设有蓝光量子点与PDLC的混合物，所述白色子像素凹槽内仅设有PDLC；
所述下基板包括第二透明基板、设于第二透明基板上的TFT层、及设于TFT层上的像素电极层；所述像素电极层包括呈矩阵排列的数个像素电极，所述数个像素电极分别与所述上基板上的数个子像素凹槽对应设置。
所述数个子像素凹槽中每四个为一组，组成数个像素单元，每个像素单元包括一个红色子像素凹槽、一个绿色子像素凹槽、一个蓝色子像素凹槽、及一个白色子像素凹槽。
所述像素单元中红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、 及白色子像素凹槽按照任意顺序排列。
所述红光量子点、绿光量子点、蓝光量子点均为电致发光量子点。
在背景光为白光且施加电压的情况下，所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽中分别发出红、绿、蓝、白光，且所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽中发出的红、绿、蓝、白光的强度随着驱动电压的增大而增大；而在无外加电压的情况下，所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽均呈模糊不透光效果。
本发明还提供一种显示面板的制作方法，包括如下步骤：
步骤1、提供第一透明基板，在所述第一透明基板上涂布一层透明有机材料，形成透明有机材料层；
步骤2、对所述透明有机材料层进行图案化处理，在所述透明有机材料层上形成呈矩阵排列的数个矩形通孔，所述数个矩形通孔与第一透明基板围成数个子像素凹槽；
步骤3、将所述数个子像素凹槽按照每四个为一组，分成数个像素单元，每个像素单元包括一个红色子像素凹槽、一个绿色子像素凹槽、一个蓝色子像素凹槽、及一个白色子像素凹槽；向所述红色子像素凹槽内定点喷印红光量子点与PDLC的混合物，向所述绿色子像素凹槽内定点喷印绿光量子点与PDLC的混合物，向所述蓝色子像素凹槽内定点喷印蓝光量子点与PDLC的混合物，向所述白色子像素凹槽内定点喷印PDLC，固化，从而得到上基板；
步骤4、提供下基板，所述下基板包括第二透明基板、设于第二透明基板上的TFT层、及设于TFT层上的像素电极层；所述像素电极层包括呈矩阵排列的数个像素电极，所述数个像素电极分别与所述上基板上的数个子像素凹槽对应设置；
步骤5、在所述下基板周边涂布边框胶，将所述下基板与上基板进行真空贴合，得到显示面板。
所述步骤2具体为：在所述透明有机材料层上涂布光阻层，利用光罩对所述光阻层进行曝光、显影，以所述光阻层为遮蔽层，对所述透明有机材料层进行蚀刻，得到呈矩阵排列的数个矩形通孔，所述数个矩形通孔与第一透明基板围成数个子像素凹槽，去除光阻层。
所述像素单元中红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽按照任意顺序排列。
所述红光量子点、绿光量子点、蓝光量子点均为电致发光量子点。
所述步骤5涂布的边框胶内设有间隔材。
本发明还提供一种显示面板，包括上基板、下基板、及设于所述上基板与下基板之间周边位置的边框胶；
所述上基板包括第一透明基板、及设于所述第一透明基板上的透明有机材料层，所述透明有机材料层中设有呈矩阵排列的数个矩形通孔，所述数个矩形通孔与第一透明基板围成数个子像素凹槽，所述数个子像素凹槽包括红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽；所述红色子像素凹槽内设有红光量子点与PDLC的混合物，所述绿色子像素凹槽内设有绿光量子点与PDLC的混合物，所述蓝色子像素凹槽内设有蓝光量子点与PDLC的混合物，所述白色子像素凹槽内仅设有PDLC；
所述下基板包括第二透明基板、设于第二透明基板上的TFT层、及设于TFT层上的像素电极层；所述像素电极层包括呈矩阵排列的数个像素电极，所述数个像素电极分别与所述上基板上的数个子像素凹槽对应设置；
其中，所述数个子像素凹槽中每四个为一组，组成数个像素单元，每个像素单元包括一个红色子像素凹槽、一个绿色子像素凹槽、一个蓝色子像素凹槽、及一个白色子像素凹槽；
其中，所述红光量子点、绿光量子点、蓝光量子点均为电致发光量子点；
其中，在背景光为白光且施加电压的情况下，所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽中分别发出红、绿、蓝、白光，且所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽中发出的红、绿、蓝、白光的强度随着驱动电压的增大而增大；而在无外加电压的情况下，所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽均呈模糊不透光效果。
本发明的有益效果：本发明提供一种显示面板及其制作方法，所述显示面板的结构简单，与传统的显示面板相比，省去了彩色光阻层、配向膜、及偏光片等部件，制作成本低，同时显示效果新颖特殊，具有红、绿、蓝、白以及模糊不透明等五种显示效果，具有良好的显示品质。本发明的显示面板的制作方法，通过将聚合物分散液晶与量子点进行结合，并对传统上、下基板的结构进行改造，制得新型显示面板，与传统的显示面板的制程相比，省去了彩色光阻层、配向膜、及偏光片等部件的制作或添加，制程简单，制作成本低，同时制得的显示面板的显示效果新颖特殊，具有红、绿、蓝、白以及模糊不透明等五种显示效果，使得该显示面板具有良好的显示 品质。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其他有益效果显而易见。
附图中，
图1为本发明显示面板中的上基板的俯视示意图；
图2为本发明显示面板中的下基板的俯视示意图；
图3为本发明显示面板的制备方法的示意流程图；
图4为本发明显示面板的制备方法的步骤1的示意图；
图5为本发明显示面板的制备方法的步骤2制得的子像素凹槽的剖面示意图；
图6为本发明显示面板的制备方法的步骤2制得的子像素凹槽的附视示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1及图2，本发明首先提供一种显示面板，包括上基板10、下基板20、及设于所述上基板10与下基板20之间周边位置的边框胶(未图示)。
请参阅图1，所述上基板10包括第一透明基板(未图示)、及设于所述第一透明基板上的透明有机材料层12，所述透明有机材料层12中设有呈矩阵排列的数个矩形通孔，所述数个矩形通孔与第一透明基板围成数个子像素凹槽100，所述数个子像素凹槽100包括红色子像素凹槽121、绿色子像素凹槽122、蓝色子像素凹槽123、及白色子像素凹槽124；所述红色子像素凹槽121内设有红光量子点与PDLC的混合物，所述绿色子像素凹槽122内设有绿光量子点与PDLC的混合物，所述蓝色子像素凹槽123内设有蓝光量子点与PDLC的混合物，所述白色子像素凹槽124内仅设有PDLC。
具体的，所述数个子像素凹槽100中每四个为一组，组成数个像素单元120，每个像素单元120包括一个红色子像素凹槽121、一个绿色子像素凹槽122、一个蓝色子像素凹槽123、及一个白色子像素凹槽124，所述像素单元120中红色子像素凹槽121、绿色子像素凹槽122、蓝色子像素凹槽123、及白色子像素凹槽124可以按照任意顺序排列。
具体的，所述红光量子点、绿光量子点、蓝光量子点均为电致发光量子点。
因此，在背景光为白光且施加电压的情况下，所述红色子像素凹槽121、绿色子像素凹槽122、蓝色子像素凹槽123、及白色子像素凹槽124中分别发出红、绿、蓝、白光，且所述红色子像素凹槽121、绿色子像素凹槽122、蓝色子像素凹槽123、及白色子像素凹槽124中发出的红、绿、蓝、白光的强度随着驱动电压的增大而增大。而在无外加电压的情况下，所述红色子像素凹槽121、绿色子像素凹槽122、蓝色子像素凹槽123、及白色子像素凹槽124均呈模糊不透光效果。
优选的，所述第一透明基板为玻璃基板。
请参阅图2，所述下基板20包括第二透明基板21、设于第二透明基板21上的TFT层(未图示)、及设于TFT层上的像素电极层22。
所述像素电极层22包括呈矩阵排列的数个像素电极221，所述数个像素电极221分别与所述上基板10上的数个子像素凹槽100对应设置，以驱动子像素凹槽100内的聚合物分散液晶和激发量子点发光。
具体的，所述第二透明基板21为玻璃基板，所述像素电极层的材料为ITO(氧化铟锡)。
具体的，所述边框胶内设有间隔材，以维持上、下基板10、20的间距。
本发明提供的显示面板，通过将聚合物分散液晶及量子点进行结合，并对传统上、下基板的结构进行改造，形成新型显示面板，与传统的显示面板相比，省去了彩色光阻层、配向膜、及偏光片等部件，结构简单，制作成本低，同时本发明显示面板的显示效果新颖特殊，具有红、绿、蓝、白以及模糊不透明等五种显示效果，使得该显示面板具有良好的显示品质。
请参阅图3，本发明还提供一种上述显示面板的制作方法，包括如下步骤：
步骤1、如图4所示，提供第一透明基板11，在所述第一透明基板11上涂布一层透明有机材料，形成透明有机材料层12。
优选的，第一透明基板11为玻璃基板。
步骤2、如图5和图6所示，对所述透明有机材料层12进行图案化处理，在所述透明有机材料层12上形成呈矩阵排列的数个矩形通孔，所述数个矩形通孔与第一透明基板11围成数个子像素凹槽100。
所述步骤2具体为：在所述透明有机材料层12上涂布光阻层，利用光罩对所述光阻层进行曝光、显影，以所述光阻层为遮蔽层，对所述透明有机材料层12进行蚀刻，得到呈矩阵排列的数个矩形通孔，所述数个矩形通 孔与第一透明基板11围成数个子像素凹槽100，去除光阻层。
步骤3、请参阅图1，将所述数个子像素凹槽100按照每四个为一组，分成数个像素单元120，每个像素单元120包括一个红色子像素凹槽121、一个绿色子像素凹槽122、一个蓝色子像素凹槽123、及一个白色子像素凹槽124；向所述红色子像素凹槽121内定点喷印红光量子点与PDLC的混合物，向所述绿色子像素凹槽122内定点喷印绿光量子点与PDLC的混合物，向所述蓝色子像素凹槽123内定点喷印蓝光量子点与PDLC的混合物，向所述白色子像素凹槽124内定点喷印PDLC，固化，从而得到如图1所示的上基板10。
具体的，所述像素单元120中红色子像素凹槽121、绿色子像素凹槽122、蓝色子像素凹槽123、及白色子像素凹槽124可以按照任意顺序排列。
具体的，所述红光量子点、绿光量子点、蓝光量子点均为电致发光量子点。
步骤4、请参阅图2，提供下基板20，所述下基板20包括第二透明基板21、设于第二透明基板21上的TFT层(未图示)、及设于TFT层上的像素电极层22；所述像素电极层22包括呈矩阵排列的数个像素电极221，所述数个像素电极221分别与所述上基板10上的数个子像素凹槽100对应设置。
优选的，所述第二透明基板21为玻璃基板。所述像素电极层的材料为ITO(氧化铟锡)。
步骤5、在所述下基板20周边涂布边框胶，将所述下基板20与上基板10进行真空贴合，制得本发明的显示面板。
具体的，所述边框胶内设有间隔材，以维持上、下基板10、20的间距。
上述显示面板的制作方法，通过将聚合物分散液晶与量子点进行结合，并对传统上、下基板的结构进行改造，制得新型显示面板，与传统的显示面板的制程相比，省去了彩色光阻层、配向膜、及偏光片等部件的制作或添加，制程简单，制作成本低，同时制得的显示面板的显示效果新颖特殊，具有红、绿、蓝、白以及模糊不透明等五种显示效果，使得该显示面板具有良好的显示品质。
综上所述，本发明提供一种显示面板及其制作方法，所述显示面板的结构简单，制作成本低，同时具有良好的显示品质。本发明的显示面板的制作方法，通过将聚合物分散液晶与量子点进行结合，并对传统上、下基板的结构进行改造，制得新型显示面板，与传统的显示面板的制程相比，省去了彩色光阻层、配向膜、及偏光片等部件的制作或添加，制程简单， 制作成本低，同时制得的显示面板的显示效果新颖特殊，具有红、绿、蓝、白以及模糊不透明等五种显示效果，使得该显示面板具有良好的显示品质。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (12)

  1. 一种显示面板，包括上基板、下基板、及设于所述上基板与下基板之间周边位置的边框胶；
    所述上基板包括第一透明基板、及设于所述第一透明基板上的透明有机材料层，所述透明有机材料层中设有呈矩阵排列的数个矩形通孔，所述数个矩形通孔与第一透明基板围成数个子像素凹槽，所述数个子像素凹槽包括红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽；所述红色子像素凹槽内设有红光量子点与PDLC的混合物，所述绿色子像素凹槽内设有绿光量子点与PDLC的混合物，所述蓝色子像素凹槽内设有蓝光量子点与PDLC的混合物，所述白色子像素凹槽内仅设有PDLC；
    所述下基板包括第二透明基板、设于第二透明基板上的TFT层、及设于TFT层上的像素电极层；所述像素电极层包括呈矩阵排列的数个像素电极，所述数个像素电极分别与所述上基板上的数个子像素凹槽对应设置。
  2. 如权利要求1所述的显示面板，其中，所述数个子像素凹槽中每四个为一组，组成数个像素单元，每个像素单元包括一个红色子像素凹槽、一个绿色子像素凹槽、一个蓝色子像素凹槽、及一个白色子像素凹槽。
  3. 如权利要求2所述的显示面板，其中，所述像素单元中红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽按照任意顺序排列。
  4. 如权利要求1所述的显示面板，其中，所述红光量子点、绿光量子点、蓝光量子点均为电致发光量子点。
  5. 如权利要求1所述的显示面板，其中，在背景光为白光且施加电压的情况下，所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽中分别发出红、绿、蓝、白光，且所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽中发出的红、绿、蓝、白光的强度随着驱动电压的增大而增大；而在无外加电压的情况下，所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽均呈模糊不透光效果。
  6. 一种显示面板的制作方法，包括如下步骤：
    步骤1、提供第一透明基板，在所述第一透明基板上涂布一层透明有机材料，形成透明有机材料层；
    步骤2、对所述透明有机材料层进行图案化处理，在所述透明有机材料层上形成呈矩阵排列的数个矩形通孔，所述数个矩形通孔与第一透明基板围成数个子像素凹槽；
    步骤3、将所述数个子像素凹槽按照每四个为一组，分成数个像素单元，每个像素单元包括一个红色子像素凹槽、一个绿色子像素凹槽、一个蓝色子像素凹槽、及一个白色子像素凹槽；向所述红色子像素凹槽内定点喷印红光量子点与PDLC的混合物，向所述绿色子像素凹槽内定点喷印绿光量子点与PDLC的混合物，向所述蓝色子像素凹槽内定点喷印蓝光量子点与PDLC的混合物，向所述白色子像素凹槽内定点喷印PDLC，固化，从而得到上基板；
    步骤4、提供下基板，所述下基板包括第二透明基板、设于第二透明基板上的TFT层、及设于TFT层上的像素电极层；所述像素电极层包括呈矩阵排列的数个像素电极，所述数个像素电极分别与所述上基板上的数个子像素凹槽对应设置；
    步骤5、在所述下基板周边涂布边框胶，将所述下基板与上基板进行真空贴合，得到显示面板。
  7. 如权利要求6所述的显示面板的制作方法，其中，所述步骤2具体为：在所述透明有机材料层上涂布光阻层，利用光罩对所述光阻层进行曝光、显影，以所述光阻层为遮蔽层，对所述透明有机材料层进行蚀刻，得到呈矩阵排列的数个矩形通孔，所述数个矩形通孔与第一透明基板围成数个子像素凹槽，去除光阻层。
  8. 如权利要求6所述的显示面板的制作方法，其中，所述像素单元中红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽按照任意顺序排列。
  9. 如权利要求6所述的显示面板的制作方法，其中，所述红光量子点、绿光量子点、蓝光量子点均为电致发光量子点。
  10. 如权利要求6所述的显示面板的制作方法，其中，所述步骤5涂布的边框胶内设有间隔材。
  11. 一种显示面板，包括上基板、下基板、及设于所述上基板与下基板之间周边位置的边框胶；
    所述上基板包括第一透明基板、及设于所述第一透明基板上的透明有机材料层，所述透明有机材料层中设有呈矩阵排列的数个矩形通孔，所述数个矩形通孔与第一透明基板围成数个子像素凹槽，所述数个子像素凹槽包括红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素 凹槽；所述红色子像素凹槽内设有红光量子点与PDLC的混合物，所述绿色子像素凹槽内设有绿光量子点与PDLC的混合物，所述蓝色子像素凹槽内设有蓝光量子点与PDLC的混合物，所述白色子像素凹槽内仅设有PDLC；
    所述下基板包括第二透明基板、设于第二透明基板上的TFT层、及设于TFT层上的像素电极层；所述像素电极层包括呈矩阵排列的数个像素电极，所述数个像素电极分别与所述上基板上的数个子像素凹槽对应设置；
    其中，所述数个子像素凹槽中每四个为一组，组成数个像素单元，每个像素单元包括一个红色子像素凹槽、一个绿色子像素凹槽、一个蓝色子像素凹槽、及一个白色子像素凹槽；
    其中，所述红光量子点、绿光量子点、蓝光量子点均为电致发光量子点；
    其中，在背景光为白光且施加电压的情况下，所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽中分别发出红、绿、蓝、白光，且所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽中发出的红、绿、蓝、白光的强度随着驱动电压的增大而增大；而在无外加电压的情况下，所述红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽均呈模糊不透光效果。
  12. 如权利要求11所述的显示面板，其中，所述像素单元中红色子像素凹槽、绿色子像素凹槽、蓝色子像素凹槽、及白色子像素凹槽按照任意顺序排列。
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