WO2014166179A1 - 液晶显示屏、显示装置及量子点层图形化的方法 - Google Patents

液晶显示屏、显示装置及量子点层图形化的方法 Download PDF

Info

Publication number
WO2014166179A1
WO2014166179A1 PCT/CN2013/080065 CN2013080065W WO2014166179A1 WO 2014166179 A1 WO2014166179 A1 WO 2014166179A1 CN 2013080065 W CN2013080065 W CN 2013080065W WO 2014166179 A1 WO2014166179 A1 WO 2014166179A1
Authority
WO
WIPO (PCT)
Prior art keywords
quantum dot
liquid crystal
crystal display
light
monochromatic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2013/080065
Other languages
English (en)
French (fr)
Inventor
郭仁炜
董学
车春城
谢建云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Beijing BOE Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd, Beijing BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US14/355,112 priority Critical patent/US9575358B2/en
Publication of WO2014166179A1 publication Critical patent/WO2014166179A1/zh
Anticipated expiration legal-status Critical
Priority to US15/352,022 priority patent/US9690135B2/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B05D1/005—Spin coating
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • 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
    • G02F1/134372—Electrodes characterised by their geometrical arrangement for fringe field switching [FFS] where the common electrode is not patterned
    • 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
    • G02F1/136222—Colour filters incorporated in the active matrix substrate
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/36—Micro- or nanomaterials

Definitions

  • Liquid crystal display, display device and quantum dot layer patterning method Liquid crystal display, display device and quantum dot layer patterning method
  • Embodiments of the present invention relate to a method of liquid crystal display, display device, and quantum dot layer patterning. Background technique
  • Quantum Dots also known as nanocrystals, are a type II-VI or III.
  • Nanoparticles composed of V group elements.
  • the particle size of a quantum dot is generally between 1 and 20 nm. Since electrons and holes are quantum confined, a continuous band structure becomes a discrete energy level structure, and after excitation, fluorescence can be emitted.
  • the emission spectrum of a quantum dot can be controlled by changing the size of the quantum dot. By changing the size of the quantum dot and its chemical composition, it can emit its optical language covering the entire visible region. Taking the CdTe quantum point as an example, when its particle size is grown from 2.5 nm to 4.0 nm, the emission wavelength can be red shifted from 510 nm to 660 nm.
  • quantum dots can be used as molecular probes for fluorescent labels by using the luminescent properties of quantum dots, and can also be applied to display devices.
  • the monochromatic quantum dot is used as the illumination source of the backlight module of the liquid crystal display, the monochromatic quantum dot is excited by the blue light emitted by the blue LED to emit a monochromatic light mixed with the blue light to form white light, and the white light has a comparison. Large color gamut can improve picture quality.
  • quantum dots are applied to the interior of a liquid crystal display. Summary of the invention
  • Embodiments of the present invention provide a method for liquid crystal display, display device, and quantum dot layer patterning to improve the color gamut of a display screen, thereby improving picture quality.
  • a liquid crystal display panel includes: a counter substrate, an array substrate, and a liquid crystal layer between the opposite substrate and the array substrate, wherein the liquid crystal display is disposed in the liquid crystal display a pixel unit, each of the pixel units having a plurality of sub-pixel units displaying different colors, and a monochromatic quantum dot layer is disposed at a position of the opposite substrate or the array substrate corresponding to the sub-pixel unit of at least one color of each pixel unit
  • the monochromatic quantum dot layer emits monochromatic light corresponding to the color of the sub-pixel unit after being excited by the background light.
  • a display device including an embodiment of the present invention is provided LCD screen provided.
  • a method of patterning a quantum dot layer comprising: applying a mixture comprising a monochromatic quantum dot, a phenolic resin derivative, a diazonaphthol derivative, and a photoinitiator to On the substrate; ultraviolet light is transmitted through the unit of the mask to irradiate the substrate, and the phenolic resin derivative and the diazonaphthol derivative are polymerized by the photoinitiator to form a polymer network.
  • the monochromatic quantum dots are uniformly: within the polymer network.
  • FIG. 1 and FIG. 1b are schematic structural views of a liquid crystal display according to an embodiment of the present invention
  • FIG. 2 is a color gamut simulation diagram of a liquid crystal display and an existing liquid crystal display according to an embodiment of the present invention
  • 3a-3d are schematic diagrams showing the arrangement of sub-pixel units in a pixel unit according to an embodiment of the invention.
  • FIGS. 4a-4k are schematic views of steps of preparing an array substrate according to an embodiment of the present invention
  • FIGS. 5a-5e are schematic views showing steps of preparing a counter substrate according to an embodiment of the present invention
  • FIG. 6 is a view of an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of quantum dots dispersed in a polymer network according to an embodiment of the invention
  • FIGS. 8a-8f are quantum dot layers according to an embodiment of the invention Schematic diagram of the various steps of the graphical method. detailed description
  • the thickness and area shape of the layers in the drawings are for illustrative purposes only and do not reflect the true scale of the array substrate or the opposing substrate.
  • Connected” or “connected” and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
  • “Upper”, “lower”, “left”, “right”, etc. are only used to indicate the relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may also change accordingly.
  • a liquid crystal display panel includes: a counter substrate 1, an array substrate 2, and a liquid crystal layer 3 between the opposite substrate 1 and the array substrate 2.
  • a plurality of pixel units are disposed on the array substrate 2, that is, a plurality of pixel units are disposed in the liquid crystal display panel, and the pixel units are arranged in an array.
  • Each pixel unit has a plurality of sub-pixel units that display different colors (each sub-pixel unit is shown as a dashed box in the figure).
  • a monochrome quantum dot layer 01 is disposed at a position of the opposite substrate or the array substrate corresponding to the sub-pixel unit of at least one color of each pixel unit, and the monochromatic quantum dot layer 01 is subjected to the background. After the light is excited, a monochromatic light corresponding to the color of the sub-pixel unit is emitted.
  • the monochromatic quantum dot layer comprises a polymer network and monochromatic quantum dots uniformly dispersed in the polymer network, for example, a polymer network and uniformly dispersed in the polymer network.
  • the high molecular polymer network is formed by a mixture of a phenolic acid resin derivative and a diazonaphthol derivative which is polymerized by ultraviolet light irradiation under the action of a photoinitiator.
  • a monochrome quantum dot layer is used instead of the existing color resin as a color filter to convert the background light into monochromatic light; and a pixel electrode and a common electrode are generated through the sub-pixel unit.
  • the electric field controls the deflection of the liquid crystal molecules in the liquid crystal layer, and adjusts the light intensity (gray scale) passing through the sub-pixel unit to realize color liquid crystal display. Since the quantum dot emitting light is narrow and the luminous efficiency is high, the background light can be efficiently converted into monochromatic light.
  • each monochromatic quantum dot layer emits monochromatic light of different colors, such as a combination of red light, yellow light, green light, cyan light, and blue light
  • the composition of the gamut curve can reach the gamut boundary (shown by the dashed line in the figure), relative to the gamut curve composed of the traditional red, green and blue primary colors (shown by the solid line in Fig. 2), due to the increase of the embodiment of the present invention.
  • Other pure colors, as described above, can increase the bounds of the color gamut.
  • the QD is adjusted to a certain size, it can emit yellow light. Due to QD The half-peak width of the emitted light is narrower, and relatively pure light can be obtained.
  • the area of the color gamut having four corners in the present invention is larger, that is, the QD illuminating display can obtain a larger color gamut.
  • the present invention can improve the color gamut of the liquid crystal display, enhance the color saturation, and improve the display port of the display screen.
  • the high molecular polymer network is formed by ultraviolet light irradiation of a mixture of a phenolic resin derivative and a diazonaphthol derivative, so that monochromatic quantum dots can be uniformly dispersed in the polymer network, and the quantum dot layer can be patterned to prevent
  • the accumulation of quantum dots increases the quantum yield of quantum dots to improve quantum excitation efficiency.
  • the polymer network can block air and monochromatic quantum dots, avoiding monochromatic quantum dots from contacting with oxygen, increasing the lifetime of quantum dots.
  • the above liquid crystal display provided by the embodiment of the present invention can be applied to various modes, for example, can be applied to an in-plane switch (IPS, In-Plane Switch) and an advanced super-dimensional field switch (ADS, Advanced Super) capable of realizing a wide viewing angle.
  • Dimension Switch liquid crystal display can also be applied to traditional TN (Twisted Nematic) LCD screens.
  • the liquid crystal display of these modes is just some examples, and the present invention is not limited to these applicable modes.
  • liquid crystal display screens provided by the embodiments of the present invention are all described by taking an ADS type liquid crystal display as an example.
  • a monochromatic quantum dot layer 01 is disposed in each sub-pixel unit.
  • a monochromatic quantum dot layer 01 may be disposed on a side of the array substrate 2 facing the liquid crystal layer 3.
  • the array substrate 2 shown in Fig. la has a common electrode 02, and the monochromatic quantum dot layer 01 is disposed on the upper side of the common electrode 02.
  • the common electrode 02 may be located above the pixel electrode 08 of the array substrate 2 as shown in FIG. 1a, or may be located under the pixel electrode in another embodiment, or in another embodiment, the common electrode 02 and the pixel electrode.
  • each monochromatic quantum dot layer 01 may be disposed on a side of the array substrate 2 facing away from the liquid crystal layer 3 (as shown in the lower side of the array substrate 2 in FIG. 1a) according to the needs of the preparation process.
  • each of the monochromatic quantum dot layers 01 is disposed between other film layers in the array substrate 2, and the present invention is not limited thereto.
  • the background light from the lower side of the array substrate 2 is first irradiated to each monochromatic quantum dot layer 01 located in the sub-pixel unit, and the quantum dots in each monochromatic quantum dot layer 01 are excited by the background light to generate corresponding monochromatic light, and then each single The color light is adjusted by the liquid crystal layer controlled by the electric field generated between the common electrode 02 and the pixel electrode 08, and the intensity of each monochromatic light is changed to realize color liquid crystal display.
  • the black matrix 03 can be It is disposed in the same layer as each of the monochromatic quantum dot layers 01. As shown in FIG. 1a, both the black matrix 03 and the monochromatic quantum dot layer 01 can be disposed on the array substrate 2; of course, the black matrix 03 can also be disposed in the pair.
  • the side of the substrate 1 facing the liquid crystal layer 3 is provided, and the present invention is not limited thereto.
  • a monochromatic quantum dot layer 01 is disposed in each sub-pixel unit.
  • a monochromatic quantum dot layer 01 may be disposed on a side of the opposite substrate 1 facing the liquid crystal layer 3, as shown in FIG.
  • the background light from the lower side of the array substrate 2 is first adjusted by the electric field controlled by the electric field generated between the common electrode 02 and the pixel electrode 08, and the intensity of the background light changes, and then irradiated to each monochromatic quantum located in the sub-pixel unit.
  • the quantum dots in each of the monochromatic quantum dot layers 01 are excited by the background light to generate corresponding monochromatic light, thereby realizing color liquid crystal display.
  • a backlight module is further disposed on a side of the array substrate facing away from the liquid crystal layer (as shown on the lower side of the array substrate 2 in FIGS. 1a and 1b).
  • the background light emitted by the backlight module is blue light, and the center wavelength of the blue light is preferably about 450 nm, so that the monochromatic quantum dots in each monochromatic quantum dot layer are excited to emit corresponding monochromatic light.
  • the present invention is not limited thereto.
  • the backlight module is, for example, a side-illuminated backlight module or a direct-lit backlight module, and the light source used is, for example, a light-emitting diode (LED).
  • an absorption layer 04 having blue light absorption may be disposed on the position of the sub-pixel unit corresponding to each of the monochromatic quantum dot layers 01, and corresponding to the sub-pixel unit emitting blue light.
  • the absorption layer 04 is not provided at the position.
  • the absorbing layer 04 may be disposed on the side of the counter substrate 1 facing the liquid crystal layer 3.
  • the absorbing layer 04 can also block the external blue light that is irradiated from the opposite substrate 1 away from the liquid crystal layer 3 side into the liquid crystal display panel, and avoid the external blue light to excite the quantum dots in the monochromatic quantum dot layer, so that the sub-pixel unit is emitted.
  • the intensity of monochromatic light is uncontrollable and affects the quality of liquid crystal display.
  • the material of the absorbent layer 04 may be 5-(1-methyl-2-pyrrolidinomethyl)rhodanine or a derivative thereof.
  • blue light can also be directly used as one of the primary colors constituting the pixel unit, that is, if each pixel unit has a display N sub-pixel units of different colors, wherein sub-pixel units of N-1 colors are respectively provided with a monochromatic quantum dot layer, and one sub-pixel unit is not provided with a monochromatic quantum dot layer (so that Via), the blue light as the background light passes directly through the sub-pixel unit, and emits blue light modulated by the liquid crystal layer, and N is a positive integer greater than or equal to 2.
  • N is a positive integer greater than or equal to 2.
  • the display colors of the two sub-pixel units constituting one pixel unit are complement colors, for example, orange and blue, respectively.
  • one pixel unit may be composed of 4 colors, 5 colors or 6 colors, but the present invention is not limited thereto.
  • a pixel unit consists of four colors of blue, red, green, and yellow
  • one pixel unit has four sub-pixel units, and the four sub-pixel units can be arranged in combination as shown in FIG. 3a, or as shown in FIG. 3b. The arrangement shown is combined, but the invention is not limited thereto.
  • a monochrome quantum dot layer is not disposed at one sub-pixel unit, and the background blue light directly passes through, that is, a via structure, and the other three sub-pixel units are respectively provided with red-emitting monochromatic quantum.
  • a layered, green-emitting monochromatic quantum dot layer and a yellow-emitting monochromatic quantum dot layer is composed of five colors of blue, red, green, yellow, and orange
  • one pixel unit has five sub-pixel units, and the five sub-pixel units can be arranged in combination as shown in FIG. 3c, one of which There is no monochromatic quantum dot layer at the sub-pixel unit, which is a via structure, and the background blue light passes directly.
  • the other four sub-pixel units are respectively provided with a red-emitting monochromatic quantum dot layer and a green-emitting monochromatic quantum.
  • a layer of dots, a monochromatic quantum dot layer that emits yellow light, and a monochromatic quantum dot layer that emits orange light For another example, when one pixel unit is composed of five colors of blue, red, green, yellow, orange, and cyan, one pixel unit has six sub-pixel units, and the six sub-pixel units can be arranged in combination as shown in FIG. 3d.
  • One of the sub-pixel units is not provided with a monochromatic quantum dot layer, that is, a via structure, the background blue light directly passes through, and the other five sub-pixel units are respectively provided with a red-emitting monochromatic quantum dot layer and a green-emitting single A quantum dot layer, a monochromatic quantum dot layer that emits yellow light, a monochromatic quantum dot layer that emits orange light, and a monochromatic quantum dot layer that emits cyan light.
  • the arrangement of the sub-pixel units in each pixel unit is not limited to the arrangement as shown in Figures 3a-3d, for example, the sub-pixel units in the upper and lower rows may be arranged offset from each other.
  • a single-color quantum dot layer that emits red, green, yellow, orange, or cyan light after being excited by the background light can be used to control the light-emitting band of the quantum dot by controlling the particle size of the quantum dot.
  • the quantum dots emitting red light are mainly about 9-10 nm
  • the size of the emitted yellow light quantum dots is about 8 nm
  • the size of the quantum dots emitting green light is about 7 nm.
  • the monochromatic quantum dot layer in the embodiment of the present invention refers to the same quantum dot disposed at the position of the array substrate or the opposite substrate corresponding to the sub-pixel unit of the same color; sub-pixels of different colors
  • the quantum dots at the positions of the array substrate or the opposite substrate corresponding to the unit are different.
  • the difference may be a quantum dot size or a material, etc., as long as the quantum dots at the sub-pixel units corresponding to the respective colors are excited to emit only the monochromatic light corresponding to the color of the sub-pixel unit. That is to say, the quantum dots of the respective regions of the monochromatic quantum dot layer can only emit monochromatic light after being excited, but the monochromatic light emitted by the regions corresponding to the sub-pixel units of different colors is different.
  • the liquid crystal display panel on which the monochromatic quantum dot layers are disposed on the array substrate is taken as an example.
  • the manufacturing process of the array substrate, as shown in FIG. 4a to FIG. 4k, may include the following steps:
  • pixel electrode 08 on the active layer 07 and the gate insulating layer 06, the pixel electrode 08 being a plate electrode, as shown in FIG. 4d; the source and the drain), as shown in FIG. 4e;
  • PVX first insulating
  • a slit is formed between the electrode strips of 02, as shown in Fig. 4g;
  • a monochromatic quantum dot layer 01 is prepared on the black matrix 03 and the second insulating (PVX) layer 11, and the monochromatic quantum dot layer 01 is located above the pixel electrode 08 and the common electrode 02, as shown in FIG. 4j. Shown
  • a first protective layer 12 is formed on the black matrix 03 and the monochromatic quantum dot layer 01, as shown in Fig. 4k.
  • the thin film transistor composed of the gate electrode 05, the gate insulating layer 06, the active layer 07, and the source and drain electrodes 09 is a bottom gate type thin film transistor, but the present invention is not limited thereto, for example, in another embodiment. It is also possible to form a top gate type thin film transistor.
  • the common electrode 02 is located above the pixel electrode 08, and as described above, the common electrode 02 and the pixel electrode 08 may be in other arrangement manners in other embodiments, and the present invention is not limited thereto.
  • the monochromatic quantum dot layer 01 is not formed at the corresponding position to obtain a via structure.
  • the liquid crystal display panel on which the respective monochromatic quantum dot layers are disposed on the opposite substrate is taken as an example, and the manufacturing process of the opposite substrate, as shown in FIG. 5a to FIG. 5e, may include The following steps:
  • a region of the black matrix 03 (BM) is formed on the opposite substrate 1, and the black matrix 03 is exposed to the pixel region as shown in Fig. 5a;
  • a second protective layer 13 is formed on the monochromatic quantum dot layer 01 as shown in Fig. 5d.
  • a spacer (PS) layer 14 may also be formed on the second protective layer 13 as shown in Fig. 5e.
  • the absorbing layer 04 When the absorbing layer 04 is formed, it may be covered to include the black matrix 03.
  • each pixel unit includes a sub-pixel unit that emits blue light, and the absorption layer 04 is used to absorb blue light, the absorption layer 04 is not disposed at a position corresponding to the sub-pixel unit that emits blue light.
  • the pixel region exposed by the black matrix 03 corresponds to a sub-pixel unit on the array substrate used in combination with the counter substrate.
  • the monochromatic quantum dot layer 01 When it is not necessary to form the monochromatic quantum dot layer 01 for a certain sub-pixel unit, the monochromatic quantum dot layer 01 is not formed at the corresponding position to obtain a via structure.
  • the array substrate used in combination with the counter substrate in this embodiment can be in various available modes.
  • the quantum dot layer includes a polymer network and monochromatic quantum dots uniformly dispersed in the polymer network to solve the problem of quantum dot accumulation.
  • a polymer network is produced by a mixture of a phenolic resin derivative and a diazonaphthol derivative by photoinitiator polymerization by ultraviolet light irradiation.
  • a method for patterning a quantum dot layer includes the following steps:
  • the substrate may be a glass substrate, a quartz substrate or a plastic substrate.
  • Step S601 can be implemented in one embodiment by:
  • a monochromatic quantum dot shown as 1 in Fig. 7
  • a phenolic acid resin derivative a diazobenzene derivative
  • an organic solvent such as propylene glycol methyl ether acetate
  • a photoinitiator a monochromatic quantum dot, a furfural resin derivative, a diazonaphthol derivative, a propylene glycol oxime ether acetate, and a photoinitiator may be mixed and mechanically stirred for 1 hour, followed by ultrasonication.
  • the mass ratio of the monochromatic quantum dots is less than about 1%, the mass ratio of the phenolic resin derivative is about 15% to 30%, and the mass ratio of the organic solvent propylene glycol oxime ether acetate is about 50%. -70%, the mass ratio of photoinitiator is about 2%-10%.
  • the material of the monochromatic quantum dots can be selected from the group II-VI CdS, CdSe, CdTe, ZnO,
  • InP, InSb, AlAs, A1P, AlSb and other materials are examples.
  • the photoinitiator may include dibenzoyl peroxide, dodecanoyl peroxide, azobisisobutyronitrile, azobisisoheptanenitrile, diisopropyl peroxydicarbonate, and dicyclohexyl peroxydicarbonate.
  • dibenzoyl peroxide dodecanoyl peroxide
  • azobisisobutyronitrile azobisisoheptanenitrile
  • diisopropyl peroxydicarbonate dicyclohexyl peroxydicarbonate.
  • dicyclohexyl peroxydicarbonate dicyclohexyl peroxydicarbonate.
  • the molecular structural formula of a phenolic resin derivative can be as follows:
  • the molecular structural formula of the diazonaphthol derivative can be as follows:
  • the substrate irradiated with ultraviolet light is developed by using a developing solution of tetramethyl hydride (CH3) 4NOH and an aqueous solution, and the mixture which is not irradiated with ultraviolet light is washed off, as shown in Fig. 8d.
  • CH3 tetramethyl hydride
  • the quantum dot layer can be patterned on the substrate, and the monochromatic quantum dots are dispersed by the polymer network, which can prevent quantum dot accumulation and increase the quantum yield of the quantum dots.
  • the polymer network can isolate air from monochromatic quantum dots, avoiding the contact of monochromatic quantum dots with oxygen and increasing the lifetime of quantum dots.
  • the embodiment of the invention further provides a display device comprising the above liquid crystal display screen and other components such as a driver provided by the embodiment of the invention. Since the principle of solving the problem of the device is similar to that of the foregoing liquid crystal display, the implementation of the device can be referred to the implementation of the liquid crystal display, and the repeated description will not be repeated.
  • the liquid crystal display panel, the display device and the quantum dot layer patterning method provided by the embodiment of the invention may be provided with a plurality of pixel units in the liquid crystal display panel, and each pixel unit has a plurality of sub-pixel units displaying different colors.
  • the position corresponding to the sub-pixel unit of at least one color of each pixel unit may be provided with a monochromatic quantum dot layer, and each monochromatic quantum dot layer emits monochromatic light corresponding to the color of the sub-pixel unit after being excited by the background light.
  • the quantum dot layer is used instead of the existing color resin as a color filter to convert the background light into monochromatic light.
  • a polymer network is formed by irradiating a mixture of a phenolic resin derivative and a diazonaphthol derivative with ultraviolet light, so that monochromatic quantum dots are uniformly dispersed in the polymer network, and the quantum dot layer can be patterned. Prevent the accumulation of quantum dots and increase the quantum yield of quantum dots to improve quantum excitation efficiency.
  • the polymer network can isolate air from monochromatic quantum dots, avoiding the contact of monochromatic quantum dots with oxygen, increasing the lifetime of quantum dots.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Liquid Crystal (AREA)
  • Led Device Packages (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

一种液晶显示屏设置有多个像素单元，每个像素单元均具有多个显示不同颜色的亚像素单元，在各像素单元的至少一个颜色的亚像素单元对应的位置设置有单色量子点层（01）。该液晶显示屏具有提高的液晶显示屏的色域，增强的色彩饱和度，提高的显示品质，并且量子点的使用寿命增加了。还披露了一种显示装置和量子点层（01）图形化的方法。

Description

液晶显示屏、 显示装置及量子点层图形化的方法 技术领域
本发明的实施例涉及一种液晶显示屏、 显示装置及量子点层图形化的方 法。 背景技术
量子点 (Quantum Dots, QDs), 又可以称纳米晶， 是一种由 II - VI族或 III
- V族元素组成的纳米颗粒。 量子点的粒径一般介于 1 ~ 20nm之间， 由于电 子和空穴被量子限域， 连续的能带结构变成分立的能级结构， 受激后可以发 射荧光。
量子点的发射光谱可以通过改变量子点的尺寸大小来控制。 通过改变量 子点的尺寸和它的化学组成可以使其发射光语覆盖整个可见光区。以 CdTe量 子点为例， 当它的粒径从 2.5nm生长到 4.0nm时， 发射波长可以从 510nm红 移到 660nm。
目前， 利用量子点的发光特性可以将量子点作为分子探针应用于荧光标 记， 也可以应用于显示器件中。 当将单色量子点作为液晶显示屏的背光模组 的发光源时，单色量子点在受到蓝光 LED发出的蓝光的激发后发出单色光与 该蓝光混合形成白色光， 该白色光具有较大的色域， 能提高画面品质。但是， 现有技术中还没有将量子点应用于液晶显示屏内部的设计。 发明内容
本发明实施例提供了一种液晶显示屏、 显示装置及量子点层图形化的方 法， 用以提高显示屏的色域， 进而提高画面品质。
根据本发明的一个方面， 提供一种液晶显示屏， 其包括： 对置基板、 阵 列基板以及位于所述对置基板和所述阵列基板之间的液晶层， 所述液晶显示 屏内设置有多个像素单元， 每个所述像素单元具有多个显示不同颜色的亚像 素单元， 在各像素单元的至少一个颜色的亚像素单元对应的对置基板或阵列 基板位置， 设置有单色量子点层， 所述单色量子点层在受背景光激发后发出 对应所述亚像素单元颜色的单色光。
根据本发明的另一个方面， 提供一种显示装置， 其包括本发明的实施例 提供的液晶显示屏。
根据本发明的另一个方面， 提供一种量子点层图形化的方法， 其包括： 将包括单色量子点、 酚酸树脂衍生物、 重氮萘酚衍生物以及光引发剂的混合 物涂覆到基板上； 紫外光透过掩膜板的单元照射所述基板， 使所述酚醛树脂 衍生物和重氮萘酚衍生物在所述光引发剂的作用下聚合， 生成高分子聚合物 网络， 所述单色量子点均匀地^:于所述高分子聚合物网络内。 附图说明
下面将结合附图， 对根据本发明实施例提供的液晶显示屏、 显示装置及 量子点层图形化的方法的具体实施方式进行详细地说明， 其中：
图 la和图 lb分别为根据本发明实施例的液晶显示屏的结构示意图； 图 2为根据本发明实施例的液晶显示屏和现有的液晶显示屏的色域模拟 图；
图 3a-图 3d为根据本发明实施例的像素单元中各亚像素单元的排列示意 图；
图 4a-图 4k为根据本发明实施例的制备阵列基板的各步骤的示意图； 图 5a-图 5e为根据本发明实施例的制备对置基板各步骤的示意图； 图 6为根据本发明实施例的单色量子点层图形化的方法的流程示意图； 图 7为根据本发明实施例的量子点分散于高分子聚合物网络的示意图； 图 8a-图 8f为根据本发明实施例的量子点层图形化的方法的各步骤的示 意图。 具体实施方式
下面结合附图， 对本发明实施例提供的液晶显示屏、 显示装置及量子点 层图形化的方法的具体实施方式进行详细地说明， 以使本领域普通技术人员 更加清楚、 完整地理解本发明。
附图中各层薄膜厚度和区域形状只是用于示意性说明的目的， 并不反映 阵列基板或对置基板的真实比例。
除非另作定义， 此处使用的技术术语或者科学术语应当为本发明所属领 域内具有一般技能的人士所理解的通常意义。 本发明专利申请说明书以及权 利要求书中使用的 "第一"、 "第二" 以及类似的词语并不表示任何顺序、 数 量或者重要性， 而只是用来区分不同的组成部分。 同样， "一个"、 "一" 或者 "该" 等类似词语也不表示数量限制， 而是表示存在至少一个。 "包括" 或者 "包含" 等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后 面列举的元件或者物件及其等同， 而不排除其他元件或者物件。 "连接" 或者 "相连" 等类似的词语并非限定于物理的或者机械的连接， 而是可以包括电 性的连接， 不管是直接的还是间接的。 "上"、 "下"、 "左"、 "右" 等仅用于表 示相对位置关系， 当被描述对象的绝对位置改变后， 则该相对位置关系也可 能相应地改变。
根据本发明实施例提供的一种液晶显示屏， 如图 la和图 lb所示， 其包 括： 对置基板 1、 阵列基板 2以及位于对置基板 1和阵列基板 2之间的液晶层 3。阵列基板 2上设置有多个像素单元，即液晶显示屏内设置有多个像素单元， 这些像素单元排列为阵列。 每个像素单元具有多个显示不同颜色的亚像素单 元（每个亚像素单元如图中虚线框所示）。
在该液晶显示屏中， 在各像素单元的至少一个颜色的亚像素单元对应的 对置基板或阵列基板的位置， 分别设置有单色量子点层 01 , 该单色量子点层 01在受背景光激发后发出对应该亚像素单元颜色的单色光。
所述单色量子点层包括高分子聚合物网络以及均勾分散于所述高分子聚 合物网络内的单色量子点， 例如由高分子聚合物网络以及均匀分散于所述高 分子聚合物网络内的单色量子点组成。 所述高分子聚合物网络是由酚酸树脂 衍生物和重氮萘酚衍生物的混合物在光引发剂的作用下， 通过紫外光照射聚 合生成的。
本发明实施例提供的液晶显示屏中， 采用单色量子点层代替现有的彩色 树脂作为彩色滤光片将背景光转化成单色光； 通过亚像素单元的像素电极和 公共电极之间产生的电场控制液晶层中的液晶分子偏转， 调节通过亚像素单 元的光强（灰度）， 实现彩色液晶显示。 由于量子点发射光语窄并且发光效率 高， 可以将背景光高效地转化为单色光。 本发明的实施例中， 参考图 2所示 的色域模拟图， 由于各单色量子点层发出不同颜色的单色光， 诸如红光、 黄 光、 绿光、 青光和蓝光的组合， 组成的色域曲线可以达到色域边界（图中虚 线所示）， 相对于由传统的红绿蓝三原色组成的色域曲线（如图 2 中实线所 示）， 由于本发明的实施例增加了其他的纯颜色， 如上所述的黄色， 能够增加 色域的边界范围。另外只要将 QD调整到一定尺寸，就能发出黄光。 由于 QD 发射的光半峰宽较窄， 能够得到较纯的光。 所以， 本发明中具有四个角的色 域的面积就更大了， 即， QD发光显示能够获得更大的色域。 通过上述方式， 本发明可以提高液晶显示屏的色域， 增强色彩饱和度， 提高了显示屏的显示 口口 臾
采用紫外光照射酚酸树脂衍生物和重氮萘酚衍生物混合物的方式生成高 分子聚合物网络， 可使单色量子点均匀分散于高分子聚合物网络中， 可以图 形化量子点层， 防止量子点的堆积， 增加量子点的量子产率， 以提高量子激 发光效。 另外， 高分子聚合物网络可以隔绝空气与单色量子点， 避免单色量 子点与氧气接触， 增加了量子点的使用寿命。
例如， 本发明实施例提供的上述液晶显示屏可以适用于各种模式， 例如 可以适用于能够实现宽视角的平面内开关（IPS, In-Plane Switch )和高级超维 场开关（ADS, Advanced Super Dimension Switch )型液晶显示屏， 也可以适 用于传统的扭曲向列 （TN, Twisted Nematic )型液晶显示屏等。 这些模式的 液晶显示屏只是一些示例， 本发明不限于这些适用模式。
本发明实施例提供的下述液晶显示屏都是以 ADS型液晶显示屏为例进行 说明。
根据一个实施例， 在各亚像素单元内设置单色量子点层 01 , 例如可以将 单色量子点层 01设置在阵列基板 2面向液晶层 3的一侧。 例如， 图 la所示 的阵列基板 2具有公共电极 02, 单色量子点层 01设置在公共电极 02上侧。 该公共电极 02可以如图 la所示位于阵列基板 2的像素电极 08之上， 在另一 个实施例中也可以位于像素电极之下， 又或者在再一个实施例中将公共电极 02与像素电极同层设置；可以将单色量子点层 01设置在阵列基板 2的公共电 极 02和像素电极 08之上， 且单色量子点层 01与公共电极 02和像素电极 08 绝缘。 当然， 根据本发明的实施例， 根据制备工艺的需要， 也可以将各单色 量子点层 01设置在阵列基板 2背离液晶层 3的一侧 （如图 la中阵列基板 2 的下侧 ), 或者将各单色量子点层 01设置在阵列基板 2中的其他膜层之间， 本发明不限于此。 来自阵列基板 2下侧的背景光先照射到位于亚像素单元的 各单色量子点层 01 ,各单色量子点层 01中的量子点受到背景光激发生成对应 的单色光， 然后各单色光受到公共电极 02与像素电极 08之间产生的电场控 制的液晶层的调节， 各单色光的光强发生变化， 实现彩色液晶显示。
并且， 在各单色量子点层 01设置在阵列基板 2上时， 可以将黑矩阵 03 与各单色量子点层 01同层设置， 如图 la所示， 即可以将黑矩阵 03和单色量 子点层 01都设置在阵列基板 2上； 当然，也可将黑矩阵 03设置在对置基板 1 面向液晶层 3的一侧， 本发明不限于此。
根据一个实施例， 在各亚像素单元内设置单色量子点层 01 , 例如， 可以 将单色量子点层 01设置在对置基板 1面向液晶层 3的一侧， 如图 lb所示。 来自阵列基板 2下侧的背景光先受到公共电极 02与像素电极 08之间产生的 电场控制的液晶层的调节， 背景光的光强发生变化， 然后照射到位于亚像素 单元的各单色量子点层 01 ,各单色量子点层 01中的量子点受到背景光激发生 成对应的单色光， 实现彩色液晶显示。
本发明实施例提供的液晶显示屏中，在位于阵列基板背离液晶层一侧（如 图 la、 lb中阵列基板 2的下侧）还具有背光模组。 例如， 该背光模组发射的 背景光为蓝光， 蓝光的中心波长为约 450nm为佳， 以便各单色量子点层中的 单色量子点被激发后发出对应的单色光。 当然， 根据实际选用的量子点的激 发波长， 例如也可以选用近紫外光作为激发量子点的背景光， 本发明不限于 此。 该背光模组例如为侧面照射式背光模组或直下式背光模组， 所采用的光 源例如为发光二极管 （LED )等。
在选用蓝光作为背景光激发各单色量子点层时， 为了避免被各单色量子 点层吸收后还有蓝色的背景光透过亚像素单元， 造成从亚像素单元出射的单 色光不纯， 可以在对应各设置有单色量子点层 01的亚像素单元的位置， 在单 色量子点层 01之上，设置具有吸收蓝光的吸收层 04,相应地在发射蓝光的亚 像素单元的位置不设置吸收层 04。 例如， 如图 la和图 lb所示， 可以将吸收 层 04设置在对置基板 1面向液晶层 3的一侧。 另外， 设置的吸收层 04还可 以遮挡从对置基板 1背离液晶层 3—侧照射进入液晶显示屏的外部蓝光， 避 免外部蓝光激发单色量子点层中的量子点 , 使亚像素单元出射的单色光的光 强不可控而影响液晶显示品质。
根据本发明的一个实施例， 例如吸收层 04的材料可以采用 5-(1-甲基 -2- 吡咯次甲基)若丹宁或其衍生物。
例如， 如图 la和图 lb所示， 在选用蓝光作为背景光激发各单色量子点 层 01时， 还可以直接利用蓝光作为组成像素单元的原色之一， 即若每个像素 单元均具有显示 N个不同颜色的亚像素单元， 其中 N-1个颜色的亚像素单元 分别设置有单色量子点层， 1个亚像素单元不设置单色量子点层（从而表现为 过孔）， 作为背景光的蓝光直接通过该亚像素单元， 射出经过液晶层调制光强 的蓝光， N为大于等于 2的正整数。 例如， 当 N等于 2时， 组成一个像素单 元的两个亚像素单元的显示颜色互为补色， 如可以分别为橙色和蓝色。
根据本发明的实施例， 可以由 4色、 5色或 6色组成一个像素单元， 但本 发明不限于此。 例如： 在由蓝、 红、 绿和黄 4种颜色组成一个像素单元时， 一个像素单元有 4个亚像素单元， 这 4个亚像素单元可以如图 3a所示排列组 合， 也可以如图 3b所示排列组合， 但是本发明不限于此。 在图 3a、 3b的构 造中， 一个亚像素单元处没有设置单色量子点层， 背景蓝光直接通过， 即为 过孔结构， 另外 3个亚像素单元处分别设置有发红光的单色量子点层、 发绿 光的单色量子点层以及发黄光的单色量子点层。 又如： 在由蓝、 红、 绿、 黄 和橙 5种颜色组成一个像素单元时， 一个像素单元有 5个亚像素单元， 这 5 个亚像素单元可以如图 3c所示排列组合， 其中一个亚像素单元处没有设置单 色量子点层， 即为过孔结构， 背景蓝光直接通过， 另外 4个亚像素单元处分 别设置有发红光的单色量子点层、 发绿光的单色量子点层、 发黄光的单色量 子点层以及发橙光的单色量子点层。 再例如： 在由蓝、 红、 绿、 黄、 橙和青 5 种颜色组成一个像素单元时， 一个像素单元有 6个亚像素单元， 这 6个亚像 素单元可以如图 3d所示排列组合， 其中一个亚像素单元处没有设置单色量子 点层， 即为过孔结构， 背景蓝光直接通过， 另外 5个亚像素单元处分别设置 有发红光的单色量子点层、 发绿光的单色量子点层、 发黄光的单色量子点层、 发橙光的单色量子点层以及发青光的单色量子点层。 每个像素单元中的亚像 素单元的排列不限于如图 3a-3d所示排列方式，例如上下两行中亚像素单元可 以彼此错开排列。
可以选用在受背景光激发后发出红光、 绿光、 黄光、 橙光或青光等的单 色量子点层，通过控制量子点的粒径来控制量子点的发光波段。例如， 以 ZnS 量子点为例， 发射红光的量子点尺寸主要为约 9 ~ 10nm, 发射黄光量子点尺 寸为约 8 nm, 发射绿光的量子点尺寸为约 7nm。
需要说明的是， 本发明实施例所述的单色量子点层是指在同种颜色的亚 像素单元对应的阵列基板或对置基板的位置设置的量子点是相同的； 不同颜 色的亚像素单元对应的阵列基板或对置基板的位置设置的量子点是不同的。 此处不同可以是量子点尺寸或者材料等的不同， 只要保证对应各个颜色的亚 像素单元处的量子点受激发后仅发出对应该亚像素单元颜色的单色光即可。 也就是说， 所述单色量子点层各个区域的量子点受激发后都仅能发出单色光， 但对应不同颜色的亚像素单元的区域其发出的单色光是不同的。
根据一个实施例， 以上述各单色量子点层设置在阵列基板之上的液晶显 示屏为例， 所述阵列基板的制作工艺， 如图 4a-图 4k所示， 可以包括以下几 个步骤：
( I )在阵列基板 2之上形成栅极 05, 如图 4a所示；
( 2 )在栅极 05上形成栅绝缘层 06, 如图 4b所示；
( 3 )在栅绝缘层 06上形成有源层 07, 如图 4c所示；
( 4 )在有源层 07和栅绝缘层 06上形成一层像素电极 08, 该像素电极 08为板状电极， 如图 4d所示； 的源极和漏极 ), 如图 4e所示；
( 6 )在源漏极 09和像素电极 08之上沉积第一绝缘（ PVX )层 10, 如图 4f所示；
( 7 )在第一绝缘（ PVX )层 10之上形成条状公共电极 02, 该公共电极
02的电极条之间形成狭缝， 如图 4g所示；
( 8 )在公共电极 02上形成第二绝缘（ PVX )层 11 , 如图 4h所示； ( 9 )在第二绝缘（ PVX )层 11上形成黑矩阵 03, 该黑矩阵 03例如覆盖 形成的薄膜晶体管、 栅线和数据线， 如图 4i所示；
( 10 )在黑矩阵 03和第二绝缘（ PVX )层 11上制备单色量子点层 01 , 该单色量子点层 01相对于像素电极 08、 公共电极 02, 位于它们的上方， 如 图 4j所示；
( II )在黑矩阵 03和单色量子点层 01上形成第一保护层 12, 如图 4k所 示。
在上述实施例中， 有栅极 05、 栅绝缘层 06、 有源层 07以及源漏极 09构 成的薄膜晶体管为底栅型薄膜晶体管， 但是本发明不限于此， 例如在另一个 实施例中还可以形成顶栅型薄膜晶体管。 而且， 在上述实施例中， 公共电极 02位于像素电极 08之上， 如上所述在其他实施例中公共电极 02和像素电极 08还可以以其他设置方式， 本发明不限于此。 当对于某个亚像素单元不需要 形成单色量子点层 01时， 则在相应位置不形成单色量子点层 01而得到过孔 结构。 对应地， 根据一个实施例， 以上述各单色量子点层设置在对置基板之上 的液晶显示屏为例， 所述对置基板的制作工艺， 如图 5a-图 5e所示， 可以包 括以下几个步骤：
( 1 )在对置基板 1上形成黑矩阵 03 ( BM )的区域， 黑矩阵 03露出像素 区域， 如图 5a所示；
( 2 )形成吸收层 04, 该吸收层 04覆盖黑矩阵 03露出的像素区域， 如图 5b所示；
( 3 )在吸收层 04上制备单色量子点层 01 , 如图 5c所示；
( 4 )在单色量子点层 01上形成第二保护层 13, 如图 5d所示。
根据需要， 还可以在第二保护层 13上形成隔垫物（PS )层 14, 如图 5e 所示。 形成吸收层 04时， 也可以使其覆盖包括黑矩阵 03。 例如， 如果每个像 素单元包括发蓝光的亚像素单元， 且吸收层 04用于吸收蓝光时， 则对应于该 发蓝光的亚像素单元的位置不设置该吸收层 04。 黑矩阵 03露出的像素区域， 对应于与该对置基板组合使用的阵列基板上的亚像素单元。 当对于某个亚像 素单元不需要形成单色量子点层 01 时， 在相应位置不形成单色量子点层 01 而得到过孔结构。 与本实施例中的对置基板组合使用的阵列基板可以为各种 可用模式。
在上述制备工艺中制备单色量子点层时， 为了避免由于单色量子点堆积 会产生的淬灭现象， 导致量子产率降低的问题， 本发明实施例提供的液晶显 示屏中的各单色量子点层包括高分子聚合物网络以及均匀分散于高分子聚合 物网络内的单色量子点， 以解决量子点堆积的问题。 例如， 高分子聚合物网 络是由酚酸树脂衍生物和重氮萘酚衍生物的混合物在光引发剂的作用下， 通 过紫外光照射聚合生成的。
根据本发明的一个实施例提供一种量子点层图形化的方法， 如图 6所示， 其包括以下几个步骤：
S601、 将包括单色量子点、 酚酸树脂衍生物、 重氮萘酚衍生物以及光引 发剂的混合物涂覆到基板上； 该基板可以为玻璃基板、 石英基板或塑料基板 等。
步骤 S601在一个实施例中可以通过如下方式实现：
( 1 )将单色量子点 （图 7中 1所示）、 酚酸树脂衍生物、 重氮茶酚衍生 物、 诸如丙二醇甲醚醋酸酯的有机溶剂以及光引发剂进行混合， 得到混合溶 液。 例如， 可以将单色量子点、 朌醛树脂衍生物、 重氮萘酚衍生物、 丙二醇 曱醚醋酸酯以及光引发剂进行混合， 机械搅拌 1小时， 之后进行超声波
后如图 7中 2所示；
( 2 )将混合溶液旋涂到基板上， 如图 8a所示；
( 3 )例如采用抽真空方式， 去除混合溶液中的有机溶剂丙二醇曱醚醋酸 酯（如图 7中 3所示）， 得到涂敷在基板上的包括单色量子点、 酚醛树脂衍生 物、 重氮萘朌衍生物以及光引发剂的混合物， 如图 8b所示。
在一个实施例中， 单色量子点所占质量比小于约 1%， 酚醛树脂衍生物所 占质量比在约 15%-30% , 有机溶剂丙二醇曱醚醋酸酯所占质量比在约 50%-70%, 光引发剂所占质量比在约 2%-10%。
例如， 单色量子点的材料可以选用 II- VI族的 CdS、 CdSe、 CdTe、 ZnO、
ZnSe、 ZnTe和 III-V族 GaAs、 GaP、 GaAs、 GaSb、 HgS、 HgSe、 HgTe、 InAs、
InP、 InSb、 AlAs、 A1P、 AlSb等材料。
例如， 光引发剂可以包括过氧化二苯曱酰、 过氧化十二酰、 偶氮二异丁 腈、 偶氮二异庚腈、 过氧化二碳酸二异丙酯和过氧化二碳酸二环己酯中之一 或它们 4ί意的组合。
例如， 酚酪树脂衍生物的分子结构式可如下所示：
Figure imgf000010_0001
η= 10-300 其中， a=l-100， b=l-100, c=l-30, n=10-300。
例如， 重氮萘酚衍生物的分子结构式可如下所示:
替换页 （细则第 26条
Figure imgf000011_0001
其中， R=-CnH2n+l , n=l-10。
S602、 使预定区域中的酚醛树脂衍生物和重氮萘酚衍生物在光引发剂的 作用下聚合， 生成高分子聚合物网络， 量子点均匀分散于高分子聚合物网絡 内（如图 7中 4所示）。例如， 紫外光透过掩膜板 20的透光区域 21照射基板， 使预定区域中的酚醛树脂衍生物和重氮萘酚衍生物在光引发剂的作用下聚 合， 如图 8c所示。
这里， 酚醛树脂衍生物和重氮萘酚衍生物中的环氧树脂发生聚合的过程 如下：
Figure imgf000011_0002
进一步地， 在生成高分子聚合物网络之后， 还可包括以下步骤：
S603、 采用显影液氢氧化四曱基氛 ( CH3 ) 4NOH )和水溶液对经过紫外 光照射的基板进行显影， 洗掉未经紫外光照射处的混合物， 如图 8d所示。
例如， 显影的化学过程如下：
Figure imgf000011_0003
替换页 （细则第 26条) 在通过上述步骤 S601~S603亚像素单元制备出单色量子点层的图形后， 可以重复步骤 S601~S603, 如图 8e和图 8f所示， 在其他亚像素单元制备出单 色量子点层， 具体过程在此不做详述。
通过本发明实施例提供的上述量子点层的制备工艺， 可以在基板上图形 化量子点层， 采用高分子聚合物网络分散单色量子点， 能防止量子点堆积， 增加量子点的量子产率， 以提高量子激发光效。 并且， 高分子聚合物网络可 以将空气与单色量子点隔绝， 避免单色量子点与氧气接触， 增加量子点的使 用寿命。
本发明实施例还提供了一种显示装置， 其包括本发明实施例提供的上述 液晶显示屏以及其他例如驱动器等部件。 由于该装置解决问题的原理与前述 液晶显示屏相似， 因此该装置的实施可以参见液晶显示屏的实施， 重复之处 不再赘述。
本发明实施例提供的液晶显示屏、 显示装置及量子点层图形化的方法， 液晶显示屏内可以设置有多个像素单元， 每个像素单元均具有多个显示不同 颜色的亚像素单元， 在各像素单元的至少一个颜色的亚像素单元对应的位置 可以设置有单色量子点层， 各单色量子点层在受背景光激发后发出对应该亚 像素单元颜色的单色光。 本发明实施例采用量子点层代替现有的彩色树脂作 为彩色滤光片将背景光转化成单色光， 由于量子点发射光谱窄并且发光效率 高， 可以将背景光高效地转化为单色光， 能扩展液晶显示屏的色域， 增强了 色彩饱和度， 提高了显示屏的显示品质。 并且， 采用紫外光照射酚酸树脂衍 生物和重氮萘酚衍生物混合物的方式生成高分子聚合物网络， 使单色量子点 均匀分散于高分子聚合物网络中， 图形化量子点层， 可以防止量子点的堆积， 增加量子点的量子产率， 以提高量子激发光效。 另外， 高分子聚合物网络可 以将空气与单色量子点隔绝， 避免单色量子点与氧气接触， 增加了量子点的 使用寿命。 发明的精神和范围。 本发明也意图包含属于本发明权利要求范围之内的这些 修改和变形及其任何等同物。

Claims

权利要求书
1、 一种液晶显示屏， 包括： 对置基板、 阵列基板以及位于所述对置基板 和所述阵列基板之间的液晶层， 所述液晶显示屏上设置有多个像素单元， 每 个所述像素单元具有多个显示不同颜色的亚像素单元， 其中，
在各像素单元的至少一个颜色的亚像素单元对应的对置基板或者阵列基 板的位置， 设置有单色量子点层， 所述单色量子点层在受背景光激发后发出 对应所述亚像素单元颜色的单色光。
2、 如权利要求 1所述的液晶显示屏， 其中所述单色量子点层包括高分子 聚合物网络以及均匀分散于所述高分子聚合物网络内的单色量子点； 所述高 分子聚合物网络是由酚酸树脂衍生物和重氮萘酚衍生物的混合物在光引发剂 的作用下， 通过紫外光照射聚合生成的。
3、 如权利要求 1-2任一项所述的液晶显示屏， 其中， 所述单色量子点层 位于所述阵列基板面向所述液晶层的一侧， 或位于所述对置基板面向所述液 晶层的一侧。
4、 如权利要求 3所述的液晶显示屏， 其中， 所述阵列基板面向所述液晶 层的一侧还具有公共电极和像素电极， 所述单色量子点层位于所述阵列基板 的像素电极和公共电极之上， 且所述单色量子点层与所述公共电极和像素电 极绝缘。
5、 如权利要求 1-4任一项所述的液晶显示屏， 还包括： 位于所述阵列基 板背离所述液晶层一侧的发射背景光为蓝光的背光模组。
6、 如权利要求 1-5任一项所述的液晶显示屏， 其中， 每个所述像素单元 均具有显示 N个不同颜色的亚像素单元， 其中 N-1个颜色的亚像素单元分别 设置有所述单色量子点层， N为大于等于 2的正整数。
7、 如权利要求 1-6任一项所述的液晶显示屏， 其中， 在所述单色量子点 层之上， 对应各设置有单色量子点层的亚像素单元的位置， 还设置有吸收蓝 光的吸收层。
8、 如权利要求 7所述的液晶显示屏， 其中， 所述吸收层的材料为 5-(1- 甲基 -2-吡咯次甲基)若丹宁或其衍生物。
9、 如权利要求 1-8任一项所述的液晶显示屏， 其中， 所述单色量子点层 在受背景光激发后发出红光、 绿光、 黄光、 橙光或青光。
10、如权利要求 1-9任一项所述的液晶显示屏， 其中， 所述单色量子点的 材料为 CdS、 CdSe、 CdTe、 ZnO、 ZnSe、 ZnTe、 GaAs、 GaP、 GaAs、 GaSb、 HgS、 HgSe、 HgTe、 InAs、 InP、 InSb、 AlAs、 A1P或 AlSb。
11、 如权利要求 2-10任一项所述的液晶显示屏， 其中， 所述光引发剂包 括过氧化二苯甲酰、 过氧化十二酰、 偶氮二异丁腈、 偶氮二异庚腈、 过氧化 二碳酸二异丙酯和过氧化二碳酸二环己酯中之一或组合。
12、 一种显示装置， 包括如权利要求 1~11中任一项所述的液晶显示屏。
13、 一种量子点层图形化的方法， 包括：
将包括单色量子点、 酚酸树脂衍生物、 重氮萘酚衍生物以及光引发剂的 混合物涂覆到基板上；
使设定区域中的所述酚酸树脂衍生物和重氮萘酚衍生物在所述光引发剂 的作用下聚合， 生成高分子聚合物网络， 所述单色量子点均匀地分散于所述 高分子聚合物网络内。
14、 如权利要求 13所述的方法， 其中， 所述将包括量子点、 酚酸树脂衍 生物、 重氮茶酚衍生物以及光引发剂的混合物涂覆到基板上， 包括：
将单色量子点、 酚酸树脂衍生物、 重氮萘酚衍生物、 有机溶剂以及光引 发剂进行混合， 得到混合溶液；
将所述混合溶液旋涂到所述基板上；
采用抽真空方式， 去除所述混合溶液中的有机溶剂， 得到涂覆在基板上 的包括单色量子点、 酚酸树脂衍生物、 重氮萘酚衍生物以及光引发剂的混合 物。
15、如权利要求 13-14任一项所述的方法， 其中， 所述有机溶剂为丙二醇 甲醚醋酸酯。
16、如权利要求 13-15任一项所述的方法， 其中， 所述单色量子点所占质 量比小于约 1%,酚酸树脂衍生物所占质量比在约 15%-30%, 丙二醇甲醚醋酸 酯所占质量比在约 50%-70%, 光引发剂所占质量比在约 2%-10%。
17、如权利要求 13-16任一项所述的方法， 其中， 所述单色量子点的材料 为 CdS、 CdSe、 CdTe、 ZnO、 ZnSe、 ZnTe、 GaAs、 GaP、 GaAs、 GaSb、 HgS、 HgSe、 HgTe、 InAs、 InP、 InSb、 AlAs、 A1P或 AlSb。
18、根据权利要求 13-17任一项所述的方法， 其中， 所述光引发剂包括过 氧化二苯甲酰、 过氧化十二酰、 偶氮二异丁腈、 偶氮二异庚腈、 过氧化二碳 酸二异丙酯和过氧化二碳酸二环己酯中之一或其组合。
19、 根据权利要求 13-18任一项所述的方法， 还包括： 在所述生成高分子 聚合物网络之后， 采用氢氧化四甲基氨和水溶液对经过紫外光照射的基板进 行显影。
20、 根据权利要求 13-19任一项所述的方法， 其中， 将紫外光透过掩膜板 的透光区域照射所述基板， 以使设定区域中的所述酚酸树脂衍生物和重氮茶 酚衍生物在所述光引发剂的作用下聚合。
PCT/CN2013/080065 2013-04-09 2013-07-25 液晶显示屏、显示装置及量子点层图形化的方法 Ceased WO2014166179A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/355,112 US9575358B2 (en) 2013-04-09 2013-07-25 Liquid crystal display panel, display device and process for patterning quantum dot layer
US15/352,022 US9690135B2 (en) 2013-04-09 2016-11-15 Liquid crystal display panel, display device and process for patterning quantum dot layer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310121557.6 2013-04-09
CN201310121557.6A CN103226260B (zh) 2013-04-09 2013-04-09 液晶显示屏、显示装置及量子点层图形化的方法

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US14/355,112 A-371-Of-International US9575358B2 (en) 2013-04-09 2013-07-25 Liquid crystal display panel, display device and process for patterning quantum dot layer
US15/352,022 Division US9690135B2 (en) 2013-04-09 2016-11-15 Liquid crystal display panel, display device and process for patterning quantum dot layer

Publications (1)

Publication Number Publication Date
WO2014166179A1 true WO2014166179A1 (zh) 2014-10-16

Family

ID=48836761

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/080065 Ceased WO2014166179A1 (zh) 2013-04-09 2013-07-25 液晶显示屏、显示装置及量子点层图形化的方法

Country Status (3)

Country Link
US (2) US9575358B2 (zh)
CN (1) CN103226260B (zh)
WO (1) WO2014166179A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017096710A1 (zh) * 2015-12-08 2017-06-15 深圳市华星光电技术有限公司 量子点彩膜基板的制作方法
US20180108842A1 (en) * 2016-01-13 2018-04-19 Boe Technology Group Co., Ltd. Crosslinkable Quantum Dot And Preparing Method Thereof, Array Substrate And Preparing Method Thereof

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278876A (zh) * 2013-05-28 2013-09-04 京东方科技集团股份有限公司 量子点彩色滤光片及其制作方法、显示装置
CN103346266B (zh) * 2013-06-21 2016-03-30 深圳市华星光电技术有限公司 一种发光器件、显示面板及其制造方法
CN103730472B (zh) * 2013-12-25 2015-05-06 京东方科技集团股份有限公司 阵列基板及其制作方法、显示装置
CN103788270B (zh) * 2014-01-29 2016-04-20 京东方科技集团股份有限公司 一种白光量子点复合颗粒及其制备方法、制备装置
CN103943032B (zh) * 2014-04-01 2016-03-02 京东方科技集团股份有限公司 一种阵列基板及显示装置
US10901125B2 (en) 2014-05-23 2021-01-26 Eyesafe, Llc Light emission reducing compounds for electronic devices
US10642087B2 (en) 2014-05-23 2020-05-05 Eyesafe, Llc Light emission reducing compounds for electronic devices
CN104090361B (zh) * 2014-06-24 2017-02-15 京东方科技集团股份有限公司 有源基板及显示装置
KR101983426B1 (ko) * 2015-01-23 2019-09-11 삼성디스플레이 주식회사 감광성 수지 조성물 및 표시장치
CN104793397B (zh) * 2015-03-16 2018-11-02 厦门天马微电子有限公司 液晶显示模组及液晶显示装置
KR102028439B1 (ko) * 2015-03-19 2019-10-04 동우 화인켐 주식회사 자발광 감광성 수지 조성물, 이를 포함하는 컬러필터 및 화상표시장치
CN104880856B (zh) * 2015-06-24 2018-04-27 京东方科技集团股份有限公司 一种彩色光阻剂及其应用、彩膜基板、液晶显示器
CN105116595A (zh) * 2015-08-13 2015-12-02 深圳市华星光电技术有限公司 显示面板
CN105185790B (zh) * 2015-09-24 2019-03-12 深圳市华星光电技术有限公司 阵列基板及其制作方法
CN105182610A (zh) * 2015-10-19 2015-12-23 京东方科技集团股份有限公司 一种显示基板及其制作方法、显示装置
CN105301827B (zh) * 2015-11-13 2019-02-01 深圳市华星光电技术有限公司 量子点彩膜基板的制备方法及量子点彩膜基板
CN105319765B (zh) * 2015-11-16 2018-08-14 深圳市华星光电技术有限公司 量子点显示面板的制作方法
CN105404047B (zh) * 2015-12-04 2018-05-01 深圳市华星光电技术有限公司 Coa型液晶显示面板的制作方法及coa型液晶显示面板
CN105449111B (zh) * 2016-01-08 2018-03-20 京东方科技集团股份有限公司 具有结合层的量子点发光二极管基板及其制备方法
KR102654711B1 (ko) * 2016-12-05 2024-04-05 삼성디스플레이 주식회사 표시 장치 및 이의 구동 방법
CN106876562B (zh) * 2017-03-30 2020-03-24 广东普加福光电科技有限公司 一种新型微缩化led结构及其制备方法
CN106773328A (zh) * 2017-03-31 2017-05-31 深圳市华星光电技术有限公司 液晶显示装置
CN106990464B (zh) * 2017-05-26 2020-01-14 青岛海信电器股份有限公司 量子点彩色滤光片及制备方法、液晶面板、液晶显示设备
CN107092048A (zh) * 2017-06-13 2017-08-25 深圳市华星光电技术有限公司 蓝光吸收截止膜及蓝光显示装置
US20180356574A1 (en) * 2017-06-13 2018-12-13 Shenzhen China Star Optoelectronics Technology Co. Ltd. Blue light absorption cut-off film and blue light display device
CN107175815B (zh) 2017-07-13 2020-05-19 上海天马微电子有限公司 一种透射式液晶面板与3d打印装置
CN107357080A (zh) * 2017-08-30 2017-11-17 京东方科技集团股份有限公司 彩膜片及其制作方法和彩膜基板
KR102027186B1 (ko) * 2017-09-11 2019-10-01 서울대학교산학협력단 광변조 양자점 컬러 디스플레이 및 이의 제조방법
US12619111B2 (en) 2018-11-28 2026-05-05 Eyesafe Inc. Color filter enhancements for display devices
US11592701B2 (en) 2018-11-28 2023-02-28 Eyesafe Inc. Backlight unit with emission modification
US11126033B2 (en) 2018-11-28 2021-09-21 Eyesafe Inc. Backlight unit with emission modification
US12321060B1 (en) 2018-11-28 2025-06-03 Eyesafe Inc. Color filter enhancements for display devices
US10955697B2 (en) 2018-11-28 2021-03-23 Eyesafe Inc. Light emission modification
US11810532B2 (en) 2018-11-28 2023-11-07 Eyesafe Inc. Systems for monitoring and regulating harmful blue light exposure from digital devices
CN109343267B (zh) * 2018-11-30 2021-02-26 武汉华星光电技术有限公司 量子点彩膜基板及其制备方法
US10971660B2 (en) 2019-08-09 2021-04-06 Eyesafe Inc. White LED light source and method of making same
CN113064324B (zh) * 2020-01-02 2023-04-07 京东方科技集团股份有限公司 硅量子点光刻胶、彩膜层、oled显示结构及显示器
CN112310143A (zh) * 2020-11-02 2021-02-02 广东省科学院半导体研究所 量子点微led显示器件及其制备方法
CN112599692A (zh) * 2021-01-06 2021-04-02 福州大学 基于光刻工艺的纳米级像素化量子点发光器件及其制备方法
CN115020626A (zh) * 2022-05-25 2022-09-06 南方科技大学 量子点像素化薄膜制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050146258A1 (en) * 1999-06-02 2005-07-07 Shimon Weiss Electronic displays using optically pumped luminescent semiconductor nanocrystals
CN100504543C (zh) * 2007-03-06 2009-06-24 孙润光 显示装置以及含有该显示装置的手机、计算机和电视机
US20110281388A1 (en) * 2008-11-13 2011-11-17 Hcf Partners, Lp Cross-Linked Quantum Dots and Methods for Producing and Using the Same
CN102866535A (zh) * 2011-07-05 2013-01-09 乐金显示有限公司 包括光转换层的液晶显示面板以及液晶显示器件
CN102944943A (zh) * 2012-11-09 2013-02-27 京东方科技集团股份有限公司 量子点彩色滤光片、液晶面板及显示装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW575775B (en) * 2001-01-29 2004-02-11 Hitachi Ltd Liquid crystal display device
KR101893494B1 (ko) * 2011-07-18 2018-08-30 엘지이노텍 주식회사 광학 부재 및 이를 포함하는 표시장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050146258A1 (en) * 1999-06-02 2005-07-07 Shimon Weiss Electronic displays using optically pumped luminescent semiconductor nanocrystals
CN100504543C (zh) * 2007-03-06 2009-06-24 孙润光 显示装置以及含有该显示装置的手机、计算机和电视机
US20110281388A1 (en) * 2008-11-13 2011-11-17 Hcf Partners, Lp Cross-Linked Quantum Dots and Methods for Producing and Using the Same
CN102866535A (zh) * 2011-07-05 2013-01-09 乐金显示有限公司 包括光转换层的液晶显示面板以及液晶显示器件
CN102944943A (zh) * 2012-11-09 2013-02-27 京东方科技集团股份有限公司 量子点彩色滤光片、液晶面板及显示装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017096710A1 (zh) * 2015-12-08 2017-06-15 深圳市华星光电技术有限公司 量子点彩膜基板的制作方法
US20180108842A1 (en) * 2016-01-13 2018-04-19 Boe Technology Group Co., Ltd. Crosslinkable Quantum Dot And Preparing Method Thereof, Array Substrate And Preparing Method Thereof
US10224483B2 (en) * 2016-01-13 2019-03-05 Boe Technology Group Co., Ltd. Crosslinkable quantum dot and preparing method thereof, array substrate and preparing method thereof

Also Published As

Publication number Publication date
CN103226260B (zh) 2015-12-09
US9690135B2 (en) 2017-06-27
US9575358B2 (en) 2017-02-21
US20170059902A1 (en) 2017-03-02
US20150212352A1 (en) 2015-07-30
CN103226260A (zh) 2013-07-31

Similar Documents

Publication Publication Date Title
US9323115B2 (en) Method for preparing liquid crystal display panel, display device and monochromatic quantum dot layer
US9690135B2 (en) Liquid crystal display panel, display device and process for patterning quantum dot layer
JP6220064B2 (ja) 液晶ディスプレイ及び表示装置
KR101793741B1 (ko) 표시장치
CN105990396B (zh) 显示面板
KR102390960B1 (ko) 표시 장치
US20170261849A1 (en) Method for manufacturing color filter substrate
JP2000267091A (ja) 液晶表示装置
WO2014190604A1 (zh) 量子点彩色滤光片及其制作方法、显示装置
WO2014166149A1 (zh) 量子点电致发光显示器件及显示装置
US20160341874A1 (en) Backlight module and liquid crystal display including same
WO2017045236A1 (zh) 液晶显示装置
WO2018227678A1 (zh) 蓝光吸收截止膜及蓝光显示装置
KR20150033927A (ko) 편광시트 및 이의 제조 방법과 상기 편광시트를 포함하는 액정표시장치
CN103309087A (zh) 一种阵列基板、液晶显示面板和显示装置
CN111290160B (zh) 一种显示结构和显示装置
US20200348562A1 (en) Color filter substrate and manufacturing method thereof, and display panel
JP2016042449A (ja) 表示装置
CN105911748A (zh) 一种彩膜基板及显示装置
KR20180107385A (ko) 광루미네선스 장치, 이의 제조 방법 및 이를 포함하는 표시 장치
CN108845448A (zh) 一种改善量子点彩膜出光纯度的基板结构
CN107219669B (zh) 一种显示装置
CN203241664U (zh) 液晶显示屏及显示装置
CN109491137B (zh) 光调制量子点彩色显示器及其制造方法
US20160377788A1 (en) Backlight module and liquid crystal display device using the same

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 14355112

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13882035

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13882035

Country of ref document: EP

Kind code of ref document: A1