WO2017020359A1 - 彩色发光元件及液晶显示装置 - Google Patents

彩色发光元件及液晶显示装置 Download PDF

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Publication number
WO2017020359A1
WO2017020359A1 PCT/CN2015/087908 CN2015087908W WO2017020359A1 WO 2017020359 A1 WO2017020359 A1 WO 2017020359A1 CN 2015087908 W CN2015087908 W CN 2015087908W WO 2017020359 A1 WO2017020359 A1 WO 2017020359A1
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blue
light
film
pixel pattern
sub
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English (en)
French (fr)
Inventor
王亚楠
李泳锐
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/781,310 priority Critical patent/US20170146857A1/en
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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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/11—Anti-reflection coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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 
    • G02F1/015—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction
    • G02F1/017—Structures with periodic or quasi periodic potential variation, e.g. superlattices, quantum wells
    • G02F1/01791—Quantum boxes or quantum dots
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • G02F1/133507—Films for enhancing the luminance
    • 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
    • G02F1/133528—Polarisers
    • 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
    • G02F1/1339—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
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/36—Micro- or nanomaterials

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a color light emitting device and a liquid crystal display device having 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.
  • liquid crystal based operating modes are classified into: phase change (PC) type, twisted nematic (TN) type, super twisted nematic (STN) type, vertical alignment.
  • PC phase change
  • TN twisted nematic
  • STN super twisted nematic
  • VA In Plane Switching
  • Each mode has its own advantages and is applied in various fields.
  • the TN type has high contrast, but the associated color is severe.
  • the IPS type has excellent color shift but the contrast is not high.
  • the VA type has high contrast and color shift. Better, but not suitable for touch screen.
  • these display modes have their own advantages in different fields, but the mainstream development direction of LCD such as high color gamut and 3D fast response poses high challenges for these kinds of liquid crystal display modes.
  • a conventional LCD display device generally filters and absorbs light transmitted through a liquid crystal layer through an RGB color resist layer on a color filter film substrate, so that light of each pixel is composed of RGB three primary colors after being emitted, and different pixels are formed.
  • the principle of spatial color mixing is utilized to realize full color display.
  • the color filter film substrate can only pass light in a part of the band, and the RGB color resist layer reduces the light utilization rate to 1/3 while filtering, and most of the light is absorbed by the RGB color resist material.
  • the light intensity utilization rate is low, that is, the energy utilization rate corresponding to the backlight is low.
  • a filter film based on a quantum dot-based light conversion layer utilizes high-purity luminescence of quantum dots to optimize the color gamut of the extended LCD display, and the light is converted into a long wavelength band by a short wavelength band, wherein the energy conversion is performed.
  • the loss is small and the backlight utilization rate will be greatly improved.
  • photoluminescence has no specific directionality. Therefore, for the filter film of the quantum dot-based light conversion layer, the backlight utilization rate still needs to be improved.
  • An object of the present invention is to provide a color light-emitting element comprising a photoluminescent film mainly composed of a quantum dot material, and an anti-reflection film and an anti-reflection film provided on both sides of the photo-luminescence film, and irradiated in the backlight.
  • the photoluminescence film can emit red, green, and blue light
  • the anti-reflection film and the anti-reflection film can collect the light emitted by the photo-luminescence film, and concentrate the light to be transmitted through the anti-reflection film, so that the light is obtained. More efficient use, improve the utilization of backlight.
  • Another object of the present invention is to provide a liquid crystal display device which uses the above-mentioned color light-emitting element instead of the color photoresist layer in the liquid crystal display panel, and realizes high color gamut display and high color purity by using the excellent light-emitting characteristics of quantum dots, thereby improving liquid crystal display. Display performance of the panel.
  • the present invention provides a color light-emitting element, comprising a photo-emitting film, and an anti-reflection film and an anti-reflection film disposed on both sides of the photo-luminescence film;
  • the photoluminescent film is provided with a red sub-pixel pattern, a green sub-pixel pattern, and a blue sub-pixel pattern;
  • the red sub-pixel pattern adopts a red light quantum dot material
  • the green sub-pixel pattern adopts a green light quantum dot material
  • the blue sub-pixel pattern adopts a blue quantum dot material or a non-luminescent transparent organic material
  • the red sub-pixel pattern, the green sub-pixel pattern, and the blue sub-pixel pattern on the photoluminescent film respectively emit red and green And blue light
  • the light emitted by the photoluminescence film is collected by the anti-reflection film and the anti-reflection film, and then transmitted from the anti-reflection film side.
  • the color light-emitting element is irradiated with blue-violet light, a red sub-pixel pattern, a green sub-pixel pattern, and a blue sub-pixel pattern on the photoluminescent film. Red, green, and blue light are emitted under the excitation of blue-violet light.
  • the blue sub-pixel pattern adopts a transparent organic material that does not emit light
  • the red sub-pixel pattern and the green sub-pixel pattern on the photoluminescent film are excited by blue-violet light.
  • the red light and the green light are respectively emitted, and the blue light passes through the transparent blue sub-pixel pattern, so that the blue sub-pixel pattern emits blue light.
  • the antireflection film has a thickness of 110 nm to 160 nm, 1430 nm to 1490 nm, or 1720 nm to 1760 nm; and the thickness of the antireflection film is 320 nm to 350 nm, 1900 nm to 2200 nm, or 2150 to 2300 nm.
  • the present invention also provides a liquid crystal display device including a liquid crystal display panel and a backlight module disposed on one side of the liquid crystal display panel;
  • the liquid crystal display panel includes an upper substrate, a lower substrate disposed opposite the upper substrate, a liquid crystal layer disposed between the upper substrate and the lower substrate, and a photoresist spacer disposed between the upper and lower substrates;
  • the upper substrate includes a first substrate, a common electrode disposed on a lower surface of the first substrate, a first alignment film, an upper polarizer disposed on an upper surface of the first substrate, and a top portion disposed on the upper polarizer a color light-emitting element and a protective film disposed above the color light-emitting element;
  • the color light-emitting element comprises a photo-emitting film, and an anti-reflection film and an anti-reflection film disposed on both sides of the photo-luminescence film;
  • the photoluminescent film is provided with a red sub-pixel pattern, a green sub-pixel pattern, and a blue sub-pixel pattern;
  • the red sub-pixel pattern adopts a red light quantum dot material
  • the green sub-pixel pattern adopts a green light quantum dot material
  • the blue sub-pixel pattern adopts a blue quantum dot material or a non-luminescent transparent organic material
  • the red sub-pixel pattern, the green sub-pixel pattern, and the blue sub-pixel pattern on the photoluminescent film respectively emit red and green And blue light
  • the light emitted by the photoluminescence film is collected by the anti-reflection film and the anti-reflection film, and then transmitted from the anti-reflection film side.
  • the backlight module When the blue sub-pixel pattern adopts a blue quantum dot material, the backlight module provides a blue-violet light source; when the blue sub-pixel pattern uses a transparent organic material that does not emit light, the backlight module provides a blue light source.
  • the present invention also provides a liquid crystal display device including a liquid crystal display panel and a backlight module disposed on one side of the liquid crystal display panel;
  • the liquid crystal display panel includes an upper substrate, a lower substrate disposed opposite the upper substrate, a liquid crystal layer disposed between the upper substrate and the lower substrate, and a photoresist spacer disposed between the upper and lower substrates;
  • the upper substrate includes a first substrate, a color light-emitting element disposed under the first substrate, an upper polarizer disposed under the color light-emitting element, and a common electrode disposed under the upper polarizer and the first Alignment film
  • the color light-emitting element comprises a photo-emitting film, and an anti-reflection film and an anti-reflection film disposed on both sides of the photo-luminescence film;
  • the photoluminescent film is provided with a red sub-pixel pattern, a green sub-pixel pattern, and a blue sub-pixel pattern;
  • the red sub-pixel pattern adopts a red light quantum dot material
  • the green sub-pixel pattern adopts a green light quantum dot material
  • the blue sub-pixel pattern adopts a blue quantum dot material or does not emit light.
  • Transparent organic material
  • the red sub-pixel pattern, the green sub-pixel pattern, and the blue sub-pixel pattern on the photoluminescent film respectively emit red and green And blue light
  • the light emitted by the photoluminescence film is collected by the anti-reflection film and the anti-reflection film, and then transmitted from the anti-reflection film side.
  • the backlight module When the blue sub-pixel pattern adopts a blue quantum dot material, the backlight module provides a blue-violet light source; when the blue sub-pixel pattern uses a transparent organic material that does not emit light, the backlight module provides a blue light source.
  • the lower substrate includes a second substrate, a lower polarizer disposed on a lower surface of the second substrate, a TFT layer disposed on the second substrate, and a pixel electrode disposed on the TFT layer, and a second alignment film on the pixel electrode.
  • the thickness of the anti-reflection film is 320 nm to 350 nm, 1900 nm to 2200 nm, or 2150 to 2300 nm; and the thickness of the antireflection film is 110 nm to 160 nm, 1430 nm to 1490 nm, or 1720 nm to 1760 nm.
  • the present invention provides a color light-emitting element including a photoluminescence film mainly composed of a quantum dot material, and a liquid crystal display device, and an increase in both sides of the photoluminescence film
  • the anti-film and the anti-reflection film under the illumination of the backlight, the photo-luminescence film can emit red, green and blue light, and the anti-reflection film and the anti-reflection film can collect the light emitted by the photo-luminescence film, and concentrate The light is transmitted through the anti-reflection film, so that the light is more effectively utilized and the utilization of the backlight is improved.
  • the liquid crystal display device adopts the color light-emitting element instead of the color photoresist layer in the liquid crystal display panel, and realizes high color gamut display and high color purity by using the excellent light-emitting characteristics of the quantum dots, thereby improving display performance and backlight utilization of the liquid crystal display panel.
  • the color light-emitting element is provided with an anti-reflection film and an anti-reflection film on the upper and lower sides of the photo-luminescence film, respectively, can effectively collect the light emitted by the photo-luminescence film, and concentrate the light transmission through the anti-reflection film. Going out and increasing the transmittance of the backlight into the photoluminescent film layer further improves the utilization of the backlight.
  • FIG. 1 is a cross-sectional structural view showing a first embodiment of a color light-emitting element of the present invention
  • FIG. 2 is a cross-sectional structural view showing a second embodiment of the color light-emitting element of the present invention
  • FIG. 3 is a schematic structural view of a first embodiment of a liquid crystal display device according to the present invention.
  • FIG. 4 is a schematic structural view of a second embodiment of a liquid crystal display device according to the present invention.
  • FIG. 5 is a schematic structural view of a third embodiment of a liquid crystal display device according to the present invention.
  • FIG. 6 is a schematic structural view of a fourth embodiment of a liquid crystal display device of the present invention.
  • the present invention first provides a color light-emitting element, including a photo-emitting film 110, and an anti-reflection film 120 and an anti-reflection film 130 disposed on both sides of the photo-emitting film 110;
  • the photo-emitting film 110 is provided with a red sub-pixel pattern 111, a green sub-pixel pattern 112, and a blue sub-pixel pattern 113/113';
  • the red sub-pixel pattern 111 is a red light quantum dot material
  • the green sub-pixel pattern 112 is a green light quantum dot material
  • the blue sub-pixel pattern 113/113' is a blue light quantum dot material or a non-luminescent transparent organic material
  • the red sub-pixel pattern 111, the green sub-pixel pattern 112, and the blue sub-pixel pattern 113/ on the photo-emitting film 110/ 113' emits red, green, and blue light, respectively, and the light emitted from the photoluminescence film 110 is collected by the anti-reflection film 120 and the anti-reflection film 130, and then transmitted from the anti-reflection film 130 side.
  • the blue sub-pixel pattern 113 is a blue quantum dot material
  • the color light-emitting element is irradiated with blue-violet light
  • the red sub-pixel pattern 111 on the photo-emitting film 110 is used.
  • the green sub-pixel pattern 112 and the blue sub-pixel pattern 113 respectively emit red, green, and blue light under excitation of blue-violet light.
  • the blue sub-pixel pattern 113' adopts a transparent organic material that does not emit light
  • the color light-emitting element is irradiated with blue light
  • the red sub-pixel on the photo-emitting film 110 The pattern 111 and the green sub-pixel pattern 112 respectively emit red light and green light under excitation of blue-violet light, and the blue light passes through the transparent blue sub-pixel pattern 113 ′ such that the blue sub-pixel pattern 113 ′ emits blue light.
  • the thickness of the anti-reflection film 120 is 320 nm-350 nm, 1900 nm-2200 nm, or 2150-2300 nm; and the thickness of the anti-reflection film 130 is 110 nm-160 nm, 1430 nm-1490 nm, or 1720 nm-1760 nm.
  • the refractive index of the medium on both sides of the film layer, the anti-reflection film can fully enhance the effect; according to the principle of reversal, (2n+1) ( ⁇ / 4), ⁇ is the wavelength of light, the anti-reflection film can be completely The role of reversal.
  • the thickness of the film of the antireflection film and the antireflection film in the present invention is calculated according to the above formula by considering the three color wavelengths of red, green and blue.
  • the anti-reflection film 120 and the anti-reflection film 130 on the upper and lower sides of the photo-emitting film 110, the light emitted from the photo-emitting film 110 can be effectively collected, and the light is transmitted through the anti-reflection.
  • the film 130 is transmitted out, so that the light is more effectively utilized, and the utilization of the backlight is improved.
  • the red light quantum dot material, the green light quantum dot material, and the blue light quantum dot material are semiconductor nanocrystalline materials or other photoluminescent materials having narrow luminescence peaks.
  • the present invention further provides a liquid crystal display device, comprising a liquid crystal display panel 100, and a backlight module 200 disposed on one side of the liquid crystal display panel 100;
  • the liquid crystal display panel 100 includes an upper substrate 1 , a lower substrate 2 disposed opposite the upper substrate 1 , a liquid crystal layer 3 disposed between the upper substrate 1 and the lower substrate 2 , and the upper and lower substrates 1 and 2 . Between the photoresist spacers 4.
  • the upper substrate 1 includes a first substrate 11 , a common electrode 12 and a first alignment film 13 disposed on a lower surface of the first substrate 11 , and an upper polarizer 14 disposed on an upper surface of the first substrate 11 .
  • the lower substrate 2 includes a second substrate 21, a lower polarizer 22 disposed on a lower surface of the second substrate 21, a TFT layer 23 disposed on the second substrate 21, and a TFT layer 23 disposed on the TFT layer 23. a pixel electrode 24, and a second alignment film 25 disposed on the pixel electrode 24;
  • the color light-emitting element 15 includes a photo-emitting film 110, and an anti-reflection film 120 and an anti-reflection film 130 disposed on both sides of the photo-emitting film 110;
  • the photo-emitting film 110 is provided with a red sub-pixel pattern 111, a green sub-pixel pattern 112, and a blue sub-pixel pattern 113/113';
  • the red sub-pixel pattern 111 is a red light quantum dot material
  • the green sub-pixel pattern 112 is a green light quantum dot material
  • the blue sub-pixel pattern 113/113' is a blue light quantum dot material or a non-luminescent transparent organic material
  • the red sub-pixel pattern 111, the green sub-pixel pattern 112, and the blue sub-pixel pattern 113/ on the photo-emitting film 110/ 113' emits red, green, and blue light, respectively, and the light emitted from the photoluminescence film 110 is collected by the anti-reflection film 120 and the anti-reflection film 130, and then transmitted from the anti-reflection film 130 side.
  • the backlight module 200 provides a blue-violet light source; as shown in FIG. 4, the blue sub-pixel image
  • the backlight module 200 provides a blue light source.
  • the thickness of the anti-reflection film 120 is 320 nm-350 nm, 1900 nm-2200 nm, or 2150-2300 nm; and the thickness of the anti-reflection film 130 is 110 nm-160 nm, 1430 nm-1490 nm, or 1720 nm-1760 nm.
  • the first substrate 11 and the second substrate 21 are both glass substrates.
  • the present invention further provides another liquid crystal display device, including a liquid crystal display panel 100, and a backlight module 200 disposed on one side of the liquid crystal display panel 100;
  • the liquid crystal display panel 100 includes an upper substrate 1 , a lower substrate 2 opposite to the upper substrate 2 , a liquid crystal layer 3 disposed between the upper substrate 1 and the lower substrate 2 , and a substrate 3 and 2 disposed on the upper and lower substrates 1 and 2 .
  • the upper substrate 1 includes a first substrate 11 , a color light-emitting element 15 disposed under the first substrate 11 , an upper polarizer 14 disposed under the color light-emitting element 15 , and an upper polarizer 14 .
  • the lower substrate 2 includes a second substrate 21, a lower polarizer 22 disposed on a lower surface of the second substrate 21, a TFT layer 23 disposed on the second substrate 21, and a TFT layer 23 disposed on the TFT layer 23. a pixel electrode 24, and a second alignment film 25 disposed on the pixel electrode 24;
  • the color light-emitting element 15 includes a photo-emitting film 110, and an anti-reflection film 120 and an anti-reflection film 130 disposed on both sides of the photo-emitting film 110;
  • the photo-emitting film 110 is provided with a red sub-pixel pattern 111, a green sub-pixel pattern 112, and a blue sub-pixel pattern 113/113';
  • the red sub-pixel pattern 111 is a red light quantum dot material
  • the green sub-pixel pattern 112 is a green light quantum dot material
  • the blue sub-pixel pattern 113/113' is a blue light quantum dot material or a non-luminescent transparent organic material
  • the red sub-pixel pattern 111, the green sub-pixel pattern 112, and the blue sub-pixel pattern 113/ on the photo-emitting film 110/ 113' emits red, green, and blue light, respectively, and the light emitted from the photoluminescence film 110 is collected by the anti-reflection film 120 and the anti-reflection film 130, and then transmitted from the anti-reflection film 130 side.
  • the backlight module 200 provides a blue-violet light source; as shown in FIG. 6, the blue sub-pixel pattern 113' The backlight module 200 provides a blue light source when a transparent organic material that does not emit light is used.
  • the thickness of the anti-reflection film 120 is 320 nm-350 nm, 1900 nm-2200 nm, or 2150-2300 nm; and the thickness of the anti-reflection film 130 is 110 nm-160 nm, 1430 nm-1490 nm, or 1720 nm-1760 nm.
  • the first substrate 11 and the second substrate 21 are both glass substrates.
  • the present invention provides a color light-emitting element including a photoluminescence film mainly composed of a quantum dot material, and a color-increasing film provided on both sides of the photo-luminescence film, and a liquid crystal display device.
  • the film and the antireflection film can emit red, green and blue light under the illumination of the backlight, and the antireflection film and the antireflection film can collect the light emitted by the photoluminescence film and concentrate the light. Transmitted through the anti-reflection film, the light is more effectively utilized, and the utilization of the backlight is improved.
  • the liquid crystal display device adopts the color light-emitting element instead of the color photoresist layer in the liquid crystal display panel, and realizes high color gamut display and high color purity by using the excellent light-emitting characteristics of the quantum dots, thereby improving display performance and backlight utilization of the liquid crystal display panel.
  • the color light-emitting element is provided with an anti-reflection film and an anti-reflection film on the upper and lower sides of the photo-luminescence film, respectively, can effectively collect the light emitted by the photo-luminescence film, and concentrate the light transmission through the anti-reflection film. Going out and increasing the transmittance of the backlight into the photoluminescent film layer further improves the utilization of the backlight.

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Abstract

提供一种彩色发光元件及液晶显示装置，彩色发光元件包括主要由量子点材料构成的光致发光膜（110）、及设于光致发光膜（110）两侧的增反膜（120）与增透膜（130），在背光源的照射下，光致发光膜（110）可以发出红、绿、蓝光，增反膜（120）与增透膜（130）可以聚集光致发光膜（110）发出的光线，并集中将光线透过增透膜（130）传输出去，使得光线得到更有效的利用，提高背光的利用率。采用彩色发光元件代替液晶显示面板中的彩色光阻层，利用量子点优异的发光特性实现高色域显示及高色彩纯度，提高了液晶显示面板（100）的显示性能。

Description

彩色发光元件及液晶显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种彩色发光元件及具有该彩色发光元件的液晶显示装置。
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。
在LCD显示器中，基于液晶的运作模式的分类有：相变(phase change，PC)型、扭转向列(twisted nematic，TN)型、超扭转向列(super twisted nematic，STN)型、垂直配向型(Vertical Alignment，VA)、横向电场切换型(In plane Switching，IPS)等。各种模式各有优点而应用于各种不同的领域中，TN型具有高对比，但相伴生色偏严重；IPS型色偏表现优异但其对比不高；VA型具有高对比，色偏亦较优，但不宜用于触摸屏(touch)上。当前这几种显示模式在不同的领域都有各自的优势，但LCD的主流的发展方向诸如高色域、3D快速响应对于这几种液晶显示模式都提出了高的挑战。
传统的LCD显示装置，通常通过彩色滤光膜基板上的RGB色阻层将透过液晶层的光线进行过滤吸收，使得每个像素的光在射出后都是由RGB三基色构成，不同的像素对应发出不同颜色的光，利用空间混色原理，从而实现全彩显示。但是彩色滤光膜基板只可以让部分波段的光线通过，RGB色阻层在完成滤光的同时，也将光的利用率降低到1/3，大部分的光都被RGB色阻材料吸收掉，光强利用率低，即对应于背光的能量利用率低。而现有一种基于量子点的光转化层的滤光膜片，利用量子点的高纯度发光，优化扩展LCD显示的色域，光线由短波段转化长波段，其中的能量转换的 损耗小，背光利用率将得到很大的提高。然而对于量子点，其光致发光是没有特定方向性的。因此，对于基于量子点的的光转化层的滤光膜片，背光利用率仍有待提高。
发明内容
本发明的目的在于提供一种彩色发光元件，包括主要由量子点材料构成的光致发光膜、及设于所述光致发光膜两侧的增反膜与增透膜，在背光源的照射下，所述光致发光膜可以发出红、绿、蓝光，所述增反膜与增透膜可以聚集光致发光膜发出的光线，并集中将光线透过增透膜传输出去，使得光线得到更有效的利用，提高背光的利用率。
本发明的目的还在于提供一种液晶显示装置，采用上述彩色发光元件代替液晶显示面板中的彩色光阻层，利用量子点优异的发光特性实现高色域显示及高色彩纯度，提高了液晶显示面板的显示性能。
为实现上述目的，本发明提供一种彩色发光元件，包括光致发光膜、及设于光致发光膜两侧的增反膜与增透膜；
所述光致发光膜上设有红色子像素图案、绿色子像素图案、及蓝色子像素图案；
所述红色子像素图案采用红光量子点材料，所述绿色子像素图案采用绿光量子点材料，所述蓝色子像素图案采用蓝光量子点材料或者不发光的透明有机材料；
从所述增反膜一侧对该彩色发光元件照射蓝紫光或蓝光时，所述光致发光膜上的红色子像素图案、绿色子像素图案、及蓝色子像素图案分别发射出红、绿、蓝光，所述光致发光膜发出的光线经所述增反膜与增透膜聚集后，从所述增透膜一侧传输出去。
当所述蓝色子像素图案采用蓝光量子点材料时，采用蓝紫光对该彩色发光元件进行照射，所述光致发光膜上的红色子像素图案、绿色子像素图案、及蓝色子像素图案在蓝紫光的激发下分别发出红、绿、蓝光。
当所述蓝色子像素图案采用不发光的透明有机材料时，采用蓝光对该彩色发光元件进行照射时，所述光致发光膜上的红色子像素图案、绿色子像素图案在蓝紫光的激发下分别发出红光、及绿光，所述蓝光穿过透明的蓝色子像素图案，使得蓝色子像素图案发出蓝光。
所述增透膜的厚度为110nm-160nm、1430nm-1490nm、或1720nm-1760nm；所述增反膜的厚度为320nm-350nm、1900nm-2200nm、或2150-2300nm。
本发明还提供一种液晶显示装置，包括液晶显示面板、及设于液晶显示面板一侧的背光模组；
所述液晶显示面板包括上基板、与上基板相对设置的下基板、设于上基板与下基板之间的液晶层、及设于所述上、下基板之间的光阻间隙物；
所述上基板包括第一基板、设于所述第一基板下表面的公共电极与第一配向膜、设于所述第一基板上表面的上偏光片、设于所述上偏光片上方的彩色发光元件、及设于所述彩色发光元件上方的保护膜；
所述彩色发光元件包括光致发光膜、及设于光致发光膜两侧的增反膜与增透膜；
所述光致发光膜上设有红色子像素图案、绿色子像素图案、及蓝色子像素图案；
所述红色子像素图案采用红光量子点材料，所述绿色子像素图案采用绿光量子点材料，所述蓝色子像素图案采用蓝光量子点材料或者不发光的透明有机材料；
从所述增反膜一侧对该彩色发光元件照射蓝紫光或蓝光时，所述光致发光膜上的红色子像素图案、绿色子像素图案、及蓝色子像素图案分别发射出红、绿、蓝光，所述光致发光膜发出的光线经所述增反膜与增透膜聚集后，从所述增透膜一侧传输出去。
所述蓝色子像素图案采用蓝光量子点材料时，所述背光模组提供蓝紫色光源；所述蓝色子像素图案采用不发光的透明有机材料时，所述背光模组提供蓝色光源。
本发明还提供一种液晶显示装置，包括液晶显示面板、及设于液晶显示面板一侧的背光模组；
所述液晶显示面板包括上基板、与上基板相对设置的下基板、设于上基板与下基板之间的液晶层、及设于所述上、下基板之间的光阻间隙物；
所述上基板包括第一基板、设于所述第一基板下方的彩色发光元件、设于所述彩色发光元件下方的上偏光片、及设于所述上偏光片下方的公共电极与第一配向膜；
所述彩色发光元件包括光致发光膜、及设于光致发光膜两侧的增反膜与增透膜；
所述光致发光膜上设有红色子像素图案、绿色子像素图案、及蓝色子像素图案；
所述红色子像素图案采用红光量子点材料，所述绿色子像素图案采用绿光量子点材料，所述蓝色子像素图案采用蓝光量子点材料或者不发光的 透明有机材料；
从所述增反膜一侧对该彩色发光元件照射蓝紫光或蓝光时，所述光致发光膜上的红色子像素图案、绿色子像素图案、及蓝色子像素图案分别发射出红、绿、蓝光，所述光致发光膜发出的光线经所述增反膜与增透膜聚集后，从所述增透膜一侧传输出去。
所述蓝色子像素图案采用蓝光量子点材料时，所述背光模组提供蓝紫色光源；所述蓝色子像素图案采用不发光的透明有机材料时，所述背光模组提供蓝色光源。
所述下基板包括第二基板、设于所述第二基板下表面的下偏光片、设于所述第二基板上的TFT层、及设于所述TFT层上的像素电极、及设于所述像素电极上的第二配向膜。
所述增反膜的厚度为320nm-350nm、1900nm-2200nm、或2150-2300nm；所述增透膜的厚度为110nm-160nm、1430nm-1490nm、或1720nm-1760nm。
本发明的有益效果：本发明提供一种彩色发光元件及液晶显示装置，所述彩色发光元件包括主要由量子点材料构成的光致发光膜、及设于所述光致发光膜两侧的增反膜与增透膜，在背光源的照射下，所述光致发光膜可以发出红、绿、蓝光，所述增反膜与增透膜可以聚集光致发光膜发出的光线，并集中将光线透过增透膜传输出去，使得光线得到更有效的利用，提高背光的利用率。所述液晶显示装置，采用该彩色发光元件代替液晶显示面板中的彩色光阻层，利用量子点优异的发光特性实现高色域显示及高色彩纯度，提高了液晶显示面板的显示性能及背光利用率，且该彩色发光元件在光致发光膜的上下两侧分别设置有增透膜及增反膜，能够将光致发光膜发射的光线进行有效聚集，并集中将光线透过增透膜传输出去，同时增加背光进入光致发光膜层的穿透率，从而进一步了提高背光的利用率。
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为本发明的彩色发光元件的第一实施例的剖面结构示意图；
图2为本发明的彩色发光元件的第二实施例的剖面结构示意图；
图3为本发明液晶显示装置第一实施例的结构示意图；
图4为本发明液晶显示装置第二实施例的结构示意图；
图5为本发明液晶显示装置第三实施例的结构示意图；
图6为本发明液晶显示装置第四实施例的结构示意图。
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1-2，本发明首先提供一种彩色发光元件，包括光致发光膜110、及设于光致发光膜110两侧的增反膜120与增透膜130；
所述光致发光膜110上设有红色子像素图案111、绿色子像素图案112、及蓝色子像素图案113/113’；
所述红色子像素图案111采用红光量子点材料，所述绿色子像素图案112采用绿光量子点材料，所述蓝色子像素图案113/113’采用蓝光量子点材料或者不发光的透明有机材料；
从所述增反膜120一侧对该彩色发光元件照射蓝紫光或蓝光时，所述光致发光膜110上的红色子像素图案111、绿色子像素图案112、及蓝色子像素图案113/113’分别发射出红、绿、蓝光，所述光致发光膜110发出的光线经所述增反膜120与增透膜130聚集后，从所述增透膜130一侧传输出去。
具体的，如图1所示，当所述蓝色子像素图案113采用蓝光量子点材料时，采用蓝紫光对该彩色发光元件进行照射，所述光致发光膜110上的红色子像素图案111、绿色子像素图案112、及蓝色子像素图案113在蓝紫光的激发下分别发出红、绿、蓝光。
具体的，如图2所示，当所述蓝色子像素图案113’采用不发光的透明有机材料时，采用蓝光对该彩色发光元件进行照射，所述光致发光膜110上的红色子像素图案111、绿色子像素图案112在蓝紫光的激发下分别发出红光、及绿光，所述蓝光穿过透明的蓝色子像素图案113’，使得蓝色子像素图案113’发出蓝光。
具体的，所述增反膜120的厚度为320nm-350nm、1900nm-2200nm、或2150-2300nm；所述增透膜130的厚度为110nm-160nm、1430nm-1490nm、或1720nm-1760nm。
理论上，根据增透原理，膜层厚度满足(2n+1)(λ/4)，λ为光线波长，膜层折射率＝(n1*n2)^(1/2)，n1，n2分别为膜层两边的介质折射率，增透膜就能起到完全增透的作用；根据增反原理，(2n+1)(λ/4)，λ为光线波长，增透膜就能起到完全增反的作用。增透膜与增反膜功能的实现与膜厚 密切相关，鉴于膜层的厚度与光线波长相关，本发明中增透膜与增反膜的膜层厚度均是依据上述公式考虑红绿蓝三色波长计算得出。
本发明的彩色发光元件，通过在光致发光膜110的上下两侧分别设置增反膜120及增透膜130，可有效聚集光致发光膜110发出的光线，并集中将光线透过增透膜130传输出去，使得光线得到更有效的利用，提高背光的利用率。
具体的，所述红光量子点材料、绿光量子点材料、及蓝光量子点材料为半导体纳米晶材料或者其他具有窄发光峰的光致发光材料。
请参阅图3-4，本发明还提供一种液晶显示装置，包括液晶显示面板100、及设于液晶显示面板100一侧的背光模组200；
所述液晶显示面板100包括上基板1、与上基板1相对设置的下基板2、设于上基板1与下基板2之间的液晶层3、及设于所述上、下基板1、2之间的光阻间隙物4。
所述上基板1包括第一基板11、设于所述第一基板11下表面的公共电极12与第一配向膜13、设于所述第一基板11上表面的上偏光片14、设于所述上偏光片14上方的彩色发光元件15、及设于所述彩色发光元件15上方的保护膜16；
所述下基板2包括第二基板21、设于所述第二基板21下表面的下偏光片22、设于所述第二基板21上的TFT层23、及设于所述TFT层23上的像素电极24、及设于所述像素电极24上的第二配向膜25；
所述彩色发光元件15包括光致发光膜110、及设于光致发光膜110两侧的增反膜120与增透膜130；
所述光致发光膜110上设有红色子像素图案111、绿色子像素图案112、及蓝色子像素图案113/113’；
所述红色子像素图案111采用红光量子点材料，所述绿色子像素图案112采用绿光量子点材料，所述蓝色子像素图案113/113’采用蓝光量子点材料或者不发光的透明有机材料；
从所述增反膜120一侧对该彩色发光元件照射蓝紫光或蓝光时，所述光致发光膜110上的红色子像素图案111、绿色子像素图案112、及蓝色子像素图案113/113’分别发射出红、绿、蓝光，所述光致发光膜110发出的光线经所述增反膜120与增透膜130聚集后，从所述增透膜130一侧传输出去。
具体的，如图3所示，所述蓝色子像素图案113采用蓝光量子点材料时，所述背光模组200提供蓝紫色光源；如图4所示，所述蓝色子像素图 案113’采用不发光的透明有机材料时，所述背光模组200提供蓝色光源。
具体的，所述增反膜120的厚度为320nm-350nm、1900nm-2200nm、或2150-2300nm；所述增透膜130的厚度为110nm-160nm、1430nm-1490nm、或1720nm-1760nm。
优选的，所述第一基板11与第二基板21均为玻璃基板。
请参阅图5-6，本发明还提供另一种液晶显示装置，包括液晶显示面板100、及设于液晶显示面板100一侧的背光模组200；
所述液晶显示面板100包括上基板1、与上基板1相对的下基板2、设于上基板1与下基板2之间的液晶层3、及设于所述上、下基板1、2之间的光阻间隙物4；
所述上基板1包括第一基板11、设于所述第一基板11下方的彩色发光元件15、设于所述彩色发光元件15下方的上偏光片14、及设于所述上偏光片14下方的公共电极12与第一配向膜13；
所述下基板2包括第二基板21、设于所述第二基板21下表面的下偏光片22、设于所述第二基板21上的TFT层23、及设于所述TFT层23上的像素电极24、及设于所述像素电极24上的第二配向膜25；
所述彩色发光元件15包括光致发光膜110、及设于光致发光膜110两侧的增反膜120与增透膜130；
所述光致发光膜110上设有红色子像素图案111、绿色子像素图案112、及蓝色子像素图案113/113’；
所述红色子像素图案111采用红光量子点材料，所述绿色子像素图案112采用绿光量子点材料，所述蓝色子像素图案113/113’采用蓝光量子点材料或者不发光的透明有机材料；
从所述增反膜120一侧对该彩色发光元件照射蓝紫光或蓝光时，所述光致发光膜110上的红色子像素图案111、绿色子像素图案112、及蓝色子像素图案113/113’分别发射出红、绿、蓝光，所述光致发光膜110发出的光线经所述增反膜120与增透膜130聚集后，从所述增透膜130一侧传输出去。
具体的，如图5所示，所述蓝色子像素图案113采用蓝光量子点材料时，所述背光模组200提供蓝紫色光源；如图6所示，所述蓝色子像素图案113’采用不发光的透明有机材料时，所述背光模组200提供蓝色光源。
具体的，所述增反膜120的厚度为320nm-350nm、1900nm-2200nm、或2150-2300nm；所述增透膜130的厚度为110nm-160nm、1430nm-1490nm、或1720nm-1760nm。
优选的，所述第一基板11与第二基板21均为玻璃基板。
综上所述，本发明提供一种彩色发光元件及液晶显示装置，所述彩色发光元件包括主要由量子点材料构成的光致发光膜、及设于所述光致发光膜两侧的增反膜与增透膜，在背光源的照射下，所述光致发光膜可以发出红、绿、蓝光，所述增反膜与增透膜可以聚集光致发光膜发出的光线，并集中将光线透过增透膜传输出去，使得光线得到更有效的利用，提高背光的利用率。所述液晶显示装置，采用该彩色发光元件代替液晶显示面板中的彩色光阻层，利用量子点优异的发光特性实现高色域显示及高色彩纯度，提高了液晶显示面板的显示性能及背光利用率，且该彩色发光元件在光致发光膜的上下两侧分别设置有增透膜及增反膜，能够将光致发光膜发射的光线进行有效聚集，并集中将光线透过增透膜传输出去，同时增加背光进入光致发光膜层的穿透率，从而进一步了提高背光的利用率。
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. 一种彩色发光元件，包括光致发光膜、及设于光致发光膜两侧的增反膜与增透膜；
    所述光致发光膜上设有红色子像素图案、绿色子像素图案、及蓝色子像素图案；
    所述红色子像素图案采用红光量子点材料，所述绿色子像素图案采用绿光量子点材料，所述蓝色子像素图案采用蓝光量子点材料或者不发光的透明有机材料；
    从所述增反膜一侧对该彩色发光元件照射蓝紫光或蓝光时，所述光致发光膜上的红色子像素图案、绿色子像素图案、及蓝色子像素图案分别发射出红、绿、蓝光，所述光致发光膜发出的光线经所述增反膜与增透膜聚集后，从所述增透膜一侧传输出去。
  2. 如权利要求1所述的彩色发光元件，其中，当所述蓝色子像素图案采用蓝光量子点材料时，采用蓝紫光对该彩色发光元件进行照射，所述光致发光膜上的红色子像素图案、绿色子像素图案、及蓝色子像素图案在蓝紫光的激发下分别发出红、绿、蓝光。
  3. 如权利要求1所述的彩色发光元件，其中，当所述蓝色子像素图案采用不发光的透明有机材料时，采用蓝光对该彩色发光元件进行照射，所述光致发光膜上的红色子像素图案、绿色子像素图案在蓝紫光的激发下分别发出红光、及绿光，所述蓝光穿过透明的蓝色子像素图案，使得蓝色子像素图案发出蓝光。
  4. 如权利要求1所述的彩色发光元件，其中，所述增透膜的厚度为110nm-160nm、1430nm-1490nm、或1720nm-1760nm；所述增反膜的厚度为320nm-350nm、1900nm-2200nm、或2150-2300nm。
  5. 一种液晶显示装置，包括液晶显示面板、及设于液晶显示面板一侧的背光模组；
    所述液晶显示面板包括上基板、与上基板相对设置的下基板、设于上基板与下基板之间的液晶层、及设于所述上、下基板之间的光阻间隙物；
    所述上基板包括第一基板、设于所述第一基板下表面的公共电极与第一配向膜、设于所述第一基板上表面的上偏光片、设于所述上偏光片上方的彩色发光元件、及设于所述彩色发光元件上方的保护膜；
    所述彩色发光元件包括光致发光膜、及设于光致发光膜两侧的增反膜 与增透膜；
    所述光致发光膜上设有红色子像素图案、绿色子像素图案、及蓝色子像素图案；
    所述红色子像素图案采用红光量子点材料，所述绿色子像素图案采用绿光量子点材料，所述蓝色子像素图案采用蓝光量子点材料或者不发光的透明有机材料；
    从所述增反膜一侧对该彩色发光元件照射蓝紫光或蓝光时，所述光致发光膜上的红色子像素图案、绿色子像素图案、及蓝色子像素图案分别发射出红、绿、蓝光，所述光致发光膜发出的光线经所述增反膜与增透膜聚集后，从所述增透膜一侧传输出去。
  6. 如权利要求5所述的液晶显示装置，其中，所述蓝色子像素图案采用蓝光量子点材料时，所述背光模组提供蓝紫色光源；所述蓝色子像素图案采用不发光的透明有机材料时，所述背光模组提供蓝色光源。
  7. 如权利要求5所述的液晶显示装置，其中，所述下基板包括第二基板、设于所述第二基板下表面的下偏光片、设于所述第二基板上的TFT层、及设于所述TFT层上的像素电极、及设于所述像素电极上的第二配向膜。
  8. 如权利要求5所述的液晶显示装置，其中，所述增反膜的厚度为320nm-350nm、1900nm-2200nm、或2150-2300nm；所述增透膜的厚度为110nm-160nm、1430nm-1490nm、或1720nm-1760nm。
  9. 一种液晶显示装置，包括液晶显示面板及设于液晶显示面板一侧的背光模组；
    所述液晶显示面板包括上基板、与上基板相对设置的下基板、设于上基板与下基板之间的液晶层、及设于所述上、下基板之间的光阻间隙物；
    所述上基板包括第一基板、设于所述第一基板下方的彩色发光元件、设于所述彩色发光元件下方的上偏光片、及设于所述上偏光片下方的公共电极与第一配向膜；所述彩色发光元件包括光致发光膜、及设于光致发光膜两侧的增反膜与增透膜；
    所述光致发光膜上设有红色子像素图案、绿色子像素图案、及蓝色子像素图案；
    所述红色子像素图案采用红光量子点材料，所述绿色子像素图案采用绿光量子点材料，所述蓝色子像素图案采用蓝光量子点材料或者不发光的透明有机材料；
    从所述增反膜一侧对该彩色发光元件照射蓝紫光或蓝光时，所述光致发光膜上的红色子像素图案、绿色子像素图案、及蓝色子像素图案分别发 射出红、绿、蓝光，所述光致发光膜发出的光线经所述增反膜与增透膜聚集后，从所述增透膜一侧传输出去。
  10. 如权利要求9所述的液晶显示装置，其中，所述蓝色子像素图案采用蓝光量子点材料时，所述背光模组提供蓝紫色光源；所述蓝色子像素图案采用不发光的透明有机材料时，所述背光模组提供蓝色光源。
  11. 如权利要求9所述的液晶显示装置，其中，所述下基板包括第二基板、设于所述第二基板下表面的下偏光片、设于所述第二基板上的TFT层、及设于所述TFT层上的像素电极、及设于所述像素电极上的第二配向膜。
  12. 如权利要求9所述的液晶显示装置，其中，所述增反膜的厚度为320nm-350nm、1900nm-2200nm、或2150-2300nm；所述增透膜的厚度为110nm-160nm、1430nm-1490nm、或1720nm-1760nm。
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