WO2014121559A1 - Cristal photonique, substrat de film coloré, panneau d'affichage et dispositif d'affichage - Google Patents

Cristal photonique, substrat de film coloré, panneau d'affichage et dispositif d'affichage Download PDF

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Publication number
WO2014121559A1
WO2014121559A1 PCT/CN2013/074615 CN2013074615W WO2014121559A1 WO 2014121559 A1 WO2014121559 A1 WO 2014121559A1 CN 2013074615 W CN2013074615 W CN 2013074615W WO 2014121559 A1 WO2014121559 A1 WO 2014121559A1
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WO
WIPO (PCT)
Prior art keywords
photonic crystal
film
area
red
color film
Prior art date
Application number
PCT/CN2013/074615
Other languages
English (en)
Chinese (zh)
Inventor
孙建
薛海林
王学路
陈小川
Original Assignee
北京京东方光电科技有限公司
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 北京京东方光电科技有限公司 filed Critical 北京京东方光电科技有限公司
Publication of WO2014121559A1 publication Critical patent/WO2014121559A1/fr

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Classifications

    • 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
    • G02B1/002—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of materials engineered to provide properties not available in nature, e.g. metamaterials
    • G02B1/005—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of materials engineered to provide properties not available in nature, e.g. metamaterials made of photonic crystals or photonic band gap materials
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/201—Filters in the form of arrays
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/32—Photonic crystals

Definitions

  • Photonic crystal color film substrate, display panel and display device
  • Embodiments of the present invention relate to a photonic crystal, a color filter substrate, a display panel, and a display device provided with the display panel. Background technique
  • liquid crystal displays LCDs
  • the backlight emits white light, which is filtered into three colors of color, and is divided into red, green and blue colors.
  • the prior art using color filter filtration has at least the following problems: White light is composed of light of different colors in different frequency bands, and after being filtered by color film, most of the light is absorbed by the color film. The light of one color can only be passed, so the existing liquid crystal panel has a technical problem of low transmittance. Summary of the invention
  • Embodiments of the present invention provide a photonic crystal, a color filter substrate, a display panel, and a display device, which solve the technical problem of low transmittance of the conventional display panel.
  • One aspect of the present invention provides a photonic crystal, the forbidden band of the photonic crystal includes a visible light band, and the photonic crystal is provided with a defect layer;
  • the photonic crystal includes at least a red region, a green region, and a blue region, and a photonic crystal with a defect layer corresponding to the red region is used to transmit red light, and a photonic crystal with a defect layer corresponding to the green region is used for Through the green light, the photonic crystal with the defect layer corresponding to the blue region is used to transmit blue light.
  • the photonic crystal is a one-dimensional photonic crystal.
  • the material of the photonic crystal is an organic material, an inorganic material or a composite material.
  • Another aspect of the present invention provides a color filter substrate comprising a photonic crystal film formed of the above photonic crystal;
  • the photonic crystal film is located under the color film of the color filter substrate, and the color film substrate includes at least red The color film, the green color film and the blue color film, and the red, green and blue regions of the photonic crystal film correspond to the positions of the red color film, the green color film and the blue color film, respectively.
  • Another aspect of the present invention provides a display panel including the above color film substrate.
  • a photonic crystal film formed of the photonic crystal described above, an upper polarizer and a lower polarizer are disposed, wherein the photonic crystal film is disposed on the lower polarizer.
  • the display panel further includes a color film substrate, the color film substrate includes at least a red color film, a green color film, and a blue color film, and the red, green, and blue regions of the photonic crystal film disposed on the lower polarizer Corresponding to the position of red color film, green color film, and blue color film.
  • the display panel further includes an array substrate, and the red, green, and blue regions of the photonic crystal film disposed on the lower polarizer respectively correspond to the positions of the three pixel regions of the array substrate or three of one pixel region.
  • the sub-pixel position corresponds.
  • the present invention provides a display device including the above display panel.
  • the display device further includes a backlight module, and the backlight module is provided with an optical film.
  • FIG. 1 is a schematic view of a photonic crystal provided by an embodiment of the present invention.
  • FIG. 2 is another schematic view of a photonic crystal provided by an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of an embodiment of a display panel according to an embodiment of the present invention. detailed description
  • One aspect of the invention relates to a photonic crystal, the forbidden band of the photonic crystal comprising a visible light band, and a defect layer disposed in the photonic crystal.
  • Figure 1 shows a photonic crystal provided by an embodiment of the present invention, the forbidden band of the photonic crystal Including the visible light band, and the defect layer is provided in the photonic crystal.
  • the wavelength range of the visible light band is
  • the forbidden band setting may be slightly wider than the visible light band, for example, the forbidden band may be set to 350-800 nm, or a wider range.
  • the photonic crystal includes at least a red region, a green region, and a blue region, wherein a photonic crystal with a defect layer corresponding to the red region is used to transmit red light, and a photonic crystal with a defect layer corresponding to the green region is used to transmit green light.
  • the photonic crystal with a defect layer corresponding to the blue region is used to transmit blue light.
  • the photonic crystal may include a red region, a green region, a blue region, and a yellow region, wherein the photonic crystal with a defect layer corresponding to the red region is used to transmit red light, corresponding to the green region.
  • the photonic crystal with a defect layer is used to transmit green light
  • the photonic crystal with a defect layer corresponding to the blue region is used to transmit blue light
  • the photonic crystal with a defect layer corresponding to the yellow region is used to transmit yellow light.
  • the photonic crystal may also include regions of other colors.
  • the photonic crystal is a one-dimensional photonic crystal.
  • two materials A and B of different refractive indexes are alternately arranged to form a forbidden band in the visible light band, and a third material D is added between the materials A and B.
  • the photonic crystal produces a defect layer.
  • the band range of the forbidden band and the defect layer can be changed by adjusting the thickness of the photonic crystal and its layers.
  • the photonic crystal in the embodiment of the present invention may be made of an organic material, an inorganic material, or an organic-inorganic composite material.
  • the photonic crystal in this embodiment can be used to form a photonic crystal film, which is disposed in a color film substrate, an array substrate or a display panel for improving the transmittance of light.
  • a second aspect of the invention relates to a color film substrate.
  • a color filter substrate comprising a photonic crystal film formed of the photonic crystal of the foregoing embodiment
  • the photonic crystal film is located under the color film of the color filter substrate, and the color film substrate comprises at least a red color film, a green color film and a blue color film, and the red, green and blue regions of the photonic crystal film respectively The positions of the red color film, the green color film, and the blue color film correspond.
  • the color filter substrate includes a red color film, a green color film, a blue color film, and a yellow color film.
  • the color filter substrate is provided with a photonic crystal film, and when applied to a display device, the light transmittance of the display device can be improved.
  • a third aspect of the invention relates to a display panel.
  • a display panel comprising the color filter substrate described in the foregoing embodiments.
  • another display panel comprising the photonic crystal film formed of the photonic crystal of the foregoing embodiment.
  • the display panel further includes an upper polarizer and a lower polarizer, and the photonic crystal film is disposed on the lower polarizer.
  • the photonic crystal film may be disposed either above the lower polarizer or below the lower polarizer.
  • the display panel further includes a color filter substrate, the color film substrate includes at least a red color film, a green color film, and a blue color film, and the red, green, and blue regions of the photonic crystal film disposed on the lower polarizer are respectively colored with red color The position of the film, the green color film, and the blue color film correspond.
  • the photonic crystal film is disposed on the lower polarizer to make the overall structure of the display panel more compact and compact.
  • the photonic crystal film is disposed together with the lower polarizer, it is necessary to pay attention to the red, green, and blue regions of the photonic crystal film respectively with the red color film, the green color film, and the blue when the lower polarizer is disposed in the display panel.
  • the position of the color film corresponds.
  • the display panel further includes an array substrate, and the red, green, and blue regions of the photonic crystal film disposed on the lower polarizer respectively correspond to the positions of the three pixel regions of the array substrate or the three sub-pixels of one pixel region.
  • the red, green, and blue regions of the photonic crystal film disposed on the lower polarizer at this time preferably correspond to the positions of the red color film, the green color film, and the blue color film.
  • the display panel in this embodiment is provided with a photonic crystal film which, when applied to a display device, can increase the light transmittance of the display device.
  • a fourth aspect of the invention relates to a display device.
  • a display device comprising the display panel of the above embodiment.
  • the display device further includes a backlight module, and the backlight module is provided with an optical film material, such as a prism film.
  • the display device provided by the embodiment of the present invention may be any product or component having a display function, such as an electronic paper, an OLED panel, a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, or the like.
  • a display function such as an electronic paper, an OLED panel, a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, or the like.
  • the display device may be a liquid crystal display device.
  • the liquid crystal display device includes an array substrate 72, a color filter substrate 71, and a liquid crystal layer interposed therebetween.
  • the backlight module includes a backlight 1, a prism film 2, and a diffusion film 3.
  • the upper surface of the color filter substrate 71 is provided with an upper polarizer 5, and a lower polarizer 6 is disposed on the lower surface of the array substrate 72.
  • the color film substrate 71 is provided with a color film 4, which is respectively a red color film and a green color. Membrane, blue color film.
  • the liquid crystal display device further includes a photonic crystal film 8 formed of the photonic crystal in the above embodiment.
  • the red color film, the green color film, and the blue color film respectively correspond to the positions of the red, green, and blue regions of the photonic crystal film.
  • the preparation process of the photonic crystal film 8 can be performed using an existing film forming technique such as sputtering, thermal evaporation, organic coating, ink jet printing, or the like.
  • the photonic crystal film 8 is located below the color film 4 of the liquid crystal panel, and the red, green, and blue regions of the photonic crystal film 8 correspond to the positions of the red color film R, the green color film 0, and the blue color film B, respectively.
  • the forbidden band of the photonic crystal film 8 includes a visible light band, and photonic crystals with a defect layer corresponding to the red, green, and blue regions respectively transmit red light, green light, and blue light.
  • the red light is taken as an example, and red light corresponding to the color of the defect layer of the red region can pass through the photonic crystal film 8, and Further, the color film 4 and the upper polarizer 5 are passed.
  • the remaining green light and blue light are reflected back by the photonic crystal film 8, and after scattering and re-reflection by other optical films such as the diffusion film 3 and the prism film 2, the green light and the blue light can respectively have a green defect layer.
  • the green and blue regions of the blue defect layer pass through the photonic crystal film 8, and further pass through the color film 4 and the upper polarizer 5.
  • the white light emitted by the backlight 1 is also the same as the red area in the green and blue areas.
  • the liquid crystal display device provided by the embodiment of the present invention, after one color of white light passes through the color film of the color, the light of other colors is not absorbed by the color film, but can also be from other colors.
  • the color film passes through, thereby improving the transmittance of the liquid crystal panel, and solving the technical problem that the transmittance of the conventional liquid crystal panel is low.
  • the forbidden band of the photonic crystal film includes a visible light band
  • the photonic crystals with the defect layer corresponding to the red, green, and blue regions are respectively transmitted through Red light, green light, blue light.
  • the white light emitted by the backlight reaches the photonic crystal film
  • light corresponding to the color of the defect layer in the region can pass through the color film in a certain region; the light of other colors is reflected back by the photonic crystal film.
  • the light of these colors can pass through the photonic crystal film from the other two regions having other color defect layers, and further through the color film.
  • the light of one color of the white light passes through the color film of the color
  • the light of the other color is not colored by the color film. It absorbs, but can also pass through the color film of other colors, thereby improving the transmittance of the display panel, and solving the technical problem that the transmittance of the existing display panel is low.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

La présente invention concerne un cristal photonique, un substrat de film coloré, un panneau d'affichage et un dispositif d'affichage. Une bande interdite du cristal photonique comprend une gamme d'ondes du rayonnement visible, et une couche de défaut se situe dans le cristal photonique. Ce cristal photonique comporte une zone rouge, une zone verte et une zone bleue. Un cristal photonique doté d'une couche de défaut et correspondant à la zone rouge est utilisé pour transmettre une lumière rouge, un cristal photonique muni d'une couche de défaut et correspondant à la zone verte est utilisé pour transmettre une lumière verte, et le cristal photonique doté d'une couche de défaut et correspondant à la zone bleue est utilisé pour transmettre une lumière bleue. Le substrat de film coloré et le panneau d'affichage incluent chacun un film à cristal photonique qui est constitué d'un cristal photonique. Le dispositif d'affichage comprend un panneau d'affichage muni d'un film à cristal photonique. Le cristal photonique résout le problème technique de la faible transmittance d'un panneau d'affichage, qui se pose dans l'état de la technique.
PCT/CN2013/074615 2013-02-05 2013-04-24 Cristal photonique, substrat de film coloré, panneau d'affichage et dispositif d'affichage WO2014121559A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310046222.2A CN103091756B (zh) 2013-02-05 2013-02-05 光子晶体、彩膜基板、显示面板和显示装置
CN201310046222.2 2013-02-05

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WO2014121559A1 true WO2014121559A1 (fr) 2014-08-14

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Cited By (2)

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CN104900679A (zh) * 2015-06-08 2015-09-09 京东方科技集团股份有限公司 Oled显示面板及其制作方法、oled显示装置
US9793325B2 (en) 2015-06-08 2017-10-17 Boe Technology Group Co., Ltd. OLED display panel and the method for fabricating the same, and OLED display apparatus

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CN105093679B (zh) * 2015-08-20 2017-12-05 京东方科技集团股份有限公司 一种显示基板及其制备方法、显示面板和显示装置
CN105353556B (zh) * 2015-12-09 2017-12-29 深圳市华星光电技术有限公司 显示装置
CN106647015B (zh) * 2017-03-24 2019-07-09 京东方科技集团股份有限公司 一种显示装置
CN106842710B (zh) 2017-03-27 2019-05-03 京东方科技集团股份有限公司 一种背光模组、其制作方法以及显示装置
CN107255885B (zh) * 2017-08-16 2020-02-21 京东方科技集团股份有限公司 显示面板及其制造方法
CN107577374B (zh) * 2017-09-22 2021-01-26 京东方科技集团股份有限公司 一种手写板及其控制方法
CN108153041A (zh) * 2018-01-18 2018-06-12 京东方科技集团股份有限公司 一种显示面板、背光模组及显示装置
CN108181670B (zh) 2018-01-29 2019-11-29 京东方科技集团股份有限公司 一种显示装置、光源
CN108363249B (zh) * 2018-03-14 2023-06-13 京东方科技集团股份有限公司 一种显示面板、其驱动方法及显示装置
CN108919554B (zh) * 2018-07-26 2022-08-26 京东方科技集团股份有限公司 反射式显示基板及其制造方法、显示面板
CN109545832B (zh) 2018-11-29 2021-04-27 京东方科技集团股份有限公司 有机发光二极管显示基板及其制备方法、显示装置
CN109597246B (zh) * 2019-01-31 2021-12-21 京东方科技集团股份有限公司 背光模组及液晶显示装置

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US9793325B2 (en) 2015-06-08 2017-10-17 Boe Technology Group Co., Ltd. OLED display panel and the method for fabricating the same, and OLED display apparatus
CN104900679B (zh) * 2015-06-08 2018-04-06 京东方科技集团股份有限公司 Oled显示面板及其制作方法、oled显示装置

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