WO2016173106A1 - 彩膜基板及液晶显示面板 - Google Patents

彩膜基板及液晶显示面板 Download PDF

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Publication number
WO2016173106A1
WO2016173106A1 PCT/CN2015/082028 CN2015082028W WO2016173106A1 WO 2016173106 A1 WO2016173106 A1 WO 2016173106A1 CN 2015082028 W CN2015082028 W CN 2015082028W WO 2016173106 A1 WO2016173106 A1 WO 2016173106A1
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Prior art keywords
color
filter
transparent electrode
substrate
color filter
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PCT/CN2015/082028
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English (en)
French (fr)
Inventor
于晓平
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深圳市华星光电技术有限公司
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Priority to US14/763,521 priority Critical patent/US10031366B2/en
Publication of WO2016173106A1 publication Critical patent/WO2016173106A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/223—Absorbing filters containing organic substances, e.g. dyes, inks or pigments
    • 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
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/15—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 an electrochromic effect
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/153—Constructional details
    • G02F1/155—Electrodes
    • 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
    • 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 
    • G02F1/15—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 an electrochromic effect
    • G02F1/153—Constructional details
    • G02F1/157—Structural association of cells with optical devices, e.g. reflectors or 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/44—Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a color film substrate and a liquid crystal display panel.
  • LCD Liquid crystal display
  • PDA personal digital assistant
  • digital camera computer screen or laptop screen.
  • a liquid crystal display device includes a housing, a liquid crystal display panel disposed in the housing, and a backlight module disposed in the housing.
  • the structure of the liquid crystal display panel is mainly composed of a Thin Film Transistor Array Substrate (TFT Array Substrate), a color filter substrate (Color Filter, CF), and a liquid crystal layer disposed between the two substrates (Liquid Crystal). Layer).
  • TFT Array Substrate Thin Film Transistor Array Substrate
  • CF color filter substrate
  • Liquid Crystal Liquid Crystal
  • a scan line, a data line, a thin film transistor, and a pixel electrode are disposed on the thin film transistor array substrate; and a black matrix, a color filter, and a common electrode are disposed on the color filter substrate.
  • the working process of the liquid crystal display panel is: inputting a scan driving signal to the scan line, the TFT connected to the scan line is turned on, the data signal loaded by the data line is applied to the pixel electrode through the TFT, and the electric field control formed between the pixel electrode and the common electrode.
  • the rotation of the liquid crystal molecules, the rotating liquid crystal molecules refract the light of the backlight module, and the light passes through the color filter to present a color picture.
  • the color filter is a key component for colorization of the liquid crystal display device, and its function is to generate three primary colors of red (R), green (G), and blue (B) by filtering, and then mixing the three primary colors in different proportions. Various colors are generated to make the liquid crystal display panel appear colored.
  • the performance of the CF substrate (including color purity, aperture ratio, color difference, etc.) directly affects the color saturation, color contrast, display brightness and other properties of the liquid crystal display panel.
  • FIG. 1 is a schematic cross-sectional view of a conventional color filter substrate, including a base substrate 100 and a color film layer 110 disposed on the base substrate 100.
  • the color film layer 110 includes red arranged in a matrix.
  • the filter R, the green filter G, and the blue filter B, the red filter R, the green filter G, and the blue filter B are formed by a method such as a pigment dispersion method,
  • the black matrix 310 spaces the individual filters apart.
  • liquid crystal display devices capable of meeting different needs, such as high-intensity liquid crystal display devices for outdoor display and high-color liquid crystal display devices, still face challenges. An important factor is that existing color film substrates cannot simultaneously satisfy high brightness and high brightness. The need for color satiety.
  • Electrochromism refers to the phenomenon that the absorption wavelength of a material reversibly changes under the action of an external electric field. The essence is an electrochemical redox reaction, and the material exhibits a reversible change in color in appearance.
  • An electrochromic material can be transparent without an electric field, without color, and then an electrochromic material can display a specific color when an electric field is applied by an external source; or a specific color can be displayed without an electric field, when When an electric field is applied, the electrochromic material is transparent and does not exhibit color.
  • the electrochromic material has a memory function, and the color can be kept unchanged when the applied electric field is removed.
  • An electrochromic device utilizing such an electrochromic phenomenon has various advantages such as high reflectance without an external light source, high contrast, low driving voltage, and rich color, and excellent flexibility and portability. And can reduce the weight. Therefore, electrochromic materials have a certain potential in application to display devices and have attracted attention.
  • Another object of the present invention is to provide a liquid crystal display panel capable of conveniently switching between a high brightness display mode and a high color saturation display mode while satisfying the requirements of high brightness and high color saturation display.
  • the present invention firstly provides a color filter substrate, comprising a substrate substrate, a color film layer disposed on the substrate substrate, and a protective layer disposed on the color film layer;
  • the color filter layer includes a plurality of red filters, a green filter, a blue filter, and a color change filter arranged in a matrix, and the two sides of the color filter are respectively electrically connected thereto.
  • the material of the color-changing filter is an electrochromic material, and a color signal is applied to the color-changing filter through the first transparent electrode and the second transparent electrode to control a color change of the color-changing filter.
  • the color filter Before the voltage signal is applied to the color filter by the first transparent electrode and the second transparent electrode, the color filter is transparent; and the first transparent electrode and the second transparent electrode are opposite to each other. After the color filter is loaded with the voltage signal, the color filter is in a specific color other than red, green, and blue;
  • the color filter is colored in a specific color other than red, green, and blue; and the first transparent electrode is passed through After the voltage signal is applied to the color filter by the second transparent electrode, the change The color filter is transparent.
  • the chromaticity coordinate range of the specific color includes x (0.01 to 0.265), y (0.01 to 0.710).
  • the specific color is cyan.
  • the electrochromic material includes an n-type metal oxide, a viologen-based compound, a phthalate-based compound, a pyridine-based compound, a ruthenium-based compound, and a cathodic decolorizing conductive polymer.
  • One or more of the conductive polymers is an n-type metal oxide, a viologen-based compound, a phthalate-based compound, a pyridine-based compound, a ruthenium-based compound, and a cathodic decolorizing conductive polymer.
  • the red color filter, the green color filter, and the blue color filter are prepared by a pigment dispersion method, a dyeing method, or an inkjet method.
  • the first transparent electrode, the color change filter, and the second transparent electrode are sequentially stacked on the base substrate.
  • the invention also provides a color film substrate, comprising a substrate substrate, a color film layer disposed on the substrate substrate, and a protective layer disposed on the color film layer;
  • the color filter layer includes a plurality of red filters, a green filter, a blue filter, and a color change filter arranged in a matrix, and the two sides of the color filter are respectively electrically connected thereto.
  • the material of the color-changing filter is an electrochromic material, and the color change signal is applied to the color-changing filter through the first transparent electrode and the second transparent electrode to control the color change of the color-changing filter;
  • the electrochromic material comprises an n-type metal oxide, a viologen-based compound, a phthalate-based compound, a pyridine-based compound, a ruthenium-based compound, and a cathodic decolorization conductive polymer. And one or more; further comprising a p-type metal oxide, an aniline-based compound, an aminoguanidine-based compound, a rare earth element-based organic compound, a dibenzodioxin-based compound, a dye-based compound, and One or more of the anode decolorizing conductive polymers;
  • the red filter, the green filter, and the blue filter are prepared by a pigment dispersion method, a dyeing method, or an inkjet method.
  • the present invention also provides a liquid crystal display panel comprising oppositely disposed opposite substrates and an array substrate, and a liquid crystal layer filled between the opposite substrate and the array substrate;
  • a color film layer and a protective layer on the color film layer are disposed on the opposite substrate or the array substrate;
  • the color film layer includes a plurality of red filters, green filters, and blue arranged in a matrix Color filter a light sheet and a color-changing filter, wherein the two sides of the color-changing filter are respectively provided with a first transparent electrode and a second transparent electrode; and a black matrix arranges the plurality of red arranged in a matrix
  • the filter, the green filter, the blue filter, and the color filter are spaced apart;
  • the material of the color-changing filter is an electrochromic material, and a voltage signal is applied to the color-changing filter through the first transparent electrode and the second transparent electrode to control a color change of the color-changing filter, so that
  • the liquid crystal display panel conveniently realizes convenient switching of the high brightness display mode and the high color saturation display mode.
  • the color filter Before the voltage signal is applied to the color filter by the first transparent electrode and the second transparent electrode, the color filter is transparent; and the first transparent electrode and the second transparent electrode are opposite to each other. After the color filter is loaded with the voltage signal, the color filter is in a specific color other than red, green, and blue;
  • the color filter is colored in a specific color other than red, green, and blue; and the first transparent electrode is passed through After the voltage signal is applied to the color filter by the second transparent electrode, the color filter is transparent.
  • the chromaticity coordinate range of the specific color includes x (0.01 to 0.265), y (0.01 to 0.710).
  • the specific color is cyan.
  • the electrochromic material includes an n-type metal oxide, a viologen-based compound, a phthalate-based compound, a pyridine-based compound, a ruthenium-based compound, and a cathodic decolorizing conductive polymer.
  • a p-type metal oxide an aniline-based compound, an aminoguanidine-based compound, a rare earth element-based organic compound, a dibenzodioxin-based compound, a dye-based compound, and an anode bleaching
  • conductive polymers One or more of conductive polymers
  • the red color filter, the green color filter, and the blue color filter are prepared by a pigment dispersion method, a dyeing method, or an inkjet method.
  • the color film layer is disposed on the opposite substrate, and the first transparent electrode, the color changing filter, and the second transparent electrode are sequentially stacked on the opposite substrate; the array substrate is arranged in a matrix The plurality of thin film transistors are electrically connected to the pixel electrodes of the thin film transistors.
  • the color filter layer is disposed on the array substrate; the array substrate further includes a plurality of thin film transistors arranged in a matrix, and a pixel electrode electrically connected to the thin film transistor; the first transparent electrode and the color change The filter and the second transparent electrode are sequentially stacked; and the common substrate is provided on the opposite substrate.
  • a color film substrate and a liquid crystal display panel provided by the present invention are provided with a plurality of red filters, green filters, blue filters, and arranged in a matrix.
  • the color filter layer of the color-changing filter is provided with a first transparent electrode and a second transparent electrode electrically connected to each other on both sides of the color-changing filter, and the material of the color-changing filter is an electrochromic material.
  • the color change of the color filter can be controlled by applying a voltage signal to the color filter through the first transparent electrode and the second transparent electrode: when the color filter is transparent, the transmittance High, the liquid crystal display panel can achieve a high-brightness display mode to meet the needs of outdoor display; when the color-changing filter is in a specific color other than red, green, and blue, such as cyan, the liquid crystal display panel can be displayed in four colors. Improve the color performance of the panel to achieve a high-color display mode to meet the needs of high-color display. By controlling the loading voltage across the color filter, the liquid crystal display panel can be easily switched between the high brightness display mode and the high color saturation display mode, while meeting the requirements of high brightness and high color saturation display.
  • FIG. 1 is a schematic cross-sectional structural view of a conventional color film substrate
  • FIG. 2 is a schematic cross-sectional structural view of a color filter substrate of the present invention before a voltage signal is applied to a color filter;
  • FIG. 3 is a schematic cross-sectional structural view of a color filter substrate of the present invention after a voltage signal is applied to a color filter;
  • FIG. 5 is a cross-sectional structural view showing a first embodiment of a liquid crystal display panel of the present invention.
  • Fig. 6 is a cross-sectional structural view showing a second embodiment of the liquid crystal display panel of the present invention.
  • the present invention firstly provides a color filter substrate, comprising a substrate substrate 1 , a color film layer 11 disposed on the substrate substrate 1 , and a color film layer 11 disposed on the color film layer 11 .
  • Protective layer 32 is provided.
  • the color film layer 11 includes a plurality of red filters R, green filters G, blue filters B, and color changing filters C arranged in a matrix, and the two sides of the color changing filter C are respectively With a first transparent electrode 41 and a second transparent electrode 42 electrically connected; a black matrix 31 arranging the plurality of red filters R, green filters G, blue filters B, and The color filter C is spaced apart.
  • the material of the color-changing filter C is an electrochromic material, and the color filter is applied to the color-changing filter C through the first transparent electrode 41 and the second transparent electrode 42 to control the color-changing filter C.
  • the color changes.
  • the first transparent electrode 41 and the second transparent electrode 42 are not energized, that is, the color filter C is applied with voltage through the first transparent electrode 41 and the second transparent electrode 42.
  • the color-changing filter C has no color, is transparent, and has high light transmittance.
  • a high-brightness display mode can be realized, which satisfies the demand for outdoor display. As shown in FIG.
  • the first transparent electrode 41 and the second transparent electrode 42 are energized, that is, the color filter is applied to the color filter C through the first transparent electrode 41 and the second transparent electrode 42.
  • the color filter C is in a specific color other than red, green, and blue, such as cyan
  • four colors display such as red, green, blue, and blue, can be performed.
  • the color display realizes a high color saturation display mode.
  • the color film substrate of the invention enlarges the range of the screen display color, improves the color saturation and color expression ability of the screen display, and can satisfy the high color saturation. The demand shown.
  • the color-changing filter C may also be arranged to be transparent in the case of loading a voltage signal, not to display a color, and to be red when the voltage signal is not loaded. Specific colors other than green and blue.
  • the chromaticity coordinate range of the specific color includes x (0.01 to 0.265), y (0.01 to 0.710), and further, the specific color is cyan.
  • the electrochromic material includes an n-type metal oxide, a viologen-based compound, a phthalate-based compound, a pyridine-based compound, a ruthenium-based compound, and a cathodic decolorization conductive polymer.
  • a p-type metal oxide an aniline-based compound, an aminoguanidine-based compound, a rare earth element-based organic compound, a dibenzodioxin-based compound, a dye-based compound, an anode Decolorizing one or more of the conductive polymers.
  • the red color filter R, the green color filter G, and the blue color filter B can be prepared by a conventional pigment dispersion method, a dyeing method, or an inkjet method.
  • the color-changing filter C can be prepared in a suitable manner according to the characteristics of the electrochromic material used.
  • the first transparent electrode 41, the color change filter C, and the second transparent electrode 42 are sequentially stacked on the base substrate 1, and the A protective layer 32 is disposed on the color filter layer 11 to prevent the first transparent electrode 41 and the second transparent electrode 42 from drying on the pixel electrode and the common electrode when the color filter substrate is applied to the liquid crystal display panel. Disturb.
  • FIG. 5 shows a first embodiment of the liquid crystal display panel of the present invention, including the oppositely disposed opposite substrate 10 and the array substrate 2, and filled in the The liquid crystal layer 3 between the opposite substrate 10 and the array substrate 2.
  • the opposite substrate 10 is provided with a color film layer 11 and a protective layer 32 on the color film layer 11.
  • the color film layer 11 includes a plurality of red filters R, green filters G, blue filters B, and color changing filters C arranged in a matrix, and the two sides of the color changing filter C are respectively Providing a first transparent electrode 41 and a second transparent electrode 42 electrically connected thereto; a black matrix 31 arranging the plurality of red filters R, green filters G, and blue filters arranged in a matrix B, and the color changing filter C are spaced apart.
  • the array substrate 2 is provided with a plurality of thin film transistors 22 arranged in a matrix and pixel electrodes 21 electrically connected to the thin film transistors 22.
  • the material of the color-changing filter C is an electrochromic material, and the color filter is applied to the color-changing filter C through the first transparent electrode 41 and the second transparent electrode 42 to control the color-changing filter C.
  • the first transparent electrode 41 and the second transparent electrode 42 are not energized, that is, before the voltage signal is applied to the color filter C through the first transparent electrode 41 and the second transparent electrode 42
  • the color change filter C has no color, is transparent, and has high light transmittance.
  • the liquid crystal display panel can realize a high brightness display mode to meet the needs of outdoor display; when the first transparent electrode 41 and the first transparent electrode The second transparent electrode 42 is energized, that is, after the voltage signal is applied to the color filter C by the first transparent electrode 41 and the second transparent electrode 42, the color filter C is other than red, green, and blue.
  • the liquid crystal display panel can display four colors, such as red, green, blue, and cyan, to achieve a high-color display mode, improve the color saturation and color performance of the picture, and satisfy the high color.
  • the requirement of full display by controlling the loading voltage across the color filter C, the liquid crystal display panel can be easily switched between the high brightness display mode and the high color saturation display mode, while satisfying high brightness and high saturation display. Needs.
  • the color-changing filter C may also be arranged to be transparent in the case of loading a voltage signal, not to display a color, and to be red when the voltage signal is not loaded. Specific colors other than green and blue.
  • the chromaticity coordinate range of the specific color includes x (0.01 to 0.265), y (0.01 to 0.710), and further, the specific color is cyan.
  • the electrochromic material includes an n-type metal oxide, a viologen-based compound, a phthalate-based compound, a pyridine-based compound, a ruthenium-based compound, and a cathodic decolorization conductive polymer.
  • a p-type metal oxide an aniline-based compound, an aminoguanidine-based compound, a rare earth element-based organic compound, based on One or more of a compound of dibenzodioxin, a dye-based compound, and an anode decolorizing conductive polymer.
  • the red color filter R, the green color filter G, and the blue color filter B can be prepared by a conventional pigment dispersion method, a dyeing method, or an inkjet method.
  • the color-changing filter C can be prepared in a suitable manner according to the characteristics of the electrochromic material used.
  • first transparent electrode 41, the color-changing filter C, and the second transparent electrode 42 are sequentially stacked on the opposite substrate 10, and the color filter layer 11 is provided with a protective layer. 32.
  • the first transparent electrode 41 and the second transparent electrode 42 are prevented from interfering with the pixel electrode 21 and the common electrode in the liquid crystal display panel.
  • FIG. 6 shows a second embodiment of the liquid crystal display panel of the present invention, which is different from the first embodiment in that the color filter layer 11 is disposed on the array substrate 2, and the array substrate 2 is further disposed.
  • a plurality of thin film transistors 22 arranged in a matrix are electrically connected to the pixel electrodes 21 of the thin film transistors 22; the first transparent electrodes 41, the color changing filters C, and the second transparent electrodes 42 are sequentially stacked.
  • a common electrode 26 is disposed on the opposite substrate 10. The rest is the same as the first embodiment and will not be described again here.
  • the color film substrate and the liquid crystal display panel of the present invention are provided with a color film including a plurality of red filters, green filters, blue filters, and color changing filters arranged in a matrix.
  • the layer, the two sides of the color filter are respectively provided with a first transparent electrode and a second transparent electrode electrically connected thereto, and the material of the color filter is an electrochromic material.
  • the color change of the color filter can be controlled by applying a voltage signal to the color filter through the first transparent electrode and the second transparent electrode: when the color filter is transparent, the transmittance is high.
  • the liquid crystal display panel can realize a high-brightness display mode to meet the needs of outdoor display; when the color-changing filter has a specific color other than red, green, and blue, such as cyan, the liquid crystal display panel can be displayed in four colors. Improve the color performance of the panel and achieve a high-color display mode to meet the needs of high-color display. By controlling the loading voltage across the color filter, the liquid crystal display panel can be easily switched between the high brightness display mode and the high color saturation display mode, while meeting the requirements of high brightness and high color saturation display.

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Abstract

提供了一种彩膜基板及液晶显示面板，二者均设置了包括呈矩阵排列的多个红色、绿色、蓝色滤光片(R、G、B)、及变色滤光片(C)的彩膜层(11)，变色滤光片(C)的两侧分别设有与其电性连接的第一透明电极(41)与第二透明电极(42)，且变色滤光片(C)的材料为电致变色材料。通过第一透明电极(41)与第二透明电极(42)对变色滤光片(C)加载电压信号能够控制变色滤光片(C)的颜色变化，方便地实现高亮度及高色饱显示：当变色滤光片(C)呈透明状时，穿透率高，满足高亮度显示的需求；当变色滤光片(C)呈红、绿、蓝以外的特定颜色，如青色时，实现四色显示，提高面板的色彩表现能力，满足高色饱显示的需求。

Description

彩膜基板及液晶显示面板 技术领域
本发明涉及显示技术领域，尤其涉及一种彩膜基板及液晶显示面板。
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。如：液晶电视、移动电话、个人数字助理(PDA)、数字相机、计算机屏幕或笔记本电脑屏幕等。
通常液晶显示装置包括壳体、设于壳体内的液晶显示面板及设于壳体内的背光模组(Backlight module)。液晶显示面板的结构主要是由一薄膜晶体管阵列基板(Thin Film Transistor Array Substrate，TFT Array Substrate)、一彩色滤光片基板(Color Filter，CF)、以及配置于两基板间的液晶层(Liquid Crystal Layer)所构成。一般的，在薄膜晶体管阵列基板上设置有扫描线、数据线、薄膜晶体管及像素电极；在彩色滤光片基板上设置有黑色矩阵、彩色滤光片及公共电极。液晶显示面板的工作过程为：对扫描线输入扫描驱动信号，与扫描线连接的TFT导通，数据线加载的数据信号通过TFT施加到像素电极上，像素电极与公共电极之间形成的电场控制液晶分子的旋转，旋转的液晶分子对背光模组的光线进行折射，光线再穿过彩色滤光片呈现出彩色画面。
彩色滤光片是液晶显示装置实现彩色化的关键部件，其作用原理是利用滤光的方式产生红(R)，绿(G)，蓝(B)三原色，再将三原色以不同的比例混合而生成各种色彩，使液晶显示面板显现彩色。CF基板的性能好坏(包括色纯度，开口率，色差等)直接影响到液晶显示面板的色彩饱和度，色彩对比度，显示亮度等性能。
请参阅图1，为一种现有彩膜基板的剖面结构示意图，包括衬底基板100、及设于衬底基板100上的彩膜层110，所述彩膜层110包括呈矩阵排列的红色滤光片R、绿色滤光片G、及蓝色滤光片B，所述红色滤光片R、绿色滤光片G、及蓝色滤光片B由颜料分散法等方法制成，一黑色矩阵310将各个滤光片间隔开。目前，能满足不同需求的液晶显示装置，如户外显示的高亮度液晶显示装置以及高色饱的液晶显示装置仍面临着挑战，一个重要因素就是现有的彩膜基板不能同时满足高亮度及高色饱的需求。虽然已有通过增加白色(W)矩阵得到RGBW的显示矩阵的方法来获得高亮度 液晶显示装置，但是在增加亮度的同时，会减弱色彩的饱和度，无法同时满足高亮度和高色饱显示的需求。
电致变色是指材料的吸收波长在外加电场作用下产生可逆变化的现象，其实质是一种电化学氧化还原反应，反应后材料在外观上表现出颜色的可逆变化。电致变色材料可以在没有电场的情况下呈透明状、不具有颜色，然后通过外部源施加电场时，电致变色材料可以显示特定的颜色；或者在没有电场的情况下显示特定的颜色，当施加电场时，电致变色材料呈透明状、不显示颜色。同时，电致变色材料具有记忆功能，在撤去外加电场作用时，可以保持颜色不变。利用这种电致变色现象的电致变色装置具有各种优点，例如具有高反射率而不需要外部光源，具有对比度高，驱动电压低，色彩丰富的优点，具有优异的柔性和可携带性，并可以减轻重量。因此，电致变色材料在应用于显示装置方面具有一定的潜能而备受关注。
发明内容
本发明的目的在于提供一种彩膜基板，能够控制滤光片的颜色变化，同时具有高亮度及高色饱度。
本发明的另一目的在于提供一种液晶显示面板，能够方便地实现高亮度显示模式与高色饱显示模式切换，同时满足高亮度及高色饱显示的需求。
为实现上述目的，本发明首先提供一种彩膜基板，包括衬底基板、设于所述衬底基板上的彩膜层、及设于所述彩膜层上的保护层；
所述彩膜层包括呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片，所述变色滤光片的两侧分别设有与其电性连接的第一透明电极、与第二透明电极；一黑色矩阵将所述呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片间隔开；
所述变色滤光片的材料为电致变色材料，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号，控制所述变色滤光片的颜色变化。
通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号前，所述变色滤光片呈透明状；通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号后，所述变色滤光片呈红、绿、蓝以外的特定颜色；
或者通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号前，所述变色滤光片呈红、绿、蓝以外的特定颜色；通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号后，所述变 色滤光片呈透明状。
所述特定颜色的色度坐标范围包括x(0.01～0.265)，y(0.01～0.710)。
所述特定颜色为青色。
所述电致变色材料包括n型金属氧化物、基于紫罗碱类的化合物、基于邻苯二甲酸酯的化合物、基于吡啶的化合物、基于蒽醌的化合物、及阴极脱色导电聚合物中的一种或多种；还包括p型金属氧化物、基于苯胺的化合物、基于氨基醌的化合物、基于稀土元素的有机化合物、基于二苯并二噁英的化合物、基于染料的化合物、及阳极脱色导电聚合物中的一种或多种。
所述红色滤光片、绿色滤光片、及蓝色滤光片采用颜料分散法、染色法、或喷墨法制备。
所述第一透明电极、变色滤光片、及第二透明电极在衬底基板上依次层叠设置。
本发明还提供一种彩膜基板，包括衬底基板、设于所述衬底基板上的彩膜层、及设于所述彩膜层上的保护层；
所述彩膜层包括呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片，所述变色滤光片的两侧分别设有与其电性连接的第一透明电极、与第二透明电极；一黑色矩阵将所述呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片间隔开；
所述变色滤光片的材料为电致变色材料，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号，控制所述变色滤光片的颜色变化；
其中，所述电致变色材料包括n型金属氧化物、基于紫罗碱类的化合物、基于邻苯二甲酸酯的化合物、基于吡啶的化合物、基于蒽醌的化合物、及阴极脱色导电聚合物中的一种或多种；还包括p型金属氧化物、基于苯胺的化合物、基于氨基醌的化合物、基于稀土元素的有机化合物、基于二苯并二噁英的化合物、基于染料的化合物、及阳极脱色导电聚合物中的一种或多种；
其中，所述红色滤光片、绿色滤光片、及蓝色滤光片采用颜料分散法、染色法、或喷墨法制备。
本发明还提供一种液晶显示面板，包括相对设置的对向基板与阵列基板、及填充于所述对向基板与阵列基板之间的液晶层；
所述对向基板或阵列基板上设有彩膜层、及位于所述彩膜层上的保护层；所述彩膜层包括呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤 光片、及变色滤光片，所述变色滤光片的两侧分别设有与其电性连接的第一透明电极、与第二透明电极；一黑色矩阵将所述呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片间隔开；
所述变色滤光片的材料为电致变色材料，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号，控制所述变色滤光片的颜色变化，使得液晶显示面板方便地实现高亮度显示模式与高色饱显示模式的方便切换。
通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号前，所述变色滤光片呈透明状；通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号后，所述变色滤光片呈红、绿、蓝以外的特定颜色；
或者通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号前，所述变色滤光片呈红、绿、蓝以外的特定颜色；通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号后，所述变色滤光片呈透明状。
所述特定颜色的色度坐标范围包括x(0.01～0.265)，y(0.01～0.710)。
所述特定颜色为青色。
所述电致变色材料包括n型金属氧化物、基于紫罗碱类的化合物、基于邻苯二甲酸酯的化合物、基于吡啶的化合物、基于蒽醌的化合物、及阴极脱色导电聚合物中的一种或多种；还包括p型金属氧化物、基于苯胺的化合物、基于氨基醌的化合物、基于稀土元素的有机化合物、基于二苯并二噁英的化合物、基于染料的化合物、及阳极脱色导电聚合物中的一种或多种；
所述红色滤光片、绿色滤光片、及蓝色滤光片采用颜料分散法、染色法、或喷墨法制备。
所述彩膜层设于所述对向基板上，所述第一透明电极、变色滤光片、及第二透明电极在对向基板上依次层叠设置；所述阵列基板上设有呈矩阵排列的多个薄膜晶体管、及电性连接于所述薄膜晶体管的像素电极。
所述彩膜层设于所述阵列基板上；所述阵列基板上还设有呈矩阵排列的多个薄膜晶体管、电性连接于所述薄膜晶体管的像素电极；所述第一透明电极、变色滤光片、及第二透明电极依次层叠设置；所述对向基板上设有公共电极。
本发明的有益效果：本发明提供的一种彩膜基板及液晶显示面板，均设置了包括呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及 变色滤光片的彩膜层，变色滤光片的两侧分别设有与其电性连接的第一透明电极、与第二透明电极，且变色滤光片的材料为电致变色材料。通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号能够控制所述变色滤光片的颜色变化：当所述变色滤光片呈透明状时，穿透率高，可以使液晶显示面板实现高亮度的显示模式，满足户外显示的需求；当变色滤光片呈红、绿、蓝以外的特定颜色，如青色时，可以使液晶显示面板进行四色显示，提高面板的色彩表现能力，实现高色饱的显示模式，满足高色饱显示的需求。通过控制所述变色滤光片两端的加载电压，可以使液晶显示面板实现高亮度显示模式与高色饱显示模式的方便切换，同时满足高亮度及高色饱显示的需求。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
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为一种现有彩膜基板的剖面结构示意图；
图2为本发明的彩膜基板对变色滤光片加载电压信号前的剖面结构示意图；
图3为本发明的彩膜基板对变色滤光片加载电压信号后的剖面结构示意图；
图4为本发明的彩膜基板的CIE1931xy色度图；
图5为本发明的液晶显示面板第一实施例的剖面结构示意图；
图6为本发明的液晶显示面板第二实施例的剖面结构示意图。
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2、图3，本发明首先提供一种彩膜基板，包括衬底基板1、设于所述衬底基板1上的彩膜层11、及设于所述彩膜层11上的保护层32。
所述彩膜层11包括呈矩阵排列的多个红色滤光片R、绿色滤光片G、蓝色滤光片B、及变色滤光片C，所述变色滤光片C的两侧分别设有与其 电性连接的第一透明电极41、与第二透明电极42；一黑色矩阵31将所述呈矩阵排列的多个红色滤光片R、绿色滤光片G、蓝色滤光片B、及变色滤光片C间隔开。
所述变色滤光片C的材料为电致变色材料，通过所述第一透明电极41、与第二透明电极42对所述变色滤光片C加载电压信号，控制所述变色滤光片C的颜色变化。如图2所示，未对所述第一透明电极41、与第二透明电极42通电，即通过所述第一透明电极41、与第二透明电极42对所述变色滤光片C加载电压信号前，所述变色滤光片C不具有颜色，呈透明状，光线的穿透率高，将该彩膜基板应用于液晶显示面板时可以实现高亮度的显示模式，满足户外显示的需求。如图3所示，对所述第一透明电极41、与第二透明电极42通电，即通过所述第一透明电极41、与第二透明电极42对所述变色滤光片C加载电压信号后，所述变色滤光片C呈红、绿、蓝以外的特定颜色，如青色，将该彩膜基板应用于液晶显示面板时，可进行四色显示，如红、绿、蓝、青四色显示，实现高色饱的显示模式，如图4所示，采用本发明的彩膜基板扩大了画面显示色彩的范围，提高了画面显示的色彩饱和度和色彩表现能力，能够满足高色饱显示的需求。
当然，根据电致变色材料特性的不同，所述变色滤光片C也可以设置为在加载电压信号的情况下呈透明状、不显示颜色，而在不加载电压信号的情况下，呈红、绿、蓝以外的特定颜色。
优选的，所述特定颜色的色度坐标范围包括x(0.01～0.265)，y(0.01～0.710)，进一步的，所述特定颜色为青色。
具体地，所述电致变色材料包括n型金属氧化物、基于紫罗碱类的化合物、基于邻苯二甲酸酯的化合物、基于吡啶的化合物、基于蒽醌的化合物、阴极脱色导电聚合物中的一种或多种；还包括p型金属氧化物、基于苯胺的化合物、基于氨基醌的化合物、基于稀土元素的有机化合物、基于二苯并二噁英的化合物、基于染料的化合物、阳极脱色导电聚合物中的一种或多种。
所述红色滤光片R、绿色滤光片G、及蓝色滤光片B可采用现有的颜料分散法、染色法、或喷墨法等方式制备。所述变色滤光片C可以根据所采用的电致变色材料的特性，选择合适的方式进行制备。
值得一提的是，在本发明的彩膜基板中，所述第一透明电极41、变色滤光片C、及第二透明电极42在所述衬底基板1上依次层叠设置，且所述彩膜层11上设有保护层32，避免了将该彩膜基板应用于液晶显示面板时，所述第一透明电极41、与第二透明电极42对像素电极、及公共电极造成干 扰。
基于同一发明构思，本发明还提供一种液晶显示面板，图5所示为本发明的液晶显示面板的第一实施例，包括相对设置的对向基板10与阵列基板2、及填充于所述对向基板10与阵列基板2之间的液晶层3。所述对向基板10上设有彩膜层11及位于所述彩膜层11上的保护层32。所述彩膜层11包括呈矩阵排列的多个红色滤光片R、绿色滤光片G、蓝色滤光片B、及变色滤光片C，所述变色滤光片C的两侧分别设有与其电性连接的第一透明电极41、与第二透明电极42；一黑色矩阵31将所述呈矩阵排列的多个红色滤光片R、绿色滤光片G、蓝色滤光片B、及变色滤光片C间隔开。
进一步地，所述第一透明电极41、变色滤光片C、及第二透明电极42在对向基板10上依次层叠设置。所述阵列基板2上设有呈矩阵排列的多个薄膜晶体管22、及电性连接于所述薄膜晶体管22的像素电极21。
所述变色滤光片C的材料为电致变色材料，通过所述第一透明电极41、与第二透明电极42对所述变色滤光片C加载电压信号，控制所述变色滤光片C的颜色变化。当未对所述第一透明电极41、与第二透明电极42通电，即通过所述第一透明电极41、与第二透明电极42对所述变色滤光片C加载电压信号前，所述变色滤光片C不具有颜色，呈透明状，光线的穿透率高，该液晶显示面板可以实现高亮度的显示模式，满足户外显示的需求；当对所述第一透明电极41、与第二透明电极42通电，即通过所述第一透明电极41、与第二透明电极42对所述变色滤光片C加载电压信号后，所述变色滤光片C呈红、绿、蓝以外的特定颜色，如青色，该液晶显示面板可进行四色显示，如红、绿、蓝、青四色显示，实现高色饱的显示模式，提高画面的色彩饱和度和色彩表现能力，满足高色饱显示的需求；通过控制所述变色滤光片C两端的加载电压，可以使液晶显示面板实现高亮度显示模式与高色饱显示模式的方便切换，同时满足高亮度及高色饱显示的需求。
当然，根据电致变色材料特性的不同，所述变色滤光片C也可以设置为在加载电压信号的情况下呈透明状、不显示颜色，而在不加载电压信号的情况下，呈红、绿、蓝以外的特定颜色。
优选的，所述特定颜色的色度坐标范围包括x(0.01～0.265)，y(0.01～0.710)，进一步的，所述特定颜色为青色。
具体地，所述电致变色材料包括n型金属氧化物、基于紫罗碱类的化合物、基于邻苯二甲酸酯的化合物、基于吡啶的化合物、基于蒽醌的化合物、阴极脱色导电聚合物中的一种或多种；还包括p型金属氧化物、基于苯胺的化合物、基于氨基醌的化合物、基于稀土元素的有机化合物、基于 二苯并二噁英的化合物、基于染料的化合物、阳极脱色导电聚合物中的一种或多种。
所述红色滤光片R、绿色滤光片G、及蓝色滤光片B可采用现有的颜料分散法、染色法、或喷墨法等方式制备。所述变色滤光片C可以根据所采用的电致变色材料的特性，选择合适的方式进行制备。
值得一提的是，所述第一透明电极41、变色滤光片C、及第二透明电极42在所述对向基板10上依次层叠设置，且所述彩膜层11上设有保护层32，避免了所述第一透明电极41、与第二透明电极42对该液晶显示面板中的像素电极21、及公共电极造成干扰。
图6所示为本发明的液晶显示面板的第二实施例，其与第一实施例的区别在于：所述彩膜层11设于所述阵列基板2上，所述阵列基板2上还设有呈矩阵排列的多个薄膜晶体管22、电性连接于所述薄膜晶体管22的像素电极21；所述第一透明电极41、变色滤光片C、及第二透明电极42依次层叠设置。所述对向基板10上设有公共电极26。其余部分与第一实施例相同，此处不再赘述。
综上所述，本发明的彩膜基板及液晶显示面板，均设置了包括呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片的彩膜层，变色滤光片的两侧分别设有与其电性连接的第一透明电极、与第二透明电极，且变色滤光片的材料为电致变色材料。通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号能够控制所述变色滤光片的颜色变化：当所述变色滤光片呈透明状，穿透率高，可以使液晶显示面板实现高亮度的显示模式，满足户外显示的需求；当所述变色滤光片呈红、绿、蓝以外的特定颜色，如青色时，可以使液晶显示面板进行四色显示，提高面板的色彩表现能力，实现高色饱的显示模式，满足高色饱显示的需求。通过控制所述变色滤光片两端的加载电压，可以使液晶显示面板实现高亮度显示模式与高色饱显示模式的方便切换，同时满足高亮度及高色饱显示的需求。
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 (19)

  1. 一种彩膜基板，包括衬底基板、设于所述衬底基板上的彩膜层、及设于所述彩膜层上的保护层；
    所述彩膜层包括呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片，所述变色滤光片的两侧分别设有与其电性连接的第一透明电极、与第二透明电极；一黑色矩阵将所述呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片间隔开；
    所述变色滤光片的材料为电致变色材料，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号，控制所述变色滤光片的颜色变化。
  2. 如权利要求1所述的彩膜基板，其中，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号前，所述变色滤光片呈透明状；通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号后，所述变色滤光片呈红、绿、蓝以外的特定颜色；
    或者，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号前，所述变色滤光片呈红、绿、蓝以外的特定颜色；通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号后，所述变色滤光片呈透明状。
  3. 如权利要求2所述的彩膜基板，其中，所述特定颜色的色度坐标范围包括x(0.01～0.265)，y(0.01～0.710)。
  4. 如权利要求3所述的彩膜基板，其中，所述特定颜色为青色。
  5. 如权利要求1所述的彩膜基板，其中，所述电致变色材料包括n型金属氧化物、基于紫罗碱类的化合物、基于邻苯二甲酸酯的化合物、基于吡啶的化合物、基于蒽醌的化合物、及阴极脱色导电聚合物中的一种或多种；还包括p型金属氧化物、基于苯胺的化合物、基于氨基醌的化合物、基于稀土元素的有机化合物、基于二苯并二噁英的化合物、基于染料的化合物、及阳极脱色导电聚合物中的一种或多种。
  6. 如权利要求1所述的彩膜基板，其中，所述红色滤光片、绿色滤光片、及蓝色滤光片采用颜料分散法、染色法、或喷墨法制备。
  7. 如权利要求1所述的彩膜基板，其中，所述第一透明电极、变色滤光片、及第二透明电极在衬底基板上依次层叠设置。
  8. 一种彩膜基板，包括衬底基板、设于所述衬底基板上的彩膜层、及 设于所述彩膜层上的保护层；
    所述彩膜层包括呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片，所述变色滤光片的两侧分别设有与其电性连接的第一透明电极、与第二透明电极；一黑色矩阵将所述呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片间隔开；
    所述变色滤光片的材料为电致变色材料，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号，控制所述变色滤光片的颜色变化；
    其中，所述电致变色材料包括n型金属氧化物、基于紫罗碱类的化合物、基于邻苯二甲酸酯的化合物、基于吡啶的化合物、基于蒽醌的化合物、及阴极脱色导电聚合物中的一种或多种；还包括p型金属氧化物、基于苯胺的化合物、基于氨基醌的化合物、基于稀土元素的有机化合物、基于二苯并二噁英的化合物、基于染料的化合物、及阳极脱色导电聚合物中的一种或多种；
    其中，所述红色滤光片、绿色滤光片、及蓝色滤光片采用颜料分散法、染色法、或喷墨法制备。
  9. 如权利要求8所述的彩膜基板，其中，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号前，所述变色滤光片呈透明状；通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号后，所述变色滤光片呈红、绿、蓝以外的特定颜色；
    或者，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号前，所述变色滤光片呈红、绿、蓝以外的特定颜色；通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号后，所述变色滤光片呈透明状。
  10. 如权利要求9所述的彩膜基板，其中，所述特定颜色的色度坐标范围包括x(0.01～0.265)，y(0.01～0.710)。
  11. 如权利要求10所述的彩膜基板，其中，所述特定颜色为青色。
  12. 如权利要求8所述的彩膜基板，其中，所述第一透明电极、变色滤光片、及第二透明电极在衬底基板上依次层叠设置。
  13. 一种液晶显示面板，包括相对设置的对向基板与阵列基板、及填充于所述对向基板与阵列基板之间的液晶层；
    所述对向基板或阵列基板上设有彩膜层、及位于所述彩膜层上的保护层；所述彩膜层包括呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片，所述变色滤光片的两侧分别设有与其电性连接的第 一透明电极、与第二透明电极；一黑色矩阵将所述呈矩阵排列的多个红色滤光片、绿色滤光片、蓝色滤光片、及变色滤光片间隔开；
    所述变色滤光片的材料为电致变色材料，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号，控制所述变色滤光片的颜色变化，使得液晶显示面板方便地实现高亮度显示模式与高色饱显示模式的方便切换。
  14. 如权利要求13所述的液晶显示面板，其中，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号前，所述变色滤光片呈透明状；通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号后，所述变色滤光片呈红、绿、蓝以外的特定颜色；
    或者，通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号前，所述变色滤光片呈红、绿、蓝以外的特定颜色；通过所述第一透明电极、与第二透明电极对所述变色滤光片加载电压信号后，所述变色滤光片呈透明状。
  15. 如权利要求14所述的液晶显示面板，其中，所述特定颜色的色度坐标范围包括x(0.01～0.265)，y(0.01～0.710)。
  16. 如权利要求15所述的液晶显示面板，其中，所述特定颜色为青色。
  17. 如权利要求13所述的液晶显示面板，其中，所述电致变色材料包括n型金属氧化物、基于紫罗碱类的化合物、基于邻苯二甲酸酯的化合物、基于吡啶的化合物、基于蒽醌的化合物、及阴极脱色导电聚合物中的一种或多种；还包括p型金属氧化物、基于苯胺的化合物、基于氨基醌的化合物、基于稀土元素的有机化合物、基于二苯并二噁英的化合物、基于染料的化合物、及阳极脱色导电聚合物中的一种或多种；
    所述红色滤光片、绿色滤光片、及蓝色滤光片采用颜料分散法、染色法、或喷墨法制备。
  18. 如权利要求13所述的液晶显示面板，其中，所述彩膜层设于所述对向基板上，所述第一透明电极、变色滤光片、及第二透明电极在对向基板上依次层叠设置；所述阵列基板上设有呈矩阵排列的多个薄膜晶体管、及电性连接于所述薄膜晶体管的像素电极。
  19. 如权利要求13所述的液晶显示面板，其中，所述彩膜层设于所述阵列基板上；所述阵列基板上还设有呈矩阵排列的多个薄膜晶体管、电性连接于所述薄膜晶体管的像素电极；所述第一透明电极、变色滤光片、及第二透明电极依次层叠设置；所述对向基板上设有公共电极。
PCT/CN2015/082028 2015-04-28 2015-06-23 彩膜基板及液晶显示面板 WO2016173106A1 (zh)

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