WO2017045236A1 - 液晶显示装置 - Google Patents

液晶显示装置 Download PDF

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Publication number
WO2017045236A1
WO2017045236A1 PCT/CN2015/091714 CN2015091714W WO2017045236A1 WO 2017045236 A1 WO2017045236 A1 WO 2017045236A1 CN 2015091714 W CN2015091714 W CN 2015091714W WO 2017045236 A1 WO2017045236 A1 WO 2017045236A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
crystal display
light
blue
red
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/091714
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English (en)
French (fr)
Inventor
王亚楠
马小龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/786,553 priority Critical patent/US9733518B2/en
Publication of WO2017045236A1 publication Critical patent/WO2017045236A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G—PHYSICS
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    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
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    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
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    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
    • 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
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
    • 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
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/05—Function characteristic wavelength dependent

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a liquid crystal display device.
  • 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.
  • the backlight module provides a light source for the liquid crystal display panel, and the liquid crystal display panel further controls the throughput of the light by signal driving, and filters the passing light into three colors of red, green and blue through the colored photoresist, and passes the light intensity of the three primary colors. Adjust the match to achieve different brightness and color display.
  • FIG. 1 is a schematic cross-sectional view of a conventional liquid crystal display panel
  • FIG. 2 is a perspective exploded view of the liquid crystal display panel of FIG. 1.
  • the liquid crystal display panel includes a CF substrate 100 and CF.
  • the TFT substrate 200 disposed opposite to the substrate 100, a liquid crystal layer 300 disposed between the CF substrate 100 and the TFT substrate 200, an upper polarizing plate 400 disposed above the CF substrate 100, and a lower portion of the lower substrate 200 a lower polarizing plate 500 and a frame glue (not shown) provided at an edge between the CF substrate 100 and the TFT substrate 200;
  • the CF substrate 100 includes a glass substrate 110 and a color provided on the glass substrate 110 a photoresist layer 120 and a black matrix 130, and a photoresist spacer 140 disposed above the black matrix 120 and corresponding to the black matrix 120.
  • the TFT substrate 200 includes a glass substrate 210 and is disposed on the glass substrate.
  • the working process of the liquid crystal display panel is to control the polarization state of the transmitted light by the rotation of the liquid crystal molecules in the pixel area of the TFT substrate 200 and the CF substrate 100, and to match the upper sides of the TFT substrate 200 and the CF substrate 100.
  • the lower polarizing plates 400 and 500 achieve the purpose of controlling the amount of light transmission; the CF substrate 100 filters and absorbs the light transmitted through the liquid crystal layer 300, so that the light of each pixel region is composed of three primary colors after being emitted from the liquid crystal display panel ( Or four colors).
  • the CF substrate 100 can only pass light of a part of the wavelength band, and the light is polarized by the upper polarizer 400. Therefore, the light intensity after passing through the CF substrate 100 is attenuated to about 33%, which is the current light efficiency of the LCD. One of the reasons for the low.
  • Quantum dots are based on the principle of quantum confinement. For a given quantum dot, its wavelength of illumination is uniquely determined at a specific size, and its structural characteristics determine the frequency band of its emitted light is extremely narrow, full width at half (full width at half The maximum, FWHM) can reach 20nm, and the emitted light of three different bands of RGB can be obtained by adjusting the composite size of the material.
  • the excellent luminescence properties of the quantum dots can be used to optimize the luminescence spectrum to obtain high color gamut display and high color purity, which greatly contributes to the improvement of display performance.
  • An object of the present invention is to provide a liquid crystal display device having a simple structure and a color thin resist layer and an upper polarizer as compared with a conventional liquid crystal display panel, which has a simple structure and low manufacturing cost. At the same time, the color display quality of the liquid crystal display panel is good, and the light transmittance is high, which effectively improves the light energy utilization rate and display performance of the liquid crystal display device.
  • the present invention provides a liquid crystal display device including a liquid crystal display panel and a backlight;
  • the liquid crystal display panel includes an upper substrate, a lower substrate disposed opposite the upper substrate, a polarizing plate disposed under the lower substrate, and a frame adhesive disposed at an edge between the upper and lower substrates;
  • the upper substrate includes a first transparent substrate, a black matrix disposed on the first transparent substrate, and a color blocking wall disposed above the black matrix and disposed corresponding to the black matrix;
  • the black matrix includes a plurality of horizontal light-shielding strips and a plurality of longitudinal light-shielding strips arranged perpendicularly to the plurality of horizontal light-shielding strips;
  • the color-blocking wall includes two corresponding two lateral light-shielding strips respectively corresponding to the outermost side a horizontal color blocking wall and a plurality of longitudinal color blocking walls respectively corresponding to the plurality of longitudinal light shielding strips, wherein the two horizontal color blocking walls and the plurality of longitudinal color blocking walls are encircled on the first transparent substrate Strip groove
  • the plurality of strip grooves include a red strip groove, a green strip groove, and a blue strip groove; the red strip groove, the green strip groove, and the blue strip groove are respectively provided with different mixing
  • the liquid crystal material emits red, green and blue light respectively under the illumination of the backlight;
  • the lower substrate includes a second transparent substrate, a TFT layer disposed on the second transparent substrate, and an alignment film disposed on the TFT layer.
  • the mixed liquid crystal material in the red strip groove is a mixture of a liquid crystal, a dichroic dye, and a red light quantum dot
  • the mixture in the green strip groove The liquid crystal material is a mixture of liquid crystal, dichroic dye, and green light quantum dots
  • the mixed liquid crystal material in the blue strip groove is a mixture of a liquid crystal, a dichroic dye, and a blue quantum dot; a red light quantum dot in the red strip groove, a green light quantum dot in the green strip groove, and
  • the blue quantum dots in the blue strip grooves emit red, green, and blue light respectively under the illumination of blue-violet light or laser light.
  • the mixed liquid crystal material in the red strip groove is a mixture of a liquid crystal, a dichroic dye, and a red light quantum dot
  • the mixed liquid crystal material in the green strip groove is a mixture of a liquid crystal, a dichroic dye, and a green light quantum dot
  • the mixed liquid crystal material in the blue strip groove is a mixture of a liquid crystal and a dichroic dye
  • the green light quantum dots in the strip grooves emit red and green light respectively under the illumination of blue light; the quantum dots are not disposed in the blue strip grooves, so that blue light is transmitted and blue light is emitted.
  • the upper substrate further includes a common electrode layer disposed between the first transparent substrate and the black matrix; the lower substrate further includes a TFT layer disposed on the TFT layer A pixel electrode layer between the alignment film and the alignment film.
  • the bottom of the strip groove of the upper substrate is provided with an alignment film.
  • the lower substrate further includes a pixel electrode layer and a common electrode layer disposed between the TFT layer and the alignment film
  • the upper substrate further includes An alignment film on the first transparent substrate.
  • the mixed liquid crystal materials in the red strip groove, the green strip groove, and the blue strip groove are uniformly mixed by a physical method.
  • the dichroic dye is an azo compound or a quinone compound.
  • the transmission axis direction of the polarizer is parallel to the alignment direction when the liquid crystal molecules are powered.
  • the transmission axis direction of the polarizer is parallel or perpendicular to a horizontal alignment direction when liquid crystal molecules are not powered.
  • the present invention also provides a liquid crystal display device comprising a liquid crystal display panel and a backlight;
  • the liquid crystal display panel includes an upper substrate, a lower substrate disposed opposite the upper substrate, a polarizing plate disposed under the lower substrate, and a frame adhesive disposed at an edge between the upper and lower substrates;
  • the upper substrate includes a first transparent substrate, a black matrix disposed on the first transparent substrate, and a color blocking wall disposed above the black matrix and disposed corresponding to the black matrix;
  • the black matrix includes a plurality of horizontal light-shielding strips and a plurality of longitudinal light-shielding strips arranged perpendicularly to the plurality of horizontal light-shielding strips;
  • the color-blocking wall includes two corresponding two lateral light-shielding strips respectively corresponding to the outermost side a horizontal color blocking wall and a plurality of longitudinal color blocking walls respectively corresponding to the plurality of longitudinal light shielding strips, wherein the two horizontal color blocking walls and the plurality of longitudinal color blocking walls are encircled on the first transparent substrate Strip groove
  • the plurality of strip grooves include a red strip groove, a green strip groove, and a blue strip groove; the red strip groove, the green strip groove, and the blue strip groove are respectively provided with different mixing
  • the liquid crystal material emits red, green and blue light respectively under the illumination of the backlight;
  • the lower substrate includes a second transparent substrate, a TFT layer disposed on the second transparent substrate, and an alignment film disposed on the TFT layer;
  • the mixed liquid crystal material in the red strip groove is a mixture of a liquid crystal, a dichroic dye, and a red light quantum dot
  • the green strip groove The mixed liquid crystal material is a mixture of a liquid crystal, a dichroic dye, and a green light quantum dot
  • the mixed liquid crystal material in the blue strip groove is a mixture of a liquid crystal, a dichroic dye, and a blue quantum dot
  • the red strip The red light quantum dots in the shaped grooves, the green light quantum dots in the green strip grooves, and the blue quantum dots in the blue strip grooves respectively emit red, green and blue light under the illumination of blue violet light or laser light;
  • the mixed liquid crystal material in the red strip groove is a mixture of a liquid crystal, a dichroic dye, and a red light quantum dot
  • the mixed liquid crystal in the green strip groove The material is a mixture of liquid crystal, dichroic dye, and green light quantum dots.
  • the mixed liquid crystal material in the blue strip groove is a mixture of liquid crystal and dichroic dye; red light quantum dots in the red strip groove, The green light quantum dots in the green strip-shaped grooves respectively emit red and green light under the illumination of the blue light; the quantum dots are not disposed in the blue strip-shaped grooves, so that the blue light is transmitted and the blue light is emitted;
  • the mixed liquid crystal materials in the red strip groove, the green strip groove, and the blue strip groove are uniformly mixed by a physical method
  • the dichroic dye is an azo compound or a quinone compound.
  • a liquid crystal display device provided by the present invention replaces a color photoresist layer on a CF substrate by mixing quantum dots having different emission bands in a liquid crystal, so that the liquid crystal display panel has no color photoresist layer.
  • the structure is simple and the manufacturing cost is low, and the color display quality of the liquid crystal display panel is good, and the light transmittance is high, thereby effectively improving the light energy utilization of the liquid crystal display device. Rate and display performance.
  • FIG. 1 is a schematic cross-sectional view of a conventional liquid crystal display panel
  • FIG. 2 is a perspective exploded view of the liquid crystal display panel of FIG. 1;
  • FIG. 3 is a cross-sectional structural view showing a liquid crystal display panel in a liquid crystal display device of the present invention
  • FIG. 4 is a schematic structural view of a black matrix in the liquid crystal display panel of FIG. 3;
  • FIG. 5 is a schematic structural view of a color blocking wall in the liquid crystal display panel of FIG. 3;
  • FIG. 6 is a schematic view showing adjustment of incident light by a dichroic dye when a liquid crystal molecule is in a vertical state
  • FIG. 7 is a schematic view showing adjustment of incident light by a dichroic dye when the polarization direction of incident light is perpendicular to the absorption axis of the dichroic dye molecule;
  • Figure 8 is a schematic view showing the adjustment of the incident light by the dichroic dye when the polarization direction of the incident light is parallel to the absorption axis of the dichroic dye molecule;
  • FIG. 9 is a schematic view showing adjustment of incident light by a dichroic dye when no liquid is applied to both sides of the liquid crystal layer in the VA type display mode;
  • FIG. 10 is a schematic view showing adjustment of incident light by a dichroic dye when power is applied to both sides of a liquid crystal layer in a VA type display mode;
  • FIG. 11 is a schematic view showing adjustment of incident light by a dichroic dye when the direction of the transmission axis of the polarizer in the IPS/FFS type display mode is parallel to the horizontal alignment direction when the liquid crystal molecules are not charged;
  • Fig. 12 is a view showing the adjustment of the incident light by the dichroic dye when the direction of the transmission axis of the polarizer in the IPS/FFS type display mode is perpendicular to the horizontal alignment direction when the liquid crystal molecules are not charged.
  • the present invention first provides a liquid crystal display device including a liquid crystal display panel and a backlight;
  • the liquid crystal display panel includes an upper substrate 10, a lower substrate 20 disposed opposite the upper substrate 10, a polarizing plate 30 disposed under the lower substrate 20, and an edge portion disposed between the upper and lower substrates 10 and 20.
  • Frame glue (not shown).
  • the upper substrate 10 includes a first transparent substrate 11, a black matrix 12 disposed on the first transparent substrate 11, and a color blocking wall 13 disposed above the black matrix 12 and corresponding to the black matrix 12;
  • the black matrix 12 includes a plurality of horizontal light shielding strips 121 and a plurality of longitudinal light shielding strips 122 vertically intersecting with the plurality of horizontal light shielding strips 121;
  • the color blocking wall 13 includes two correspondingly disposed on the outermost two lateral light shielding strips 121 a horizontal color blocking wall 131, and a plurality of longitudinal color blocking walls 132 respectively corresponding to the plurality of longitudinal light shielding strips 122, the two horizontal color blocking walls 131 and the plurality of longitudinal color blocking walls 132 at the first
  • a plurality of strip-shaped grooves 14 are defined in the transparent substrate 11.
  • the plurality of strip grooves 14 include a red strip groove 141, a green strip groove 142, and a blue strip groove 143; the red strip groove 141, the green strip groove 142, and the blue strip Different mixed liquid crystal materials are respectively disposed in the groove 143, and red, green and blue light are respectively emitted under the illumination of the backlight.
  • the height of the color blocking wall 13 is determined by the thickness of the liquid crystal display panel, and the process conditions and corresponding materials are similar to the photoresist spacers in the prior art.
  • the lower substrate 20 includes a second transparent substrate 21, a TFT layer 22 provided on the second transparent substrate 21, and an alignment film 23 provided on the TFT layer 22.
  • the first transparent substrate 11 of the upper substrate 10 and the second transparent substrate 21 of the lower substrate 20 are both glass substrates.
  • the mixed liquid crystal material in the red strip groove 141 is a mixture of a liquid crystal, a dichroic dye, and a red light quantum dot
  • the mixed liquid crystal material in the groove 142 is a mixture of a liquid crystal, a dichroic dye, and a green light quantum dot
  • the mixed liquid crystal material in the blue strip groove 143 is a mixture of a liquid crystal, a dichroic dye, and a blue quantum dot
  • the red light quantum dots in the red strip grooves 141, the green light quantum dots in the green strip grooves 142, and the blue quantum dots in the blue strip grooves 143 are respectively emitted under the illumination of blue violet light or laser light. Red, green, blue light.
  • the mixed liquid crystal material in the red strip groove 141 is a mixture of a liquid crystal, a dichroic dye, and a red light quantum dot
  • the green strip groove 142 is The mixed liquid crystal material is a mixture of a liquid crystal, a dichroic dye, and a green light quantum dot
  • the mixed liquid crystal material in the blue strip groove 143 is a mixture of a liquid crystal and a dichroic dye
  • the red strip groove 141 is inside
  • the red light quantum dots and the green light quantum dots in the green strip grooves 142 respectively emit red and green light under the illumination of blue light
  • the blue strip grooves 143 are not provided with quantum dots, thereby transmitting blue light and emitting blue light.
  • the mixed liquid crystal materials in the red strip groove 141, the green strip groove 142, and the blue strip groove 143 are uniformly mixed by a physical method, for example, mechanical stirring by a stirrer or ultrasonic vibration. mixing.
  • the mixed liquid crystal material is a mixture of a liquid crystal, a dichroic dye, and a quantum dot
  • the quantum dot is separated from the liquid crystal and the dichroic dye after the mixed liquid crystal material is injected into the strip groove 14.
  • the light passes through the liquid crystal and the dichroic dye, and then passes through the quantum dot to convert into three colors of RGB, instead of the effect of RGB color resistance, and the amount
  • the self-aggregation behavior of the sub-points will produce a similar effect to the alignment film, and the chain structure formed by the sub-layer will cause the liquid crystal to generate an alignment force, which can replace the alignment effect of the alignment film.
  • the dichroic dye is an azo compound or a quinone compound.
  • the red, green, and blue light quantum dots used in the present invention are semiconductor nanocrystalline quantum dots or other photoluminescent nanoparticles.
  • the upper substrate 10 further includes a common electrode disposed between the first transparent substrate 11 and the black matrix 12
  • the lower substrate 20 further includes a pixel electrode layer disposed between the TFT layer 22 and the alignment film 23.
  • the alignment film may not be disposed in the upper substrate 10, and the liquid crystal may be aligned only by the self-aggregation effect of the quantum dots.
  • An alignment film may be provided on the bottom of the strip-shaped groove 14 of the upper substrate 10 to further improve the alignment effect.
  • the lower substrate 20 further includes a TFT disposed on the TFT.
  • the pixel electrode layer and the common electrode layer between the layer 22 and the alignment film 23; the upper substrate 10 further includes an alignment film provided on the first transparent substrate 11.
  • the dichroic dye used in the invention has a polarization function, and after mixing with the liquid crystal, the dichroic dye rotates with the rotation of the liquid crystal molecules under the action of the electric field, and is consistent with the orientation of the liquid crystal molecules.
  • the two colors The working principle of the dye in the liquid crystal is as follows:
  • the dichroic dye molecules 123 absorb the light most. Weak, almost all of the light passes through the liquid crystal layer;
  • the cross-number indicates that the polarization direction of the incident light is perpendicular to the paper surface, and the polarization direction of the incident light is perpendicular to the paper surface, and the liquid crystal molecules 122 and the dichroic dye molecules 123 are parallel to the upper and lower substrates 10,
  • the polarization direction of the incident light is perpendicular to the absorption axis of the dichroic dye molecules 123, and the dichroic dye molecules 123 have the weakest absorption of light, and the light passes almost entirely through the liquid crystal layer;
  • the black double arrow indicates that the polarization direction of the incident light is parallel to the paper surface, and the polarization direction of the incident light is parallel to the paper surface, and the liquid crystal molecules 122 and the dichroic dye molecules 123 are parallel to the upper and lower substrates 10 .
  • the polarization direction of the incident light is parallel to the absorption axis of the dichroic dye molecules 123.
  • the dichroic dye molecules 123 have the strongest absorption of light, and the light is almost completely absorbed by the dichroic dye molecules 123. After finally passing through the liquid crystal layer, the light intensity is zero.
  • the polarizer 30 is disposed on the lower substrate. 20 is away from the side of the upper substrate 10, specifically, the direction of the transmission axis of the polarizer 30 corresponds to different liquid crystal display mode settings:
  • the transmission axis direction of the polarizer 30 is set to be parallel to the alignment direction when the liquid crystal molecules are powered;
  • the liquid crystal molecules 122 and the dichroic dye molecules 123 are arranged perpendicular to the upper and lower substrates 10, 20, and the polarization direction of the incident light and the dichroic dye molecules 123
  • the absorption axis is perpendicular, the dichroic dye molecule 123 has the weakest absorption of light, the light passes almost completely through the liquid crystal layer, and the liquid crystal display panel is in a bright state;
  • the liquid crystal molecules 122 and the dichroic dye molecules 123 are arranged in parallel with the upper and lower substrates 10, 20, and the polarization direction of the incident light and the dichroic dye molecules 123
  • the absorption axis is parallel, the dichroic dye molecule 123 has the strongest absorption of light, the light is almost completely absorbed by the dichroic dye molecules 123, and finally, after passing through the liquid crystal layer, the light intensity is zero, and the liquid crystal display panel is in a dark state. .
  • the direction of the transmission axis of the polarizer 30 is set to be parallel or perpendicular to the horizontal alignment direction when the liquid crystal molecules are not powered;
  • the transmission axis direction of the polarizer 30 is parallel to the horizontal alignment direction when the liquid crystal molecules are not charged, and when the liquid crystal layer is not charged, the absorption axis of the dichroic dye molecules 123 and the incident light are The polarization direction is parallel, the dichroic dye molecules 123 have the strongest absorption of light, the light is almost completely absorbed by the dichroic dye molecules 123, and finally, after passing through the liquid crystal layer, the light intensity is zero, and the liquid crystal display panel is in a dark state.
  • the liquid crystal molecules and the dichroic dye molecules 123 After applying a voltage to the liquid crystal layer, as the voltage increases, the liquid crystal molecules and the dichroic dye molecules 123 gradually rotate under the action of the electric field, with the absorption axis of the dichroic dye molecules 123 and the polarization direction of the incident light. Gradually close to 90°, the absorption of light by the dichroic dye molecules 123 gradually weakens. When the absorption axis of the dichroic dye molecules 123 is perpendicular to the polarization direction of the incident light, the dichroic dye molecules 123 have the weakest absorption effect on the light. , the liquid crystal display panel is in a bright state;
  • the transmission axis direction of the polarizer 30 is perpendicular to the horizontal alignment direction when the liquid crystal molecules are not charged, and when the liquid crystal layer is not charged, the absorption axis of the dichroic dye molecules 123 and the incident light are
  • the polarization direction is vertical, the dichroic dye molecules 123 have the weakest absorption of light, the light passes almost completely through the liquid crystal layer, and the liquid crystal display panel is in a bright state; after applying a voltage to the liquid crystal layer, the liquid crystal molecules are the same as the dichroic dye molecules 123.
  • the liquid crystal display device replaces the color photoresist layer on the CF substrate by mixing quantum dots having different emission bands in the liquid crystal, so that the liquid crystal display panel has no color photoresist layer.
  • it is still possible to emit light of three colors of RGB and at the same time, by incorporating a dichroic dye having a polarization function in the liquid crystal, the setting of one polarizing plate is reduced, and the liquid crystal display panel of the present invention is compared with the conventional liquid crystal display panel.
  • the color photoresist layer and the upper polarizer are omitted, the structure is simple, the manufacturing cost is low, and the color display quality of the liquid crystal display panel is good, and the light transmittance is high, thereby effectively improving the light energy utilization rate of the liquid crystal display device. And display performance.

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Abstract

一种液晶显示装置，通过在液晶中混入具有不同发光波段的量子点，来代替CF基板（100）上的彩色光阻层（120），使得液晶显示面板在没有彩色光阻层（120）的情况下依然可以发出RGB三色的光，同时通过在液晶中混入具有偏振功能的二色性染料（123），减少了一片偏光板的设置，与传统的液晶显示面板相比，该液晶显示面板由于省去了彩色光阻层（120）、及上偏光片（400）等部件，结构简单，制作成本低，现时该液晶显示面板的色彩显示品质好，光线透过率高，有效提高了液晶显示装置的光能利用率及显示性能。

Description

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)。所述背光模组为液晶显示面板提供光源，所述液晶显示面板通过信号驱动进一步控制光线的通过量，经由有色光阻将通过的光线过滤为红绿蓝三基色，通过对三基色的光强的调节搭配以实现不同亮度及色彩的显示。
图1为现有的一种液晶显示面板的剖面示意图，图2为图1的液晶显示面板的立体分解示意图，如图1和图2所示，所述液晶显示面板包括CF基板100、与CF基板100相对设置的TFT基板200、设于所述CF基板100与TFT基板200之间的液晶层300、设于所述CF基板100上方的上偏振片400、设于所述下基板200下方的下偏振片500、及设于所述CF基板100与TFT基板200之间边缘位置的边框胶(未图示)；所述CF基板100包括玻璃基板110、设于所述玻璃基板110上的彩色光阻层120及黑色矩阵130、以及设于所述黑色矩阵120上方且对应所述黑色矩阵120设置的光阻间隙物140等；所述TFT基板200包括玻璃基板210、设于所述玻璃基板210上的TFT层220、设于所述TFT层220上的配向膜230等。
液晶显示面板的工作过程是通过TFT基板200与CF基板100上的电极控制像素区域的液晶分子转动使得透射光的偏振态发生相应改变，配合所述TFT基板200与CF基板100两侧的上、下偏振片400、500达到控制透光量的目的；CF基板100则是将透过液晶层300的光线进行过滤吸收，使得每个像素区域的光在射出液晶显示面板后都是由三基色(或四色)构成。
但是CF基板100只可以让部分波段的光线通过，且需要借助上偏光片400对光线进行偏振，所以通过CF基板100之后的光强会衰减为原来的约33％，这是目前LCD光效率较低的原因之一。
随着科技的发展及客户需求的提升，为追求更高的显示画质，对彩色 滤光膜的滤光能力提出了较高的要求，但受限于背光源的频谱及色阻材料本身的特性限制，色彩的表现能力受到了较大的限制。现在兴起的有机发光材料与量子点(quantum dot，QD)材料在发光方面具有很大的优势。量子点基于其量子受限的原理，对于指定的量子点其在特定的尺寸时其发光波长是唯一确定的，且其结构特点决定其发射光的频段极窄，半高宽(full width at half maximum，FWHM)可达20nm，通过调控材料的合成尺寸即可获得RGB三个不同波段的发射光。利用量子点优异的发光特性可以实现对发光光谱的优化从而得到高色域显示及高色彩纯度，对显示性能的提高有很大帮助。
发明内容
本发明的目的在于提供一种液晶显示装置，其液晶显示面板的结构简单，与传统的液晶显示面板相比，省去了彩色光阻层、及上偏光片等部件，结构简单，制作成本低，同时该液晶显示面板的色彩显示品质好，光线透过率高，有效提高了液晶显示装置的光能利用率及显示性能。
为实现上述目的，本发明提供一种液晶显示装置，包括液晶显示面板及背光源；
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、设于所述下基板下方的偏振片、及设于所述上、下基板之间边缘位置的边框胶；
所述上基板包括第一透明基板、设于所述第一透明基板上的黑色矩阵、以及设于所述黑色矩阵上方且对应所述黑色矩阵设置的色阻挡墙；
所述黑色矩阵包括数条横向遮光带、及与所述数条横向遮光带垂直交叉排列的数条纵向遮光带；所述色阻挡墙包括分别对应最外侧的两条横向遮光带设置的两条横向色阻挡墙、及分别对应所述数条纵向遮光带设置的数条纵向色阻挡墙，所述两条横向色阻挡墙与数条纵向色阻挡墙在所述第一透明基板上围成数个条形槽；
所述数个条形槽包括红色条形槽、绿色条形槽、及蓝色条形槽；所述红色条形槽、绿色条形槽、及蓝色条形槽内分别设置有不同的混合液晶材料，在背光源的照射下分别发出红、绿、蓝光；
所述下基板包括第二透明基板、设于所述第二透明基板上的TFT层、及设于所述TFT层上的配向膜。
当所述背光源为蓝紫色LED灯或激光光源时，所述红色条形槽内的混合液晶材料为液晶、二色性染料、及红光量子点的混合物，所述绿色条形槽内的混合液晶材料为液晶、二色性染料、及绿光量子点的混合物，所述 蓝色条形槽内的混合液晶材料为液晶、二色性染料、及蓝光量子点的混合物；所述红色条形槽内的红光量子点、所述绿色条形槽内的绿光量子点、及所述蓝色条形槽内的蓝光量子点在蓝紫光或激光的照射下分别发出红、绿、蓝光。
当所述背光源为蓝色LED灯时，所述红色条形槽内的混合液晶材料为液晶、二色性染料、及红光量子点的混合物，所述绿色条形槽内的混合液晶材料为液晶、二色性染料、及绿光量子点的混合物，所述蓝色条形槽内的混合液晶材料为液晶与二色性染料的混合物；所述红色条形槽内的红光量子点、及绿色条形槽内的绿光量子点分别在蓝光的照射下发出红、绿光；所述蓝色条形槽内没有设置量子点，从而使蓝光透过，发出蓝光。
当所述液晶显示面板为VA型液晶显示面板时，所述上基板还包括设于所述第一透明基板与黑色矩阵之间的公共电极层；所述下基板还包括设于所述TFT层与配向膜之间的像素电极层。
所述上基板的条形槽的底部设置有配向膜。
当所述液晶显示面板为IPS或FFS型液晶显示面板时，所述下基板还包括设于所述TFT层与配向膜之间的像素电极层与公共电极层，所述上基板还包括设置于所述第一透明基板上的配向膜。
所述红色条形槽、绿色条形槽、及蓝色条形槽内的混合液晶材料均采用物理方法混合均匀。
所述二色性染料为偶氮类化合物或蒽醌类化合物。
当所述液晶显示面板为VA型液晶显示面板时，所述偏光片的透过轴方向平行于液晶分子加电时的配向方向。
当所述液晶显示面板为IPS或FFS型液晶显示面板时，所述偏光片的透过轴方向平行或垂直于液晶分子不加电时的水平配向方向。
本发明还提供一种液晶显示装置，包括液晶显示面板及背光源；
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、设于所述下基板下方的偏振片、及设于所述上、下基板之间边缘位置的边框胶；
所述上基板包括第一透明基板、设于所述第一透明基板上的黑色矩阵、以及设于所述黑色矩阵上方且对应所述黑色矩阵设置的色阻挡墙；
所述黑色矩阵包括数条横向遮光带、及与所述数条横向遮光带垂直交叉排列的数条纵向遮光带；所述色阻挡墙包括分别对应最外侧的两条横向遮光带设置的两条横向色阻挡墙、及分别对应所述数条纵向遮光带设置的数条纵向色阻挡墙，所述两条横向色阻挡墙与数条纵向色阻挡墙在所述第一透明基板上围成数个条形槽；
所述数个条形槽包括红色条形槽、绿色条形槽、及蓝色条形槽；所述红色条形槽、绿色条形槽、及蓝色条形槽内分别设置有不同的混合液晶材料，在背光源的照射下分别发出红、绿、蓝光；
所述下基板包括第二透明基板、设于所述第二透明基板上的TFT层、及设于所述TFT层上的配向膜；
其中，当所述背光源为蓝紫色LED灯或激光光源时，所述红色条形槽内的混合液晶材料为液晶、二色性染料、及红光量子点的混合物，所述绿色条形槽内的混合液晶材料为液晶、二色性染料、及绿光量子点的混合物，所述蓝色条形槽内的混合液晶材料为液晶、二色性染料、及蓝光量子点的混合物；所述红色条形槽内的红光量子点、所述绿色条形槽内的绿光量子点、及所述蓝色条形槽内的蓝光量子点在蓝紫光或激光的照射下分别发出红、绿、蓝光；
其中，当所述背光源为蓝色LED灯时，所述红色条形槽内的混合液晶材料为液晶、二色性染料、及红光量子点的混合物，所述绿色条形槽内的混合液晶材料为液晶、二色性染料、及绿光量子点的混合物，所述蓝色条形槽内的混合液晶材料为液晶与二色性染料的混合物；所述红色条形槽内的红光量子点、及绿色条形槽内的绿光量子点分别在蓝光的照射下发出红、绿光；所述蓝色条形槽内没有设置量子点，从而使蓝光透过，发出蓝光；
其中，所述红色条形槽、绿色条形槽、及蓝色条形槽内的混合液晶材料均采用物理方法混合均匀；
其中，所述二色性染料为偶氮类化合物或蒽醌类化合物。
本发明的有益效果：本发明提供的一种液晶显示装置，通过在液晶中混入具有不同发光波段的量子点，来代替CF基板上的彩色光阻层，使得液晶显示面板在没有彩色光阻层的情况下依然可以发出RGB三色的光，同时通过在液晶中混入具有偏振功能的二色性染料，减少了一片偏光板的设置，与传统的液晶显示面板相比，本发明的液晶显示面板由于省去了彩色光阻层、及上偏光片等部件，结构简单，制作成本低，同时该液晶显示面板的色彩显示品质好，光线透过率高，有效提高了液晶显示装置的光能利用率及显示性能。
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为现有的一种液晶显示面板的剖面示意图；
图2为图1的液晶显示面板的立体分解示意图；
图3为本发明液晶显示装置中的液晶显示面板的剖面结构示意图；
图4为图3的液晶显示面板中的黑色矩阵的结构示意图；
图5为图3的液晶显示面板中的色阻挡墙的结构示意图；
图6为二色性染料分子随液晶分子处于垂直状态时二色性染料对入射光的调节示意图；
图7为入射光的偏振方向垂直于二色性染料分子吸收轴时二色性染料对入射光的调节示意图；
图8为入射光的偏振方向平行于二色性染料分子吸收轴时二色性染料对入射光的调节示意图；
图9为VA型显示模式下液晶层两侧不加电时二色性染料对入射光的调节示意图；
图10为VA型显示模式下液晶层两侧加电时二色性染料对入射光的调节示意图；
图11为IPS/FFS型显示模式下偏光片透过轴方向与液晶分子不加电时的水平配向方向平行时二色性染料对入射光的调节示意图；
图12为IPS/FFS型显示模式下偏光片透过轴方向与液晶分子不加电时的水平配向方向垂直时二色性染料对入射光的调节示意图。
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3至图5，本发明首先提供一种液晶显示装置，包括液晶显示面板及背光源；
所述液晶显示面板包括上基板10、与上基板10相对设置的下基板20、设于所述下基板20下方的偏振片30、及设于所述上、下基板10、20之间边缘位置的边框胶(未图示)。
所述上基板10包括第一透明基板11、设于所述第一透明基板11上的黑色矩阵12、以及设于所述黑色矩阵12上方且对应所述黑色矩阵12设置的色阻挡墙13；
具体的，如图4所示，所述黑色矩阵12包括数条横向遮光带121、及与所述数条横向遮光带121垂直交叉排列的数条纵向遮光带122；如图5所示，所述色阻挡墙13包括分别对应最外侧的两条横向遮光带121设置的两 条横向色阻挡墙131、及分别对应所述数条纵向遮光带122设置的数条纵向色阻挡墙132，所述两条横向色阻挡墙131与数条纵向色阻挡墙132在所述第一透明基板11上围成数个条形槽14。
具体的，所述数个条形槽14包括红色条形槽141、绿色条形槽142、及蓝色条形槽143；所述红色条形槽141、绿色条形槽142、及蓝色条形槽143内分别设置有不同的混合液晶材料，在背光源的照射下分别发出红、绿、蓝光。
具体的，所述色阻挡墙13的高度将由液晶显示面板的盒厚所决定，其制程条件及对应材质同现有技术中的光阻间隙物类似。
所述下基板20包括第二透明基板21、设于所述第二透明基板21上的TFT层22、及设于所述TFT层22上的配向膜23。
优选的，所述上基板10中的第一透明基板11与所述下基板20中的第二透明基板21均为玻璃基板。
具体的，当所述背光源为蓝紫色LED灯或激光光源时，所述红色条形槽141内的混合液晶材料为液晶、二色性染料、及红光量子点的混合物，所述绿色条形槽142内的混合液晶材料为液晶、二色性染料、及绿光量子点的混合物，所述蓝色条形槽143内的混合液晶材料为液晶、二色性染料、及蓝光量子点的混合物；所述红色条形槽141内的红光量子点、所述绿色条形槽142内的绿光量子点、及所述蓝色条形槽143内的蓝光量子点在蓝紫光或激光的照射下分别发出红、绿、蓝光。
具体的，当所述背光源为蓝色LED灯时，所述红色条形槽141内的混合液晶材料为液晶、二色性染料、及红光量子点的混合物，所述绿色条形槽142内的混合液晶材料为液晶、二色性染料、及绿光量子点的混合物，所述蓝色条形槽143内的混合液晶材料为液晶与二色性染料的混合物；所述红色条形槽141内的红光量子点、及绿色条形槽142内的绿光量子点分别在蓝光的照射下发出红、绿光；所述蓝色条形槽143内没有设置量子点，从而使蓝光透过，发出蓝光。
具体的，所述红色条形槽141、绿色条形槽142、及蓝色条形槽143内的混合液晶材料均采用物理方法混合均匀，例如，采用搅拌机进行机械搅拌或者采用超声振荡的方式进行混合。
具体的，对于混合液晶材料为液晶、二色性染料、及量子点的混合物的情况，将所述混合液晶材料注入到条形槽14中后，量子点会与液晶及二色性染料发生分离而附着在条形槽14的底部，光线在经过液晶及二色性染料后会经过量子点转换成RGB三色的光，代替了RGB色阻的作用，且量 子点的自聚集行为，会产生与配向膜相近的作用，其形成的链状结构会使液晶产生配向力，即可代替配向膜的配向作用。
具体的，所述二色性染料为偶氮类化合物或蒽醌类化合物。
具体的，本发明采用的红、绿、蓝光量子点为半导体纳米晶量子点或其他光致发光的纳米颗粒。
具体的，当本发明的液晶显示面板为VA(Vertical Alignment，垂直取向)型液晶显示面板时，所述上基板10还包括设于所述第一透明基板11与黑色矩阵12之间的公共电极层；所述下基板20还包括设于所述TFT层22与配向膜23之间的像素电极层。此外，对于VA模式来说，由于量子点的自聚集效应，可以对液晶产生配向作用，因此，所述上基板10中可以不设置配向膜，仅依靠量子点的自聚集效应对液晶进行配向，也可以在所述上基板10的条形槽14的底部设置配向膜，从而进一步提高配向的效果。
具体的，当本发明的液晶显示面板为IPS(In-Plane Switching，平面转换)或FFS(Fringe Field Switching，边缘场开关)型液晶显示面板时，所述下基板20还包括设于所述TFT层22与配向膜23之间的像素电极层与公共电极层；所述上基板10还包括设于所述第一透明基板11上的配向膜。
本发明采用的二色性染料具有偏振功能，该二色性染料与液晶混合后，在电场的作用下随液晶分子的转动而转动，与液晶分子的取向保持一致，具体的，所述二色性染料在液晶中的工作原理如下：
请参阅图6，当入射光无特定偏振方向，且液晶分子122与二色性染料分子123垂直于上、下基板10、20排列时，此时二色性染料分子123对光线的吸收作用最弱，光线几乎全部通过液晶层；
请参阅图7，图中叉号表示入射光的偏振方向垂直于纸面，当入射光的偏振方向垂直于纸面，且液晶分子122与二色性染料分子123平行于上、下基板10、20排列时，入射光的偏振方向与二色性染料分子123的吸收轴垂直，所述二色性染料分子123对光线的吸收作用最弱，光线几乎全部通过液晶层；
请参阅图8，图中黑色双箭头表示入射光的偏振方向平行于纸面，当入射光的偏振方向平行于纸面，且液晶分子122与二色性染料分子123平行于上、下基板10、20排列时，入射光的偏振方向与二色性染料分子123的吸收轴平行，所述二色性染料分子123对光的吸收作用最强，光线几乎完全被二色性染料分子123吸收，最后透过液晶层后，光强为零。
根据以上原理，在本发明的液晶显示面板结构中便可以只使用一张偏光片30即可达到控制光强的作用，具体的，所述偏光片30设置于下基板 20远离上基板10的一侧，具体的，该偏光片30的透光轴方向对应不同的液晶显示模式设置：
当本发明的液晶显示面板为VA型液晶显示面板时，设置所述偏光片30的透过轴方向平行于液晶分子加电时的配向方向；
如图9所示，液晶层两侧不加电时，液晶分子122与二色性染料分子123垂直于上、下基板10、20排列，所述入射光的偏振方向与二色性染料分子123的吸收轴垂直，所述二色性染料分子123对光线的吸收作用最弱，光线几乎完全通过液晶层，液晶显示面板处于亮态；
如10所示，对液晶层两侧加电后，液晶分子122与二色性染料分子123平行于上、下基板10、20排列，所述入射光的偏振方向与二色性染料分子123的吸收轴平行，所述二色性染料分子123对光线的吸收作用最强，光线几乎完全被二色性染料分子123吸收，最后透过液晶层后，光强为零，液晶显示面板处于暗态。
当本发明的液晶显示面板为IPS或FFS型液晶显示面板时，设置所述偏光片30的透过轴方向平行或垂直于液晶分子不加电时的水平配向方向；
如图11所示，所述偏光片30的透过轴方向平行于液晶分子不加电时的水平配向方向，对液晶层不加电时，二色性染料分子123的吸收轴与入射光的偏振方向平行，所述二色性染料分子123对光线的吸收作用最强，光线几乎完全被二色性染料分子123吸收，最后透过液晶层后，光强为零，液晶显示面板处于暗态；对液晶层施加电压后，随着电压的增大，液晶分子同二色性染料分子123在电场的作用下逐渐旋转，随着二色性染料分子123的吸收轴与入射光偏振方向夹角逐渐接近90°，二色性染料分子123对光线的吸收作用逐渐减弱，当二色性染料分子123的吸收轴与入射光偏振方向垂直时，二色性染料分子123对光线的吸收效果最弱，液晶显示面板处于亮态；
如图12所示，所述偏光片30的透过轴方向垂直于液晶分子不加电时的水平配向方向，对液晶层不加电时，二色性染料分子123的吸收轴与入射光的偏振方向垂直，所述二色性染料分子123对光线的吸收作用最弱，光线几乎完全通过液晶层，液晶显示面板处于亮态；对液晶层施加电压后，液晶分子同二色性染料分子123在电场的作用下逐渐旋转，随着二色性染料分子123的吸收轴与入射光偏振方向逐渐接近平行，二色性染料分子123对光线的吸收作用逐渐增强，当二色性染料分子123的吸收轴与入射光偏振方向平行时，二色性染料分子123对光线的吸收效果最强，液晶显示面板处于暗态。
综上所述，本发明提供的一种液晶显示装置，通过在液晶中混入具有不同发光波段的量子点，来代替CF基板上的彩色光阻层，使得液晶显示面板在没有彩色光阻层的情况下依然可以发出RGB三色的光，同时通过在液晶中混入具有偏振功能的二色性染料，减少了一片偏光板的设置，与传统的液晶显示面板相比，本发明的液晶显示面板由于省去了彩色光阻层、及上偏光片等部件，结构简单，制作成本低，同时该液晶显示面板的色彩显示品质好，光线透过率高，有效提高了液晶显示装置的光能利用率及显示性能。
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 (18)

  1. 一种液晶显示装置，包括液晶显示面板及背光源；
    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、设于所述下基板下方的偏振片、及设于所述上、下基板之间边缘位置的边框胶；
    所述上基板包括第一透明基板、设于所述第一透明基板上的黑色矩阵、以及设于所述黑色矩阵上方且对应所述黑色矩阵设置的色阻挡墙；
    所述黑色矩阵包括数条横向遮光带、及与所述数条横向遮光带垂直交叉排列的数条纵向遮光带；所述色阻挡墙包括分别对应最外侧的两条横向遮光带设置的两条横向色阻挡墙、及分别对应所述数条纵向遮光带设置的数条纵向色阻挡墙，所述两条横向色阻挡墙与数条纵向色阻挡墙在所述第一透明基板上围成数个条形槽；
    所述数个条形槽包括红色条形槽、绿色条形槽、及蓝色条形槽；所述红色条形槽、绿色条形槽、及蓝色条形槽内分别设置有不同的混合液晶材料，在背光源的照射下分别发出红、绿、蓝光；
    所述下基板包括第二透明基板、设于所述第二透明基板上的TFT层、及设于所述TFT层上的配向膜。
  2. 如权利要求1所述的液晶显示装置，其中，当所述背光源为蓝紫色LED灯或激光光源时，所述红色条形槽内的混合液晶材料为液晶、二色性染料、及红光量子点的混合物，所述绿色条形槽内的混合液晶材料为液晶、二色性染料、及绿光量子点的混合物，所述蓝色条形槽内的混合液晶材料为液晶、二色性染料、及蓝光量子点的混合物；所述红色条形槽内的红光量子点、所述绿色条形槽内的绿光量子点、及所述蓝色条形槽内的蓝光量子点在蓝紫光或激光的照射下分别发出红、绿、蓝光。
  3. 如权利要求1所述的液晶显示装置，其中，当所述背光源为蓝色LED灯时，所述红色条形槽内的混合液晶材料为液晶、二色性染料、及红光量子点的混合物，所述绿色条形槽内的混合液晶材料为液晶、二色性染料、及绿光量子点的混合物，所述蓝色条形槽内的混合液晶材料为液晶与二色性染料的混合物；所述红色条形槽内的红光量子点、及绿色条形槽内的绿光量子点分别在蓝光的照射下发出红、绿光；所述蓝色条形槽内没有设置量子点，从而使蓝光透过，发出蓝光。
  4. 如权利要求1所述的液晶显示装置，其中，当所述液晶显示面板为VA型液晶显示面板时，所述上基板还包括设于所述第一透明基板与黑色矩 阵之间的公共电极层；所述下基板还包括设于所述TFT层与配向膜之间的像素电极层。
  5. 如权利要求4所述的液晶显示装置，其中，所述上基板的条形槽的底部设置有配向膜。
  6. 如权利要求1所述的液晶显示装置，其中，当所述液晶显示面板为IPS或FFS型液晶显示面板时，所述下基板还包括设于所述TFT层与配向膜之间的像素电极层与公共电极层，所述上基板还包括设置于所述第一透明基板上的配向膜。
  7. 如权利要求2所述的液晶显示装置，其中，所述红色条形槽、绿色条形槽、及蓝色条形槽内的混合液晶材料均采用物理方法混合均匀。
  8. 如权利要求3所述的液晶显示装置，其中，所述红色条形槽、绿色条形槽、及蓝色条形槽内的混合液晶材料均采用物理方法混合均匀。
  9. 如权利要求2所述的液晶显示装置，其中，所述二色性染料为偶氮类化合物或蒽醌类化合物。
  10. 如权利要求3所述的液晶显示装置，其中，所述二色性染料为偶氮类化合物或蒽醌类化合物。
  11. 如权利要求1所述的液晶显示装置，其中，当所述液晶显示面板为VA型液晶显示面板时，所述偏光片的透过轴方向平行于液晶分子加电时的配向方向。
  12. 如权利要求1所述的液晶显示装置，其中，当所述液晶显示面板为IPS或FFS型液晶显示面板时，所述偏光片的透过轴方向平行或垂直于液晶分子不加电时的水平配向方向。
  13. 一种液晶显示装置，包括液晶显示面板及背光源；
    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、设于所述下基板下方的偏振片、及设于所述上、下基板之间边缘位置的边框胶；
    所述上基板包括第一透明基板、设于所述第一透明基板上的黑色矩阵、以及设于所述黑色矩阵上方且对应所述黑色矩阵设置的色阻挡墙；
    所述黑色矩阵包括数条横向遮光带、及与所述数条横向遮光带垂直交叉排列的数条纵向遮光带；所述色阻挡墙包括分别对应最外侧的两条横向遮光带设置的两条横向色阻挡墙、及分别对应所述数条纵向遮光带设置的数条纵向色阻挡墙，所述两条横向色阻挡墙与数条纵向色阻挡墙在所述第一透明基板上围成数个条形槽；
    所述数个条形槽包括红色条形槽、绿色条形槽、及蓝色条形槽；所述红色条形槽、绿色条形槽、及蓝色条形槽内分别设置有不同的混合液晶材 料，在背光源的照射下分别发出红、绿、蓝光；
    所述下基板包括第二透明基板、设于所述第二透明基板上的TFT层、及设于所述TFT层上的配向膜；
    其中，当所述背光源为蓝紫色LED灯或激光光源时，所述红色条形槽内的混合液晶材料为液晶、二色性染料、及红光量子点的混合物，所述绿色条形槽内的混合液晶材料为液晶、二色性染料、及绿光量子点的混合物，所述蓝色条形槽内的混合液晶材料为液晶、二色性染料、及蓝光量子点的混合物；所述红色条形槽内的红光量子点、所述绿色条形槽内的绿光量子点、及所述蓝色条形槽内的蓝光量子点在蓝紫光或激光的照射下分别发出红、绿、蓝光；
    其中，当所述背光源为蓝色LED灯时，所述红色条形槽内的混合液晶材料为液晶、二色性染料、及红光量子点的混合物，所述绿色条形槽内的混合液晶材料为液晶、二色性染料、及绿光量子点的混合物，所述蓝色条形槽内的混合液晶材料为液晶与二色性染料的混合物；所述红色条形槽内的红光量子点、及绿色条形槽内的绿光量子点分别在蓝光的照射下发出红、绿光；所述蓝色条形槽内没有设置量子点，从而使蓝光透过，发出蓝光；
    其中，所述红色条形槽、绿色条形槽、及蓝色条形槽内的混合液晶材料均采用物理方法混合均匀；
    其中，所述二色性染料为偶氮类化合物或蒽醌类化合物。
  14. 如权利要求13所述的液晶显示装置，其中，当所述液晶显示面板为VA型液晶显示面板时，所述上基板还包括设于所述第一透明基板与黑色矩阵之间的公共电极层；所述下基板还包括设于所述TFT层与配向膜之间的像素电极层。
  15. 如权利要求14所述的液晶显示装置，其中，所述上基板的条形槽的底部设置有配向膜。
  16. 如权利要求13所述的液晶显示装置，其中，当所述液晶显示面板为IPS或FFS型液晶显示面板时，所述下基板还包括设于所述TFT层与配向膜之间的像素电极层与公共电极层，所述上基板还包括设置于所述第一透明基板上的配向膜。
  17. 如权利要求13所述的液晶显示装置，其中，当所述液晶显示面板为VA型液晶显示面板时，所述偏光片的透过轴方向平行于液晶分子加电时的配向方向。
  18. 如权利要求13所述的液晶显示装置，其中，当所述液晶显示面板为IPS或FFS型液晶显示面板时，所述偏光片的透过轴方向平行或垂直于 液晶分子不加电时的水平配向方向。
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CN102044552A (zh) * 2009-10-16 2011-05-04 乐金显示有限公司 使用量子点的显示设备
KR20120072197A (ko) * 2010-12-23 2012-07-03 엘지디스플레이 주식회사 일축성 염료막을 포함하는 게스트-호스트 모드 액정표시장치
CN103969862A (zh) * 2013-01-25 2014-08-06 乐金显示有限公司 透明液晶显示设备
CN103869536A (zh) * 2014-03-06 2014-06-18 京东方科技集团股份有限公司 显示用基板及其制造方法、显示装置
CN104503130A (zh) * 2014-12-29 2015-04-08 厦门天马微电子有限公司 一种彩膜基板、显示面板及显示装置
CN104536198A (zh) * 2015-02-03 2015-04-22 京东方科技集团股份有限公司 一种显示基板、显示面板和显示装置

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