WO2016101311A1 - 一种提高正负性混合液晶响应时间的方法和装置 - Google Patents

一种提高正负性混合液晶响应时间的方法和装置 Download PDF

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Publication number
WO2016101311A1
WO2016101311A1 PCT/CN2014/095573 CN2014095573W WO2016101311A1 WO 2016101311 A1 WO2016101311 A1 WO 2016101311A1 CN 2014095573 W CN2014095573 W CN 2014095573W WO 2016101311 A1 WO2016101311 A1 WO 2016101311A1
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Prior art keywords
liquid crystal
electrode
positive
mixed liquid
negative
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English (en)
French (fr)
Inventor
谢畅
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/433,635 priority Critical patent/US20160187744A1/en
Publication of WO2016101311A1 publication Critical patent/WO2016101311A1/zh
Anticipated expiration legal-status Critical
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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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134336—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
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134381—Hybrid switching mode, i.e. for applying an electric field with components parallel and orthogonal to the substrates
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13706—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering the liquid crystal having positive dielectric anisotropy
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13712—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering the liquid crystal having negative dielectric anisotropy

Definitions

  • the present invention relates to the field of liquid crystal display, and more particularly to a method and apparatus for improving the response time of a positive and negative mixed liquid crystal.
  • the liquid crystal monomer of the positive-negative mixed liquid crystal has a large viscosity
  • the response time of the positive-negative mixed liquid crystal becomes long.
  • the liquid crystal device is likely to be stuck when the screen is switched, and a black screen phenomenon is generated, which affects the user experience.
  • the technical problem to be solved by the present invention is to provide a method and apparatus for improving the response time of positive and negative mixed liquid crystals, which can ensure that the positive and negative mixed liquid crystals have higher transmittance while improving the response time.
  • a technical solution adopted by the present invention is to provide a method for improving the response time of a positive and negative mixed liquid crystal, and the steps of the method include: The horizontal electrode, the vertical electrode and the positive and negative mixed liquid crystal of the positive and negative mixed liquid crystal display panel are arranged; the horizontal electrode is energized, the positive and negative mixed liquid crystal is in the rising time; the vertical electrode is energized, and the positive and negative mixed liquid crystal is in the falling time; Negative hybrid liquid crystal is formed by adding a part of negative liquid crystal monomer in positive liquid crystal; the sum of rise time and fall time is the response time of positive and negative mixed liquid crystal; the response time of positive and negative mixed liquid crystal is dark from liquid crystal display panel The time it takes to turn the light and turn it dark.
  • the step of setting the horizontal electrode, the vertical electrode and the positive-negative mixed liquid crystal of the positive-negative hybrid liquid crystal display panel comprises: stacking the horizontal electrodes and placing them on one side of the vertical electrodes, and placing the positive and negative mixed liquid crystals on the stacked layer. Between the electrodes.
  • the extending direction of the horizontal electrode is perpendicular to the extending direction of the vertical electrode
  • the horizontal electrode includes at least one first common electrode and at least one first pixel electrode placed in parallel with the first common electrode
  • the vertical electrode includes at least one second common electrode And at least one second pixel electrode placed in parallel with the second common electrode.
  • the horizontal electrode is energized to energize the first common electrode and the first pixel electrode
  • the vertical electrode is energized to energize the second common electrode and the second pixel electrode.
  • a technical solution adopted by the present invention is to provide a method for improving the response time of a positive-negative mixed liquid crystal, the method comprising the steps of: setting a horizontal electrode, a vertical electrode, and a positive and negative hybrid liquid crystal display panel; Positive and negative mixed liquid crystal; positive and negative mixed liquid crystal energizes the horizontal electrode during rising time; positive and negative mixed liquid crystal energizes the vertical electrode during falling time; the sum of rising time and falling time is the response time of positive and negative mixed liquid crystal .
  • the step of disposing the electrodes of the positive-negative hybrid liquid crystal display panel and the positive-negative mixed liquid crystal comprises: stacking the horizontal electrodes and placing them on one side of the vertical electrodes, and placing the positive and negative mixed liquid crystals between the electrodes placed in the stack; .
  • the extending direction of the horizontal electrode is perpendicular to the extending direction of the vertical electrode
  • the horizontal electrode includes at least one first common electrode and at least one first pixel electrode placed in parallel with the first common electrode
  • the vertical electrode includes at least one second common electrode And at least one second pixel electrode placed in parallel with the second common electrode.
  • the horizontal electrode is energized to energize the first common electrode and the first pixel electrode
  • the vertical electrode is energized to energize the second common electrode and the second pixel electrode.
  • the positive-negative mixed liquid crystal is formed by adding a part of a negative liquid crystal monomer to the positive liquid crystal.
  • the response time of the positive and negative mixed liquid crystal is the time taken for the liquid crystal display panel to turn from dark to dark.
  • another technical solution adopted by the present invention is to provide a device for improving the response time of a positive-negative mixed liquid crystal display, the display device comprising: an electrode of a positive-negative hybrid liquid crystal display panel and a positive-negative hybrid liquid crystal
  • the electrode comprises a horizontal electrode and a vertical electrode, and the positive and negative mixed liquid crystal is disposed between the horizontal electrode and the vertical electrode, and the positive and negative mixed liquid crystal response time is the sum of the rise and fall times of the positive and negative mixed liquid crystal, in the rising time,
  • the horizontal electrode is energized, and the vertical electrode is energized during the fall time.
  • the horizontal electrode and the vertical electrode are stacked in a stack.
  • the extending direction of the horizontal electrode is perpendicular to the extending direction of the vertical electrode
  • the horizontal electrode comprises a first common electrode and a first pixel electrode arranged side by side and in parallel
  • the vertical electrode comprises a second common electrode and a second pixel electrode arranged side by side and in parallel .
  • the horizontal electrode is energized to energize the first common electrode and the first pixel electrode
  • the vertical electrode is energized to energize the second common electrode and the second pixel electrode.
  • the invention has the beneficial effects that the method and the device for improving the response time of the positive and negative mixed liquid crystals are different from the prior art, and the liquid crystal display is given during the falling time of the response time of the positive and negative mixed liquid crystals.
  • the vertical electrode of the panel is energized, and under the action of the electric field generated by the vertical electrode, it is quickly rotated back to the initial alignment position, instead of being turned back to the initial alignment position by the anchoring force of the liquid crystal molecule itself, thereby accelerating the response time of the liquid crystal. Falling time, thus accelerating the positive and negative mixed LCD response time.
  • FIG. 1 is a schematic flow chart of a first embodiment of a method for improving response time of a positive and negative mixed liquid crystal according to the present invention
  • FIG. 2 is a schematic flow chart of a second embodiment of a method for improving the response time of a positive and negative mixed liquid crystal according to the present invention
  • FIG. 3 is a schematic structural view of a first embodiment of an apparatus for improving response time of a positive-negative mixed liquid crystal according to the present invention
  • FIG. 4 is a top plan view of a device in a first embodiment of the apparatus for improving the response time of a positive and negative mixed liquid crystal according to the present invention
  • FIG. 5 is a design interface diagram of a device for improving a response time of a positive and negative hybrid liquid crystal according to a first embodiment of the present invention
  • FIG. 6 is a schematic diagram of a first cover glass 3011 designed to improve the response time of a positive-negative mixed liquid crystal according to the first embodiment of the present invention, having a plurality of electrodes on different levels.
  • FIG. 1 is a schematic flow chart of a first embodiment of a method for improving response time of a positive-negative mixed liquid crystal according to the present invention.
  • the steps of the method include:
  • S101 setting a horizontal electrode, a vertical electrode, and a positive-negative mixed liquid crystal of the positive-negative hybrid liquid crystal display panel.
  • the liquid crystal material is a basic component of the liquid crystal display panel, and the arrangement of the molecules inside the liquid crystal material is changed by the voltage to achieve the purpose of shading and light transmission to display images of different shades and irregularities.
  • the positive-negative mixed liquid crystal is a part of the negative liquid crystal monomer added to the positive liquid crystal. Since the vertical dielectric constant of the negative liquid crystal monomer is large, the vertical dielectric constant of the liquid crystal mixture is improved. The increase of the vertical dielectric constant of the mixed liquid crystal causes the tilt angle between the liquid crystal molecules and the liquid crystal display panel to be small, so that the liquid crystal molecules can be horizontally rotated in a plane parallel to the liquid crystal display panel, and the liquid crystal display panel has a higher level. The transmittance of the liquid crystal display panel is also better.
  • the positive-negative mixed liquid crystal has a transmittance increase of 3%-8% compared with the ordinary positive liquid crystal, and the data can be checked, and the liquid crystal display panel on the market is now transparent. The rate is only around 10%.
  • the response time of the liquid crystal In the field of liquid crystal display, due to the rotation of liquid crystal molecules, there is a time process for each sub-pixel on the screen of the liquid crystal panel to transition from the previous color to the next color and then to the previous color. The process is called the response time of the liquid crystal.
  • the positive and negative mixed liquid crystals have a large viscosity due to the presence of a partially negative liquid crystal monomer, and have a retarding effect on the rotation of the positive and negative mixed liquid crystal molecules.
  • an electrode is disposed around the liquid crystal to form an electric field. Under the action of the electric field, the liquid crystal molecules rotate and the electric field is removed, and the liquid crystal molecules are turned back to the direction of the initial alignment.
  • the current positive and negative mixed liquid crystals are retarded by the addition of negative liquid crystal monomers, and are blocked when they are returned to the initial alignment, thereby increasing the response time of the positive and negative mixed liquid crystals.
  • a horizontal electrode and a vertical electrode are provided on the liquid crystal display panel, and an electric field in the vertical direction and the horizontal direction is formed between the horizontal electrode and the electrode plate of the vertical electrode after energization, and acts on the positive and negative mixed liquid crystal. Since liquid crystal molecules have polarity, Rotation occurs under the action of an electric field. After the setting is completed, the process proceeds to step S102.
  • the orientation of the initial position is determined by the alignment module of the liquid crystal display panel for the positive and negative mixed liquid crystal molecules.
  • the alignment module is used to set a pretilt angle for the liquid crystal molecules, which may be an alignment layer or an alignment groove.
  • an electric field is formed on the positive and negative mixed liquid crystal, and the liquid crystal molecules are polarized and rotated.
  • the effect of polarization is to positively charge one end of the liquid crystal molecules, and due to Coulomb force (qE)
  • the action is attracted to the negative direction of the electric field.
  • the negatively charged end of the molecule is attracted to the positive direction of the electric field, which causes the rotation of the liquid crystal molecules.
  • the process of liquid crystal molecules is the rise of the liquid crystal response time. period.
  • the positive and negative mixed liquid crystal molecules are rotated by the electric field formed by the horizontal electrodes, and the rotation is completed to proceed to step S103.
  • the two focal lines of the ellipse used to represent the liquid crystal molecules are referred to as the long axes of the liquid crystal molecules.
  • Liquid crystals have a special molecular arrangement, in various directions, such as parallel to the long axis direction of the molecular arrangement and perpendicular to the long axis of the molecular arrangement, physical constants (such as refractive index, permittivity, magnetic susceptibility, conductivity, etc.) The difference is that the liquid crystal has anisotropy. After the electric field formed by the horizontal electrode causes the liquid crystal molecules to rotate, the liquid crystal molecules are no longer affected by the electric field formed by the horizontal electrodes.
  • the positive-negative mixed liquid crystal used increases the viscosity coefficient of the liquid crystal material, weakens the anchoring force of the liquid crystal molecules, and prolongs the liquid crystal response time. Therefore, the electrode in the vertical direction is energized, and the direction of the electric field generated is perpendicular to the direction of the electric field generated by the horizontal electrode, and continues to act on the liquid crystal molecules, so that the positive and negative charges inside the liquid crystal molecules continue to seek balance, and will continue to rotate or act along the electric field formed by the horizontal electrodes.
  • the method for improving the response time of the positive and negative mixed liquid crystals of the present embodiment energizes the vertical electrodes of the liquid crystal display panel and the electric field generated at the vertical electrodes during the falling time of the response time of the positive and negative mixed liquid crystals.
  • the rapid rotation returns to the initial alignment position, instead of turning back to the initial alignment position by the anchoring force of the liquid crystal molecules, thereby accelerating the falling time of the liquid crystal response time, thereby accelerating the response time of the positive and negative mixed liquid crystals.
  • FIG. 2 is a schematic flow chart of a second embodiment of a method for improving the response time of a positive-negative hybrid liquid crystal according to the present invention.
  • the steps of the method include:
  • the horizontal electrode layer is stacked and placed on one side of the vertical electrode.
  • the horizontal electrode and the vertical electrode on the liquid crystal display panel are stacked and placed in an overlapping manner, and the order of lamination is adjustable.
  • the two electrodes are independent of each other and are controlled by their respective independent switches without affecting each other.
  • the direction in which the horizontal electrodes are placed is perpendicular to the direction in which the vertical electrodes are placed.
  • S202 The positive and negative mixed liquid crystals are placed between the electrodes placed in the stack.
  • the positive and negative mixed liquid crystals are placed between the stacked horizontal electrodes and the vertical electrodes, and the distance between the two electrodes and the mixed liquid crystal layer is equivalent. Therefore, when the two electrodes are energized, an electric field is applied to the mixed liquid crystal to have similar or the same effect.
  • the alignment module is used to set the initial angular position of the liquid crystal molecules. Since the liquid crystal molecules are elliptical, the initial angle is set such that the long axis direction of the liquid crystal molecules is offset from the direction perpendicular to the electric field formed by the horizontal electrodes by a small angle. Then, the process proceeds to step S203.
  • S203 The first common electrode and the first pixel electrode of the horizontal electrode are energized, and the positive and negative mixed liquid crystals are in a rising time.
  • the horizontal electrode in the present invention includes a first common electrode and a first pixel electrode, and the first common electrode and the first pixel electrode are placed side by side in parallel, and the shapes are similar or even the same. After the first common electrode and the first pixel electrode are energized, an electric field is formed, and the electric field direction is directed from one of the first common electrode and the first pixel electrode to the plate of the other electrode. The electric field acts on the positive and negative mixed liquid crystals to polarize the liquid crystal molecules.
  • the polarized liquid crystal molecules are attracted to the negative direction of the electric field, and the negatively charged end is attracted to the positive direction of the electric field, and the Coulomb force generated causes the liquid crystal molecules to rotate until the liquid crystal molecules After the direction of the long axis is parallel to the direction of the electric field, the liquid crystal molecules stop rotating. At this time, the process of rotating the liquid crystal molecules is a rising period of the response time of the liquid crystal.
  • the vertical electrode includes a second common electrode and a second pixel electrode, and the second common electrode and the second pixel electrode of the vertical electrode are placed in the same manner as the first common electrode and the first pixel electrode of the horizontal electrode, and the second The common electrode and the second pixel electrode are placed perpendicular to the horizontal electrode.
  • the electric field formed by the horizontal electrode causes the liquid crystal molecules to rotate to a direction perpendicular to the horizontal electrode to reach equilibrium, and stops the rotation.
  • the electric field formed by the horizontal electrode is removed, and after the second common electrode and the second pixel electrode are energized, a new electric field is formed, and the electric field direction is directed from one of the second common electrode and the second pixel electrode to the plate of the other electrode.
  • the new electric field begins to act on the polarized liquid crystal molecules.
  • the positively charged end is attracted to the negative direction of the electric field, and the negatively charged end is attracted to the positive direction of the electric field.
  • the Coulomb force generated causes the liquid crystal molecules to continue to rotate.
  • the direction of the electric field formed by the vertical electrode is related to, and can continue to rotate in the direction in which the liquid crystal molecules rotate in the electric field formed by the horizontal electrode, or in the opposite direction of the rotation of the liquid crystal molecules when the electric field is formed on the horizontal electrode is parallel to the direction of the long axis of the liquid crystal molecule
  • the position of the horizontal electrode stops rotating.
  • the process of rotating the liquid crystal molecules is a period of time during which the response time of the liquid crystal is lowered.
  • the method for improving the response time of the positive and negative mixed liquid crystals of the embodiment has a vertical electrode disposed in a direction perpendicular to the horizontal electrode, and the liquid crystal molecules rotate due to the electric field force, thereby improving the liquid crystal response time.
  • the response speed of the liquid crystal display panel is faster and more stable
  • FIG. 3 is a schematic structural view of a first embodiment of an apparatus for improving the response time of a positive and negative mixed liquid crystal according to the present invention
  • FIG. 4 is a device for improving the response time of a positive and negative mixed liquid crystal according to the present invention.
  • FIG. 5 is a design interface diagram of a device for improving the response time of a positive and negative mixed liquid crystal according to a first embodiment of the present invention
  • FIG. 6 is a first embodiment of the device according to the present invention.
  • a cover glass 3011 has a plurality of electrodes and is located at different levels.
  • the device 300 includes a cover glass 301, an electrode 302, and a positive and negative mixed liquid crystal layer 303.
  • the cover glass 301 includes a first cover glass 3011 and a second cover glass 3012. The two are placed side by side and have small intervals.
  • the material can be high alumina high alkali aluminosilicate glass or soda lime silica glass.
  • the electrode 302 may be attached to the surface of the cover glass 301 by using an ITO electrode.
  • the positive and negative mixed liquid crystal layer 303 is disposed in the interval between the first and second cover glass 3011, 3012.
  • the positive and negative mixed liquid crystal is a part of the negative liquid crystal monomer added in the positive liquid crystal, and the liquid crystal in the positive liquid crystal
  • the dipole moment of the molecule is parallel to the long axis direction of the molecule.
  • Such a liquid crystal has a fast response speed and a low driving voltage, but the light efficiency is low, and the molecules are obliquely arranged when the electric field acts; and the dipole moment and the molecular moment of the liquid crystal molecule in the negative liquid crystal
  • the long axis direction is vertical, the negative liquid crystal has a slow response speed, and the driving voltage is high, but the light efficiency is high, and the molecules are horizontally arranged when the electric field acts.
  • This portion of the negative liquid crystal monomer increases the vertical dielectric constant of the positive and negative mixed liquid crystal layer 303, but at the same time increases the viscosity of the positive and negative mixed liquid crystal.
  • an alignment film (not shown) for guiding the alignment of the liquid crystal molecules is disposed, and the alignment film is located between the liquid crystal layer and the electrode.
  • an alignment layer is provided on each of the upper and lower sides of the positive and negative mixed liquid crystal layer 303. The alignment layer sets an initial angular position for the liquid crystal molecules before the electrodes are energized to form an electric field.
  • the electrode 302 includes a horizontal electrode 3021 and a vertical electrode 3022, which are respectively attached to the first cover glass 3011 and the second cover glass 3012, and the order and manner of attachment are not unique.
  • the horizontal electrode 3021 includes a first common electrode 30211 and a first pixel electrode 30212, each of which is at least one, parallel and alternately disposed;
  • the vertical electrode 3022 includes a second common electrode 30221 and a second pixel electrode 30222, the number of which is at least Each is one, parallel and alternately set.
  • the first common electrode 30211 and the first pixel electrode 30212, the second common electrode 30221, and the second pixel electrode 30222 may be respectively disposed on opposite inner surfaces of the first cover glass 3011 and the second cover glass 3012, wherein the first common electrode
  • the extending direction of the 30211 and the first pixel electrode 30212 is perpendicular to the extending direction of the second common electrode 30221 and the second pixel electrode 30222.
  • an independent power source (not shown) so as to be on the first cover glass 3011, An electric field is formed between a common electrode 30211 and the first pixel electrode 3012.
  • an electric field is formed between the second common electrode 30221 and the second pixel electrode 30222.
  • the electric field direction is from a cover glass. One electrode is directed to the other electrode on the cover glass.
  • the electrodes on the cover glass form electric field directions from the common electrode to the pixel electrodes, and the positive and negative mixed liquid crystal layer 303 located in the gap between the two cover glasses can be subjected to an electric field.
  • the first cover glass 3011 is opened to control a power switch (not shown) of the electric field formed by the first common electrode 30211 and the first pixel electrode 3012, and the electric field line direction of the electric field is generated to be directed from the first common electrode 30211.
  • the first pixel electrode 30212 at this time, the liquid crystal molecules in the positive and negative mixed liquid crystal layer 303 are polarized by an electric field.
  • the polarized liquid crystal molecules rotate under the action of the electric field.
  • the long-axis direction of the liquid crystal molecules is parallel to the direction of the electric field lines, the rotation stops. At this time, the internal charge of the liquid crystal molecules is balanced by the Coulomb force of the electric field, and the liquid crystal molecules rotate.
  • the process is the rise time of the LCD response time.
  • the power switch that controls the electric field formed by the first common electrode 30211 and the first pixel electrode 3012 is turned off, and the power switch that controls the electric field formed by the second common electrode 30221 and the second pixel electrode 30222 is turned on, and the electric field direction is from the second common electrode 30221.
  • the direction of the electric field line of the new electric field is perpendicular to the long axis direction of the liquid crystal molecule, and the liquid crystal molecule is subjected to the Coulomb force of the new electric field, so that the liquid crystal molecules continue to rotate, or the liquid crystal molecules rotate when the electric field is formed along the horizontal electrode.
  • the rotation in the opposite direction stops until the long axis direction of the liquid crystal molecules is parallel to the direction of the electric field line of the new electric field.
  • a plurality of common electrodes and a plurality of pixel electrodes may be disposed on the same cover glass, and the common electrode and the pixel electrode are arranged alternately and in parallel on the cover glass, and one common electrode and one pixel electrode are arranged.
  • an electric field is formed between the common electrode and the pixel electrode in the group, and each group is controlled by an independent power switch, and does not interfere with each other.
  • the electrodes on the same cover glass can be located on different layers.
  • the first common electrode 30211 may be disposed on the inner side of the cover glass 3011, and a first common electrode 30211 is disposed on the cover plate 3011.
  • the first pixel electrode 30212 is disposed on a side of the insulating layer different from the first common electrode 30211.
  • the first common electrode 30211 and the first pixel electrode 30212 are energized to form an electric field, and the electric field line is not positive.
  • the negative mixed liquid crystal layer 303 is plane-parallel, but generates a component of the electric field force in the horizontal direction to cause the liquid crystal molecules to transmit and rotate.
  • the cover glass 3011 has a plurality of first common electrodes 30211 and a plurality of first pixel electrodes 30212
  • a part of the electrodes may be attached to the inner side of the cover glass 3011, and an insulating plate (not labeled) is disposed on the partial electrodes.
  • the remaining electrodes are disposed on the other side of the insulating plate, but it is necessary to ensure that the first common electrode 30211 and the first pixel electrode 30212 are sequentially and alternately arranged in a projected image of the cover glass 3011 on a plane, and the projections are adjacent.
  • the first common electrode 30211 and the first pixel electrode 30212 are grouped into one group, and an electric field is formed between the common electrode and the pixel electrode in the group, and each group is also controlled by an independent power switch without mutual interference.
  • the arrangement of the second common electrode 30221 and the second pixel electrode 30222 on the vertical electrode 3022 is similar or even the same as the arrangement of the aforementioned horizontal electrode 3021.
  • the electric fields generated by the common electrode and the pixel electrode of each group respectively act on the liquid crystal molecules in the corresponding regions of the electrodes on the positive and negative mixed liquid crystal layer 303.
  • the device for improving the response time of the positive and negative mixed liquid crystal provided by the embodiment can be directly applied to the liquid crystal display panel made of the positive and negative mixed liquid crystal, and the device of the invention improves the response time of the mixed liquid crystal and plays the screen. And the smooth switching can reduce the appearance of the card and black screen and enhance the user experience.
  • the device for improving the response time of the positive and negative mixed liquid crystals in the embodiment has two electrodes with different directions disposed on both sides of the liquid crystal layer, and an electric field is generated by the power switch of the control electrode to make the liquid crystal molecules The rotation is to accelerate the rotation speed of the liquid crystal molecules under the action of the electric field force, thereby accelerating the response time of the positive and negative mixed liquid crystal.

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Abstract

提供了一种提高正负性混合液晶响应时间的方法和装置，该方法的步骤包括：设置正负性混合液晶显示面板的水平电极、垂直电极和正负性混合液晶（S101）；给水平电极通电，正负性混合液晶在上升时间（S102）；给垂直电极通电，正负性混合液晶在下降时间（S103）；其中，上升时间和下降时间之和为正负性混合液晶的响应时间，其能够加快正负性混合液晶的下降时间，从而提高正负性混合液晶的响应时间。

Description

一种提高正负性混合液晶响应时间的方法和装置
【技术领域】
本发明涉及液晶显示领域，特别是涉及一种提高正负性混合液晶响应时间的方法和装置。
【背景技术】
由于液晶分子的转动，引起液晶显示面板屏幕上每个sub-pixel由前一桢色亮度过渡到后一桢色亮度再过渡到前一桢色亮度时有一个时间过程，这就是液晶的响应时间。现有一种正负性混合液晶，其垂直介电常数高于普通液晶，这种液晶能近似水平地进行转动，使液晶显示面板具有较高透过率。
但由于正负性混合液晶的液晶单体粘度较大，使正负性混合液晶的响应时间变长。当混合液晶的响应时间过长时，构成的液晶装置在画面切换时容易出现卡顿，还会有黑屏现象产生，影响用户体验。
【发明内容】
本发明主要解决的技术问题是提供一种提高正负性混合液晶响应时间的方法和装置，能够保证正负性混合液晶具有较高透过率的同时提高其响应时间。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种提高正负性混合液晶响应时间的方法，该方法的步骤包括： 设置正负性混合液晶显示面板的水平电极、垂直电极和正负性混合液晶；给水平电极通电，正负性混合液晶在上升时间；给垂直电极通电，正负性混合液晶在下降时间；正负性混合液晶是在正性液晶中加入一部分负性液晶单体形成；上升时间和下降时间之和为正负性混合液晶的响应时间；正负性混合液晶的响应时间是液晶显示面板从暗转亮再转暗所用的时间。
其中，设置正负性混合液晶显示面板的水平电极、垂直电极和正负性混合液晶的步骤包括：将水平电极层叠且交叉放置于垂直电极的一侧，将正负性混合液晶放置于层叠放置的电极之间。
其中，水平电极的延伸方向垂直于垂直电极的延伸方向，水平电极包括至少一第一公共电极和与第一公共电极并排平行放置的至少一第一像素电极，垂直电极包括至少一第二公共电极和与第二公共电极并排平行放置的至少一第二像素电极。
其中，水平电极通电是给第一公共电极和第一像素电极通电，垂直电极通电是给第二公共电极和第二像素电极通电。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种提高正负性混合液晶响应时间的方法，该方法的步骤包括：设置正负性混合液晶显示面板的水平电极、垂直电极和正负性混合液晶；正负性混合液晶在上升时间，给水平电极通电；正负性混合液晶在下降时间，给垂直电极通电；上升时间和下降时间之和为正负性混合液晶的响应时间。
其中，设置正负性混合液晶显示面板的电极和正负性混合液晶的步骤包括：将水平电极层叠且交叉放置于垂直电极的一侧，将正负性混合液晶放置于层叠放置的电极之间。
其中，水平电极的延伸方向垂直于垂直电极的延伸方向，水平电极包括至少一第一公共电极和与第一公共电极并排平行放置的至少一第一像素电极，垂直电极包括至少一第二公共电极和与第二公共电极并排平行放置的至少一第二像素电极。
其中，水平电极通电是给第一公共电极和第一像素电极通电，垂直电极通电是给第二公共电极和第二像素电极通电。
其中，正负性混合液晶是在正性液晶中加入一部分负性液晶单体形成。
其中，正负性混合液晶的响应时间是液晶显示面板从暗转亮再转暗所用的时间。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种提高正负性混合液晶响应时间的装置，该显示装置包括：正负性混合液晶显示面板的电极和正负性混合液晶，电极包括水平电极和垂直电极，正负性混合液晶设置于水平电极和垂直电极之间，正负性混合液晶响应时间是正负性混合液晶上升时间和下降时间之和，在上升时间时，水平电极通电，在下降时间时，垂直电极通电。
其中，水平电极和垂直电极交叉层叠放置。
其中，水平电极的延伸方向垂直于垂直电极的延伸方向，水平电极包括并排且平行放置的第一公共电极和第一像素电极，垂直电极包括并排且平行放置的第二公共电极和第二像素电极。
其中，水平电极通电是为第一公共电极和第一像素电极通电，垂直电极通电是为第二公共电极和第二像素电极通电。
本发明的有益效果是：区别于现有技术的情况，本发明提供的一种提高正负性混合液晶响应时间的方法和装置，在正负性混合液晶响应时间的下降时间阶段，给液晶显示面板的垂直电极通电，在垂直电极产生的电场的作用下，快速的转动回到初始配向位置，而不是凭借液晶分子自身的锚定力使之转回到初始配向位置，加快了液晶响应时间的下降时间，从而加快正负性混合液晶响应时间。
【附图说明】
图1是本发明一种提高正负性混合液晶响应时间的方法第一实施方式的流程示意图；
图2是本发明一种提高正负性混合液晶响应时间的方法第二实施方式的流程示意图；
图3是本发明一种提高正负性混合液晶响应时间的装置第一实施方式的结构示意图；
图4是本发明一种提高正负性混合液晶响应时间的装置第一实施方式中装置的设计俯视图；
图5是本发明一种提高正负性混合液晶响应时间的装置第一实施方式装置的设计界面图；
图6是根据本发明一种提高正负性混合液晶响应时间的装置第一实施方式设计的第一盖板玻璃3011上有多个电极且位于不同层面的示意图。
【具体实施方式】
下面结合附图和实施例对本发明进行详细说明。
参阅图1，图1是本发明一种提高正负性混合液晶响应时间的方法第一实施方式的流程示意图。该方法的步骤包括：
S101：设置正负性混合液晶显示面板的水平电极、垂直电极和正负性混合液晶。
液晶材料是液晶显示面板的基本组件，通过电压来改变液晶材料内部分子的排列状况，以达到遮光和透光的目的来显示深浅不一，错落有致的图像。而正负性混合液晶是在正性液晶中加入了一部分负性液晶单体，由于负性液晶单体的垂直介电常数较大，从而提高了液晶混合物的垂直介电常数。混合液晶垂直介电常数的增大会使得液晶分子和液晶显示面板之间的倾斜角度变小，从而使液晶分子能够在平行于液晶显示面板的平面内水平旋转，此时液晶显示面板具有更高的透过率，液晶显示面板的显示效果也更好。而经过本发明发明人的实验研究发现，正负性混合液晶相对于普通正性液晶，其透过率提高了3%-8%，而资料可查，现在市面上的液晶显示面板的透过率只在10%左右。
在液晶显示领域，由于液晶分子的转动，引起液晶面板屏幕上每个sub-pixel由前一桢色亮度过渡到后一桢色亮度再过渡到前一桢色亮度时有一个时间过程，这个时间过程称为液晶的响应时间。正负性混合液晶由于存在部分负性液晶单体，负性的液晶单体具有较大的粘度，对于正负性混合液晶分子的转动起到阻滞的作用。在现有技术中，在液晶周围设置电极形成电场，在电场作用下，液晶分子发生旋转，撤掉电场，液晶分子会转回初始配向的方向。但现在的正负性混合液晶由于加入负性液晶单体粘度增大，转回初始配向时受到阻滞，从而增大了正负性混合液晶的响应时间。
在本实施方式中，在液晶显示面板上设置水平电极和垂直电极，通电后水平电极和垂直电极的极板之间分别形成了垂直方向和水平方向的电场，作用于正负性混合液晶。由于液晶分子具有极性， 在电场作用下就会发生旋转。设置完成后进入步骤S102。
S102：给水平电极通电，正负性混合液晶在上升时间。
首先用液晶显示面板的配向模块为正负性混合液晶分子确定初始位置的方向。配向模块用来给液晶分子设定预倾角，可以是配向层或配向槽。给水平电极通电后，形成了电场作用于正负性混合液晶上，液晶分子被极化而发生转动，极化的效果是使液晶分子的其中一端带正电，并且由于库仑力（qE）的作用，被吸引到电场的负极方向，相反地，分子的带负电荷的一端会被吸引到电场的正极方向，这就造成液晶分子的转动，此时液晶分子转动的过程就是液晶响应时间的上升时间段。正负性混合液晶分子在水平电极形成的电场作用下转动，转动完成进入步骤S103。
S103：给所述垂直电极通电，所述正负性混合液晶在下降时间。
由于液晶分子呈椭圆形结构，把用来表示液晶分子的椭圆两个焦点连线称为液晶分子的长轴。液晶具有特殊的分子排列，在不同的方向，如平行于分子排列的长轴方向和垂直于分子排列长轴方向上，各项物理常数（如折射率、电容率、磁化率、电导率等）各不相同，即液晶具有各向异性。把前述的水平电极形成的电场使液晶分子发生转动后，液晶分子不再受水平电极形成的电场的作用，此时若撤掉水平电极形成的电场，液晶分子在液晶配向时锚定力的作用下，转动回到初始配向时的位置。本发明中，采用的正负性混合液晶增大了液晶材料的粘滞系数，使液晶分子回转的锚定力减弱，延长了液晶响应时间。所以给垂直方向的电极通电，产生的电场方向与水平电极产生的电场方向垂直，继续作用于液晶分子，使液晶分子内部正负电荷继续寻求平衡，会继续转动或沿水平电极形成的电场作用时转动的反方向返回，直到液晶分子长轴的方向平行于电场方向后，液晶分子停止转动。并非液晶分子初始配向的锚定力，而是垂直方向的电场作用，使液晶分子转回初始的位置，从而缩短混合液晶的响应时间。
相比于现有技术，本实施例的提高正负性混合液晶响应时间的方法，在正负性混合液晶响应时间的下降时间阶段，给液晶显示面板的垂直电极通电，在垂直电极产生的电场的作用下，快速的转动回到初始配向位置，而不是凭借液晶分子自身的锚定力使之转回到初始配向位置，加快了液晶响应时间的下降时间，从而加快正负性混合液晶响应时间。
参阅图2，图2是本发明一种提高正负性混合液晶响应时间的方法第二实施方式的流程示意图。该方法的步骤包括：
S201：水平电极层叠交叉放置于垂直电极的一侧。
液晶显示面板上的水平电极和垂直电极层叠交叉放置，层叠的顺序可调。两电极间相互独立，由各自的独立开关控制，互不影响。水平电极放置的延伸的方向与垂直电极放置的延伸方向相互垂直。
S202：正负性混合液晶放置于层叠放置的电极之间。
将正负性混合液晶放置于层叠的水平电极和垂直电极之间，两种电极与混合液晶层的距离相当，所以两种电极通电后产生电场作用于混合液晶时效果相近或者相同。首先是利用配向模块为液晶分子设定初始角度位置，因液晶分子呈椭圆型，故设置初始角度为液晶分子的长轴方向与水平电极形成的电场垂直的方向偏离一个小角度。然后进入步骤S203。
S203：给水平电极的第一公共电极和第一像素电极通电，正负性混合液晶在上升时间。
本发明中的水平电极包括第一公共电极和第一像素电极，第一公共电极和第一像素电极并排平行的放置，形状相似甚至相同。第一公共电极和第一像素电极通电后，形成电场，电场方向从第一公共电极和第一像素电极中的一个电极极板指向另一电极的极板。电场作用于正负性混合液晶，将液晶分子极化。极化的液晶分子在电场的作用下，带正电荷的一端被吸引向电场的负极方向，带负电荷的一端被吸引向电场的正极方向，产生的库仑力使液晶分子发生转动，直到液晶分子长轴的方向平行于电场方向后，液晶分子停止转动。此时，液晶分子转动的过程是液晶响应时间的上升时间段。
S204：给垂直电极的第二公共电极和第二像素电极通电，正负性混合液晶在下降时间。
与水平电极相同，垂直电极包括第二公共电极和第二像素电极，垂直电极的第二公共电极和第二像素电极的放置方式和水平电极的第一公共电极和第一像素电极相同，第二公共电极和第二像素电极垂直于水平电极放置。在步骤S203中，水平电极形成的电场使液晶分子转动到与水平电极垂直的方向后达到平衡，停止转动。撤掉水平电极形成的电场，第二公共电极和第二像素电极通电后，形成新电场，电场方向从第二公共电极和第二像素电极中的一个电极极板指向另一电极的极板。新电场开始作用在极化的液晶分子上，带正电荷的一端被吸引向电场的负极方向，带负电荷的一端被吸引向电场的正极方向，产生的库仑力使液晶分子继续转动，方向与垂直电极形成的电场的方向有关，可以沿水平电极形成的电场时的液晶分子转动的方向继续转动，或者沿水平电极形成电场时的液晶分子转动的反方向转动到液晶分子长轴的方向平行于水平电极的位置，停止转动。液晶分子转动的过程是液晶响应时间的下降时间段。
对比于现有技术，本实施例的提高正负性混合液晶响应时间的方法，在垂直于水平电极的方向上设置垂直电极，液晶分子因电场力而发生转动，提高了液晶响应时间，同时，采用了水平转换技术，使液晶显示面板的反应速度更快更稳定
参阅图3-图6，图3是本发明一种提高正负性混合液晶响应时间的装置第一实施方式的结构示意图，图4是本发明一种提高正负性混合液晶响应时间的装置第一实施方式中装置的设计俯视图，图5是本发明一种提高正负性混合液晶响应时间的装置第一实施方式装置的设计界面图，图6是根据本发明装置第一实施方式设计的第一盖板玻璃3011上有多个电极且位于不同层面的示意图。
该装置300包括：盖板玻璃301，电极302和正负性混合液晶层303。
其中，盖板玻璃301包括第一盖板玻璃3011和第二盖板玻璃3012，二者并排放置且间隔小，材质可采用高铝高碱的铝硅酸盐玻璃或者钠钙硅玻璃。电极302可采用ITO电极，附着于盖板玻璃301表面。正负性混合液晶层303设置于第一及第二盖板玻璃3011、3012间隔内，这里的正负性混合液晶是在正性液晶中加入了一部分负性液晶单体，正性液晶中液晶分子的偶极矩与分子长轴方向平行，这类液晶的响应速度快，驱动电压低，但是光效率低，分子在电场作用时倾斜排列；而负性液晶中液晶分子的偶极矩与分子长轴方向垂直，负性液晶的响应速度慢，驱动电压高，但是光效率高，分子在电场作用时水平排列。这部分负性液晶单体增加了正负性混合液晶层303的垂直介电常数，但同时也增大了正负性混合液晶的粘度。此外还有引导液晶分子排列方向的配向膜（图未示），配向膜位于液晶层与电极之间，本实施方式中，在正负性混合液晶层303上下两侧各设置一层配向层。配向层在电极未通电形成电场之前，为液晶分子设定初始角度位置。
电极302包括水平电极3021和垂直电极3022，二者分别附着在第一盖板玻璃3011和第二盖板玻璃3012上，附着的顺序和方式不唯一。水平电极3021包括第一公共电极30211和第一像素电极30212，两者数量至少各为1个，平行且交替设置；垂直电极3022包括第二公共电极30221和第二像素电极30222，两者数量至少各为1个，平行且交替设置。第一公共电极30211和第一像素电极30212、第二公共电极30221和第二像素电极30222可分别设置于第一盖板玻璃3011和第二盖板玻璃3012内侧相对的表面，其中第一公共电极30211和第一像素电极30212的延伸方向垂直于第二公共电极30221和第二像素电极30222的延伸方向。分别用独立的电源（图未示）连接到第一公共电极30211和第一像素电极30212、第二公共电极30221和第二像素电极30222之间，以使在第一盖板玻璃3011上，第一公共电极30211和第一像素电极30212之间形成电场，在第二盖板玻璃3012上，第二公共电极30221和第二像素电极30222之间形成电场，电场方向是从一盖板玻璃上的一个电极指向该盖板玻璃上的另一个电极。
在本实施例中，盖板玻璃上的电极形成电场方向均为从公共电极指向像素电极，位于两盖板玻璃间隔中的正负性混合液晶层303可受到电场的作用。
该装置工作时，打开第一盖板玻璃3011控制第一公共电极30211和第一像素电极30212形成的电场的电源开关（图未示），产生电场的电场线方向为从第一公共电极30211指向第一像素电极30212，此时正负性混合液晶层303中的液晶分子在电场作用下被极化。极化的液晶分子在电场的作用下，发生转动，到液晶分子的长轴方向与电场线方向平行时，停止转动，此时，液晶分子内部电荷受到电场的库仑力达到平衡，液晶分子转动的过程是液晶响应时间的上升时间。接着断开控制第一公共电极30211和第一像素电极30212形成的电场的电源开关，打开控制第二公共电极30221和第二像素电极30222形成的电场的电源开关，电场方向从第二公共电极30221指向第二像素电极30222，新电场的电场线方向与液晶分子长轴方向的垂直，液晶分子又受到新的电场的库仑力，使液晶分子继续转动，或者沿水平电极形成电场时的液晶分子转动的反方向转动，直到液晶分子长轴方向与新电场的电场线方向平行后停止。
在本实施例中，可以在同一盖板玻璃上设置多个公共电极和多个像素电极，在盖板玻璃上设置为公共电极和像素电极依次交替、平行排列，且一个公共电极和一个像素电极为一组，组内的公共电极和像素电极之间形成电场，每个组分别由独立的电源开关控制，互不干扰。同时，同一盖板玻璃上的电极可以位于不同层上。例如，当盖板玻璃3011上只有一个第一公共电极30211和一个第一像素电极30212时，可以将第一公共电极30211设置于盖板玻璃3011的内侧，于该第一公共电极30211上设置一绝缘层，第一像素电极30212设置于该绝缘层上与第一公共电极30211不同的一侧，此时给第一公共电极30211和第一像素电极30212通电后形成电场，电场线虽然不与正负性混合液晶层303平面平行，但是会产生一个水平方向的电场力的分量，使液晶分子发送转动。当盖板玻璃3011上有多个第一公共电极30211和多个第一像素电极30212时，可以将一部分电极附着于盖板玻璃3011的内侧，在这部分电极上设置一绝缘板（未标示），其余电极设置于绝缘板的另一侧，但需保证该盖板玻璃3011在平面上的投影图像中第一公共电极30211和第一像素电极30212是依次交替、平行排列，把投影相邻的第一公共电极30211和第一像素电极30212分为一组，组内的公共电极和像素电极之间形成电场，每个组同样由独立的电源开关控制，互不干扰。垂直电极3022上第二公共电极30221和第二像素电极30222的设置方式和前述水平电极3021的设置相似甚至相同。
此时，每一组的公共电极和像素电极产生的电场分别作用于电极在正负性混合液晶层303上对应区域中的液晶分子。
同时，本实施方式提供的提高正负性混合液晶响应时间的装置，可直接应用于由正负性混合液晶制得的液晶显示面板中，本发明的装置提高了混合液晶的响应时间，画面播放及切换流畅，可减少卡顿及黑屏现象的出现，增强了用户体验。
对比于现有技术，本实施例的提高正负性混合液晶响应时间的装置，在液晶层的两侧分别设置了两种方向不同的电极，并通过控制电极的电源开关，产生电场使液晶分子的转动是在电场力作用下，加快了液晶分子转动速度，从而加快了正负性混合液晶响应时间。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (14)

  1. 一种提高正负性混合液晶响应时间的方法，其中，包括：
    设置正负性混合液晶显示面板的水平电极、垂直电极和正负性混合液晶；
    给所述水平电极通电，所述正负性混合液晶在上升时间；
    给所述垂直电极通电，所述正负性混合液晶在下降时间；
    所述正负性混合液晶是在正性液晶中加入一部分负性液晶单体形成；所述上升时间和所述下降时间之和为正负性混合液晶的响应时间；所述正负性混合液晶的响应时间是所述液晶显示面板从暗转亮再转暗所用的时间。
  2. 根据权利要求1所述的方法，其中，
    所述设置正负性混合液晶显示面板的水平电极、垂直电极和正负性混合液晶的步骤包括：将所述水平电极层叠且交叉放置于所述垂直电极的一侧，将所述正负性混合液晶放置于所述层叠放置的电极之间。
  3. 根据权利要求1所述的方法，其中，
    所述水平电极的延伸方向垂直于所述垂直电极的延伸方向，所述水平电极包括至少一第一公共电极和与所述第一公共电极并排平行放置的至少一第一像素电极，所述垂直电极包括至少一第二公共电极和与所述第二公共电极并排平行放置的至少一第二像素电极。
  4. 根据权利要求3所述的方法，其中，
    所述水平电极通电是给所述第一公共电极和所述第一像素电极通电，所述垂直电极通电是给所述第二公共电极和所述第二像素电极通电。
  5. 一种提高正负性混合液晶响应时间的方法，其特征在于，所述方法的步骤包括：
    设置正负性混合液晶显示面板的水平电极、垂直电极和正负性混合液晶；
    给所述水平电极通电，所述正负性混合液晶在上升时间；
    给所述垂直电极通电，所述正负性混合液晶在下降时间；
    其中，所述上升时间和所述下降时间之和为正负性混合液晶的响应时间。
  6. 根据权利要求5所述的方法，其中，
    所述设置正负性混合液晶显示面板的水平电极、垂直电极和正负性混合液晶的步骤包括：将所述水平电极层叠且交叉放置于所述垂直电极的一侧，将所述正负性混合液晶放置于所述层叠放置的电极之间。
  7. 根据权利要求5所述的方法，其中，
    所述水平电极的延伸方向垂直于所述垂直电极的延伸方向，所述水平电极包括至少一第一公共电极和与所述第一公共电极并排平行放置的至少一第一像素电极，所述垂直电极包括至少一第二公共电极和与所述第二公共电极并排平行放置的至少一第二像素电极。
  8. 根据权利要求7所述的方法，其中，
    所述水平电极通电是给所述第一公共电极和所述第一像素电极通电，所述垂直电极通电是给所述第二公共电极和所述第二像素电极通电。
  9. 根据权利要求5所述的方法，其中，
    所述正负性混合液晶是在正性液晶中加入一部分负性液晶单体形成。
  10. 根据权利要求5所述的方法，其中，
    所述正负性混合液晶的响应时间是所述液晶显示面板从暗转亮再转暗所用的时间。
  11. 一种提高正负性混合液晶响应时间的装置，其中，包括正负性混合液晶显示面板的电极和正负性混合液晶；
    所述电极包括水平电极和垂直电极，所述正负性混合液晶设置于所述水平电极和垂直电极之间，所述正负性混合液晶响应时间是正负性混合液晶上升时间和下降时间之和，在所述上升时间时，所述水平电极通电，在所述下降时间时，所述垂直电极通电。
  12. 根据权利要求11所述的装置，其中，
    所述水平电极和所述垂直电极交叉层叠放置。
  13. 根据权利要求12所述的装置，其中，
    所述水平电极的延伸方向垂直于所述垂直电极的延伸方向，所述水平电极包括并排且平行放置的第一公共电极和第一像素电极，所述垂直电极包括并排且平行放置的第二公共电极和第二像素电极。
  14. 根据权利要求11所述的装置，其中，
    所述水平电极通电是为所述第一公共电极和所述第一像素电极通电，所述垂直电极通电是为所述第二公共电极和所述第二像素电极通电。
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CN103364980A (zh) * 2012-03-29 2013-10-23 乐金显示有限公司 液晶显示设备

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