WO2017028334A1 - 垂直配向型液晶显示装置及其驱动方法 - Google Patents

垂直配向型液晶显示装置及其驱动方法 Download PDF

Info

Publication number
WO2017028334A1
WO2017028334A1 PCT/CN2015/088402 CN2015088402W WO2017028334A1 WO 2017028334 A1 WO2017028334 A1 WO 2017028334A1 CN 2015088402 W CN2015088402 W CN 2015088402W WO 2017028334 A1 WO2017028334 A1 WO 2017028334A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
display device
crystal display
horizontal
vertical
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/CN2015/088402
Other languages
English (en)
French (fr)
Inventor
白柏
钟新辉
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/897,695 priority Critical patent/US20180157074A1/en
Publication of WO2017028334A1 publication Critical patent/WO2017028334A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • 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
    • G02F1/139—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 based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1392—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 based on orientation effects in which the liquid crystal remains transparent using a field-induced sign-reversal of the 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • 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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a vertical alignment type liquid crystal display device, and to a method for driving the vertical alignment type liquid crystal display device.
  • TFT-LCD display devices have been rapidly developed and widely used.
  • the response time indicates the time occupied by the brightness switching process of the liquid crystal panel, and is an important parameter reflecting the dynamic response capability of the liquid crystal.
  • the faster the response time the higher the maximum picture refresh rate that can be achieved by the display panel, and the smaller the smear, the clearer the dynamic picture of the high-speed motion displayed.
  • Response time includes rise time and fall time.
  • FIG. 1 it is a schematic diagram of the brightness (or transmittance) of the display panel as a function of time.
  • rise time refers to the time required for the brightness (or penetration) to rise from 10% to 90%.
  • Fall time refers to the time required for brightness (or penetration) to drop from 90% to 10%.
  • the rise time has a strong correlation with the operating voltage.
  • the fall time is only related to the design of the liquid crystal cell and the characteristics of the liquid crystal material itself (for example, the dielectric constant of the liquid crystal material, etc.). Therefore, in practical applications, the purpose of reducing the rise time can be achieved by increasing the operating voltage. However, in order to achieve the purpose of reducing the fall time, it is necessary to change the design of the liquid crystal cell and/or the manner in which the liquid crystal material is replaced.
  • the implementation method of reducing the fall time is much more complicated and less feasible.
  • the liquid crystal material to reduce the fall time it is likely to cause a drop in other characteristics of the display panel. For example, it causes a narrowing of the temperature range of use.
  • VA vertical alignment type
  • a vertical alignment type liquid crystal display device comprising:
  • a first polarizer and a second polarizer respectively formed on outer surfaces of the first substrate and the second substrate, wherein the transmission axes of the polarizers are orthogonal;
  • a second vertical electrode, an insulating layer, a first horizontal electrode, a second horizontal electrode, and a second vertical alignment layer on the inner side surface of the second substrate, two horizontal electrodes disposed in parallel with the same layer, and the first / The transmission axis of the second polarizer is parallel.
  • the first vertical electrode and the second vertical electrode are both planar electrodes.
  • the first horizontal electrode and/or the second horizontal electrode are comb electrodes.
  • the transmission axis of the first polarizer extends in the 0° direction
  • the transmission axis of the second polarizer extends in the 90° direction
  • the transmission axis of the first polarizer extends in a 90° direction, and the transmission axis of the second polarizer extends in a 0° direction.
  • the liquid crystal display device further includes a driving circuit, and the driving circuit includes a horizontal driving module configured to control the liquid crystal display device to change from a bright state to a dark state;
  • the horizontal driving module is specifically configured to: start stopping power supply to the first vertical electrode and the second vertical electrode, and start supplying power to the first horizontal electrode and the second horizontal electrode, and enable two horizontal electrodes
  • the voltage difference between the two is a first preset voltage difference; when the time for supplying power to the two horizontal electrodes reaches a preset time period, power supply to the two horizontal electrodes is stopped.
  • the first preset voltage difference is 2-10V, and/or the preset time period is 1-10ms.
  • the driving circuit further includes a vertical driving module configured to control the liquid crystal display device to change from a dark state to a bright state;
  • the vertical driving module is specifically configured to supply power to the first vertical electrode and the second vertical electrode, and make a voltage difference between the two vertical electrodes a second preset voltage difference.
  • a method for driving the above-described vertical alignment type liquid crystal display device includes controlling the liquid crystal display device to change from a bright state to a dark state;
  • Controlling the liquid crystal display device to change from a bright state to a dark state including:
  • the first preset voltage difference is 2-10V, and/or the preset time period is 1-10ms.
  • the driving method further includes controlling the liquid crystal display device to change from a bright state to a dark state;
  • Controlling the liquid crystal display device to change from a bright state to a dark state includes: supplying power to the first vertical electrode and the second vertical electrode, and causing a voltage difference between the two vertical electrodes to be a second predetermined voltage difference.
  • the first horizontal electrode and the second horizontal electrode are added to the existing structure.
  • the horizontal electric field between the two electrodes causes the negative liquid crystal molecules to rotate in the horizontal direction to the direction of the transmission axis of the polarizer, thereby accelerating the process of switching the liquid crystal display device from the bright state to the dark state, thereby effectively reducing the fall time.
  • the liquid crystal display device of the present invention has a high speed response speed and a better display effect when displaying a high speed dynamic picture.
  • the present invention accelerates the rotation of liquid crystal molecules by utilizing the generated horizontal electric field, and does not involve changes in the structure of the liquid crystal cell and the liquid crystal material. Therefore, the present invention is effective in reducing the fall time without affecting other excellent characteristics of the liquid crystal display device.
  • FIG. 1 is a schematic view showing changes in luminance of a liquid crystal display panel with time
  • FIG. 2a is a schematic view showing a state in which a vertical alignment type liquid crystal display device of the embodiment of the present invention is in a dark state when it is not powered;
  • Figure 2b is a schematic view showing the projection of the negative liquid crystal molecules on the insulating layer in Figure 2a;
  • 3a is a schematic view showing a bright state of a vertical alignment type liquid crystal display device according to an embodiment of the present invention
  • Figure 3b is a schematic view showing the projection of the negative liquid crystal molecules on the insulating layer in Figure 3a;
  • FIG. 4a is a schematic view showing a state in which a vertical alignment type liquid crystal display device of the embodiment of the present invention is in a dark state under the action of a horizontal electric field;
  • Figure 4b is a schematic view showing the projection of the negative liquid crystal molecules on the insulating layer in Figure 4a;
  • FIG. 5 is a view showing a state of a negative liquid crystal molecule when the liquid crystal display device is in a bright state
  • FIG. 6 is a flow chart showing a method of controlling a liquid crystal display device to change from a bright state to a dark state in the embodiment.
  • Embodiments of the present invention provide a vertical alignment type (VA) liquid crystal display device that is advantageous for reducing the fall time to achieve high-speed response of the liquid crystal display device.
  • VA vertical alignment type
  • a vertical alignment type liquid crystal display device of the embodiment of the present invention mainly includes a first substrate 101, a second substrate 201, a negative liquid crystal layer 300, a first polarizer, a first vertical electrode 102, a first vertical alignment layer, and a first The second polarizer, the second vertical electrode 202, the insulating layer 203, the first horizontal electrode 2041, the second horizontal electrode 2042, and the second vertical alignment layer.
  • the first polarizer, the second polarizer, the first vertical alignment layer, and the second vertical alignment layer are not shown in the drawings.
  • the inner sides of the first substrate 101 and the second substrate 201 are oppositely disposed.
  • the inner side surface of the first substrate 101 is disposed opposite to the inner side surface of the second substrate 201.
  • the negative liquid crystal layer 300 is sandwiched between the first substrate 101 and the second substrate 201.
  • the first polarizer, the first vertical electrode 102, and the first vertical alignment layer are disposed on the first substrate 101.
  • the second polarizer, the second vertical electrode 202, the insulating layer 203, the first horizontal electrode 2041, the second horizontal electrode 2042, and the second vertical alignment layer are disposed on the second substrate 201.
  • a first polarizer is formed on an outer surface of the first substrate 101
  • a second polarizer is formed on an outer surface of the second substrate 201.
  • the transmission axis of the first polarizer and the transmission axis of the second polarizer are orthogonal.
  • the transmission axis of the first polarizer extends in the 0° direction
  • the transmission axis of the second polarizer extends in the 90° direction.
  • the transmission axis of the first polarizer extends in the 90° direction
  • the transmission axis of the second polarizer extends in the 0° direction.
  • the first vertical electrode 102 is preferably a planar electrode.
  • the first vertical electrode 102 is formed on the inner side surface of the first substrate 101.
  • the first vertical alignment layer covers the inner side surface of the first vertical electrode 102.
  • the second vertical electrode 202 is preferably a planar electrode.
  • the second vertical electrode 202 is formed on the inner side surface of the second substrate 201.
  • the insulating layer 203 is formed on the inner side surface of the second vertical electrode 202.
  • the first horizontal electrode 2041 and the second horizontal electrode 2042 are disposed on the inner side surface of the insulating layer 203 in the same layer. Both the first horizontal electrode 2041 and the second horizontal electrode 2042 are preferably comb electrodes.
  • the longitudinal direction of the first horizontal electrode 2041 is parallel to the longitudinal direction of the second horizontal electrode 2042, and is parallel to the extending direction of the transmission axis of the first/second polarizer.
  • the second vertical alignment layer is formed on the pattern composed of the first horizontal electrode 2041 and the second horizontal electrode 2042.
  • the liquid crystal display device is arranged with the negative liquid crystal molecules perpendicular to the surface of the substrate without being charged.
  • the liquid crystal display device is displayed in a dark state.
  • the liquid crystal display device is controlled to switch from the dark state shown in Figure 2a to the bright state shown in Figure 3a. Specifically, power is supplied to the first vertical electrode 102 and the second vertical electrode 202 to generate a vertical electric field between the two vertical electrodes. At this time, the negative liquid crystal molecules are rotated and fluctuated under the action of a vertical electric field, and the liquid crystal display device is displayed in a bright state.
  • the lodging directions of the negative liquid crystal molecules of different quadrants are different.
  • the liquid crystal display device is controlled to switch from the bright state shown in Figure 3a to the dark state shown in Figure 4a.
  • the negative liquid crystal molecules are rotated by a horizontal electric field to a direction perpendicular to the horizontal electric field, and the liquid crystal display device is displayed in a dark state.
  • the duration of powering the two horizontal electrodes ranges from 1 to 10 ms.
  • the two horizontal electrodes are powered and the voltage difference between the horizontal electrodes is 2-10V.
  • the horizontal electric field is then released.
  • liquid crystal display devices of Figures 4a and 2a are all in a dark state. That is, the liquid crystal display device transitions from the state shown in Fig. 4a to the state shown in Fig. 2a, and the brightness does not change.
  • the first horizontal electrode 2041 and the second horizontal electrode 2042 are added to the existing structure.
  • the horizontal electric field between the two electrodes causes the negative liquid crystal molecules to rotate in the horizontal direction to the direction of the transmission axis of the polarizer, thereby accelerating the process of switching the liquid crystal display device from the bright state to the dark state, thereby effectively reducing the fall time.
  • the liquid crystal display device of the present embodiment has a high speed response speed and a better display effect when displaying a high speed dynamic picture.
  • the present embodiment accelerates the rotation of liquid crystal molecules by using the generated horizontal electric field, and does not involve changes in the structure of the liquid crystal cell and the liquid crystal material. Therefore, the embodiment of the present invention effectively reduces the fall time without affecting other excellent characteristics of the liquid crystal display device, and is highly feasible.
  • the liquid crystal liquid crystal display device of this embodiment further includes a driving circuit.
  • the drive circuit includes a horizontal drive module and a vertical drive module.
  • the horizontal driving module is configured to control the liquid crystal display device to change from a bright state to a dark state.
  • the horizontal driving module is specifically configured to stop the power supply to the first vertical electrode 102 and the second vertical electrode 202, and start to the first A horizontal electrode 2041 and a second horizontal electrode 2042 are powered, and the voltage difference between the two horizontal electrodes is a first predetermined voltage difference.
  • the horizontal driving module stops supplying power to the two horizontal electrodes.
  • the first preset voltage difference is preferably 2-10V.
  • the preset time period is preferably 1-10 ms.
  • the vertical driving module is configured to control the liquid crystal display device to change from a dark state to a bright state.
  • the vertical driving module is specifically configured to supply power to the first vertical electrode 102 and the second vertical electrode 202 such that the voltage difference between the two vertical electrodes is a second predetermined voltage difference.
  • an embodiment of the present invention also provides a method for driving the above-described vertical alignment type liquid crystal display device.
  • the driving method of this embodiment includes: controlling the liquid crystal display device to change from a bright state to a dark state.
  • FIG. 6 it is a schematic flow chart of a method for controlling a liquid crystal display device to change from a bright state to a dark state in this embodiment.
  • the method for controlling the liquid crystal display device to change from a bright state to a dark state in the embodiment mainly includes steps 1 to 3.
  • step 1 while powering the first vertical electrode 102 and the second vertical electrode 202 is stopped, power supply to the first horizontal electrode 2041 and the second horizontal electrode 2042 is started, and the voltage difference between the two horizontal electrodes is the first Set the voltage difference.
  • the first preset voltage difference is preferably 2-10V.
  • step 2 it is determined whether the time for supplying power to the two horizontal electrodes has reached a preset period of time.
  • the preset time period is preferably 1-10 ms.
  • step 3 after it is determined that the time for supplying power to the two horizontal electrodes reaches a preset period of time, power supply to the two horizontal electrodes is stopped.
  • the driving method further includes controlling the liquid crystal display device to change from a dark state to a bright state.
  • the method for controlling the liquid crystal display device to change from the dark state to the bright state is to supply power to the first vertical electrode 102 and the second vertical electrode 202, and the voltage difference between the two vertical electrodes is a second preset voltage difference.
  • the method for driving the vertical alignment type liquid crystal display device of the present embodiment accelerates the negative liquid crystal molecules in the horizontal direction to the direction of the transmission axis of the polarizer by increasing the horizontal electric field between the two electrodes.
  • This embodiment improves the high-speed response speed of the liquid crystal display device, and enables the device to have a better display effect when displaying a high-speed dynamic picture.
  • the present embodiment accelerates the rotation of liquid crystal molecules by using the generated horizontal electric field, and does not involve changes in the structure of the liquid crystal cell and the liquid crystal material. Therefore, the present embodiment is effective in reducing the fall time without affecting other excellent characteristics of the liquid crystal display device.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Geometry (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

一种垂直配向型液晶显示装置及其驱动方法。液晶显示装置在现有结构的基础上增加了两水平电极（2041, 2042）。通过产生的水平电场使负性液晶分子沿水平方向转动到偏光片的透光轴的方向，加速了液晶显示装置从亮态转换到暗态的过程，有效减小了下降时间。从而具有响应速度快，在显示高速动态画面时具有更佳的显示效果。

Description

垂直配向型液晶显示装置及其驱动方法
本申请要求享有2015年8月14日提交的名称为“垂直配向型液晶显示装置及其驱动方法”的中国专利申请CN201510498384.9的优先权，其全部内容通过引用并入本文中。
技术领域
本发明涉及显示技术领域，尤其涉及一种垂直配向型液晶显示装置，还涉及一种用于驱动该垂直配向型液晶显示装置的方法。
背景技术
近年来，主动式TFT-LCD显示器件得到了飞速的发展和广泛的应用。评价TFT-LCD显示器件产品的优劣有很多指标，例如分辨率、对比度、色域、响应时间等等。其中，响应时间表示液晶面板亮度切换过程所占的时间，是反映液晶动态响应能力的重要参数。通常来讲，响应时间越快，显示面板可实现的最高画面刷新频率就越高，从而拖影程度就越小，显示的高速运动的动态画面就越清晰。
响应时间包括上升时间和下降时间。如图1所示，是显示面板的亮度(或者穿透率)随时间变化的示意图。参照图1，上升时间指的是亮度(或者穿透率)从10％上升至90％所需的时间。下降时间指的是亮度(或者穿透率)从90％下降至10％所需的时间。
通常情况下，根据上升时间的计算式可知，上升时间与操作电压有强相关关系。操作电压越大，则上升时间越小。根据下降时间的计算式可知，下降时间仅与液晶盒的设计及液晶材料本身的特性(例如，液晶材料的介电常数等)相关。因此，在实际应用中，可通过增加操作电压的方式来达到减小上升时间的目的。然而，为了达到减小下降时间的目的，则需要通过更改液晶盒的设计和/或更换液晶材料的方式来实现。
相比于减小上升时间的实现方法，减小下降时间的实现方法要复杂得多，可行性也较低。一方面，通过改变液晶材料来减少下降时间的同时，很有可能造成显示面板的其他特性的下降。例如，造成使用温度范围的变窄。另一方面，通过改善液晶盒的设计来提高下降时间也很困难。
发明内容
本发明的目的在于提供一种有利于减小下降时间的垂直配向型(Vertical Alignment,VA)液晶显示装置及其驱动方法，以实现液晶显示装置的高速响应。
根据本发明的一个方面，提供了一种垂直配向型液晶显示装置，其包括：
内侧相对设置的第一基板和第二基板，及设置在两基板间的负性液晶层；
分别形成在所述第一基板和所述第二基板的外侧表面的第一偏光片和第二偏光片，两偏光片的透光轴正交；
依次形成在所述第一基板的内侧表面上的第一垂直电极和第一垂直配向层；以及
依次形成在所述第二基板的内侧表面上的第二垂直电极、绝缘层、第一水平电极、第二水平电极和第二垂直配向层，同层平行设置的两水平电极与所述第一/第二偏光片的透光轴平行。
优选的是，所述第一垂直电极和所述第二垂直电极均为平面电极。
优选的是，所述第一水平电极和/或所述第二水平电极为梳状电极。
优选的是，所述第一偏光片的透光轴沿0°方向延伸，所述第二偏光片的透光轴沿90°方向延伸；或者
所述第一偏光片的透光轴沿90°方向延伸，所述第二偏光片的透光轴沿0°方向延伸。
优选的是，上述液晶显示装置还包括驱动电路，所述驱动电路包括水平驱动模块，设置为控制所述液晶显示装置从亮态转变为暗态；
所述水平驱动模块具体设置为：停止向所述第一垂直电极和所述第二垂直电极供电的同时，开始向所述第一水平电极和所述第二水平电极供电，并使两水平电极间的电压差为第一预设电压差；当向两水平电极供电的时间达到预设时间段后，停止向两水平电极供电。
优选的是，所述第一预设电压差为2-10V，和/或，所述预设时间段为1-10ms。
优选的是，所述驱动电路还包括垂直驱动模块，设置为控制所述液晶显示装置从暗态转变为亮态；
所述垂直驱动模块具体设置为：向所述第一垂直电极和所述第二垂直电极供电，并使两垂直电极间的电压差为第二预设电压差。
根据本发明的另一个方面，提供了一种用于驱动上述垂直配向型液晶显示装置的方法，其包括控制所述液晶显示装置从亮态转变为暗态；
控制所述液晶显示装置从亮态转变为暗态，包括：
停止向所述第一垂直电极和所述第二垂直电极供电的同时，开始向所述第一水平电极和所述第二水平电极供电，并使两水平电极间的电压差为第一预设电压差；
判断向两水平电极供电的时间是否达到预设时间段；
在判断出向两水平电极供电的时间达到预设时间段后，停止向两水平电极供电。
优选的是，所述第一预设电压差为2-10V，和/或，所述预设时间段为1-10ms。
优选的是，上述驱动方法还包括控制所述液晶显示装置从亮态转变为暗态；
控制所述液晶显示装置从亮态转变为暗态，包括：向所述第一垂直电极和所述第二垂直电极供电，并使两垂直电极间的电压差为第二预设电压差。
与现有技术相比，上述方案中的一个或多个实施例可以具有如下优点或有益效果：
应用本发明的垂直配向型液晶显示装置，在现有结构的基础上增加了第一水平电极和第二水平电极。通过两电极间的水平电场使负性液晶分子沿水平方向转动到偏光片的透光轴的方向，加速了液晶显示装置从亮态转换到暗态的过程，从而有效减小了下降时间。本发明的液晶显示装置的高速响应速度快，在显示高速动态画面时具有更佳的显示效果。
本发明利用产生的水平电场加速了液晶分子的旋转，并未涉及液晶盒结构和液晶材料的改变。因此，本发明在有效减小下降时间的同时不会影响液晶显示装置的其它优良特性，可行性强。
本发明的其它特征和优点将在随后的说明书中阐述，并且部分地从说明书中变得显而易见，或者通过实施本发明而了解。本发明的目的和其他优点可通过在说明书、权利要求书以及附图中所特别指出的结构来实现和获得。
附图说明
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例共同用于解释本发明，并不构成对本发明的限制。在附图中：
图1示出了液晶显示面板的亮度随时间变化的示意图；
图2a示出了本发明实施例垂直配向型液晶显示装置由于未加电而处于暗态时的状态示意图；
图2b示出了图2a中的负性液晶分子在绝缘层上的投影的示意图；
图3a示出了本发明实施例垂直配向型液晶显示装置的亮态示意图；
图3b示出了图3a中的负性液晶分子在绝缘层上的投影的示意图；
图4a示出了本发明实施例垂直配向型液晶显示装置在水平电场的作用下处于暗态时的状态示意图；
图4b示出了图4a中的负性液晶分子在绝缘层上的投影的示意图；
图5示出了液晶显示装置处于亮态时负向液晶分子的状态示意图；以及
图6示出了本实施例中控制液晶显示装置从亮态转变为暗态的方法的流程示意图。
具体实施方式
以下将结合附图及实施例来详细说明本发明的实施方式，借此对本发明如何应用技术手段来解决技术问题，并达成技术效果的实现过程能充分理解并据以实施。需要说明的是，只要不构成冲突，本发明中的各个实施例以及各实施例中的各个特征可以相互结合，所形成的技术方案均在本发明的保护范围之内。
本发明实施例提供了一种有利于减小下降时间的垂直配向型(Vertical Alignment,VA)液晶显示装置，以实现液晶显示装置的高速响应。
参照图2a，本发明实施例垂直配向型液晶显示装置主要包括第一基板101、第二基板201、负性液晶层300、第一偏光片、第一垂直电极102、第一垂直配向层、第二偏光片、第二垂直电极202、绝缘层203、第一水平电极2041、第二水平电极2042和第二垂直配向层。其中，附图中未示出第一偏光片、第二偏光片、第一垂直配向层和第二垂直配向层。第一基板101和第二基板201内侧相对设置。即第一基板101的内侧表面与第二基板201的内侧表面相对设置。负性液晶层300夹在第一基板101和第二基板201之间。第一偏光片、第一垂直电极102和第一垂直配向层设置在第一基板101上。第二偏光片、第二垂直电极202、绝缘层203、第一水平电极2041、第二水平电极2042和第二垂直配向层设置在第二基板201上。
具体地，第一偏光片形成在第一基板101的外表面上，第二偏光片形成在第二基板201的外表面上。第一偏光片的透光轴和第二偏光片的透光轴正交。特别地，第一偏光片的透光轴沿0°方向延伸，第二偏光片的透光轴沿90°方向延伸。或者，第一偏光片的透光轴沿90°方向延伸，第二偏光片的透光轴沿0°方向延伸。
第一垂直电极102优选为平面电极。第一垂直电极102形成在第一基板101的内侧表面上。第一垂直配向层覆盖在第一垂直电极102的内侧表面上。
第二垂直电极202优选为平面电极。第二垂直电极202形成在第二基板201的内侧表面上。绝缘层203形成在第二垂直电极202的内侧表面上。第一水平电极2041和第二水平电极2042同层设置在绝缘层203的内侧表面上。第一水平电极2041和第二水平电极2042均优选为梳状电极。另外，第一水平电极2041的长度方向与第二水平电极2042的长度方向平行，并且与第一/第二偏光片的透光轴的延伸方向相平行。第二垂直配向层形成在由第一水平电极2041和第二水平电极2042构成的图形上。
下面结合图2a至图5阐述本实施例垂直配向型液晶显示装置的工作原理。
参照图2a和图2b，液晶显示装置在未加电的情况下，负性液晶分子垂直于基板表面排列。液晶显示装置显示为暗态。
参照图3a和图3b，控制液晶显示装置从图2a所示的暗态转换为图3a所示的亮态。具体地，向第一垂直电极102和第二垂直电极202供电，使两垂直电极间产生垂直电场。此时，负型液晶分子在垂直电场作用下旋转倒伏，液晶显示装置显示为亮态。这里，对于多象限垂直配向液晶显示装置来说，不同象限的负向液晶分子的倒伏方向不同。
参照图4a和图4b，控制液晶显示装置从图3a所示的亮态转换为图4a所示的暗态。首先，停止向第一垂直电极102和第二垂直电极202供电，同时开始向第一水平电极2041和第二水平电极2042供电，并使两水平电极间产生水平电场。此时，负型液晶分子在水平电场作用下转动到与水平电场垂直的方向，此时液晶显示装置显示为暗态。特别地，向两水平电极供电的持续时间范围为1-10ms。向两水平电极供电，并使水平电极间的电压差为2-10V。然后释放水平电场。
参照图5，根据穿透率计算公式
Figure PCTCN2015088402-appb-000001
可知：当β为0°时，无相位差，即
Figure PCTCN2015088402-appb-000002
为0°。此时，液晶显示装置的状态如图2a和图2b所示。当β不等于0°且α为45°时，穿透率T最大。此时，液晶显示装置的状态如图3a和图3b所示。当α为0°或者90°时，穿透率T为零。此时液晶显示装置的状态如图4a和图4b所示。液晶显示装置由亮态转换为暗态的过程为图3a到图4a的过程。值得注意的是，图4a和图2a中的液晶显示装置均处于暗态。即，液晶显示装置从图4a中所示的状态过渡到图2a中所示的状态，亮度不变。
可以看出，应用本实施例所述的垂直配向型液晶显示装置，在现有结构的基础上增加了第一水平电极2041和第二水平电极2042。通过两电极间的水平电场使负性液晶分子沿水平方向转动到偏光片的透光轴的方向，加速了液晶显示装置从亮态转换到暗态的过程，从而有效减小了下降时间。本实施例液晶显示装置的高速响应速度快，在显示高速动态画面时具有更佳的显示效果。
相比于现有技术，本实施例利用产生的水平电场加速了液晶分子的旋转，并未涉及液晶盒结构和液晶材料的改变。因此，本发明实施例在有效减小下降时间的同时不会影响液晶显示装置的其它优良特性，可行性强。
结合上述工作原理，本实施例液晶液晶显示装置还包括驱动电路。驱动电路包括水平驱动模块和垂直驱动模块。
具体地，水平驱动模块设置为控制液晶显示装置从亮态转变为暗态。特别地，水平驱动模块具体设置为：停止向第一垂直电极102和第二垂直电极202供电的同时，开始向第 一水平电极2041和第二水平电极2042供电，并使两水平电极间的电压差为第一预设电压差。当向两水平电极供电的时间达到预设时间段后，水平驱动模块停止向两水平电极供电。这里，第一预设电压差优选为2-10V。预设时间段优选为1-10ms。
垂直驱动模块，设置为控制液晶显示装置从暗态转变为亮态。特别地，垂直驱动模块具体设置为：向第一垂直电极102和第二垂直电极202供电，并使两垂直电极间的电压差为第二预设电压差。
相应地，本发明实施例还提供了一种用于驱动上述垂直配向型液晶显示装置的方法。本实施例的驱动方法包括：控制液晶显示装置从亮态转变为暗态。
如图6所示，是本实施例中控制液晶显示装置从亮态转变为暗态的方法的流程示意图。本实施例的控制液晶显示装置从亮态转变为暗态的方法，主要包括步骤1至步骤3。
在步骤1中，停止向第一垂直电极102和第二垂直电极202供电的同时，开始向第一水平电极2041和第二水平电极2042供电，并使两水平电极间的电压差为第一预设电压差。这里，第一预设电压差优选为2-10V。
在步骤2中，判断向两水平电极供电的时间是否达到预设时间段。这里，预设时间段优选为1-10ms。
在步骤3中，在判断出向两水平电极供电的时间达到预设时间段后，停止向两水平电极供电。
在本发明一优选的实施例中，上述驱动方法还包括控制液晶显示装置从暗态转变为亮态。本实施例控制液晶显示装置从暗态转变为亮态的方法为：向第一垂直电极102和第二垂直电极202供电，并使两垂直电极间的电压差为第二预设电压差。
可以看出，应用本实施例用于驱动垂直配向型液晶显示装置的方法，通过增加的两电极间的水平电场使负性液晶分子沿水平方向转动到偏光片的透光轴的方向，加速了液晶显示装置从亮态转换到暗态的过程，从而有效减小了下降时间。本实施例提高了液晶显示装置的高速响应速度，使该装置在显示高速动态画面时具有更佳的显示效果。
相比于现有技术，本实施例利用产生的水平电场加速了液晶分子的旋转，并未涉及液晶盒结构和液晶材料的改变。因此，本实施例在有效减小下降时间的同时不会影响液晶显示装置的其它优良特性，可行性强。
虽然本发明所公开的实施方式如上，但所述的内容只是为了便于理解本发明而采用的实施方式，并非用以限定本发明。任何本发明所属技术领域内的技术人员，在不脱离本发明所公开的精神和范围的前提下，可以在实施的形式上及细节上作任何的修改与变化，但本发明的保护范围，仍须以所附的权利要求书所界定的范围为准。

Claims (20)

  1. 一种垂直配向型液晶显示装置，包括：
    内侧相对设置的第一基板和第二基板，及设置在两基板间的负性液晶层；
    分别形成在所述第一基板和所述第二基板的外侧表面的第一偏光片和第二偏光片，两偏光片的透光轴正交；
    依次形成在所述第一基板的内侧表面上的第一垂直电极和第一垂直配向层；以及
    依次形成在所述第二基板的内侧表面上的第二垂直电极、绝缘层、第一水平电极、第二水平电极和第二垂直配向层，同层平行设置的两水平电极与所述第一/第二偏光片的透光轴平行。
  2. 根据权利要求1所述的液晶显示装置，其中，还包括驱动电路，所述驱动电路包括水平驱动模块，设置为控制所述液晶显示装置从亮态转变为暗态；
    所述水平驱动模块具体设置为：停止向所述第一垂直电极和所述第二垂直电极供电的同时，开始向所述第一水平电极和所述第二水平电极供电，并使两水平电极间的电压差为第一预设电压差；当向两水平电极供电的时间达到预设时间段后，停止向两水平电极供电。
  3. 根据权利要求2所述的液晶显示装置，其中，所述第一预设电压差为2-10V，和/或，所述预设时间段为1-10ms。
  4. 根据权利要求2所述的液晶显示装置，其中，所述驱动电路还包括垂直驱动模块，设置为控制所述液晶显示装置从暗态转变为亮态；
    所述垂直驱动模块具体设置为：向所述第一垂直电极和所述第二垂直电极供电，并使两垂直电极间的电压差为第二预设电压差。
  5. 根据权利要求1所述的液晶显示装置，其中，所述第一垂直电极和所述第二垂直电极均为平面电极。
  6. 根据权利要求5所述的液晶显示装置，其中，还包括驱动电路，所述驱动电路包括水平驱动模块，设置为控制所述液晶显示装置从亮态转变为暗态；
    所述水平驱动模块具体设置为：停止向所述第一垂直电极和所述第二垂直电极供电的同时，开始向所述第一水平电极和所述第二水平电极供电，并使两水平电极间的电压差为第一预设电压差；当向两水平电极供电的时间达到预设时间段后，停止向两水平电极供电。
  7. 根据权利要求6所述的液晶显示装置，其中，所述第一预设电压差为2-10V，和/或，所述预设时间段为1-10ms。
  8. 根据权利要求6所述的液晶显示装置，其中，所述驱动电路还包括垂直驱动模块，设置为控制所述液晶显示装置从暗态转变为亮态；
    所述垂直驱动模块具体设置为：向所述第一垂直电极和所述第二垂直电极供电，并使两垂直电极间的电压差为第二预设电压差。
  9. 根据权利要求5所述的液晶显示装置，其中，所述第一水平电极和/或所述第二水平电极为梳状电极。
  10. 根据权利要求9所述的液晶显示装置，其中，还包括驱动电路，所述驱动电路包括水平驱动模块，设置为控制所述液晶显示装置从亮态转变为暗态；
    所述水平驱动模块具体设置为：停止向所述第一垂直电极和所述第二垂直电极供电的同时，开始向所述第一水平电极和所述第二水平电极供电，并使两水平电极间的电压差为第一预设电压差；当向两水平电极供电的时间达到预设时间段后，停止向两水平电极供电。
  11. 根据权利要求10所述的液晶显示装置，其中，所述第一预设电压差为2-10V，和/或，所述预设时间段为1-10ms。
  12. 根据权利要求10所述的液晶显示装置，其中，所述驱动电路还包括垂直驱动模块，设置为控制所述液晶显示装置从暗态转变为亮态；
    所述垂直驱动模块具体设置为：向所述第一垂直电极和所述第二垂直电极供电，并使两垂直电极间的电压差为第二预设电压差。
  13. 根据权利要求9所述的液晶显示装置，其中，
    所述第一偏光片的透光轴沿0°方向延伸，所述第二偏光片的透光轴沿90°方向延伸；或者
    所述第一偏光片的透光轴沿90°方向延伸，所述第二偏光片的透光轴沿0°方向延伸。
  14. 根据权利要求13所述的液晶显示装置，其中，还包括驱动电路，所述驱动电路包括水平驱动模块，设置为控制所述液晶显示装置从亮态转变为暗态；
    所述水平驱动模块具体设置为：停止向所述第一垂直电极和所述第二垂直电极供电的同时，开始向所述第一水平电极和所述第二水平电极供电，并使两水平电极间的电压差为第一预设电压差；当向两水平电极供电的时间达到预设时间段后，停止向两水平电极供电。
  15. 根据权利要求14所述的液晶显示装置，其中，所述第一预设电压差为2-10V，和/或，所述预设时间段为1-10ms。
  16. 根据权利要求14所述的液晶显示装置，其中，所述驱动电路还包括垂直驱动模块，设置为控制所述液晶显示装置从暗态转变为亮态；
    所述垂直驱动模块具体设置为：向所述第一垂直电极和所述第二垂直电极供电，并使两垂直电极间的电压差为第二预设电压差。
  17. 一种用于驱动如权利要求1所述的垂直配向型液晶显示装置的方法，包括控制所述液晶显示装置从亮态转变为暗态；
    控制所述液晶显示装置从亮态转变为暗态，包括：
    停止向所述第一垂直电极和所述第二垂直电极供电的同时，开始向所述第一水平电极和所述第二水平电极供电，并使两水平电极间的电压差为第一预设电压差；
    判断向两水平电极供电的时间是否达到预设时间段；
    在判断出向两水平电极供电的时间达到预设时间段后，停止向两水平电极供电。
  18. 根据权利要求17所述的方法，其中，还包括控制所述液晶显示装置从亮态转变为暗态；
    控制所述液晶显示装置从亮态转变为暗态，包括：向所述第一垂直电极和所述第二垂直电极供电，并使两垂直电极间的电压差为第二预设电压差。
  19. 根据权利要求17所述的方法，其中：所述第一预设电压差为2-10V，和/或，所述预设时间段为1-10ms。
  20. 根据权利要求19所述的方法，其中，还包括控制所述液晶显示装置从亮态转变为暗态；
    控制所述液晶显示装置从亮态转变为暗态，包括：向所述第一垂直电极和所述第二垂直电极供电，并使两垂直电极间的电压差为第二预设电压差。
PCT/CN2015/088402 2015-08-14 2015-08-28 垂直配向型液晶显示装置及其驱动方法 Ceased WO2017028334A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/897,695 US20180157074A1 (en) 2015-08-14 2015-08-28 Liquid crystal display device in perpendicular alignment and method of driving the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510498384.9 2015-08-14
CN201510498384.9A CN105093768B (zh) 2015-08-14 2015-08-14 垂直配向型液晶显示装置及其驱动方法

Publications (1)

Publication Number Publication Date
WO2017028334A1 true WO2017028334A1 (zh) 2017-02-23

Family

ID=54574529

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/088402 Ceased WO2017028334A1 (zh) 2015-08-14 2015-08-28 垂直配向型液晶显示装置及其驱动方法

Country Status (3)

Country Link
US (1) US20180157074A1 (zh)
CN (1) CN105093768B (zh)
WO (1) WO2017028334A1 (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10186351A (ja) * 1996-12-24 1998-07-14 Hitachi Ltd 液晶表示装置
JP2001108972A (ja) * 1999-10-05 2001-04-20 Nippon Telegr & Teleph Corp <Ntt> 光学素子および該光学素子を用いた表示装置
CN103620483A (zh) * 2011-06-27 2014-03-05 夏普株式会社 液晶驱动装置和液晶显示装置
CN103874955A (zh) * 2011-10-14 2014-06-18 夏普株式会社 液晶驱动方法和液晶显示装置
CN104280952A (zh) * 2014-10-10 2015-01-14 上海中航光电子有限公司 一种液晶显示面板、其驱动方法及显示装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI563321B (en) * 2013-07-10 2016-12-21 Innolux Corp Liquid crystal display device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10186351A (ja) * 1996-12-24 1998-07-14 Hitachi Ltd 液晶表示装置
JP2001108972A (ja) * 1999-10-05 2001-04-20 Nippon Telegr & Teleph Corp <Ntt> 光学素子および該光学素子を用いた表示装置
CN103620483A (zh) * 2011-06-27 2014-03-05 夏普株式会社 液晶驱动装置和液晶显示装置
CN103874955A (zh) * 2011-10-14 2014-06-18 夏普株式会社 液晶驱动方法和液晶显示装置
CN104280952A (zh) * 2014-10-10 2015-01-14 上海中航光电子有限公司 一种液晶显示面板、其驱动方法及显示装置

Also Published As

Publication number Publication date
CN105093768B (zh) 2018-10-09
US20180157074A1 (en) 2018-06-07
CN105093768A (zh) 2015-11-25

Similar Documents

Publication Publication Date Title
US9897872B2 (en) Liquid crystal display panel with switchable viewing angle and driving method thereof
CN110780477A (zh) 一种液晶显示屏、其显示方法及显示装置
Matsushima et al. 43.2: new fast response time in‐plane switching liquid crystal mode
CN103176317B (zh) 液晶像素电极结构、阵列基板及显示装置
US9454047B2 (en) Liquid crystal display panel, method of driving the same and display device
US20210325737A1 (en) Display panel, display apparatus and anti-peeping method
US9348178B2 (en) Liquid crystal display panel and liquid crystal display device
TWI501013B (zh) 三態液晶顯示面板
WO2016206130A1 (zh) 蓝相液晶显示装置及其驱动方法
US10222639B2 (en) Liquid crystal panel, liquid crystal display device and method for improving liquid crystal rotation obstacle
US9588391B2 (en) Liquid crystal panel, display device, and process for manufacturing liquid crystal panel
WO2013075518A1 (zh) 阵列基板及液晶面板
WO2017133096A1 (zh) 显示面板和显示装置
US20190384123A1 (en) Display panel and method of manufacturing display panel
WO2013097515A1 (zh) 阵列基板、液晶显示装置及取向摩擦方法
WO2015100783A1 (zh) 显示模组及液晶显示装置
WO2017028334A1 (zh) 垂直配向型液晶显示装置及其驱动方法
JP2011099909A (ja) 液晶表示装置
CN205899210U (zh) 一种显示面板及显示装置
CN101562199A (zh) 薄膜晶体管结构
TW200528895A (en) Liquid crystal display device
US20160187744A1 (en) Method and device for enhancing response time of positive-negative mixed liquid crystals
CN107272278A (zh) 液晶显示装置
CN107209431A (zh) 立式螺旋铁电液晶显示单元
US7233381B2 (en) Optically self-compensated birefringence liquid crystal display comprising slits formed in the pixel electrode

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15901538

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 14897695

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15901538

Country of ref document: EP

Kind code of ref document: A1