WO2020151120A1 - 液晶像素电路结构单元、液晶显示面板及其驱动方法 - Google Patents

液晶像素电路结构单元、液晶显示面板及其驱动方法 Download PDF

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WO2020151120A1
WO2020151120A1 PCT/CN2019/084487 CN2019084487W WO2020151120A1 WO 2020151120 A1 WO2020151120 A1 WO 2020151120A1 CN 2019084487 W CN2019084487 W CN 2019084487W WO 2020151120 A1 WO2020151120 A1 WO 2020151120A1
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Prior art keywords
liquid crystal
pixel electrode
circuit structure
data line
electrically connected
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PCT/CN2019/084487
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English (en)
French (fr)
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郝思坤
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深圳市华星光电半导体显示技术有限公司
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Publication of WO2020151120A1 publication Critical patent/WO2020151120A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • 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
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • 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
    • G09G3/3611—Control of matrices with row and column drivers

Definitions

  • the present disclosure relates to the field of display technology, in particular to a liquid crystal pixel circuit structural unit, a liquid crystal display panel, and a method for driving the liquid crystal pixel circuit structural unit.
  • Transparent displays can display images while still being able to see the background behind, which may be a new development direction for the current display industry and will bring users a better life experience.
  • Transparent displays have many unique properties, such as thinness, light weight, and low power consumption. They can be applied to smart windows, public information displays (PID), discussion walls, head-mounted displays (HMD) and popular consumer electronics products.
  • PID public information displays
  • HMD head-mounted displays
  • the current transparent display technology can be divided into organic light emitting diode (OLED), cholesteric liquid crystal (Cholesteric liquid crystal) Liquid Crystal, CH-LC), and polymer-dispersed liquid crystal (Polymer-Dispersed Liquid Crystal, PD-LC).
  • OLED organic light emitting diode
  • CH-LC cholesteric liquid crystal
  • PD-LC polymer-dispersed liquid crystal
  • the OLED transparent display is a self-luminous mode, when the ambient light brightness is high, it is easy to cause the visibility of the background to decrease.
  • the current technology of OLED transparent display technology in large-size products is not mature enough to be mass-produced.
  • FIG. 1 is a conventional liquid crystal pixel circuit structure unit, which includes a data line 1, a gate line 2, a transistor 3, and a pixel electrode 4.
  • the existing CH-LC and PD-LC both require a high driving circuit voltage, and the current source driver integrated circuit (Source Driver IC) cannot meet this type of driving demand.
  • the present disclosure provides a liquid crystal pixel circuit structure unit, including: a first pixel electrode, a first data line electrically connected to the first pixel electrode, and a first data line electrically connected to and controlling the first data The first transistor of the line, a first gate line electrically connected to the first transistor, a second data line, and a second gate line, wherein the circuit structure unit of the liquid crystal pixel further includes:
  • a second pixel electrode, and a second transistor wherein
  • the second pixel electrode and the first pixel electrode are overlapped and insulated from each other;
  • the second data line is electrically connected to the second pixel electrode through the second transistor, and the second gate line is electrically connected to the second transistor.
  • the liquid crystal pixel circuit structure unit further includes an insulating layer disposed between the first pixel electrode and the second pixel electrode.
  • the first pixel electrode and the second pixel electrode are transparent electrodes.
  • the material of the transparent electrode includes one of the following: Indium Tin Oxide (IOT), nickel-gold bimetallic thin layer (Ni/Au), and silver/silver zinc oxide (Ag/AZO) double layer structure.
  • IOT Indium Tin Oxide
  • Ni/Au nickel-gold bimetallic thin layer
  • Ag/AZO silver/silver zinc oxide
  • the liquid crystal pixel circuit structure unit further includes a first channel layer and a second channel layer, and the first pixel electrode passes through the first channel layer and the first data layer.
  • the second pixel electrode is electrically connected to the second data line through the second channel layer.
  • the liquid crystal pixel circuit structure unit further includes a first channel layer and a second channel layer, and the first pixel electrode is electrically connected through the first channel layer and the first data line. Connected, the second pixel electrode is electrically connected to a second data line through the second channel layer.
  • the present disclosure also provides a liquid crystal display panel including a liquid crystal pixel array substrate and a control unit.
  • the control unit is used to control the liquid crystal pixel array substrate, the liquid crystal pixel array substrate includes a substrate, and a plurality of liquid crystal pixel circuit structure units are arranged on the substrate, wherein each liquid crystal pixel circuit structure unit includes: A first pixel electrode, a first data line electrically connected to the first pixel electrode, a first transistor electrically connected to and controlling the first data line, and a first gate electrically connected to the first transistor Line, a second data line, and a second gate line, wherein the circuit structure unit of the liquid crystal pixel further includes:
  • a second pixel electrode, and a second transistor wherein
  • the second pixel electrode and the first pixel electrode are overlapped and insulated from each other on the substrate;
  • the second data line is electrically connected to the second pixel electrode through the second transistor, and the second gate line is electrically connected to the second transistor.
  • the liquid crystal pixel circuit structure unit further includes an insulating layer disposed between the first pixel electrode and the second pixel electrode.
  • the first pixel electrode and the second pixel electrode are transparent electrodes.
  • the material of the transparent electrode includes one of the following: Indium Tin Oxide (IOT), nickel-gold bimetallic thin layer (Ni/Au), and silver/silver zinc oxide (Ag/AZO) double layer structure.
  • IOT Indium Tin Oxide
  • Ni/Au nickel-gold bimetallic thin layer
  • Ag/AZO silver/silver zinc oxide
  • the liquid crystal pixel circuit structure unit further includes a first channel layer and a second channel layer, and the first pixel electrode passes through the first channel layer and the first data layer.
  • the second pixel electrode is electrically connected to the second data line through the second channel layer.
  • the present disclosure also provides a method for driving a liquid crystal pixel circuit structural unit, wherein the liquid crystal pixel circuit structural unit includes: a first pixel electrode, a first data line electrically connected to the first pixel electrode, and an electrical connection And control the first transistor of the first data line, a first gate line electrically connected to the first transistor, a second data line, and a second gate line, wherein the circuit of the liquid crystal pixel
  • the structural unit further includes: a second pixel electrode and a second transistor; wherein the second pixel electrode and the first pixel electrode are overlapped and insulated from each other; and the second data line passes through the first pixel electrode
  • Two transistors are electrically connected to the second pixel electrode, and the second gate line is electrically connected to the second transistor.
  • the method of driving a liquid crystal pixel circuit structural unit includes:
  • a high-level voltage is provided for the first data line and the first gate line to turn on the first transistor and charge the first pixel electrode, wherein:
  • the high-level voltage of the second data line and the second gate line is provided to turn on the second transistor and charge the second pixel electrode.
  • the liquid crystal pixel circuit structure unit further includes an insulating layer disposed between the first pixel electrode and the second pixel electrode.
  • the first pixel electrode and the second pixel electrode are transparent electrodes.
  • the material of the transparent electrode includes one of the following: Indium Tin Oxide (IOT), nickel-gold bimetallic thin layer (Ni/Au), and silver/silver zinc oxide (Ag/AZO) double layer structure.
  • IOT Indium Tin Oxide
  • Ni/Au nickel-gold bimetallic thin layer
  • Ag/AZO silver/silver zinc oxide
  • the liquid crystal pixel circuit structure unit further includes a first channel layer and a second channel layer, and the first pixel electrode passes through the first channel layer and the first data layer.
  • the second pixel electrode is electrically connected to the second data line through the second channel layer.
  • the liquid crystal pixel circuit structure unit, the liquid crystal display panel, and the method for driving the liquid crystal pixel circuit structure unit provided by the present disclosure include a first pixel electrode and a second pixel electrode.
  • the second pixel electrode and the first pixel electrode are overlapped and insulated from each other. Therefore, the first data line can charge the first pixel electrode first, and then use the second pair of second pixel electrodes to charge the second pixel electrode.
  • the voltage of the pixel electrode can be increased so that both ends of the liquid crystal A higher voltage difference is formed. It can achieve high driving voltage and meet the driving requirements of CH-LC and PD-LC.
  • FIG. 1 shows a schematic structural diagram of a conventional liquid crystal pixel circuit structure unit
  • FIG. 2 shows a schematic structural diagram of a liquid crystal pixel circuit structure unit according to an embodiment of the present disclosure
  • FIG. 3 shows a schematic structural diagram of a liquid crystal pixel array substrate according to an embodiment of the present disclosure
  • FIG. 4 shows a schematic flowchart of a driving method of a liquid crystal pixel circuit structural unit according to an embodiment of the present disclosure
  • FIG. 5 shows a schematic diagram of an equivalent circuit of a structure unit of a driving liquid crystal pixel circuit according to an embodiment of the present disclosure
  • FIG. 6 shows a schematic diagram of a driving sequence of a method for driving a liquid crystal pixel circuit structural unit according to an embodiment of the present disclosure
  • FIG. 7 shows a schematic diagram of a manufacturing process of a liquid crystal pixel circuit structural unit according to an embodiment of the present disclosure
  • FIG. 8 shows a schematic cross-sectional structure diagram of the liquid crystal pixel circuit structure unit of an embodiment of FIG. 2 along the line AA';
  • FIG. 9 shows a schematic side view of the structure of a liquid crystal display panel according to an embodiment of the present disclosure.
  • the present disclosure of an embodiment of the present disclosure provides a liquid crystal pixel circuit structure unit 100, including: a first pixel electrode 10, a first data line 11 electrically connected to the first pixel electrode 10, a A first transistor 12 electrically connected to and controlling the first data line 11, a first gate line 13 electrically connected to the first transistor 12, a second data line 21, and a second gate line 23, Wherein, the liquid crystal pixel circuit structure unit 100 further includes:
  • the second pixel electrode 20 is overlapped and disposed under the first pixel electrode 10 and insulated from each other;
  • the second data line 21 is electrically connected to the second pixel electrode 20 through the second transistor 22, and the second gate line 23 is electrically connected to the second transistor 22.
  • the liquid crystal pixel circuit structure unit 100 further includes an insulating layer 30 disposed between the first pixel electrode 10 and the second pixel electrode 20 between.
  • the liquid crystal pixel circuit structure unit 100 is disposed on a substrate 200. There are insulating materials between each circuit, such as an insulating layer 30, for proper insulation.
  • the first pixel electrode 10 and the second pixel electrode 20 are transparent electrodes.
  • the material of the transparent electrode may be indium tin oxide (Indium tin oxide). Tin Oxide, IOT), nickel-gold bimetallic thin layer (Ni/Au), silver/silver zinc oxide (Ag/AZO) double-layer structure, etc., the present disclosure is not limited thereto.
  • the liquid crystal pixel circuit structure unit 100 further includes a first channel layer 14 and a second channel layer 24, and the first pixel electrode 10 passes through the first channel layer 14 and The first data line 11 is electrically connected, and the second pixel electrode 20 is electrically connected to the second data line 21 through the second channel layer 24.
  • the present disclosure also provides a liquid crystal display panel 1000.
  • the liquid crystal display panel 1000 includes a liquid crystal pixel array substrate 1001 and a control unit 1002.
  • the control unit 1002 is used to control the liquid crystal pixel number array substrate 1001.
  • the liquid crystal pixel number array substrate 1001 includes a substrate 200 and a plurality of liquid crystal pixel circuit structure units 100 disposed on the substrate 200, wherein each The liquid crystal pixel circuit structure unit 100 includes: a first pixel electrode 10, a first data line 11 electrically connected to the first pixel electrode 10, a first transistor 12 electrically connected to and controlling the first data line 11, A first gate line 13 electrically connected to the first transistor 12, a second data line 21, and a second gate line 23, wherein the circuit structure unit 100 of the liquid crystal pixel further includes:
  • the second pixel electrode 20 and the first pixel electrode 10 are overlapped and insulated from each other on the substrate 200;
  • the second data line 21 is electrically connected to the second pixel electrode 20 through the second transistor 22, and the second gate line 23 is electrically connected to the second transistor 22.
  • a plurality of liquid crystal pixel circuit structure units 100 share data lines and gate lines. This part is similar to the conventional technology, and the disclosure is not specifically described herein.
  • the liquid crystal pixel circuit structure unit 100 further includes an insulating layer 30 disposed between the first pixel electrode 10 and the second pixel electrode 20 between.
  • the first pixel electrode and the second pixel electrode are transparent electrodes.
  • the material of the transparent electrode may be indium tin oxide (Indium tin oxide). Tin Oxide, IOT), nickel-gold bimetallic thin layer (Ni/Au), silver/silver zinc oxide (Ag/AZO) double-layer structure, etc., the present disclosure is not limited thereto.
  • the liquid crystal pixel circuit structure unit further includes a first channel layer 14 and a second channel layer 24, and the first pixel electrode 10 passes through the first channel layer 14 and the second channel layer 14 A data line 11 is electrically connected, and the second pixel electrode 20 is electrically connected to the second data line 21 through the second channel layer 24.
  • the present disclosure also provides a method for driving a liquid crystal pixel circuit structural unit, wherein the liquid crystal pixel circuit structural unit 100 includes: a first pixel electrode 10, and a first pixel electrode 10 electrically connected to the first pixel A first data line 11 of the electrode 10, a first transistor 12 electrically connected to and controlling the first data line 11, a first gate line 13 electrically connected to the first transistor 12, and a second data line 21 , And a second gate line 23, wherein the liquid crystal pixel circuit structure unit 100 further includes: a second pixel electrode 20, and a second transistor 22; wherein, the second pixel electrode 20 and the first A pixel electrode 10 is overlapped and insulated from each other; and the second data line 21 is electrically connected to the second pixel electrode 20 through the second transistor 2, and the second gate line 23 is electrically connected to the first Two transistors 22, wherein the method of driving a liquid crystal pixel circuit structural unit includes:
  • Block 101 Provide a high level voltage of the first data line and the first gate line to turn on the first transistor and charge the first pixel electrode, wherein:
  • Block 102 Provide the high-level voltage of the second data line and the second gate line to turn on the second transistor and charge the second pixel electrode.
  • each pixel contains two equivalent capacitors: liquid crystal capacitor Clc and coupling capacitor Cb.
  • the liquid crystal capacitor Clc is formed by the common electrode of the CF substrate and the pixel electrode of the array substrate, and the coupling capacitor Cb is formed by the second pixel electrode 20 and the first pixel electrode 10 which are overlapped.
  • the liquid crystal pixel circuit structure unit further includes an insulating layer (not shown), which is disposed between the first pixel electrode 10 and the second pixel electrode 20.
  • the first pixel electrode 10 and the second pixel electrode 20 are transparent electrodes.
  • the material of the transparent electrode may be indium tin oxide (Indium tin oxide). Tin Oxide, IOT), nickel-gold bimetallic thin layer (Ni/Au), silver/silver zinc oxide (Ag/AZO) double-layer structure, etc., the present disclosure is not limited thereto.
  • the liquid crystal pixel circuit structure unit further includes a first channel layer 14 and a second channel layer 24, and the first pixel electrode 10 passes through the first channel layer 14 and the second channel layer 14 A data line 11 is electrically connected, and the second pixel electrode 20 is electrically connected to the second data line 21 through the second channel layer 24.
  • the manufacturing process of the liquid crystal pixel circuit structure unit 100 of the embodiment of the present disclosure includes: fabricating gate lines 13, 23 on a substrate; fabricating transistors 12, 22 and their electrodes on the substrate; Forming data lines 11 and 21; forming a second channel layer 24; forming a second pixel electrode 20; forming an insulating layer 30 (refer to FIGS. 2 and 8); forming a first channel layer 14; and forming a first pixel electrode 10 .
  • the liquid crystal pixel circuit structure unit, the liquid crystal pixel array substrate, and the method for driving the liquid crystal pixel circuit structure unit of the embodiment of the present disclosure include a first pixel electrode and a second pixel electrode, and the second pixel electrode
  • the first pixel electrodes are overlapped and insulated from each other. Therefore, the first data line can charge the first pixel electrode first, and then use the second pair of second pixel electrodes to charge the second pixel electrode.
  • the voltage of the pixel electrode can be increased so that both ends of the liquid crystal A higher voltage difference is formed. It can achieve high driving voltage and meet the driving requirements of CH-LC and PD-LC.

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Abstract

一种液晶像素电路结构单元（100）、液晶显示面板（1000）及驱动液晶像素电路结构单元（100）的方法。液晶像素电路结构单元（100）包括一第一像素电极（10）、以及一第二像素电极（20）。第二像素电极（20）与第一像素电极（10）重迭设置且彼此绝缘。

Description

液晶像素电路结构单元、液晶显示面板及其驱动方法 技术领域
本揭示涉及显示技术领域，特别涉及一种液晶像素电路结构单元、液晶显示面板和驱动液晶像素电路结构单元的方法。
 背景技术
透明显示器可以在显示图像同时仍看得到后面的背景，有可能为当前的显示行业新的发展方向，将给用户带来更好的生活体验。透明显示器具有许多独特的性能，如薄型、重量轻、功耗低等，可以应用在智能窗、公共信息显示（PID）、讨论墙、头戴式显示器（HMD）和流行的消费电子产品上面。
目前透明显示技术可分为有机发光二极管（OLED）、胆甾液晶（Cholesteric Liquid Crystal, CH-LC），和聚合物分散液晶（Polymer-Dispersed Liquid Crystal, PD-LC）。OLED透明显示器为自发光模式，当环境光亮度很高时，容易导致背景的能见度下降。另外目前OLED透明显示技术在大尺寸产品的技术还不成熟，不能大规模量产。
图1为习知的液晶像素电路结构单元，包括一数据线1、一闸极线2、一晶体管3及一像素电极4。但是现有的CH-LC和PD-LC均需要高驱动电路电压，目前的源極驅動積體電路（Source Driver IC）不能满足该类驱动需求。
因此，目前亟需一种液晶像素电路结构单元、液晶显示面板和驱动液晶像素电路结构单元的方法以解决上述问题。
 技术问题
现有的现有的CH-LC和PD-LC均需要高驱动电路电压，目前的源極驅動積體電路（Source Driver IC）不能满足该类驱动需求。
 技术解决方案
为解决上述技术问题，本揭示提供一种液晶像素电路结构单元，包括：一第一像素电极、一电连接所述第一像素电极的第一数据线、一电连接并控制所述第一数据线的第一晶体管、一电连接所述第一晶体管的第一闸极线，一第二数据线、以及一第二闸极线，其中，所述液晶像素的电路结构单元更包括:
一第二像素电极、以及一第二晶体管;其中
所述第二像素电极与所述第一像素电极重迭设置且彼此绝缘;且
所述第二数据线通过所述第二晶体管与所述第二像素电极电连接，所述第二闸极线电连接所述第二晶体管。
于本揭示其中的一实施例中，所述液晶像素电路结构单元更包括一绝缘层，设置于所述第一像素电极与所述第二像素电极之间。
于本揭示其中的一实施例中，所述第一像素电极与所述第二像素电极为透明电极。
于本揭示其中的一实施例中，所述透明电极的材料包含下列之一：氧化铟锡(Indium Tin Oxide , IOT)、镍金双金属薄层(Ni/Au)、及银/氧化银锌(Ag/AZO)双层结构。
于本揭示其中的一实施例中，所述液晶像素电路结构单元更包括一第一通道层与一第二通道层，所述第一像素电极通过所述第一通道层与所述第一数据线电连接，所述第二像素电极通过所述第二通道层与所述第二数据线电连接。
于本揭示其中的一实施例中，所述液晶像素电路结构单元更包括一第一通道层与一第二通道层，所述第一像素电极通过所述第一通道层与第一数据线电连接，所述第二像素电极通过所述第二通道层与第二数据线电连接。
本揭示还提供一种液晶显示面板包括一液晶像素数阵列基板、及一控制单元。所述控制单元用以控制所述液晶像素数阵列基板，所述液晶像素数阵列基板包括一基板、及多个液晶像素电路结构单元设置于基板上，其中，每一液晶像素电路结构单元包括：一第一像素电极、一电连接所述第一像素电极的第一数据线、一电连接并控制所述第一数据线的第一晶体管、一电连接所述第一晶体管的第一闸极线，一第二数据线、以及一第二闸极线，其中，所述液晶像素的电路结构单元更包括:
一第二像素电极、以及一第二晶体管;其中
所述第二像素电极与所述第一像素电极在所述基板上重迭设置且彼此绝缘;且
所述第二数据线通过所述第二晶体管与所述第二像素电极电连接，所述第二闸极线电连接所述第二晶体管。
于本揭示其中的一实施例中，所述液晶像素电路结构单元更包括一绝缘层，设置于所述第一像素电极与所述第二像素电极之间。
于本揭示其中的一实施例中，所述第一像素电极与所述第二像素电极为透明电极。
于本揭示其中的一实施例中，所述透明电极的材料包含下列之一：氧化铟锡(Indium Tin Oxide , IOT)、镍金双金属薄层(Ni/Au)、及银/氧化银锌(Ag/AZO)双层结构。
于本揭示其中的一实施例中，所述液晶像素电路结构单元更包括一第一通道层与一第二通道层，所述第一像素电极通过所述第一通道层与所述第一数据线电连接，所述第二像素电极通过所述第二通道层与所述第二数据线电连接。
本揭示还提供一种驱动液晶像素电路结构单元的方法，其中，所述液晶像素电路结构单元包括：一第一像素电极、一电连接所述第一像素电极的第一数据线、一电连接并控制所述第一数据线的第一晶体管、一电连接所述第一晶体管的第一闸极线，一第二数据线、以及一第二闸极线，其中，所述液晶像素的电路结构单元更包括: 一第二像素电极、以及一第二晶体管;其中，所述第二像素电极与所述第一像素电极重迭设置且彼此绝缘;且所述第二数据线通过所述第二晶体管与所述第二像素电极电连接，所述第二闸极线电连接所述第二晶体管，其中，所述驱动液晶像素电路结构单元的方法包括：
提供所述第一数据线及所述第一闸极线一高准位电压以开启第一晶体管并且对第一像素电极充电，其中：
提供所述第二数据线及所述第二闸极线所述高准位电压以开启第二晶体管并且对第二像素电极充电。
于本揭示其中的一实施例中，所述液晶像素电路结构单元更包括一绝缘层，设置于所述第一像素电极与所述第二像素电极之间。
于本揭示其中的一实施例中，所述第一像素电极与所述第二像素电极为透明电极。
于本揭示其中的一实施例中，所述透明电极的材料包含下列之一：氧化铟锡(Indium Tin Oxide , IOT)、镍金双金属薄层(Ni/Au)、及银/氧化银锌(Ag/AZO)双层结构。
于本揭示其中的一实施例中，所述液晶像素电路结构单元更包括一第一通道层与一第二通道层，所述第一像素电极通过所述第一通道层与所述第一数据线电连接，所述第二像素电极通过所述第二通道层与所述第二数据线电连接。
 有益效果
相较于现有技术，为解决上述技术问题，本揭示提供的液晶像素电路结构单元、液晶显示面板和驱动液晶像素电路结构单元的方法，包括第一像素电极、以及第二像素电极且所述第二像素电极与所述第一像素电极重迭设置且彼此绝缘。因此，可以第一数据线先对第一像素电极充电，然后以第二对第二像素电极充电，通过第一像素电极与第二像素电极的电容耦合，提升像素电极的电压，使液晶两端形成较高的电压差。能实现高驱动电压，满足CH-LC和PD-LC的驱动需求。
 附图说明
图1显示一习知的液晶像素电路结构单元的结构示意图；
图2显示根据本揭示的一实施例的液晶像素电路结构单元的结构示意图；
图3显示根据本揭示的一实施例的液晶像素阵列基板的结构示意图；
图4显示根据本揭示的一实施例的液晶像素电路结构单元的驱动方法的流程方块示意图；
图5显示根据本揭示的一实施例的驱动液晶像素电路结构单元的等效电路示意图；
图6显示根据本揭示的一实施例的驱动液晶像素电路结构单元的方法的驱动时序示意图；
图7显示根据本揭示的一实施例的液晶像素电路结构单元的制做过程示意图；
图8显示图2一实施例的液晶像素电路结构单元沿AA’线的剖面结构示意图；及
图9显示根据本揭示的一实施例的液晶显示面板的结构侧视示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本揭示可用以实施的特定实施例。
为了让本揭示的上述及其他目的、特征、优点能更明显易懂，下文将特举本揭示优选实施例，并配合所附图式，作详细说明如下。再者，本揭示所提到的方向用语，例如上、下、顶、底、前、后、左、右、内、外、侧层、周围、中央、水平、横向、垂直、纵向、轴向、径向、最上层或最下层等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本揭示，而非用以限制本揭示。
在图中，结构相似的单元是以相同标号表示。
参照图2，本揭示的一实施例的本揭示提供一种液晶像素电路结构单元100，包括：一第一像素电极10、一电连接所述第一像素电极10的第一数据线11、一电连接并控制所述第一数据线11的第一晶体管12、一电连接所述第一晶体管12的第一闸极线13，一第二数据线21、以及一第二闸极线23，其中，所述液晶像素电路结构单元100更包括:
一第二像素电极20、以及一第二晶体管22;其中
所述第二像素电极20重迭设置于所述第一像素电极10的下方且彼此绝缘;且
所述第二数据线21通过所述第二晶体管22与所述第二像素电极20电连接，所述第二闸极线23电连接所述第二晶体管22。
参照图2与图8，于本揭示其中的一实施例中，所述液晶像素电路结构单元100更包括一绝缘层30，设置于所述第一像素电极10与所述第二像素电极20之间。
具体的，所述液晶像素电路结构单元100设置于一基板200上。各线路之间均有绝缘材料，例如绝缘层30，进行适当的绝缘。
于本揭示其中的一实施例中，所述第一像素电极10与所述第二像素电极20为透明电极。
具体的，透明电极的材料可为氧化铟锡(Indium Tin Oxide , IOT)、镍金双金属薄层(Ni/Au)、银/氧化银锌(Ag/AZO)双层结构等等，本揭示不限于此。
于本揭示其中的一实施例中，所述液晶像素电路结构单元100更包括一第一通道层14与一第二通道层24，所述第一像素电极10通过所述第一通道层14与第一数据线11电连接，所述第二像素电极20通过所述第二通道层24与第二数据线电21连接。
参照图3、 2與9，本揭示还提供一种液晶显示面板1000。所述液晶显示面板1000包括一液晶像素数阵列基板1001、及一控制单元1002。所述控制单元1002用以控制所述液晶像素数阵列基板1001，所述液晶像素数阵列基板1001，包括一基板200、及多个液晶像素电路结构单元100设置于基板200上，其中，每一液晶像素电路结构单元100包括：一第一像素电极10、一电连接所述第一像素电极10的第一数据线11、一电连接并控制所述第一数据线11的第一晶体管12、一电连接所述第一晶体管12的第一闸极线13，一第二数据线21、以及一第二闸极线23，其中，所述液晶像素的电路结构单元100更包括:
一第二像素电极20、以及一第二晶体管22;其中
所述第二像素电极20与所述第一像素电极10在所述基板200上重迭设置且彼此绝缘;且
所述第二数据线21通过所述第二晶体管22与所述第二像素电极20电连接，所述第二闸极线23电连接所述第二晶体管22。
参照图3，具体的，多个液晶像素电路结构单元100共享数据线与闸极线，此部分与习知技术类似，本揭示于此不特别说明。
参照图2与图8，于本揭示其中的一实施例中，所述液晶像素电路结构单元100更包括一绝缘层30，设置于所述第一像素电极10与所述第二像素电极20之间。
于本揭示其中的一实施例中，所述第一像素电极与所述第二像素电极为透明电极。
具体的，透明电极的材料可为氧化铟锡(Indium Tin Oxide , IOT)、镍金双金属薄层(Ni/Au)、银/氧化银锌(Ag/AZO)双层结构等等，本揭示不限于此。
于本揭示其中的一实施例中，所述液晶像素电路结构单元更包括一第一通道层14与一第二通道层24，所述第一像素电极10通过所述第一通道层14与第一数据线11电连接，所述第二像素电极20通过所述第二通道层24与第二数据线21电连接。
参照图4、3与2，本揭示还提供一种驱动液晶像素电路结构单元的方法，其中，所述液晶像素电路结构单元100包括：一第一像素电极10、一电连接所述第一像素电极10的第一数据线11、一电连接并控制所述第一数据线11的第一晶体管12、一电连接所述第一晶体管12的第一闸极线13，一第二数据线21、以及一第二闸极线23，其中，所述液晶像素电路结构单元100更包括: 一第二像素电极20、以及一第二晶体管22;其中，所述第二像素电极20与所述第一像素电极10重迭设置且彼此绝缘;且所述第二数据线21通过所述第二晶体管2与所述第二像素电极20电连接，所述第二闸极线23电连接所述第二晶体管22，其中，所述驱动液晶像素电路结构单元的方法包括：
方块101:提供所述第一数据线及所述第一闸极线一高准位电压以开启第一晶体管并且对第一像素电极充电，其中：
方块102:提供所述第二数据线及所述第二闸极线所述高准位电压以开启第二晶体管并且对第二像素电极充电。
参照图5，具体的，液晶像素电路结构单元100的等效电路如图所示。每个像素内包含两个等效电容：液晶电容Clc和耦合电容Cb。液晶电容Clc由CF基板公共电极和阵列基板像素电极形成，耦合电容Cb由重迭设置的所述第二像素电极20与所述第一像素电极10形成。
参照图6，液晶像素电路结构单元100的驱动时序如图所示。
于本揭示其中的一实施例中，所述液晶像素电路结构单元更包括一绝缘层(图未示)，设置于所述第一像素电极10与所述第二像素电极20之间。
于本揭示其中的一实施例中，所述第一像素电极10与所述第二像素电极20为透明电极。
具体的，透明电极的材料可为氧化铟锡(Indium Tin Oxide , IOT)、镍金双金属薄层(Ni/Au)、银/氧化银锌(Ag/AZO)双层结构等等，本揭示不限于此。
于本揭示其中的一实施例中，所述液晶像素电路结构单元更包括一第一通道层14与一第二通道层24，所述第一像素电极10通过所述第一通道层14与第一数据线11电连接，所述第二像素电极20通过所述第二通道层24与第二数据线21电连接。
参照图7，具体的，本揭示的实施例的所述液晶像素电路结构单元100的制作过程包括：在一基板上制作闸极线13、23；在基板上制作晶体管12、22及其电极；形成资料线11、21；制作第二通道层24；制作第二像素电极20；制作一绝缘层30（参照图2与图8，）；制作第一通道层14；以及制作第一像素电极10。
由于本揭示的实施例的所述液晶像素电路结构单元、液晶像素数阵列基板和驱动液晶像素电路结构单元的方法，包括第一像素电极、以及第二像素电极且所述第二像素电极与所述第一像素电极重迭设置且彼此绝缘。因此，可以第一数据线先对第一像素电极充电，然后以第二对第二像素电极充电，通过第一像素电极与第二像素电极的电容耦合，提升像素电极的电压，使液晶两端形成较高的电压差。能实现高驱动电压，满足CH-LC和PD-LC的驱动需求。
尽管已经相对于一个或多个实现方式示出并描述了本揭示，但是本领域技术人员基于对本说明书和附图的阅读和理解将会想到等价变型和修改。本揭示包括所有这样的修改和变型，并且仅由所附权利要求的范围限制。特别地关于由上述组件执行的各种功能，用于描述这样的组件的术语旨在对应于执行所述组件的指定功能（例如其在功能上是等价的）的任意组件（除非另外指示），即使在结构上与执行本文所示的本说明书的示范性实现方式中的功能的公开结构不等同。此外，尽管本说明书的特定特征已经相对于若干实现方式中的仅一个被公开，但是这种特征可以与如可以对给定或特定应用而言是期望和有利的其他实现方式的一个或多个其他特征组合。而且，就术语“包括”、“具有”、“含有”或其变形被用在具体实施方式或权利要求中而言，这样的术语旨在以与术语“包含”相似的方式包括。
以上仅是本揭示的优选实施方式，应当指出，对于本领域普通技术人员，在不脱离本揭示原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本揭示的保护范围。

Claims (15)

  1. 一种液晶像素电路结构单元，包括：一第一像素电极、一电连接所述第一像素电极的第一数据线、一电连接并控制所述第一数据线的第一晶体管、一电连接所述第一晶体管的第一闸极线，一第二数据线、以及一第二闸极线，其特征在于，所述液晶像素的电路结构单元更包括:
    一第二像素电极、以及一第二晶体管;其中
    所述第二像素电极与所述第一像素电极重迭设置且彼此绝缘;且
    所述第二数据线通过所述第二晶体管与所述第二像素电极电连接，所述第二闸极线电连接所述第二晶体管。
  2. 如权利要求1所述的液晶像素电路结构单元，其特征在于，所述液晶像素电路结构单元更包括一绝缘层，设置于所述第一像素电极与所述第二像素电极之间。
  3. 如权利要求1所述的液晶像素电路结构单元，其特征在于，所述第一像素电极与所述第二像素电极为透明电极。
  4. 如权利要求3所述的液晶像素电路结构单元，其特征在于，所述透明电极的材料包含下列之一：氧化铟锡、镍金双金属薄层、及银/氧化银锌双层结构。
  5. 如权利要求1所述的液晶像素电路结构单元，其特征在于，所述液晶像素电路结构单元更包括一第一通道层与一第二通道层，所述第一像素电极通过所述第一通道层与所述第一数据线电连接，所述第二像素电极通过所述第二通道层与所述第二数据线电连接。
  6. 一种液晶显示面板包括一液晶像素数阵列基板、及一控制单元，所述控制单元用以控制所述液晶像素数阵列基板，所述液晶像素数阵列基板包括一基板、及多个液晶像素电路结构单元设置于基板上，其中，每一液晶像素电路结构单元包括：一第一像素电极、一电连接所述第一像素电极的第一数据线、一电连接并控制所述第一数据线的第一晶体管、一电连接所述第一晶体管的第一闸极线，一第二数据线、以及一第二闸极线，其特征在于，所述液晶像素电路结构单元更包括:
    一第二像素电极、以及一第二晶体管;其中
    所述第二像素电极与所述第一像素电极在所述基板上重迭设置且彼此绝缘;且
    所述第二数据线通过所述第二晶体管与所述第二像素电极电连接，所述第二闸极线电连接所述第二晶体管。
  7. 如权利要求6所述的液晶显示面板，其特征在于，所述液晶像素电路结构单元更包括一绝缘层，设置于所述第一像素电极与所述第二像素电极之间。
  8. 如权利要求6所述的液晶显示面板，其特征在于，所述第一像素电极与所述第二像素电极为透明电极。
  9. 如权利要求8所述的液晶显示面板，其特征在于，所述透明电极的材料包含下列之一：氧化铟锡、镍金双金属薄层、及银/氧化银锌双层结构。
  10.     如权利要求6所述的液晶显示面板，其特征在于，所述液晶像素电路结构单元更包括一第一通道层与一第二通道层，所述第一像素电极通过所述第一通道层与所述第一数据线电连接，所述第二像素电极通过所述第二通道层与所述第二数据线电连接。
  11. 一种驱动液晶像素电路结构单元的方法，其中，所述液晶像素电路结构单元包括：一第一像素电极、一电连接所述第一像素电极的第一数据线、一电连接并控制所述第一数据线的第一晶体管、一电连接所述第一晶体管的第一闸极线，一第二数据线、以及一第二闸极线，其中，所述液晶像素的电路结构单元更包括: 一第二像素电极、以及一第二晶体管;其中，所述第二像素电极与所述第一像素电极重迭设置且彼此绝缘;且所述第二数据线通过所述第二晶体管与所述第二像素电极电连接，所述第二闸极线电连接所述第二晶体管，其中，所述驱动液晶像素电路结构单元的方法包括：
    提供所述第一数据线及所述第一闸极线一高准位电压以开启第一晶体管并且对第一像素电极充电，其特征在于：
    提供所述第二数据线及所述第二闸极线所述高准位电压以开启第二晶体管并且对第二像素电极充电。
  12. 根据权利要求11所述的驱动液晶像素电路结构单元的方法，其特征在于，所述液晶像素电路结构单元更包括一绝缘层，设置于所述第一像素电极与所述第二像素电极之间。
  13. 根据权利要求11所述的驱动液晶像素电路结构单元的方法，其特征在于，所述第一像素电极与所述第二像素电极为透明电极。
  14.     根据权利要求13所述的驱动液晶像素电路结构单元的方法，其特征在于，所述透明电极的材料包含下列之一：氧化铟锡、镍金双金属薄层、及银/氧化银锌双层结构。
  15. 根据权利要求11所述的驱动液晶像素电路结构单元的方法，其特征在于，所述液晶像素电路结构单元更包括一第一通道层与一第二通道层，所述第一像素电极通过所述第一通道层与所述第一数据线电连接，所述第二像素电极通过所述第二通道层与所述第二数据线电连接。
PCT/CN2019/084487 2019-01-22 2019-04-26 液晶像素电路结构单元、液晶显示面板及其驱动方法 WO2020151120A1 (zh)

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