WO2016074253A1 - 液晶显示装置及其液晶显示面板 - Google Patents

液晶显示装置及其液晶显示面板 Download PDF

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WO2016074253A1
WO2016074253A1 PCT/CN2014/091257 CN2014091257W WO2016074253A1 WO 2016074253 A1 WO2016074253 A1 WO 2016074253A1 CN 2014091257 W CN2014091257 W CN 2014091257W WO 2016074253 A1 WO2016074253 A1 WO 2016074253A1
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Prior art keywords
liquid crystal
crystal display
layer
substrate
reflective
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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 US14/426,156 priority Critical patent/US10191325B2/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133553—Reflecting elements
    • G02F1/133555—Transflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133742—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers for homeotropic alignment
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/121—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode common or background
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/123—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode pixel
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2203/00—Function characteristic
    • G02F2203/09—Function characteristic transflective
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0456—Pixel structures with a reflective area and a transmissive area combined in one pixel, such as in transflectance pixels

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular to a transflective liquid crystal display panel and a liquid crystal display device having the liquid crystal display panel.
  • the liquid crystal display panel requires a light source to display an image, which can be classified into a transmissive type, a reflective type, and a transflective type depending on the type of the light source.
  • the transmissive liquid crystal display panel uses a backlight as a light source, and the pixel electrode is a transparent electrode as a transmissive area, which is beneficial for the light of the backlight to transmit through the liquid crystal layer to display an image;
  • the reflective liquid crystal display panel has a front light source or an external light source as a light source, The reflective layer having a good reflective property is used as a reflective region, and is suitable for reflecting light of a front light source or an external light source;
  • the transflective liquid crystal display panel can be regarded as a combination of a transmissive type and a reflective type, and is provided with a reflective area and a transmissive area.
  • the backlight, the front light source or the external light source is used for display.
  • the transflective liquid crystal display panel has the advantages of both transmissive and reflective liquid crystal display panels, and can display bright images in a dark environment, which is convenient for indoor use or outdoor use.
  • the existing transflective liquid crystal display panel has a large driving voltage and a large energy consumption when achieving a transflective display effect.
  • the technical problem to be solved by the embodiments of the present invention is to provide a liquid crystal display device and a liquid crystal display panel thereof, which adopt a new electrode structure to realize a transflective display effect and reduce a driving voltage of the liquid crystal display panel.
  • a technical solution adopted by the present invention is to provide a liquid crystal display panel having a plurality of pixel units, a first substrate and a second substrate disposed at a relatively spaced interval, and sandwiching between the two a liquid crystal layer, wherein: each pixel unit includes a reflective region and a transmissive region and a thin film transistor; the first substrate is disposed adjacent to the liquid crystal layer with a pixel electrode and a reflective layer, and the pixel electrode corresponds to the transmissive region, and the reflective layer The layer corresponds to the reflective region; the second substrate is disposed adjacent to the liquid crystal layer with a common electrode, and the common electrode corresponds to the reflective region and In the transmissive region, the common electrode is a full-surface electrode layer disposed on the second substrate; wherein the first substrate is an array substrate, and the second substrate is a color filter substrate, and a voltage is applied to the pixel electrode and the common electrode corresponding to the transmissive region, A transflective display of the liquid crystal display panel
  • the widths of the reflective area and the transmissive area are not equal, and the box thicknesses of the two are equal.
  • the width of the pixel electrode is equal to the width of the reflective layer.
  • the reflective layer is a metal layer that is opaque.
  • each pixel unit includes a reflective region and a transmissive region which are alternately disposed, a pixel electrode and a reflective layer are disposed on a side of the first substrate adjacent to the liquid crystal layer, and the pixel electrode corresponds to the transmissive region, and the reflective layer corresponds to a reflective electrode; a common electrode is disposed on a side of the second substrate adjacent to the liquid crystal layer, and the common electrode corresponds to the reflective region and the transmissive region; wherein a voltage is applied to the pixel electrode and the common electrode corresponding to the transmissive region to realize the liquid crystal display panel Semi-transparent display.
  • the liquid crystal layer is a negative liquid crystal layer, and the liquid crystal layer is vertically oriented when no voltage is applied.
  • Each of the pixel units further includes a thin film transistor connected to the pixel electrode and configured to supply a driving voltage to the pixel electrode.
  • the widths of the reflective area and the transmissive area are not equal, and the box thicknesses of the two are equal.
  • the width of the pixel electrode is equal to the width of the reflective layer.
  • the common electrode is a full-surface electrode layer disposed on the second substrate.
  • the reflective layer is a metal layer that is opaque.
  • the first substrate is an array substrate
  • the second substrate is a color film substrate.
  • another technical solution adopted by the present invention is to provide a liquid crystal display device including the above liquid crystal display panel.
  • the first polarizer is disposed on a side of the first substrate facing away from the liquid crystal layer
  • the second polarizer is disposed on a side of the second substrate facing away from the liquid crystal layer
  • the first polarizer and the second polarizer are both opposite to the reflective region.
  • the transmission area corresponds to the setting.
  • the liquid crystal layer is a negative liquid crystal layer, and the liquid crystal layer is vertically oriented when no voltage is applied.
  • Each of the pixel units further includes a thin film transistor connected to the pixel electrode and configured to supply a driving voltage to the pixel electrode.
  • the widths of the reflective area and the transmissive area are not equal, and the box thicknesses of the two are equal.
  • the width of the pixel electrode is equal to the width of the reflective layer.
  • the common electrode is a full-surface electrode layer disposed on the second substrate.
  • the reflective layer is a metal layer that is opaque.
  • each pixel unit of the liquid crystal display panel of the embodiment of the present invention includes a reflective region and a transmissive region which are arranged in a staggered manner, and the reflective region and the common electrode are correspondingly disposed in the reflective region.
  • the transmissive area is correspondingly disposed with the pixel electrode and the common electrode.
  • FIG. 1 is a cross-sectional view showing the structure of a liquid crystal display panel in accordance with a preferred embodiment of the present invention
  • FIG. 2 is a cross-sectional view showing the structure of a pixel unit in a preferred embodiment of the present invention when no voltage is applied;
  • Fig. 3 is a cross-sectional view showing the structure of a pixel unit according to a preferred embodiment of the present invention when a voltage is applied.
  • FIG. 1 is a cross-sectional view showing the structure of a liquid crystal display panel in accordance with a preferred embodiment of the present invention.
  • the liquid crystal display panel 10 of the present embodiment includes a first substrate 11, a second substrate 12, a liquid crystal layer 13, and a plurality of pixel units (not shown).
  • the first substrate 11 and the second substrate 12 are relatively spaced apart, wherein the first substrate 11 is a TFT (Thin Film Transistor) array substrate, and the first substrate 11 includes a transparent substrate and various wirings disposed on the transparent substrate. a pixel electrode or the like, the second substrate 12 is CF (color filter, color filter) color film substrate.
  • TFT Thin Film Transistor
  • CF color filter, color filter
  • the liquid crystal layer 13 is filled and sandwiched between the first substrate 11 and the second substrate 12.
  • the liquid crystal layer 13 preferably includes liquid crystal molecules 131 having negative dielectric anisotropy and mixed in the liquid crystal molecules 131.
  • Multiple reactive monomers are liquid crystal materials having a deflection orientation characteristic which is generated in a specific direction by applying a driving voltage, which achieves a different deflection orientation by a threshold value of the applied driving voltage, and when no voltage is applied to the liquid crystal display panel 10
  • the liquid crystal layer 13 (liquid crystal molecules 131) is vertically oriented;
  • the reactive monomer is a polymerizable monomer, which includes an acrylate resin monomer molecule, a methacrylate resin monomer molecule, a vinyl resin monomer molecule, Any combination of a vinyloxy resin monomer molecule, an epoxy resin monomer molecule, and the like.
  • each pixel unit in the liquid crystal display panel 10 includes a plurality of sub-pixels, and the structure of each pixel unit is similar, one of the pixel units 20 will be described below as an example.
  • the pixel unit 20 includes a liquid crystal layer 13 corresponding to a region, and a pixel electrode 111 and a reflective layer 112 disposed on a side of the first substrate 11 adjacent to the liquid crystal layer 13 and disposed adjacent to the second substrate 12
  • the common electrode 121 on the side of the liquid crystal layer 13.
  • the reflective layer 112 is an opaque metal or a material having good light-reflecting properties.
  • the common electrode 121 and the pixel electrode 111 are transparent electrode layers, and the materials of the common electrode 121 and the pixel electrode 111 may be the same or different, for example, Indium tin oxide (ITO), indium zinc oxide (IZO) or any other combination of materials having both light transmissivity and electrical conductivity.
  • the width of the pixel electrode 111 is equal to the width of the reflective layer 112, and the pixel electrode 111 and the reflective layer 112 are spaced apart from each other on the first substrate 11.
  • the pixel unit 20 includes the reflective region A and the transmissive region B which are alternately disposed, and the widths of the reflective region A and the transmissive region B are not equal, and the cell thicknesses of the two are equal.
  • the pixel electrode 111 is located in a region defined by the transmissive region B
  • the reflective layer 112 is located in a region defined by the reflective region A
  • the common electrode 121 is located in the reflective region A and the transmissive region B.
  • the common electrode 121 is disposed in the second region.
  • the pixel electrode 111 and the common electrode 121 corresponding to the transmissive area B when a voltage is applied to the pixel electrode 111 and the common electrode 121 corresponding to the transmissive area B, it is not necessary to apply a voltage to the reflective layer 112 of the reflective area A.
  • the data line and the scan line intersecting vertically and horizontally are formed on the first substrate 11, and the pixel electrode of the pixel unit 20
  • the 111 is disposed in a region defined by the data line and the scanning line, and the pixel unit 20 applies a driving voltage to the pixel electrode 111 through a thin film transistor connected to the pixel electrode 111, and the pixel electrode 111 and the common electrode 121 apply the same voltage.
  • the negative liquid crystal molecules 131 corresponding to the transmissive region B (the region corresponding to the pixel electrode 111 and the common electrode 121) are gradually deflected into horizontal alignment by the influence of the vertical electric field, resulting in a large horizontal phase.
  • the oblique electric field is formed between the pixel electrode 111 of the adjacent transmissive area B and the common electrode 121 corresponding to the reflective area A, and the electric field lines are arranged in an oblique direction, thus corresponding to the reflective area
  • the negative liquid crystal molecules 131 of A (the region corresponding to the reflective layer 112 and the common electrode 121) are gradually deflected into an oblique arrangement, resulting in a small horizontal phase delay.
  • the negative liquid crystal molecules 131 of the transmissive region B generate a large horizontal phase retardation of ⁇ n1
  • the negative liquid crystal molecules 131 of the reflective region A generate a small horizontal phase retardation of ⁇ n2, passing through the width of the pixel electrode 111 of the transmissive region B.
  • d1 represents the optical path of the light passing through the transmissive area B
  • d2 represents the light passing through the reflection area A.
  • the design of the electrode structure of the reflective area A and the transmissive area B in the present embodiment uses a uniform vertical electric field when applying a voltage, thereby ensuring that the electric field lines are arranged in parallel, thereby reducing the required liquid crystal display panel 10.
  • the present invention also provides a liquid crystal display device comprising the liquid crystal display surface described in the above embodiments
  • the board 10 can be any terminal having a display function such as a smartphone, a tablet, a television, a navigator or the like.
  • a first polarizer is disposed on a side of the first substrate 11 facing away from the liquid crystal layer 13, and a second polarizer, a first polarizer and a second polarizer are disposed on a side of the second substrate 12 facing away from the liquid crystal layer 13.
  • the sheets are each arranged corresponding to the reflection area A and the transmission area B.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Engineering & Computer Science (AREA)
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Abstract

一种液晶显示装置及其液晶显示面板（10）。液晶显示面板（10）的每一像素单元（20）包括交错设置的反射区（A）和透射区（B），且反射区（A）对应设置反射层（112）和公共电极（121）、透射区（B）对应设置像素电极（111）和公共电极（121），通过对像素电极（111）和公共电极（121）施加电压，实现液晶显示面板（10）的半透半反显示。通过上述方式，可降低驱动电压，提高光的透过率并增大显示视角，采用竖直取向可减少暗态漏光，提高显示对比度，并且采用单盒厚结构可降低制造工艺难度。

Description

液晶显示装置及其液晶显示面板 【技术领域】
本发明涉及液晶显示技术领域，特别是涉及一种半透半反的液晶显示面板以及具有该液晶显示面板的液晶显示装置。
【背景技术】
由于液晶分子自身不发光，因此液晶显示面板需要光源以显示图像，根据采用光源的类型，其可分为透射式、反射式和透反式。其中：透射式液晶显示面板以背光源作为光源，像素电极为透明电极作为透射区，有利于背光源的光线透射穿过液晶层以显示图像；反射式液晶显示面板以前光源或外界光源作为光源，具有良好反射特性材料的反射层作为反射区，适于将前光源或外界光源的光线反射；透反式液晶显示面板可视为透射式与反射式的结合，设置有反射区和透射区，可同时利用背光源、前光源或外界光源进行显示。
透反式液晶显示面板兼具透射式和反射式液晶显示面板的优点，既可以在暗的环境下显示明亮的图像，便于室内使用，也可以在室外使用。然而，现有的透反式液晶显示面板在实现半透半反的显示效果时，所需的驱动电压较大，能耗较大。
【发明内容】
有鉴于此，本发明实施例所要解决的技术问题是提供一种液晶显示装置及其液晶显示面板，采用新的电极结构以实现半透半反的显示效果，降低液晶显示面板的驱动电压。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种液晶显示面板，该液晶显示面板具有多个像素单元、相对间隔设置的第一基板和第二基板以及夹持于两者之间的液晶层，其中：每一像素单元包括交错设置的反射区和透射区以及薄膜晶体管；第一基板邻近液晶层的一侧设置有像素电极和反射层，且像素电极对应于透射区，反射层对应于反射区；第二基板邻近液晶层的一侧设置有公共电极，且公共电极对应于反射区和 透射区，公共电极为设置于第二基板上的一整面电极层；其中，第一基板为阵列基板，第二基板为彩膜基板，为对应于透射区的像素电极和公共电极施加电压，实现液晶显示面板的半透半反显示，薄膜晶体管与像素电极连接且用于为像素电极提供驱动电压，液晶层为负性液晶层，且在未施加电压时液晶层为竖直取向。
其中，反射区和透射区的宽度不相等，且两者的盒厚相等。
其中，像素电极的宽度与反射层的宽度相等。
其中，反射层为不透光的金属层。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种液晶显示面板，该液晶显示面板具有多个像素单元、相对间隔设置的第一基板和第二基板以及夹持于两者之间的液晶层，其中：每一像素单元包括交错设置的反射区和透射区，第一基板邻近液晶层的一侧设置有像素电极和反射层，且像素电极对应于透射区，反射层对应于反射区；第二基板邻近液晶层的一侧设置有公共电极，且公共电极对应于反射区和透射区；其中，为对应于透射区的像素电极和公共电极施加电压，实现液晶显示面板的半透半反显示。
其中，液晶层为负性液晶层，且在未施加电压时液晶层为竖直取向。
其中，每一像素单元还包括与像素电极连接且用于为像素电极提供驱动电压的薄膜晶体管。
其中，反射区和透射区的宽度不相等，且两者的盒厚相等。
其中，像素电极的宽度与反射层的宽度相等。
其中，公共电极为设置于第二基板上的一整面电极层。
其中，反射层为不透光的金属层。
其中，第一基板为阵列基板，第二基板为彩膜基板。
为解决上述技术问题，本发明采用的又一个技术方案是：提供一种液晶显示装置，包括上述液晶显示面板。
其中，第一基板背向液晶层的一侧设置有第一偏光片，第二基板背向液晶层的一侧设置有第二偏光片，第一偏光片和第二偏光片均与反射区和透射区对应设置。
其中，液晶层为负性液晶层，且在未施加电压时液晶层为竖直取向。
其中，每一像素单元还包括与像素电极连接且用于为像素电极提供驱动电压的薄膜晶体管。
其中，反射区和透射区的宽度不相等，且两者的盒厚相等。
其中，像素电极的宽度与反射层的宽度相等。
其中，公共电极为设置于第二基板上的一整面电极层。
其中，反射层为不透光的金属层。
通过上述技术方案，本发明实施例所产生的有益效果是：本发明实施例设计液晶显示面板的每一像素单元包括交错设置的反射区和透射区，且反射区对应设置反射层和公共电极、透射区对应设置像素电极和公共电极，通过对像素电极和公共电极施加电压，而无需对反射区的反射层施加电压，即可控制实现液晶显示面板的半透半反显示，可大大降低液晶显示面板所需的驱动电压。
【附图说明】
图1是本发明优选实施例的液晶显示面板的结构剖视图；
图2是本发明优选实施例的像素单元未施加电压时的结构剖视图；
图3是本发明优选实施例的像素单元施加电压时的结构剖视图。
【具体实施方式】
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，本发明以下所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
图1是本发明优选实施例的液晶显示面板的结构剖视图。请参阅图1所示，本实施例的液晶显示面板10包括第一基板11、第二基板12、液晶层13以及多个像素单元(未图示)。
第一基板11和第二基板12相对间隔设置，其中第一基板11为TFT(Thin Film Transistor，薄膜晶体管)阵列基板，第一基板11包括透明基体以及设置于透明基体上的各种配线和像素电极等，第二基板12为CF (color filter，彩色滤光片)彩膜基板。
液晶层13填充夹持于第一基板11和第二基板12之间，本实施例优选液晶层13包括介电各向异性(Dielectric Anisotropy)为负的液晶分子131以及混合于液晶分子131之中的多个反应单体。其中，液晶分子131为具有通过施加驱动电压即在特定方向上发生偏转取向特性的液晶材料，其通过施加的驱动电压的阀值以实现不同的偏转取向，并且在液晶显示面板10未施加电压时液晶层13(的液晶分子131)为竖直取向；反应单体为聚合性单体，其包括丙烯酸酯类树脂单体分子、甲基丙烯酸酯类树脂单体分子、乙烯基树脂单体分子、乙烯氧基树脂单体分子、环氧树脂单体分子等的任意组合。
图2是本发明优选实施例的像素单元的结构剖视图。鉴于液晶显示面板10中每个像素单元包括多个子像素，且每个像素单元的结构是类似的，下文以其中一个像素单元20为例进行说明。
请结合图1和图2所示，像素单元20包括对应区域的液晶层13，以及设置于第一基板11邻近液晶层13一侧的像素电极111和反射层112，设置于第二基板12邻近液晶层13一侧的公共电极121。
其中，优选反射层112为不透光金属或具有良好反光特性材料，优选公共电极121和像素电极111均为透明电极层，公共电极121和像素电极111的材料可以相同也可以不相同，例如为氧化铟锡(ITO)、氧化铟锌(IZO)或者是其他同时具有透光性和导电性的材料的任意组合。优选像素电极111的宽度与反射层112的宽度相等，且像素电极111与反射层112间隔设置在第一基板11上。
在本实施例中，像素单元20包括交错设置的反射区A和透射区B，反射区A和透射区B的宽度不相等，且两者的盒厚相等。像素电极111对应位于透射区B所限定的区域内，反射层112对应位于反射区A所限定的区域内，公共电极121对应位于反射区A和透射区B，优选公共电极121为设置于第二基板12上的一整面电极层。
请进一步结合图3所示，在为对应于透射区B的像素电极111和公共电极121施加电压时，无需为反射区A的反射层112施加电压。其中，第一基板11上形成有纵横交叉的数据线和扫描线，像素单元20的像素电极 111设置于数据线和扫描线所限定的区域内，像素单元20通过与像素电极111连接的薄膜晶体管为像素电极111施加驱动电压，且像素电极111和公共电极121施加相同的电压。
施加电压时，对应于透射区B(像素电极111与公共电极121之间所对应的区域)的负性液晶分子131受竖直电场的影响而逐渐变偏转为水平排列，产生较大的水平相位延迟；而由于反射区A未设置像素电极111，相邻透射区B的像素电极111与反射区A对应的公共电极121之间形成倾斜电场，电场线呈倾斜方向排布，因此对应于反射区A(反射层112与公共电极121之间所对应的区域)的负性液晶分子131逐渐偏转为倾斜排列，产生较小的水平相位延迟。
假设透射区B的负性液晶分子131产生较大的水平相位延迟为Δn1，反射区A的负性液晶分子131产生较小的水平相位延迟为Δn2，通过对透射区B的像素电极111的宽度和相邻像素电极111的电极间距的优化，即可使得光线通过透射区B比通过反射区A产生更大的水平相位延迟，例如Δn1＝2*Δn2。而反射区A的光线因为被反射层112反射的缘故相当于两次经过液晶层13，即d2＝2*d1，其中d1表示光线通过透射区B的光程，d2表示光线通过反射区A的光程。
总体而言，光线通过透射区B的相位延迟量等于通过反射区A的相位延迟量，即Δn1*d1＝Δn2*d2，实现透射区B和反射区A的相位延迟量的匹配，即可最终达到半透半反的显示效果。
基于上述，可知本实施例通过上述反射区A和透射区B的电极结构的设计，施加电压时采用均匀的竖直电场，能够保证各条电场线平行排列，从而降低液晶显示面板10所需的驱动电压，提高光的透过率，扩大显示视角；同时，仅通过为对应于透射区B的像素电极111和公共电极121施加电压，而无需对反射区A的反射层112施加电压，即可控制实现液晶显示面板20的半透半反显示；此外，由于采用负性的液晶层13，在不施加电压时液晶分子131竖直取向，可以减少暗态漏光，提高显示对比度；并且，反射区A和透射区B采用单盒厚结构，可降低液晶显示面板20的制造工艺难度。
本发明还提供一种液晶显示装置，包括上述实施例所述的液晶显示面 板10，该液晶显示装置可以为智能手机、平板电脑、电视机、导航仪等具有显示功能的任何终端。
优选地，在第一基板11背向液晶层13的一侧设置有第一偏光片，第二基板12背向液晶层13的一侧设置有第二偏光片，第一偏光片和第二偏光片均与反射区A和透射区B对应设置。
再次说明，以上所述仅为本发明的实施例，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，例如各实施例之间技术特征的相互结合，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 (20)

  1. 一种液晶显示面板，具有多个像素单元、相对间隔设置的第一基板和第二基板以及夹持于两者之间的液晶层，其中：
    每一所述像素单元包括交错设置的反射区和透射区以及薄膜晶体管；
    所述第一基板邻近所述液晶层的一侧设置有像素电极和反射层，且所述像素电极对应于所述透射区，所述反射层对应于所述反射区；
    所述第二基板邻近所述液晶层的一侧设置有公共电极，且所述公共电极对应于所述反射区和所述透射区，所述公共电极为设置于所述第二基板上的一整面电极层；
    其中，所述第一基板为阵列基板，所述第二基板为彩膜基板，为对应于所述透射区的所述像素电极和所述公共电极施加电压，实现所述液晶显示面板的半透半反显示，所述薄膜晶体管与所述像素电极连接且用于为所述像素电极提供驱动电压，所述液晶层为负性液晶层，且在未施加电压时所述液晶层为竖直取向。
  2. 根据权利要求1所述的液晶显示面板，其中，所述反射区和所述透射区的宽度不相等，且两者的盒厚相等。
  3. 根据权利要求2所述的液晶显示面板，其中，所述像素电极的宽度与所述反射层的宽度相等。
  4. 根据权利要求1所述的液晶显示面板，其中，所述反射层为不透光的金属层。
  5. 一种液晶显示面板，具有多个像素单元、相对间隔设置的第一基板和第二基板以及夹持于两者之间的液晶层，其中：
    每一所述像素单元包括交错设置的反射区和透射区；
    所述第一基板邻近所述液晶层的一侧设置有像素电极和反射层，且所述像素电极对应于所述透射区，所述反射层对应于所述反射区；
    所述第二基板邻近所述液晶层的一侧设置有公共电极，且所述公共电极对应于所述反射区和所述透射区；
    其中，为对应于所述透射区的所述像素电极和所述公共电极施加电压，实现所述液晶显示面板的半透半反显示。
  6. 根据权利要求5所述的液晶显示面板，其中，所述液晶层为负性液晶层，且在未施加电压时所述液晶层为竖直取向。
  7. 根据权利要求5所述的液晶显示面板，其中，每一所述像素单元还包括与所述像素电极连接且用于为所述像素电极提供驱动电压的薄膜晶体管。
  8. 根据权利要求5所述的液晶显示面板，其中，所述反射区和所述透射区的宽度不相等，且两者的盒厚相等。
  9. 根据权利要求8所述的液晶显示面板，其中，所述像素电极的宽度与所述反射层的宽度相等。
  10. 根据权利要求5所述的液晶显示面板，其中，所述公共电极为设置于所述第二基板上的一整面电极层。
  11. 根据权利要求5所述的液晶显示面板，其中，所述反射层为不透光的金属层。
  12. 根据权利要求5-11所述的液晶显示面板，其中，所述第一基板为阵列基板，所述第二基板为彩膜基板。
  13. 一种液晶显示装置，其中，所述液晶显示装置包括液晶显示面板，所述液晶显示面板具有多个像素单元、相对间隔设置的第一基板和第二基板以及夹持于两者之间的液晶层，其中：
    每一所述像素单元包括交错设置的反射区和透射区；
    所述第一基板邻近所述液晶层的一侧设置有像素电极和反射层，且所述像素电极对应于所述透射区，所述反射层对应于所述反射区；
    所述第二基板邻近所述液晶层的一侧设置有公共电极，且所述公共电极对应于所述反射区和所述透射区；
    为对应于所述透射区的所述像素电极和所述公共电极施加电压，实现所述液晶显示面板的半透半反显示。
  14. 根据权利要求13所述的液晶显示装置，其中，所述第一基板背向所述液晶层的一侧设置有第一偏光片，所述第二基板背向所述液晶层的一侧设置有第二偏光片，所述第一偏光片和所述第二偏光片均与所述反射区和所述透射区对应设置。
  15. 根据权利要求13所述的液晶显示装置，其中，所述液晶层为负性 液晶层，且在未施加电压时所述液晶层为竖直取向。
  16. 根据权利要求13所述的液晶显示装置，其中，每一所述像素单元还包括与所述像素电极连接且用于为所述像素电极提供驱动电压的薄膜晶体管。
  17. 根据权利要求13所述的液晶显示装置，其中，所述反射区和所述透射区的宽度不相等，且两者的盒厚相等。
  18. 根据权利要求17所述的液晶显示装置，其中，所述像素电极的宽度与所述反射层的宽度相等。
  19. 根据权利要求13所述的液晶显示装置，其中，所述公共电极为设置于所述第二基板上的一整面电极层。
  20. 根据权利要求13所述的液晶显示装置，其中，所述反射层为不透光的金属层。
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